|
1
|
Xu Q, Huang X, Meng Z, Li Y, Zhong R, Li X, Cyganek L, El-Battrawy I, Akin I, Zhou X, Lan H. Antiarrhythmic Effects of Vernakalant in Human-Induced Pluripotent Stem Cell-Derived Cardiomyocytes from a Patient with Short QT Syndrome Type 1. J Cardiovasc Dev Dis 2022; 9:jcdd9040112. [PMID: 35448088 PMCID: PMC9032933 DOI: 10.3390/jcdd9040112] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Revised: 04/06/2022] [Accepted: 04/07/2022] [Indexed: 12/24/2022] Open
Abstract
(1) Background: Short QT syndrome (SQTS) may result in sudden cardiac death. So far, no drugs, except quinidine, have been demonstrated to be effective in some patients with SQTS type 1 (SQTS1). This study was designed to examine the potential effectiveness of vernakalant for treating SQTS1 patients, using human-induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs) from a patient with SQTS1. (2) Methods: Patch clamp and calcium imaging techniques were used to examine the drug effects. (3) Results: Vernakalant prolonged the action potential duration (APD) in hiPSC-CMs from a SQTS1-patient (SQTS1-hiPSC-CMs). In spontaneously beating SQTS1-hiPSC-CMs, vernakalant reduced the arrhythmia-like events induced by carbachol plus epinephrine. Vernakalant failed to suppress the hERG channel currents but reduced the outward small-conductance calcium-activated potassium channel current. In addition, it enhanced Na/Ca exchanger currents and late sodium currents, in agreement with its APD-prolonging effect. (4) Conclusions: The results demonstrated that vernakalant can prolong APD and reduce arrhythmia-like events in SQTS1-hiPSC-CMs and may be a candidate drug for treating arrhythmias in SQTS1-patients.
Collapse
Affiliation(s)
- Qiang Xu
- School of Basic Medical Science, Southwest Medical University, Luzhou 646000, China;
- First Department of Medicine, Faculty of Medicine, University Medical Centre Mannheim (UMM), University of Heidelberg, 68167 Mannheim, Germany; (Z.M.); (Y.L.); (R.Z.); (X.L.); (I.E.-B.); (I.A.)
| | - Xuemei Huang
- Key Laboratory of Medical Electrophysiology, Ministry of Education & Medical Electrophysiological Key Laboratory of Sichuan Province, Collaborative Innovation Center for Prevention of Cardiovascular Diseases, Institute of Cardiovascular Research, Southwest Medical University, Luzhou 646000, China;
| | - Zenghui Meng
- First Department of Medicine, Faculty of Medicine, University Medical Centre Mannheim (UMM), University of Heidelberg, 68167 Mannheim, Germany; (Z.M.); (Y.L.); (R.Z.); (X.L.); (I.E.-B.); (I.A.)
| | - Yingrui Li
- First Department of Medicine, Faculty of Medicine, University Medical Centre Mannheim (UMM), University of Heidelberg, 68167 Mannheim, Germany; (Z.M.); (Y.L.); (R.Z.); (X.L.); (I.E.-B.); (I.A.)
| | - Rujia Zhong
- First Department of Medicine, Faculty of Medicine, University Medical Centre Mannheim (UMM), University of Heidelberg, 68167 Mannheim, Germany; (Z.M.); (Y.L.); (R.Z.); (X.L.); (I.E.-B.); (I.A.)
| | - Xin Li
- First Department of Medicine, Faculty of Medicine, University Medical Centre Mannheim (UMM), University of Heidelberg, 68167 Mannheim, Germany; (Z.M.); (Y.L.); (R.Z.); (X.L.); (I.E.-B.); (I.A.)
| | - Lukas Cyganek
- Stem Cell Unit, Clinic for Cardiology and Pneumology, University Medical Center Göttingen, 37075 Göttingen, Germany;
- DZHK (German Center for Cardiovascular Research), Partner Site, 37073 Göttingen, Germany
| | - Ibrahim El-Battrawy
- First Department of Medicine, Faculty of Medicine, University Medical Centre Mannheim (UMM), University of Heidelberg, 68167 Mannheim, Germany; (Z.M.); (Y.L.); (R.Z.); (X.L.); (I.E.-B.); (I.A.)
- DZHK (German Center for Cardiovascular Research), Partner Site, 68229 Heidelberg-Mannheim, Germany
| | - Ibrahim Akin
- First Department of Medicine, Faculty of Medicine, University Medical Centre Mannheim (UMM), University of Heidelberg, 68167 Mannheim, Germany; (Z.M.); (Y.L.); (R.Z.); (X.L.); (I.E.-B.); (I.A.)
- DZHK (German Center for Cardiovascular Research), Partner Site, 68229 Heidelberg-Mannheim, Germany
| | - Xiaobo Zhou
- First Department of Medicine, Faculty of Medicine, University Medical Centre Mannheim (UMM), University of Heidelberg, 68167 Mannheim, Germany; (Z.M.); (Y.L.); (R.Z.); (X.L.); (I.E.-B.); (I.A.)
- Key Laboratory of Medical Electrophysiology, Ministry of Education & Medical Electrophysiological Key Laboratory of Sichuan Province, Collaborative Innovation Center for Prevention of Cardiovascular Diseases, Institute of Cardiovascular Research, Southwest Medical University, Luzhou 646000, China;
- DZHK (German Center for Cardiovascular Research), Partner Site, 68229 Heidelberg-Mannheim, Germany
- Correspondence: (X.Z.); (H.L.)
| | - Huan Lan
- Key Laboratory of Medical Electrophysiology, Ministry of Education & Medical Electrophysiological Key Laboratory of Sichuan Province, Collaborative Innovation Center for Prevention of Cardiovascular Diseases, Institute of Cardiovascular Research, Southwest Medical University, Luzhou 646000, China;
- Correspondence: (X.Z.); (H.L.)
| |
Collapse
|