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. 1988 Feb;63(2):299–302.

Glucocorticoids suppress the production of tumour necrosis factor by lipopolysaccharide-stimulated human monocytes.

A Waage 1, O Bakke 1
PMCID: PMC1454529  PMID: 3350575

Abstract

We have investigated the modulating effect of steroids on the in vitro production of tumour necrosis factor (TNF) by lipopolysaccharide (LPS)-stimulated human monocytes. Dexamethasone, at concentrations ranging from 10(-8) to 10(-6) M, and cortisol, at concentrations 10(-7) and 10(-6) M, suppressed the TNF production in a dose-dependent manner. The highest concentrations of dexamethasone or cortisol reduced the TNF production to 21 +/- 2% and 48 +/- 8% of the control value, respectively. The effect of dexamethasone was time dependent, and an incubation time of 48 hr was required to reduce the TNF production to 21% of control. The effect of dexamethasone decreased when the incubation time became shorter, and the mean TNF production ranged from 49% to 72% of control when dexamethasone was added later than 8 hr before LPS addition, at the time of LPS addition, or within 1 hr after LPS addition. The magnitude of the TNF-suppressing effect of dexamethasone varied greatly from donor to donor. Only the glucocorticoids, and not the sex steroids or the mineralocorticoids, significantly reduced the TNF production.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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