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《Chinese Journal of Cancer》 2008-02
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Expression and Significance of E-cadherin, CD44v6, and Proliferating Cell Nuclear Antigen in Non-small Cell Lung Cancer

WENG Mi-Xia1, WU Cui-Huan2, YANG Xiu-Ping1 1. Department of Pathology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, P. R. China 2. Department of Pathology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, P. R. China  
BACKGROUND OBJECTIVE: E-cadherin (E-cad), CD44v6 and proliferating cell nuclear antigen (PCNA) play important roles in invasion and metastasis of cancers. This study was to investigate the correlations of the expression of E-cad, CD44v6, and PCNA to the invasion, metastasis, and prognosis of non-small cell lung cancer (NSCLC). METHODS: The expression of E-cad, CD44v6 and PCNA in 86 specimens of NSCLC and 40 specimens of adjacent normal tissues were detected by EnVision immunohistochemistry. RESULTS: The high expression rate of E-cad was significantly lower in NSCLC than in adjacent normal tissues (53.5% vs. 80.0%, P0.05). E-cad staining in NSCLC tissues was correlated to differentiation, lymph node metastasis and TNM stage (P0.05). The high expression rate of CD44v6 was 44.2% in NSCLC, and 0 in adjacent normal tissues. CD44v6 staining in NSCLC tissues was correlated to classification, lymph node metastasis and TNM stage (P0.05). The high expression rate of PCNA was 48.8% in NSCLC, and 0 in adjacent normal tissues. PCNA staining was correlated to lymph node metastasis (P0.05). PCNA expression was negatively correlated to E-cad expression (r=-0.554, P0.05), and positively correlated to CD44v6 expression (r=0.688, P0.05). Univariate analysis indicated that E-cad, CD44v6, and PCNA were prognostic factors of NSCLC. Multivariate analysis showed that E-cad and TNM stage were independent prognostic indicators (P0.05). CONCLUSIONS: E-cad, CD44v6 and PCNA play important roles in invasion and metastasis of NSCLC. The expression of E-cad, CD44v6 and PCNA may be of prognostic value in patients with NSCLC.
【CateGory Index】: R734.2
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