title: Mechanism of action of interleukin-1 beta in increasing corticotropin-releasing factor and adrenocorticotropin hormone release from cultured human placental cells.
abstract: The present study evaluated the possible effect and mechanism of action of interleukin-1 beta in regulating the release of corticotropin-releasing factor and adrenocorticotropin hormone from human cultured placental cells. With the use of a primary monolayer culture of human placental cells at term, the addition of interleukin-1 beta increased the release of immunoreactive corticotropin-releasing factor with a dose- and time-dependent effect. The intracellular concentration of both cyclic adenosine monophosphate and cyclic guanosine monophosphate increased in the presence of interleukin-1 beta. The addition of indomethacin, a prostaglandin synthesis inhibitor, partially reversed the effect of interleukin-1 beta. The same doses of interleukin-1 beta stimulated the release of adrenocorticotropin hormone and this effect was partially reversed by the addition of a synthetic corticotropin-releasing factor antagonist or by indomethacin. This study showed that interleukin-1 beta increases the release of corticotropin-releasing factor and adrenocorticotropin hormone from cultured placental cells. This effect is associated with increased intracellular cyclic nucleotide concentrations and is in part reversed by a prostaglandin synthesis inhibitor.
authors.affiliation: Department of Obstetrics and Gynecology, University of Modena School of Medicine, Italy.
authors.forename: F
authors.initials: F
authors.lastname: Petraglia
authors.forename: G C
authors.initials: GC
authors.lastname: Garuti
authors.forename: B
authors.initials: B
authors.lastname: De Ramundo
authors.forename: S
authors.initials: S
authors.lastname: Angioni
authors.forename: A R
authors.initials: AR
authors.lastname: Genazzani
authors.forename: L M
authors.initials: LM
authors.lastname: Bilezikjian
mesh_terms: D000324:Adrenocorticotropic Hormone / Q000378:metabolism*; D002478:Cells, Cultured; D003346:Corticotropin-Releasing Hormone / Q000037:antagonists & inhibitors / Q000378:metabolism*; D000242:Cyclic AMP / Q000032:analysis; D006152:Cyclic GMP / Q000032:analysis; D005260:Female; D006801:Humans; D007213:Indomethacin / Q000494:pharmacology; D007375:Interleukin-1 / Q000494:pharmacology*; D010920:Placenta / Q000166:cytology / Q000187:drug effects / Q000378:metabolism*; D011247:Pregnancy; D011453:Prostaglandins / Q000502:physiology
chemical_list: D007375:Interleukin-1; D011453:Prostaglandins; D000324:Adrenocorticotropic Hormone; D003346:Corticotropin-Releasing Hormone; D000242:Cyclic AMP; D006152:Cyclic GMP; D007213:Indomethacin