Piwil2 suppresses p53 by inducing phosphorylation of signal transducer and activator of transcription 3 in tumor cells.
Piwil2 suppresses p53 by inducing phosphorylation of signal transducer and activator of transcription 3 in tumor cells.
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Piwil2 通过诱导肿瘤细胞中信号转导蛋白和转录激活剂 3 的磷酸化来抑制 P53
DOI:
10.1371/journal.pone.0030999
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发表时间:
2012
期刊:
影响因子:
3.7
通讯作者:
Ma Y
中科院分区:
文献类型:
--
作者:
Lu Y;Zhang K;Li C;Yao Y;Tao D;Liu Y;Zhang S;Ma Y
Piwi proteins have been implicated in germ cell proliferation, differentiation, germline stem cell maintenance and transposon control in germline from Drosophila to mammals. The Piwi-like2 (piwil2) gene is mainly expressed in testis or embryonic cells among normal tissues but widely expressed in tumors. However, it remains to be fully determined through which mechanism piwil2 is involved in tumorigenesis. Here we report that Human piwil2, or Hili represses the tumor suppressor P53 in human cancer cells. Immunoprecipitation analysis shows that Piwil2 can directly associate with Signal Transducer and Activator of Transcription 3 (STAT3) protein via its PAZ domain and form a Piwil2/STAT3/c-Src triple protein-protein complex. Furthermore, STAT3 is phosphorylated by c-Src and translocated to nucleus, then binds to P53 promoter and represses its transcription. The present study demonstrated that Piwil2 plays a role in anti-apoptosis in tumor cells possessing P53 as a positive regulator of STAT3 signaling pathway, providing novel sights into roles of Piwil2 in tumorigenesis.
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影响因子:
5.3
作者:
Bromberg, JF;Horvath, CM;Darnell, JE
通讯作者:
Darnell, JE
影响因子:
8
作者:
Lin, J;Tang, H;Hsieh, JT
通讯作者:
Hsieh, JT
DOI:
10.1073/pnas.92.7.3041
发表时间:
1995-03-28
影响因子:
11.1
作者:
SEIDEL, HM;MILOCCO, LH;ROSEN, J
通讯作者:
ROSEN, J
影响因子:
3.5
作者:
Lee, JH;Schütte, D;Nayernia, K
通讯作者:
Nayernia, K
影响因子:
64.5
作者:
Bromberg, JF;Wrzeszczynska, MH;Darnell, JE
通讯作者:
Darnell, JE