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Sporozoite Vaccine Induces Genetically Restricted T Cell Elimination of Malaria from Hepatocytes.

机译:子孢子疫苗诱导遗传限制性T细胞从肝细胞中消除疟疾。

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The target of the CD8(+) T cell-dependent immunity that protects mice immunized with irradiation-attenuated malaria sporozoites has not been established. Immune BALB/c mice were shown to develop malaria-specific, CD8 T cell-dependent inflammatory infiltrates in their livers after challenge with Plasmodium berghei sporozoites. Spleen cells from immune BALB/c and C57BL/6 mice eliminated hepatocytes infected with the liver stage of P. berghei in vitro. The activity against infected hepatocytes is not inhibited by antibodies to interferon gamma and is not present in culture supernatants. It is genetically restricted, an indication that malaria antigens on the hepatocyte surface are recognized by immune T effector cells. Subunit vaccine development will require identification of the antigens recognized by these T cells and a method of immunization that induces such immunity. Keywords:Malaria; Plasmodium; Berghei; Sporozoites; Cytotoxic T Lymphocytes; T cells; Malaria; Liver stage; Reprints. (KT)

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