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ORIGINAL ARTICLE
Year : 2020  |  Volume : 4  |  Issue : 4  |  Page : 195-203

Luteotropic roles of glucocorticoids in rat granulosa cells


Department of Pharmacy, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing 210004, Jiangsu, China

Correspondence Address:
Xin-Yan Huang
Women's Hospital of Nanjing Medical University, No. 123, Tianfei Lane, Nanjing 210004, Jiangsu
China
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/2096-2924.305933

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Objective: The study objective was to investigate whether endogenous glucocorticoids directly impact the functions and proliferation/apoptosis of ovarian granulosa cells. Methods: Primary rat ovarian granulosa cells were cultured and treated with graded concentrations of corticosterone either alone or in the presence of the indicated drugs. After 48 h of treatment, the cells and growth media were collected to measure intracellular and extracellular progesterone/estradiol concentrations, and steroid secretion ratios were obtained by parameter calculation. The number of granulosa cells was determined by Cell Counting Kit-8. To determine the impact on cell numbers, granulosa cell proliferation was detected using the BrdU incorporation method and cell apoptosis was detected by flow cytometry. Results: First, high corticosterone concentrations significantly stimulated progesterone synthesis/secretion and inhibited estradiol synthesis in cultured granulosa cells. Second, accompanied by follicle-stimulating hormone, high corticosterone concentrations promoted progesterone synthesis/release and estradiol release. Last, high corticosterone concentrations increased the cell number and suppressed apoptosis but did not induce cell proliferation. Conclusions: These indicate that high glucocorticoid concentrations may play luteotropic roles in the functions and number of corpora lutea.


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