Cited by 440Stress Responses and CortisolHypothalamic control of reproductive hormonesPregnancy-related medical research

Glucocorticoid stimulates expression of corticotropin-releasing hormone gene in human placenta.

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Robinson, B G, Emanuel, R L, Frim, D M, Majzoub, J A·1988·Proceedings of the National Academy of Sciences

Abstract

Primary cultures of purified human cytotrophoblasts have been used to examine the expression of the corticotropin-releasing hormone (CRH) gene in placenta. We report here that glucocorticoids stimulate placental CRH synthesis and secretion in primary cultures of human placenta. This stimulation is in contrast to the glucocorticoid suppression of CRH expression in hypothalamus. The positive regulation of CRH by glucocorticoids suggests that the rise in CRH preceding parturition could result from the previously described rise in fetal glucocorticoids. Furthermore, this increase in placental CRH could stimulate, via adrenocorticotropic hormone, a further rise in fetal glucocorticoids, completing a positive feedback loop that would be terminated by delivery.

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Crossref · 10.1073/pnas.85.14.5244

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  • CRH produced in the placenta can stimulate ACTH production in the pituitary, leading to elevated levels of glucocorticoids.

    “Interestingly, CRH produced in the placenta can stimulate ACTH production in the pituitary, leading to elevated levels of glucocorticoids.”
  • Glucocorticoids stimulate placental CRH synthesis and secretion in cultured human cytotrophoblasts.

    “In turn, glucocorticoids have been shown to stimulate placental CRH synthesis and secretion in cultured human cytotrophoblasts [70].”

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Authors
Robinson, B. G., Emanuel, R. L., Frim, D. M., & Majzoub, J. A.
Affiliations
Howard Hughes Medical Institute (US)
Venue
Proceedings of the National Academy of Sciences
Published
1988-07
Volume
85
Issue
14
Pages
5244-5248
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W1997530953
Cited by
440
References
1
Citations by year
2026: 6 · 2025: 5 · 2024: 8 · 2023: 4 · 2022: 9 · 2021: 6 · 2020: 11 · 2019: 15 · 2018: 12 · 2017: 14 · 2016: 12 · 2015: 14 · 2014: 12 · 2013: 18 · 2012: 11
FWCI
6.58
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
  • Health Sciences › Medicine › Reproductive Medicine › Hypothalamic control of reproductive hormones
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Pregnancy-related medical research
Keywords
corticotropin-releasing factor, glucocorticoids, human placenta, cytotrophoblast, CRH gene expression, childbirth, fetal glucocorticoids, ACTH, positive feedback loop
MeSH terms
Cells, Cultured, Corticotropin-Releasing Hormone, Dexamethasone, Endoribonucleases, Female, Gene Expression Regulation, Glucocorticoids, Histocytochemistry, Humans, Immunoenzyme Techniques, Nucleic Acid Hybridization, Placenta, Pregnancy, RNA, Messenger, Transcription, Genetic, Trophoblasts, Ribonuclease H

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