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McCullagh, KJA,Perlingeiro, RCR
Coaxing stem cells for skeletal muscle repair
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Satellite cells Mesenchymal stem cells Pluripotent stem cells Muscular dystrophy Muscle regeneration Niche Bioengineering DUCHENNE MUSCULAR-DYSTROPHY SELF-RENEWAL SATELLITE CELL IN-VITRO MYOGENIC PROGENITORS GENE-THERAPY MICE REGENERATION TRANSPLANTATION MOUSE
Skeletal muscle has a tremendous ability to regenerate, attributed to a well-defined population of muscle stem cells called satellite cells. However, this ability to regenerate diminishes with age and can also be dramatically affected by multiple types of muscle diseases, or injury. Extrinsic and/or intrinsic defects in the regulation of satellite cells are considered to be major determinants for the diminished regenerative capacity. Maintenance and replenishment of the satellite cell pool is one focus for muscle regenerative medicine, which will be discussed. There are other sources of progenitor cells with myogenic capacity, which may also support skeletal muscle repair. However, all of these myogenic cell populations have inherent difficulties and challenges in maintaining or coaxing their derivation for therapeutic purpose. This review will highlight recent reported attributes of these cells and new bioengineering approaches to creating a supply of myogenic stem cells or implants applicable for acute and/or chronic muscle disorders. (C) 2014 Elsevier B.V. All rights reserved.
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