Forskolin versus cAMP-Induced Decidualization and Survival of Endometrial Stromal Cells of Endometriosis Patients

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Forskolin and 8-Br-cAMP induced decidualization in endometrial stromal cells from endometriosis patients, with some differences in response and altered cell death resistance compared to controls.

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The study assessed how cAMP signaling and progestins affect decidualization and survival in primary eutopic human endometrial stromal cells from women with and without endometriosis, using 8-Br-cAMP, forskolin, progesterone, and medroxyprogesterone acetate (MPA) individually and in combination. Progestins alone did not induce functional decidualization, whereas 8-Br-cAMP and forskolin induced decidualization measured by prolactin secretion and associated morphological changes, with forskolin inducing lower FOXO1 transcription and prolactin secretion than 8-Br-cAMP. MPA enhanced cAMP-analog–induced prolactin secretion but progesterone did not, and although decidualization decreased cell size and granularity, cells from severe endometriosis showed stronger resistance to cell death, with prolactin showing an anti-proportional relationship to cell death over six days. A limitation is that the experiments were in vitro with pooled/treated stromal cells rather than in vivo assessment of lesion development or pregnancy/peritoneal implantation steps. This paper is centrally about endometriosis — it investigates decidualization, cAMP/progestin signaling, and cell-death resistance in eutopic endometrial stromal cells from endometriosis patients.

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Abstract

Impairment of decidualization of eutopic human endometrial stromal cells (hESCs) may cause an increase in cell survival of endometrial tissue in the peritoneal cavity constituting a precondition for endometriosis development. Decidualization is a physiological process involving progesterone action and cAMP signaling. We here evaluated the effect of 8-Br-cAMP, the adenylate cyclase activator forskolin and of the progestin progesterone and medroxyprogesterone acetate (MPA) alone and in combination on decidualization induction using prolactin ELISA, and on cell size, cell granularity, and cell survival via flow cytometry in hESCs of patients with and without endometriosis. While progestins alone did not induce functional decidualization in hESCs, 8-Br-cAMP and forskolin induced decidualization in hESCs from both cohorts, whereas the induction of FOXO1 transcription and prolactin secretion by forskolin was significantly lower than by 8-Br-cAMP. 8-Br-cAMP- and forskolin-induced prolactin secretion was significantly enhanced by MPA, but not by progesterone. Decidualization entailed a decrease in cell size and in cell granularity. In general, hESCs from women with mild (ASRM I/II) as well as severe (ASRM III/IV) endometriosis in trend displayed a higher granularity, whereas mainly hESCs from severe endometriosis showed a stronger resistance to the induction of cell death after decidualization induction. In both cohorts, the amount of the decidual marker protein prolactin rather exhibited an anti-proportional correlation to cell death induction during six day treatment. This study contributes to widen our understanding of the connection of decidualization and cell death in endometriosis.
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Abstract

Impairment of decidualization of eutopic human endometrial stromal cells (hESCs) may cause an increase in cell survival of endometrial tissue in the peritoneal cavity constituting a precondition for endometriosis development. Decidualization is a physiological process involving progesterone action and cAMP signaling. We here evaluated the effect of 8-Br-cAMP, the adenylate cyclase activator forskolin and of the progestin progesterone and medroxyprogesterone acetate (MPA) alone and in combination on decidualization induction using prolactin ELISA, and on cell size, cell granularity, and cell survival via flow cytometry in hESCs of patients with and without endometriosis. While progestins alone did not induce functional decidualization in hESCs, 8-Br-cAMP and forskolin induced decidualization in hESCs from both cohorts, whereas the induction of FOXO1 transcription and prolactin secretion by forskolin was significantly lower than by 8-Br-cAMP. 8-Br-cAMP- and forskolin-induced prolactin secretion was significantly enhanced by MPA, but not by progesterone. Decidualization entailed a decrease in cell size and in cell granularity. In general, hESCs from women with mild (ASRM I/II) as well as severe (ASRM III/IV) endometriosis in trend displayed a higher granularity, whereas mainly hESCs from severe endometriosis showed a stronger resistance to the induction of cell death after decidualization induction. In both cohorts, the amount of the decidual marker protein prolactin rather exhibited an anti-proportional correlation to cell death induction during six day treatment. This study contributes to widen our understanding of the connection of decidualization and cell death in endometriosis. Similar content being viewed by others Data Availability The data underlying this article will be shared on reasonable request to the corresponding author. Code Availability This is not applicable.

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Sweeney EE, Fan P, Jordan VC. Molecular modulation of estrogen-induced apoptosis by synthetic progestins in hormone replacement therapy: an insight into the women’s health initiative study. Cancer Res. 2014;74:7060–8. https://doi.org/10.1158/0008-5472.Can-14-1784. Acknowledgments The authors thank Hildegard Lax for support in statistical calculation. Funding This work was supported by the Deutsche Forschungsgemeinschaft (DFG grant number GR 1138/14-1, BI 1963/6-1). Author information Authors and Affiliations Contributions All authors participated in the design, interpretation of the studies and analysis of the data, and review of the manuscript. FP and JM conducted the experiments. APB and DBB supplied human endometrial samples. RG and APB created the concept. RG, APB, and BBS developed the methodology. FP and BBS validated the data. FP, JM, and RG wrote the manuscript. GW, BBS, and APB reviewed and edited the manuscript. Corresponding author Ethics declarations Ethical Approval The study was conducted according to the guidelines of the Declaration of Helsinki, and approved by the Institutional Ethics Committee of the University of Düsseldorf (study number 5535, date of approval 24/05/2016). Consent to Participate This is not applicable. Consent for Publication This is not applicable. Conflict of Interest The authors declare no competing interests. Additional information Publisher’s Note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations. Rights and permissions Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. About this article Cite this article Platt, F., Moyer, J., Singer, B.B. et al. Forskolin versus cAMP-Induced Decidualization and Survival of Endometrial Stromal Cells of Endometriosis Patients. Reprod. Sci. 30, 2680–2691 (2023). https://doi.org/10.1007/s43032-023-01235-7 Received: Accepted: Published: Version of record: Issue date: DOI: https://doi.org/10.1007/s43032-023-01235-7

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endometriosis

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Endometriosis Endometriosis Endometriosis Endometriosis Endometriosis Endometriosis Endometriosis Endometriosis Endometriosis Endometriosis Endometriosis Endometriosis Endometriosis Endometriosis Endometriosis Endometriosis Endometriosis Endometriosis Endometriosis Endometriosis

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