Research Article

A Multifactorial Mechanism in the Superior Antimalarial Activity of -C-GalCer

Figure 2

๐›ผ -C-GalCerโ€™s superior therapeutic activity against malaria liver stages requires IL-12 and NK cells. (a) Groups of 5 WT or IL-12-deficient BALB/c mice were treated intraperitoneally (i.p.) with 1โ€‰ ๐œ‡ g of either ๐›ผ -C-GalCer or ๐›ผ -GalCer or with nothing 3 days before challenge intravenously with live P. yoelii sporozoites, and then checked for malaria liver stage development. The results are expressed as the average + / โˆ’ SD of 5 mice. (b) Groups of 5 WT C57BL/6 mice were treated i.p. with PBS or anti-asialoGM1 antibody 1 day prior to i.p. injection with 1โ€‰ ๐œ‡ g of ๐›ผ -C-GalCer or ๐›ผ -GalCer, or with nothing. Three days later the mice were challenged with live P. yoelii sporozoites, and then checked for malaria liver stage development. The results are expressed as the average + / โˆ’ SD of 5 mice. The data shown come from one of three experiments with similar results.
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