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Reciprocal and dynamic control of CD8 T cell homing by dendritic cells from skin- and gut-associated lymphoid tissues

Open access
Mora, J. Rodrigo, Cheng, Guiying, Picarella, Dominic, Briskin, Michael, Buchanan, Natasha, von Andrian, Ulrich H.·2005·The Journal of Experimental Medicine

Abstract

T cell activation by intestinal dendritic cells (DC) induces gut-tropism. We show that, reciprocally, DC from peripheral lymph nodes (PLN-DC) induce homing receptors promoting CD8 T cell accumulation in inflamed skin, particularly ligands for P- and E-selectin. Differential imprinting of tissue-tropism was independent of Th1/Th2 cytokines and not restricted to particular DC subsets. Fixed PLN-DC retained the capacity to induce selectin ligands on T cells, which was suppressed by addition of live intestinal DC. By contrast, fixed intestinal DC failed to promote gut-tropism and instead induced skin-homing receptors. Moreover, the induction of selectin ligands driven by antigen-pulsed PLN-DC could be suppressed “in trans” by adding live intestinal DC, but PLN-DC did not suppress gut-homing receptors induced by intestinal DC. Reactivation of tissue-committed memory cells modified their tissue-tropism according to the last activating DC's origin. Thus, CD8 T cells activated by DC acquire selectin ligands by default unless they encounter fixation-sensitive signal(s) for gut-tropism from intestinal DC. Memory T cells remain responsive to these signals, allowing for dynamic migratory reprogramming by skin- and gut-associated DC.

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Crossref · 10.1084/jem.20041645

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Metadata

Authors
Mora, J. R., Cheng, G., Picarella, D., Briskin, M., Buchanan, N., & von Andrian, U. H.
Venue
The Journal of Experimental Medicine
Published
2005-01-10
Volume
201
Issue
2
Pages
303-316
ISSN
  • 0022-1007 (ISSN-L)
  • 1540-9538
OpenAlex
W2137409431
Cited by
310
References
2
FWCI
12.66
Type
journal article
Language
en
Open access
green

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