Journal
JOURNAL OF MEDICINAL CHEMISTRY
Volume 50, Issue 3, Pages 585-589Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jm061243q
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alpha-GalCer is the first defined and most potent agonistic antigen of the T cell receptor of natural killer T cells. We have prepared a series of 1,2,3-triazole-containing alpha-GalCer analogues in which the lipid chain lengths have been incrementally varied. We found that this isosteric replacement of alpha-GalCer's amide moiety with triazole increases the IL-4 versus IFN-gamma bias of released cytokines. The stimulatory effect was influenced by the length of the attached chain. In particular, the long-chained triazole analogues have a comparable stimulatory effect on cytokine production as alpha-GalCer and exhibit a stronger Th2 cytokine response.
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