Inhibition of effects of endogenously synthesized histamine disturbs in vitro human dendritic cell differentiation

Júlia B. Szeberényi, E. Pállinger, Mónika Zsinkó, Z. Pós, Gregor Rothe, Evelyn Orsó, Szabolcs Szeberényi, Gerd Schmitz, A. Falus, V. László

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Abstract

Histamine, a principal mediator in various physiological and pathological cell functions is synthesized from L-histidine exclusively by histidine decarboxylase, an enzyme, which is expressed in many tissues of mammalian organism. Histamine plays a role in various cellular functions, including cell differentiation. The aim of this study was to determine the presence and to characterize the role of the endogenously produced histamine during in vitro dendritic cell (DC) differentiation induced by interleukin-4 (IL-4) and granulocyte-monocyte colony stimulating factor (GM-CSF). The changes in intracellular histamine content, biosynthesis and gene expression of histidine decarboxylase were investigated during this process. One also studied how histamine receptor antagonists and a histamine synthesis blocker influence the expression of differentiation antigens on the DC during in vitro maturation. During in vitro differentiation parallel culture incubations were performed by adding H1 receptor antagonist triprolidine, H2 receptor antagonist tiotidine, the tamoxifene derivate DPPE which blocks the intracellular binding of histamine, and an irreversible blocker of histidine decarboxylase, α-fluoromethyl histamine (α-FMH). The results show simultaneous increase in both histidine decarboxylase level and histamine content during differentiation of elutriated monocytes toward DC. Both blockade of de novo histamine production (by α-FMH) and inhibition of histamine binding (by H1 and H2 receptor antagonists, triprolidine and tiotidine, respectively) markedly decreased CD40 expression and that of CD45 from the 3rd day of treatment. DPPE by disturbing intracellular interaction of histamine with cytochrome P-450 moieties was able to decrease the expression of CD45, CD86, HLA-DR, CD33, CD40 and CD11c. Based on the data it is suggested that endogenous histamine is actively synthesized during cytokine-induced in vitro DC differentiation. The functional relevance and autocrine and paracrine action of endogenously produced histamine is supported by the data showing that inhibition of histamine synthesis by HDC, blocking of histamine binding by both 'extracellular' histamine receptors (by specific antagonists, triprolidine and tiotidine) and 'intracellular' antagonists (DPPE) disturb the differentiation of DC. This conclusion is supported by the fact, that by the inhibition of histamine acting in an autocrine/paracrine way, the expression pattern of differentiation markers on DC is markedly changed.

Original languageEnglish
Pages (from-to)175-182
Number of pages8
JournalImmunology Letters
Volume76
Issue number3
DOIs
Publication statusPublished - Apr 2 2001

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Dendritic Cells
Histamine
Cell Differentiation
Histidine Decarboxylase
Triprolidine
Histamine Receptors
Differentiation Antigens
In Vitro Techniques
Monocytes
Histamine H1 Antagonists
Histamine H2 Antagonists
Histamine H1 Receptors
Histamine H2 Receptors
Histamine Antagonists
HLA-DR Antigens
Granulocyte Colony-Stimulating Factor
Histidine
Interleukin-4
Cytochrome P-450 Enzyme System

Keywords

  • Dendritic cell
  • Differentiation antigens
  • Histamine

ASJC Scopus subject areas

  • Immunology
  • Immunology and Allergy

Cite this

Inhibition of effects of endogenously synthesized histamine disturbs in vitro human dendritic cell differentiation. / Szeberényi, Júlia B.; Pállinger, E.; Zsinkó, Mónika; Pós, Z.; Rothe, Gregor; Orsó, Evelyn; Szeberényi, Szabolcs; Schmitz, Gerd; Falus, A.; László, V.

In: Immunology Letters, Vol. 76, No. 3, 02.04.2001, p. 175-182.

Research output: Contribution to journalArticle

Szeberényi, Júlia B. ; Pállinger, E. ; Zsinkó, Mónika ; Pós, Z. ; Rothe, Gregor ; Orsó, Evelyn ; Szeberényi, Szabolcs ; Schmitz, Gerd ; Falus, A. ; László, V. / Inhibition of effects of endogenously synthesized histamine disturbs in vitro human dendritic cell differentiation. In: Immunology Letters. 2001 ; Vol. 76, No. 3. pp. 175-182.
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AU - Rothe, Gregor

AU - Orsó, Evelyn

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