The Journal of Physical Fitness and Sports Medicine
Online ISSN : 2186-8123
Print ISSN : 2186-8131
ISSN-L : 2186-8131
Short Review Article
Skeletal muscle regeneration and muscle progenitor cells
Norio MotohashiMatthew S. AlexanderLouis M. Kunkel
ジャーナル フリー

2012 年 1 巻 1 号 p. 151-154


Skeletal muscle is the most abundant tissue in the mammalian body and is composed of multinucleated fibers that contract to generate force and movement. In addition, skeletal muscle has the ability to regenerate following severe damage by exercise, toxins or disease. Regeneration is possible because of the presence of mononucleated precursor cells called satellite cells. After injury, satellite cells are activated, proliferate, and fuse with the damaged fibers or fuse together to form new myofibers. A fraction of satellite cells self-renew and behave as muscle stem cells. Although satellite cells are the main players in muscle regeneration, a number of other cell types are also recruited to form new fibers or to modulate the behavior of satellite cells. Here we present an overview of current knowledge of regeneration focusing on muscle satellite cells and other stem cells and discussing promising stem cell therapy for diseases such as muscular dystrophy.

© 2012 The Japanese Society of Physical Fitness and Sports Medicine
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