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Role of Non-Myocyte Gap Junctions and Connexin Hemichannels in Cardiovascular Health and Disease: Novel Therapeutic Targets?

Johnson, Robert and Camelliti, Patrizia (2018) Role of Non-Myocyte Gap Junctions and Connexin Hemichannels in Cardiovascular Health and Disease: Novel Therapeutic Targets? International Journal of Molecular Sciences, 19 (3), 866.

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Abstract

The heart is a complex organ composed of multiple cell types, including cardiomyocytes and different non-myocyte populations, all working closely together to determine the hearts properties and maintain normal cardiac function. Connexins are abundantly expressed proteins that form plasma membrane hemichannels and gap junctions between cells. Gap junctions are intracellular channels that allow for communication between cells, and in the heart they play a crucial role in cardiac conduction by coupling adjacent cardiomyocytes. Connexins are expressed in both cardiomyocytes and non-myocytes, including cardiac fibroblasts, endothelial cells, and macrophages. Non-myocytes are the largest population of cells in the heart, and therefore it is important to consider what roles connexins, hemichannels, and gap junctions play in these cell types. The aim of this review is to provide insight into connexin-based signalling in non-myocytes during health and disease, and highlight how targeting these proteins could lead to the development of novel therapies. We conclude that connexins in non-myocytes contribute to arrhythmias and adverse ventricular remodelling following myocardial infarction, and are associated with the initiation and development of atherosclerosis. Therefore, therapeutic interventions targeting these connexins represent an exciting new research avenue with great potential.

Item Type: Article
Divisions : Faculty of Health and Medical Sciences > School of Biosciences and Medicine
Authors :
NameEmailORCID
Johnson, Robertr.d.johnson@surrey.ac.uk
Camelliti, Patriziap.camelliti@surrey.ac.uk
Date : 15 March 2018
Identification Number : 10.3390/ijms19030866
Copyright Disclaimer : © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
Uncontrolled Keywords : connexin; hemichannel; gap junction; cardiovascular disease; fibroblast; endothelial; macrophage; non-myocyte; therapeutic; inflammation
Additional Information : This article belongs to the Special Issue Involvement of Connexin Hemichannels in the Inflammatory Response of Chronic Diseases
Depositing User : Melanie Hughes
Date Deposited : 13 Apr 2018 08:23
Last Modified : 13 Apr 2018 08:23
URI: http://epubs.surrey.ac.uk/id/eprint/846214

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