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Related Concept Videos

EPS and iPS Cells in Disease Research01:21

EPS and iPS Cells in Disease Research

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Embryonic and induced pluripotent stem cells are excellent models for disease research because of their ability to self-renew and differentiate into most cell types. Somatic cells from a patient are isolated and reprogrammed into induced pluripotent stem cells or iPSCs. These iPSCs are later differentiated into the desired cell type, which mirrors the diseased cell of the patient. In this way, disease models have been created for investigating diseases such as Down syndrome, type I diabetes,...
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Updated: Jul 19, 2025

Electrophysiological Analysis of human Pluripotent Stem Cell-derived Cardiomyocytes hPSC-CMs Using Multi-electrode Arrays MEAs
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Aging Model for Analyzing Drug-Induced Proarrhythmia Risks Using Cardiomyocytes Differentiated from

Neil Daily1, Julian Elson1, Tetsuro Wakatsuki1

  • 1InvivoSciences Inc., Madison, WI 53719, USA.

International Journal of Molecular Sciences
|August 12, 2023
PubMed
Summary
This summary is machine-generated.

Hutchinson-Gilford progeria syndrome (HGPS) patient-derived cardiomyocytes show increased proarrhythmia risk, mimicking aged heart cells. This finding aids in developing safer drugs for the elderly by improving preclinical cardiac safety assessments.

Keywords:
CiPAHutchinson–Gilford progeria syndrome (HGPS)aging-in-a-dishcardiac safetylogistic regression

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Area of Science:

  • Cardiovascular Pharmacology
  • Stem Cell Biology
  • Drug Safety Evaluation

Background:

  • Drug-induced proarrhythmia, particularly QT prolongation, is a major cause of drug withdrawal.
  • Preclinical proarrhythmia evaluation is crucial, especially for elderly populations who are primary drug consumers.
  • Current "aging-in-a-dish" models for cardiac safety screening face significant challenges in acquisition.

Purpose of the Study:

  • To test the hypothesis that cardiomyocytes (CMs) from Hutchinson-Gilford progeria syndrome (HGPS) patients can model aged CM phenotypes.
  • To assess the proarrhythmia risk of reference compounds using HGPS-derived CMs compared to control CMs.
  • To evaluate drug-induced changes in calcium transient (CaT) as a surrogate marker for cardiac excitation-contraction coupling.

Main Methods:

  • Differentiated induced pluripotent stem cells (iPSCs) from HGPS patients and healthy controls into CMs.
  • Exposed both HGPS and control CMs to 11 reference compounds from the FDA's Comprehensive in vitro Proarrhythmia Assay (CiPA).
  • Analyzed drug-induced changes in calcium transient (CaT) parameters and applied CiPA regression analysis for compound classification.

Main Results:

  • Progeria CMs exhibited significantly prolonged CaT peak duration (0.98 ± 0.04 s) compared to control CMs (0.70 ± 0.05 s).
  • HGPS CMs demonstrated greater arrhythmia susceptibility across six CaT parameters when exposed to reference compounds.
  • Regression analysis confirmed higher proarrhythmia susceptibility in progeria CMs versus control CMs, with low-risk compounds remaining below the safety threshold.

Conclusions:

  • HGPS-derived CMs serve as a viable model for increased proarrhythmia sensitivity, mimicking aged cardiac cells.
  • This model enhances preclinical cardiac safety assessments, particularly for drug development targeting elderly populations.
  • Further research is warranted to elucidate underlying mechanisms and validate findings with a broader compound set.