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.
Keywords:
Deubiquitinases, Hepatocellular carcinoma, Ubiquitin-specific peptidases, USP inhibitors, Post-translational proteins, Tumorigenesis.
Graphical Abstract
[92]
Turnbull, A.P.; Ioannidis, S.; Krajewski, W.W.; Pinto-Fernandez, A.; Heride, C.; Martin, A.C.L.; Tonkin, L.M.; Townsend, E.C.; Buker, S.M.; Lancia, D.R.; Caravella, J.A.; Toms, A.V.; Charlton, T.M.; Lahdenranta, J.; Wilker, E.; Follows, B.C.; Evans, N.J.; Stead, L.; Alli, C.; Zarayskiy, V.V.; Talbot, A.C.; Buckmelter, A.J.; Wang, M.; McKinnon, C.L.; Saab, F.; McGouran, J.F.; Century, H.; Gersch, M.; Pittman, M.S.; Marshall, C.G.; Raynham, T.M.; Simcox, M.; Stewart, L.M.D.; McLoughlin, S.B.; Escobedo, J.A.; Bair, K.W.; Dinsmore, C.J.; Hammonds, T.R.; Kim, S.; Urbé, S.; Clague, M.J.; Kessler, B.M.; Komander, D. Molecular basis of USP7 inhibition by selective small-molecule inhibitors.
Nature, 2017,
550(7677), 481-486.
[
http://dx.doi.org/10.1038/nature24451] [PMID:
29045389]
[93]
Kategaya, L.; Di Lello, P.; Rougé, L.; Pastor, R.; Clark, K.R.; Drummond, J.; Kleinheinz, T.; Lin, E.; Upton, J.P.; Prakash, S.; Heideker, J.; McCleland, M.; Ritorto, M.S.; Alessi, D.R.; Trost, M.; Bainbridge, T.W.; Kwok, M.C.M.; Ma, T.P.; Stiffler, Z.; Brasher, B.; Tang, Y.; Jaishankar, P.; Hearn, B.R.; Renslo, A.R.; Arkin, M.R.; Cohen, F.; Yu, K.; Peale, F.; Gnad, F.; Chang, M.T.; Klijn, C.; Blackwood, E.; Martin, S.E.; Forrest, W.F.; Ernst, J.A.; Ndubaku, C.; Wang, X.; Beresini, M.H.; Tsui, V.; Schwerdtfeger, C.; Blake, R.A.; Murray, J.; Maurer, T.; Wertz, I.E. USP7 small- molecule inhibitors interfere with ubiquitin binding.
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[
http://dx.doi.org/10.1038/nature24006] [PMID:
29045385]