Title |
TNFR2 Expression on CD25hiFOXP3+ T Cells Induced upon TCR Stimulation of CD4 T Cells Identifies Maximal Cytokine-Producing Effectors
|
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Published in |
Frontiers in immunology, January 2013
|
DOI | 10.3389/fimmu.2013.00233 |
Pubmed ID | |
Authors |
Chindu Govindaraj, Karen Scalzo-Inguanti, Anja Scholzen, Shuo Li, Magdalena Plebanski |
Abstract |
In this study, we show that CD25(hi)TNFR2(+) cells can be rapidly generated in vitro from circulating CD4 lymphocytes by polyclonal stimuli anti-CD3 in the presence of anti-CD28. The in vitro induced CD25(hi)TNFR2(+) T cells express a conventional regulatory T cells phenotype FOXP3(+)CTLA4(+)CD127(lo/-), but produce effector and immunoregulatory cytokines including IL-2, IL-10, and IFN-g. These induced CD25(hi)TNFR2(+) T cells do not suppress target cell proliferation, but enhance it instead. Thus the CD25(hi)TNFR2(+) phenotype induced rapidly following CD3/28 cross linking of CD4 T cells identifies cells with maximal proliferative and effector cytokine-producing capability. The in vivo counterpart of this cell population may play an important role in immune response initiation. |
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