[Expression of matrix metalloproteinase (MMP-2) and extracellular matrix metalloproteinases inducer (EMMPRIN) in benign and advanced breast cancer tissue samples].
Tumor cell derived matrix metalloproteinases are a family of enzymes associated with the tumor invasion and metastasis. Extracellular matrix metalloproteinases inducer (EMMPRIN) stimulates synthesis of gelatinase A (MMP-2) in peritoneal fibroblasts. In the present study the role of MMP-2 and EMMPRIN in the progression of breast cancer has been investigated. Gelatinase-A and EMMPRIN were analyzed in benign and stage II and stage III breast cancer tissue samples by gelatin zymography assay, immunoprecipation analysis and Western blot analysis with a monoclonal primary antibody specific for EMMPRIN. Our results showed overexpression of EMMPRIN in advanced stages of breast cancer tissues compared with benign tumor tissue samples. The expression of MMP-2, the active and latent forms of the enzyme increased with tumor progression from Stage II to Stage III of breast cancer and it was not expressed in benign tissues. The expression MMP-2 correlates with tumor progression. This observation obviously indicates that EMMPRIN and MMP-2 are the major determinants of malignancy in cancers.
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Chandru
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Sharada
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Manjunath
D051926:Basigin / Q000096:biosynthesis*; D014408:Biomarkers, Tumor / Q000096:biosynthesis*; D001943:Breast Neoplasms / Q000378:metabolism* / Q000473:pathology; D005260:Female; D006801:Humans; D047468:Immunoprecipitation; D042361:Mammary Glands, Human / Q000378:metabolism*; D020778:Matrix Metalloproteinase 2 / Q000096:biosynthesis*; D009367:Neoplasm Staging
D014408:Biomarkers, Tumor; D051926:Basigin; D020778:Matrix Metalloproteinase 2