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The role of interleukin-6 in the human adrenal gland.
Eur. J. Clin. Invest. 30, 91-95 (2000)
Interleukin (IL)-6 is a potent activator of the hypothalamic-pituitary-adrenal (HPA) axis on all levels in humans, and appears to play a pathogenic role in conditions related to chronic stress and physiological ageing; with physiological ageing showing a similar hormonal and immunological pattern to chronic stress. IL-6 and its receptor IL-6R are co-expressed at similar sites in the human adrenal gland, which seems to be an important source of IL-6 production. In vitro, in primary cultures of adrenal gland cells, chronic exposure to IL-6 stimulates adrenocortical steroid release in a time- and dose-dependent manner. This explains the high systemic cortisol levels in the absence of adequate plasma concentrations of corticotropin (ACTH) observed in patients after long-term treatment with IL-6. It could therefore be concluded that in situations of prolonged stress, when corticotropin-releasing hormone and ACTH release are suppressed by feedback inhibition due to circulating glucocorticoids, IL-6 maintains the elevated glucocorticoid levels by direct stimulation of adrenocortical steroidogenesis via autocrine/paracrine mechanisms.
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Publication type
Article: Journal article
Document type
Scientific Article
Language
english
Publication Year
2000
HGF-reported in Year
0
ISSN (print) / ISBN
0014-2972
e-ISSN
1365-2362
Quellenangaben
Volume: 30,
Pages: 91-95
Publisher
Wiley
Publishing Place
Hoboken
Reviewing status
Peer reviewed
Institute(s)
Institute of Pancreatic Islet Research (IPI)
PubMed ID
11281377
Erfassungsdatum
2000-12-31