Sertoli cells (SCs) were recognized as the nurse cells in the testis and also secreted many active substances, including growth factors, trophic factors and physiologically regulatory proteins et al. Furthermore, Sertoli cells created propitious micro-environments that were advantageous to the development of many other cells (e.g. spermatogenic cells and neural stem cells). Besides, SCs could induce differentiation of fetal cortex neural stem cells (NSCs) and promote the growth of P-TujIII positive neurons....