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Satellite Stem Cells and Muscular Dystrophy01:21

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Satellite stem cells or myosatellite cells are quiescent stem cells that Alexander Mauro first identified in 1961. These cells are located between the sarcolemma, the plasma membrane of muscle fibers, and the basal lamina, the connective tissue sheath covering it. These mononucleated cells are activated in response to muscle injury, can transform into myoblasts, and may form or repair muscle fibers. Myosatellite cells can provide additional myonuclei for muscle regeneration or return to a...
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Available In Vitro Models for Human Satellite Cells from Skeletal Muscle.

Cecilia Romagnoli1, Teresa Iantomasi1, Maria Luisa Brandi2

  • 1Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Viale Pieraccini 6, 50139 Florence, Italy.

International Journal of Molecular Sciences
|December 24, 2021
PubMed
Summary
This summary is machine-generated.

Human skeletal muscle research is advancing with in vitro 2D/3D models of satellite cells. These models offer a vital alternative to animal studies for understanding muscle aging and disease.

Keywords:
2D/3D modelscell culturemyogenesissatellite cellsskeletal muscle

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Area of Science:

  • Biomedical Science
  • Cell Biology
  • Skeletal Muscle Physiology

Background:

  • Skeletal muscle is crucial for movement and adaptation, comprising 40% of body mass.
  • Muscle wasting due to aging and disease leads to loss of mass and function.
  • Satellite cells are key for muscle repair but can become dysfunctional.

Purpose of the Study:

  • To review in vitro 2D/3D models of human satellite cells.
  • To assess their utility in studying skeletal muscle biology.
  • To explore future directions for pre-clinical investigations.

Main Methods:

  • Review of existing literature on in vitro skeletal muscle models.
  • Focus on 2D and 3D culture systems.
  • Emphasis on human satellite cell applications.

Main Results:

  • In vitro models provide a necessary human-based alternative to animal studies.
  • These models allow for detailed investigation of muscle homeostasis and regeneration.
  • Current models are advancing the study of age-related muscle decline.

Conclusions:

  • In vitro human satellite cell models are essential for skeletal muscle research.
  • They facilitate pre-clinical studies and understanding of muscle wasting.
  • Further development of these models will drive future therapeutic strategies.