Opposing roles of STAT4 and Dnmt3a in Th1 gene regulation.
Opposing roles of STAT4 and Dnmt3a in Th1 gene regulation.
复制标题
DOI:
10.4049/jimmunol.1203229
复制
发表时间:
2013-07-15
期刊:
影响因子:
--
通讯作者:
Kaplan MH
中科院分区:
文献类型:
--
作者:
Pham D;Yu Q;Walline CC;Muthukrishnan R;Blum JS;Kaplan MH
The Signal Transducer and Activator of Transcription factor STAT4 is a critical regulator of Th1 differentiation and inflammatory disease. Yet, how STAT4 regulates gene expression is still unclear. In this report, we define a STAT4-dependent sequence of events including H3K4 methylation, Jmjd3 association with STAT4 target loci, and a Jmjd3-dependent decrease in H3K27 trimethylation and DNA methyltransferase (Dnmt) 3a association with STAT4 target loci. Dnmt3a has an obligate role in repressing Th1 gene expression, and in Th1 cultures deficient in both STAT4 and Dnmt3a, there is recovery in the expression of a subset of Th1 genes that is sufficient to increase IFNγ production. Moreover, although STAT4-deficient mice are protected from the development of EAE, mice deficient in STAT4 and conditionally-deficient in Dnmt3a in T cells develop paralysis. Th1 genes that are de-repressed in the absence of Dnmt3a have greater induction following the ectopic expression of the Th1-associated transcription factors T-bet and Hlx1. Together, these data demonstrate that STAT4 and Dnmt3a play opposing roles in regulating Th1 gene expression, and that one mechanism for STAT4-dependent gene programming is in establishing a de-repressed genetic state susceptible to transactivation by additional fate-determining transcription factors.
登录
查看更多内容
DOI:
10.4049/jimmunol.181.8.5681
发表时间:
2008-10-15
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Mo C;Chearwae W;O'Malley JT;Adams SM;Kanakasabai S;Walline CC;Stritesky GL;Good SR;Perumal NB;Kaplan MH;Bright JJ
通讯作者:
Bright JJ
影响因子:
32.4
作者:
Nakahira, Masakiyo;Tanaka, Takashi;Grusby, Michael J.
通讯作者:
Grusby, Michael J.
DOI:
10.1084/jem.181.5.1755
发表时间:
1995-05-01
期刊:
The Journal of experimental medicine
影响因子:
--
作者:
Jacobson NG;Szabo SJ;Weber-Nordt RM;Zhong Z;Schreiber RD;Darnell JE Jr;Murphy KM
通讯作者:
Murphy KM
影响因子:
15.9
作者:
Chitnis, T;Najafian, N;Khoury, SJ
通讯作者:
Khoury, SJ
影响因子:
30.5
作者:
Afkarian, M;Sedy, JR;Murphy, KM
通讯作者:
Murphy, KM