Development and Function of the Cardiac Conduction System in Health and Disease

Journal of Cardiovascular Development and Disease
David S Park, Glenn I Fishman

Abstract

The generation and propagation of the cardiac impulse is the central function of the cardiac conduction system (CCS). Impulse initiation occurs in nodal tissues that have high levels of automaticity, but slow conduction properties. Rapid impulse propagation is a feature of the ventricular conduction system, which is essential for synchronized contraction of the ventricular chambers. When functioning properly, the CCS produces ~2.4 billion heartbeats during a human lifetime and orchestrates the flow of cardiac impulses, designed to maximize cardiac output. Abnormal impulse initiation or propagation can result in brady- and tachy-arrhythmias, producing an array of symptoms, including syncope, heart failure or sudden cardiac death. Underlying the functional diversity of the CCS are gene regulatory networks that direct cell fate towards a nodal or a fast conduction gene program. In this review, we will discuss our current understanding of the transcriptional networks that dictate the components of the CCS, the growth factor-dependent signaling pathways that orchestrate some of these transcriptional hierarchies and the effect of aberrant transcription factor expression on mammalian conduction disease.

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Citations

Apr 21, 2018·The Journal of Experimental Biology·Martina GregorovicovaBjarke Jensen
Aug 24, 2018·Journal of Cardiovascular Development and Disease·Robert H AndersonBjarke Jensen
Mar 23, 2018·ELife·Bjarke JensenVincent M Christoffels
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Jul 17, 2020·ELife·Jan Hendrik van WeerdVincent M Christoffels
Jan 15, 2020·Cold Spring Harbor Perspectives in Biology·Vincent Christoffels, Bjarke Jensen
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Jul 2, 2021·Current Cardiology Reports·Sruthi MantriWilliam R Goodyer
Aug 27, 2021·Journal of Cardiovascular Development and Disease·Caroline ChoquetLucile Miquerol

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Methods Mentioned

BETA
acetylation
ChIP-Seq
RNA-seq

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