The Sertoli cell extends from the basement membrane of the seminiferous tubule towards its lumen; it sends cytoplasmic processes which envelop different generations of germ cells. The use of Sertoli cell culture began to develop in 1975. To reduce germ cell contamination immature animals are generally used as Sertoli cell donors. Sertoli cell mitosis essentially occurs in sexually immature testes in mammals; mitosis of these cells is observed in vitro during a limited period of time. Sertoli cells in vivo perform an impressive range of functions: structural support of the seminiferous epithelium, displacement of germ cells and release of sperm; formation of the Sertoli cell blood-testis barrier; secretion of factors and nutrition of germ cells; phagocytosis of degenerating germ cells and of germ cell materials. Some of the Sertoli cell functions can be studied in vitro. The recent development of Sertoli cell culture on permeable supports (with or without extracellular matrix) has resulted in progress in understanding the vectorial secretion of several Sertoli cell markers. In addition to FSH and testosterone, several other humoral factors are known to influence Sertoli cell function. Furthermore, myoid cells bordering the tubules as well as germ cells are capable of regulating Sertoli cell activity. Sertoli cells are the most widely used testicular cells for in vitro toxicology. The testis is highly vulnerable to xenobiotics and radiations, yet the number of studies undertaken in this field is insufficient and should be drastically increased.
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Jégou, B. The Sertoli cell in vivo and in vitro . Cell Biol Toxicol 8, 49–54 (1992). https://doi.org/10.1007/BF00130510
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DOI: https://doi.org/10.1007/BF00130510