TY  - JOUR
AU  - Živković, Milica
AU  - Hidalgo-Cantabrana, Claudio
AU  - Kojić, Milan
AU  - Gueimonde, Miguel
AU  - Golić, Nataša
AU  - Ruas-Madiedo, Patricia
PY  - 2015
UR  - http://intor.torlakinstitut.com/handle/123456789/707
AB  - The putative protective role of the exopolysaccharide (EPS)-producing Lactobacillus paraplantarum BGCG11, and its non-EPS-producing isogenic strain NB1, was tested upon HT29-MTX monolayers challenged with seven opportunistic pathogens. The probiotic strain Lactobacillus rhamnosus LMG18243 (GG) was used as a reference bacterium. Tested lactobacilli were able to efficiently reduce the attachment to HT29-MTX of most pathogens. Lb. paraplantarum NB1 and Lb. rhamnosus GG were more efficient reducing the adhesion of Clostridium difficile or Yersinia enterocolitica than Lb. paraplantarum BGCG11, while stain BGCG11 reduced, to a greater extent, the adhesion of Escherichia coli and Listeria monocytogenes. The detachment and cell lysis of HT29-MTX monolayers in the presence of pathogens alone and co-incubated with lactobacilli or purified EPS was followed. L. monocytogenes induced the strongest cell detachment among the seven tested pathogens and this effect was prevented by addition of purified EPS-CG11. The results suggest that this EPS could be an effective macromolecule in protection of HT29-MTX cells from the pathogen-induced lysis. Regarding innate intestinal barrier, the presence of C. difficile induced the highest IL-8 production in HT29-MTX cells and this capability was reinforced by the co-incubation with Lb. paraplantarum NB1 and Lb. rhamnosus GG. However, the increase in IL-8 production was not noticed when C difficile was co-incubated with EPS-producing Lb. paraplantarum BGCG11 strain or its purified EPS-CG11 polymer, thus indicating that the polymer could hinder the contact of bacteria with the intestinal epithelium. The measurement of mucus secreted by HT29-MTX and the expression of mud, muc2, muc3B and muc5AC genes in the presence of pathogens and lactobacilli suggested that all lactobacilli strains are weak "co-adjuvants" helping some pathogens to slightly increase the secretion of mucus by HT29-MTX, while purified EPS-CG11 did not induce mucus secretion. Taking altogether, Lb. paraplantarum BGCG11 could act towards the reinforcement of the innate mucosal barrier through the synthesis of a physical-protective EPS layer which could make difficult the contact of the pathogens with the epithelial cells.
PB  - Elsevier Science Bv, Amsterdam
T2  - Food Research International
T1  - Capability of exopolysaccharide-producing Lactobacillus paraplantarum BGCG11 and its non-producing isogenic strain NB1, to counteract the effect of enteropathogens upon the epithelial cell line HT29-MTX
EP  - 207
SP  - 199
VL  - 74
DO  - 10.1016/j.foodres.2015.05.012
ER  - 

@article{
author = "Živković, Milica and Hidalgo-Cantabrana, Claudio and Kojić, Milan and Gueimonde, Miguel and Golić, Nataša and Ruas-Madiedo, Patricia",
year = "2015",
abstract = "The putative protective role of the exopolysaccharide (EPS)-producing Lactobacillus paraplantarum BGCG11, and its non-EPS-producing isogenic strain NB1, was tested upon HT29-MTX monolayers challenged with seven opportunistic pathogens. The probiotic strain Lactobacillus rhamnosus LMG18243 (GG) was used as a reference bacterium. Tested lactobacilli were able to efficiently reduce the attachment to HT29-MTX of most pathogens. Lb. paraplantarum NB1 and Lb. rhamnosus GG were more efficient reducing the adhesion of Clostridium difficile or Yersinia enterocolitica than Lb. paraplantarum BGCG11, while stain BGCG11 reduced, to a greater extent, the adhesion of Escherichia coli and Listeria monocytogenes. The detachment and cell lysis of HT29-MTX monolayers in the presence of pathogens alone and co-incubated with lactobacilli or purified EPS was followed. L. monocytogenes induced the strongest cell detachment among the seven tested pathogens and this effect was prevented by addition of purified EPS-CG11. The results suggest that this EPS could be an effective macromolecule in protection of HT29-MTX cells from the pathogen-induced lysis. Regarding innate intestinal barrier, the presence of C. difficile induced the highest IL-8 production in HT29-MTX cells and this capability was reinforced by the co-incubation with Lb. paraplantarum NB1 and Lb. rhamnosus GG. However, the increase in IL-8 production was not noticed when C difficile was co-incubated with EPS-producing Lb. paraplantarum BGCG11 strain or its purified EPS-CG11 polymer, thus indicating that the polymer could hinder the contact of bacteria with the intestinal epithelium. The measurement of mucus secreted by HT29-MTX and the expression of mud, muc2, muc3B and muc5AC genes in the presence of pathogens and lactobacilli suggested that all lactobacilli strains are weak "co-adjuvants" helping some pathogens to slightly increase the secretion of mucus by HT29-MTX, while purified EPS-CG11 did not induce mucus secretion. Taking altogether, Lb. paraplantarum BGCG11 could act towards the reinforcement of the innate mucosal barrier through the synthesis of a physical-protective EPS layer which could make difficult the contact of the pathogens with the epithelial cells.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Food Research International",
title = "Capability of exopolysaccharide-producing Lactobacillus paraplantarum BGCG11 and its non-producing isogenic strain NB1, to counteract the effect of enteropathogens upon the epithelial cell line HT29-MTX",
pages = "207-199",
volume = "74",
doi = "10.1016/j.foodres.2015.05.012"
}

Živković, M., Hidalgo-Cantabrana, C., Kojić, M., Gueimonde, M., Golić, N.,& Ruas-Madiedo, P.. (2015). Capability of exopolysaccharide-producing Lactobacillus paraplantarum BGCG11 and its non-producing isogenic strain NB1, to counteract the effect of enteropathogens upon the epithelial cell line HT29-MTX. in Food Research International
Elsevier Science Bv, Amsterdam., 74, 199-207.
https://doi.org/10.1016/j.foodres.2015.05.012

Živković M, Hidalgo-Cantabrana C, Kojić M, Gueimonde M, Golić N, Ruas-Madiedo P. Capability of exopolysaccharide-producing Lactobacillus paraplantarum BGCG11 and its non-producing isogenic strain NB1, to counteract the effect of enteropathogens upon the epithelial cell line HT29-MTX. in Food Research International. 2015;74:199-207.
doi:10.1016/j.foodres.2015.05.012 .

Živković, Milica, Hidalgo-Cantabrana, Claudio, Kojić, Milan, Gueimonde, Miguel, Golić, Nataša, Ruas-Madiedo, Patricia, "Capability of exopolysaccharide-producing Lactobacillus paraplantarum BGCG11 and its non-producing isogenic strain NB1, to counteract the effect of enteropathogens upon the epithelial cell line HT29-MTX" in Food Research International, 74 (2015):199-207,
https://doi.org/10.1016/j.foodres.2015.05.012 . .

TY  - JOUR
AU  - Živković, Milica
AU  - Hidalgo-Cantabrana, Claudio
AU  - Kojić, Milan
AU  - Gueimonde, Miguel
AU  - Golić, Nataša
AU  - Ruas-Madiedo, Patricia
PY  - 2015
UR  - http://intor.torlakinstitut.com/handle/123456789/708
AB  - The putative protective role of the exopolysaccharide (EPS)-producing Lactobacillus paraplantarum BGCG11, and its non-EPS-producing isogenic strain NB1, was tested upon HT29-MTX monolayers challenged with seven opportunistic pathogens. The probiotic strain Lactobacillus rhamnosus LMG18243 (GG) was used as a reference bacterium. Tested lactobacilli were able to efficiently reduce the attachment to HT29-MTX of most pathogens. Lb. paraplantarum NB1 and Lb. rhamnosus GG were more efficient reducing the adhesion of Clostridium difficile or Yersinia enterocolitica than Lb. paraplantarum BGCG11, while stain BGCG11 reduced, to a greater extent, the adhesion of Escherichia coli and Listeria monocytogenes. The detachment and cell lysis of HT29-MTX monolayers in the presence of pathogens alone and co-incubated with lactobacilli or purified EPS was followed. L. monocytogenes induced the strongest cell detachment among the seven tested pathogens and this effect was prevented by addition of purified EPS-CG11. The results suggest that this EPS could be an effective macromolecule in protection of HT29-MTX cells from the pathogen-induced lysis. Regarding innate intestinal barrier, the presence of C. difficile induced the highest IL-8 production in HT29-MTX cells and this capability was reinforced by the co-incubation with Lb. paraplantarum NB1 and Lb. rhamnosus GG. However, the increase in IL-8 production was not noticed when C difficile was co-incubated with EPS-producing Lb. paraplantarum BGCG11 strain or its purified EPS-CG11 polymer, thus indicating that the polymer could hinder the contact of bacteria with the intestinal epithelium. The measurement of mucus secreted by HT29-MTX and the expression of mud, muc2, muc3B and muc5AC genes in the presence of pathogens and lactobacilli suggested that all lactobacilli strains are weak "co-adjuvants" helping some pathogens to slightly increase the secretion of mucus by HT29-MTX, while purified EPS-CG11 did not induce mucus secretion. Taking altogether, Lb. paraplantarum BGCG11 could act towards the reinforcement of the innate mucosal barrier through the synthesis of a physical-protective EPS layer which could make difficult the contact of the pathogens with the epithelial cells.
PB  - Elsevier Science Bv, Amsterdam
T2  - Food Research International
T1  - Capability of exopolysaccharide-producing Lactobacillus paraplantarum BGCG11 and its non-producing isogenic strain NB1, to counteract the effect of enteropathogens upon the epithelial cell line HT29-MTX
EP  - 207
SP  - 199
VL  - 74
DO  - 10.1016/j.foodres.2015.05.012
ER  - 

@article{
author = "Živković, Milica and Hidalgo-Cantabrana, Claudio and Kojić, Milan and Gueimonde, Miguel and Golić, Nataša and Ruas-Madiedo, Patricia",
year = "2015",
abstract = "The putative protective role of the exopolysaccharide (EPS)-producing Lactobacillus paraplantarum BGCG11, and its non-EPS-producing isogenic strain NB1, was tested upon HT29-MTX monolayers challenged with seven opportunistic pathogens. The probiotic strain Lactobacillus rhamnosus LMG18243 (GG) was used as a reference bacterium. Tested lactobacilli were able to efficiently reduce the attachment to HT29-MTX of most pathogens. Lb. paraplantarum NB1 and Lb. rhamnosus GG were more efficient reducing the adhesion of Clostridium difficile or Yersinia enterocolitica than Lb. paraplantarum BGCG11, while stain BGCG11 reduced, to a greater extent, the adhesion of Escherichia coli and Listeria monocytogenes. The detachment and cell lysis of HT29-MTX monolayers in the presence of pathogens alone and co-incubated with lactobacilli or purified EPS was followed. L. monocytogenes induced the strongest cell detachment among the seven tested pathogens and this effect was prevented by addition of purified EPS-CG11. The results suggest that this EPS could be an effective macromolecule in protection of HT29-MTX cells from the pathogen-induced lysis. Regarding innate intestinal barrier, the presence of C. difficile induced the highest IL-8 production in HT29-MTX cells and this capability was reinforced by the co-incubation with Lb. paraplantarum NB1 and Lb. rhamnosus GG. However, the increase in IL-8 production was not noticed when C difficile was co-incubated with EPS-producing Lb. paraplantarum BGCG11 strain or its purified EPS-CG11 polymer, thus indicating that the polymer could hinder the contact of bacteria with the intestinal epithelium. The measurement of mucus secreted by HT29-MTX and the expression of mud, muc2, muc3B and muc5AC genes in the presence of pathogens and lactobacilli suggested that all lactobacilli strains are weak "co-adjuvants" helping some pathogens to slightly increase the secretion of mucus by HT29-MTX, while purified EPS-CG11 did not induce mucus secretion. Taking altogether, Lb. paraplantarum BGCG11 could act towards the reinforcement of the innate mucosal barrier through the synthesis of a physical-protective EPS layer which could make difficult the contact of the pathogens with the epithelial cells.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Food Research International",
title = "Capability of exopolysaccharide-producing Lactobacillus paraplantarum BGCG11 and its non-producing isogenic strain NB1, to counteract the effect of enteropathogens upon the epithelial cell line HT29-MTX",
pages = "207-199",
volume = "74",
doi = "10.1016/j.foodres.2015.05.012"
}

Živković, M., Hidalgo-Cantabrana, C., Kojić, M., Gueimonde, M., Golić, N.,& Ruas-Madiedo, P.. (2015). Capability of exopolysaccharide-producing Lactobacillus paraplantarum BGCG11 and its non-producing isogenic strain NB1, to counteract the effect of enteropathogens upon the epithelial cell line HT29-MTX. in Food Research International
Elsevier Science Bv, Amsterdam., 74, 199-207.
https://doi.org/10.1016/j.foodres.2015.05.012

Živković M, Hidalgo-Cantabrana C, Kojić M, Gueimonde M, Golić N, Ruas-Madiedo P. Capability of exopolysaccharide-producing Lactobacillus paraplantarum BGCG11 and its non-producing isogenic strain NB1, to counteract the effect of enteropathogens upon the epithelial cell line HT29-MTX. in Food Research International. 2015;74:199-207.
doi:10.1016/j.foodres.2015.05.012 .

Živković, Milica, Hidalgo-Cantabrana, Claudio, Kojić, Milan, Gueimonde, Miguel, Golić, Nataša, Ruas-Madiedo, Patricia, "Capability of exopolysaccharide-producing Lactobacillus paraplantarum BGCG11 and its non-producing isogenic strain NB1, to counteract the effect of enteropathogens upon the epithelial cell line HT29-MTX" in Food Research International, 74 (2015):199-207,
https://doi.org/10.1016/j.foodres.2015.05.012 . .

TY  - JOUR
AU  - Hidalgo-Cantabrana, Claudio
AU  - Živković, Milica
AU  - Lopez, Patricia
AU  - Suarez, Ana
AU  - Miljković, Marija
AU  - Kojić, Milan
AU  - Margolles, Abelardo
AU  - Golić, Nataša
AU  - Ruas-Madiedo, Patricia
PY  - 2014
UR  - https://imagine.imgge.bg.ac.rs/handle/123456789/778
UR  - http://intor.torlakinstitut.com/handle/123456789/739
AB  - The effect of exopolysaccharide (EPS) producing bifidobacteria, and the EPS derived thereof, on the modulation of immune response was evaluated. Cells isolated from gut associated lymphoid tissue (GALT) and from peripheral blood mononuclear cells (PBMC) of naive rats were used. The proliferation and cytokine production of these immune cells in the presence of the three isogenic Bifidobacterium animalis subsp. lactis strains (A1, A1dOx and A1dOxR), as well as their purified polymers, were in vitro analysed. The cytokine pattern produced by immune cells isolated from GALT showed that most levels remained stable in the presence of the three strains or their corresponding polymers. However, in PBMC the UV-inactivated bacteria induced higher levels of the ratios IFN gamma/IL-17, TNF alpha/IL-10 and TNF alpha/TGF beta, and no variation in the ratio IFN gamma/IL-4. Thus, B. animalis subsp. lactis strains were able to activate blood monocytes as well as T lymphocytes towards a mild inflammatory Th1 response. Furthermore, only the EPS-A1dOxR was able to stimulate a response in a similar way than its EPS-producing bacterium. Our work supports the notion that some bifidobacterial EPS could play a role in mediating the dialog of these microorganisms with the immune system. In addition, this study emphasizes the effect that the origin of the immune cells has in results obtained; this could explain the great amount of contradiction found in literature about the immunomodulation capability of EPS from probiotic bacteria.
PB  - Elsevier Sci Ltd, Oxford
T2  - Anaerobe
T1  - Exopolysaccharide-producing Bifidobacterium animalis subsp lactis strains and their polymers elicit different responses on immune cells from blood and gut associated lymphoid tissue
EP  - 30
SP  - 24
VL  - 26
DO  - 10.1016/j.anaerobe.2014.01.003
ER  - 

@article{
author = "Hidalgo-Cantabrana, Claudio and Živković, Milica and Lopez, Patricia and Suarez, Ana and Miljković, Marija and Kojić, Milan and Margolles, Abelardo and Golić, Nataša and Ruas-Madiedo, Patricia",
year = "2014",
abstract = "The effect of exopolysaccharide (EPS) producing bifidobacteria, and the EPS derived thereof, on the modulation of immune response was evaluated. Cells isolated from gut associated lymphoid tissue (GALT) and from peripheral blood mononuclear cells (PBMC) of naive rats were used. The proliferation and cytokine production of these immune cells in the presence of the three isogenic Bifidobacterium animalis subsp. lactis strains (A1, A1dOx and A1dOxR), as well as their purified polymers, were in vitro analysed. The cytokine pattern produced by immune cells isolated from GALT showed that most levels remained stable in the presence of the three strains or their corresponding polymers. However, in PBMC the UV-inactivated bacteria induced higher levels of the ratios IFN gamma/IL-17, TNF alpha/IL-10 and TNF alpha/TGF beta, and no variation in the ratio IFN gamma/IL-4. Thus, B. animalis subsp. lactis strains were able to activate blood monocytes as well as T lymphocytes towards a mild inflammatory Th1 response. Furthermore, only the EPS-A1dOxR was able to stimulate a response in a similar way than its EPS-producing bacterium. Our work supports the notion that some bifidobacterial EPS could play a role in mediating the dialog of these microorganisms with the immune system. In addition, this study emphasizes the effect that the origin of the immune cells has in results obtained; this could explain the great amount of contradiction found in literature about the immunomodulation capability of EPS from probiotic bacteria.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Anaerobe",
title = "Exopolysaccharide-producing Bifidobacterium animalis subsp lactis strains and their polymers elicit different responses on immune cells from blood and gut associated lymphoid tissue",
pages = "30-24",
volume = "26",
doi = "10.1016/j.anaerobe.2014.01.003"
}

Hidalgo-Cantabrana, C., Živković, M., Lopez, P., Suarez, A., Miljković, M., Kojić, M., Margolles, A., Golić, N.,& Ruas-Madiedo, P.. (2014). Exopolysaccharide-producing Bifidobacterium animalis subsp lactis strains and their polymers elicit different responses on immune cells from blood and gut associated lymphoid tissue. in Anaerobe
Elsevier Sci Ltd, Oxford., 26, 24-30.
https://doi.org/10.1016/j.anaerobe.2014.01.003

Hidalgo-Cantabrana C, Živković M, Lopez P, Suarez A, Miljković M, Kojić M, Margolles A, Golić N, Ruas-Madiedo P. Exopolysaccharide-producing Bifidobacterium animalis subsp lactis strains and their polymers elicit different responses on immune cells from blood and gut associated lymphoid tissue. in Anaerobe. 2014;26:24-30.
doi:10.1016/j.anaerobe.2014.01.003 .

Hidalgo-Cantabrana, Claudio, Živković, Milica, Lopez, Patricia, Suarez, Ana, Miljković, Marija, Kojić, Milan, Margolles, Abelardo, Golić, Nataša, Ruas-Madiedo, Patricia, "Exopolysaccharide-producing Bifidobacterium animalis subsp lactis strains and their polymers elicit different responses on immune cells from blood and gut associated lymphoid tissue" in Anaerobe, 26 (2014):24-30,
https://doi.org/10.1016/j.anaerobe.2014.01.003 . .