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http://purl.uniprot.org/citations/31910160http://www.w3.org/1999/02/22-rdf-syntax-ns#typehttp://purl.uniprot.org/core/Journal_Citation
http://purl.uniprot.org/citations/31910160http://www.w3.org/2000/01/rdf-schema#comment"Aberrant expression of the cardiac gap junction protein connexin-43 (Cx43) has been suggested as playing a role in the development of cardiac disease in the mdx mouse model of Duchenne muscular dystrophy (DMD); however, a mechanistic understanding of this association is lacking. Here, we identified a reduction of phosphorylation of Cx43 serines S325/S328/S330 in human and mouse DMD hearts. We hypothesized that hypophosphorylation of Cx43 serine-triplet triggers pathological Cx43 redistribution to the lateral sides of cardiomyocytes (remodeling). Therefore, we generated knockin mdx mice in which the Cx43 serine-triplet was replaced with either phospho-mimicking glutamic acids (mdxS3E) or nonphosphorylatable alanines (mdxS3A). The mdxS3E, but not mdxS3A, mice were resistant to Cx43 remodeling, with a corresponding reduction of Cx43 hemichannel activity. MdxS3E cardiomyocytes displayed improved intracellular Ca2+ signaling and a reduction of NADPH oxidase 2 (NOX2)/ROS production. Furthermore, mdxS3E mice were protected against inducible arrhythmias, related lethality, and the development of cardiomyopathy. Inhibition of microtubule polymerization by colchicine reduced both NOX2/ROS and oxidized CaMKII, increased S325/S328/S330 phosphorylation, and prevented Cx43 remodeling in mdx hearts. Together, these results demonstrate a mechanism of dystrophic Cx43 remodeling and suggest that targeting Cx43 may be a therapeutic strategy for preventing heart dysfunction and arrhythmias in DMD patients."xsd:string
http://purl.uniprot.org/citations/31910160http://purl.org/dc/terms/identifier"doi:10.1172/jci128190"xsd:string
http://purl.uniprot.org/citations/31910160http://purl.uniprot.org/core/author"Li H."xsd:string
http://purl.uniprot.org/citations/31910160http://purl.uniprot.org/core/author"Liu T."xsd:string
http://purl.uniprot.org/citations/31910160http://purl.uniprot.org/core/author"Zhao Q."xsd:string
http://purl.uniprot.org/citations/31910160http://purl.uniprot.org/core/author"Gonzalez J.P."xsd:string
http://purl.uniprot.org/citations/31910160http://purl.uniprot.org/core/author"Xie L.H."xsd:string
http://purl.uniprot.org/citations/31910160http://purl.uniprot.org/core/author"Contreras J.E."xsd:string
http://purl.uniprot.org/citations/31910160http://purl.uniprot.org/core/author"Lampe P.D."xsd:string
http://purl.uniprot.org/citations/31910160http://purl.uniprot.org/core/author"Fishman G.I."xsd:string
http://purl.uniprot.org/citations/31910160http://purl.uniprot.org/core/author"Wehrens X.H."xsd:string
http://purl.uniprot.org/citations/31910160http://purl.uniprot.org/core/author"Fraidenraich D."xsd:string
http://purl.uniprot.org/citations/31910160http://purl.uniprot.org/core/author"Shirokova N."xsd:string
http://purl.uniprot.org/citations/31910160http://purl.uniprot.org/core/author"Himelman E."xsd:string
http://purl.uniprot.org/citations/31910160http://purl.uniprot.org/core/author"Lillo M.A."xsd:string
http://purl.uniprot.org/citations/31910160http://purl.uniprot.org/core/author"Nouet J."xsd:string
http://purl.uniprot.org/citations/31910160http://purl.uniprot.org/core/date"2020"xsd:gYear
http://purl.uniprot.org/citations/31910160http://purl.uniprot.org/core/name"J Clin Invest"xsd:string
http://purl.uniprot.org/citations/31910160http://purl.uniprot.org/core/pages"1713-1727"xsd:string
http://purl.uniprot.org/citations/31910160http://purl.uniprot.org/core/title"Prevention of connexin-43 remodeling protects against Duchenne muscular dystrophy cardiomyopathy."xsd:string
http://purl.uniprot.org/citations/31910160http://purl.uniprot.org/core/volume"130"xsd:string
http://purl.uniprot.org/citations/31910160http://www.w3.org/2004/02/skos/core#exactMatchhttp://purl.uniprot.org/pubmed/31910160
http://purl.uniprot.org/citations/31910160http://xmlns.com/foaf/0.1/primaryTopicOfhttps://pubmed.ncbi.nlm.nih.gov/31910160
http://purl.uniprot.org/uniprot/#_A0A023ZT56-mappedCitation-31910160http://www.w3.org/1999/02/22-rdf-syntax-ns#objecthttp://purl.uniprot.org/citations/31910160