Sertoli cells are found within the seminiferous tubules of the testes and play a crucial role in supporting the development and maturation of sperm. These cells provide structural support, regulate the microenvironment within the seminiferous tubules, and also secrete various factors necessary for sperm production. Additionally, Sertoli cells are involved in the maintenance of the blood-testis barrier, which protects developing sperm from harmful substances and allows for proper sperm development. Research on Sertoli cells is important for understanding the mechanisms of spermatogenesis and infertility, as well as developing potential treatments for male reproductive disorders.