Abstract
Cross-presentation is the pathway by which exogenous antigens are routed for presentation on MHC class I for activation of CD8+ T cells. This pathway is important for the development of CD8+ cytotoxic T lymphocyte responses against tumors and infectious pathogens that do not directly infect APC. We review studies showing that certain Toll-like receptors mediate cross-presentation by dendritic cells, initiating cytosolic processing of antigen after inducing dendritic cell maturation. The implications of these studies for understanding CD8+ T cell activation and implementing novel vaccine strategies is considered.
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Acknowledgments
This work was supported by NIH grants AI52406 (S.K.D.), AI40682 (E.R), AI-58743 (E.R.), and a grant from Dynavax Technologies (E.R.).
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Datta, S.K., Raz, E. Induction of antigen cross-presentation by Toll-like receptors. Springer Semin Immun 26, 247–255 (2005). https://doi.org/10.1007/s00281-004-0174-2
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DOI: https://doi.org/10.1007/s00281-004-0174-2