HSF1 phosphorylation establishes an active chromatin state via the TRRAP-TIP60 complex and promotes tumorigenesis.
HSF1 phosphorylation establishes an active chromatin state via the TRRAP-TIP60 complex and promotes tumorigenesis.
复制标题
DOI:
10.1038/s41467-022-32034-4
复制
发表时间:
2022-07-29
影响因子:
16.6
通讯作者:
中科院分区:
文献类型:
--
作者:
Transcriptional regulation by RNA polymerase II is associated with changes in chromatin structure. Activated and promoter-bound heat shock transcription factor 1 (HSF1) recruits transcriptional co-activators, including histone-modifying enzymes; however, the mechanisms underlying chromatin opening remain unclear. Here, we demonstrate that HSF1 recruits the TRRAP-TIP60 acetyltransferase complex in HSP72 promoter during heat shock in a manner dependent on phosphorylation of HSF1-S419. TRIM33, a bromodomain-containing ubiquitin ligase, is then recruited to the promoter by interactions with HSF1 and a TIP60-mediated acetylation mark, and cooperates with the related factor TRIM24 for mono-ubiquitination of histone H2B on K120. These changes in histone modifications are triggered by phosphorylation of HSF1-S419 via PLK1, and stabilize the HSF1-transcription complex in HSP72 promoter. Furthermore, HSF1-S419 phosphorylation is constitutively enhanced in and promotes proliferation of melanoma cells. Our results provide mechanisms for HSF1 phosphorylation-dependent establishment of an active chromatin status, which is important for tumorigenesis. Here the authors show phosphorylation of heat shock factor 1 (HSF1) at S419 via the chromatin-bound kinase PLK1, promotes HSF1 recruitment of histone acetyltransferases and histone acetylation reader proteins TRIM33 and TRIM24, which actually also execute histone H2BK120 mono-ubiquitination at target genes. Furthermore, HSF1 phosphorylation has an impact on melanoma cell proliferation.
登录
查看更多内容
影响因子:
3.7
作者:
Chou SD;Prince T;Gong J;Calderwood SK
通讯作者:
Calderwood SK
影响因子:
64.5
作者:
Dai, Chengkai;Whitesell, Luke;Lindquist, Susan
通讯作者:
Lindquist, Susan
DOI:
10.1038/nrm.2017.73
发表时间:
2018-01
期刊:
Nature reviews. Molecular cell biology
影响因子:
--
作者:
Gomez-Pastor R;Burchfiel ET;Thiele DJ
通讯作者:
Thiele DJ
影响因子:
7.7
作者:
Frank, SR;Parisi, T;Amati, B
通讯作者:
Amati, B
影响因子:
11.4
作者:
Ardehali, M. Behfar;Mei, Amanda;Kusch, Thomas
通讯作者:
Kusch, Thomas