简介：
Overview
This article presents a reliable method for isolating adult mouse cardiomyocytes, ensuring consistent results for their culture from various genetically modified mice.
Key Study Components
Area of Science
- Cardiomyocyte isolation
- Cell culture techniques
- Functional assays
Background
- Isolation of cardiomyocytes is crucial for studying heart function.
- Adult mouse cardiomyocytes are challenging to culture due to their unique properties.
- Genetically modified mice provide insights into specific cardiac functions.
- Reliable protocols enhance reproducibility in research.
Purpose of Study
- To develop a consistent method for culturing functional adult mouse cardiomyocytes.
- To facilitate research on cardiac physiology and pathology.
- To provide a protocol applicable to various genetically modified strains.
Methods Used
- Mouse heart removal under anesthesia and cannulation.
- Perfusion and digestion of the heart using collagenase.
- Dissociation of cells and reintroduction of calcium.
- Seeding and culturing primary cardiomyocytes.
Main Results
- Successful isolation of functional adult cardiomyocytes.
- Demonstration of PI3 kinase-dependent AKT phosphorylation.
- Increased protein synthesis rate induced by Ouabain.
- Protocol yields consistent results across different mouse models.
Conclusions
- The described method is reliable for isolating adult mouse cardiomyocytes.
- It supports functional studies in cardiac research.
- Further applications can extend to various genetic backgrounds.
What is the main goal of this procedure?
The main goal is to yield a consistent preparation for the culture of functional adult mouse cardiomyocytes.
How is the heart prepared for cardiomyocyte isolation?
The heart is removed under anesthesia, perfused, and digested with collagenase.
What assays can demonstrate the functionality of the cardiomyocytes?
Western blots and tritiated leucine incorporation assays can be used to demonstrate functionality.
What factors are monitored during collagenase digestion?
The color and softness of the heart tissue are monitored to determine when to stop digestion.
Can this method be applied to genetically modified mice?
Yes, the protocol is designed to yield consistent results from various genetically modified mice.
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