期刊
CANCER SCIENCE
卷 109, 期 12, 页码 3840-3852出版社
WILEY
DOI: 10.1111/cas.13803
关键词
immunohistochemistry; microarray; prostate cancer; TRIM family; tripartite motif
类别
资金
- Takeda Science Foundation, Japan Agency for Medical Research and Development (P-CREATE), Japan Society for the Promotion of Science [15K15581, 15K15353, 17H04334]
Tripartite motif 36 (TRIM36) belongs to the TRIM family, most members of which are involved in ubiquitination and degradation of target proteins by functioning as E3 ubiquitin ligases. The function of TRIM36 has not been well documented, therefore, we investigated the clinical significance and function of TRIM36 in human prostate cancer (PC). Multivariate logistic regression analysis showed that TRIM36 immunoreactivity was an independent predictor of cancer-specific survival of PC patients. Gain-of-function study revealed that overexpression of TRIM36 suppressed cell proliferation and migration of LNCaP, 22Rv1, and DU145 cells. Moreover, TRIM36 knockdown using siRNA suppressed apoptosis and promoted cell proliferation and migration in LNCaP and 22Rv1 cells. Furthermore, our microarray analysis revealed that the apoptosis-related pathway was significantly upregulated by TRIM36 overexpression. The TUNEL assay showed that apoptosis promoted by docetaxel treatment was alleviated in siTRIM36-treated LNCaP and 22Rv1 cells. Taken together, these results suggest that high expression of TRIM36 is associated with favorable prognosis and that TRIM36 plays a tumor-suppressive role by inhibiting cell proliferation and migration as well as promoting apoptosis in PC.
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