TY - JOUR TI - The role of stem cell factor and of alternative c-kit gene products in the establishment, maintenance and function of germ cells. AU - Sette, C AU - Dolci, S AU - Geremia, R AU - Rossi, P T2 - The International Journal of Developmental Biology AB - The c-kit gene plays a fundamental role during the establishment, the maintenance and the function of germ cells. In the embryonal gonad the c-kit tyrosine kinase receptor and its ligand Stem Cell Factor (SCF) are required for the survival and proliferation of primordial germ cells. In the postnatal animal, c-kit/SCF are required for the production of the mature gametes in response to gonadotropic hormones, i.e. for the survival and/or proliferation of the only proliferating germ cells of the testis, the spermatogonia, and for the growth and maturation of the oocytes. Finally, a truncated c-kit product, tr-kit, specifically expressed in post-meiotic stages of spermatogenesis and present in mature spermatozoa, causes parthenogenetic activation when microinjected into mouse eggs, suggesting that it might play a role in the final function of the gametes, fertilization. PY - 2000 VL - 44 IS - 6 SP - 599 EP - 608 J2 - Int. J. Dev. Biol. LA - en SN - 0214-6282 SN - 1696-3547 UR - https://ijdb.ehu.eus/article/11061423 Y2 - 2024/11/24/17:15:12 ER -