ArticleFrontiers in cardiovascular medicine2026
Bioenergetic and metabolic aberrations in induced pluripotent stem cell-derived cardiomyocytes generated from a patient with Wolff-Parkinson-White syndrome caused a
Article in Frontiers in cardiovascular medicine, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Introduction: The Methods: Using WPW patient' iPSC-derived cardiomyocytes (iPSC-CMs) and a murine model carrying a Results: We found in mutant iPSC-CMs compared to health iPSC-CMs, reduced glycolytic function and increased maximal mitochondrial respiration associated with elevated mitochondrial content, alongside increased glycogen accumulation, lipid storage and alterations in pathways related to redox regulation. Mutated murine hearts exhibited glycogen accumulation, altered glucose and lipid metabolism, elevated triacylglycerol levels and enhanced fatty acid oxidation pathways. Lipidomic and metabolomic analyses in both models revealed disrupted pathways linked to glucose and lipid metabolism. RNA-seq identified gene expression changes associated with redox regulation, mitochondrial function and hypertrophic signaling, aligned with the observed cellular and tissue-level dysfunction. Metformin treatment reduced mitochondrial content and respiration in mutant iPSC-CMs and significantly attenuated the arrhythmias. Discussion: These findings increase our understanding of
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