Expressions of matrix metalloproteinases in early-stage oral squamous cell carcinoma as predictive indicators for tumor metastases and prognosis

被引:161
作者
Katayama, A [1 ]
Bandoh, N [1 ]
Kishibe, K [1 ]
Takahara, M [1 ]
Ogino, T [1 ]
Nonaka, S [1 ]
Harabuchi, Y [1 ]
机构
[1] Asahikawa Med Coll, Dept Otolaryngol Head & Neck Surg, Asahikawa, Hokkaido 0788510, Japan
关键词
D O I
10.1158/1078-0432.CCR-0864-02
中图分类号
R73 [肿瘤学];
学科分类号
100214 ;
摘要
Purpose: Matrix metalloproteinase (MMP)-2 and MMP-9 are considered to play an important role in the metastasis of malignant tumors. Membrane type 1-MMP (MT1-MMP) and tissue inhibitor of metalloproteinase 2 (TIMP-2) are essential factors for the activation of pro-MMP-2. There are some reports about expressions of MMP family in relationship to clinical features of head and neck squamous cell carcinoma (SCC), but the results were not uniform and the prognostic value of their expressions remains unclear. Experimental Design: The study group consisted of 53 Japanese patients with oral SCC of early stage (T1.2N0M0). Expressions of MMP-2, MMP-9, MT1-MMP, and TIMP-2 were examined using immunohistological methods on the sections of tumor biopsy samples. The intensity of MMP expression was categorized into four grades (score 0-3) by semiquantitative analysis using a computer with NIH image, and correlation between this grade and clinical aspects such as tumor recurrence, metastasis, and prognosis were examined. Results: The expression score of MMP-2 correlated with that of MMP-9 (r = 0.291; P = 0.036), MT1-MMP (r = 0.286; P = 0.039), and TIMP-2 (r = 0.257; P = 0.050). Patients who developed regional lymph node and/or distant metastasis showed significantly higher scores in the expressions of MMP-9 and TIMP-2 than patients without any tumor metastases (P = 0.036 and P = 0.043, respectively). Kaplan-Meier analyses as well as univariate analyses using the Cox proportional hazards model showed that expression of MMP-9 (P = 0.0143 and P = 0.0418, respectively) and marked expression of TIMP-2 (P < 0.0001 and P = 0.0004, respectively) correlated with worse-cause-specific survival. Multivariate analysis confirmed that marked expression of TIMP-2 was the only independent factor for cause-specific death (hazard ratio, 7.543; confidence interval, 1.693-33.610; P = 0.0080). Conclusions: Expressions of MMP-9 and TIMP-2 have predictive value for tumor metastases and cause-specific survival. High expression of TIMP-2 is the most independent factor for worse prognosis in early-stage oral SCC.
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页码:634 / 640
页数:7
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