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Immune regulation of protection and pathogenesis in Plasmodium falciparum malaria.
Umeå University, Faculty of Medicine, Clinical Microbiology, Clinical Immunology. Umeå University, Faculty of Medicine, Clinical Microbiology.
1999 (English)In: Parassitologia, ISSN 0048-2951, Vol. 41, no 1-3, 131-8 p.Article in journal (Refereed) Published
Abstract [en]

The immune mechanisms whereby malaria parasites are eliminated by the human host or how they may avoid the immune response are poorly understood. Individuals living in malaria-endemic areas gradually acquire immunity. It is well established that this immunity involves both cell-mediated and humoral mechanisms and that T cells are the major regulators in both these events. The existence of functionally distinct P. falciparum-specific CD4+ T-cell subsets in humans has been shown in several studies. However, in contrast to what is the case in murine models there is no definitive link between the activation of various T cells and the course of human P. falciparum blood-stage infection. In the present paper we will review recent findings which illustrate how the balance between functionally different T-cell subsets affects the development of malaria immunity but also may contribute to its pathogenicity. An example of the latter is the deposition of IgE-containing immune complexes in small vessels, probably leading to local overproduction of tumor-necrosis factor (TNF), a pathogenic factor in malaria.

Place, publisher, year, edition, pages
1999. Vol. 41, no 1-3, 131-8 p.
URN: urn:nbn:se:umu:diva-21518PubMedID: 10697845OAI: diva2:211366
Available from: 2009-04-14 Created: 2009-04-14 Last updated: 2009-04-14

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