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Related Experiment Video

Updated: Nov 8, 2025

Generating Self-Assembling Human Heart Organoids Derived from Pluripotent Stem Cells
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Engineering spatial-organized cardiac organoids for developmental toxicity testing.

Plansky Hoang1, Andrew Kowalczewski1, Shiyang Sun1

  • 1Department of Biomedical and Chemical Engineering, Syracuse University, Syracuse, NY, USA; BioInspired Syracuse Institute for Material and Living Systems, Syracuse, NY, USA.

Stem Cell Reports
|April 23, 2021
PubMed
Summary
This summary is machine-generated.

Engineered cardiac organoids using human induced pluripotent stem cells (hiPSCs) show size-dependent effects on contraction. This platform can screen pharmaceutical compounds for cardiac developmental toxicity.

Keywords:
cardiac organoidscell micropatterningdata miningembryotoxicityhuman induced pluripotent stem cellsin vitro embryo model

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Area of Science:

  • Biomedical Engineering
  • Stem Cell Biology
  • Cardiovascular Research

Background:

  • Stem cell engineering advances enable organoid development using biomaterial cues.
  • Controlling stem cell fate is key to creating functional organoid models.
  • Cardiac organoids offer a promising in vitro model for studying heart development and toxicity.

Purpose of the Study:

  • To engineer spatially organized cardiac organoids from hiPSCs.
  • To investigate the impact of geometric confinement on organoid morphology and function.
  • To establish a cardiac organoid assay for developmental toxicity screening of pharmaceutical compounds.

Main Methods:

  • Micropatterning and differentiation of human induced pluripotent stem cells (hiPSCs).
  • Engineering cardiac organoids with cardiomyocytes and stromal cells.
  • Analyzing structure-function relationships using data-mining techniques.
  • Assessing embryotoxic potential of pharmaceutical compounds using cardiac organoids.

Main Results:

  • Spatially organized cardiac organoids with functional cardiomyocytes were successfully engineered.
  • Geometric confinement significantly influenced organoid morphology and contractile functions.
  • Pattern size was found to critically affect contraction duration and diastolic functions.
  • The cardiac organoid assay effectively quantified the developmental toxicity of nine pharmaceutical compounds.

Conclusions:

  • Cardiac organoids engineered via micropatterning provide insights into structure-function relationships.
  • This platform is valuable for studying cardiac development and drug-induced toxicity.
  • Optimized organoid production and assay development pave the way for robust toxicity screening.