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Updated: Jul 18, 2026
Isolation and Culture of Adult Mouse Cardiomyocytes for Cell Signaling and in vitro Cardiac Hypertrophy
Published on: May 21, 2014
Isolation and culture of adult mouse cardiac myocytes
Timothy D O'Connell1, Manoj C Rodrigo, Paul C Simpson
1Department of Medicine, The University of South Dakota, Sioux Falls, USA.
Abstract:
Cardiac myocytes are activated by hormonal and mechanical signals and respond in a variety of ways, from altering contractile function to inducing cardio-protection and growth responses. The use of genetic mouse models allows one to examine the role of cardiac-specific and other genes in cardiac function, hypertrophy, cardio-protection, and diseases such as ischemia and heart failure. However, studies at the cellular level have been hampered by a lack of suitable techniques for isolating and culturing calcium-tolerant, adult mouse cardiac myocytes. We have developed a straightforward, reproducible protocol for isolating and culturing large numbers of adult mouse cardiac myocytes. This protocol is based on the traditional approach of retrograde perfusion of collagenase through the coronary arteries to digest the extracellular matrix of the heart and release rod-shaped myocytes. However, we have made modifications that are essential for isolating calcium-tolerant, rod-shaped adult mouse cardiac myocytes and maintaining them in culture. This protocol yields freshly isolated adult mouse myocytes that are suitable for biochemical assays and for measuring contractile function and calcium transients, and cultured myocytes that are suitable for most biochemical and signaling assays, as well as gene transduction using adenovirus.
Insights
Researchers developed a new method to isolate and culture adult mouse cardiac myocytes, crucial for studying heart function and disease. This technique enables better research into cardiac hypertrophy and cardio-protection using mouse models.
Area of Science:
- Cardiovascular Biology
- Cellular Physiology
- Molecular Cardiology
Background:
- Cardiac myocytes respond to hormonal and mechanical signals, influencing contractile function, cardio-protection, and growth.
- Genetic mouse models are vital for studying cardiac function, hypertrophy, cardio-protection, and diseases like ischemia and heart failure.
- Existing cellular studies are limited by the lack of effective techniques for isolating and culturing calcium-tolerant adult mouse cardiac myocytes.
Purpose of the Study:
- To develop a straightforward and reproducible protocol for isolating and culturing adult mouse cardiac myocytes.
- To overcome limitations in current cellular-level research on cardiac function and disease.
Main Methods:
- Modified traditional retrograde perfusion of collagenase through coronary arteries to digest the heart's extracellular matrix.
- Isolation and culturing of rod-shaped, calcium-tolerant adult mouse cardiac myocytes.
- Utilized modifications essential for maintaining myocyte viability and function in culture.
Main Results:
- Successfully isolated and cultured large numbers of adult mouse cardiac myocytes.
- Yielded freshly isolated myocytes suitable for biochemical assays, contractile function, and calcium transient measurements.
- Produced cultured myocytes appropriate for biochemical and signaling assays, including adenovirus-mediated gene transduction.
Conclusions:
- The developed protocol provides a reliable method for obtaining viable adult mouse cardiac myocytes.
- This advancement facilitates in-depth cellular and molecular studies of cardiac function, hypertrophy, and disease.
- Enables enhanced research using genetic mouse models for cardiovascular science.
