MMP11 as a Prognostic Indicator for Inverted Papilloma Histologic Grade and Recurrence

Area of Science:

• Oncology
• Biomarkers
• Extracellular Matrix Remodeling

Background:

• Inverted papilloma (IP) is a benign sinonasal tumor with high recurrence rates and malignant potential.
• Current biomarkers for predicting IP recurrence or severity are lacking.
• Matrix metalloproteinase-11 (MMP11) is implicated in tumor progression and extracellular matrix remodeling.

Purpose of the Study:

• To investigate the correlation between MMP11 expression and the histologic severity of IP.
• To assess the relationship between MMP11 expression and the risk of IP recurrence.

Main Methods:

• Retrospective analysis of patient data and tumor specimens (normal sinus tissue, IP without dysplasia, IP with severe dysplasia, SCC) from 2008-2023.
• Immunohistochemical staining for MMP11 was performed on patient specimens.
• Quantitative analysis of MMP11 expression using DAB-Quant software.

Main Results:

• MMP11 expression was significantly higher in IP with severe dysplasia and SCC compared to IP without dysplasia.
• Elevated MMP11 expression in initial resection specimens was associated with a higher risk of recurrence.
• High MMP11 expression correlated with a shorter time to recurrence, independent of histologic grade.

Conclusions:

• MMP11 expression is a potential biomarker for increased IP histologic grade and recurrence risk.
• Elevated MMP11 levels may help identify patients at higher risk for IP recurrence.
• This finding could inform targeted surveillance and treatment strategies for IP.