Johnson M, Gomez-Galeno J, Ryan D, Okolotowicz K, McKeithan WL, Sampson KJ, Kass RS, Mercola M, Cashman JR. Human iPSC-derived cardiomyocytes and pyridyl-phenyl mexiletine analogs.
Bioorg Med Chem Lett 2021;
46:128162. [PMID:
34062251 DOI:
10.1016/j.bmcl.2021.128162]
[Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 04/16/2021] [Accepted: 05/26/2021] [Indexed: 11/15/2022]
Abstract
In the United States, approximately one million individuals are hospitalized every year for arrhythmias, making arrhythmias one of the top causes of healthcare expenditures. Mexiletine is currently used as an antiarrhythmic drug but has limitations. The purpose of this work was to use normal and Long QT syndrome Type 3 (LQTS3) patient-derived human induced pluripotent stem cell (iPSC)-derived cardiomyocytes to identify an analog of mexiletine with superior drug-like properties. Compared to racemic mexiletine, medicinal chemistry optimization of substituted racemic pyridyl phenyl mexiletine analogs resulted in a more potent sodium channel inhibitor with greater selectivity for the sodium over the potassium channel and for late over peak sodium current.
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