Cited by 667Cardiomyopathy and Myosin StudiesCardiac electrophysiology and arrhythmiasPluripotent Stem Cells Research

Abnormal calcium handling properties underlie familial hypertrophic cardiomyopathy pathology in patient-specific induced pluripotent stem cells

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Lan, Feng, Lee, Andrew S., Liang, Ping, Sanchez-Freire, Veronica, Nguyen, Patricia K., Wang, Li, Han, Leng, Yen, Michelle +16 more·2013·Cell Stem Cell

Abstract

Familial hypertrophic cardiomyopathy (HCM) is a prevalent hereditary cardiac disorder linked to arrhythmia and sudden cardiac death. While the causes of HCM have been identified as genetic mutations in the cardiac sarcomere, the pathways by which sarcomeric mutations engender myocyte hypertrophy and electrophysiological abnormalities are not understood. To elucidate the mechanisms underlying HCM development, we generated patient-specific induced pluripotent stem cell cardiomyocytes (iPSC-CMs) from a ten-member family cohort carrying a hereditary HCM missense mutation (Arg663His) in the MYH7 gene. Diseased iPSC-CMs recapitulated numerous aspects of the HCM phenotype including cellular enlargement and contractile arrhythmia at the single-cell level. Calcium (Ca(2+)) imaging indicated dysregulation of Ca(2+) cycling and elevation in intracellular Ca(2+) ([Ca(2+)](i)) are central mechanisms for disease pathogenesis. Pharmacological restoration of Ca(2+) homeostasis prevented development of hypertrophy and electrophysiological irregularities. We anticipate that these findings will help elucidate the mechanisms underlying HCM development and identify novel therapies for the disease.

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Crossref · 10.1016/j.stem.2012.10.010

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  • Physiological and genetic differences between humans and animals lead to potential differences in function, mechanisms, and signaling pathways.

    “The physiological and genetic differences between human and animals leads to potential differences in terms of function, mechanisms, and signaling pathways [14,15].”

    From Utility of iPSC-Derived Cells for Disease Modeling, Drug Development, and Cell Therapy (2022) · cites this paper as [14]

    The Discussion (page unavailable) explains that human and mouse hearts predominantly use different myosin isoforms and that the same HCM mutation can have different functional consequences in those isoforms. This supports the claim about potential functional differences, but the paper does not establish a general human–animal difference in mechanisms or signaling pathways. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • iPSC-derived cardiomyocytes from a patient with a MYH7 mutation recapitulated HCM phenotypes including enlarged cellular size, disrupted sarcomere structures, contractile arrhythmia, and dysregulation of Ca2+ cycling.

    “Research using iPSC-derived cardiomyocytes from a patient with a mutation in MYH7 recapitulated HCM phenotypes including enlarged cellular size, disrupted sarcomere structures, contractile arrhythmia, and dysregulation of Ca2+ cycling.”
  • Using patient-specific hiPSC-CMs, researchers can model various CVDs such as long QT syndrome, LV non-compaction, hypertrophic cardiomyopathy, and dilated cardiomyopathy.

    “In addition, using patient-specific hiPSC-CMs, researchers are able to model various CVDs such as long QT syndrome, LV non-compaction, hypertrophic cardiomyopathy and dilated cardiomyopathy [217,423,424].”

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Authors
Lan, F., Lee, A. S., Liang, P., Sanchez-Freire, V., Nguyen, P. K., Wang, L., Han, L., Yen, M., Wang, Y., Sun, N., Abilez, O. J., Hu, S., Ebert, A. D., Navarrete, E. G., Simmons, C. S., Wheeler, M., Pruitt, B., Lewis, R., Yamaguchi, Y., Ashley, E. A., Bers, D. M., Robbins, R. C., Longaker, M. T., & Wu, J. C.
Affiliations
  • Stanford Medicine (US)
  • Stanford University (US)
  • The University of Osaka (JP)
  • University of California, Davis (US)
Corresponding author
Wu, Joseph C.
Venue
Cell Stem Cell
Publisher
Elsevier BV
Published
2013-01
Volume
12
Issue
1
Pages
101-113
ISSN
  • 1875-9777 (ISSN-L)
  • 1934-5909
OpenAlex
W2108903695
Cited by
667
References
39
Citations by year
2026: 18 · 2025: 25 · 2024: 42 · 2023: 53 · 2022: 43 · 2021: 72 · 2020: 48 · 2019: 55 · 2018: 67 · 2017: 49 · 2016: 60 · 2015: 63 · 2014: 52 · 2013: 19
FWCI
43.97
Type
journal article
Language
en
Open access
Locations
  • Cell stem cell (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • Howard Hughes Medical Institute
  • National Institutes of Health (1dp2od004437-01)
  • National Heart, Lung, and Blood Institute (U01HL099776, RC1HL100490, R01HL113006)
Topics
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiomyopathy and Myosin Studies
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiac electrophysiology and arrhythmias
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Pluripotent Stem Cells Research
Keywords
familial hypertrophic cardiomyopathy, MYH7, calcium handling, intracellular calcium, iPSC-derived cardiomyocytes, myocyte hypertrophy, sarcomeric mutations, sudden cardiac death
MeSH terms
Calcium, Cells, Cultured, Humans, Myosin Heavy Chains, Mutation, Missense, Cardiac Myosins, Cardiomyopathy, Hypertrophic, Familial, Induced Pluripotent Stem Cells

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