| Autor: |
Heath VL; Department of Immunology, DNAX Research Institute, Palo Alto, USA., Murphy EE, Crain C, Tomlinson MG, O'Garra A |
| Jazyk: |
angličtina |
| Zdroj: |
European journal of immunology [Eur J Immunol] 2000 Sep; Vol. 30 (9), pp. 2639-49. |
| DOI: |
10.1002/1521-4141(200009)30:9<2639::AID-IMMU2639>3.0.CO;2-7 |
| Abstrakt: |
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. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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