[Different intranasal corticosteroids effects on nasal airway remodeling of allergic rhinitis murine and matrix metalloproteinase-9].

Abstract

OBJECTIVE:

To discuss the effect of different doses intranasal corticosteroids on remodeling of allergic rhinitis (AR) mice nasal mucosa and expression level of matrix metalloproteinase-9 (MMP-9).

METHOD:

Thirty BALB/c female mice were divided into five groups randomly and received OVA or normal saline (NS) with intraperitoneal injection or nasal challenge, respectively. The treatment groups received additional different doses of budesonide (0.6 μg/20 g, 3.0 μg/20 g and 15.0 μg/20 g) daily for 16 weeks. We assessed the nasal symptoms at 4 and 16 weeks. Collected the mice nasal tissue, and then stained with hematoxylin-eosin, Masson's Trichrome, and periodic acid-schiff respectively to evaluate airway remodeling at 16 weeks. MMP-9 was measured with enzyme-linked immunosorbent assay (ELISA). Result: Times of rubbing, sneezes and infiltrate of eosinophil increased more in B group than in A group, and subepithelial fibrosis, collagen deposition, goblet cell hyperplasia, and submucosal gland hypertrophy were only observed in B group at 16 weeks. The nasal symptoms and eosinophil infiltration were inhibited by treatment with budesonide from a dose of 0.6 μg onwards, while the prevention of structure changes was only observed with 3.0 μg onwards. In addition, intranasal budesonide reduced MMP-9 in the nasal of AR mice.

CONCLUSION:

The study suggests that higher dose intranasal corticosteroids might inhibit the airway remodeling of nasal mucosa by reducing MMP-9.

• Authors: Yuanyuan Lian, Niankai Zhang, Tingting Liu
• Journal: Lin chuang er bi yan hou tou jing wai ke za zhi = Journal of clinical otorhinolaryngology, head, and neck surgery (Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi) Vol. 29 Issue 5 Pg. 452-6 (Mar 2015) ISSN: 2096-7993 [Print] China
• PMID: 26103669 (Publication Type: Journal Article)

Chemical References

• Budesonide
• Matrix Metalloproteinase 9
• Mmp9 protein, mouse

Topics

• Airway Remodeling
• Animals
• Budesonide (pharmacology)
• Disease Models, Animal
• Eosinophils (cytology)
• Female
• Matrix Metalloproteinase 9 (metabolism)
• Mice
• Mice, Inbred BALB C
• Nasal Mucosa (drug effects)
• Rhinitis, Allergic (drug therapy, metabolism)