1
|
Chen Y, Guo Y, Li S, Xu J, Wang X, Ning W, Ma L, Qu Y, Zhang M, Zhang H. Identification of N6-Methyladenosine-Related lncRNAs as a Prognostic Signature in Glioma. Front Oncol 2022; 12:789283. [PMID: 35311131 PMCID: PMC8927984 DOI: 10.3389/fonc.2022.789283] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Accepted: 02/09/2022] [Indexed: 12/17/2022] Open
Abstract
N6-methyladenosine (m6A) modification is the most abundant modification in long noncoding RNAs (lncRNAs). Current studies have shown that the abnormal expression of m6A-related genes is closely associated with the tumorigenesis and progression of glioma. However, the role of m6A-related lncRNAs in glioma development is still unclear. Herein, we screened 566 m6A-related lncRNAs in glioma from The Cancer Genome Atlas (TCGA) database. The expression pattern of these lncRNAs could cluster samples into two groups, in which various classical tumor-related functions and the tumor immune microenvironment were significantly different. Subsequently, a nine-factor m6A-related lncRNA prognostic signature (MLPS) was constructed by using a LASSO regression analysis in the training set and was validated in the test set and independent datasets. The AUC values of the MLPS were 0.881, 0.918 and 0.887 for 1-, 3- and 5-year survival in the training set, respectively, and 0.856, 0.916 and 0.909 for 1-, 3-, and 5-year survival in the test set, respectively. Stratification analyses of the MLPS illustrated its prognostic performance in gliomas with different characteristics. Correlation analyses showed that the infiltrations of monocytes and tumor-associated macrophages (TAMs) were significantly relevant to the risk score in the MLPS. Moreover, we detected the expression of four MLPS factors with defined sequences in glioma and normal cells by using RT-PCR. Afterwards, we investigated the functions of LNCTAM34A (one of the MLPS factors) in glioma cells, which have rarely been reported. Via in vitro experiments, LNCTAM34A was demonstrated to promote the proliferation, migration and epithelial-mesenchymal transition (EMT) of glioma cells. Overall, our study revealed the critical role of m6A-related lncRNAs in glioma and elucidated that LNCTAM34A could promote glioma proliferation, migration and EMT.
Collapse
Affiliation(s)
- Yujia Chen
- Department of Neurosurgery, Sanbo Brain Hospital, Capital Medical University, Beijing, China
| | - Yuduo Guo
- CAS Key Laboratory of Infection and Immunity, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
| | - Shenglun Li
- Department of Neurosurgery, Sanbo Brain Hospital, Capital Medical University, Beijing, China
| | - Jiacheng Xu
- Department of Neurosurgery, Sanbo Brain Hospital, Capital Medical University, Beijing, China
| | - Xiang Wang
- Department of Neurosurgery, Sanbo Brain Hospital, Capital Medical University, Beijing, China
| | - Weihai Ning
- Department of Neurosurgery, Sanbo Brain Hospital, Capital Medical University, Beijing, China
| | - Lixin Ma
- Department of Neurosurgery, Sanbo Brain Hospital, Capital Medical University, Beijing, China
| | - Yanming Qu
- Department of Neurosurgery, Sanbo Brain Hospital, Capital Medical University, Beijing, China
| | - Mingshan Zhang
- Department of Neurosurgery, Sanbo Brain Hospital, Capital Medical University, Beijing, China
| | - Hongwei Zhang
- Department of Neurosurgery, Sanbo Brain Hospital, Capital Medical University, Beijing, China
| |
Collapse
|
2
|
Peer E, Moshitch-Moshkovitz S, Rechavi G, Dominissini D. The Epitranscriptome in Translation Regulation. Cold Spring Harb Perspect Biol 2019; 11:cshperspect.a032623. [PMID: 30037968 DOI: 10.1101/cshperspect.a032623] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The cellular proteome reflects the total outcome of many regulatory mechanisms that affect the metabolism of messenger RNA (mRNA) along its pathway from synthesis to degradation. Accumulating evidence in recent years has uncovered the roles of a growing number of mRNA modifications in every step along this pathway, shaping translational output. mRNA modifications affect the translation machinery directly, by influencing translation initiation, elongation and termination, or by altering mRNA levels and subcellular localization. Features of modification-related translational control are described, charting a new and complex layer of translational regulation.
Collapse
Affiliation(s)
- Eyal Peer
- Sackler School of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel; Cancer Research Center and Wohl Centre for Translational Medicine, Chaim Sheba Medical Center, Tel-Hashomer 5262160, Israel
| | - Sharon Moshitch-Moshkovitz
- Sackler School of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel; Cancer Research Center and Wohl Centre for Translational Medicine, Chaim Sheba Medical Center, Tel-Hashomer 5262160, Israel
| | - Gideon Rechavi
- Sackler School of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel; Cancer Research Center and Wohl Centre for Translational Medicine, Chaim Sheba Medical Center, Tel-Hashomer 5262160, Israel
| | - Dan Dominissini
- Sackler School of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel; Cancer Research Center and Wohl Centre for Translational Medicine, Chaim Sheba Medical Center, Tel-Hashomer 5262160, Israel
| |
Collapse
|