Enhancement of cortisol-induced 11β-hydroxysteroid dehydrogenase type 1 expression by interleukin 1β in cultured human chorionic trophoblast cells

Wenjiao Li, Lu Gao, Yan Wang, Tao Duan, Leslie Myatt, Kang Sun

Research output: Contribution to journalArticle

36 Citations (Scopus)

Abstract

Chorion is the most abundant site of 11β-hydroxysteroid dehydrogenase type 1 (11β-HSD1) expression within intrauterine tissues. It is important to study the regulation of 11β-HSD1 expression in the chorion in terms of local cortisol production during pregnancy. Using real-time PCR and enzyme activity assay, we found that cortisol (1 μM) and IL-1β (10 ng/ml) for 24 h significantly increased 11β-HSD1 mRNA expression and reductase activity in cultured human chorionic trophoblasts. A further significant increase of 11β-HSD1 mRNA expression and reductase activity was observed with cotreatment of cortisol and IL-1β. To explore the mechanism of induction, 11β-HSD1 promoter was cloned into pGL3 plasmid expressing a luciferase reporter gene. By transfecting the constructed vector into WISH cells, an amnion-derived cell line, we found that cortisol (1 μM) or IL-1β (10 ng/ml) significantly increased reporter gene expression. Likewise, an additional increase in reporter gene expression was observed with cotreatment of cortisol and IL-β. To explore the physiological significance of 11β-HSD1 induction in the chorion, we studied the effect of cortisol on cytosolic phospholipase A2 and cyclooxygenase 2 expression. We found that treatment of chorionic trophoblast cells with cortisol (1 μM) induced both cytosolic phospholipase A2 and cyclooxygenase 2 mRNA expression. We conclude that cortisol up-regulates 11β-HSD1 expression through induction of promoter activity, and the effect was enhanced by IL-1β, suggesting that more biologically active glucocorticoids could be generated in the fetal membranes in the presence of infection, which may consequently feed forward in up-regulation of prostaglandin synthesis.

Original languageEnglish (US)
Pages (from-to)2490-2495
Number of pages6
JournalEndocrinology
Volume147
Issue number5
DOIs
StatePublished - May 2006
Externally publishedYes

Fingerprint

11-beta-Hydroxysteroid Dehydrogenases
Trophoblasts
Interleukin-1
Hydrocortisone
Chorion
Reporter Genes
Cytosolic Phospholipases A2
Cyclooxygenase 2
Interleukin-10
Messenger RNA
Oxidoreductases
Up-Regulation
Gene Expression
Extraembryonic Membranes
Amnion
Enzyme Assays
Luciferases
Glucocorticoids
Prostaglandins
Real-Time Polymerase Chain Reaction

ASJC Scopus subject areas

  • Endocrinology
  • Endocrinology, Diabetes and Metabolism

Cite this

Enhancement of cortisol-induced 11β-hydroxysteroid dehydrogenase type 1 expression by interleukin 1β in cultured human chorionic trophoblast cells. / Li, Wenjiao; Gao, Lu; Wang, Yan; Duan, Tao; Myatt, Leslie; Sun, Kang.

In: Endocrinology, Vol. 147, No. 5, 05.2006, p. 2490-2495.

Research output: Contribution to journalArticle

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