Regulatory effects of vasoactive intestinal peptide on the migration of mature dendritic cells

J Neuroimmunol. 2007 Jan;182(1-2):48-54. doi: 10.1016/j.jneuroim.2006.09.009. Epub 2006 Nov 1.

Abstract

The neuropeptide vasoactive intestinal peptide (VIP), released within lymphoid organs from nerve terminals and/or immune cells, plays a significant anti-inflammatory role. It was reported that VIP can induce regulatory dendritic cells (DCs) and promote Th2-type responses. However, the regulatory effect of VIP on the migration and expression of chemokine receptors by DC is mostly unknown. In the present study, we show that VIP exerts a differential effect on the expression of CCR1 and CCR7 by lipopolysaccharide (LPS)-treated mature DCs (mDCs) at both protein and mRNA levels. It up-regulates CCR1 expression but down-regulates CCR7 expression in LPS-stimulated mature DC, thereby differentially regulating the migration of mature DCs in response to CCL5 and CCL19. Our data indicate that VIP functions as a key endogenous anti-inflammatory agent by inhibiting migration of mDCs to draining lymph nodes, thus preventing the induction of an inflammatory immune response.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Anti-Inflammatory Agents / pharmacology*
  • Cell Movement / drug effects*
  • Cells, Cultured
  • Cellular Senescence / drug effects
  • Chemokine CCL19
  • Chemokine CCL5
  • Chemokines, CC / pharmacology
  • Dendritic Cells / drug effects
  • Dendritic Cells / physiology*
  • Down-Regulation
  • Lipopolysaccharides / pharmacology
  • Male
  • Mice
  • Mice, Inbred C57BL
  • RNA, Messenger / metabolism
  • Receptors, CCR1
  • Receptors, CCR7
  • Receptors, Chemokine / antagonists & inhibitors
  • Receptors, Chemokine / genetics
  • Receptors, Chemokine / metabolism
  • Up-Regulation
  • Vasoactive Intestinal Peptide / pharmacology*

Substances

  • Anti-Inflammatory Agents
  • Ccl19 protein, mouse
  • Ccl5 protein, mouse
  • Ccr1 protein, mouse
  • Ccr7 protein, mouse
  • Chemokine CCL19
  • Chemokine CCL5
  • Chemokines, CC
  • Lipopolysaccharides
  • RNA, Messenger
  • Receptors, CCR1
  • Receptors, CCR7
  • Receptors, Chemokine
  • Vasoactive Intestinal Peptide