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Parasite Immunol. 2000 Mar;22(3):157-60.

Interferon-gamma-independent CD8+ T cell-mediated protective anti-malaria immunity elicited by recombinant adenovirus.

Author information

1
Department of Medical and Molecular Parasitology, New York University School of Medicine, New York, NY 10010, USA.

Abstract

Recombinant adenovirus, expressing the CS protein of Plasmodium yoelii, AdPyCS, was shown to induce a comparable degree of T cell-mediated protection against malaria as a single dose of irradiated P. yoelii sporozoites, causing inhibition of liver stage development. We now report that differently from sporozoite-induced immunity, interferon (IFN)-gamma does not mediate the protective immunity induced by AdPyCS, since a similar degree of protection was observed in AdPyCS immunized mice lacking IFN-gamma-/- and the IFN-gamma receptor (IFN-gammaR-/-) compared to that in wild-type mice. Depletion of CD8+ T cells from these immunized mice almost completely abolished the AdPyCS-induced immunity, indicating that the immunization with AdPyCS induces CD8+ T cell-mediated protective anti-malaria immunity, which is independent of IFN-gamma.

PMID:
10672197
[Indexed for MEDLINE]
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