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Arrhythmogenic right ventricular cardiomyopathy (ARVC) is an inherited heart disease, associated with a high risk of sudden cardiac death. ARVC has been termed a 'disease of the desmosome' based on the fact that in many cases, it is caused by mutations in genes encoding desmosomal proteins at the specialised intercellular junctions between cardiomyocytes, the intercalated discs. Desmosomes maintain the structural integrity of the ventricular myocardium and are also implicated in signal transduction pathways. Mutated desmosomal proteins are thought to cause detachment of cardiac myocytes by the loss of cellular adhesions and also affect signalling pathways, leading to cell death and substitution by fibrofatty adipocytic tissue. However, mutations in desmosomal proteins are not the sole cause for ARVC as mutations in non-desmosomal genes were also implicated in its pathogenesis. This review will consider the pathology, genetic basis and mechanisms of pathogenesis for ARVC.

Original publication

DOI

10.1007/s12551-018-0437-0

Type

Journal article

Journal

Biophys Rev

Publication Date

08/2018

Volume

10

Pages

973 - 982

Keywords

Arrhythmogenic right ventricular cardiomyopathy, Desmocollin, Desmoglein, Desmoplakin, Desmosomes, Plakoglobin, Plakophilin, Sudden cardiac death