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Updated: Jun 25, 2025

Modified Mouse Embryonic Stem Cell based Assay for Quantifying Cardiogenic Induction Efficiency

Modified Mouse Embryonic Stem Cell based Assay for Quantifying Cardiogenic Induction Efficiency

Published on: April 22, 2011

Protocol for quantifying stem-cell-derived cardiomyocyte maturity using transcriptomic entropy score.

Elaine Zhelan Chen¹, Suraj Kannan¹, Sean Murphy¹

¹Division of Cardiology, Department of Medicine, Johns Hopkins School of Medicine; Baltimore, MD, USA; Department of Biomedical Engineering, Johns Hopkins School of Medicine; Baltimore, MD, USA; Department of Cell Biology, Johns Hopkins School of Medicine; Baltimore, MD, USA; Institute for Cell Engineering, Johns Hopkins School of Medicine; Baltimore, MD, USA.

|May 23, 2024

Summary

This summary is machine-generated.

Quantifying cardiomyocyte maturation is crucial for stem cell research. A new "entropy score" metric, derived from single-cell RNA sequencing, offers a reliable way to measure stem-cell-derived cardiomyocyte maturity.

Keywords:

Bioinformatics Developmental biology Gene expression RNA-seq Stem cells

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Electrophysiological Analysis of human Pluripotent Stem Cell-derived Cardiomyocytes hPSC-CMs Using Multi-electrode Arrays MEAs

Published on: May 12, 2017

Area of Science:

Cardiovascular Biology
Stem Cell Biology
Genomics

Background:

Quantifying cardiomyocyte (CM) maturation is a significant challenge in stem cell research.
Current methods are insufficient for evaluating the effectiveness of producing adult-like CMs from pluripotent stem cells (PSCs).

Purpose of the Study:

To introduce a novel protocol for quantifying stem cell-derived CM maturity.
To establish a single-cell RNA sequencing-based metric, the "entropy score," for assessing CM maturation.

Main Methods:

Development of a protocol utilizing single-cell RNA sequencing (scRNA-seq).
Implementation of customized R code to generate an "entropy score."
Application of the entropy score to quantify maturation levels in PSC-derived CMs.

Main Results:

A new metric, the "entropy score," has been developed to quantify CM maturity.
The protocol enables objective measurement of stem cell-derived CM maturation.
The entropy score shows potential for application beyond PSC-CMs to other cell types.

Conclusions:

The developed entropy score provides a robust method for quantifying cardiomyocyte maturation.
This scRNA-seq-based metric facilitates the evaluation of stem cell differentiation protocols.
The entropy score offers a versatile tool for assessing cellular maturity across different cell types.