Prognostic and clinical significance of claudin-4 in gastric cancer: A meta-analysis

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Abstract

Background: The current reports on the association of claudin-4 expression with gastric cancer outcome were inconsistent. Thus, we conducted a meta-analysis to assess the association of claudin-4 expression with the prognosis and clinical parameters more precisely. Methods: Systematic searches on PubMed, Embase, and Cochrane Library prior to December 2014 were performed. The pooled hazard ratio (HR) with its 95 % confidence interval (95 %CI) was used to assess the prognostic value of claudin-4 expression with gastric cancer patients, and the pooled odds ratio (OR) with its 95 %CI was used to assess the association with clinical parameters. Results: Nine studies with a total of 1265 gastric cancer patients were included. Overall, the pooled results showed that over-expression of claudin-4 was associated with a poor survival in gastric cancer patients (HR: 2.01, 95 % CI: 1.62-2.50). Over-expression of claudin-4 was also associated with advanced stage (OR: 1.96, 95 % CI: 1.08-3.56) and lymphoid node metastasis (OR: 1.72, 95 % CI: 1.05-2.81) of gastric cancer patients. No significant publication bias was found among the studies (P > 0.05). Conclusions: This meta-analysis shows that over-expression of claudin-4 is associated with progress of gastric cancer and poor prognosis of gastric cancer patients.

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Liu, J. X., Wei, Z. Y., Chen, J. S., Lu, H. C., Hao, L., & Li, W. J. (2015). Prognostic and clinical significance of claudin-4 in gastric cancer: A meta-analysis. World Journal of Surgical Oncology, 13(1). https://doi.org/10.1186/s12957-015-0626-2

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