Involvement of perivascular nerves and transient receptor potential vanilloid 1 (TRPV1) in vascular responses to histamine in rat mesenteric resistance arteries

Honghua Jin, Pengyuan Sun, Shingo Takatori, Toshihiro Koyama, Yoshito Zamami, Panot Tangsucharit, Yoshihisa Kitamura, Hiromu Kawasaki

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

A previous report showed that histamine in denuded mesenteric vascular beds produced a triphasic response; an initial small histamine H2 receptor-mediated vasodilation, a transient histamine H1 receptor-mediated vasoconstriction, and finally a long-lasting vasodilation. We further investigated the vascular effect of histamine in mesenteric preparations without an endothelium to clarify the possible involvement of perivascular nerves. Male Wistar rat mesenteric vascular beds without an endothelium were perfused with Krebs solution containing methoxamine to produce active tone and lafutidine to block histamine H2 receptor-mediated vasodilation. Histamine (1-100 μM) was perfused for 1 min and perfusion pressure was measured with a pressure transducer. Histamine caused a biphasic vascular response; initial vasoconstriction followed vasodilation. Tetrodotoxin (a neurotoxin, 1 μM) and procaine (a local anesthetic, 100 μM) significantly inhibited the vasoconstriction and vasodilation. Ruthenium red (a transient receptor potential vanilloid 1 (TRPV1) antagonist, 1 μM) also significantly inhibited both phases of the response. Pretreatment with capsaicin (a depletor of calcitonin gene-related peptide (CGRP)-containing nerves, 5 μM) significantly inhibited the vasodilation without affecting the initial vasoconstriction. Both indomethacin (a cyclooxygenase inhibitor, 0.5 μM) and seratrodast (a thromboxane A2 receptor antagonist, 0.1 μM) abolished the histamine-induced vasoconstriction and subsequent vasodilation. These results suggest that histamine-induced vasoconstriction and long-lasting vasodilation are mediated by activation of TRPV1 on capsaicin-sensitive and capsaicin-insensitive nerves. They also suggest that perivascular nerves and prostanoids, probably thromboxane A2, are responsible for the vascular response to histamine.

Original languageEnglish
Pages (from-to)73-80
Number of pages8
JournalEuropean Journal of Pharmacology
Volume680
Issue number1-3
DOIs
Publication statusPublished - Apr 5 2012

Fingerprint

Mesenteric Arteries
Vasodilation
Histamine
Blood Vessels
Vasoconstriction
Capsaicin
Histamine H2 Receptors
seratrodast
Endothelium
Prostaglandin H2 Receptors Thromboxane A2
Methoxamine
Pressure Transducers
Ruthenium Red
Histamine H1 Receptors
Procaine
Thromboxane A2
Cyclooxygenase Inhibitors
vanilloid receptor subtype 1
Calcitonin Gene-Related Peptide
Tetrodotoxin

Keywords

  • Histamine
  • Perivascular nerve
  • Rat mesenteric resistance artery
  • Transient receptor potential vanilloid 1
  • Vasoconstriction
  • Vasodilation

ASJC Scopus subject areas

  • Pharmacology

Cite this

Involvement of perivascular nerves and transient receptor potential vanilloid 1 (TRPV1) in vascular responses to histamine in rat mesenteric resistance arteries. / Jin, Honghua; Sun, Pengyuan; Takatori, Shingo; Koyama, Toshihiro; Zamami, Yoshito; Tangsucharit, Panot; Kitamura, Yoshihisa; Kawasaki, Hiromu.

In: European Journal of Pharmacology, Vol. 680, No. 1-3, 05.04.2012, p. 73-80.

Research output: Contribution to journalArticle

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