The expression and clinical significance of matrix metalloproteinase 7 and tissue inhibitor of matrix metalloproteinases 2 in clear cell renal cell carcinoma

  • Authors:
    • Hongsheng Lu
    • Zhaohui Yang
    • Hui Zhang
    • Meifu Gan
    • Tao Zhou
    • Siling Wang
  • View Affiliations

  • Published online on: December 17, 2012     https://doi.org/10.3892/etm.2012.859
  • Pages: 890-896
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Abstract

Renal cell carcinoma (RCC) is one of the most common malignant neoplasms in the urinary system, and has a high frequency of local invasion and distant metastasis. This study assessed the expression and clinical significance of matrix metalloproteinase 7 (MMP-7) and tissue inhibitor of matrix metalloproteinases 2 (TIMP-2) in human clear cell renal cell carcinoma (CCRCC) by tissue microarray, immunohistochemistry and RT-PCR analysis. The expression of MMP-7 in CCRCC tissues was significantly higher compared with that in the control group (CG) and TIMP-2 expression in CCRCC, by contrast, was lower compared with that in the CG. The expression of MMP-7 and TIMP-2 in the CCRCC tissues was significantly correlated with the pathological grade and clinical stage. Log-rank analyses indicated that upregulation of MMP-7 and downregulation of TIMP-2 expression may occur during the progression of CCRCC, and Cox multivariate survival rate analysis demonstrated that there was also a positive correlation between the pathological grade, clinical stage, MMP-7 expression and survival rate. Thus, MMP-7 is an independent prognostic factor and MMP-7 and TIMP-2 may serve as useful molecular markers for evaluating prognosis in CCRCC patients.
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March 2013
Volume 5 Issue 3

Print ISSN: 1792-0981
Online ISSN:1792-1015

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Spandidos Publications style
Lu H, Yang Z, Zhang H, Gan M, Zhou T and Wang S: The expression and clinical significance of matrix metalloproteinase 7 and tissue inhibitor of matrix metalloproteinases 2 in clear cell renal cell carcinoma. Exp Ther Med 5: 890-896, 2013
APA
Lu, H., Yang, Z., Zhang, H., Gan, M., Zhou, T., & Wang, S. (2013). The expression and clinical significance of matrix metalloproteinase 7 and tissue inhibitor of matrix metalloproteinases 2 in clear cell renal cell carcinoma. Experimental and Therapeutic Medicine, 5, 890-896. https://doi.org/10.3892/etm.2012.859
MLA
Lu, H., Yang, Z., Zhang, H., Gan, M., Zhou, T., Wang, S."The expression and clinical significance of matrix metalloproteinase 7 and tissue inhibitor of matrix metalloproteinases 2 in clear cell renal cell carcinoma". Experimental and Therapeutic Medicine 5.3 (2013): 890-896.
Chicago
Lu, H., Yang, Z., Zhang, H., Gan, M., Zhou, T., Wang, S."The expression and clinical significance of matrix metalloproteinase 7 and tissue inhibitor of matrix metalloproteinases 2 in clear cell renal cell carcinoma". Experimental and Therapeutic Medicine 5, no. 3 (2013): 890-896. https://doi.org/10.3892/etm.2012.859