Glycolipid antigen induces long-term natural killer T cell anergy in mice

Vrajesh V. Parekh, Michael T. Wilson, Danyvid Olivares-Villagómez, Avneesh K. Singh, Lan Wu, Chyung Ru Wang, Sebastian Joyce, Luc Van Kaer*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

313 Scopus citations

Abstract

Natural killer T (NKT) cells recognize glycolipid antigens presented by the MHC class I-related glycoprotein CD1d. The in vivo dynamics of the NKT cell population in response to glycolipid activation remain poorly understood. Here, we show that a single administration of the synthetic glycolipid α-galactosylceramide (α-GalCer) induces long-term NKT cell unresponsiveness in mice. NKT cells failed to proliferate and produce IFN-γ upon α-GalCer restimulation but retained the capacity to produce IL-4. Consequently, we found that activation of anergic NKT cells with α-GalCer exacerbated, rather than prevented, B16 metastasis formation, but that these cells retained their capacity to protect mice against experimental autoimmune encephalomyelitis. NKT cell anergy was induced in a thymus-independent manner and maintained in an NKT cell-autonomous manner. The anergic state could be broken by IL-2 and by stimuli that bypass proximal TCR signaling events. Collectively, the kinetics of initial NKT cell activation, expansion, and induction of anergy in response to α-GalCer administration resemble the responses of conventional T cells to strong stimuli such as superantigens. Our findings have important implications for the development of NKT cell-based vaccines and immunotherapies.

Original languageEnglish (US)
Pages (from-to)2572-2583
Number of pages12
JournalJournal of Clinical Investigation
Volume115
Issue number9
DOIs
StatePublished - Sep 2005

ASJC Scopus subject areas

  • Medicine(all)

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