Regulation of Murine Cerebral Malaria Pathogenesis by CD1d-restricted NKT Cells and the Natural Killer Complex

Overview

Journal Immunity

Publisher Cell Press

Specialty Allergy & Immunology

Date 2003 Mar 22

PMID 12648456

Citations 63

Authors

Diana S Hansen

Mary-Anne Siomos

Lynn Buckingham

Anthony A Scalzo

Louis Schofield

Affiliations

Soon will be listed here.

Abstract

NKT cells are specialized cells coexpressing NK and T cell receptors. Upon activation they rapidly produce high levels of interferon-gamma (IFN-gamma) and interleukin-4 (IL-4) and are therefore postulated to influence T(H)1/T(H)2 immune responses. The precise role of the CD1/NKT cell pathway in immune response to infection remains unclear. We show here that CD1d-restricted NKT cells from distinct genetic backgrounds differentially influence T(H)1/T(H)2 polarization, proinflammatory cytokine levels, pathogenesis, and fatality in the P. berghei ANKA/rodent model of cerebral malaria. The functional properties of CD1d-restricted NKT cells vary according to expression of loci of the natural killer complex (NKC) located on mouse chromosome 6, which is shown here to be a significant genetic determinant of murine malarial fatalities.

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