Ribophorin II regulates breast tumor initiation and metastasis through the functional suppression of GSK3β.
Ribophorin II regulates breast tumor initiation and metastasis through the functional suppression of GSK3β.
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DOI:
10.1038/srep02474
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发表时间:
2013
影响因子:
4.6
通讯作者:
Ochiya, Takahiro
中科院分区:
文献类型:
--
作者:
Takahashi, Ryou-u;Takeshita, Fumitaka;Honma, Kimi;Ono, Masaya;Kato, Kikuya;Ochiya, Takahiro
Mutant p53 (mtp53) gain of function (GOF) contributes to various aspects of tumor progression including cancer stem cell (CSC) property acquisition. A key factor of GOF is stabilization and accumulation of mtp53. However, the precise molecular mechanism of the mtp53 oncogenic activity remains unclear. Here, we show that ribophorin II (RPN2) regulates CSC properties through the stabilization of mtp53 (R280K and del126-133) in breast cancer. RPN2 stabilized mtp53 by inactivation of glycogen synthase kinase-3β (GSK3β) which suppresses Snail, a master regulator of epithelial to mesenchymal transition. RPN2 knockdown promoted GSK3β-mediated suppression of heat shock proteins that are essential for mtp53 stabilization. Furthermore, our study reveals that high expression of RPN2 and concomitant accumulation of mtp53 were associated with cancer tissues in a small cohort of metastatic breast cancer patients. These findings elucidate a molecular mechanism for mtp53 stabilization and suggest that RPN2 could be a promising target for anti-CSC therapy.
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影响因子:
5.8
作者:
Neal CL;Yu D
通讯作者:
Yu D
DOI:
10.1158/1078-0432.ccr-09-2937
发表时间:
2010-05-01
期刊:
Clinical cancer research : an official journal of the American Association for Cancer Research
影响因子:
--
作者:
Li Y;Zhang T;Korkaya H;Liu S;Lee HF;Newman B;Yu Y;Clouthier SG;Schwartz SJ;Wicha MS;Sun D
通讯作者:
Sun D
影响因子:
12.4
作者:
通讯作者:
--
影响因子:
82.9
作者:
Li, Yang;Zou, Lihua;Li, Qiyuan;Haibe-Kains, Benjamin;Tian, Ruiyang;Li, Yan;Desmedt, Christine;Sotiriou, Christos;Szallasi, Zoltan;Iglehart, J. Dirk;Richardson, Andrea L.;Wang, Zhigang Charles
通讯作者:
Wang, Zhigang Charles
影响因子:
64.5
作者:
Gupta PB;Onder TT;Jiang G;Tao K;Kuperwasser C;Weinberg RA;Lander ES
通讯作者:
Lander ES