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  • Title: Prognostic Significance of EZH2 Expression in Non-Small Cell Lung Cancer: A Meta-analysis.
    Author: Wang X, Zhao H, Lv L, Bao L, Wang X, Han S.
    Journal: Sci Rep; 2016 Jan 12; 6():19239. PubMed ID: 26754405.
    Abstract:
    Various studies examined the relationship between EZH2 overexpression with the clinical outcome in patients with non-small cell lung cancer (NSCLC), but yielded inconsistent results. Electronic databases updated to Dec 2014 were searched to find relevant studies. A meta-analysis was conducted with eligible studies which quantitatively evaluated the relationship between EZH2 overexpression and survival of patients with NSCLC Survival data were aggregated and quantitatively analyzed. We performed a meta-analysis of 10 studies (n = 1,695 patients) that evaluated the correlation between EZH2 overexpression and survival in patients with lung cancer. Combined hazard ratios suggested that EZH2 overexpression was associated with poor prognosis of overall survival (OS) (HR = 1.68, 95% CI: 1.42-1.93) in patients with lung cancer. In the stratified analysis, significantly risks were found among Asians (HR = 1.33, 95% CI: 1.62-1.70), lung adenocarcinoma patients (HR = 1.75, 95% CI: 1.38-2.52, in stage I NSCLC patients (HR = 2.51, 95% CI: 1.23-3.79), but not among Caucasians. EZH2 overexpression indicates a poor prognosis for patients with NSCLC, this effect appears also significant when the analysis is restricted in Asian population, lung AC and stage I patients, but not among Caucasians.
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