LncRNA and mRNA expression profiles of glioblastoma multiforme (GBM) reveal the potential roles of lncRNAs in GBM pathogenesis.
Glioblastoma multiforme (GBM) is the most common brain malignancy. Long non-coding RNAs (lncRNAs) are aberrantly expressed in many cancers and are involved in their cell proliferation, apoptosis, angiogenesis, and invasion. The functional roles of lncRNAs in GBM are less known. We analyzed a cohort of exon microarray datasets from The Cancer Genome Atlas. The differently expressed lncRNAs and mRNA were subjected to construct lncRNA-mRNA co-expression network. Probable functions for lncRNAs were predicted according to lncRNA-mRNA network and genomic adjacency by GO and pathway analysis. The expression of lncRNAs and mRNAs in GBM tissues versus normal brain tissues was examined by quantitative reverse transcription polymerase chain reaction. The 398 lncRNAs and 1995 mRNAs were identified as distinctively expressed in GBM. Probable functional roles for 98 lncRNAs were involved in 30 pathways and 32 gene functions related to tumorigenesis, development, and metastasis. The identified sets of key lncRNAs specific to GBM were subsequently verified by experiment in GBM tissues. Our reports predict the biological functions of a multitude of lncRNAs in GBM that could be potential diagnostic and prognostic biomarkers as well as therapeutic targets. Moreover, our research provides a road map for the identification and analysis of lncRNAs in tumors.
Institute of Medicinal Plant Development, Peking Union Medical College, Chinese Academy of Medical Sciences, 151 Malianwabei Road, Beijing, 100191, China.|Core Laboratory for Clinical Medical Research, Beijing Tian Tan Hospital, Capital Medical University, 6 Tiantan Xili, Beijing, 100050, China.
Qi
http://orcid.org/0000-0001-5591-3761
Q
Li
Institute of Medicinal Plant Development, Peking Union Medical College, Chinese Academy of Medical Sciences, 151 Malianwabei Road, Beijing, 100191, China.
Hongmei
H
Jia
Core Laboratory for Clinical Medical Research, Beijing Tian Tan Hospital, Capital Medical University, 6 Tiantan Xili, Beijing, 100050, China.
Haowen
H
Li
Core Laboratory for Clinical Medical Research, Beijing Tian Tan Hospital, Capital Medical University, 6 Tiantan Xili, Beijing, 100050, China.
Chengya
C
Dong
Core Laboratory for Clinical Medical Research, Beijing Tian Tan Hospital, Capital Medical University, 6 Tiantan Xili, Beijing, 100050, China. tiantanwyj@aliyun.com.|Department of Clinical Laboratory Diagnosis, Beijing Tian Tan Hospital, Capital Medical University, Beijing, China. tiantanwyj@aliyun.com.
Yajie
Y
Wang
Institute of Medicinal Plant Development, Peking Union Medical College, Chinese Academy of Medical Sciences, 151 Malianwabei Road, Beijing, 100191, China. zmzou@implad.ac.cn.
Zhongmei
Z
Zou
D017209:Apoptosis; D001921:Brain / Q000473:pathology; D001932:Brain Neoplasms / Q000235:genetics* / Q000473:pathology; D049109:Cell Proliferation; D002471:Cell Transformation, Neoplastic / Q000235:genetics*; D020869:Gene Expression Profiling; D015972:Gene Expression Regulation, Neoplastic; D005909:Glioblastoma / Q000235:genetics* / Q000473:pathology; D006801:Humans; D020411:Oligonucleotide Array Sequence Analysis; D062085:RNA, Long Noncoding / Q000096:biosynthesis / Q000235:genetics*; D012333:RNA, Messenger / Q000096:biosynthesis / Q000235:genetics*; D020133:Reverse Transcriptase Polymerase Chain Reaction
D062085:RNA, Long Noncoding; D012333:RNA, Messenger
Biological functions; Glioblastoma multiforme; LncRNAs; Microarray analysis