Previous Article | Next Article ![]()
Infect. Immun., Feb 1997, 564-570, Vol 65, No. 2
E Cenci, S Perito, KH Enssle, P Mosci, JP Latge, L Romani and F Bistoni
With a murine model of invasive aspergillosis we investigated cytokine
production by CD4+ T helper cells and the effects of cytokine
administration or neutralization on the course and outcome of infection.
Patterns of susceptibility and resistance to infection were obtained with
different strains of mice injected with different inocula of Aspergillus
fumigatus conidia. Mice surviving the primary infection also resisted a
subsequent lethal infection that was associated with production of gamma
interferon by CD4+ T splenocytes. Impaired neutrophil antifungal activity,
observed in susceptible mice, was concomitant with a predominant production
of interleukin-4 (IL-4) by CD4+ splenocytes. In these mice, exogenous
administration of IL-12 failed to induce resistance to infection; in
contrast, treatment with soluble IL-4 receptor cured more than 70% of the
mice from primary infection and resulted in the onset of acquired
resistance to a subsequent lethal infection. These findings indicate that
in murine invasive aspergillosis, production of IL-4 by CD4+ T cells may be
one major factor discriminating susceptibility and resistance to infection.
Copyright © 1997, American Society for Microbiology
Th1 and Th2 cytokines in mice with invasive aspergillosis
Microbiology Section, Department of Experimental Medicine and Biochemical Sciences, University of Perugia, Italy.
This article has been cited by other articles:
| J. Bacteriol. | J. Virol. | Eukaryot. Cell |
|---|
| Microbiol. Mol. Biol. Rev. | Clin. Vaccine Immunol. | All ASM Journals |
|---|