Critical role for the chemokine receptor CXCR6 in NK cell–mediated antigen-specific memory of haptens and viruses
Open Access
- 24 October 2010
- journal article
- research article
- Published by Springer Science and Business Media LLC in Nature Immunology
- Vol. 11 (12), 1127-1135
- https://doi.org/10.1038/ni.1953
Abstract
NK cells confer innate immune functions. Von Andrian and colleagues show that hepatic NK cells bearing CXCR6 receptors confer antigen-specific NK cell memory that is protective against various viruses. Hepatic natural killer (NK) cells mediate antigen-specific contact hypersensitivity (CHS) in mice deficient in T cells and B cells. We report here that hepatic NK cells, but not splenic or naive NK cells, also developed specific memory of vaccines containing antigens from influenza, vesicular stomatitis virus (VSV) or human immunodeficiency virus type 1 (HIV-1). Adoptive transfer of virus-sensitized NK cells into naive recipient mice enhanced the survival of the mice after lethal challenge with the sensitizing virus but not after lethal challenge with a different virus. NK cell memory of haptens and viruses depended on CXCR6, a chemokine receptor on hepatic NK cells that was required for the persistence of memory NK cells but not for antigen recognition. Thus, hepatic NK cells can develop adaptive immunity to structurally diverse antigens, an activity that requires NK cell–expressed CXCR6.Keywords
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