Abstract
Signaling pathways in hepatocellular carcinoma are primarily mediated by the phosphorylation and ubiquitination of post-translational proteins. In mammalian cells, ubiquitin-specific proteases (USPs) account for the majority of protein deubiquitination activities. In addition to transcriptional and post-translational regulation, ubiquitination plays an important role in the regulation of key proteins. There is a possibility that altered biological processes may lead to serious human diseases, including cancer. Recent studies have revealed the role of USPs in hepatocellular carcinoma tumorigenesis. The purpose of this review is to summarize the involvement of this class of enzymes in the regulation of cell signaling in hepatocellular carcinoma and the therapeutic development of inhibitors that target USPs, which may lead to novel therapies to treat hepatocellular carcinoma.
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