Cutting edge: rapid accumulation of epidermal CCL27 in skin-draining lymph nodes following topical application of a contact sensitizer recruits CCR10-expressing T cells

J Immunol. 2008 May 15;180(10):6462-6. doi: 10.4049/jimmunol.180.10.6462.

Abstract

CC chemokine receptor 10 and its ligand, CCL27, are important components of T cell-mediated cutaneous immunity, but whether they influence lymph node (LN) homing by T cells is unknown. In this study, CCL27 protein was detected in skin-draining LN by Western blotting and ELISA although CCL27 mRNA transcripts were low. CCL27 protein was present at higher levels in skin-draining LN compared with gut-draining LN and spleen. A single topical treatment of mouse skin with the contact sensitizer 2,4-dinitro-1-fluorobenzene (DNFB) resulted in a 13-fold increase in CCL27 protein accumulation in skin-draining LN within 1 h and a 5-fold elevation in CCR10 mRNA (normalized to the T cell marker CD2) within 6 h. DNFB treatment also resulted in rapid depletion of approximately 75% of CCL27 from the epidermis. In summary, we describe a novel mechanism for the recruitment of CCR10-positive T cells to skin-draining LN following the rapid release of preformed CCL27 from the epidermis.

Publication types

  • Research Support, N.I.H., Intramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Animals
  • Blotting, Western
  • Chemokine CCL27 / metabolism*
  • Chemotaxis, Leukocyte / immunology
  • Dermatitis, Contact / immunology*
  • Dinitrofluorobenzene / immunology
  • Enzyme-Linked Immunosorbent Assay
  • Female
  • Fluorescent Antibody Technique
  • Humans
  • Lymph Nodes / immunology*
  • Lymph Nodes / metabolism
  • Mice
  • Mice, Inbred C57BL
  • Middle Aged
  • RNA, Messenger / analysis
  • Receptors, CCR10 / metabolism*
  • Reverse Transcriptase Polymerase Chain Reaction
  • Skin / immunology
  • T-Lymphocyte Subsets / immunology*
  • T-Lymphocyte Subsets / metabolism
  • T-Lymphocytes / immunology*
  • T-Lymphocytes / metabolism

Substances

  • Ccl27a protein, mouse
  • Ccr10 protein, mouse
  • Chemokine CCL27
  • RNA, Messenger
  • Receptors, CCR10
  • Dinitrofluorobenzene