Presence of human β-defensin-2 in oral lichen planus and its histamine releasing effect

Nobuyoshi Mizukawa, Koichi Sawaki, Hitoshi Nagatsuka, Eiki Yamachika, Takaaki Ueno, Joji Fukunaga, Shin Takagi, Toshio Sugahara

Research output: Contribution to journalArticle

Abstract

Objective: To determine by immunohistochemical means the localization of human β-defensin-2, a peptide with antimicrobial activity, in oral lichen planus. The release of histamine from mast cells elicited by human β-defensin-2 was also investigated. Materials and Methods: Biopsy specimens of oral lichen planus, synthetic human β-defensin-2, human α-defensin-1, and mast cells isolated from Sprague Dawley rats were used. Tissue sections were embedded in paraffin and immunostained by the streptavidin-biotin-coupled peroxidase method. Isolated rat mast cells were injected with synthetic human β-defensin-2 and human α-defensin-1. Evans blue dye was injected into the tail vein of Sprague Dawley rats, followed by various doses of histamine, human β-defensin-2, human αdefensin-1, and saline. Results: Epithelial cells in lichen planus from the corneal layer to the spinous layer, were positively stained with anti-human β-defensin-2 antibody. Mast cells in subepithelial areas were also stained by anti-human β-defensin-2 antibody. Human β-defensin-2-induced histamine release from the isolated rat mast cells occurs in a dose-dependent manner. When human β-defensin-2 was injected into rat skin intradermally, the vascular permeability increased. These responses were completely abolished upon injection of the antihistamine drug diphenhydramine hydrochloride. Conclusion: Human β-defensin-2 and histamine may play an important role in the formation of oral lichen planus.

Original languageEnglish
Pages (from-to)112-117
Number of pages6
JournalAsian Journal of Oral and Maxillofacial Surgery
Volume15
Issue number2
Publication statusPublished - 2003

Fingerprint

Histamine Agents
Oral Lichen Planus
Defensins
Mast Cells
Histamine Release
Histamine
Sprague Dawley Rats
Diphenhydramine
Lichen Planus
Evans Blue
Streptavidin
Antibodies
Histamine Antagonists
Capillary Permeability
Biotin
Paraffin

Keywords

  • Beta defensins
  • Epithelial cells
  • Histamine
  • Lichen planus
  • Mast cells

ASJC Scopus subject areas

  • Surgery

Cite this

Presence of human β-defensin-2 in oral lichen planus and its histamine releasing effect. / Mizukawa, Nobuyoshi; Sawaki, Koichi; Nagatsuka, Hitoshi; Yamachika, Eiki; Ueno, Takaaki; Fukunaga, Joji; Takagi, Shin; Sugahara, Toshio.

In: Asian Journal of Oral and Maxillofacial Surgery, Vol. 15, No. 2, 2003, p. 112-117.

Research output: Contribution to journalArticle

Mizukawa, Nobuyoshi ; Sawaki, Koichi ; Nagatsuka, Hitoshi ; Yamachika, Eiki ; Ueno, Takaaki ; Fukunaga, Joji ; Takagi, Shin ; Sugahara, Toshio. / Presence of human β-defensin-2 in oral lichen planus and its histamine releasing effect. In: Asian Journal of Oral and Maxillofacial Surgery. 2003 ; Vol. 15, No. 2. pp. 112-117.
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