摘要
胰岛素样生长因子-1(IGF-1)不仅具有促进细胞分裂增殖、促进个体生长发育和调节物质代谢的作用,对男性生殖器官发育及睾丸内分泌功能也有重要的调控作用。下丘脑的IGF-1可以刺激青春期前雄鼠的GnRH基因表达,但没有出现甚至有抑制成熟后的GnRH神经元表达GnRH基因,IGF-1影响了GnRH神经元的生长、成熟和分化。IGF-1还能促进垂体内LH和FSH分泌。在睾丸局部产生的IGF-1与其特异性的靶受体相结合,参与调节睾丸Leydig细胞的增殖及分化,使Sertoli细胞产生不同的功能及调控睾丸激素的生物合成。
It has been demonstrated that insulin-like growth factor-1 （IGF-1） stimulates the proliferation and division of cells, facilitates the individual gowth and development and regulates the material metabolism. Furthermore, it regulates male reproductive development and testicular endocrine functions. IGF-1 can stimulate the expression of GnRH gene in the hypothalamus of prepubertal male mice. However, it has no effect on or even inhibits GnRH gene expression in adult mice. IGF-1 may influence the growth, maturation and differentiation of GnRH neurons. It also accelerates LH and FSH secretion in hypophysis. IGF-1, produced locally in the testis and combined with its specific receptor, can regulate the proliferation and differentiation of adult Leydig ceils, cause Sertoli cells to play different functions and control the biosynthesis of testicular hormones. Natl J Androl, 2007,13 （2） ：171-174
出处
《中华男科学杂志》
CAS
CSCD
2007年第2期171-174,共4页
National Journal of Andrology
