Abstract
Alteration of ubiquitin-proteasome system (UPS) mediated protein degradation has been implicated in the progression from a large subset of heart disease to congestive heart failure, rendering it extremely important to elucidate the cellular and molecular mechanism by which the UPS is regulated. Cullin-RING ligases (CRLs) represent the largest family of ubiquitin ligases crucial for UPS-dependent proteolysis. Serving as a cullin deneddylase, the COP9 signalosome (CSN) regulates the activity and assembly of CRLs. In the past several years, emerging studies have begun to unveil the role of the CSN and some of the CRLs in cardiomyocytes or the heart under physiological and pathological conditions. This review article will highlight and analyze these recent progresses and provide the author's perspective on the future directions for this research field.
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