Tumour suppressor TRIM33 targets nuclear β-catenin degradation.
Tumour suppressor TRIM33 targets nuclear β-catenin degradation.
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DOI:
10.1038/ncomms7156
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发表时间:
2015-02-02
影响因子:
16.6
通讯作者:
Huang, Suyun
中科院分区:
文献类型:
--
作者:
Xue, Jianfei;Chen, Yaohui;Wu, Yamei;Wang, Zhongyong;Zhou, Aidong;Zhang, Sicong;Lin, Kangyu;Aldape, Kenneth;Majumder, Sadhan;Lu, Zhimin;Huang, Suyun
Aberrant activation of β-catenin in the nucleus has been implicated in a variety of human cancers but the fate of nuclear β-catenin is unknown. Here we demonstrate that tripartite motif-containing protein 33 (TRIM33), acting as an E3 ubiquitin ligase, reduces the abundance of nuclear β-catenin protein. TRIM33-mediated β-catenin is destabilized and is GSK-3β or β-TrCP independent. TRIM33 interacts with and ubiquitylates nuclear β-catenin. Moreover, protein kinase Cδ, which directly phosphorylates β-catenin at Ser715, is required for the TRIM33–β-catenin interaction. The function of TRIM33 in suppressing tumour cell proliferation and brain tumour development depends on TRIM33-promoted β-catenin degradation. In human glioblastoma specimens, endogenous TRIM33 levels are inversely correlated with β-catenin. In summary, our findings identify TRIM33 as a tumour suppressor that can abolish tumour cell proliferation and tumorigenesis by degrading nuclear β-catenin. This work suggests a new therapeutic strategy against human cancers caused by aberrant activation of β-catenin.
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影响因子:
64.5
作者:
Bai X;Kim J;Yang Z;Jurynec MJ;Akie TE;Lee J;LeBlanc J;Sessa A;Jiang H;DiBiase A;Zhou Y;Grunwald DJ;Lin S;Cantor AB;Orkin SH;Zon LI
通讯作者:
Zon LI
影响因子:
9.8
作者:
Ransom DG;Bahary N;Niss K;Traver D;Burns C;Trede NS;Paffett-Lugassy N;Saganic WJ;Lim CA;Hersey C;Zhou Y;Barut BA;Lin S;Kingsley PD;Palis J;Orkin SH;Zon LI
通讯作者:
Zon LI
DOI:
10.4161/cc.25369
发表时间:
2013-07-15
期刊:
Cell cycle (Georgetown, Tex.)
影响因子:
--
作者:
Metzger T;Kleiss C;Sumara I
通讯作者:
Sumara I
DOI:
10.1073/pnas.96.11.6273
发表时间:
1999-05-25
影响因子:
11.1
作者:
Liu, CM;Kato, Y;He, X
通讯作者:
He, X
影响因子:
4.8
作者:
Song, DH;Dominguez, I;Seldin, DC
通讯作者:
Seldin, DC