Synergistic effect of SRY and its direct target, WDR5, on Sox9 expression.
Synergistic effect of SRY and its direct target, WDR5, on Sox9 expression.
复制标题
SRY 及其直接靶标 WDR5 对 Sox9 表达的协同效应
DOI:
10.1371/journal.pone.0034327
复制
发表时间:
2012
期刊:
影响因子:
3.7
通讯作者:
Zhao Q
中科院分区:
文献类型:
--
作者:
Xu Z;Gao X;He Y;Ju J;Zhang M;Liu R;Wu Y;Ma C;Ma C;Lin Z;Huang X;Zhao Q
SRY is a sex-determining gene that encodes a transcription factor, which triggers male development in most mammals. The molecular mechanism of SRY action in testis determination is, however, poorly understood. In this study, we demonstrate that WDR5, which encodes a WD-40 repeat protein, is a direct target of SRY. EMSA experiments and ChIP assays showed that SRY could bind to the WDR5 gene promoter directly. Overexpression of SRY in LNCaP cells significantly increased WDR5 expression concurrent with histone H3K4 methylation on the WDR5 promoter. To specifically address whether SRY contributes to WDR5 regulation, we introduced a 4-hydroxy-tamoxifen-inducible SRY allele into LNCaP cells. Conditional SRY expression triggered enrichment of SRY on the WDR5 promoter resulting in induction of WDR5 transcription. We found that WDR5 was self regulating through a positive feedback loop. WDR5 and SRY interacted and were colocalized in cells. In addition, the interaction of WDR5 with SRY resulted in activation of Sox9 while repressing the expression of β-catenin. These results suggest that, in conjunction with SRY, WDR5 plays an important role in sex determination.
登录
查看更多内容
影响因子:
3.7
作者:
Bhandari RK;Sadler-Riggleman I;Clement TM;Skinner MK
通讯作者:
Skinner MK
影响因子:
2.7
作者:
Gori, Francesca;Friedman, Lauren G.;Demay, Marie B.
通讯作者:
Demay, Marie B.
影响因子:
14.9
作者:
LITTLEWOOD, TD;HANCOCK, DC;EVEN, GI
通讯作者:
EVEN, GI
影响因子:
64.5
作者:
Ang YS;Tsai SY;Lee DF;Monk J;Su J;Ratnakumar K;Ding J;Ge Y;Darr H;Chang B;Wang J;Rendl M;Bernstein E;Schaniel C;Lemischka IR
通讯作者:
Lemischka IR
影响因子:
--
作者:
DUBIN, RA;OSTRER, H
通讯作者:
OSTRER, H