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Updated: Jun 8, 2026
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Generation of Ventricular-Like HiPSC-Derived Cardiomyocytes and High-Quality Cell Preparations for Calcium Handling Characterization
Published on: January 17, 2020
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Advanced physiological maturation of human iPSC-derived cardiomyocytes using an algorithm-directed optimization of
Neal I Callaghan1,2,3, Lauren J Durland4,5, Wenliang Chen6,7
1Translational Biology and Engineering Program, Ted Rogers Centre for Heart Research, Toronto, Ontario, Canada. neal.callaghan@dal.ca.
Nature Communications
|March 31, 2026
Summary
This study developed a novel culture medium to mature human induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs). The optimized medium significantly enhanced cardiomyocyte function for improved in vitro modeling and drug testing.
Area of Science:
- Cardiology
- Stem Cell Biology
- Biomedical Engineering
Background:
- Human induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs) are valuable for in vitro studies but exhibit functional immaturity.
- Current hiPSC-CMs resemble fetal or neonatal cardiomyocytes, limiting their utility for modeling adult myocardial function and disease.
- Improving cardiomyocyte maturation is crucial for advancing in vitro disease modeling and drug development.
Purpose of the Study:
- To develop and optimize a novel culture medium formulation for enhanced maturation of hiPSC-CMs.
- To improve the functional capabilities of hiPSC-CMs for more accurate in vitro modeling.
- To validate the efficacy of the new medium in both pure and co-cultured microtissue formats.
Main Methods:
- A differential evolutionary approach was employed to iteratively optimize the medium formulation, targeting metabolic functionality.
- The optimized medium was tested on hiPSC-CMs in both pure and co-cultured microtissue formats.
- Maturation was assessed through evaluation of morphology, calcium handling, electrophysiology, and metabolism, with multi-omic screening for validation.
Main Results:
- The novel medium formulation significantly improved hiPSC-CM morphology, calcium handling, electrophysiology, and metabolic function compared to reference formulations.
- Multi-omic screening validated the enhanced maturation and functional improvements.
- The optimized medium demonstrated efficacy in both pure and co-cultured microtissue formats.
Conclusions:
- A reliable workflow for generating highly functional hiPSC-CMs was established using the novel maturation medium.
- The study highlights the effectiveness of high-dimensional optimization processes in enhancing in vitro biological function.
- These mature hiPSC-CMs offer improved potential for in vitro disease modeling, drug safety, and efficacy testing.
