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  • Title: Clinicopathological and prognostic significance of Nestin expression in patients with non-small cell lung cancer: a systematic review and meta-analysis.
    Author: Li S, Lai Y, Fan J, Shen C, Che G.
    Journal: Clin Exp Med; 2017 May; 17(2):161-174. PubMed ID: 27099933.
    Abstract:
    Latest evidence indicates that Nestin expression may be associated with the high malignancy and poor prognosis of non-small cell lung cancer (NSCLC), but a relevant consensus has not been reached until now. Therefore, we conducted this meta-analysis to evaluate the clinicopathological and prognostic significance of Nestin expression in patients with NSCLC. We searched PubMed, EMBASE and the Web of Science for eligible full-text articles. Odds ratio (OR) and hazard ratio (HR) with 95 % confidence interval (95 % CI) severed as the summarized statistics. Q-test and I 2-statistic were applied to evaluate the heterogeneity, and sensitivity analysis was conducted for adjustments. Publication bias was detected by Begg's test and Egger's test. Finally, eight eligible articles with 834 NSCLC cases were included. Nestin expression was found to be significantly associated with the unfavorable outcomes of differentiation degree (OR: 2.47; 95 % CI 1.61-3.79; P < 0.001), lymphatic metastasis (OR: 2.45; 95 % CI 1.41-4.25; P = 0.001), TNM stage (OR: 1.73; 95 % CI 1.07-2.79; P = 0.025) and tumor size (OR: 2.68; 95 % CI 1.20-5.98; P = 0.016), but not associated with gender, age, smoking status and NSCLC subtypes. Nestin expression could significantly predict the lower overall survival of NSCLC (HR: 2.41; 95 % CI 1.72-3.38; P < 0.001). The prognostic value of Nestin remained statistically reliable in the subgroups stratified by statistical analysis, patients' origins and follow-up periods, but not significant in patients with squamous cell carcinoma. In conclusion, Nestin expression may be an independent predictor for the poor prognosis and clinicopathological characteristics of NSCLC. Further studies are necessary to validate our discoveries.
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