Inhibition of ubiquitin specific protease 17 restrains prostate cancer proliferation by regulation of epithelial-to-mesenchymal transition (EMT) via ROS production

Biomedicine & Pharmacotherapy = Biomédecine & Pharmacothérapie
Xu BaohaiFeng Yongqi

Abstract

Prostate cancer is one of the most frequently diagnosed neoplasms among men in the world. However, molecular mechanisms underlying the progression of prostate cancer are still unclear. In the study, we investigated the effects of ubiquitin specific protease 17 (USP17) on prostate cancer growth. The results indicated that USP17 expression was markedly increased in prostate cancer tissues and cell lines. Repressing USP17 expression significantly reduced the proliferation, migration and invasion of prostate cancer cells using cell counting kit-8 (CCK-8), colony formation and transwell assays. In addition, apoptosis was significantly induced by USP17 knockdown via increasing the expression of cleaved Caspase-9/-3 and poly (ADP)-ribose polymerase (PARP), as well as Cyto-c. Further, USP17 silence evidently promoted reactive oxygen species (ROS) production in prostate cancer cells. Nuclear nuclear factor-κB (NF-κB)/p65 expression and total NF-κB/p65 phosphorylation were markedly down-regulated by USP17 repression. Intriguingly, blocking ROS generation using its scavenger of N-acetyl-l-cysteine (NAC) significantly abrogated USP17 knockdown-induced apoptosis and -inhibited NF-κB/p65 signaling in vitro. Our data also showed that USP17 si...Continue Reading

Citations

Nov 24, 2020·The International Journal of Biochemistry & Cell Biology·Charles Ducker, Peter E Shaw
Aug 30, 2021·Cancer Cell International·Guang-Fei YangYan-Yang Wang

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