Related Experiment Video
Updated: Apr 5, 2026
07:01
Navigating the Mass Spectrometry-Based Proteomic Data Using Free Computational Tools
Published on: August 19, 2025
1.2K
Matrix metalloproteinase 7 expression in ampullary carcinoma
Niraj Kumari1, Rajneesh Kumar Singh, Narendra Krishnani
1Department of Pathology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India.
Indian Journal of Pathology & Microbiology
|August 15, 2015
Summary
Matrix metalloproteinase 7 (MMP7) is expressed in 64% of ampullary cancers, correlating with lower pathological T-stage and higher overall stage. MMP7 expression is linked to shorter survival, suggesting its potential as a therapeutic target.
Area of Science:
- Oncology
- Gastroenterology
- Cancer Biology
Background:
- Ampullary carcinoma is a common periampullary cancer in India, unlike in Western populations where pancreatic cancer predominates.
- Matrix metalloproteinase 7 (MMP7) has been extensively studied in pancreatic cancer.
- The role and expression of MMP7 in ampullary carcinoma remain underexplored.
Purpose of the Study:
- To investigate the expression of MMP7 in ampullary carcinoma.
- To correlate MMP7 expression with clinicopathological features, including histological differentiation.
- To assess the impact of MMP7 expression on patient survival.
Main Methods:
- Retrospective review of 91 ampullary carcinoma cases over a 3-year period.
- Histological differentiation assessed by morphology and immunohistochemistry (CDX2, MUC2, CK20, MUC1, CK7, CK17).
- MMP7 expression evaluated using immunohistochemistry and correlated with clinicopathological variables and overall survival.
Main Results:
- MMP7 expression was detected in 63.7% of ampullary carcinomas.
- MMP7 expression was significantly higher in low pathological T-stage overall but more common in higher overall stage for pancreatobiliary type.
- Patients with MMP7 expression exhibited lower overall survival compared to MMP7-negative patients.
Conclusions:
- This study is the first to report MMP7 expression in ampullary cancer.
- MMP7 expression is prevalent in ampullary cancer, associated with specific staging characteristics, and a predictor of poorer survival.
- MMP7 presents a potential therapeutic target for MMP inhibitor therapy in ampullary carcinoma.
