Regulation of protective immunity against Leishmania major in mice
β Scribed by Jacques Louis; Hayo Himmelrich; Carlos Parra-Lopez; Fabienne Tacchini-Cottier; Pascal Launois
- Publisher
- Elsevier Science
- Year
- 1998
- Tongue
- English
- Weight
- 799 KB
- Volume
- 10
- Category
- Article
- ISSN
- 0952-7915
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β¦ Synopsis
Resolution of lesions induced by Leishmania major in mice results from the development of Thl responses. Cytokines produced by Th 1 cells activate macrophages to a parasiticidal state. The development of Th2 responses in mice from a few strains underlies susceptibility to infection. Cytokines produced by Th2 cells exacerbate the development of lesions because of their deactivating properties for macrophages. This murine model of infection has provided significant insight into the mechanisms intrinsic to the differentiation of disparate CD4+ T cell subsets in viva in animals from different genetic backgrounds.
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In this study the role of natural killer (NK) cells in the course of experimental Leishmania major infection was investigated. NK cells in genetically resistant C57BLl6 mice were depleted by in vivo administration of anti-asialo-GM1 or anti-NK1.l antibodies. A marked exacerbation of the infection wa
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