Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery · 2009
Nonasthmatic nasal polyposis patients with allergy exhibit greater epithelial MMP positivity.
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Shin Hyun-Woo, Han Doo Hee, Lim Yune Sung, Kim Hye Jung, Kim Dong-Young, Lee Chul Hee, Min Yang-Gi, Rhee Chae-Seo
Аннотация
OBJECTIVE: To determine the influence of allergic rhinitis (AR) on the expression of matrix metalloproteinase (MMP)-9, MMP-2, and tissue inhibitor-1 of metalloproteinase (TIMP-1) in nasal polyposis.
STUDY DESIGN: A case-control study.
SETTING: A tertiary referral center.
SUBJECTS AND METHODS: The expression of MMP-9, MMP-2, and TIMP-1 was investigated in the nasal polyp tissue (NP) and maxillary sinus mucosa (MM) samples from 20 AR patients and 20 nonallergic patients undergoing endoscopic sinus surgery. Trichrome, periodic acid-Schiff, and hematoxylin-eosin staining were also performed and those expression levels were compared.
RESULTS: Infiltration of eosinophils was shown more intensely in NP rather than in MM, especially in the presence of AR. In the NP of AR patients, increased expression of MMP-9, MMP-2, and TIMP-1 was observed more prominently than in that of the control group. In case of MM, however, there was no significant difference between AR patients and the control group.
CONCLUSION: The presence of AR may enhance the expression of MMP-9, MMP-2, and TIMP-1 associated with airway remodeling in nasal polyposis.
STUDY DESIGN: A case-control study.
SETTING: A tertiary referral center.
SUBJECTS AND METHODS: The expression of MMP-9, MMP-2, and TIMP-1 was investigated in the nasal polyp tissue (NP) and maxillary sinus mucosa (MM) samples from 20 AR patients and 20 nonallergic patients undergoing endoscopic sinus surgery. Trichrome, periodic acid-Schiff, and hematoxylin-eosin staining were also performed and those expression levels were compared.
RESULTS: Infiltration of eosinophils was shown more intensely in NP rather than in MM, especially in the presence of AR. In the NP of AR patients, increased expression of MMP-9, MMP-2, and TIMP-1 was observed more prominently than in that of the control group. In case of MM, however, there was no significant difference between AR patients and the control group.
CONCLUSION: The presence of AR may enhance the expression of MMP-9, MMP-2, and TIMP-1 associated with airway remodeling in nasal polyposis.