Alterations of vasoactive intestinal polypeptide receptors in allergic rhinitis

Dae Hyung Kim, Il Ho Park, Jung Sun Cho, You Mi Lee, Hyuk Choi, Heung Man Lee

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Background: Vasoactive intestinal peptide (VIP) is one of the parasympathetic neurotransmitters involved in the regulation of airway mucus secretion. The biological functions of VIP are mediated through two receptors (vasoactive intestinal peptide receptor type 1 [VPAC1R] and type 2 [VPAC2R]). The purpose of this study was to determine the distribution of VIP receptors and to compare the level of VIP receptor expression in the nasal mucosa of patients with allergic rhinitis and normal controls. Methods: Inferior turbinate mucosal samples were obtained from 20 normal subjects and 20 patients with allergic rhinitis. VPAC1R and VPAC2R mRNA was extracted from the nasal mucosa, and then a reverse-transcription - polymerase chain reaction was performed. Sections were immunostained using specific antibodies for VIP receptors. Western blot analysis was used to analyze differences in the level of expression of VPAC1R and VPAC2R protein between patients with allergic rhinitis and normal controls. Results: The level of expression of VIP receptor mRNA and protein in patients with allergic rhinitis was significantly increased compared with normal nasal mucosa. VIP receptor immunoreactivity was detected on the nasal epithelium and submucosal glands in nasal specimens from both normal controls and patients with allergic rhinitis. In the epithelium from patients with allergic rhinitis, VIP receptor immunoreactivity was strong, whereas in the nasal epithelium from normal subjects it was faint. Conclusion: These results suggest that an increased expression level of VIP receptors is one possible explanation for nasal hyperresponsiveness in patients with allergic rhinitis.

Original languageEnglish
JournalAmerican Journal of Rhinology and Allergy
Volume25
Issue number1
DOIs
Publication statusPublished - 2011 Jan 1

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Vasoactive Intestinal Peptide Receptors
Vasoactive Intestinal Peptide
Nasal Mucosa
Nose
Receptors, Vasoactive Intestinal Polypeptide, Type I
Turbinates
Messenger RNA
Mucus
Allergic Rhinitis
Reverse Transcription
Neurotransmitter Agents
Proteins
Epithelium
Western Blotting
Polymerase Chain Reaction
Antibodies

ASJC Scopus subject areas

  • Otorhinolaryngology
  • Immunology and Allergy

Cite this

Alterations of vasoactive intestinal polypeptide receptors in allergic rhinitis. / Kim, Dae Hyung; Park, Il Ho; Cho, Jung Sun; Lee, You Mi; Choi, Hyuk; Lee, Heung Man.

In: American Journal of Rhinology and Allergy, Vol. 25, No. 1, 01.01.2011.

Research output: Contribution to journalArticle

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