Intrathecal production of interleukin-12 and gamma-interferon in patients with bacterial meningitis

R.F. Kornelisse, C.E. Hack, H.F.J. Savelkoul, T.C.T.M. van der Pouw-Kraan, W.C.J. Hop, G. van Mierlo, M.H. Suur, H.J. Neijens, R. de Groot

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Abstract

To assess the role of interleukin-12 (IL-12) and gamma interferon (IFN-gamma) in children with bacterial meningitis, bioactive IL-12 (p70) and the inactive subunit p40 and IFN-gamma were measured in serum and cerebrospinal fluid (CSF) from 35 children with bacterial meningitis and 10 control subjects. The production of IFN-gamma is induced by IL-12 with tumor necrosis factor alpha (TNF-alpha) as a costimulator and inhibited by IL-10. CSF concentrations of IL-12 p40 as well as those of IFN-gamma were markedly elevated, whereas IL-12 p70 was hardly detectable. Detectable CSF levels of IFN-gamma correlated positively with IL-12 p40 (r = 0.40, P = 0.02) and TNF-alpha (r = 0.46, P = 0.04) but not with IL-6, IL-8, or IL-10. In contrast to CSF levels of TNF-alpha, IL-12, and IL-10, those of IFN-gamma were significantly higher in patients with pneumococcal meningitis than in children with meningitis caused by Haemophilus influenzae and Neisseria meningitidis, presumably because of a high CSF TNF-alpha/IL-10 ratio in the former. We suggest that IL-12- and TNF-alpha-induced IFN-gamma production may contribute to the natural immunity against microorganisms in the CSF compartment during the acute phase of bacterial meningitis. -------------------------------------------------------------------------------- Write to PMC | PMC Home | PubMed NCBI | U.S. National Library of Medicine NIH | Department of Health and Human Services Privacy Policy | Disclaimer | Freedom of Information Act
Original languageEnglish
Pages (from-to)877-881
JournalInfection and Immunity
Volume65
Issue number3
Publication statusPublished - 1997
Externally publishedYes

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    Kornelisse, R. F., Hack, C. E., Savelkoul, H. F. J., van der Pouw-Kraan, T. C. T. M., Hop, W. C. J., van Mierlo, G., Suur, M. H., Neijens, H. J., & de Groot, R. (1997). Intrathecal production of interleukin-12 and gamma-interferon in patients with bacterial meningitis. Infection and Immunity, 65(3), 877-881. http://iai.asm.org/cgi/content/abstract/65/3/877