Defective angiogenesis in the inflammatory granulation tissue in histidine decarboxylase-deficient mice but not in mast cell-deficient mice

Ajoy Kumar Ghosh, Noriyasu Hirasawa, Hiroshi Ohtsu, Takehiko Watanabe, Kazuo Ohuchi

Research output: Contribution to journalArticle

93 Citations (Scopus)

Abstract

We have analyzed the role of histamine in the angiogenesis of the granulation tissue in histidine decarboxylase-deficient (HDC-/-) mice, mast cell-deficient mice (WBB6F1-W/Wv), and their corresponding wild-type mice (HDC+/+ and WBB6F1+/+). In HDC+/+ mice, subcutaneous implantation of a cotton thread in the dorsum induced granulation tissue formation with angiogenesis, while the topical injection of antivascular endothelial growth factor (VEGF) IgG strongly suppressed them. In HDC-/- mice which showed lower VEGF levels in the granulation tissue, there was notably less angiogenesis and granulation tissue formation than in HDC+/+ mice. The topical injection of histamine or the H2 agonist dimaprit rescued the defective angiogenesis and granulation tissue formation in HDC-/- mice. There was no significant difference in the granulation tissue formation and angiogenesis between WBB6F1-W/WV and WBB6F1÷/+ mice. In addition, macrophages in the granulation tissue were found to express HDC. Our findings indicate that histamine derived from nonmast cells plays a significant role in the angiogenesis of the inflammatory granulation tissue.

Original languageEnglish
Pages (from-to)973-982
Number of pages10
JournalJournal of Experimental Medicine
Volume195
Issue number8
DOIs
Publication statusPublished - 2002 Apr 15

Keywords

  • Cotton thread
  • Dimaprit
  • Histamine
  • Macrophage
  • Vascular endothelial growth factor

ASJC Scopus subject areas

  • Immunology and Allergy
  • Immunology

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