First Author | Ouyang W | Year | 1999 |
Journal | Proc Natl Acad Sci U S A | Volume | 96 |
Issue | 7 | Pages | 3888-93 |
PubMed ID | 10097133 | Mgi Jnum | J:54129 |
Mgi Id | MGI:1334127 | Doi | 10.1073/pnas.96.7.3888 |
Citation | Ouyang W, et al. (1999) The Ets transcription factor ERM is Th1-specific and induced by IL-12 through a Stat4-dependent pathway. Proc Natl Acad Sci U S A 96(7):3888-93 |
abstractText | Interleukin 12 (IL-12)-induced T helper 1 (Th1) development requires Stat4 activation. However, antigen-activated Th1 cells can produce interferon gamma (IFN-gamma) independently of IL-12 and Stat4 activation. Thus, in differentiated Th1 cells, factors regulated by IL-12 and Stat4 may be involved in IFN-gamma production. Using subtractive cloning, we identified ERM, an Ets transcription factor, to be a Th1-specific, IL-12-induced gene. IL-12-induction of ERM occurred in wild-type and Stat1-deficient, but not Stat4-deficient, T cells, suggesting ERM is Stat4-inducible. Retroviral expression of ERM did not restore IFN-gamma production in Stat4-deficient T cells, but augmented IFN-gamma expression in Stat4-heterozygous T cells. Ets factors frequently regulate transcription via cooperative interactions with other transcription factors, and ERM has been reported to cooperate with c-Jun. However, in the absence of other transcription factors, ERM augmented expression of an IFN-gamma reporter by only 2-fold. Thus, determining the requirement for ERM in Th1 development likely will require gene targeting. |