Regulation of Satellite Cells Functions during Skeletal Muscle Regeneration: A Critical Step in Physiological and Pathological Conditions

Author:

Careccia Giorgia1,Mangiavini Laura23,Cirillo Federica45ORCID

Affiliation:

1. Department of Biosciences, University of Milan, 20133 Milan, Italy

2. IRCCS Istituto Ortopedico Galeazzi, 20161 Milan, Italy

3. Department of Biomedical Sciences for Health, University of Milan, 20133 Milan, Italy

4. IRCCS Policlinico San Donato, 20097 San Donato Milanese, Italy

5. Institute for Molecular and Translational Cardiology (IMTC), 20097 San Donato Milanese, Italy

Abstract

Skeletal muscle regeneration is a complex process involving the generation of new myofibers after trauma, competitive physical activity, or disease. In this context, adult skeletal muscle stem cells, also known as satellite cells (SCs), play a crucial role in regulating muscle tissue homeostasis and activating regeneration. Alterations in their number or function have been associated with various pathological conditions. The main factors involved in the dysregulation of SCs’ activity are inflammation, oxidative stress, and fibrosis. This review critically summarizes the current knowledge on the role of SCs in skeletal muscle regeneration. It examines the changes in the activity of SCs in three of the most common and severe muscle disorders: sarcopenia, muscular dystrophy, and cancer cachexia. Understanding the molecular mechanisms involved in their dysregulations is essential for improving current treatments, such as exercise, and developing personalized approaches to reactivate SCs.

Funder

Italian Ministry of Health

Publisher

MDPI AG

Subject

Inorganic Chemistry,Organic Chemistry,Physical and Theoretical Chemistry,Computer Science Applications,Spectroscopy,Molecular Biology,General Medicine,Catalysis

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