IMR Press / FBE / Volume 3 / Issue 4 / DOI: 10.2741/E343

Frontiers in Bioscience-Elite (FBE) is published by IMR Press from Volume 13 Issue 2 (2021). Previous articles were published by another publisher on a subscription basis, and they are hosted by IMR Press on imrpress.com as a courtesy and upon agreement with Frontiers in Bioscience.

Open Access Article

Histamine regulates relevant murine dendritic cell functions via H4 receptor

Show Less
1 Institute of Immunology, University of Debrecen, Debrecen, Hungary
2 Department of Genetics, Cell- and Immunobiology, Semmelweis University, Budapest, Hungary
3 Research Group for Inflammation Biology and Immunogenomics, Hungarian Academy of Sciences, Budapest, Hungary

*Author to whom correspondence should be addressed.

Academic Editor: Ekaterini Tiligada

Front. Biosci. (Elite Ed) 2011, 3(4), 1414–1424; https://doi.org/10.2741/E343
Published: 1 June 2011
(This article belongs to the Special Issue Histamine revisited: the H4 receptor in health and disease)
Abstract

Histamine, produced by dendritic cells (DCs) or by other cells of the immune system, may have significant impact on DC activities. We investigated the influence of histamine and histamine H4 receptor (H4R) on some relevant functions of DCs. Histamine significantly decreased the antigen presentation capacity of splenic DCs, and this effect was reversed by a H4R antagonist. Furthermore, enhanced antigen presentation was detected in H4R-/- DCs. Prolonged histamine treatment during DC differentiation stimulated migration, albeit the increase was not significant. H4R-deficient DCs possessed significantly lower migration capacity than their wild-type counterparts. Monitoring in vivo and in vitro DC cytokine production revealed that a H4R agonist in combination with LPS, increased IL-1 beta mRNA expression, and a H4R antagonist reversed this effect. In H4R-deficient mice we detected decreased mRNA expression of some DC-derived cytokines including IFN-gamma and IL-10. Upon CFA stimulation, genotype-dependent differences were found in the expression of IL-6 and IFN-gamma. Our data suggest that H4R plays a crucial role in variety of functions of murine DCs.

Keywords
Antigen presentation
Cell adhesion
Cytokine
Histamine
Histamine H4 receptor
Migration
Murine dendritic cell
Share
Back to top