Toward a hierarchy of mechanisms in CaMKII-mediated arrhythmia

Kevin P. Vincent, Andrew D. McCulloch, Andrew G. Edwards

Research output: Contribution to journalReview articlepeer-review

9 Scopus citations

Abstract

Calcium/calmodulin-dependent protein kinase II (CaMKII) activity has been shown to contribute to arrhythmogenesis in a remarkably broad range of cardiac pathologies. Several of these involve significant structural and electrophysiologic remodeling, whereas others are due to specific channelopathies, and are not typically associated with arrhythmogenic changes to protein expression or cellular and tissue structure. The ability of CaMKII to contribute to arrhythmia across such a broad range of phenotypes suggests one of two interpretations regarding the role of CaMKII in cardiac arrhythmia: (1) some CaMKII-dependent mechanism is a common driver of arrhythmia irrespective of the specific etiology of the disease, or (2) these different etiologies expose different mechanisms by which CaMKII is capable of promoting arrhythmia. In this review, we dissect the available mechanistic evidence to explore these two possibilities and discuss how the various molecular actions of CaMKII promote arrhythmia in different pathophysiologic contexts.

Original languageEnglish (US)
Article number110
JournalFrontiers in Pharmacology
Volume5 MAY
DOIs
StatePublished - Jan 1 2014
Externally publishedYes

Keywords

  • Afterdepolarizations
  • Arrhythmias
  • CaMKII
  • Cardiovascular diseases
  • Ryanodine receptor

ASJC Scopus subject areas

  • Pharmacology
  • Pharmacology (medical)

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