Caveolae are curved lipid raft regions rich in cholesterol and sphingolipids found abundantly in vascular endothelial cells, adipocytes, smooth muscle cells and fibroblasts. They are multifunctional organelles with roles in clathrin-independent endocytosis, cholesterol transport, mechanosensing and signal transduction. Caveolae provide an environment where multiple receptor signalling components are sequestered, clustered and compartmentalized for efficient signal transduction. Many of these receptors, including cytokine signal transducer gp130 (glycoprotein 130), are mediators of chronic inflammation during atherogenesis. Subsequently, disruption of these organelles is associated with a broad range of disease states including cardiovascular disease and cancer. Cavin-1 is an essential peripheral component of caveolae that stabilizes caveolin-1, the main structural/integral membrane protein of caveolae. Caveolin-1 is an essential regulator of eNOS (endothelial nitric oxide synthase) and its disruption leads to endothelial dysfunction which initiates a range of cardiovascular and pulmonary disorders. Although dysfunctional cytokine signalling is also a hallmark of cardiovascular disease, knowledge of caveolae-dependent cytokine signalling is lacking as is the role of cavin-1 independent of caveolae. The present review introduces caveolae, their structural components, the caveolins and cavins, their regulation by cAMP, and their potential role in cardiovascular disease.
Skip Nav Destination
Conference Article| March 20 2014
Cavin-1: caveolae-dependent signalling and cardiovascular disease
Jamie J.L. Williams;
Timothy M. Palmer
Timothy M. Palmer 1
*Institute of Cardiovascular and Medical Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow G12 8QQ, Scotland, U.K.
1To whom correspondence should be addressed (emailTim.Palmer@glasgow.ac.uk).
Search for other works by this author on:
Publisher: Portland Press Ltd
Received: December 10 2013
Online ISSN: 1470-8752
Print ISSN: 0300-5127
© The Authors Journal compilation © 2014 Biochemical Society
Jamie J.L. Williams, Timothy M. Palmer; Cavin-1: caveolae-dependent signalling and cardiovascular disease. Biochem Soc Trans 1 April 2014; 42 (2): 284–288. doi: https://doi.org/10.1042/BST20130270
Download citation file:
Don't already have an account? Register
Get Access To This Article
Buy This Article