Prostaglandin-E2 is a potent inhibitor of human interleukin 12 production - PubMed (original) (raw)

Prostaglandin-E2 is a potent inhibitor of human interleukin 12 production

T C van der Pouw Kraan et al. J Exp Med. 1995.

Abstract

During human immunodeficiency virus infection and allergic diseases, characterized by a dominant T helper (Th) 2 response, overproduction of prostaglandin E2 (PGE2) is observed. In this paper we studied the effect of PGE2 on interleukin (IL)-12 synthesis, because this cytokine has been described to be essential in induction of Th1 responses. IL-12 synthesis was induced in monocytes that were stimulated with Neisseria meningitidis-derived lipopolysaccharide in whole blood cultures. PGE2 almost completely inhibited lipopolysaccharide induced IL-12 production, whereas IL-6 production was only partially inhibited by PGE2. In contrast, the production of IL-10 was approximately twofold enhanced at these conditions. The effects of PGE2 were due to its cAMP-inducing capacity, since they could be mimicked by other cAMP inducers. Recombinant human IL-10 also inhibited IL-12 and IL-6 production. However, the inhibitory effect of PGE2 on IL-12 production was independent of IL-10 since neutralizing anti-IL-10 antibodies were unable to reverse this inhibition. These results suggest that the capacity of an antigen to induce PGE2 synthesis may play a crucial role in the development of either a Th1 or Th2 response.

PubMed Disclaimer

Similar articles

Cited by

References

    1. J Immunol. 1991 May 1;146(9):3074-81 - PubMed
    1. J Immunol. 1991 Jan 1;146(1):108-13 - PubMed
    1. Immunol Today. 1991 Aug;12(8):256-7 - PubMed
    1. Immunol Today. 1991 Oct;12(10):349-52 - PubMed
    1. Immunology. 1992 Mar;75(3):391-7 - PubMed

Publication types

MeSH terms

Substances

LinkOut - more resources