Inhibition of angiogenic factor production from murine mast cells by an antiallergic agent (epinastine hydrochloride) in vitro.

Mediators of Inflammation
Kazuhito AsanoT Hisamitsu

Abstract

Angiogenesis is an important event both in the development of allergic inflammatory responses and in the pathophysiology of tissue remodeling in allergic diseases. In the present study, therefore, we examined the influence of antihistamines on angiogenesis through the choice of epinastine hydrochloride (EP) and murine mast cells in vitro. Mast cells (5 x 10(5) cells/mL) presensitized with murine IgE specific for ovalbumin (OVA) were stimulated with 10 ng/mL OVA in the presence of various concentrations of EP for 4 hours. The levels of angiogenesis factors, keratinocyte-derived chemokine (KC), tumor necrosis factor-alpha (TNF), and vascular endothelial growth factor (VEGF) in culture supernatants, were examined by ELISA. We also examined mRNA expression for the angiogenesis factors by RT-PCR. EP significantly inhibited the production of KC, TNF, and VEGF induced by IgE-dependent mechanism at more than 25 ng/mL. Semiquantitative analysis using RT-PCR showed that EP also significantly reduced mRNA expressions for KC, TNF, and VEGF. These results strongly suggest that EP suppresses angiogenesis factor production through the inhibition of mRNA expression in mast cells and results in favorable modification of clinical conditions of a...Continue Reading

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Citations

Aug 5, 2009·Current Opinion in Allergy and Clinical Immunology·Alessandro LambiaseStefano Bonini
Jun 3, 2021·Medicines·Takayuki OkumoMasataka Sunagawa
Aug 20, 2009·Current Opinion in Allergy and Clinical Immunology

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Methods Mentioned

BETA
protein assay
ELISA
lavage

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