TY  - JOUR
AU  - Ćurčić, Jovana
AU  - Dinić, Miroslav
AU  - Novović, Katarina
AU  - Vasiljević, Zorica
AU  - Kojić, Milan
AU  - Jovčić, Branko
AU  - Malešević, Milka
PY  - 2024
UR  - http://intor.torlakinstitut.com/handle/123456789/864
AB  - Infections caused by multidrug-resistant pathogens are one of the biggest challenges facing the healthcare system today. Quorum quenching (QQ) enzymes have the potential to be used as innovative enzyme-based antivirulence therapeutics to combat infections caused by multidrug-resistant pathogens. The main objective of this research was to describe the novel YtnP lactonase derived from the clinical isolate Stenotrophomonas maltophilia and to investigate its antivirulence potential against multidrug-resistant Pseudomonas aeruginosa MMA83. YtnP lactonase, the QQ enzyme, belongs to the family of metallo-β-lactamases. The recombinant enzyme has several advantageous biotechnological properties, such as high thermostability, activity in a wide pH range, and no cytotoxic effect. High-performance liquid chromatography analysis revealed the activity of recombinant YtnP lactonase toward a wide range of N-acyl-homoserine lactones (AHLs), quorum sensing signaling molecules, with a higher preference for long-chain AHLs. Recombinant YtnP lactonase was shown to inhibit P. aeruginosa MMA83 biofilm formation, induce biofilm decomposition, and reduce extracellular virulence factors production. Moreover, the lifespan of MMA83-infected Caenorhabditis elegans was prolonged with YtnP lactonase treatment. YtnP lactonase showed synergistic inhibitory activity in combination with gentamicin and acted additively with meropenem against MMA83. The described properties make YtnP lactonase a promising therapeutic candidate for the development of next-generation antivirulence agents.
T2  - International Journal of Biological Macromolecules
T1  - A novel thermostable YtnP lactonase from Stenotrophomonas maltophilia inhibits Pseudomonas aeruginosa virulence in vitro and in vivo
SP  - 130421
DO  - 10.1016/j.ijbiomac.2024.130421
ER  - 

@article{
author = "Ćurčić, Jovana and Dinić, Miroslav and Novović, Katarina and Vasiljević, Zorica and Kojić, Milan and Jovčić, Branko and Malešević, Milka",
year = "2024",
abstract = "Infections caused by multidrug-resistant pathogens are one of the biggest challenges facing the healthcare system today. Quorum quenching (QQ) enzymes have the potential to be used as innovative enzyme-based antivirulence therapeutics to combat infections caused by multidrug-resistant pathogens. The main objective of this research was to describe the novel YtnP lactonase derived from the clinical isolate Stenotrophomonas maltophilia and to investigate its antivirulence potential against multidrug-resistant Pseudomonas aeruginosa MMA83. YtnP lactonase, the QQ enzyme, belongs to the family of metallo-β-lactamases. The recombinant enzyme has several advantageous biotechnological properties, such as high thermostability, activity in a wide pH range, and no cytotoxic effect. High-performance liquid chromatography analysis revealed the activity of recombinant YtnP lactonase toward a wide range of N-acyl-homoserine lactones (AHLs), quorum sensing signaling molecules, with a higher preference for long-chain AHLs. Recombinant YtnP lactonase was shown to inhibit P. aeruginosa MMA83 biofilm formation, induce biofilm decomposition, and reduce extracellular virulence factors production. Moreover, the lifespan of MMA83-infected Caenorhabditis elegans was prolonged with YtnP lactonase treatment. YtnP lactonase showed synergistic inhibitory activity in combination with gentamicin and acted additively with meropenem against MMA83. The described properties make YtnP lactonase a promising therapeutic candidate for the development of next-generation antivirulence agents.",
journal = "International Journal of Biological Macromolecules",
title = "A novel thermostable YtnP lactonase from Stenotrophomonas maltophilia inhibits Pseudomonas aeruginosa virulence in vitro and in vivo",
pages = "130421",
doi = "10.1016/j.ijbiomac.2024.130421"
}

Ćurčić, J., Dinić, M., Novović, K., Vasiljević, Z., Kojić, M., Jovčić, B.,& Malešević, M.. (2024). A novel thermostable YtnP lactonase from Stenotrophomonas maltophilia inhibits Pseudomonas aeruginosa virulence in vitro and in vivo. in International Journal of Biological Macromolecules, 130421.
https://doi.org/10.1016/j.ijbiomac.2024.130421

Ćurčić J, Dinić M, Novović K, Vasiljević Z, Kojić M, Jovčić B, Malešević M. A novel thermostable YtnP lactonase from Stenotrophomonas maltophilia inhibits Pseudomonas aeruginosa virulence in vitro and in vivo. in International Journal of Biological Macromolecules. 2024;:130421.
doi:10.1016/j.ijbiomac.2024.130421 .

Ćurčić, Jovana, Dinić, Miroslav, Novović, Katarina, Vasiljević, Zorica, Kojić, Milan, Jovčić, Branko, Malešević, Milka, "A novel thermostable YtnP lactonase from Stenotrophomonas maltophilia inhibits Pseudomonas aeruginosa virulence in vitro and in vivo" in International Journal of Biological Macromolecules (2024):130421,
https://doi.org/10.1016/j.ijbiomac.2024.130421 . .

TY  - CONF
AU  - Ćurčić, Jovana
AU  - Jakovljević, Stefan
AU  - Novović, Katarina
AU  - Vasiljević, Zorica
AU  - Kojić, Milan
AU  - Jovčić, Branko
AU  - Malešević, Milka
PY  - 2023
UR  - http://intor.torlakinstitut.com/handle/123456789/803
AB  - Introduction: Quorum quenching (QQ) isthe enzymatic degradation of cell-to-cellsignaling molecules.
In this study, the potential of the novel YtnP lactonase, the quorum quenching enzyme derived from S.
maltophilia, to reduce P. aeruginosa quorum sensing and virulence factor gene expression was investigated.
Methods: MMA83 culture (adjusted to 1.5x105 CFU/ml) was treated with recombinant YtnP lactonase
(final concentration 50 μg/ml) at 37°C for 12 hours under aeration. RNA isolation of the treated and untreated MMA83 culture was performed using the RNeasy Mini Kit (Qiagen, Germany) according to the
protocol. Quantitative reverse transcription-polymerase chain reaction (RT-qPCR), was used to analyze
the effect ofYtnP lactonase on the relative mRNA levels of the LasI/LasR, RhiI/RhiR, and PQS signaling network genes of P. aeruginosa MMA83 and virulence factor genes. The rpsL was used as an endogenous
control to normalize obtained data following the 2-ΔΔCt method.
Results: The QS genes belonging to three QS networks – LasI/LasR, RhiI/RhiR, and PQS of P. aeruginosa
MMA83 treated with YtnP lactonase were significantly downregulated. The RT -qPCR results show that
treatment with YtnP-lactonase decreased the relative mRNA levels of genes involved in the production
of elastase (lasB approximately 2-fold), alginate (algK approximately 2.2-fold), pyocyanin (phzM approximately 3.5-fold), pyoverdin (pvdS approximately 2-fold), and rhamnolipid (rhlC approximately 4-fold).
These results suggest that YtnP lactonase exerts an antivirulence effect at the transcription level.
Conclusion: YtnP lactonase, a quorum quenching (QQ) enzyme, has the potential to be used as an innovative enzyme-based antivirulence therapeutic to combat infections caused by P. aeruginosa.
PB  - Institute of Molecular Genetics and Genetic Engineering (IMGGE), University of Belgrade
C3  - CoMBoS2 – the Second Congress of Molecular Biologists of Serbia, Abstract Book – Trends in Molecular Biology, Special issue 06-08 October 2023, Belgrade, Serbia
T1  - A novel YtnP lactonase reduces the expression of p. aeruginosa MMA83 quorum sensing andvirulence factors gene expression
EP  - 121
SP  - 121
UR  - https://hdl.handle.net/21.15107/rcub_intor_803
ER  - 

@conference{
author = "Ćurčić, Jovana and Jakovljević, Stefan and Novović, Katarina and Vasiljević, Zorica and Kojić, Milan and Jovčić, Branko and Malešević, Milka",
year = "2023",
abstract = "Introduction: Quorum quenching (QQ) isthe enzymatic degradation of cell-to-cellsignaling molecules.
In this study, the potential of the novel YtnP lactonase, the quorum quenching enzyme derived from S.
maltophilia, to reduce P. aeruginosa quorum sensing and virulence factor gene expression was investigated.
Methods: MMA83 culture (adjusted to 1.5x105 CFU/ml) was treated with recombinant YtnP lactonase
(final concentration 50 μg/ml) at 37°C for 12 hours under aeration. RNA isolation of the treated and untreated MMA83 culture was performed using the RNeasy Mini Kit (Qiagen, Germany) according to the
protocol. Quantitative reverse transcription-polymerase chain reaction (RT-qPCR), was used to analyze
the effect ofYtnP lactonase on the relative mRNA levels of the LasI/LasR, RhiI/RhiR, and PQS signaling network genes of P. aeruginosa MMA83 and virulence factor genes. The rpsL was used as an endogenous
control to normalize obtained data following the 2-ΔΔCt method.
Results: The QS genes belonging to three QS networks – LasI/LasR, RhiI/RhiR, and PQS of P. aeruginosa
MMA83 treated with YtnP lactonase were significantly downregulated. The RT -qPCR results show that
treatment with YtnP-lactonase decreased the relative mRNA levels of genes involved in the production
of elastase (lasB approximately 2-fold), alginate (algK approximately 2.2-fold), pyocyanin (phzM approximately 3.5-fold), pyoverdin (pvdS approximately 2-fold), and rhamnolipid (rhlC approximately 4-fold).
These results suggest that YtnP lactonase exerts an antivirulence effect at the transcription level.
Conclusion: YtnP lactonase, a quorum quenching (QQ) enzyme, has the potential to be used as an innovative enzyme-based antivirulence therapeutic to combat infections caused by P. aeruginosa.",
publisher = "Institute of Molecular Genetics and Genetic Engineering (IMGGE), University of Belgrade",
journal = "CoMBoS2 – the Second Congress of Molecular Biologists of Serbia, Abstract Book – Trends in Molecular Biology, Special issue 06-08 October 2023, Belgrade, Serbia",
title = "A novel YtnP lactonase reduces the expression of p. aeruginosa MMA83 quorum sensing andvirulence factors gene expression",
pages = "121-121",
url = "https://hdl.handle.net/21.15107/rcub_intor_803"
}

Ćurčić, J., Jakovljević, S., Novović, K., Vasiljević, Z., Kojić, M., Jovčić, B.,& Malešević, M.. (2023). A novel YtnP lactonase reduces the expression of p. aeruginosa MMA83 quorum sensing andvirulence factors gene expression. in CoMBoS2 – the Second Congress of Molecular Biologists of Serbia, Abstract Book – Trends in Molecular Biology, Special issue 06-08 October 2023, Belgrade, Serbia
Institute of Molecular Genetics and Genetic Engineering (IMGGE), University of Belgrade., 121-121.
https://hdl.handle.net/21.15107/rcub_intor_803

Ćurčić J, Jakovljević S, Novović K, Vasiljević Z, Kojić M, Jovčić B, Malešević M. A novel YtnP lactonase reduces the expression of p. aeruginosa MMA83 quorum sensing andvirulence factors gene expression. in CoMBoS2 – the Second Congress of Molecular Biologists of Serbia, Abstract Book – Trends in Molecular Biology, Special issue 06-08 October 2023, Belgrade, Serbia. 2023;:121-121.
https://hdl.handle.net/21.15107/rcub_intor_803 .

Ćurčić, Jovana, Jakovljević, Stefan, Novović, Katarina, Vasiljević, Zorica, Kojić, Milan, Jovčić, Branko, Malešević, Milka, "A novel YtnP lactonase reduces the expression of p. aeruginosa MMA83 quorum sensing andvirulence factors gene expression" in CoMBoS2 – the Second Congress of Molecular Biologists of Serbia, Abstract Book – Trends in Molecular Biology, Special issue 06-08 October 2023, Belgrade, Serbia (2023):121-121,
https://hdl.handle.net/21.15107/rcub_intor_803 .

TY  - CONF
AU  - Malešević, Milka
AU  - Stanisavljević, Nemanja
AU  - Rašić, Slađan
AU  - Vukotić, Goran
AU  - Gardijan, Lazar
AU  - Obradović, Mina
AU  - Kojić, Milan
PY  - 2023
UR  - http://intor.torlakinstitut.com/handle/123456789/823
AB  - Introduction: Brevibacillus laterosporus is a promising microbiological agent that can be used to prevent and control destructive diseases affecting honey bee colonies. In the presentstudy, the short-termeffect of the B. laterosporus BGSP11 bee diet on microbiota and mycobiota was investigated.Methods: The honey bee diet was supplemented with spores of B. laterosporus BGSP11 at a concentration of 1×108 CFU/mL in sucrose solution. Metabarcoding analysis of the bee microbial community profile was performed based on 16S RNA (bacteriobiota) and Internally Transcribes Spacer (ITS) region(mycobiota) obtained using MiSeq Illumina sequencing. The QIIME2 v2021.4 pipeline was used to analyze the obtained amplicon data library.Results: The results show that the BGSP11 bee diet slightly altered the bee microbiota and did not leadto potentially harmful changes in the bacterial microbiota. Moreover, it can potentially induce positivechanges, mainly reflected in the reduction of opportunistic bacteria. On the other hand, the treatmenthad a greater effect on mycobiota. However, the changesin the bee mycobiome caused by the treatmentcannot be considered a priori as beneficial or harmful,since the interaction between the bee and its mycobiome is not sufficiently studied. The observed positive changes in the bee mycobiome are mainlyreflected in the reduction of phytopathogenic fungi that may affect the organoleptic and techno-functional properties of honey.Conclusion: This pilot study suggests that the introduction of BGSP11 in beekeeping practice as a biological agent could be considered due to no harmful effects observed on the microbiota of bees.
PB  - Institute of Molecular Genetics and Genetic Engineering (IMGGE), University of Belgrade
C3  - CoMBoS2 – the Second Congress of Molecular Biologists of Serbia, Abstract Book – Trends in Molecular Biology, Special issue 06-08 October 2023, Belgrade, Serbia
T1  - Short-term effect of Brevibacillus laterosporus supplemented diet on worker honey bee microbiome
EP  - 112
SP  - 112
UR  - https://hdl.handle.net/21.15107/rcub_intor_823
ER  - 

@conference{
author = "Malešević, Milka and Stanisavljević, Nemanja and Rašić, Slađan and Vukotić, Goran and Gardijan, Lazar and Obradović, Mina and Kojić, Milan",
year = "2023",
abstract = "Introduction: Brevibacillus laterosporus is a promising microbiological agent that can be used to prevent and control destructive diseases affecting honey bee colonies. In the presentstudy, the short-termeffect of the B. laterosporus BGSP11 bee diet on microbiota and mycobiota was investigated.Methods: The honey bee diet was supplemented with spores of B. laterosporus BGSP11 at a concentration of 1×108 CFU/mL in sucrose solution. Metabarcoding analysis of the bee microbial community profile was performed based on 16S RNA (bacteriobiota) and Internally Transcribes Spacer (ITS) region(mycobiota) obtained using MiSeq Illumina sequencing. The QIIME2 v2021.4 pipeline was used to analyze the obtained amplicon data library.Results: The results show that the BGSP11 bee diet slightly altered the bee microbiota and did not leadto potentially harmful changes in the bacterial microbiota. Moreover, it can potentially induce positivechanges, mainly reflected in the reduction of opportunistic bacteria. On the other hand, the treatmenthad a greater effect on mycobiota. However, the changesin the bee mycobiome caused by the treatmentcannot be considered a priori as beneficial or harmful,since the interaction between the bee and its mycobiome is not sufficiently studied. The observed positive changes in the bee mycobiome are mainlyreflected in the reduction of phytopathogenic fungi that may affect the organoleptic and techno-functional properties of honey.Conclusion: This pilot study suggests that the introduction of BGSP11 in beekeeping practice as a biological agent could be considered due to no harmful effects observed on the microbiota of bees.",
publisher = "Institute of Molecular Genetics and Genetic Engineering (IMGGE), University of Belgrade",
journal = "CoMBoS2 – the Second Congress of Molecular Biologists of Serbia, Abstract Book – Trends in Molecular Biology, Special issue 06-08 October 2023, Belgrade, Serbia",
title = "Short-term effect of Brevibacillus laterosporus supplemented diet on worker honey bee microbiome",
pages = "112-112",
url = "https://hdl.handle.net/21.15107/rcub_intor_823"
}

Malešević, M., Stanisavljević, N., Rašić, S., Vukotić, G., Gardijan, L., Obradović, M.,& Kojić, M.. (2023). Short-term effect of Brevibacillus laterosporus supplemented diet on worker honey bee microbiome. in CoMBoS2 – the Second Congress of Molecular Biologists of Serbia, Abstract Book – Trends in Molecular Biology, Special issue 06-08 October 2023, Belgrade, Serbia
Institute of Molecular Genetics and Genetic Engineering (IMGGE), University of Belgrade., 112-112.
https://hdl.handle.net/21.15107/rcub_intor_823

Malešević M, Stanisavljević N, Rašić S, Vukotić G, Gardijan L, Obradović M, Kojić M. Short-term effect of Brevibacillus laterosporus supplemented diet on worker honey bee microbiome. in CoMBoS2 – the Second Congress of Molecular Biologists of Serbia, Abstract Book – Trends in Molecular Biology, Special issue 06-08 October 2023, Belgrade, Serbia. 2023;:112-112.
https://hdl.handle.net/21.15107/rcub_intor_823 .

Malešević, Milka, Stanisavljević, Nemanja, Rašić, Slađan, Vukotić, Goran, Gardijan, Lazar, Obradović, Mina, Kojić, Milan, "Short-term effect of Brevibacillus laterosporus supplemented diet on worker honey bee microbiome" in CoMBoS2 – the Second Congress of Molecular Biologists of Serbia, Abstract Book – Trends in Molecular Biology, Special issue 06-08 October 2023, Belgrade, Serbia (2023):112-112,
https://hdl.handle.net/21.15107/rcub_intor_823 .

TY  - JOUR
AU  - Smiljanić, Katarina
AU  - Prodić, Ivana
AU  - Trifunovic, Sara
AU  - Krstić Ristivojević, Maja
AU  - Aćimović, Milica
AU  - Stanković Jeremić, Jovana
AU  - Lončar, Biljana
AU  - Tešević, Vele
PY  - 2023
UR  - http://intor.torlakinstitut.com/handle/123456789/857
AB  - As byproducts of essential oil distillation, hydrolates are used in natural cosmetics/biomedicine due to their beneficial skin effects. However, data on their safety with relevant biological targets, such as human skin cells, are scarce. Therefore, we have tested nine hydrolates from the Lamiaceae family with skin fibroblasts that are responsible for extracellular collagenous matrix builds. Thyme, oregano, and winter savoury hydrolates showed several times higher total phenolics, which correlated strongly with their radical scavenging and antioxidative capacity; there was no correlation between their viability profiles and the reducing sugar levels. No proteins/peptides were detected. All hydrolates appeared safe for prolonged skin exposure except for 10-fold diluted lavender, which showed cytotoxicity (~20%), as well as rosemary and lavandin (~10%) using viability, DNA synthesis, and cell count testing. Clary sage, oregano, lemon balm, and thyme hydrolates (10-fold diluted) increased fibroblast viability and/or proliferation by 10–30% compared with the control, while their viability remained unaffected by Mentha and winter savoury. In line with the STITCH database, increased viability could be attributed to thymol presence in oregano and thyme hydrolates in lemon balm, which is most likely attributable to neral and geranial. The proliferative effect of clary sage could be supported by alpha-terpineol, not linalool. The major volatile organic compounds (VOCs) associated with cytotoxic effects on fibroblasts were borneol, 1,8-cineole, and terpinene-4-ol. Further research with pure compounds is warranted to confirm the roles of VOCs in the observed effects that are relevant to cosmetic and wound healing aspects.
PB  - MDPI
T2  - Antioxidants
T2  - Antioxidants
T1  - Multistep Approach Points to Compounds Responsible for the Biological Activity and Safety of Hydrolates from Nine Lamiaceae Medicinal Plants on Human Skin Fibroblasts
IS  - 11
SP  - 1988
VL  - 12
DO  - 10.3390/antiox12111988
ER  - 

@article{
author = "Smiljanić, Katarina and Prodić, Ivana and Trifunovic, Sara and Krstić Ristivojević, Maja and Aćimović, Milica and Stanković Jeremić, Jovana and Lončar, Biljana and Tešević, Vele",
year = "2023",
abstract = "As byproducts of essential oil distillation, hydrolates are used in natural cosmetics/biomedicine due to their beneficial skin effects. However, data on their safety with relevant biological targets, such as human skin cells, are scarce. Therefore, we have tested nine hydrolates from the Lamiaceae family with skin fibroblasts that are responsible for extracellular collagenous matrix builds. Thyme, oregano, and winter savoury hydrolates showed several times higher total phenolics, which correlated strongly with their radical scavenging and antioxidative capacity; there was no correlation between their viability profiles and the reducing sugar levels. No proteins/peptides were detected. All hydrolates appeared safe for prolonged skin exposure except for 10-fold diluted lavender, which showed cytotoxicity (~20%), as well as rosemary and lavandin (~10%) using viability, DNA synthesis, and cell count testing. Clary sage, oregano, lemon balm, and thyme hydrolates (10-fold diluted) increased fibroblast viability and/or proliferation by 10–30% compared with the control, while their viability remained unaffected by Mentha and winter savoury. In line with the STITCH database, increased viability could be attributed to thymol presence in oregano and thyme hydrolates in lemon balm, which is most likely attributable to neral and geranial. The proliferative effect of clary sage could be supported by alpha-terpineol, not linalool. The major volatile organic compounds (VOCs) associated with cytotoxic effects on fibroblasts were borneol, 1,8-cineole, and terpinene-4-ol. Further research with pure compounds is warranted to confirm the roles of VOCs in the observed effects that are relevant to cosmetic and wound healing aspects.",
publisher = "MDPI",
journal = "Antioxidants, Antioxidants",
title = "Multistep Approach Points to Compounds Responsible for the Biological Activity and Safety of Hydrolates from Nine Lamiaceae Medicinal Plants on Human Skin Fibroblasts",
number = "11",
pages = "1988",
volume = "12",
doi = "10.3390/antiox12111988"
}

Smiljanić, K., Prodić, I., Trifunovic, S., Krstić Ristivojević, M., Aćimović, M., Stanković Jeremić, J., Lončar, B.,& Tešević, V.. (2023). Multistep Approach Points to Compounds Responsible for the Biological Activity and Safety of Hydrolates from Nine Lamiaceae Medicinal Plants on Human Skin Fibroblasts. in Antioxidants
MDPI., 12(11), 1988.
https://doi.org/10.3390/antiox12111988

Smiljanić K, Prodić I, Trifunovic S, Krstić Ristivojević M, Aćimović M, Stanković Jeremić J, Lončar B, Tešević V. Multistep Approach Points to Compounds Responsible for the Biological Activity and Safety of Hydrolates from Nine Lamiaceae Medicinal Plants on Human Skin Fibroblasts. in Antioxidants. 2023;12(11):1988.
doi:10.3390/antiox12111988 .

Smiljanić, Katarina, Prodić, Ivana, Trifunovic, Sara, Krstić Ristivojević, Maja, Aćimović, Milica, Stanković Jeremić, Jovana, Lončar, Biljana, Tešević, Vele, "Multistep Approach Points to Compounds Responsible for the Biological Activity and Safety of Hydrolates from Nine Lamiaceae Medicinal Plants on Human Skin Fibroblasts" in Antioxidants, 12, no. 11 (2023):1988,
https://doi.org/10.3390/antiox12111988 . .

TY  - CONF
AU  - Pantelić, Ana
AU  - Prodić, Ivana
AU  - Milić, Dejana
AU  - Senćanski, Milan
AU  - Vidović, Marija
PY  - 2023
UR  - http://intor.torlakinstitut.com/handle/123456789/824
AB  - Introduction: Resurrection plants (such as Ramonda serbica) can survive a long desiccation period andfully resume their metabolism upon watering. The hallmark of desiccation tolerance (DT) is the accumulation of protective, intrinsically disordered proteins(IDPs), called late embryogenesis abundant proteins (LEAPs). Although their high structural plasticity allows them to interact with various partners, nospecific cellular targets of LEAPs have been identified so far.Methods: To identify LEAPsinvolved in DT, differential transcriptome and proteome analyses of hydratedand desiccated R. serbica leaves were performed. The identified LEAPs were structurally characterisedand classified. To evaluate theirstructural propertiesin vitro and their potential functionsin vivo, the representative RsLEA proteins, were produced in Escherichia coli using recombinant DNA technology.Results: Members of the LEA4 protein family represent the majority of desiccation-inducible LEAPs. Even17 proteins belonging to the LEA4 protein family group were induced by desiccation. They show high disorder propensity (82 %), and at the same time, a high tendency to form α-helices (>80%). Although recombinant DNA technology has traditionally been used to overexpress and purify various globularproteins, the production of IDPsis challenging due to their high susceptibility to proteolytic cleavage andaggregation. Nevertheless, the representative LEAPs containing hexa-Histagsimmunoglobulin G-binding protein and a proteolytic TEV site were produced, purified and cleaved by TEV protease.Conclusion: The combination of in silico and in vitro results will be crucial for the identification of endogenous partners of LEAPs, providing further insight into their role in DT.
PB  - Institute of Molecular Genetics and Genetic Engineering (IMGGE), University of Belgrade
C3  - CoMBoS2 – the Second Congress of Molecular Biologists of Serbia, Abstract Book – Trends in Molecular Biology, Special issue 06-08 October 2023, Belgrade, Serbia
T1  - Drying without dying: revealing the role of late embryogenesis abundant proteins during desiccation in Ramonda serbica
EP  - 110
SP  - 110
UR  - https://hdl.handle.net/21.15107/rcub_intor_824
ER  - 

@conference{
author = "Pantelić, Ana and Prodić, Ivana and Milić, Dejana and Senćanski, Milan and Vidović, Marija",
year = "2023",
abstract = "Introduction: Resurrection plants (such as Ramonda serbica) can survive a long desiccation period andfully resume their metabolism upon watering. The hallmark of desiccation tolerance (DT) is the accumulation of protective, intrinsically disordered proteins(IDPs), called late embryogenesis abundant proteins (LEAPs). Although their high structural plasticity allows them to interact with various partners, nospecific cellular targets of LEAPs have been identified so far.Methods: To identify LEAPsinvolved in DT, differential transcriptome and proteome analyses of hydratedand desiccated R. serbica leaves were performed. The identified LEAPs were structurally characterisedand classified. To evaluate theirstructural propertiesin vitro and their potential functionsin vivo, the representative RsLEA proteins, were produced in Escherichia coli using recombinant DNA technology.Results: Members of the LEA4 protein family represent the majority of desiccation-inducible LEAPs. Even17 proteins belonging to the LEA4 protein family group were induced by desiccation. They show high disorder propensity (82 %), and at the same time, a high tendency to form α-helices (>80%). Although recombinant DNA technology has traditionally been used to overexpress and purify various globularproteins, the production of IDPsis challenging due to their high susceptibility to proteolytic cleavage andaggregation. Nevertheless, the representative LEAPs containing hexa-Histagsimmunoglobulin G-binding protein and a proteolytic TEV site were produced, purified and cleaved by TEV protease.Conclusion: The combination of in silico and in vitro results will be crucial for the identification of endogenous partners of LEAPs, providing further insight into their role in DT.",
publisher = "Institute of Molecular Genetics and Genetic Engineering (IMGGE), University of Belgrade",
journal = "CoMBoS2 – the Second Congress of Molecular Biologists of Serbia, Abstract Book – Trends in Molecular Biology, Special issue 06-08 October 2023, Belgrade, Serbia",
title = "Drying without dying: revealing the role of late embryogenesis abundant proteins during desiccation in Ramonda serbica",
pages = "110-110",
url = "https://hdl.handle.net/21.15107/rcub_intor_824"
}

Pantelić, A., Prodić, I., Milić, D., Senćanski, M.,& Vidović, M.. (2023). Drying without dying: revealing the role of late embryogenesis abundant proteins during desiccation in Ramonda serbica. in CoMBoS2 – the Second Congress of Molecular Biologists of Serbia, Abstract Book – Trends in Molecular Biology, Special issue 06-08 October 2023, Belgrade, Serbia
Institute of Molecular Genetics and Genetic Engineering (IMGGE), University of Belgrade., 110-110.
https://hdl.handle.net/21.15107/rcub_intor_824

Pantelić A, Prodić I, Milić D, Senćanski M, Vidović M. Drying without dying: revealing the role of late embryogenesis abundant proteins during desiccation in Ramonda serbica. in CoMBoS2 – the Second Congress of Molecular Biologists of Serbia, Abstract Book – Trends in Molecular Biology, Special issue 06-08 October 2023, Belgrade, Serbia. 2023;:110-110.
https://hdl.handle.net/21.15107/rcub_intor_824 .

Pantelić, Ana, Prodić, Ivana, Milić, Dejana, Senćanski, Milan, Vidović, Marija, "Drying without dying: revealing the role of late embryogenesis abundant proteins during desiccation in Ramonda serbica" in CoMBoS2 – the Second Congress of Molecular Biologists of Serbia, Abstract Book – Trends in Molecular Biology, Special issue 06-08 October 2023, Belgrade, Serbia (2023):110-110,
https://hdl.handle.net/21.15107/rcub_intor_824 .

TY  - CONF
AU  - Novković, Mirjana
AU  - Vasić, Marko
AU  - Jasnić, Jovana
AU  - Milošević, Emilija
AU  - Milovanović, Mina
AU  - Savić, Slobodan
AU  - Kojić, Snežana
PY  - 2023
UR  - https://imagine.imgge.bg.ac.rs/handle/123456789/2114
UR  - http://intor.torlakinstitut.com/handle/123456789/806
AB  - Introduction: Ankyrin Repeat Domain 2 (ANKRD2) is expressed in skeletal muscle, where plays a role inmuscle development, differentiation and adaptation to stress. Human skeletal muscle consists of threemajor fiber types: type 1 (slow-twitch, oxidative), type 2A (fast-twitch, oxidative) and type 2X (fast-twitch,glycolytic). ANKRD2 is reported to be primarily expressed in type 1 myofibers. However, recent findingson human single myofibers and our study of chicken muscles have shown that this protein may also beexpressed in type 2A fibers. Hence, our objective was to examine whether ANKRD2 is present in humanfast, type 2A muscle fibers using immunohistochemistry.Methods: Samples of large leg musclessoleus, gastrocnemius, vastusintermedius and vastuslateralis wereobtained from human cadaveric tissue. Serial cryosections were independently stained with anti-ANKRD2and antibodies for different myosin heavy chain isoforms (6H1 for type 2X, BF35 for type 1 and 2A, antiMHCs for type 1 and anti-MHCf for type 2A and 2X fibers). Immunostained tissues were analyzed by fluorescent microscopy.Results: In addition to slow, type 1, ANKRD2 wasfound expressed in fast, type 2A myofibers, which bothhave oxidative metabolism. Further, we did not observe ANDRD2 expression in glycolytic, type 2Xmyiofibers. This pattern of ANKRD2 expression was consistent across all examined muscles.Conclusion: Our resultsimplicate that the regulatory mechanism of ANKRD2 expression in human skeletal muscle is associated with oxidative metabolism, rather than muscle contraction speed.
PB  - Institute of Molecular Genetics and Genetic Engineering (IMGGE), University of Belgrade
C3  - CoMBoS2 – the Second Congress of Molecular Biologists of Serbia, Abstract Book – Trends in Molecular Biology, Special issue 06-08 October 2023, Belgrade, Serbia
T1  - Determination of muscle fiber types expressing ANKRD2
EP  - 155
SP  - 155
UR  - https://hdl.handle.net/21.15107/rcub_intor_806
ER  - 

@conference{
author = "Novković, Mirjana and Vasić, Marko and Jasnić, Jovana and Milošević, Emilija and Milovanović, Mina and Savić, Slobodan and Kojić, Snežana",
year = "2023",
abstract = "Introduction: Ankyrin Repeat Domain 2 (ANKRD2) is expressed in skeletal muscle, where plays a role inmuscle development, differentiation and adaptation to stress. Human skeletal muscle consists of threemajor fiber types: type 1 (slow-twitch, oxidative), type 2A (fast-twitch, oxidative) and type 2X (fast-twitch,glycolytic). ANKRD2 is reported to be primarily expressed in type 1 myofibers. However, recent findingson human single myofibers and our study of chicken muscles have shown that this protein may also beexpressed in type 2A fibers. Hence, our objective was to examine whether ANKRD2 is present in humanfast, type 2A muscle fibers using immunohistochemistry.Methods: Samples of large leg musclessoleus, gastrocnemius, vastusintermedius and vastuslateralis wereobtained from human cadaveric tissue. Serial cryosections were independently stained with anti-ANKRD2and antibodies for different myosin heavy chain isoforms (6H1 for type 2X, BF35 for type 1 and 2A, antiMHCs for type 1 and anti-MHCf for type 2A and 2X fibers). Immunostained tissues were analyzed by fluorescent microscopy.Results: In addition to slow, type 1, ANKRD2 wasfound expressed in fast, type 2A myofibers, which bothhave oxidative metabolism. Further, we did not observe ANDRD2 expression in glycolytic, type 2Xmyiofibers. This pattern of ANKRD2 expression was consistent across all examined muscles.Conclusion: Our resultsimplicate that the regulatory mechanism of ANKRD2 expression in human skeletal muscle is associated with oxidative metabolism, rather than muscle contraction speed.",
publisher = "Institute of Molecular Genetics and Genetic Engineering (IMGGE), University of Belgrade",
journal = "CoMBoS2 – the Second Congress of Molecular Biologists of Serbia, Abstract Book – Trends in Molecular Biology, Special issue 06-08 October 2023, Belgrade, Serbia",
title = "Determination of muscle fiber types expressing ANKRD2",
pages = "155-155",
url = "https://hdl.handle.net/21.15107/rcub_intor_806"
}

Novković, M., Vasić, M., Jasnić, J., Milošević, E., Milovanović, M., Savić, S.,& Kojić, S.. (2023). Determination of muscle fiber types expressing ANKRD2. in CoMBoS2 – the Second Congress of Molecular Biologists of Serbia, Abstract Book – Trends in Molecular Biology, Special issue 06-08 October 2023, Belgrade, Serbia
Institute of Molecular Genetics and Genetic Engineering (IMGGE), University of Belgrade., 155-155.
https://hdl.handle.net/21.15107/rcub_intor_806

Novković M, Vasić M, Jasnić J, Milošević E, Milovanović M, Savić S, Kojić S. Determination of muscle fiber types expressing ANKRD2. in CoMBoS2 – the Second Congress of Molecular Biologists of Serbia, Abstract Book – Trends in Molecular Biology, Special issue 06-08 October 2023, Belgrade, Serbia. 2023;:155-155.
https://hdl.handle.net/21.15107/rcub_intor_806 .

Novković, Mirjana, Vasić, Marko, Jasnić, Jovana, Milošević, Emilija, Milovanović, Mina, Savić, Slobodan, Kojić, Snežana, "Determination of muscle fiber types expressing ANKRD2" in CoMBoS2 – the Second Congress of Molecular Biologists of Serbia, Abstract Book – Trends in Molecular Biology, Special issue 06-08 October 2023, Belgrade, Serbia (2023):155-155,
https://hdl.handle.net/21.15107/rcub_intor_806 .

TY  - JOUR
AU  - Prodić, Ivana
AU  - Krstić-Ristivojević, Maja
AU  - Smiljanić, Katarina
PY  - 2023
UR  - http://intor.torlakinstitut.com/handle/123456789/756
AB  - Thermally processed peanuts are ideal plant models for studying the relationship between allergenicity and antioxidant capacity of protein-rich foods, besides lipids, carbohydrates and phytochemicals. Peanut is highly praised in the human diet; however, it is rich in allergens (>75% of total proteins). One-third of peanut allergens belong to the products of genes responsible for the defence of plants against stress conditions. The proximate composition of major peanut macromolecules and polyphenols is reviewed, focusing on the identity and relative abundance of all peanut proteins derived from recent proteomic studies. The importance of thermal processing, gastrointestinal digestion (performed by INFOGEST protocol) and their influence on allergenicity and antioxidant properties of protein-rich plant food matrices is elaborated. Antioxidant properties of bioactive peptides from nuts were also considered. Moreover, there are no studies dealing simultaneously with the antioxidant and allergenic properties of protein- and polyphenol-rich foods, considering all the molecules that can significantly contribute to the antioxidant capacity during and after gastrointestinal digestion. In summary, proteins and carbohydrates are underappreciated sources of antioxidant power released during the gastrointestinal digestion of protein-rich plant foods, and it is crucial to decipher their antioxidant contribution in addition to polyphenols and vitamins before and after gastrointestinal digestion.
PB  - MDPI
T2  - Antioxidants
T1  - Antioxidant Properties of Protein-Rich Plant Foods in Gastrointestinal Digestion-Peanuts as Our Antioxidant Friend or Foe in Allergies
IS  - 4
SP  - 886
VL  - 12
DO  - 10.3390/antiox12040886
ER  - 

@article{
author = "Prodić, Ivana and Krstić-Ristivojević, Maja and Smiljanić, Katarina",
year = "2023",
abstract = "Thermally processed peanuts are ideal plant models for studying the relationship between allergenicity and antioxidant capacity of protein-rich foods, besides lipids, carbohydrates and phytochemicals. Peanut is highly praised in the human diet; however, it is rich in allergens (>75% of total proteins). One-third of peanut allergens belong to the products of genes responsible for the defence of plants against stress conditions. The proximate composition of major peanut macromolecules and polyphenols is reviewed, focusing on the identity and relative abundance of all peanut proteins derived from recent proteomic studies. The importance of thermal processing, gastrointestinal digestion (performed by INFOGEST protocol) and their influence on allergenicity and antioxidant properties of protein-rich plant food matrices is elaborated. Antioxidant properties of bioactive peptides from nuts were also considered. Moreover, there are no studies dealing simultaneously with the antioxidant and allergenic properties of protein- and polyphenol-rich foods, considering all the molecules that can significantly contribute to the antioxidant capacity during and after gastrointestinal digestion. In summary, proteins and carbohydrates are underappreciated sources of antioxidant power released during the gastrointestinal digestion of protein-rich plant foods, and it is crucial to decipher their antioxidant contribution in addition to polyphenols and vitamins before and after gastrointestinal digestion.",
publisher = "MDPI",
journal = "Antioxidants",
title = "Antioxidant Properties of Protein-Rich Plant Foods in Gastrointestinal Digestion-Peanuts as Our Antioxidant Friend or Foe in Allergies",
number = "4",
pages = "886",
volume = "12",
doi = "10.3390/antiox12040886"
}

Prodić, I., Krstić-Ristivojević, M.,& Smiljanić, K.. (2023). Antioxidant Properties of Protein-Rich Plant Foods in Gastrointestinal Digestion-Peanuts as Our Antioxidant Friend or Foe in Allergies. in Antioxidants
MDPI., 12(4), 886.
https://doi.org/10.3390/antiox12040886

Prodić I, Krstić-Ristivojević M, Smiljanić K. Antioxidant Properties of Protein-Rich Plant Foods in Gastrointestinal Digestion-Peanuts as Our Antioxidant Friend or Foe in Allergies. in Antioxidants. 2023;12(4):886.
doi:10.3390/antiox12040886 .

Prodić, Ivana, Krstić-Ristivojević, Maja, Smiljanić, Katarina, "Antioxidant Properties of Protein-Rich Plant Foods in Gastrointestinal Digestion-Peanuts as Our Antioxidant Friend or Foe in Allergies" in Antioxidants, 12, no. 4 (2023):886,
https://doi.org/10.3390/antiox12040886 . .

TY  - JOUR
AU  - Malešević, Milka
AU  - Gardijan, Lazar
AU  - Miljković, Marija
AU  - O'Connor, Paula M
AU  - Mirković, Nemanja
AU  - Jovčić, Branko
AU  - Cotter, Paul D
AU  - Jovanovic, Goran
AU  - Kojić, Milan
PY  - 2023
UR  - https://imagine.imgge.bg.ac.rs/handle/123456789/1828
UR  - http://intor.torlakinstitut.com/handle/123456789/740
AB  - Lactic acid bacterium Lactococcus lactis BGBU1-4 produces 43 amino acids (aa) long bacteriocin, lactolisterin BU (LBU), a 5.161 kDa peptide with potent antibacterial activity against many Gram-positive pathogens. In addition, BGBU1-4 produces an additional unknown product of 3.642 kDa with antibacterial activity. Here, we determined that the significant amount of naturally produced LBU breaks down to create a 3.642 kDa truncated form of LBU bacteriocin consisting of 31 N-terminal aa (LBU1-31) that exhibits 12.5% the antibacterial activity of the full-length LBU. We showed that chemically synthesized LBU is stable and 50% less active than native LBU, and so we used the synthetic peptides of LBU and its variants to further study their activities and antibacterial potential. Deletion analysis of LBU revealed that the 24 N-terminal aa of LBU (LBU1-24) are responsible for antibacterial activity, while downstream aa (25–43) determine the species-specific effectiveness of LBU. Although LBU1-31 contains aa 1–24, the truncation at position 31 is predicted to change the structure within aa 15–31 and might impact on antibacterial activity. Intriguingly, whole genome sequencing and genome mining established that BGBU1-4 is abundant in genes that encode potential antibacterials, but produces LBU and its breakdown product LBU1-31 exclusively.
T2  - Letters in Applied Microbiology
T2  - Letters in Applied MicrobiologyLetters in Applied Microbiology
T1  - Exploring the antibacterial potential of Lactococcus lactis subsp. lactis bv. diacetylactis BGBU1-4 by genome mining, bacteriocin gene overexpression, and chemical protein synthesis of lactolisterin BU variants
IS  - 2
SP  - ovad004
VL  - 76
DO  - 10.1093/lambio/ovad004
ER  - 

@article{
author = "Malešević, Milka and Gardijan, Lazar and Miljković, Marija and O'Connor, Paula M and Mirković, Nemanja and Jovčić, Branko and Cotter, Paul D and Jovanovic, Goran and Kojić, Milan",
year = "2023",
abstract = "Lactic acid bacterium Lactococcus lactis BGBU1-4 produces 43 amino acids (aa) long bacteriocin, lactolisterin BU (LBU), a 5.161 kDa peptide with potent antibacterial activity against many Gram-positive pathogens. In addition, BGBU1-4 produces an additional unknown product of 3.642 kDa with antibacterial activity. Here, we determined that the significant amount of naturally produced LBU breaks down to create a 3.642 kDa truncated form of LBU bacteriocin consisting of 31 N-terminal aa (LBU1-31) that exhibits 12.5% the antibacterial activity of the full-length LBU. We showed that chemically synthesized LBU is stable and 50% less active than native LBU, and so we used the synthetic peptides of LBU and its variants to further study their activities and antibacterial potential. Deletion analysis of LBU revealed that the 24 N-terminal aa of LBU (LBU1-24) are responsible for antibacterial activity, while downstream aa (25–43) determine the species-specific effectiveness of LBU. Although LBU1-31 contains aa 1–24, the truncation at position 31 is predicted to change the structure within aa 15–31 and might impact on antibacterial activity. Intriguingly, whole genome sequencing and genome mining established that BGBU1-4 is abundant in genes that encode potential antibacterials, but produces LBU and its breakdown product LBU1-31 exclusively.",
journal = "Letters in Applied Microbiology, Letters in Applied MicrobiologyLetters in Applied Microbiology",
title = "Exploring the antibacterial potential of Lactococcus lactis subsp. lactis bv. diacetylactis BGBU1-4 by genome mining, bacteriocin gene overexpression, and chemical protein synthesis of lactolisterin BU variants",
number = "2",
pages = "ovad004",
volume = "76",
doi = "10.1093/lambio/ovad004"
}

Malešević, M., Gardijan, L., Miljković, M., O'Connor, P. M., Mirković, N., Jovčić, B., Cotter, P. D., Jovanovic, G.,& Kojić, M.. (2023). Exploring the antibacterial potential of Lactococcus lactis subsp. lactis bv. diacetylactis BGBU1-4 by genome mining, bacteriocin gene overexpression, and chemical protein synthesis of lactolisterin BU variants. in Letters in Applied Microbiology, 76(2), ovad004.
https://doi.org/10.1093/lambio/ovad004

Malešević M, Gardijan L, Miljković M, O'Connor PM, Mirković N, Jovčić B, Cotter PD, Jovanovic G, Kojić M. Exploring the antibacterial potential of Lactococcus lactis subsp. lactis bv. diacetylactis BGBU1-4 by genome mining, bacteriocin gene overexpression, and chemical protein synthesis of lactolisterin BU variants. in Letters in Applied Microbiology. 2023;76(2):ovad004.
doi:10.1093/lambio/ovad004 .

Malešević, Milka, Gardijan, Lazar, Miljković, Marija, O'Connor, Paula M, Mirković, Nemanja, Jovčić, Branko, Cotter, Paul D, Jovanovic, Goran, Kojić, Milan, "Exploring the antibacterial potential of Lactococcus lactis subsp. lactis bv. diacetylactis BGBU1-4 by genome mining, bacteriocin gene overexpression, and chemical protein synthesis of lactolisterin BU variants" in Letters in Applied Microbiology, 76, no. 2 (2023):ovad004,
https://doi.org/10.1093/lambio/ovad004 . .

TY  - JOUR
AU  - Šokarda Slavić, Marinela
AU  - Kojić, Milan
AU  - Margetić, Aleksandra
AU  - Stanisavljević, Nemanja
AU  - Gardijan, Lazar
AU  - Božić, Nataša
AU  - Vujčić, Zoran
PY  - 2023
UR  - http://intor.torlakinstitut.com/handle/123456789/634
AB  - α-Amylase from the thermophilic bacterial strain Anoxybacillus vranjensis ST4 (AVA) was cloned into the pMALc5HisEk expression vector and successfully expressed and purified from the Escherichia coli ER2523 host strain. AVA belongs to the GH13_5 subfamily of glycoside hydrolases and has 7 conserved sequence regions (CSRs) distributed in three distinct domains (A, B, C). In addition, there is a starch binding domain (SBD) from the CBM20 family of carbohydrate binding modules (CBMs). AVA is a monomer of 66 kDa that achieves maximum activity at 60–80 °C and is active and stable over a wide pH range (4.0–9.0). AVA retained 50 % of its activity after 31 h of incubation at 60 °C and was resistant to a large number of denaturing agents. It hydrolyzed starch granules very efficiently, releasing maltose, maltotriose and maltopentaose as the main products. The hydrolysis rates of raw corn, wheat, horseradish, and potato starch, at a concentration of 10 %, were 87.8, 85.9, 93.0, and 58 %, respectively, at pH 8.5 over a 3 h period. This study showed that the high level of expression as well as the properties of this highly stable and versatile enzyme show all the prerequisites for successful application in industry.
PB  - Elsevier
T2  - International Journal of Biological Macromolecules
T1  - Highly stable and versatile α-amylase from Anoxybacillus vranjensis ST4 suitable for various applications
SP  - 126055
VL  - 249
DO  - 10.1016/j.ijbiomac.2023.126055
ER  - 

@article{
author = "Šokarda Slavić, Marinela and Kojić, Milan and Margetić, Aleksandra and Stanisavljević, Nemanja and Gardijan, Lazar and Božić, Nataša and Vujčić, Zoran",
year = "2023",
abstract = "α-Amylase from the thermophilic bacterial strain Anoxybacillus vranjensis ST4 (AVA) was cloned into the pMALc5HisEk expression vector and successfully expressed and purified from the Escherichia coli ER2523 host strain. AVA belongs to the GH13_5 subfamily of glycoside hydrolases and has 7 conserved sequence regions (CSRs) distributed in three distinct domains (A, B, C). In addition, there is a starch binding domain (SBD) from the CBM20 family of carbohydrate binding modules (CBMs). AVA is a monomer of 66 kDa that achieves maximum activity at 60–80 °C and is active and stable over a wide pH range (4.0–9.0). AVA retained 50 % of its activity after 31 h of incubation at 60 °C and was resistant to a large number of denaturing agents. It hydrolyzed starch granules very efficiently, releasing maltose, maltotriose and maltopentaose as the main products. The hydrolysis rates of raw corn, wheat, horseradish, and potato starch, at a concentration of 10 %, were 87.8, 85.9, 93.0, and 58 %, respectively, at pH 8.5 over a 3 h period. This study showed that the high level of expression as well as the properties of this highly stable and versatile enzyme show all the prerequisites for successful application in industry.",
publisher = "Elsevier",
journal = "International Journal of Biological Macromolecules",
title = "Highly stable and versatile α-amylase from Anoxybacillus vranjensis ST4 suitable for various applications",
pages = "126055",
volume = "249",
doi = "10.1016/j.ijbiomac.2023.126055"
}

Šokarda Slavić, M., Kojić, M., Margetić, A., Stanisavljević, N., Gardijan, L., Božić, N.,& Vujčić, Z.. (2023). Highly stable and versatile α-amylase from Anoxybacillus vranjensis ST4 suitable for various applications. in International Journal of Biological Macromolecules
Elsevier., 249, 126055.
https://doi.org/10.1016/j.ijbiomac.2023.126055

Šokarda Slavić M, Kojić M, Margetić A, Stanisavljević N, Gardijan L, Božić N, Vujčić Z. Highly stable and versatile α-amylase from Anoxybacillus vranjensis ST4 suitable for various applications. in International Journal of Biological Macromolecules. 2023;249:126055.
doi:10.1016/j.ijbiomac.2023.126055 .

Šokarda Slavić, Marinela, Kojić, Milan, Margetić, Aleksandra, Stanisavljević, Nemanja, Gardijan, Lazar, Božić, Nataša, Vujčić, Zoran, "Highly stable and versatile α-amylase from Anoxybacillus vranjensis ST4 suitable for various applications" in International Journal of Biological Macromolecules, 249 (2023):126055,
https://doi.org/10.1016/j.ijbiomac.2023.126055 . .

TY  - JOUR
AU  - Trifunović, Sara
AU  - Smiljanić, Katarina
AU  - Sickmann, Albert
AU  - Solari, Fiorella Andrea
AU  - Kolarević, Stoimir
AU  - Divac Rankov, Aleksandra
AU  - Ljujic, Mila
PY  - 2022
UR  - http://intor.torlakinstitut.com/handle/123456789/781
AB  - Background: Although still considered a safer alternative to classical cigarettes, growing body of work points toharmful effects of electronic cigarettes (e-cigarettes) affecting a range of cellular processes. The biological effect ofe-cigarettes needs to be investigated in more detail considering their widespread use.Methods: In this study, we treated V79 lung fibroblasts with sub-cytotoxic concentration of e-cigarette liquids, withand without nicotine. Mutagenicity was evaluated by HPRT assay, genotoxicity by comet assay and the effect on cel-lular communication by metabolic cooperation assay. Additionally, comprehensive proteome analysis was performedvia high resolution, parallel accumulation serial fragmentation-PASEF mass spectrometry.Results: E-cigarette liquid concentration used in this study showed no mutagenic or genotoxic effect, however itnegatively impacted metabolic cooperation between V79 cells. Both e-cigarette liquids induced significant depletionin total number of proteins and impairment of mitochondrial function in treated cells. The focal adhesion proteinswere upregulated, which is in accordance with the results of metabolic cooperation assay. Increased presence of post-translational modifications (PTMs), including carbonylation and direct oxidative modifications, was observed. Data areavailable via ProteomeXchange with identifier PXD032071.Conclusions: Our study revealed impairment of metabolic cooperation as well as significant proteome and PTMsalterations in V79 cells treated with e-cigarette liquid warranting future studies on e-cigarettes health impact.
PB  - BMC Springer Nature
T2  - Respiratory Research
T1  - Electronic cigarette liquids impair metabolic cooperation and alter proteomic profiles in V79 cells
IS  - 191
VL  - 23
DO  - 10.1186/s12931-022-02102-w
ER  - 

@article{
author = "Trifunović, Sara and Smiljanić, Katarina and Sickmann, Albert and Solari, Fiorella Andrea and Kolarević, Stoimir and Divac Rankov, Aleksandra and Ljujic, Mila",
year = "2022",
abstract = "Background: Although still considered a safer alternative to classical cigarettes, growing body of work points toharmful effects of electronic cigarettes (e-cigarettes) affecting a range of cellular processes. The biological effect ofe-cigarettes needs to be investigated in more detail considering their widespread use.Methods: In this study, we treated V79 lung fibroblasts with sub-cytotoxic concentration of e-cigarette liquids, withand without nicotine. Mutagenicity was evaluated by HPRT assay, genotoxicity by comet assay and the effect on cel-lular communication by metabolic cooperation assay. Additionally, comprehensive proteome analysis was performedvia high resolution, parallel accumulation serial fragmentation-PASEF mass spectrometry.Results: E-cigarette liquid concentration used in this study showed no mutagenic or genotoxic effect, however itnegatively impacted metabolic cooperation between V79 cells. Both e-cigarette liquids induced significant depletionin total number of proteins and impairment of mitochondrial function in treated cells. The focal adhesion proteinswere upregulated, which is in accordance with the results of metabolic cooperation assay. Increased presence of post-translational modifications (PTMs), including carbonylation and direct oxidative modifications, was observed. Data areavailable via ProteomeXchange with identifier PXD032071.Conclusions: Our study revealed impairment of metabolic cooperation as well as significant proteome and PTMsalterations in V79 cells treated with e-cigarette liquid warranting future studies on e-cigarettes health impact.",
publisher = "BMC Springer Nature",
journal = "Respiratory Research",
title = "Electronic cigarette liquids impair metabolic cooperation and alter proteomic profiles in V79 cells",
number = "191",
volume = "23",
doi = "10.1186/s12931-022-02102-w"
}

Trifunović, S., Smiljanić, K., Sickmann, A., Solari, F. A., Kolarević, S., Divac Rankov, A.,& Ljujic, M.. (2022). Electronic cigarette liquids impair metabolic cooperation and alter proteomic profiles in V79 cells. in Respiratory Research
BMC Springer Nature., 23(191).
https://doi.org/10.1186/s12931-022-02102-w

Trifunović S, Smiljanić K, Sickmann A, Solari FA, Kolarević S, Divac Rankov A, Ljujic M. Electronic cigarette liquids impair metabolic cooperation and alter proteomic profiles in V79 cells. in Respiratory Research. 2022;23(191).
doi:10.1186/s12931-022-02102-w .

Trifunović, Sara, Smiljanić, Katarina, Sickmann, Albert, Solari, Fiorella Andrea, Kolarević, Stoimir, Divac Rankov, Aleksandra, Ljujic, Mila, "Electronic cigarette liquids impair metabolic cooperation and alter proteomic profiles in V79 cells" in Respiratory Research, 23, no. 191 (2022),
https://doi.org/10.1186/s12931-022-02102-w . .

TY  - CONF
AU  - Ljujic, Mila
AU  - Trifunović, Sara
AU  - Smiljanić, Katarina
AU  - Solari, Fiorella Andrea
AU  - Sickmann, Albert
AU  - Divac Rankov, Aleksandra
PY  - 2022
UR  - http://intor.torlakinstitut.com/handle/123456789/782
AB  - The COVID-19 pandemic caused by the SARS-CoV2 virus poses a global health threat with over 5 million deaths recorded. There is little understanding regarding SARS-CoV2 pathogenesis in the human airways and disease severity increases with age. Neutrophils are white blood cells found in large numbers in the airways of the lungs in severe COVID-19 patients. It is not known whether this influx of neutrophils into the airway has a protective or detrimental effect. We aim to understand the role of neutrophils during COVID-19 pathology, using an experimental infection model of the airway epithelium from the eldelry and children. To do this, we collect nasal airway cells from healthy elderly and children and grow them at air-liquid interface. Once differentiation and ciliation of these cells is reached, we infect the cells with SARS-CoV2 virus and allow neutrophils to migrate from the basolateral (blood) to the apical (air) side of the epithelium, similar to a physiological airway. Using flow cytometric analyses, we measure the expression of activation markers and the number of neutrophils that migrate across the epithelium of different ages in response to SARS-CoV2 infection. Preliminary work shows less viable neutrophils recovered from the elderly epithelium, more activated neutrophils when migrating through the elderly epithelium, as well as increased numbers of neutrophils remaining on the basolateral (blood) side of the elderly epithelium. These findings point to an inflammatory neutrophil phenotype influenced by the damaged elderly epithelium and supports the hypothesis that neutrophils are responsible for the severity of disease.
PB  - European Respiraotory Society (ERS)
C3  - European Respiratory Journal
T1  - Electronic cigarette liquids impair protein synthesis and alter proteomic profiles in V79 cells
IS  - 66
SP  - 506
VL  - 60
DO  - 10.1183/13993003.congress-2022.506
ER  - 

@conference{
author = "Ljujic, Mila and Trifunović, Sara and Smiljanić, Katarina and Solari, Fiorella Andrea and Sickmann, Albert and Divac Rankov, Aleksandra",
year = "2022",
abstract = "The COVID-19 pandemic caused by the SARS-CoV2 virus poses a global health threat with over 5 million deaths recorded. There is little understanding regarding SARS-CoV2 pathogenesis in the human airways and disease severity increases with age. Neutrophils are white blood cells found in large numbers in the airways of the lungs in severe COVID-19 patients. It is not known whether this influx of neutrophils into the airway has a protective or detrimental effect. We aim to understand the role of neutrophils during COVID-19 pathology, using an experimental infection model of the airway epithelium from the eldelry and children. To do this, we collect nasal airway cells from healthy elderly and children and grow them at air-liquid interface. Once differentiation and ciliation of these cells is reached, we infect the cells with SARS-CoV2 virus and allow neutrophils to migrate from the basolateral (blood) to the apical (air) side of the epithelium, similar to a physiological airway. Using flow cytometric analyses, we measure the expression of activation markers and the number of neutrophils that migrate across the epithelium of different ages in response to SARS-CoV2 infection. Preliminary work shows less viable neutrophils recovered from the elderly epithelium, more activated neutrophils when migrating through the elderly epithelium, as well as increased numbers of neutrophils remaining on the basolateral (blood) side of the elderly epithelium. These findings point to an inflammatory neutrophil phenotype influenced by the damaged elderly epithelium and supports the hypothesis that neutrophils are responsible for the severity of disease.",
publisher = "European Respiraotory Society (ERS)",
journal = "European Respiratory Journal",
title = "Electronic cigarette liquids impair protein synthesis and alter proteomic profiles in V79 cells",
number = "66",
pages = "506",
volume = "60",
doi = "10.1183/13993003.congress-2022.506"
}

Ljujic, M., Trifunović, S., Smiljanić, K., Solari, F. A., Sickmann, A.,& Divac Rankov, A.. (2022). Electronic cigarette liquids impair protein synthesis and alter proteomic profiles in V79 cells. in European Respiratory Journal
European Respiraotory Society (ERS)., 60(66), 506.
https://doi.org/10.1183/13993003.congress-2022.506

Ljujic M, Trifunović S, Smiljanić K, Solari FA, Sickmann A, Divac Rankov A. Electronic cigarette liquids impair protein synthesis and alter proteomic profiles in V79 cells. in European Respiratory Journal. 2022;60(66):506.
doi:10.1183/13993003.congress-2022.506 .

Ljujic, Mila, Trifunović, Sara, Smiljanić, Katarina, Solari, Fiorella Andrea, Sickmann, Albert, Divac Rankov, Aleksandra, "Electronic cigarette liquids impair protein synthesis and alter proteomic profiles in V79 cells" in European Respiratory Journal, 60, no. 66 (2022):506,
https://doi.org/10.1183/13993003.congress-2022.506 . .

TY  - JOUR
AU  - Filipić, Brankica
AU  - Malešević, Milka
AU  - Vasiljević, Zorica
AU  - Novović, Katarina
AU  - Kojić, Milan
AU  - Jovčić, Branko
PY  - 2022
UR  - http://intor.torlakinstitut.com/handle/123456789/724
AB  - Trimethoprim-sulfamethoxazole (SXT) is the preferable treatment option of the infections caused by Achromobacter spp. Our study aimed to analyze the SXT resistance of 98 Achromobacter spp. isolates from pediatric patients, among which 33 isolates were SXT-resistant. The presence of intI1 was screened by PCR and genome sequence analyses. The intI1 gene was detected in 10 of SXT-resistant isolates that had shorter intI1 PCR fragments named intI1S. Structural changes in intI1S were confirmed by genome sequencing and analyses which revealed 86 amino acids deletion in IntI1S protein compared to canonical IntI1 protein. All IntI1S isolates were of non-CF origin. Pan-genome analysis of intI1S bearing A. xylosoxidans isolates comprised 9052 genes, with the core genome consisting of 5455 protein-coding genes. Results in this study indicate that IntI1S isolates were derived from clinical settings and that cystic fibrosis (CF) patients were potential reservoirs for healthcare-associated infections that occurred in non-CF patients.
PB  - Springer Science and Business Media B.V.
T2  - Folia Microbiologica
T1  - Comparative genomics of trimethoprim-sulfamethoxazole-resistant Achromobacter xylosoxidans clinical isolates from Serbia reveals shortened variant of class 1 integron integrase gene
DO  - 10.1007/s12223-022-01026-8
ER  - 

@article{
author = "Filipić, Brankica and Malešević, Milka and Vasiljević, Zorica and Novović, Katarina and Kojić, Milan and Jovčić, Branko",
year = "2022",
abstract = "Trimethoprim-sulfamethoxazole (SXT) is the preferable treatment option of the infections caused by Achromobacter spp. Our study aimed to analyze the SXT resistance of 98 Achromobacter spp. isolates from pediatric patients, among which 33 isolates were SXT-resistant. The presence of intI1 was screened by PCR and genome sequence analyses. The intI1 gene was detected in 10 of SXT-resistant isolates that had shorter intI1 PCR fragments named intI1S. Structural changes in intI1S were confirmed by genome sequencing and analyses which revealed 86 amino acids deletion in IntI1S protein compared to canonical IntI1 protein. All IntI1S isolates were of non-CF origin. Pan-genome analysis of intI1S bearing A. xylosoxidans isolates comprised 9052 genes, with the core genome consisting of 5455 protein-coding genes. Results in this study indicate that IntI1S isolates were derived from clinical settings and that cystic fibrosis (CF) patients were potential reservoirs for healthcare-associated infections that occurred in non-CF patients.",
publisher = "Springer Science and Business Media B.V.",
journal = "Folia Microbiologica",
title = "Comparative genomics of trimethoprim-sulfamethoxazole-resistant Achromobacter xylosoxidans clinical isolates from Serbia reveals shortened variant of class 1 integron integrase gene",
doi = "10.1007/s12223-022-01026-8"
}

Filipić, B., Malešević, M., Vasiljević, Z., Novović, K., Kojić, M.,& Jovčić, B.. (2022). Comparative genomics of trimethoprim-sulfamethoxazole-resistant Achromobacter xylosoxidans clinical isolates from Serbia reveals shortened variant of class 1 integron integrase gene. in Folia Microbiologica
Springer Science and Business Media B.V...
https://doi.org/10.1007/s12223-022-01026-8

Filipić B, Malešević M, Vasiljević Z, Novović K, Kojić M, Jovčić B. Comparative genomics of trimethoprim-sulfamethoxazole-resistant Achromobacter xylosoxidans clinical isolates from Serbia reveals shortened variant of class 1 integron integrase gene. in Folia Microbiologica. 2022;.
doi:10.1007/s12223-022-01026-8 .

Filipić, Brankica, Malešević, Milka, Vasiljević, Zorica, Novović, Katarina, Kojić, Milan, Jovčić, Branko, "Comparative genomics of trimethoprim-sulfamethoxazole-resistant Achromobacter xylosoxidans clinical isolates from Serbia reveals shortened variant of class 1 integron integrase gene" in Folia Microbiologica (2022),
https://doi.org/10.1007/s12223-022-01026-8 . .

TY  - JOUR
AU  - Velhner, Maja
AU  - Todorović, Dalibor
AU  - Novović, Katarina
AU  - Jovčić, Branko
AU  - Lazić, Gospava
AU  - Kojić, Milan
AU  - Kehrenberg, Corinna
PY  - 2021
UR  - http://intor.torlakinstitut.com/handle/123456789/710
AB  - Despite common resistance to antimicrobials in Escherichia coli isolates from farm animals in Serbia, no data are currently accessible on its occurrence in E. coli isolated from gulls. Therefore, 67 cloacal swabs and 70 fecal samples from black-headed gulls were investigated for the presence of antibiotic-resistant E. coli isolates. Ninety-nine isolates were obtained during the study. Resistotyping and resistance gene typing has shown that 44 isolates harbor resistance to one or more antibiotics. Multidrug resistance was detected in 24 E. coli isolates. Ten isolates were resistant to extended-spectrum cephalosporin antibiotics and were studied in detail including virulence gene typing, phylogenetic and multilocus sequence typing, and mating. These ten isolates belonged to phylogenetic groups B2 (five isolates), D (four isolates) and B1 (one isolate). Five different sequence types (ST38, ST2307, ST224, ST162 and ST34) were detected in E. coli isolates with AmpC phenotype and genotype. One isolate carried the Inc I2/FIB replicon type plasmid with the bla(CTX-M-1) gene. Nine isolates had bla(CMY-2) genes, which were detected on conjugative plasmids in seven isolates. The virulence genes hly, iroN, iss, ompT and cvaC were detected in one transconjugant. Ten isolates were found to be resistant to ciprofloxacin, whose MIC ranged from 4 to 32 mg/L. Genotyping revealed single or double mutations in the quinolone resistance determining region (QRDR) of the gyrA or gyrA, parC and parE genes, respectively. So, Black-headed gulls from Serbia may be colonized by multidrug-resistant E. coli, some of which are resistant to critically important antibiotics in medicine.
PB  - Springer, Dordrecht
T2  - Veterinary Research Communications
T1  - Characterization of antibiotic resistance in Escherichia coli isolates from Black-headed gulls (Larus ridibundus) present in the city of Novi Sad, Serbia
EP  - 209
IS  - 4
SP  - 199
VL  - 45
DO  - 10.1007/s11259-021-09801-7
ER  - 

@article{
author = "Velhner, Maja and Todorović, Dalibor and Novović, Katarina and Jovčić, Branko and Lazić, Gospava and Kojić, Milan and Kehrenberg, Corinna",
year = "2021",
abstract = "Despite common resistance to antimicrobials in Escherichia coli isolates from farm animals in Serbia, no data are currently accessible on its occurrence in E. coli isolated from gulls. Therefore, 67 cloacal swabs and 70 fecal samples from black-headed gulls were investigated for the presence of antibiotic-resistant E. coli isolates. Ninety-nine isolates were obtained during the study. Resistotyping and resistance gene typing has shown that 44 isolates harbor resistance to one or more antibiotics. Multidrug resistance was detected in 24 E. coli isolates. Ten isolates were resistant to extended-spectrum cephalosporin antibiotics and were studied in detail including virulence gene typing, phylogenetic and multilocus sequence typing, and mating. These ten isolates belonged to phylogenetic groups B2 (five isolates), D (four isolates) and B1 (one isolate). Five different sequence types (ST38, ST2307, ST224, ST162 and ST34) were detected in E. coli isolates with AmpC phenotype and genotype. One isolate carried the Inc I2/FIB replicon type plasmid with the bla(CTX-M-1) gene. Nine isolates had bla(CMY-2) genes, which were detected on conjugative plasmids in seven isolates. The virulence genes hly, iroN, iss, ompT and cvaC were detected in one transconjugant. Ten isolates were found to be resistant to ciprofloxacin, whose MIC ranged from 4 to 32 mg/L. Genotyping revealed single or double mutations in the quinolone resistance determining region (QRDR) of the gyrA or gyrA, parC and parE genes, respectively. So, Black-headed gulls from Serbia may be colonized by multidrug-resistant E. coli, some of which are resistant to critically important antibiotics in medicine.",
publisher = "Springer, Dordrecht",
journal = "Veterinary Research Communications",
title = "Characterization of antibiotic resistance in Escherichia coli isolates from Black-headed gulls (Larus ridibundus) present in the city of Novi Sad, Serbia",
pages = "209-199",
number = "4",
volume = "45",
doi = "10.1007/s11259-021-09801-7"
}

Velhner, M., Todorović, D., Novović, K., Jovčić, B., Lazić, G., Kojić, M.,& Kehrenberg, C.. (2021). Characterization of antibiotic resistance in Escherichia coli isolates from Black-headed gulls (Larus ridibundus) present in the city of Novi Sad, Serbia. in Veterinary Research Communications
Springer, Dordrecht., 45(4), 199-209.
https://doi.org/10.1007/s11259-021-09801-7

Velhner M, Todorović D, Novović K, Jovčić B, Lazić G, Kojić M, Kehrenberg C. Characterization of antibiotic resistance in Escherichia coli isolates from Black-headed gulls (Larus ridibundus) present in the city of Novi Sad, Serbia. in Veterinary Research Communications. 2021;45(4):199-209.
doi:10.1007/s11259-021-09801-7 .

Velhner, Maja, Todorović, Dalibor, Novović, Katarina, Jovčić, Branko, Lazić, Gospava, Kojić, Milan, Kehrenberg, Corinna, "Characterization of antibiotic resistance in Escherichia coli isolates from Black-headed gulls (Larus ridibundus) present in the city of Novi Sad, Serbia" in Veterinary Research Communications, 45, no. 4 (2021):199-209,
https://doi.org/10.1007/s11259-021-09801-7 . .

TY  - CONF
AU  - Malešević, Milka
AU  - Rašić, Slađan
AU  - Santra, Violeta
AU  - Kojić, Milan
AU  - Stanisavljević, Nemanja
PY  - 2021
UR  - https://imagine.imgge.bg.ac.rs/handle/123456789/1871
UR  - http://intor.torlakinstitut.com/handle/123456789/703
AB  - Among them, bacterial and fungal pathogens Paenibacillus larvae, Melissococcus pluton, Ascosphera apis andNosema ceranae play a major impact on honey bees colonies. Thus, developing alternative prophylactic andcurative strategies are urgently needed. The use of probiotic bacteria in honey bee supplemental feeding istherefore promising to treat or prevent diseases. Brevibacillus laterosporus, Gram-positive endospore formingbacilli, is recognised as one of the promising antibacterial and antifungal agents producer.The aim of this study was to examine the short-therm effects of B. laterosporus supplemented diet on workerhoney bee microbiome.Dry spores of B. laterosporus strain BGSP11 have been administrated through a sugar syrup diet to tencolonies and a representative specimen of worker honey bees was taken before the start of the treatmentand immediately after the syrup was consumed. The microbial diversity was assessed before and after thetreatment using Illumina MiSeq sequencing platforms (ID Genomics service, Seattle, WA, USA). 16s rRNAsequencing for bacterial community profiling and fungal Internally Transcribes Spacer for mycological taxaprofiling were used. The next-generation microbiome bioinformatics platform QIIME2 v 2021.4 was used forfiltering and denoising obtained sequences, calculation of diversity metrics and taxonomy assignment. Thefeature classifier was trained using the Greengenes v 13_8 for bacterial taxa and fungal UNITE database v 8.3.The results obtained in this study indicated statisticaly significant alfa diversity between control and experimentalgroup honey bee microbiota composition. The diversity abundance was higher in control comparingto the group treated with B. laterosporus strain BGSP11 spores. There was no significant diference in Bray-Curtis distance among two groups of analysed samples. Regarding to mycological abundance, compositionwas completely different between two groups; control group had Claviceps as predominant genus, while intreated group of honey bee microbiome Metschnikowia genus was prevalent, indicating that the presence offungal pathogens in treated group is highly diminished.
PB  - Novi Sad : Faculty of Sciences, Department of Biology and Ecology
C3  - Biologia Serbica
T1  - Brevibacillus laterosporus supplementation diet modulates honey bee microbiome
IS  - 1 (Special Edition)
SP  - 113
VL  - 43
UR  - https://hdl.handle.net/21.15107/rcub_intor_703
ER  - 

@conference{
author = "Malešević, Milka and Rašić, Slađan and Santra, Violeta and Kojić, Milan and Stanisavljević, Nemanja",
year = "2021",
abstract = "Among them, bacterial and fungal pathogens Paenibacillus larvae, Melissococcus pluton, Ascosphera apis andNosema ceranae play a major impact on honey bees colonies. Thus, developing alternative prophylactic andcurative strategies are urgently needed. The use of probiotic bacteria in honey bee supplemental feeding istherefore promising to treat or prevent diseases. Brevibacillus laterosporus, Gram-positive endospore formingbacilli, is recognised as one of the promising antibacterial and antifungal agents producer.The aim of this study was to examine the short-therm effects of B. laterosporus supplemented diet on workerhoney bee microbiome.Dry spores of B. laterosporus strain BGSP11 have been administrated through a sugar syrup diet to tencolonies and a representative specimen of worker honey bees was taken before the start of the treatmentand immediately after the syrup was consumed. The microbial diversity was assessed before and after thetreatment using Illumina MiSeq sequencing platforms (ID Genomics service, Seattle, WA, USA). 16s rRNAsequencing for bacterial community profiling and fungal Internally Transcribes Spacer for mycological taxaprofiling were used. The next-generation microbiome bioinformatics platform QIIME2 v 2021.4 was used forfiltering and denoising obtained sequences, calculation of diversity metrics and taxonomy assignment. Thefeature classifier was trained using the Greengenes v 13_8 for bacterial taxa and fungal UNITE database v 8.3.The results obtained in this study indicated statisticaly significant alfa diversity between control and experimentalgroup honey bee microbiota composition. The diversity abundance was higher in control comparingto the group treated with B. laterosporus strain BGSP11 spores. There was no significant diference in Bray-Curtis distance among two groups of analysed samples. Regarding to mycological abundance, compositionwas completely different between two groups; control group had Claviceps as predominant genus, while intreated group of honey bee microbiome Metschnikowia genus was prevalent, indicating that the presence offungal pathogens in treated group is highly diminished.",
publisher = "Novi Sad : Faculty of Sciences, Department of Biology and Ecology",
journal = "Biologia Serbica",
title = "Brevibacillus laterosporus supplementation diet modulates honey bee microbiome",
number = "1 (Special Edition)",
pages = "113",
volume = "43",
url = "https://hdl.handle.net/21.15107/rcub_intor_703"
}

Malešević, M., Rašić, S., Santra, V., Kojić, M.,& Stanisavljević, N.. (2021). Brevibacillus laterosporus supplementation diet modulates honey bee microbiome. in Biologia Serbica
Novi Sad : Faculty of Sciences, Department of Biology and Ecology., 43(1 (Special Edition)), 113.
https://hdl.handle.net/21.15107/rcub_intor_703

Malešević M, Rašić S, Santra V, Kojić M, Stanisavljević N. Brevibacillus laterosporus supplementation diet modulates honey bee microbiome. in Biologia Serbica. 2021;43(1 (Special Edition)):113.
https://hdl.handle.net/21.15107/rcub_intor_703 .

Malešević, Milka, Rašić, Slađan, Santra, Violeta, Kojić, Milan, Stanisavljević, Nemanja, "Brevibacillus laterosporus supplementation diet modulates honey bee microbiome" in Biologia Serbica, 43, no. 1 (Special Edition) (2021):113,
https://hdl.handle.net/21.15107/rcub_intor_703 .

TY  - JOUR
AU  - Jovčić, Branko
AU  - Novović, Katarina
AU  - Filipić, Brankica
AU  - Velhner, Maja
AU  - Todorović, Dalibor
AU  - Matović, Kazimir
AU  - Rasić, Zoran
AU  - Nikolić, Sonja
AU  - Kiskarolj, Ferenc
AU  - Kojić, Milan
PY  - 2020
UR  - https://imagine.imgge.bg.ac.rs/handle/123456789/1349
UR  - http://intor.torlakinstitut.com/handle/123456789/744
AB  - The antimicrobial susceptibility testing was conducted on 174 single isolates from poultry farms in Serbia and it was determined that seven Salmonella spp. were multidrug resistant. Sixteen serotypes were detected, but only serotype Infantis confirmed reduced susceptibility to colistin. Seven colistin resistant Salmonella Infantis were studied in detail using the WGS approach. Three sequence types were identified corresponding to different epizootiology region. The isolate from the Province of Vojvodina 3842 and isolates from Jagodina (92 and 821) are represented by the sequence type ST413 and ST11, respectively. Four isolates from Kraljevo are ST32, a common S. Infantis sequence type in humans, poultry and food. The fosfomycin resistance gene fosA7 in isolate 3842 and the vgaA gene in isolate 8418/2948 encoding resistance to pleuromutilins were reported for the first time in serovar Infantis. The changes in relative expression of the phoP/Q, mgrB and pmrA/B genes were detected. Single nucleotide polymorphisms of the pmrB gene, including transitions Val164Gly or Val164Met, and Arg92Pro are described. Analyses of quinolone resistance determining region revealed substitutions Ser83Tyr in GyrA protein and Thr57Ser and Ser80Arg in ParC protein. Based on WGS data, there are two major clusters among analyzed Salmonella Infantis isolates from central Serbia.
PB  - MDPI, Basel
T2  - Antibiotics-Basel
T1  - Genomic Characteristics of Colistin-Resistant Salmonella enterica subsp. enterica Serovar Infantis from Poultry Farms in the Republic of Serbia
IS  - 12
VL  - 9
DO  - 10.3390/antibiotics9120886
ER  - 

@article{
author = "Jovčić, Branko and Novović, Katarina and Filipić, Brankica and Velhner, Maja and Todorović, Dalibor and Matović, Kazimir and Rasić, Zoran and Nikolić, Sonja and Kiskarolj, Ferenc and Kojić, Milan",
year = "2020",
abstract = "The antimicrobial susceptibility testing was conducted on 174 single isolates from poultry farms in Serbia and it was determined that seven Salmonella spp. were multidrug resistant. Sixteen serotypes were detected, but only serotype Infantis confirmed reduced susceptibility to colistin. Seven colistin resistant Salmonella Infantis were studied in detail using the WGS approach. Three sequence types were identified corresponding to different epizootiology region. The isolate from the Province of Vojvodina 3842 and isolates from Jagodina (92 and 821) are represented by the sequence type ST413 and ST11, respectively. Four isolates from Kraljevo are ST32, a common S. Infantis sequence type in humans, poultry and food. The fosfomycin resistance gene fosA7 in isolate 3842 and the vgaA gene in isolate 8418/2948 encoding resistance to pleuromutilins were reported for the first time in serovar Infantis. The changes in relative expression of the phoP/Q, mgrB and pmrA/B genes were detected. Single nucleotide polymorphisms of the pmrB gene, including transitions Val164Gly or Val164Met, and Arg92Pro are described. Analyses of quinolone resistance determining region revealed substitutions Ser83Tyr in GyrA protein and Thr57Ser and Ser80Arg in ParC protein. Based on WGS data, there are two major clusters among analyzed Salmonella Infantis isolates from central Serbia.",
publisher = "MDPI, Basel",
journal = "Antibiotics-Basel",
title = "Genomic Characteristics of Colistin-Resistant Salmonella enterica subsp. enterica Serovar Infantis from Poultry Farms in the Republic of Serbia",
number = "12",
volume = "9",
doi = "10.3390/antibiotics9120886"
}

Jovčić, B., Novović, K., Filipić, B., Velhner, M., Todorović, D., Matović, K., Rasić, Z., Nikolić, S., Kiskarolj, F.,& Kojić, M.. (2020). Genomic Characteristics of Colistin-Resistant Salmonella enterica subsp. enterica Serovar Infantis from Poultry Farms in the Republic of Serbia. in Antibiotics-Basel
MDPI, Basel., 9(12).
https://doi.org/10.3390/antibiotics9120886

Jovčić B, Novović K, Filipić B, Velhner M, Todorović D, Matović K, Rasić Z, Nikolić S, Kiskarolj F, Kojić M. Genomic Characteristics of Colistin-Resistant Salmonella enterica subsp. enterica Serovar Infantis from Poultry Farms in the Republic of Serbia. in Antibiotics-Basel. 2020;9(12).
doi:10.3390/antibiotics9120886 .

Jovčić, Branko, Novović, Katarina, Filipić, Brankica, Velhner, Maja, Todorović, Dalibor, Matović, Kazimir, Rasić, Zoran, Nikolić, Sonja, Kiskarolj, Ferenc, Kojić, Milan, "Genomic Characteristics of Colistin-Resistant Salmonella enterica subsp. enterica Serovar Infantis from Poultry Farms in the Republic of Serbia" in Antibiotics-Basel, 9, no. 12 (2020),
https://doi.org/10.3390/antibiotics9120886 . .

TY  - JOUR
AU  - Terzić-Vidojević, Amarela
AU  - Veljović, Katarina
AU  - Tolinački, Maja
AU  - Živković, Milica
AU  - Lukić, Jovanka
AU  - Lozo, Jelena
AU  - Fira, Đorđe
AU  - Jovčić, Branko
AU  - Strahinić, Ivana
AU  - Begović, Jelena
AU  - Popović, Nikola
AU  - Miljković, Marija
AU  - Kojić, Milan
AU  - Topisirović, Ljubiša
AU  - Golić, Nataša
PY  - 2020
UR  - http://intor.torlakinstitut.com/handle/123456789/733
AB  - The aim of this review was to summarize the data regarding diversity of non-starter lactic acid bacteria (NSLAB) isolated from various artisanal dairy products manufactured in Western Balkan Countries. The dairy products examined were manufactured from raw cow's, sheep's or goat's milk or mixed milk, in the traditional way without the addition of commercial starter cultures. Dairy products such as white brined cheese, fresh cheese, hard cheese, yogurt, sour cream and kajmak were sampled in the households of Serbia, Croatia, Slovenia, Bosnia and Herzegovina, Montenegro, and North Macedonia. It has been established that the diversity of lactic acid bacteria (LAB) from raw milk artisanal dairy products is extensive. In the reviewed literature, 28 LAB species and a large number of strains belonging to the Lactobacillus, Lactococcus, Enterococcus, Streptococcus, Pediococcus, Leuconostoc and Weissella genera were isolated from various dairy products. Over 3000 LAB strains were obtained and characterized for their technological and probiotic properties including: acidification and coagulation of milk, production of aromatic compounds, proteolytic activity, bacteriocins production and competitive exclusion of pathogens, production of exopolysaccharides, aggregation ability and immunomodulatory effect. Results show that many of the isolated NSLAB strains had one, two or more of the properties mentioned. The data presented emphasize the importance of artisanal products as a valuable source of NSLAB with unique technological and probiotic features important both as a base for scientific research as well as for designing novel starter cultures for functional dairy food.
PB  - Elsevier, Amsterdam
T2  - Food Research International
T1  - Diversity of non-starter lactic acid bacteria in autochthonous dairy products from Western Balkan Countries - Technological and probiotic properties
VL  - 136
DO  - 10.1016/j.foodres.2020.109494
ER  - 

@article{
author = "Terzić-Vidojević, Amarela and Veljović, Katarina and Tolinački, Maja and Živković, Milica and Lukić, Jovanka and Lozo, Jelena and Fira, Đorđe and Jovčić, Branko and Strahinić, Ivana and Begović, Jelena and Popović, Nikola and Miljković, Marija and Kojić, Milan and Topisirović, Ljubiša and Golić, Nataša",
year = "2020",
abstract = "The aim of this review was to summarize the data regarding diversity of non-starter lactic acid bacteria (NSLAB) isolated from various artisanal dairy products manufactured in Western Balkan Countries. The dairy products examined were manufactured from raw cow's, sheep's or goat's milk or mixed milk, in the traditional way without the addition of commercial starter cultures. Dairy products such as white brined cheese, fresh cheese, hard cheese, yogurt, sour cream and kajmak were sampled in the households of Serbia, Croatia, Slovenia, Bosnia and Herzegovina, Montenegro, and North Macedonia. It has been established that the diversity of lactic acid bacteria (LAB) from raw milk artisanal dairy products is extensive. In the reviewed literature, 28 LAB species and a large number of strains belonging to the Lactobacillus, Lactococcus, Enterococcus, Streptococcus, Pediococcus, Leuconostoc and Weissella genera were isolated from various dairy products. Over 3000 LAB strains were obtained and characterized for their technological and probiotic properties including: acidification and coagulation of milk, production of aromatic compounds, proteolytic activity, bacteriocins production and competitive exclusion of pathogens, production of exopolysaccharides, aggregation ability and immunomodulatory effect. Results show that many of the isolated NSLAB strains had one, two or more of the properties mentioned. The data presented emphasize the importance of artisanal products as a valuable source of NSLAB with unique technological and probiotic features important both as a base for scientific research as well as for designing novel starter cultures for functional dairy food.",
publisher = "Elsevier, Amsterdam",
journal = "Food Research International",
title = "Diversity of non-starter lactic acid bacteria in autochthonous dairy products from Western Balkan Countries - Technological and probiotic properties",
volume = "136",
doi = "10.1016/j.foodres.2020.109494"
}

Terzić-Vidojević, A., Veljović, K., Tolinački, M., Živković, M., Lukić, J., Lozo, J., Fira, Đ., Jovčić, B., Strahinić, I., Begović, J., Popović, N., Miljković, M., Kojić, M., Topisirović, L.,& Golić, N.. (2020). Diversity of non-starter lactic acid bacteria in autochthonous dairy products from Western Balkan Countries - Technological and probiotic properties. in Food Research International
Elsevier, Amsterdam., 136.
https://doi.org/10.1016/j.foodres.2020.109494

Terzić-Vidojević A, Veljović K, Tolinački M, Živković M, Lukić J, Lozo J, Fira Đ, Jovčić B, Strahinić I, Begović J, Popović N, Miljković M, Kojić M, Topisirović L, Golić N. Diversity of non-starter lactic acid bacteria in autochthonous dairy products from Western Balkan Countries - Technological and probiotic properties. in Food Research International. 2020;136.
doi:10.1016/j.foodres.2020.109494 .

Terzić-Vidojević, Amarela, Veljović, Katarina, Tolinački, Maja, Živković, Milica, Lukić, Jovanka, Lozo, Jelena, Fira, Đorđe, Jovčić, Branko, Strahinić, Ivana, Begović, Jelena, Popović, Nikola, Miljković, Marija, Kojić, Milan, Topisirović, Ljubiša, Golić, Nataša, "Diversity of non-starter lactic acid bacteria in autochthonous dairy products from Western Balkan Countries - Technological and probiotic properties" in Food Research International, 136 (2020),
https://doi.org/10.1016/j.foodres.2020.109494 . .

TY  - JOUR
AU  - Terzić-Vidojević, Amarela
AU  - Veljović, Katarina
AU  - Tolinački, Maja
AU  - Živković, Milica
AU  - Lukić, Jovanka
AU  - Lozo, Jelena
AU  - Fira, Đorđe
AU  - Jovčić, Branko
AU  - Strahinić, Ivana
AU  - Begović, Jelena
AU  - Popović, Nikola
AU  - Miljković, Marija
AU  - Kojić, Milan
AU  - Topisirović, Ljubiša
AU  - Golić, Nataša
PY  - 2020
UR  - http://intor.torlakinstitut.com/handle/123456789/732
AB  - The aim of this review was to summarize the data regarding diversity of non-starter lactic acid bacteria (NSLAB) isolated from various artisanal dairy products manufactured in Western Balkan Countries. The dairy products examined were manufactured from raw cow's, sheep's or goat's milk or mixed milk, in the traditional way without the addition of commercial starter cultures. Dairy products such as white brined cheese, fresh cheese, hard cheese, yogurt, sour cream and kajmak were sampled in the households of Serbia, Croatia, Slovenia, Bosnia and Herzegovina, Montenegro, and North Macedonia. It has been established that the diversity of lactic acid bacteria (LAB) from raw milk artisanal dairy products is extensive. In the reviewed literature, 28 LAB species and a large number of strains belonging to the Lactobacillus, Lactococcus, Enterococcus, Streptococcus, Pediococcus, Leuconostoc and Weissella genera were isolated from various dairy products. Over 3000 LAB strains were obtained and characterized for their technological and probiotic properties including: acidification and coagulation of milk, production of aromatic compounds, proteolytic activity, bacteriocins production and competitive exclusion of pathogens, production of exopolysaccharides, aggregation ability and immunomodulatory effect. Results show that many of the isolated NSLAB strains had one, two or more of the properties mentioned. The data presented emphasize the importance of artisanal products as a valuable source of NSLAB with unique technological and probiotic features important both as a base for scientific research as well as for designing novel starter cultures for functional dairy food.
PB  - Elsevier, Amsterdam
T2  - Food Research International
T1  - Diversity of non-starter lactic acid bacteria in autochthonous dairy products from Western Balkan Countries - Technological and probiotic properties
VL  - 136
DO  - 10.1016/j.foodres.2020.109494
ER  - 

@article{
author = "Terzić-Vidojević, Amarela and Veljović, Katarina and Tolinački, Maja and Živković, Milica and Lukić, Jovanka and Lozo, Jelena and Fira, Đorđe and Jovčić, Branko and Strahinić, Ivana and Begović, Jelena and Popović, Nikola and Miljković, Marija and Kojić, Milan and Topisirović, Ljubiša and Golić, Nataša",
year = "2020",
abstract = "The aim of this review was to summarize the data regarding diversity of non-starter lactic acid bacteria (NSLAB) isolated from various artisanal dairy products manufactured in Western Balkan Countries. The dairy products examined were manufactured from raw cow's, sheep's or goat's milk or mixed milk, in the traditional way without the addition of commercial starter cultures. Dairy products such as white brined cheese, fresh cheese, hard cheese, yogurt, sour cream and kajmak were sampled in the households of Serbia, Croatia, Slovenia, Bosnia and Herzegovina, Montenegro, and North Macedonia. It has been established that the diversity of lactic acid bacteria (LAB) from raw milk artisanal dairy products is extensive. In the reviewed literature, 28 LAB species and a large number of strains belonging to the Lactobacillus, Lactococcus, Enterococcus, Streptococcus, Pediococcus, Leuconostoc and Weissella genera were isolated from various dairy products. Over 3000 LAB strains were obtained and characterized for their technological and probiotic properties including: acidification and coagulation of milk, production of aromatic compounds, proteolytic activity, bacteriocins production and competitive exclusion of pathogens, production of exopolysaccharides, aggregation ability and immunomodulatory effect. Results show that many of the isolated NSLAB strains had one, two or more of the properties mentioned. The data presented emphasize the importance of artisanal products as a valuable source of NSLAB with unique technological and probiotic features important both as a base for scientific research as well as for designing novel starter cultures for functional dairy food.",
publisher = "Elsevier, Amsterdam",
journal = "Food Research International",
title = "Diversity of non-starter lactic acid bacteria in autochthonous dairy products from Western Balkan Countries - Technological and probiotic properties",
volume = "136",
doi = "10.1016/j.foodres.2020.109494"
}

Terzić-Vidojević, A., Veljović, K., Tolinački, M., Živković, M., Lukić, J., Lozo, J., Fira, Đ., Jovčić, B., Strahinić, I., Begović, J., Popović, N., Miljković, M., Kojić, M., Topisirović, L.,& Golić, N.. (2020). Diversity of non-starter lactic acid bacteria in autochthonous dairy products from Western Balkan Countries - Technological and probiotic properties. in Food Research International
Elsevier, Amsterdam., 136.
https://doi.org/10.1016/j.foodres.2020.109494

Terzić-Vidojević A, Veljović K, Tolinački M, Živković M, Lukić J, Lozo J, Fira Đ, Jovčić B, Strahinić I, Begović J, Popović N, Miljković M, Kojić M, Topisirović L, Golić N. Diversity of non-starter lactic acid bacteria in autochthonous dairy products from Western Balkan Countries - Technological and probiotic properties. in Food Research International. 2020;136.
doi:10.1016/j.foodres.2020.109494 .

Terzić-Vidojević, Amarela, Veljović, Katarina, Tolinački, Maja, Živković, Milica, Lukić, Jovanka, Lozo, Jelena, Fira, Đorđe, Jovčić, Branko, Strahinić, Ivana, Begović, Jelena, Popović, Nikola, Miljković, Marija, Kojić, Milan, Topisirović, Ljubiša, Golić, Nataša, "Diversity of non-starter lactic acid bacteria in autochthonous dairy products from Western Balkan Countries - Technological and probiotic properties" in Food Research International, 136 (2020),
https://doi.org/10.1016/j.foodres.2020.109494 . .

TY  - JOUR
AU  - Vukotić, Goran
AU  - Obradović, Mina
AU  - Novović, Katarina
AU  - Di Luca, Mariagrazia
AU  - Jovčić, Branko
AU  - Fira, Đorđe
AU  - Neve, Horst
AU  - Kojić, Milan
AU  - McAuliffe, Olivia
PY  - 2020
UR  - http://intor.torlakinstitut.com/handle/123456789/721
AB  - Acinetobacter baumanniiis a leading cause of healthcare-associated infections worldwide. Its various intrinsic and acquired mechanisms of antibiotic resistance make the therapeutic challenge even more serious. One of the promising alternative treatments that is increasingly highlighted is phage therapy, the therapeutic use of bacteriophages to treat bacterial infections. Two phages active against nosocomial carbapenem-resistantA. baumanniistrain 6077/12, vB_AbaM_ISTD, and vB_AbaM_NOVI, were isolated from Belgrade wastewaters, purified, and concentrated using CsCl gradient ultracentrifugation. The phages were screened against 103 clinical isolates ofA. baumanniifrom a laboratory collection and characterized based on plaque and virion morphology, host range, adsorption rate, and one-step growth curve. Given that phage ISTD showed a broader host range, better adsorption rate, shorter latent period, and larger burst size, its ability to lyse planktonic and biofilm-embedded cells was tested in detail. Phage ISTD yielded a 3.5- and 2-log reduction in planktonic and biofilm-associated viable bacterial cell count, respectively, but the effect was time-dependent. Both phages produced growing turbid halos around plaques indicating the synthesis of depolymerases, enzymes capable of degrading bacterial exopolysaccharides. Halos tested positive for presence of phages in the proximity of the plaque, but not further from the plaque, which indicates that the observed halo enlargement is a consequence of enzyme diffusion through the agar, independently of the phages. This notion was also supported by the growing halos induced by phage preparations applied on pregrown bacterial lawns, indicating that depolymerizing effect was achieved also on non-dividing sensitive cells. Overall, good rates of growth, fast adsorption rate, broad host range, and high depolymerizing activity, as well as antibacterial effectiveness against planktonic and biofilm-associated bacteria, make these phages good candidates for potential application in combatingA. baumanniiinfections.
PB  - Frontiers Media Sa, Lausanne
T2  - Frontiers in Medicine
T1  - Characterization, Antibiofilm, and Depolymerizing Activity of Two Phages Active on Carbapenem-ResistantAcinetobacter baumannii
VL  - 7
DO  - 10.3389/fmed.2020.00426
ER  - 

@article{
author = "Vukotić, Goran and Obradović, Mina and Novović, Katarina and Di Luca, Mariagrazia and Jovčić, Branko and Fira, Đorđe and Neve, Horst and Kojić, Milan and McAuliffe, Olivia",
year = "2020",
abstract = "Acinetobacter baumanniiis a leading cause of healthcare-associated infections worldwide. Its various intrinsic and acquired mechanisms of antibiotic resistance make the therapeutic challenge even more serious. One of the promising alternative treatments that is increasingly highlighted is phage therapy, the therapeutic use of bacteriophages to treat bacterial infections. Two phages active against nosocomial carbapenem-resistantA. baumanniistrain 6077/12, vB_AbaM_ISTD, and vB_AbaM_NOVI, were isolated from Belgrade wastewaters, purified, and concentrated using CsCl gradient ultracentrifugation. The phages were screened against 103 clinical isolates ofA. baumanniifrom a laboratory collection and characterized based on plaque and virion morphology, host range, adsorption rate, and one-step growth curve. Given that phage ISTD showed a broader host range, better adsorption rate, shorter latent period, and larger burst size, its ability to lyse planktonic and biofilm-embedded cells was tested in detail. Phage ISTD yielded a 3.5- and 2-log reduction in planktonic and biofilm-associated viable bacterial cell count, respectively, but the effect was time-dependent. Both phages produced growing turbid halos around plaques indicating the synthesis of depolymerases, enzymes capable of degrading bacterial exopolysaccharides. Halos tested positive for presence of phages in the proximity of the plaque, but not further from the plaque, which indicates that the observed halo enlargement is a consequence of enzyme diffusion through the agar, independently of the phages. This notion was also supported by the growing halos induced by phage preparations applied on pregrown bacterial lawns, indicating that depolymerizing effect was achieved also on non-dividing sensitive cells. Overall, good rates of growth, fast adsorption rate, broad host range, and high depolymerizing activity, as well as antibacterial effectiveness against planktonic and biofilm-associated bacteria, make these phages good candidates for potential application in combatingA. baumanniiinfections.",
publisher = "Frontiers Media Sa, Lausanne",
journal = "Frontiers in Medicine",
title = "Characterization, Antibiofilm, and Depolymerizing Activity of Two Phages Active on Carbapenem-ResistantAcinetobacter baumannii",
volume = "7",
doi = "10.3389/fmed.2020.00426"
}

Vukotić, G., Obradović, M., Novović, K., Di Luca, M., Jovčić, B., Fira, Đ., Neve, H., Kojić, M.,& McAuliffe, O.. (2020). Characterization, Antibiofilm, and Depolymerizing Activity of Two Phages Active on Carbapenem-ResistantAcinetobacter baumannii. in Frontiers in Medicine
Frontiers Media Sa, Lausanne., 7.
https://doi.org/10.3389/fmed.2020.00426

Vukotić G, Obradović M, Novović K, Di Luca M, Jovčić B, Fira Đ, Neve H, Kojić M, McAuliffe O. Characterization, Antibiofilm, and Depolymerizing Activity of Two Phages Active on Carbapenem-ResistantAcinetobacter baumannii. in Frontiers in Medicine. 2020;7.
doi:10.3389/fmed.2020.00426 .

Vukotić, Goran, Obradović, Mina, Novović, Katarina, Di Luca, Mariagrazia, Jovčić, Branko, Fira, Đorđe, Neve, Horst, Kojić, Milan, McAuliffe, Olivia, "Characterization, Antibiofilm, and Depolymerizing Activity of Two Phages Active on Carbapenem-ResistantAcinetobacter baumannii" in Frontiers in Medicine, 7 (2020),
https://doi.org/10.3389/fmed.2020.00426 . .

TY  - JOUR
AU  - Malešević, Milka
AU  - Stanisavljević, Nemanja
AU  - Novović, Katarina
AU  - Polović, Natalija
AU  - Vasiljević, Zorica
AU  - Kojić, Milan
AU  - Jovčić, Branko
PY  - 2020
UR  - https://imagine.imgge.bg.ac.rs/handle/123456789/1338
UR  - http://intor.torlakinstitut.com/handle/123456789/705
AB  - Burkholderia cepacia is well known as the causative agent of infections in humans where often shares niche with other pathogens, like Pseudomonas aeruginosa. Clinical isolate Burkholderia sp. BCC4135 was selected due to its strong quorum quenching (QQ) activity. Whole genome sequencing unveiled this isolate as B. cepacia with unique sequence type ST1485 and a myriad of genes belonging to resistome and virulome. Two QQ lactonases YtnP and Y2-aiiA originated from B. cepacia BCC4135 were cloned, expressed, and functionally characterized. They were active against a broad substrate spectrum of the N-acyl-homoserine lactones (AHLs). The YtnP lactonase was inactive, while Y2-aiiA was active against N-tetradecanoyl-DL-homoserine lactone (C14-HSL) which could imply the difference in their biological roles from the aspect of its quorum sensing (QS) autoregulation and interference with the QS systems of bacteria residing within the same niche. Both YtnP and Y2-aiiA were able to attenuate virulence potential of P. aeruginosa MMA83 clinical isolate declining its biofilm formation and virulence factors production. B. cepacia BCC4135 lactonases interfered with the las, rhl, and even pqs QS circuit of P. aeruginosa MMA83 transcription and the effect of combined enzymes was even more prominent. B. cepacia BCC4135 also employs the CepI/R QS system for governing its own virulence traits and possibly self-regulates the QQ/QS network through the different expression and activity of YtnP and/or Y2-aiiA. Our findings pointed out that BCC4135 lactonases could be exploited as an effective antivirulence drugs against P. aeruginosa and gave us a new insight into B. cepacia QQ/QS machinery.
PB  - Academic Press Ltd- Elsevier Science Ltd, London
T2  - Microbial Pathogenesis
T1  - Burkholderia cepacia YtnP and Y2-aiiA lactonases inhibit virulence of Pseudomonas aeruginosa via quorum quenching activity
VL  - 149
DO  - 10.1016/j.micpath.2020.104561
ER  - 

@article{
author = "Malešević, Milka and Stanisavljević, Nemanja and Novović, Katarina and Polović, Natalija and Vasiljević, Zorica and Kojić, Milan and Jovčić, Branko",
year = "2020",
abstract = "Burkholderia cepacia is well known as the causative agent of infections in humans where often shares niche with other pathogens, like Pseudomonas aeruginosa. Clinical isolate Burkholderia sp. BCC4135 was selected due to its strong quorum quenching (QQ) activity. Whole genome sequencing unveiled this isolate as B. cepacia with unique sequence type ST1485 and a myriad of genes belonging to resistome and virulome. Two QQ lactonases YtnP and Y2-aiiA originated from B. cepacia BCC4135 were cloned, expressed, and functionally characterized. They were active against a broad substrate spectrum of the N-acyl-homoserine lactones (AHLs). The YtnP lactonase was inactive, while Y2-aiiA was active against N-tetradecanoyl-DL-homoserine lactone (C14-HSL) which could imply the difference in their biological roles from the aspect of its quorum sensing (QS) autoregulation and interference with the QS systems of bacteria residing within the same niche. Both YtnP and Y2-aiiA were able to attenuate virulence potential of P. aeruginosa MMA83 clinical isolate declining its biofilm formation and virulence factors production. B. cepacia BCC4135 lactonases interfered with the las, rhl, and even pqs QS circuit of P. aeruginosa MMA83 transcription and the effect of combined enzymes was even more prominent. B. cepacia BCC4135 also employs the CepI/R QS system for governing its own virulence traits and possibly self-regulates the QQ/QS network through the different expression and activity of YtnP and/or Y2-aiiA. Our findings pointed out that BCC4135 lactonases could be exploited as an effective antivirulence drugs against P. aeruginosa and gave us a new insight into B. cepacia QQ/QS machinery.",
publisher = "Academic Press Ltd- Elsevier Science Ltd, London",
journal = "Microbial Pathogenesis",
title = "Burkholderia cepacia YtnP and Y2-aiiA lactonases inhibit virulence of Pseudomonas aeruginosa via quorum quenching activity",
volume = "149",
doi = "10.1016/j.micpath.2020.104561"
}

Malešević, M., Stanisavljević, N., Novović, K., Polović, N., Vasiljević, Z., Kojić, M.,& Jovčić, B.. (2020). Burkholderia cepacia YtnP and Y2-aiiA lactonases inhibit virulence of Pseudomonas aeruginosa via quorum quenching activity. in Microbial Pathogenesis
Academic Press Ltd- Elsevier Science Ltd, London., 149.
https://doi.org/10.1016/j.micpath.2020.104561

Malešević M, Stanisavljević N, Novović K, Polović N, Vasiljević Z, Kojić M, Jovčić B. Burkholderia cepacia YtnP and Y2-aiiA lactonases inhibit virulence of Pseudomonas aeruginosa via quorum quenching activity. in Microbial Pathogenesis. 2020;149.
doi:10.1016/j.micpath.2020.104561 .

Malešević, Milka, Stanisavljević, Nemanja, Novović, Katarina, Polović, Natalija, Vasiljević, Zorica, Kojić, Milan, Jovčić, Branko, "Burkholderia cepacia YtnP and Y2-aiiA lactonases inhibit virulence of Pseudomonas aeruginosa via quorum quenching activity" in Microbial Pathogenesis, 149 (2020),
https://doi.org/10.1016/j.micpath.2020.104561 . .