Growth Differentiation Factor 9 Is a Germ Cell Regulator of Sertoli Cell Function
نویسندگان
چکیده
منابع مشابه
The Fas system, a regulator of testicular germ cell apoptosis, is differentially up-regulated in Sertoli cell versus germ cell injury of the testis.
Sertoli cells, the supportive cells in the seminiferous epithelium, orchestrate spermatogenesis by providing structural and nutritional support to germ cells. In the rat, physiological apoptosis occurs continuously to limit the size of the germ cell population to numbers that can be adequately supported. This form of germ cell death is exaggerated after testicular insults such as toxicant treat...
متن کاملSertoli-Sertoli and Sertoli-germ cell interactions and their significance in germ cell movement in the seminiferous epithelium during spermatogenesis.
Spermatogenesis is the process by which a single spermatogonium develops into 256 spermatozoa, one of which will fertilize the ovum. Since the 1950s when the stages of the epithelial cycle were first described, reproductive biologists have been in pursuit of one question: How can a spermatogonium traverse the epithelium, while at the same time differentiating into elongate spermatids that remai...
متن کاملRegulation of Sertoli cell and germ cell differentation.
Unwanted childlessness affects approximately one in six couples worldwide. According to the World Health Organization, in nearly 40% of cases the cause can be attributed to the female, in 20% to the male, in 25% to both, and in 15% the cause remains unknown. The incidence of male factor infertility in the general population is approximately 7%. The majority of these men experience irreversible ...
متن کاملExtracellular matrix regulates Sertoli cell differentiation, testicular cord formation, and germ cell development in vitro
Sertoli cell preparations isolated from 10-day-old rats were cultured on three different substrates: plastic, a matrix deposited by co-culture of Sertoli and peritubular myoid cells, and a reconstituted basement membrane gel from the EHS tumor. When grown on plastic, Sertoli cells formed a squamous monolayer that did not retain contaminating germ cells. Grown on the matrix deposited by Sertoli-...
متن کاملBone morphogenetic protein 15 and growth differentiation factor 9 co-operate to regulate granulosa cell function.
The oocyte-secreted polypeptide growth factors, growth differentiation factor 9 (GDF9) and bone morphogenetic protein 15 (BMP15, also known as GDF9B) have both been shown to be essential for ovarian follicular growth and function. The effects of murine (m) and ovine (o) GDF9 as well as oBMP15, alone or together, on 3H-thymidine uptake and progesterone and inhibin production by granulosa cells f...
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ژورنال
عنوان ژورنال: Endocrinology
سال: 2008
ISSN: 0013-7227,1945-7170
DOI: 10.1210/en.2008-1048