细胞生长因子修复骨骼肌损伤

Cell growth factors for repair of skeletal muscle injury

BACKGROUND: A variety of cell growth factors are involved in skeletal muscle regeneration; moreover, these factors cooperate with each other to promote muscle repair and regeneration. OBJECTIVE: To explore the synergy mechanism of a variety of cell growth factors in promoting damage repair. METHODS: By using literature survey, Wanfang, CNKI and PubMed databases were searched for articles related to exercise-induced muscle damage and repair using the keywords of “cell growth factor; skeletal muscle damage;   repair; fibroblast growth factor” in Chinese and English, respectively. Research achievements related to exercise-induced muscle damage, molecular biological characteristics of cell growth factors and skeletal muscle injury repair are discussed. RESULTS AND CONCLUSION: Basic fibroblast growth factor plays a basic biological role to promote cell proliferation and angiogenesis, which is the strongest cytokine known to promote cell growth and reflects a very important role in skeletal muscle repair. Epidermal growth factor is synthesized by monocytes and ectodermal cells, which is prominent to stimulate the division and proliferation of a variety of tissues and cells, enhance cell movement, division and synthesis of interstitial protein. Insulin-like growth factors are a family of insulin-like growth factor 1-related and insulin-like growth factor 2-related peptides, which can promote muscle protein synthesis, promote muscle cell proliferation and differentiation, and participate in skeletal muscle regeneration and repair, thereby accelerating wound healing of the muscles. Neurotrophic factor is a kind of trace soluble substances around sensory neurons and produced by neuron-targeted cells, which can specifically promote neuronal growth and maintenance, and promote skeletal muscle repair. But studies on the synergy mechanism of a variety of cell growth factors in the repair of exercise-induced muscle damage are just at the initial stage, and further research is necessary.