Expression of CXCR4 and non-small cell lung cancer prognosis: a meta-analysis
UMass Chan Affiliations
Department of Radiation OncologyDocument Type
Journal ArticlePublication Date
2015-05-15Keywords
CXCR4NSCLC
clinicopathological features
meta-analysis
prognosis
Cancer Biology
Neoplasms
Oncology
Radiology
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Show full item recordAbstract
PURPOSE: The prognostic value of aberrant C-X-C chemokine receptor type 4 (CXCR4) levels in NSCLC has been described in empirical studies. This meta-analysis evaluates the value of CXCR4 as a prognostic marker for NSCLC and determines the relationship between CXCR4 and clinicopathological features of NSCLC. METHODS: A comprehensive search of the English-language literature in PubMed, Embase, Google Scholar and Web of Science was performed. Articles containing sufficient published data to determine an estimate of the hazard ratio (HR) and a 95% confidence interval (95% CI) for over survival (OS) or disease-free survival (DFS) were selected. Of 417 potentially relevant studies, 10 eligible studies (1,334 NSCLC patients) met the inclusion criteria. RESULTS: Overall, high CXCR4 expression was significantly associated with a poor OS rate (HR=1.59, 95% CI=1.36-1.87, P < 0.001) while the association with DFS was not statistically significant (HR=1.00, 95% CI=0.37-2.69, P=0.993). Stratified analysis by subcellular localization found that CXCR4 overexpression in the non-nucleus predicts poor OS (HR=1.65, 95% CI=1.40-1.95, P < 0.001) and DFS (HR=3.06, 95% CI=2.15-4.37, P < 0.001), but elevated CXCR4 expression in the nucleus was positively associated with DFS (HR=0.44, 95% CI=0.26-0.75, P=0.002). NSCLC patients with CXCR4 expression were more likely to be diagnosed with adenocarcinoma cancer (OR=1.45, 95% CI=1.07-1.95, P=0.016), lymph node involvement (OR=0.69, 95% CI=0.50-0.96, P=0.027), and distant metastasis (OR=0.36, 95% CI=0.14-0.93, P=0.035). CONCLUSION: Aberrant overexpression of CXCR4 is associated with worse overall survival, adenocarcinoma histology, distant metastasis, lymph node involvement in NSCLC.Source
Int J Clin Exp Med. 2015 May 15;8(5):7435-45. eCollection 2015. Available from: PubMed CentralPermanent Link to this Item
http://hdl.handle.net/20.500.14038/47976PubMed ID
26221287Related Resources
Link to Article in PubMedRights
Open access. Once the paper is published, the copyright will be released by the publisher under the “Creative Commons Attribution Noncommercial License”, enabling the unrestricted non-commercial use, distribution, and reproduction of the published article in any medium, provided that the original work is properly cited. (from http://www.ijcem.com/guidelines.html)