USP26 promotes anaplastic thyroid cancer progression by stabilizing TAZ

被引:18
|
作者
Tang, Jianing [1 ]
Luo, Yongwen [2 ]
Xiao, Liang [1 ]
机构
[1] Cent South Univ, Xiangya Hosp, Clin Res Ctr Breast Canc Control & Prevent Hunan, Dept Liver Surg, Changsha, Peoples R China
[2] Wuhan Univ, Dept Urol, Zhongnan Hosp, Wuhan, Peoples R China
关键词
HIPPO PATHWAY; DEUBIQUITINATION; FAMILY;
D O I
10.1038/s41419-022-04781-1
中图分类号
Q2 [细胞生物学];
学科分类号
071009 ; 090102 ;
摘要
Anaplastic thyroid cancer (ATC) is one of the most lethal and aggressive human malignancies, with no effective treatment currently available. The Hippo tumor suppressor pathway is highly conserved in mammals and plays an important role in carcinogenesis. TAZ is one of major key effectors of the Hippo pathway. However, the mechanism supporting abnormal TAZ expression in ATC remains to be characterized. In the present study, we identified USP26, a DUB enzyme in the ubiquitin-specific proteases family, as a bona fide deubiquitylase of TAZ in ATC. USP26 was shown to interact with, deubiquitylate, and stabilize TAZ in a deubiquitylation activity-dependent manner. USP26 depletion significantly decreased ATC cell proliferation, migration, and invasion. The effects induced by USP26 depletion could be rescued by further TAZ overexpression. Depletion of USP26 decreased the TAZ protein level and the expression of TAZ/TEAD target genes in ATC, including CTGF, ANKRD1, and CYR61. In general, our findings establish a previously undocumented catalytic role for USP26 as a deubiquitinating enzyme of TAZ and provides a possible target for the therapy of ATC.
引用
收藏
页数:9
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