机构：[1]Hongqiao International Institute of Medicine, Shanghai Tongren Hospital and Faculty of Public Health, ShanghaiJiao Tong University School of Medicine, Shanghai 200025, China[2]Cancer Epidemiology Program, University ofHawaii Cancer Center, 701 Ilalo Street, Honolulu, HI 96813, USA[3]Key Laboratory of Cancer Prevention and Therapy,Tianjin Medical University Cancer Institute and Hospital, Tianjin, 300060, China
To identify what long non-coding RNAs (lncRNAs) are involved in non-small cell lung cancer (NSCLC), we analyzed microarray data on gene expression and methylation. Gene expression chip and HumanMethylation450BeadChip were used to interrogate genome-wide expression and methylation in tumor samples. Differential expression and methylation were analyzed through comparing tumors with adjacent non-tumor tissues. LncRNAs expressed differentially and correlated with coding genes and DNA methylation were validated in additional tumor samples using RT-qPCR and pyrosequencing. In vitro experiments were performed to evaluate lncRNA's effects on tumor cells. We identified 8,500 lncRNAs expressed differentially between tumor and non-tumor tissues, of which 1,504 were correlated with mRNA expression. Two of the lncRNAs, LOC146880 and ENST00000439577, were positively correlated with expression of two cancer-related genes, KPNA2 and RCC2, respectively. High expression of LOC146880 and ENST00000439577 were also associated with poor survival. Analysis of lncRNA expression in relation to DNA methylation showed that LOC146880 expression was down-regulated by DNA methylation in its promoter. Lowering the expression of LOC146880 or ENST00000439577 in tumor cells could inhibit cell proliferation, invasion and migration. Analysis of microarray data on gene expression and methylation allows us to identify two lncRNAs, LOC146880 and ENST00000439577, which may promote the progression of NSCLC.
基金：
National Natural Science Foundation of China (Grant No. 81573231); the
Natural Science Foundation of Shanghai (Grant No. 15ZR1424400); and the Translational Medicine Foundation
of Shanghai Jiao Tong University medical college (Grant No. 15ZH1001).
第一作者机构：[1]Hongqiao International Institute of Medicine, Shanghai Tongren Hospital and Faculty of Public Health, ShanghaiJiao Tong University School of Medicine, Shanghai 200025, China
共同第一作者：
通讯作者：
推荐引用方式(GB/T 7714)：
Nannan Feng,TraversChing,YuWang,et al.Analysis of Microarray Data on Gene Expression and Methylation to Identify Long Non-coding RNAs in Non-small Cell Lung Cancer[J].SCIENTIFIC REPORTS.2016,6:doi:10.1038/srep37233.
APA：
Nannan Feng,TraversChing,YuWang,Ben Liu,Hongyan Lin...&BiyunQian.(2016).Analysis of Microarray Data on Gene Expression and Methylation to Identify Long Non-coding RNAs in Non-small Cell Lung Cancer.SCIENTIFIC REPORTS,6,
MLA：
Nannan Feng,et al."Analysis of Microarray Data on Gene Expression and Methylation to Identify Long Non-coding RNAs in Non-small Cell Lung Cancer".SCIENTIFIC REPORTS 6.(2016)
