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Matrix metalloproteinases and their inhibitors in the nasal mucosa of patients with perennial allergic rhinitis

Shaida, Azhar, Kenyon, Guy, Devalia, Jagdish, Davies, Robert J., MacDonald, Thomas T. and Pender, Sylvia L.F. (2001) Matrix metalloproteinases and their inhibitors in the nasal mucosa of patients with perennial allergic rhinitis Journal of Allergy and Clinical Immunology, 108, (5), pp. 791-796. (doi:10.1067/mai.2001.119024).

Record type: Article

Abstract

Background: Allergic rhinitis and asthma show many similarities in their epithelial and inflammatory responses to allergens. However, one notable difference is that disruption and desquamation of the epithelium is a characteristic feature of asthma, whereas in perennial allergic rhinitis the epithelium is intact and thickened. One reason for this might be differing expression of matrix metalloproteinases (MMPs) or their inhibitors (TIMPs). There are few published data on the presence of MMPs or TIMPs in the nasal mucosa in rhinitis.
Objective: The purpose of this study was to investigate MMP and TIMP mRNA and protein in nasal mucosa from subjects with perennial allergic rhinitis and from nonrhinitic control subjects.
Methods: Biopsy specimens of nasal mucosa were taken from 10 well-characterized subjects with perennial allergic rhinitis and 10 nonrhinitic control subjects. MMP and TIMP mRNA was quantified through use of competitive RT-PCR, and protein was detected by means of Western blotting and ELISA.
Results: TIMP-1 mRNA and TIMP-2 mRNA were present in nasal samples, but there was no significant difference between the 2 groups. Only small amounts of MMP-1, -2, -3, and -9 mRNA were detected in the same samples. The corresponding proteins were detected by means of Western blotting. TIMP-1 protein and TIMP-2 protein were quantified in tissue homogenates; there was no significant difference between the 2 groups.
Conclusion: Our studies have demonstrated the presence of large amounts of TIMP-1 and TIMP-2 mRNA and protein in nasal mucosa. There is no upregulation of MMPs or changes in TIMP expression in the nasal mucosa of patients with allergic rhinitis.

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Published date: 2001

Identifiers

Local EPrints ID: 27419
URI: http://eprints.soton.ac.uk/id/eprint/27419
ISSN: 0091-6749
PURE UUID: 3debd86c-2150-4550-9087-288337ea85bd
ORCID for Sylvia L.F. Pender: ORCID iD orcid.org/0000-0001-6332-0333

Catalogue record

Date deposited: 27 Apr 2006
Last modified: 17 Jul 2017 16:04

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Contributors

Author: Azhar Shaida
Author: Guy Kenyon
Author: Jagdish Devalia
Author: Robert J. Davies
Author: Thomas T. MacDonald

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