Aggregatibacter actinomycetemcomitans GroEL protein promotes conversion of human CD4+ T cells into IFNγ IL10 producing Tbet+ Th1 cells.

One of the heat shock family protein (Hsp) expressing bacteria is the gram negative, periodontal pathogen Aggregatibacter actinomycetemcomitans (Aa). A. actinomycetemcomitans' Hsp is a 64-kDa GroEL-protein, which has been shown to influence the host cells. In this study we used recombinant A. a...

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Main Authors: Tahsin Saygılı, Semih Can Akıncılar, Bünyamin Akgül, Ayten Nalbant
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2012-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC3495765?pdf=render
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author Tahsin Saygılı
Semih Can Akıncılar
Bünyamin Akgül
Ayten Nalbant
author_facet Tahsin Saygılı
Semih Can Akıncılar
Bünyamin Akgül
Ayten Nalbant
author_sort Tahsin Saygılı
collection DOAJ
description One of the heat shock family protein (Hsp) expressing bacteria is the gram negative, periodontal pathogen Aggregatibacter actinomycetemcomitans (Aa). A. actinomycetemcomitans' Hsp is a 64-kDa GroEL-protein, which has been shown to influence the host cells. In this study we used recombinant A. actinomycetemcomitans GroEL (rAaGroEL) protein as a model antigen to study GroEL-mediated T cell immune response. Human peripheral mononuclear cells (PBMCs), when stimulated with recombinant rAaGroEL, expressed early activation marker CD69 and IL-2R (CD25). CD25 and CD69 expressions were higher in CD4+ T cells compared to CD8+ T cells. rAaGroEL-responding CD4+ T cells expressed IL-10, IFNγ and TNFα cytokines. Interestingly, there were also IL-10 and IFNγ double cytokine producing CD4+ T cells. Additionally, IFNγ expressing CD4+ T cells were also T-bet positive. Altogether the results suggest that rAaGroEL protein affects CD4+ T cells to differentiate into IFNγ IL10-secreting T-bet+ Th1 cells.
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spelling doaj.art-9943a53f7e3d43648546757f2ce992772022-12-21T19:08:35ZengPublic Library of Science (PLoS)PLoS ONE1932-62032012-01-01711e4925210.1371/journal.pone.0049252Aggregatibacter actinomycetemcomitans GroEL protein promotes conversion of human CD4+ T cells into IFNγ IL10 producing Tbet+ Th1 cells.Tahsin SaygılıSemih Can AkıncılarBünyamin AkgülAyten NalbantOne of the heat shock family protein (Hsp) expressing bacteria is the gram negative, periodontal pathogen Aggregatibacter actinomycetemcomitans (Aa). A. actinomycetemcomitans' Hsp is a 64-kDa GroEL-protein, which has been shown to influence the host cells. In this study we used recombinant A. actinomycetemcomitans GroEL (rAaGroEL) protein as a model antigen to study GroEL-mediated T cell immune response. Human peripheral mononuclear cells (PBMCs), when stimulated with recombinant rAaGroEL, expressed early activation marker CD69 and IL-2R (CD25). CD25 and CD69 expressions were higher in CD4+ T cells compared to CD8+ T cells. rAaGroEL-responding CD4+ T cells expressed IL-10, IFNγ and TNFα cytokines. Interestingly, there were also IL-10 and IFNγ double cytokine producing CD4+ T cells. Additionally, IFNγ expressing CD4+ T cells were also T-bet positive. Altogether the results suggest that rAaGroEL protein affects CD4+ T cells to differentiate into IFNγ IL10-secreting T-bet+ Th1 cells.http://europepmc.org/articles/PMC3495765?pdf=render
spellingShingle Tahsin Saygılı
Semih Can Akıncılar
Bünyamin Akgül
Ayten Nalbant
Aggregatibacter actinomycetemcomitans GroEL protein promotes conversion of human CD4+ T cells into IFNγ IL10 producing Tbet+ Th1 cells.
PLoS ONE
title Aggregatibacter actinomycetemcomitans GroEL protein promotes conversion of human CD4+ T cells into IFNγ IL10 producing Tbet+ Th1 cells.
title_full Aggregatibacter actinomycetemcomitans GroEL protein promotes conversion of human CD4+ T cells into IFNγ IL10 producing Tbet+ Th1 cells.
title_fullStr Aggregatibacter actinomycetemcomitans GroEL protein promotes conversion of human CD4+ T cells into IFNγ IL10 producing Tbet+ Th1 cells.
title_full_unstemmed Aggregatibacter actinomycetemcomitans GroEL protein promotes conversion of human CD4+ T cells into IFNγ IL10 producing Tbet+ Th1 cells.
title_short Aggregatibacter actinomycetemcomitans GroEL protein promotes conversion of human CD4+ T cells into IFNγ IL10 producing Tbet+ Th1 cells.
title_sort aggregatibacter actinomycetemcomitans groel protein promotes conversion of human cd4 t cells into ifnγ il10 producing tbet th1 cells
url http://europepmc.org/articles/PMC3495765?pdf=render
work_keys_str_mv AT tahsinsaygılı aggregatibacteractinomycetemcomitansgroelproteinpromotesconversionofhumancd4tcellsintoifngil10producingtbetth1cells
AT semihcanakıncılar aggregatibacteractinomycetemcomitansgroelproteinpromotesconversionofhumancd4tcellsintoifngil10producingtbetth1cells
AT bunyaminakgul aggregatibacteractinomycetemcomitansgroelproteinpromotesconversionofhumancd4tcellsintoifngil10producingtbetth1cells
AT aytennalbant aggregatibacteractinomycetemcomitansgroelproteinpromotesconversionofhumancd4tcellsintoifngil10producingtbetth1cells