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Benoit J, Rodway M, Yuen BH, et al. Effects of cyclic adenosine monophosphate on human chorionic gonadotropin and estradiol output by cultured human placental cells. Am J Obstet Gynecol. 1988;158(2):328-32doi: 10.1016/0002-9378(88)90148-2.
Benoit, J., Rodway, M., Yuen, B. H., & Leung, P. C. (1988). Effects of cyclic adenosine monophosphate on human chorionic gonadotropin and estradiol output by cultured human placental cells. American journal of obstetrics and gynecology, 158(2), 328-32. https://doi.org/10.1016/0002-9378(88)90148-2
Benoit, J, et al. "Effects of cyclic adenosine monophosphate on human chorionic gonadotropin and estradiol output by cultured human placental cells." American journal of obstetrics and gynecology vol. 158,2 (1988): 328-32. doi: https://doi.org/10.1016/0002-9378(88)90148-2
Benoit J, Rodway M, Yuen BH, Leung PC. Effects of cyclic adenosine monophosphate on human chorionic gonadotropin and estradiol output by cultured human placental cells. Am J Obstet Gynecol. 1988 Feb;158(2):328-32. doi: 10.1016/0002-9378(88)90148-2. PMID: 2963543.
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Am J Obstet Gynecol. 1988 Feb;158(2):328-32. doi: 10.1016/0002-9378(88)90148-2.

Effects of cyclic adenosine monophosphate on human chorionic gonadotropin and estradiol output by cultured human placental cells.

American journal of obstetrics and gynecology

J Benoit, M Rodway, B H Yuen, P C Leung

Affiliations

  1. Department of Obstetrics and Gynecology, University of British Columbia, Grace Hospital, Vancouver, Canada.

PMID: 2963543 DOI: 10.1016/0002-9378(88)90148-2

Abstract

We have previously shown that adenosine-3',5'-cyclic monophosphate (cAMP) inhibits basal estradiol output in human trophoblast cells. The objective of this study was to investigate further the effect of 8-bromo-cAMP on the conversion of C19 androgens to estradiol by placental cells. Trophoblast cells were prepared from human term placenta and maintained in monolayer culture. On days 3 and 4 of culture, these cells were treated with dehydroepiandrosterone sulfate, androstenedione, or testosterone with or without the concomitant presence of 8-Br-cAMP. 8-Br-cAMP markedly enhanced human chorionic gonadotropin secretion into the culture medium. On the other hand, the concomitant addition of 8-Br-cAMP with the androgen precursors led to an inhibition of estradiol output. The concentrations of androstenedione and dehydroepiandrosterone in the culture medium after treatment with dehydroepiandrosterone sulfate were elevated by the concomitant presence of 8-Br-cAMP. From these results we conclude that 8-Br-cAMP enhances human chorionic gonadotropin output in human term placental cells, whereas the presence of 8-Br-cAMP in cells given androgen precursors inhibits estradiol output, probably at the level of aromatization.

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