Carcinogenesis, Teratogenesis & Mutagenesis ›› 2016, Vol. 28 ›› Issue (2): 97-102,106.doi: 10.3969/j.issn.1004-616x.2016.02.003

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Relationship between aberrant expression of E-cadherin and clinicopathological characteristics of nasopharyngeal carcinoma: a Meta-analysis

JING Shaowu1, XU Qing2, WANG Jun1, YANG Congrong1, LI Guangqing3, ZHAO Zhen4, ZHAO Zhijun4, JING Shanghua4   

  1. 1. Department of Radiation Oncology, Fourth Hospital of Hebei Medical University, Shijiazhuang 050011;
    2. Department of Ultrasonography, Fourth Hospital of Hebei Medical University, Shijiazhuang 050011;
    3. Department of Oncology, Seventh Hospital of Baoding, Baoding 072150;
    4. Department of Otolaryngology-Head and Neck Surgery, Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, Hebei, China
  • Received:2015-11-02 Revised:2015-12-11 Online:2016-03-31 Published:2016-03-31

Abstract: OBJECTIVE: To understand the relationship between aberrant expression of E-cadherin in nasopharyngeal carcinoma (NPC) and clinicopathological features of NPC patients for clinical applications. METHODS: International publications about E-cadherin and NPC were selected from the Cochrane Library, Pubmed, EMbase database, and Chinese publications were from CBM, CNKI. All analyses were performed by software STATA 11.0. Abnormal expression, degree of differentiation, T stage, lymph node metastasis, and clinical stage were analyzed using pooled odds ratio (OR) with 95% confidence interval (CI). RESULTS: A total of 16 studies including 1040 patients were enrolled in the Meta-analysis. It was shown that expression of E-cadherin was significantly increased in NPC compared to that in normal tissues (OR=0.096, 95% CI:0.036-0.252, P=0.000). In addition, the aberrant expression of E-cadherin was significantly associated with the degree of differentiation, lymph node metastasis and clinical stages (OR=0.232, 95% CI:0.061-0.884, P=0.032;OR=0.324, 95% CI:0.198-0.53, P=0.000;OR=0.441, 95% CI:0.232- 0.835, P=0.012). CONCLUSION: NPC often showed aberrant expression of E-cadherin. In addition, patients with the aberrant expression were prone to having tumors at lower differentiation, with lymph node metastasis and at late clinical stage. E-cadherin may be an indicator for differentiation, lymph node metastasis and clinical stage.

Key words: E-cadherin, aberrant expression, nasopharyngeal carcinoma, Meta- analysis

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