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Title: CD11b+ Migratory Dendritic Cells Mediate CD8 T Cell Cross-Priming and Cutaneous Imprinting after Topical Immunization
Authors: Nizza, Suzanne T.;Campbell, James J.
subject: Biology;Immunology;Immune Cells;Antigen-Presenting Cells;T Cells;Immune System;Lymphoid Organs;Immunity;Immune Activation;Antigen Processing and Recognition;Immune Response;Immunologic Techniques;Medicine;Clinical Immunology
Year: 2014
Publisher: Public Library of Science
Description: Topical antigen application is a focus of current vaccine research. This immunization route mimics natural antigen exposure across a barrier tissue and generates T cells imprinted for skin-selective homing. Soluble antigens introduced through this route require cross-presentation by DC to generate CD8 T cell responses. Here we have explored the relative contribution of various skin-derived DC subsets to cross-priming and skin-selective imprinting. In our model, DC acquire soluble Ag in vivo from immunized murine skin for cross-presentation to naïve CD8 T cells ex vivo. We find CD11b+ migratory DC to be the relevant cross-priming DC in this model. Both Langerin+ and Langerin- CD11b+ migratory DC can cross-present antigen in our system, but only the Langerin+ subset can induce expression of the skin-selective addressin E-selectin ligand. Thus, the CD11b+ Langerin+ migratory DC population, comprised primarily of Langerhans cells, both cross-primes naïve CD8 T cells and imprints them with skin-homing capabilities.
Standard no: Nizza, Suzanne T., and James J. Campbell. 2014. “CD11b+ Migratory Dendritic Cells Mediate CD8 T Cell Cross-Priming and Cutaneous Imprinting after Topical Immunization.” PLoS ONE 9 (3): e91054. doi:10.1371/journal.pone.0091054.
Appears in Collections:HMS Scholarly Articles

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