The production of progesterone, androgens, and estrogens by granulosa cells, thecal tissue, and stromal tissue from human ovaries in vitro

The Journal of Clinical Endocrinology and Metabolism
K P McNattyK J Ryan

Abstract

The concentrations of steroids in antral fluid, the number of granulosa cells, the status of the oocyte, and the diameter of each follicle were determined in human ovaries so that follicles at each stage of the menstrual cycle could be classified as large (greater than or equal to 8 mm diameter) or small (less than 8 mm diameter) and healthy or atretic. The granulosa cells and thecal-enriched tissue from each follicle and the stromal tissue from each ovary were cultured for 6 days in vitro. The amounts of progesterone (P), androstenedione (delta 4), testosterone, dihydrotestosterone, estrone, and estradiol (E2) generated by the different tissues were measured on days 0, 2, 4, and 6 of culture. It was found that granulosa cells, thecal tissue, and stromal tissue all have the biosynthetic capacity to produce P, delta 4, testosterone, dihydrotestosterone, estrone, and E2. No individual steroid-secreting compartment of the ovaries studied, whether part of the follicle or of the stroma, had the exclusive capability of producing any of the above-named steroids at any stage of the menstrual cycle or at any stage of antral follicle growth or atresia. Although the steroids produced by the human follicle appear not to be unique to any on...Continue Reading

Citations

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