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Updated: May 26, 2026
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3D Human Myocardial Tissue Generation Using Melt Electrospinning Writing of Polycaprolactone Scaffolds and hiPSC-Derived Cardiac Cells
Published on: March 28, 2025
Combinatorial polymer electrospun matrices promote physiologically-relevant cardiomyogenic stem cell differentiation.
Mukesh K Gupta1, Joel M Walthall, Raghav Venkataraman
1Department of Biomedical Engineering, Vanderbilt University, Nashville, Tennessee, USA.
Plos One
|January 5, 2012
Summary
Optimizing polymer scaffolds enhances stem cell differentiation into cardiomyocytes. Softer, tunable scaffolds promote cardiac repair after heart damage.
Area of Science:
- Biomaterials Science
- Stem Cell Biology
- Cardiovascular Research
Background:
- Myocardial infarction causes cardiomyocyte death, leading to heart failure.
- Stem cell therapy offers a potential solution for cardiac tissue repair.
- Polymer scaffolds can guide stem cell differentiation.
Purpose of the Study:
- Optimize polymer scaffold properties for directed embryonic stem cell (ESC) differentiation into cardiomyocytes.
- Investigate the impact of scaffold chemical and mechanical properties on cardiomyogenesis.
Main Methods:
- Created a combinatorial polymer library using polyethylene glycol (PEG), poly(ε-caprolactone) (PCL), and carboxylated PCL (CPCL).
- Fabricated electrospun polymer scaffolds with tunable properties.
- Assessed ESC differentiation via viability, ROS levels, α-myosin heavy chain (α-MHC) expression, and Ca(2+) signaling.
Main Results:
- The most compliant scaffold (4%PEG-86%PCL-10%CPCL) showed highest α-MHC expression and mature Ca(2+) signaling.
- Reduced scaffold modulus enhanced α-MHC gene expression and myocyte Ca(2+) handling.
- Scaffold properties significantly influenced ESC differentiation towards cardiomyocytes.
Conclusions:
- Tuning polymer scaffold mechanical and chemical properties via copolymerization and electrospinning promotes ESC-derived cardiomyocyte differentiation and maturation.
- Scaffold compliance is a key factor in enhancing cardiomyogenesis.
- This approach holds promise for cardiac regenerative medicine.
