期刊
MEDYCYNA WETERYNARYJNA-VETERINARY MEDICINE-SCIENCE AND PRACTICE
卷 72, 期 8, 页码 472-478出版社
POLISH SOC VETERINARY SCIENCES EDITORIAL OFFICE
DOI: 10.21521/mw.5551
关键词
chemokines; cytokines; muscle injury; muscle regeneration
Skeletal muscle healing after injury can be divided into three distinct but overlapping phases. The destruction phase is characterized by rupture followed by necrosis of muscle fibers, formation of hematoma and inflammatory reaction. During the repair phase a necrotic tissue is phagocyted by macrophages, muscle fibers are regenerating and connective tissue scars are formed. The remodeling phase concerns the period when regenerating muscle fibers mature, scar contraction and reorganization occurs and the muscle recovers its functional efficiency. Proinflammatory cytokines (IL-1 beta, IL-6, IL-8, TNF-alpha) and growth factors (FGF, IGF, TGF-beta, HGF) play a critical role in all phases of muscle repair. Moreover, chemokines expressed at early stages of myogenesis can regulate the survival and proliferation of myoblasts. Chemokines expressed in vivo in muscle cells can directly influence myogenesis, but can also act in a paracrine manner by recruiting the immune cells (macrophages) to injured skeletal muscles, which is crucial for the regeneration process. Identification of molecules regulating myogenesis, like cytokines, chemokines and growth factors, contributes to the exploration of molecular mechanisms that can improve muscle regeneration after injury, diseases, surgery and increase the effectiveness of cell transplantation.
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