First Author | Soderquest K | Year | 2011 |
Journal | J Immunol | Volume | 186 |
Issue | 6 | Pages | 3304-8 |
PubMed ID | 21307295 | Mgi Jnum | J:169767 |
Mgi Id | MGI:4942220 | Doi | 10.4049/jimmunol.1004122 |
Citation | Soderquest K, et al. (2011) Cutting Edge: CD8+ T Cell Priming in the Absence of NK Cells Leads to Enhanced Memory Responses. J Immunol 186(6):3304-8 |
abstractText | It is uncertain whether NK cells modulate T cell memory differentiation. By using a genetic model that allows the selective depletion of NK cells, we show in this study that NK cells shape CD8(+) T cell fate by killing recently activated CD8(+) T cells in an NKG2D- and perforin-dependent manner. In the absence of NK cells, the differentiation of CD8(+) T cells is strongly biased toward a central memory T cell phenotype. Although, on a per-cell basis, memory CD8(+) T cells generated in the presence or the absence of NK cells have similar functional features and recall capabilities, NK cell deletion resulted in a significantly higher number of memory Ag-specific CD8(+) T cells, leading to more effective control of tumors carrying model Ags. The enhanced memory responses induced by the transient deletion of NK cells may provide a rational basis for the design of new vaccination strategies. |