The role of K63-linked polyubiquitination in cardiac hypertrophy.

Ubiquitination, also known as ubiquitylation, is a vital post-translational modification of proteins that play a crucial role in the multiple biological processes including cell growth, proliferation and apoptosis. K63-linked ubiquitination is one of the vital post-translational modifications of proteins that are involved in the activation of protein kinases and protein trafficking during cell survival and proliferation. It also contributes to the development of various disorders including cancer, neurodegeneration and cardiac hypertrophy. In this review, we summarize the role of K63-linked ubiquitination signalling in protein kinase activation and its implications in cardiac hypertrophy. We have also provided our perspectives on therapeutically targeting K63-linked ubiquitination in downstream effector molecules of growth factor receptors for the treatment of cardiac hypertrophy.