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Korean Journal of Head & Neck Oncology 2004;20(1):13-18.
Published online May 30, 2004.
Expression of Matrix Metalloproteinase-9 and Fibroblast Growth Factor in Squamous Cell Carcinoma of the Head and Neck and Metastaric Cervical Lymph Node
Young Soo Rho;Joon Sik Hwang;Jin Kim;Jin Hwan Kim;Sung Jin Cho;Hyung Sik Shin
두경부 편평 세포암의 원발 병소와 전이 경부 림프절에서 Matrix Metalloproteinase-9와 Basic Fibroblast Growth Factor의 발현
노영수;황준식;김진;김진환;조성진;신형식
Abstract
Objectives: Cancer lethality is usually the result of local invasion and metastasis of neoplastic cell from the primary tumor. Because of their ability to degrade extracellular matrix components, matrix metalloproteinases (MMPs) and basic fibroblast growth factor (bFGF) have been implicated in the breakdown of basement membrane and underlying stroma, thereby facilitating tumor growth and invasion. It has been well established that MMPs and bFGF expression correlate with cervical lymph node metastasis, but studies on expression in the metastatic cervical lymph node itself are not enough. We have analyzed matrix metalloproteinases (MMPs) and basic fibroblast growth factor (bFGF) in squamous cell carcinoma of the head and neck and metastatic cervical lymph node, and evaluated their relationship and clinicophathologic significance. Material and Methods: 20 cases of squamous cell carcinoma of the head and neck were entered on the study of immunohistochemical stains for MMP-9 and bFGF in the obtained tissue from primary tumor and metastatic cervical lymph node. We analyzed the relationship between MMP-9, bFGF expression of the primary tumor and metastatic node with age, sex, T-stage, N-stage, histologic grade, pathologic stage and disease free survival.
Results
Expression of MMP-9 and bFGF in cancer cell and metastatic lymph node was higher than that in normal cell and lymph node. According to histologic differentiation, expression of MMP-9 of the metastatic cervical lymph node was higher than primary tumor. Considering to other clinicopathologic factor, no statistical significance was seen in MMP-9 and bFGF.
Conclusion
We found that expression of MMP-9 is higher in the metastatic lymph node than primary tumor in the poorly differentiated squamous cell carcinoma. But we don't find out the statistical significance in relation between bFGF and clinical factors. So we guess that some different mechanism of MMP-9 and bFGF in Head & Neck squamous cell carcinoma exist. Further studies will be necessary to establish their pathogenesis in the Head and Neck cancer.
Key Words: MMP-9, bFGF, Metastatic lymph node, Squamous cell carcinoma


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