Claudin-4 expression is associated with tumor invasion, MMP-2 and MMP-9 expression in gastric cancer

  • Authors:
    • Tsann-Long Hwang
    • Li-Yu Lee
    • Chee-Chan Wang
    • Ying Liang
    • Shu-Fang Huang
    • Chi-Ming Wu
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  • Published online on: July 12, 2010     https://doi.org/10.3892/etm.2010.116
  • Pages: 789-797
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Abstract

Claudin-4 is a member of the claudin family, a large family of transmembrane proteins that are essential in the formation and maintenance of tight junctions. Matrix metalloproteinase (MMP)-2 and -9 degrade type IV collagen of the extracellular matrix and basal membranes. Claudin-4 activates MMP-2, indicating that claudin-mediated increased cancer cell invasion may result from the activation of MMP proteins. In the present study, we used immunohistochemistry to examine the expression levels of claudin-4, MMP-2 and MMP-9 in 189 gastric cancer samples, and analyzed their correlation with tumor invasion, clinicopathologic parameters and clinical outcome. The relationship between claudin-4 expression and MMP-2 and -9 expression was also investigated. The expression of claudin-4 was found to be significantly higher in gastric cancer cases with advanced depth of wall invasion, lymph node metastasis, lymphatic invasion and higher TNM stage. Further analysis revealed claudin-4 expression to be significantly correlated with the expression of MMP-2 and -9. Kaplan-Meier survival analysis indicated that MMP-9 expression was correlated with poor prognosis. These results suggest that claudin-4 expression is associated with tumor invasion and with MMP-2 and -9 expression in gastric cancer. Additionally, MMP-9 expression was demonstrated to serve as a prognostic factor in patients with gastric cancer.
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September-October 2010
Volume 1 Issue 5

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

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Spandidos Publications style
Hwang T, Lee L, Wang C, Liang Y, Huang S and Wu C: Claudin-4 expression is associated with tumor invasion, MMP-2 and MMP-9 expression in gastric cancer. Exp Ther Med 1: 789-797, 2010
APA
Hwang, T., Lee, L., Wang, C., Liang, Y., Huang, S., & Wu, C. (2010). Claudin-4 expression is associated with tumor invasion, MMP-2 and MMP-9 expression in gastric cancer. Experimental and Therapeutic Medicine, 1, 789-797. https://doi.org/10.3892/etm.2010.116
MLA
Hwang, T., Lee, L., Wang, C., Liang, Y., Huang, S., Wu, C."Claudin-4 expression is associated with tumor invasion, MMP-2 and MMP-9 expression in gastric cancer". Experimental and Therapeutic Medicine 1.5 (2010): 789-797.
Chicago
Hwang, T., Lee, L., Wang, C., Liang, Y., Huang, S., Wu, C."Claudin-4 expression is associated with tumor invasion, MMP-2 and MMP-9 expression in gastric cancer". Experimental and Therapeutic Medicine 1, no. 5 (2010): 789-797. https://doi.org/10.3892/etm.2010.116