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© Research
Publication : Nature immunology

Dynamics of CD8+ T cell priming by dendritic cells in intact lymph nodes

Scientific Fields
Diseases
Organisms
Applications
Technique

Published in Nature immunology - 05 May 2003

Bousso P, Robey E

Link to Pubmed [PMID] – 12730692

Nat. Immunol. 2003 Jun;4(6):579-85

The cellular dynamics underlying activation of CD8+ T cells by dendritic cells (DCs) in the lymph node are not known. Here we have tracked the behavior of T cells and DCs by subjecting intact lymph nodes to real-time two-photon microscopy. We show that DCs scan at least 500 different T cells per hour in the absence of antigen. Antigen-bearing DCs are highly efficient in recruiting peptide-specific T cells and can engage more than ten T cells simultaneously. The duration of these interactions is of the order of hours, not minutes. The overall avidity of the interaction influences the probability that T cells will be stably captured by DCs, providing a possible basis for T cell competition. Taken together, our results identify the cellular behaviors that promote an efficient CD8+ T cell response in the lymph node.

http://www.ncbi.nlm.nih.gov/pubmed/12730692