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Related Experiment Video

Updated: Mar 3, 2026

Construction of Defined Human Engineered Cardiac Tissues to Study Mechanisms of Cardiac Cell Therapy
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Functional Tissue Engineering: A Prevascularized Cardiac Muscle Construct for Validating Human Mesenchymal Stem Cells

Mani T Valarmathi1, John W Fuseler2, Jay D Potts3

  • 11 Department of Comparative Biosciences, College of Veterinary Medicine, University of Illinois at Urbana-Champaign , Urbana, Illinois.

Tissue Engineering. Part A
|May 2, 2017
PubMed
Summary
This summary is machine-generated.

This study developed a 3D cardiac muscle construct using human mesenchymal stem cells (hMSCs) and embryonic cardiac myocytes. The model successfully demonstrated cardiac regeneration and vascularization, offering a promising tool for tissue engineering and personalized medicine.

Keywords:
bone marrow stromal cellscardiovascular tissue engineeringembryonic cardiac myocytesexcitation–contraction couplingmesenchymal stem cellsmyocardial regeneration

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Area of Science:

  • Regenerative Medicine
  • Cardiovascular Biology
  • Stem Cell Biology

Background:

  • Somatic stem cell therapy for cardiac regeneration is nascent, with challenges in assessing efficacy and stem cell integration.
  • Key questions persist regarding stem cell differentiation, functional synchronization, and engraftment in myocardial damage.
  • Developing in vitro three-dimensional (3D) models for cardiomyogenesis and cardiac tissue engineering is crucial, particularly using human mesenchymal stem cells (hMSCs).

Purpose of the Study:

  • To create a 3D functional, prevascularized cardiac muscle construct using embryonic cardiac myocytes (eCMs) and hMSCs.
  • To establish a reproducible in vitro 3D model for studying cardiomyogenesis and cardiac tissue regeneration.
  • To evaluate the potential of hMSCs in cardiac tissue engineering for personalized medicine.

Main Methods:

  • Co-culturing human cardiac microvascular endothelial cells (hCMVECs) and hMSCs on a 3D collagen cell carrier (CCC) for 7 days under vasculogenic conditions to form vascular networks.
  • Subsequently co-culturing eCMs and hMSCs onto the prevascularized CCCs for 7 or 14 days under myogenic conditions.
  • Characterizing vascular and cardiac phenotypic inductions through morphological, immunological, biochemical, molecular, and functional analyses.

Main Results:

  • Formation of dense vascular networks by hCMVECs and hMSCs, demonstrating maturation, differentiation, and morphogenesis.
  • Evidence of neo-cardiomyogenesis and neo-vasculogenesis upon co-culturing eCMs and hMSCs.
  • Demonstrated electromechanical coupling between hMSCs and eCMs, with hMSCs also contributing as mural cells to the vasculature.

Conclusions:

  • The developed 3D coculture system provides a reproducible in vitro model for cardiomyogenesis.
  • A functional, prevascularized 3D cardiac graft was successfully engineered.
  • This system holds potential for applications in personalized medicine for cardiac repair.