Abstract
The present studies have demonstrated that infant monkey granulosa cells, like the adult ones, have the potential of responding markedly in vitro to human FSH, cyclic-AMP and forskolin, resulting in the increase of progesterone and estrogen production. Exogenous hCG was also capable of increasing FSH-stimulated progesterone biosynthesis in both infant and adult granulosa cells, but did not stimulate the infant granulosa cells to secrete estrogen. Addition of a synthetic estrogen, diethylstilbestrol, to the culture of monkey granulosa cells enhanced the FSH-stimulated progesterone and estrogen production. The steroidogenesis of monkey granulosa cells was also dramatically stimulated by a gonadotropin-releasing hormone agonist. Monkey granulosa cells, unlike the other animal cells, secrete measurable amount of estrogen in the absence of androgen substrate. The findings reported here are significant in regard to understanding of the mechanism of hormonal regulation of primate ovarian function.
Published Version
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