多肽生长因子是由多种细胞通过自分泌、旁分泌产生的一类小分子物质。多肽生长因子的分子量一般小于80kD,多以摩尔水平浓度通过细胞表面特异性受体传递细胞间信息,对细胞的生长、分化、增殖,间质增生及血管形成起调控作用。细胞因子之间彼此诱导,相互调节,与男性生殖系统关系密 Polypeptide growth factor by a variety of cells through autocrine, paracrine produce a class of small molecules. Polypeptide growth factor molecular weight is generally less than 80kD, more in the level of molar concentration through the cell surface receptor-specific information transmission between cells, the cell growth, differentiation, proliferation, interstitial hyperplasia and angiogenesis play a regulatory role. Cytokines induce each other, mutual regulation, and the male reproductive system closely related