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DOI: 10.1161/circulationaha.108.821082
¤ OpenAccess: Bronze
This work has “Bronze” OA status. This means it is free to read on the publisher landing page, but without any identifiable license.

Drug-Sensitized Zebrafish Screen Identifies Multiple Genes, Including <i>GINS3</i> , as Regulators of Myocardial Repolarization

David J. Milan,Albert M. Kim,Jeffrey Winterfield,Ian Jones,Arne Pfeufer,Serena Sanna,Dan E. Arking,Adam Amsterdam,Khaled Sabeh,John D. Mably,David S. Rosenbaum,Randall T. Peterson,Aravinda Chakravarti,Stefan Kääb,Dan M. Roden,Calum A. MacRae

Repolarization
Zebrafish
QT interval
2009
Cardiac repolarization, the process by which cardiomyocytes return to their resting potential after each beat, is a highly regulated process that is critical for heart rhythm stability. Perturbations of cardiac repolarization increase the risk for life-threatening arrhythmias and sudden cardiac death. Although genetic studies of familial long-QT syndromes have uncovered several key genes in cardiac repolarization, the major heritable contribution to this trait remains unexplained. Identification of additional genes may lead to a better understanding of the underlying biology, aid in identification of patients at risk for sudden death, and potentially enable new treatments for susceptible individuals.We extended and refined a zebrafish model of cardiac repolarization by using fluorescent reporters of transmembrane potential. We then conducted a drug-sensitized genetic screen in zebrafish, identifying 15 genes, including GINS3, that affect cardiac repolarization. Testing these genes for human relevance in 2 concurrently completed genome-wide association studies revealed that the human GINS3 ortholog is located in the 16q21 locus, which is strongly associated with QT interval.This sensitized zebrafish screen identified 15 novel myocardial repolarization genes. Among these genes is GINS3, the human ortholog of which is a major locus in 2 concurrent human genome-wide association studies of QT interval. These results reveal a novel network of genes that regulate cardiac repolarization.
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    Drug-Sensitized Zebrafish Screen Identifies Multiple Genes, Including <i>GINS3</i> , as Regulators of Myocardial Repolarization” is a paper by David J. Milan Albert M. Kim Jeffrey Winterfield Ian Jones Arne Pfeufer Serena Sanna Dan E. Arking Adam Amsterdam Khaled Sabeh John D. Mably David S. Rosenbaum Randall T. Peterson Aravinda Chakravarti Stefan Kääb Dan M. Roden Calum A. MacRae published in 2009. It has an Open Access status of “bronze”. You can read and download a PDF Full Text of this paper here.