Progesterone Receptor Serves the Ovary as a Trigger of Ovulation and a Terminator of Inflammation
Cell Reports, Volume 31, No. 2, Article 107496, Year 2020
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A preovulatory LH surge induces the expression of PGR and the production of PGE2, a proinflammatory prostaglandin, in preovulatory granulosa cells. Park et al. show that PGR then suppresses PGE2 synthesis by decreasing the expression of PTGS2. Such PGR-driven termination temporarily confines ovulatory inflammation within a short period.