The effect of activin and FSH on the differentiation of rat granulosa cells.
The differentiation of granulosa cells is regulated by follicle-stimulating hormone (FSH) and local ovarian factors. To further analyze the role of FSH and activin in this process, we have examined the effect of FSH and activin on FSH and luteinizing hormone/human chorionic gonadotropin (LH/hCG) receptor induction in granulosa cells. Granulosa cells from diethylstilbestrol (DES)-primed immature rats produce activin and maintain FSH receptor without LH/hCG receptor expression in the absence of FSH. On the other hand, FSH induced granulosa cells to differentiate into more mature granulosa cells in which higher LH/hCG receptor expression and diminished activin production were observed.
Kishi
H
H
Department of Obstetrics and Gynecology, Gunma University School of Medicine, Gunma University, Maebashi, Japan.
Minegishi
T
T
Tano
M
M
Kameda
T
T
Ibuki
Y
Y
Miyamoto
K
K
D028341:Activins; D000818:Animals; D002454:Cell Differentiation / Q000187:drug effects; D005260:Female; D005640:Follicle Stimulating Hormone / Q000494:pharmacology*; D006107:Granulosa Cells / Q000166:cytology / Q000187:drug effects* / Q000378:metabolism; D007265:Inhibins / Q000494:pharmacology*; D007700:Kinetics; D051381:Rats; D017208:Rats, Wistar; D011962:Receptors, FSH / Q000096:biosynthesis*; D011974:Receptors, LH / Q000096:biosynthesis*; D014158:Transcription, Genetic / Q000187:drug effects*; D015854:Up-Regulation
D011962:Receptors, FSH; D011974:Receptors, LH; D028341:Activins; D007265:Inhibins; D005640:Follicle Stimulating Hormone