Neuropeptide Y (NPY) has been reported to be a potent anti-inflammatory peptide with ability to directly modulate activity of granulocytes and macrophages. The present study aimed to correlate the effects of NPY in vivo on lipopolysaccharide-induced air-pouch exudates cells and in vitro on peripheral blood leukocytes functions. The role of different Y receptors was examined using NPY-related peptides and antagonists with diverse subtype specificity and selectivity for Y receptors. Y1, Y2 and Y5 receptors were detected on air-pouch exudates cells (flow cytometry) and peripheral blood granulocytes (immunocito-chemistry). NPY in vivo reduced inflammatory cells accumulation into the air pouch, and decreased their adherence and phagocytic capacity via Y2/Y5 and Y1/Y2 receptors, respectively. Quite the opposite, NPY in vitro potentiated adhesiveness and phagocytosis of peripheral blood granulocytes and monocytes by activating Y1 receptor. The differences between in vivo and in vitro effects ...of NPY on rat inflammatory cells functions are mostly due to dipeptidyl peptidase 4 activity. In addition, suppressive effect of NPY in vivo is highly dependent on the local microenvironment, peptide truncation and specific Y receptors interplay. (C) 2011 Elsevier Inc. All rights reserved.
Кључне речи:
Granulocytes / Inflammation / Monocytes / Neuropeptide Y / Rat / Y receptor subtypes
TY - JOUR
AU - Mitić, Katarina
AU - Stanojević, Stanislava
AU - Kuštrimović, Nataša
AU - Vujić, Vesna
AU - Dimitrijević, Mirjana
PY - 2011
UR - http://intor.torlakinstitut.com/handle/123456789/327
AB - Neuropeptide Y (NPY) has been reported to be a potent anti-inflammatory peptide with ability to directly modulate activity of granulocytes and macrophages. The present study aimed to correlate the effects of NPY in vivo on lipopolysaccharide-induced air-pouch exudates cells and in vitro on peripheral blood leukocytes functions. The role of different Y receptors was examined using NPY-related peptides and antagonists with diverse subtype specificity and selectivity for Y receptors. Y1, Y2 and Y5 receptors were detected on air-pouch exudates cells (flow cytometry) and peripheral blood granulocytes (immunocito-chemistry). NPY in vivo reduced inflammatory cells accumulation into the air pouch, and decreased their adherence and phagocytic capacity via Y2/Y5 and Y1/Y2 receptors, respectively. Quite the opposite, NPY in vitro potentiated adhesiveness and phagocytosis of peripheral blood granulocytes and monocytes by activating Y1 receptor. The differences between in vivo and in vitro effects of NPY on rat inflammatory cells functions are mostly due to dipeptidyl peptidase 4 activity. In addition, suppressive effect of NPY in vivo is highly dependent on the local microenvironment, peptide truncation and specific Y receptors interplay. (C) 2011 Elsevier Inc. All rights reserved.
PB - Elsevier Science Inc, New York
T2 - Peptides
T1 - Neuropeptide Y modulates functions of inflammatory cells in the rat: Distinct role for Y1, Y2 and Y5 receptors
EP - 1633
IS - 8
SP - 1626
VL - 32
DO - 10.1016/j.peptides.2011.06.007
UR - conv_270
ER -
@article{
author = "Mitić, Katarina and Stanojević, Stanislava and Kuštrimović, Nataša and Vujić, Vesna and Dimitrijević, Mirjana",
year = "2011",
abstract = "Neuropeptide Y (NPY) has been reported to be a potent anti-inflammatory peptide with ability to directly modulate activity of granulocytes and macrophages. The present study aimed to correlate the effects of NPY in vivo on lipopolysaccharide-induced air-pouch exudates cells and in vitro on peripheral blood leukocytes functions. The role of different Y receptors was examined using NPY-related peptides and antagonists with diverse subtype specificity and selectivity for Y receptors. Y1, Y2 and Y5 receptors were detected on air-pouch exudates cells (flow cytometry) and peripheral blood granulocytes (immunocito-chemistry). NPY in vivo reduced inflammatory cells accumulation into the air pouch, and decreased their adherence and phagocytic capacity via Y2/Y5 and Y1/Y2 receptors, respectively. Quite the opposite, NPY in vitro potentiated adhesiveness and phagocytosis of peripheral blood granulocytes and monocytes by activating Y1 receptor. The differences between in vivo and in vitro effects of NPY on rat inflammatory cells functions are mostly due to dipeptidyl peptidase 4 activity. In addition, suppressive effect of NPY in vivo is highly dependent on the local microenvironment, peptide truncation and specific Y receptors interplay. (C) 2011 Elsevier Inc. All rights reserved.",
publisher = "Elsevier Science Inc, New York",
journal = "Peptides",
title = "Neuropeptide Y modulates functions of inflammatory cells in the rat: Distinct role for Y1, Y2 and Y5 receptors",
pages = "1633-1626",
number = "8",
volume = "32",
doi = "10.1016/j.peptides.2011.06.007",
url = "conv_270"
}
Mitić, K., Stanojević, S., Kuštrimović, N., Vujić, V.,& Dimitrijević, M.. (2011). Neuropeptide Y modulates functions of inflammatory cells in the rat: Distinct role for Y1, Y2 and Y5 receptors. in Peptides
Elsevier Science Inc, New York., 32(8), 1626-1633.
https://doi.org/10.1016/j.peptides.2011.06.007
conv_270
Mitić K, Stanojević S, Kuštrimović N, Vujić V, Dimitrijević M. Neuropeptide Y modulates functions of inflammatory cells in the rat: Distinct role for Y1, Y2 and Y5 receptors. in Peptides. 2011;32(8):1626-1633.
doi:10.1016/j.peptides.2011.06.007
conv_270 .
Mitić, Katarina, Stanojević, Stanislava, Kuštrimović, Nataša, Vujić, Vesna, Dimitrijević, Mirjana, "Neuropeptide Y modulates functions of inflammatory cells in the rat: Distinct role for Y1, Y2 and Y5 receptors" in Peptides, 32, no. 8 (2011):1626-1633,
https://doi.org/10.1016/j.peptides.2011.06.007 .,
conv_270 .
