已发表论文

DAPK 启动子高甲基化在肺癌中的临床意义: 一项综合分析

 

Authors Li Y, Zhu M, Zhang X, Cheng D, Ma X

Published Date March 2015 Volume 2015:9 Pages 1785—1796

DOI http://dx.doi.org/10.2147/DDDT.S78012

Received 23 November 2014, Accepted 6 January 2015, Published 24 March 2015

Abstract: Death-associated protein kinase 1 (DAPK) is an important serine/threonine kinase involved in various cellular processes, including apoptosis, autophagy, and inflammation. DAPK expression and activity are deregulated in a variety of diseases including cancer. Methylation of the DAPK  gene is common in many types of cancer and can lead to loss of DAPK expression. However, the association between DAPK  promoter hypermethylation and the clinicopathological significance of lung cancer remains unclear. In this study, we searched the MEDLINE, PubMed, Web of Science, and Scopus databases, systematically investigated the studies of DAPK  promoter hypermethylation in lung cancer and quantified the association between DAPK  promoter hypermethylation and its clinicopathological significance by meta-analysis. We observed that the frequency of DAPK  methylation was significantly higher in lung cancer than in non-malignant lung tissues (odds ratio 6.02, 95% confidence interval 3.17–11.42,<0.00001). The pooled results also showed the presence of a prognostic impact of DAPK  gene methylation in lung cancer patients (odds ratio 3.63, 95% confidence interval 1.09–12.06,=0.04). In addition, we summarized these findings and discuss tumor suppressor function, clinicopathological significance, and potential drug targeting of DAPK in lung cancer.
Keywords: lung, adenocarcinoma, squamous cell carcinoma, non-small cell lung cancer, death-associated protein kinase gene, DAPK , methylation, meta-analysis