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Updated: Jul 4, 2026

High Efficiency Differentiation of Human Pluripotent Stem Cells to Cardiomyocytes and Characterization by Flow Cytometry

High Efficiency Differentiation of Human Pluripotent Stem Cells to Cardiomyocytes and Characterization by Flow Cytometry

Published on: September 23, 2014

Highly enriched cardiomyocytes from human embryonic stem cells.

X Q Xu¹, R Zweigerdt, S Y Soo

¹ES Cell International Pte Ltd, Singapore.

|June 25, 2008

Summary

This summary is machine-generated.

Generating pure human cardiomyocytes from human embryonic stem cells (hESC) is now possible using lineage selection. This method ensures over 99% purity and avoids teratoma formation, advancing cell therapies.

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Derivation of Highly Purified Cardiomyocytes from Human Induced Pluripotent Stem Cells Using Small Molecule-modulated Differentiation and Subsequent Glucose Starvation

Published on: March 18, 2015

Area of Science:

Stem cell biology
Cardiovascular research
Regenerative medicine

Background:

Directing human embryonic stem cell (hESC) differentiation often yields heterogeneous cell populations.
Achieving a pure population of a specific cell lineage, like cardiomyocytes, remains a challenge.

Purpose of the Study:

To develop a method for generating an essentially pure population of human cardiomyocytes from hESCs.
To assess the safety and efficacy of this purification method.

Main Methods:

Generated stable transgenic hESC lines using a construct with the alpha-myosin heavy chain (alpha-MHC) promoter driving neomycin-resistance.
Differentiated transgenic hESCs into cardiomyocytes and applied G418 antibiotic selection.
Characterized selected and non-selected cells using immunocytochemistry and RT-PCR; assessed teratoma formation in SCID mice.

Main Results:

Antibiotic selection after cardiac differentiation yielded over 99% pure cardiomyocytes, confirmed by alpha-MHC and alpha-actinin immunoreactivity.
Quantitative RT-PCR showed enrichment of cardiac-specific gene expression in the selected population.
Selected cells did not form teratomas when injected into SCID mice, unlike non-selected controls.

Conclusions:

This lineage selection strategy enables scalable production of pure human cardiomyocytes from expandable hESC lines.
The findings facilitate advancements in cell therapies, safety pharmacology, and drug discovery.
Pure cardiomyocyte populations derived from hESCs offer a promising platform for therapeutic applications.