Publication: Antigen-specific NK cell memory in rhesus macaques
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2015
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Reeves, R. K., H. Li, S. Jost, E. Blass, H. Li, J. L. Schafer, V. Varner, et al. 2015. “Antigen-specific NK cell memory in rhesus macaques.” Nature immunology 16 (9): 927-932. doi:10.1038/ni.3227. http://dx.doi.org/10.1038/ni.3227.
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Abstract
Natural killer (NK) cells have traditionally been considered nonspecific components of innate immunity, but recent studies have shown features of antigen-specific memory in murine NK cells. However, it has remained unclear whether this phenomenon also exists in primates. Compared to NK cells from uninfected macaques, we found splenic and hepatic NK cells from SHIV-SF162P3- and SIVmac251-infected animals specifically lysed Gag- and Env-pulsed dendritic cells (DCs) in an NKG2-dependent fashion. Moreover, splenic and hepatic NK cells from Ad26-vaccinated macaques efficiently lysed antigen-matched but not antigen-mismatched targets 5 years post-vaccination. These data demonstrate that robust, durable, antigen-specific NK cell memory can be induced in primates following both infection and vaccination, and could be important for vaccines against HIV-1 and other pathogens.
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