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Neoplasma Vol.61, No.6, p.747-757, 2014 |
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| Title: MMP-9 as a potential biomarker for carcinoma of oral cavity: a study in eastern India | ||
| Author: D. P. NANDA, K. DUTTA, K. K. GANGULY, S. HAJRA, S. S. MANDAL, J. BISWAS, D. SINHA | ||
| Abstract: Carcinoma of oral cavity have a high risk of recurrence after initial treatment with surgery, radiotherapy, surgery with adjuvant radiotherapy, or radio-chemotherapy.The present study investigated the changes in expression, activity and regulation of matrix metalloproteinases (MMP) -2 and -9 in oral squamous cell carcinoma (OSCC) which might help to ascertain the invasive potential of the tumor . Tumor tissues and adjacent normal tissues of OSCC patients [N,37; either sex; 20-70 yrs] were subjected to clinico-pathology, histopathology and TNM grading. The enzyme activity and associated signalling was observed with gelatin zymography, immunohistochemistry, ELISA, western blot and semi quantitative reverse transcriptase PCR. OSCC tissues were observed with elevated MMP-9 activity, enhanced expression of fibronectin (FN), phosphorylated focal adhesion kinase (FAK Try 397), phosphatidyl inositol 3‑kinase (PI3K), protein kinase B (AKT) and reduced expression of tissue inhibitor of metalloproteinase- 1(TIMP-1) than the control tissues. OSCC patients elicited a predominance of MMP-9 activity via up regulated FAK/PI3K/AKT pathway. A routine MMP-9 analysis may ascertain the invasiveness of the tumor and therefore may be professed as a suitable biomarker for metastatic potential of oral cancer. |
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| Keywords: oral squamous cell carcinoma, MMP-9, zymography, eastern India | ||
| Published online: 23-Aug-2014 | ||
| Year: 2014, Volume: 61, Issue: 6 | Page From: 747, Page To: 757 | |
| doi:10.4149/neo_2014_091 |
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