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The prognostic value of CD133 expression in non-small cell lung cancer: a meta-analysis

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Tumor Biology

Abstract

CD133 has been identified as a potential cancer stem cell (CSC) marker in non-small cell lung cancer (NSCLC). However, the clinical and prognostic significance of CD133 in NSCLC remains controversial. In this study, a meta-analysis with a total number of 13 studies was performed to clarify the association between CD133 expression and clinical outcomes in publications up to June 2013. Odds ratios (ORs) and their 95 % confidence intervals (CIs) were used to assess the association between CD133 expression and the clinicopathological characteristics of NSCLC. Hazard ratios (HRs) and their 95 % CI were used to quantify the predictive ability of CD133 on NSCLC prognosis. Analysis of these data showed that CD133 expression was not associated with any clinicopathological parameters except for histology (pooled OR = 1.35, 95%CI = 1.04–1.76, P = 0.024) and tumor differentiation (pooled OR = 3.19, 95%CI = 1.10–9.21, P = 0.032). Simultaneously, we also found that positive CD133 expression was not associated with disease-free survival (DFS) (pooled HR = 1.76, 95 % CI = 0.87–3.57, P = 0.114, random-effect) but was associated with overall survival (OS) (pooled HR = 2.06, 95 % CI = 1.08–3.91, P = 0.027, random-effect). Overall, it is appropriate to regard CD133 expression as a potential prognostic factor for the OS of NSCLC patients.

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Acknowledgments

Research supported by National Natural Science Foundation of China (#81370078, #30930080, #81161120537, and #81001231), malignant tumor biomarkers in Jiangsu Province Key Laboratory (#11ZLKF09), the Natural Science Foundation of Jiangsu Province (#BK2012840), the Postdoctoral Science Foundation of China (#20100481165), Undergraduates Practice and InnovationTraining Project of Jiangsu Higher Education Institutes (#2012JSSPITP1021), and the Priority Academic Program Development of Jiangsu Higher Education Institutions (Public Health and Preventive Medicine).

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Correspondence to Yan Zhou or Shouyu Wang.

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Weimin Wang, Yansu Chen, and Jianliang Deng contributed equally to this work.

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Wang, W., Chen, Y., Deng, J. et al. The prognostic value of CD133 expression in non-small cell lung cancer: a meta-analysis. Tumor Biol. 35, 9769–9775 (2014). https://doi.org/10.1007/s13277-014-2270-9

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  • DOI: https://doi.org/10.1007/s13277-014-2270-9

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