已发表论文

对 CXCR4 在非小细胞肺癌 (NSCLC) 治疗中作为预后指标和潜在的药物靶点的一项荟萃分析

 

Authors Zhang C, Li J, Han Y, Jiang J

Published Date June 2015 Volume 2015:9 Pages 3267—3278

DOI http://dx.doi.org/10.2147/DDDT.S81564

Received 25 January 2015, Accepted 14 April 2015, Published 24 June 2015

Approved for publication by Professor Shu-Feng Zhou

Background: Recent reports have shown that C-X-C chemokine receptor type 4 (CXCR4) is a candidate oncogene in several types of human tumors, including non-small cell lung cancer (NSCLC). However, the correlation between CXCR4 expression and clinicopathological characteristics of NSCLC remains controversial and has not been emphasized. The aim of this study is to quantitatively evaluate the association of CXCR4 expression with the incidence of NSCLC and clinicopathological characteristics by performing a meta-analysis.
Methods: A detailed literature search was carried out for related research publications. Only articles in which CXCR4 expression was detected by immunohistochemical staining were included. Odds ratio (OR) and hazard ratio (HR) with 95% confidence intervals (CIs) were calculated and summarized.
Results: Final analysis of 1,872 NSCLC patients from 19 eligible studies was performed. We observed that CXCR4 expression was significantly higher in NSCLC than in normal lung tissue, based on the pooled OR from ten studies, including 678 NSCLCs and 189 normal lung tissues (OR =16.66, 95% CI =6.94–40.02, <0.00001). CXCR4 expression was also significantly associated with clinical stages, metastatic status, and overall survival (OS) in NSCLC patients. In addition, CXCR4  mRNA high expression was found to correlate with worse OS of all NSCLC patients followed for 20 years, HR =1.24, =0.0047.
Conclusion: The present meta-analysis indicated that CXCR4 protein expression is associated with an increased risk and worse survival in NSCLC patients. The aberrant CXCR4 protein and mRNA expression play an important role in the carcinogenesis and metastasis of NSCLC.
Keywords: prognosis, meta-analysis, odds ratio, hazard ratio