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Updated: Sep 5, 2025
Isolation and Quantitative Immunocytochemical Characterization of Primary Myogenic Cells and Fibroblasts from Human Skeletal Muscle
Published on: January 12, 2015
Immunofluorescence analysis of myogenic differentiation
Atsushi Asakura1, Nobuaki Kikyo2
1Stem Cell Institute, University of Minnesota, Minneapolis, MN, United States; Paul & Sheila Wellstone Muscular Dystrophy Center, University of Minnesota, Minneapolis, MN, United States; Department of Neurology, University of Minnesota, Minneapolis, MN, United States.
This study details isolating mouse skeletal muscle satellite cells and using immunofluorescence staining to track their proliferation and differentiation. These methods aid in understanding muscle regeneration and myogenic processes in vitro.
Area of Science:
- Muscle regeneration and stem cell biology
- Cellular and molecular biology
- Biotechnology and tissue engineering
Background:
- Skeletal muscle possesses remarkable regenerative capacity, crucial for recovery from injury and exercise.
- Adult muscle satellite cells are quiescent stem cells that activate upon damage, initiating the myogenic program.
- Primary myoblasts and C2C12 myoblast cell line serve as vital in vitro models for studying myogenesis.
Purpose of the Study:
- To outline a workflow for isolating primary mouse skeletal muscle satellite cells.
- To describe immunofluorescence staining techniques for assessing myoblast proliferation and differentiation.
- To provide a method for examining myogenic processes in both primary myoblasts and C2C12 cells.
Main Methods:
- Enzymatic digestion and magnetic separation using specific surface markers for satellite cell isolation from mouse skeletal muscle.
- Culturing of primary myoblasts and C2C12 cells for in vitro studies.
- Immunofluorescence staining to monitor protein expression within subcellular compartments during myogenic differentiation.
Main Results:
- Successful isolation of viable satellite cells from mouse skeletal muscle.
- Demonstration of immunofluorescence staining as an effective method for assessing satellite cell proliferation and differentiation.
- Establishment of a reproducible protocol for studying myogenesis in vitro using primary myoblasts and C2C12 cells.
Conclusions:
- The described protocol enables efficient isolation of skeletal muscle satellite cells.
- Immunofluorescence staining is a powerful tool for evaluating satellite cell behavior and myogenic differentiation.
- This methodology supports research into muscle repair, regeneration, and the development of novel therapeutics.
