[Reduction of germ cell number induced in vitro by the testis in fetal rat ovary may be caused by factors other than anti-Müllerian hormone].
Fetal testes explanted at 16.5 days and cultured with female genital tracts from 13.5-day-old rat fetuses strongly inhibited the Müllerian ducts and reduced the number of ovarian germ cells. Such a reduction was not obtained during cultures with testes from 13.5 days, even though they clearly inhibited Müllerian ducts. When testes from 16.5 days were cultured at distance from the female tracts only the loss of germ cells was observed. These results suggest that testes from 16.5 days produce a diffusible factor distinct from AMH and which reduces the number of germ cells in cultured ovaries.
Charpentier
G
G
Laboratoire de Physiologie du Développement, Collège de France, Paris.
Magre
S
S
D000367:Age Factors; D000818:Animals; D054304:Anti-Mullerian Hormone; D002452:Cell Count; D002478:Cells, Cultured; D005260:Female; D006023:Glycoproteins; D006131:Growth Inhibitors / Q000032:analysis*; D008297:Male; D009095:Mullerian Ducts; D010053:Ovary / Q000166:cytology*; D051381:Rats; D013735:Testicular Hormones / Q000032:analysis*; D013737:Testis / Q000378:metabolism*
D006023:Glycoproteins; D006131:Growth Inhibitors; D013735:Testicular Hormones; D054304:Anti-Mullerian Hormone
La réduction du nombre de cellules germinales induite in vitro par le testicule dans l'ovaire foetal de rat pourrait être due à un facteur distinct de l'hormone anti-Müllérienne.