EGFR-mediated Beclin 1 phosphorylation in autophagy suppression, tumor progression, and tumor chemoresistance.
EGFR-mediated Beclin 1 phosphorylation in autophagy suppression, tumor progression, and tumor chemoresistance.
复制标题
DOI:
10.1016/j.cell.2013.08.015
复制
发表时间:
2013-09-12
期刊:
影响因子:
64.5
通讯作者:
Levine B
中科院分区:
文献类型:
--
作者:
Wei Y;Zou Z;Becker N;Anderson M;Sumpter R;Xiao G;Kinch L;Koduru P;Christudass CS;Veltri RW;Grishin NV;Peyton M;Minna J;Bhagat G;Levine B
Cell surface growth factor receptors couple environmental cues to the regulation of cytoplasmic homeostatic process including autophagy, and aberrant activation of such receptors is a common feature of human malignancies. Here, we defined the molecular basis by which the epidermal growth factor receptor (EGFR) tyrosine kinase regulates autophagy. Active EGFR binds to the autophagy protein Beclin 1, leading to its multisite tyrosine phosphorylation, enhanced binding to inhibitors, and decreased Beclin 1-associated Class III phosphatidylinositol-3 kinase activity. EGFR tyrosine kinase inhibitor (TKI) therapy disrupts Beclin 1 tyrosine phosphorylation and binding to its inhibitors, and restores autophagy in non-small cell lung carcinoma (NSCLC) cells with a TKI-sensitive EGFR mutation. In NSCLC tumor xenografts, the expression of a tyrosine phosphomimetic Beclin 1 mutant leads to reduced autophagy, enhanced tumor growth, tumor dedifferentiation, and resistance to TKI therapy. Thus, oncogenic receptor tyrosine kinases directly regulate the core autophagy machinery, which may contribute to tumor progression and chemoresistance.
登录
查看更多内容
影响因子:
158.5
作者:
Lynch, TJ;Bell, DW;Haber, DA
通讯作者:
Haber, DA
影响因子:
3.6
作者:
Fung, Christopher;Chen, Xing;Duvvuri, Umamaheswar
通讯作者:
Duvvuri, Umamaheswar
影响因子:
5.3
作者:
Wang, Y;Pennock, S;Wang, ZX
通讯作者:
Wang, ZX
DOI:
10.1126/science.1225967
发表时间:
2012-11-16
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Wang RC;Wei Y;An Z;Zou Z;Xiao G;Bhagat G;White M;Reichelt J;Levine B
通讯作者:
Levine B
影响因子:
21.3
作者:
Matsunaga, Kohichi;Saitoh, Tatsuya;Yoshimori, Tamotsu
通讯作者:
Yoshimori, Tamotsu