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[Increased expression and activity of MMP-9 in chronic rhinosinusitis with nasal polyposis]

Gustavo Eisenberg1, Jesús Pradillo, Guillermo Plaza

  • 1Servicio Otorrinolaringología, Hospital de Fuenlabrada, Madrid, España. geisenberg.hflr@salud.madrid.org

Acta Otorrinolaringologica Espanola
|December 17, 2008
PubMed
Abstract

Insights

Matrix metalloproteinase-9 (MMP-9) is elevated in nasal polyposis, indicating its role in the tissue remodeling characteristic of this chronic condition. MMP-2 was not found to be involved.

Area of Science:

  • Biochemistry
  • Pathology

Context:

  • Nasal polyposis is a chronic inflammatory condition.
  • Matrix metalloproteinases (MMPs) are implicated in extracellular matrix degradation.
  • Histological changes in nasal polyposis may be linked to MMP activity.

Purpose:

  • To investigate the role of matrix metalloproteinase-2 (MMP-2) and matrix metalloproteinase-9 (MMP-9) in chronic rhinosinusitis with nasal polyposis.

Summary:

  • Specimens from 15 nasal polyposis patients and 15 controls were analyzed for MMP-2 and MMP-9 expression and activity.
  • Western-blot and zymography were used to quantify protein levels and enzymatic activity.
  • Significantly higher expression and activity of MMP-9 were observed in polyposis specimens compared to controls.

Impact:

  • The findings support the involvement of MMP-9 in the tissue remodeling processes associated with nasal polyposis.
  • This suggests MMP-9 as a potential therapeutic target for managing nasal polyposis.

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