Predictive value of laminin-5 and membrane type 1-matrix metalloproteinase expression for cervical lymph node metastasis in T1 and T2 squamous cell carcinomas of the tongue and floor of the mouth.

Predictive value of laminin-5 and membrane type 1-matrix metalloproteinase expression for cervical lymph node metastasis in T1 and T2 squamous cell carcinomas of the tongue and floor of the mouth. Research Abstract Details 

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Predictive value of laminin-5 and membrane type 1-matrix metalloproteinase expression for cervical lymph node metastasis in T1 and T2 squamous cell carcinomas of the tongue and floor of the mouth. Abstract Text:

Kenji Kawano,Shigetaka Yanagisawa,Kenji Kawano,Shigetaka Yanagisawa,

BACKGROUND: Laminin-5 (Ln-5) cleaved by membrane type 1-matrix metalloproteinase (MT1-MMP) enhances the migration of tumor cells. The purpose of this study was to determine whether or not enhanced expression of both Ln-5 and MT1-MMP was associated with lymph node metastasis in patients with T1 and T2 squamous cell carcinoma (SCC) of the tongue and floor of the mouth. METHODS: By use of biopsy specimens of primary tumors from 57 patients, intratumoral expression of Ln-5 and MT1-MMP was evaluated immunohistochemically and its association with node metastasis analyzed. RESULTS: The tumors were categorized into three groups: Ln-5 focal type/MT1-MMP (-) (group I, n = 14), Ln-5 focal type/ MT1-MMP (+) and Ln-5 diffuse type/MT1-MMP (-) (group II, n = 16), and Ln-5 diffuse type/MT1-MMP (+) (group III, n = 27). The incidence of node metastasis (initial and latent metastases) was two of 14 (14.3%), five of 16 (31.3%), and 15 of 27 (55.6%) in groups I, II, and III, respectively. Multivariate analysis identified tumor thickness (odds ratio, 4.751; p = .0152) and Ln-5/ MT1-MMP expression (odds ratio, 3.795, p = .0304) as independent factors of node metastasis. Moreover, in 35 patients with N0 disease, Ln-5/MT1-MMP expression was the only parameter associated with latent node metastasis (odds ratio, 12.800, p = .0247). CONCLUSION: These results suggest that immunohistochemical evaluation of Ln-5 and MT1-MMP expression is useful for identifying patients with T1 and T2 SCC of the tongue and floor of the mouth who should be treated with elective neck dissection.

Predictive value of laminin-5 and membrane type 1-matrix metalloproteinase expression for cervical lymph node metastasis in T1 and T2 squamous cell carcinomas of the tongue and floor of the mouth. Publishing Authors By Initials

K Kawano,S Yanagisawa,K Kawano,S Yanagisawa,

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Predictive value of laminin-5 and membrane type 1-matrix metalloproteinase expression for cervical lymph node metastasis in T1 and T2 squamous cell carcinomas of the tongue and floor of the mouth. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Head & neck

VOLUME: 28

Page Numbers: 525-33

Journal Abbreviation: Head Neck

ISSN: 1043-3074

DAY: 18

MONTH: Jun

YEAR: 2006

Predictive value of laminin-5 and membrane type 1-matrix metalloproteinase expression for cervical lymph node metastasis in T1 and T2 squamous cell carcinomas of the tongue and floor of the mouth. Information

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LANGUAGE: eng

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Predictive value of laminin-5 and membrane type 1-matrix metalloproteinase expression for cervical lymph node metastasis in T1 and T2 squamous cell carcinomas of the tongue and floor of the mouth. Keywords Mesh Terms:

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AFFILIATION: Department of Oncological Science, Division of Oral and Maxillo-Facial Surgery, Faculty of Medicine, Oita University, 1 Idaigaoka, Hasama-machi, Oita 879-5593, Japan. kekawano@med.oita-u.ac.jp

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