Involvement of histamine H3 receptors in scratching behaviour in mast cell-deficient mice

M. A. Hossen, Yukio Sugimoto, R. Kayasuga, C. Kamei

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

Background: Although the roles of histamine H3 receptors have been studied in several tissues such as the brain, lung, spleen, colon and peripheral sensory nerve endings, the involvement of H3 receptors in skin responses particularly in relation to scratching behaviour are not well documented. Objectives: This work was performed to study the effects of histamine H3 antagonists on scratching behaviour in mast cell-deficient mice. Methods: Histamine H3 antagonists iodophenpropit and clobenpropit, histamine and substance P were injected intradermally into the rostral part of the back of mast cell-deficient (WBB6F1 W/Wv) and wild-type (WBB6F1+/+) mice and scratching behaviour was measured for 60 min. The effects of H1 antagonists on scratching behaviour induced by H3 antagonists were also investigated. Results: Intradermal injection of iodophenpropit and clobenpropit at doses of 10 and 100 nmol per site caused significant increases in scratching behaviour in both mast cell-deficient and wild-type mice. Histamine also caused a dose-related increase in the incidence of scratching behaviour, and a significant effect was observed at a dose of 100 nmol per site in both mast cell-deficient and wild-type mice. Substance P was also effective in causing scratching behaviour in both mast cell-deficient and wild-type mice. However, histamine H1 antagonists diphenhydramine and chlorphenamine failed to inhibit H3 antagonist-induced scratching behaviour in both types of mice. Conclusions: Our results indicated that intradermal injection of H3 antagonists induces scratching behaviour and that chemical mediators other than histamine seem to be involved in the response.

Original languageEnglish
Pages (from-to)17-22
Number of pages6
JournalBritish Journal of Dermatology
Volume149
Issue number1
DOIs
Publication statusPublished - Aug 1 2003

Fingerprint

Histamine H3 Receptors
Mast Cells
Histamine H3 Antagonists
Histamine
Intradermal Injections
Substance P
Histamine H1 Antagonists
Chlorpheniramine
Diphenhydramine
Sensory Receptor Cells
Peripheral Nerves
Colon
Spleen

Keywords

  • H antagonists
  • Histamine
  • Scratching behaviour
  • Substance P

ASJC Scopus subject areas

  • Dermatology

Cite this

Involvement of histamine H3 receptors in scratching behaviour in mast cell-deficient mice. / Hossen, M. A.; Sugimoto, Yukio; Kayasuga, R.; Kamei, C.

In: British Journal of Dermatology, Vol. 149, No. 1, 01.08.2003, p. 17-22.

Research output: Contribution to journalArticle

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