| Literature DB >> 11009098 |
V L Heath1, E E Murphy, C Crain, M G Tomlinson, A O'Garra.
Abstract
TGF-beta plays an important role in immune regulation in vivo and affects T cell differentiation in vitro. Here we describe how TGF-beta modulates Th2 development in vitro and investigate its mechanisms of action. TGF-beta down-regulated Th2 development of naive CD4+ Mel-14high T cells derived from the DO11.10 ovalbumin-specific TCR-transgenic mouse, and this was observed both in cultures driven with anti-CD3 and anti-CD28 and with splenic APC and antigen. TGF-beta down-regulated GATA-3 expression in developing Th2 and these cells showed a diminished IL-4-induced STAT6 activation. We found, however, that naive cells driven in Th2 conditions with TGF-beta did not show a significantly decreased STAT6 activation, suggesting that TGF-beta inhibits Th2 development via a STAT6-independent mechanism.Entities:
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Year: 2000 PMID: 11009098 DOI: 10.1002/1521-4141(200009)30:9<2639::AID-IMMU2639>3.0.CO;2-7
Source DB: PubMed Journal: Eur J Immunol ISSN: 0014-2980 Impact factor: 5.532