Abstract:
:Ubiquitin specific protease 39 (USP39) is one of the deubiquitinating enzymes without ubiquitin protease activity, which has been implicated in the progression of several cancers. However, the role of USP39 in pancreatic cancer (PC) is largely unknown. In present study, we found that USP39 expression was elevated in PC tissues than adjacent non-tumor tissues. Importantly, we demonstrated that overexpression of USP39 is closely correlated with tumor progression and poor survival in PC patients. Furthermore, high USP39 expression was observed in PC cell lines and ectopic expression of USP39 significantly enhanced in vitro cell proliferation and promoted in vivo tumor growth, whereas silencing USP39 suppressed growth of PC cells. Besides, our experimental data revealed that knockdown of USP39 induced cell apoptosis through inhibition of AKT signaling pathway in PC cells. Moreover, USP39 was a direct target of miR-133a, a microRNA that has been reported to be involved in progression of PC. Taken together, our data provide a novel PC regulatory axis that is miR-133a/USP39, the dysfunction of which drives diverse aspects of the progression of PC.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Cai J,Liu T,Huang P,Yan W,Guo C,Xiong L,Liu Adoi
10.1016/j.bbrc.2017.03.025subject
Has Abstractpub_date
2017-04-22 00:00:00pages
184-190issue
1eissn
0006-291Xissn
1090-2104pii
S0006-291X(17)30482-5journal_volume
486pub_type
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