Genetic disruption of USP9X sensitizes colorectal cancer cells to 5-fluorouracil

被引：44

作者：

Harris, Dennis R. ^{[1
]}

Mims, Alexandra ^{[2
]}

Bunz, Fred ^{[1
,2
]}

机构：

[1] Johns Hopkins Univ, Sch Med, Sidney Kimmel Comprehens Canc Ctr, Dept Radiat Oncol & Mol Radiat Sci, Baltimore, MD 21218 USA

[2] Johns Hopkins Univ, Sch Med, Sidney Kimmel Comprehens Canc Ctr, Program Cellular & Mol Med, Baltimore, MD USA

来源：

CANCER BIOLOGY & THERAPY | 2012年 / 13卷 / 13期

关键词：

USP9X; p53; chemotherapy; 5-fluorouracil; apoptosis; resistance; gene targeting; APOPTOSIS; P53; INSTABILITY; FAM/USP9X; SURVIVAL;

D O I：

10.4161/cbt.21792

中图分类号：

R73 [肿瘤学];

学科分类号：

100214 ;

摘要：

The X-linked deubiquitinase USP9X affects the stability and activity of numerous regulatory proteins that influence cell survival. Recent studies suggest that decreased USP9X expression can confer a selective advantage onto developing cancer cells and thereby promotes disease progression. To examine the effect of USP9X on the cellular responses to anticancer therapies, we derived cancer cell lines in which the USP9X locus was disrupted by homologous recombination. The resulting USP9X-deficient cancer cells exhibited increased activation of apoptotic pathways and markedly decreased clonogenic survival in response to 5-fluorouracil, a chemotherapeutic drug that is widely used for treatment of gastrointestinal malignancies. These unexpected results suggest that cancers with low USP9X expression might be specifically sensitized to some conventional therapeutic agents.

引用

页码：1319 / 1324

页数：6

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