Acute Glycogen Synthase Kinase-3 Inhibition Modulates Human Cardiac Conduction

Autor: Gang Li, Brittany D. Brumback, Lei Huang, David M. Zhang, Tiankai Yin, Catherine E. Lipovsky, Stephanie C. Hicks, Jesus Jimenez, Patrick M. Boyle, Stacey L. Rentschler
Rok vydání: 2022
Předmět:
Zdroj: JACC: Basic to Translational Science. 7:1001-1017
ISSN: 2452-302X
DOI: 10.1016/j.jacbts.2022.04.007
Popis: Glycogen synthase kinase 3 (GSK-3) inhibition has emerged as a potential therapeutic target for several diseases, including cancer. However, the role for GSK-3 regulation of human cardiac electrophysiology remains ill-defined. We demonstrate that SB216763, a GSK-3 inhibitor, can acutely reduce conduction velocity in human cardiac slices. Combined computational modeling and experimental approaches provided mechanistic insight into GSK-3 inhibition-mediated changes, revealing that decreased sodium-channel conductance and tissue conductivity may underlie the observed phenotypes. Our study demonstrates that GSK-3 inhibition in human myocardium alters electrophysiology and may predispose to an arrhythmogenic substrate; therefore, monitoring for adverse arrhythmogenic events could be considered.
Databáze: OpenAIRE