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Hashemi M, Mousavian Roshanzamir S, Orouei S, Daneii P, Raesi R, Zokaee H, Bikarannejad P, Salmani K, Khorrami R, Deldar Abad Paskeh M, Salimimoghadam S, Rashidi M, Hushmandi K, Taheriazam A, Entezari M. Shedding light on function of long non-coding RNAs (lncRNAs) in glioblastoma. Noncoding RNA Res 2024; 9:508-522. [PMID: 38511060 PMCID: PMC10950594 DOI: 10.1016/j.ncrna.2024.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 01/29/2024] [Accepted: 02/04/2024] [Indexed: 03/22/2024] Open
Abstract
The brain tumors and especially glioblastoma, are affecting life of many people worldwide and due to their high mortality and morbidity, their treatment is of importance and has gained attention in recent years. The abnormal expression of genes is commonly observed in GBM and long non-coding RNAs (lncRNAs) have demonstrated dysregulation in this tumor. LncRNAs have length more than 200 nucleotides and they have been located in cytoplasm and nucleus. The current review focuses on the role of lncRNAs in GBM. There two types of lncRNAs in GBM including tumor-promoting and tumor-suppressor lncRNAs and overexpression of oncogenic lncRNAs increases progression of GBM. LncRNAs can regulate proliferation, cell cycle arrest and metastasis of GBM cells. Wnt, STAT3 and EZH2 are among the molecular pathways affected by lncRNAs in GBM and for regulating metastasis of GBM cells, these RNA molecules mainly affect EMT mechanism. LncRNAs are involved in drug resistance and can induce resistance of GBM cells to temozolomide chemotherapy. Furthermore, lncRNAs stimulate radio-resistance in GBM cells. LncRNAs increase PD-1 expression to mediate immune evasion. LncRNAs can be considered as diagnostic and prognostic tools in GBM and researchers have developed signature from lncRNAs in GBM.
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Affiliation(s)
- Mehrdad Hashemi
- Department of Genetics, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Sophie Mousavian Roshanzamir
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Sima Orouei
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Pouria Daneii
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Rasoul Raesi
- Department of Nursing, Torbat Jam Faculty of Medical Sciences, Torbat Jam, Iran
- Department of Health Services Management, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Haleh Zokaee
- Department of Oral and Maxillofacial Medicine, Dental Research Center, Golestan University of Medical Sciences, Gorgan, Iran
| | - Pooria Bikarannejad
- Young Researchers and Elite Club, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Kiana Salmani
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Ramin Khorrami
- Department of Food Hygiene and Quality Control, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - Mahshid Deldar Abad Paskeh
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Shokooh Salimimoghadam
- Department of Biochemistry and Molecular Biology, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Mohsen Rashidi
- Department Pharmacology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
- The Health of Plant and Livestock Products Research Center, Mazandaran University of Medical Sciences, Sari, Iran
| | - Kiavash Hushmandi
- Department of Food Hygiene and Quality Control, Division of Epidemiology & Zoonoses, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - Afshin Taheriazam
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
- Department of Orthopedics, Faculty of Medicine, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Maliheh Entezari
- Department of Genetics, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
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Rahmani F, Mohammed Al-Asady A, Hanaie R, Zandigohar M, Faridnejad H, Payazdan M, Safavi P, Ryzhikov M, Hassanian SM. Interplay between lncRNA/miRNA and Wnt/ß-catenin signaling in brain cancer tumorigenesis. EXCLI JOURNAL 2023; 22:1211-1222. [PMID: 38204968 PMCID: PMC10776877 DOI: 10.17179/excli2023-6490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Accepted: 11/20/2023] [Indexed: 01/12/2024]
Abstract
Brain cancers are among the most aggressive malignancies with high mortality and morbidity worldwide. The pathogenesis of brain cancers is a very complicated process involving various genetic mutations affecting several oncogenic signaling pathways like Wnt/β-catenin axis. Uncontrolled activation of this oncogenic signaling is associated with decreased survival rate and poor prognosis in cancer patients. Long non-coding RNAs (lncRNAs) and microRNAs (miRNAs) were shown to play important roles in regulating cell proliferation, differentiation, and apoptosis by regulating the expression of their target genes. Aberrant expression of these non-coding RNAs (ncRNAs) was reported in many human cancers, including glioblastoma, medulloblastoma, meningioma, and pituitary adenoma. Multiple lncRNAs were shown to participate in brain tumor pathogenesis by targeting Wnt signaling regulatory miRNAs. SNHG7/miR-5095, PCAT6/miR-139-3p, SNHG6/miR-944, SNHG1/ miR-556-5p, SNHG17/ miR-506-3p, LINC00702/miR-4652-3p, DLGAP1-AS1/miR-515-5p, HOTAIR/miR-1, HOTAIR/miR-206, CRNDE/miR-29c-3p, AGAP2-AS1/ miR-15a/b-5p, CLRN1-AS1/miR-217, MEG3/miR-23b-3p, and GAS5/miR-27a-5p are identified lncRNA/miRNA pairs that are involved in this process. Therefore, recognition of the expression profile and regulatory role of ncRNAs on the Wnt signaling may offer a novel approach to the diagnosis, prognosis, and treatment of human cancers. This review summarizes previous data on the modulatory role of lncRNAs/miRNAs on the Wnt/β-catenin pathway implicated in tumor growth, EMT, metastasis, and chemoresistance in brain cancers.
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Affiliation(s)
- Farzad Rahmani
- Kashmar School of Medical Sciences, Mashhad University of Medical Sciences, Mashhad, Iran
- Metabolic Syndrome Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
- Basic Medical Sciences Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Abdulridha Mohammed Al-Asady
- Department of Medical Sciences, Faculty of Nursing, University of Warith Al-Anbiyaa, Iraq
- Department of Pharmacology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Reyhane Hanaie
- Metabolic Syndrome Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mehrdad Zandigohar
- Department of Biomedical Engineering, University of Illinois at Chicago, Chicago, IL, 60612, USA
| | | | - Mahya Payazdan
- Department of Biology, Faculty of Sciences, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Pegah Safavi
- Department of Medical Radiation, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Mikhail Ryzhikov
- Saint Louis University, School of Medicine, Saint Louis, MO, USA
| | - Seyed Mahdi Hassanian
- Metabolic Syndrome Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
- Basic Medical Sciences Institute, Mashhad University of Medical Sciences, Mashhad, Iran
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Liu X, Xu C, Xiao W, Yan N. Unravelling the role of NFE2L1 in stress responses and related diseases. Redox Biol 2023; 65:102819. [PMID: 37473701 PMCID: PMC10404558 DOI: 10.1016/j.redox.2023.102819] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 07/02/2023] [Accepted: 07/13/2023] [Indexed: 07/22/2023] Open
Abstract
The nuclear factor erythroid 2 (NF-E2)-related factor 1 (NFE2L1, also known as Nrf1) is a highly conserved transcription factor that belongs to the CNC-bZIP subfamily. Its significance lies in its control over redox balance, proteasome activity, and organ integrity. Stress responses encompass a series of compensatory adaptations utilized by cells and organisms to cope with extracellular or intracellular stress initiated by stressful stimuli. Recently, extensive evidence has demonstrated that NFE2L1 plays a crucial role in cellular stress adaptation by 1) responding to oxidative stress through the induction of antioxidative responses, and 2) addressing proteotoxic stress or endoplasmic reticulum (ER) stress by regulating the ubiquitin-proteasome system (UPS), unfolded protein response (UPR), and ER-associated degradation (ERAD). It is worth noting that NFE2L1 serves as a core factor in proteotoxic stress adaptation, which has been extensively studied in cancer and neurodegeneration associated with enhanced proteasomal stress. In these contexts, utilization of NFE2L1 inhibitors to attenuate proteasome "bounce-back" response holds tremendous potential for enhancing the efficacy of proteasome inhibitors. Additionally, abnormal stress adaptations of NFE2L1 and disturbances in redox and protein homeostasis contribute to the pathophysiological complications of cardiovascular diseases, inflammatory diseases, and autoimmune diseases. Therefore, a comprehensive exploration of the molecular basis of NFE2L1 and NFE2L1-mediated diseases related to stress responses would not only facilitate the identification of novel diagnostic and prognostic indicators but also enable the identification of specific therapeutic targets for NFE2L1-related diseases.
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Affiliation(s)
- Xingzhu Liu
- Queen Mary College, Nanchang University, Nanchang, Jiangxi, 330031, China; School of Biological and Biomedical Sciences, Queen Mary University of London, London, United Kingdom
| | - Chang Xu
- Queen Mary College, Nanchang University, Nanchang, Jiangxi, 330031, China; School of Biological and Biomedical Sciences, Queen Mary University of London, London, United Kingdom
| | - Wanglong Xiao
- Department of Liver Surgery, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, 200127, China
| | - Nianlong Yan
- Department of Biochemistry and Molecular Biology, School of Basic Medical Science, Nanchang University, Nanchang, Jiangxi, 330006, China.
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Liu Z, Ren C, Cai J, Yin B, Yuan J, Ding R, Ming W, Sun Y, Li Y. A Novel Aging-Related Prognostic lncRNA Signature Correlated with Immune Cell Infiltration and Response to Immunotherapy in Breast Cancer. Molecules 2023; 28:molecules28083283. [PMID: 37110517 PMCID: PMC10141963 DOI: 10.3390/molecules28083283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 03/15/2023] [Accepted: 03/21/2023] [Indexed: 04/29/2023] Open
Abstract
Breast cancer (BC) is among the most universal malignant tumors in women worldwide. Aging is a complex phenomenon, caused by a variety of factors, that plays a significant role in tumor development. Consequently, it is crucial to screen for prognostic aging-related long non-coding RNAs (lncRNAs) in BC. The BC samples from the breast-invasive carcinoma cohort were downloaded from The Cancer Genome Atlas (TCGA) database. The differential expression of aging-related lncRNAs (DEarlncRNAs) was screened by Pearson correlation analysis. Univariate Cox regression, LASSO-Cox analysis, and multivariate Cox analysis were performed to construct an aging-related lncRNA signature. The signature was validated in the GSE20685 dataset from the Gene Expression Omnibus (GEO) database. Subsequently, a nomogram was constructed to predict survival in BC patients. The accuracy of prediction performance was assessed through the time-dependent receiver operating characteristic (ROC) curves, Kaplan-Meier analysis, principal component analyses, decision curve analysis, calibration curve, and concordance index. Finally, differences in tumor mutational burden, tumor-infiltrating immune cells, and patients' response to chemotherapy and immunotherapy between the high- and low-risk score groups were explored. Analysis of the TCGA cohort revealed a six aging-related lncRNA signature consisting of MCF2L-AS1, USP30-AS1, OTUD6B-AS1, MAPT-AS1, PRR34-AS1, and DLGAP1-AS1. The time-dependent ROC curve proved the optimal predictability for prognosis in BC patients with areas under curves (AUCs) of 0.753, 0.772, and 0.722 in 1, 3, and 5 years, respectively. Patients in the low-risk group had better overall survival and significantly lower total tumor mutational burden. Meanwhile, the high-risk group had a lower proportion of tumor-killing immune cells. The low-risk group could benefit more from immunotherapy and some chemotherapeutics than the high-risk group. The aging-related lncRNA signature can provide new perspectives and methods for early BC diagnosis and therapeutic targets, especially tumor immunotherapy.
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Affiliation(s)
- Zhixin Liu
- Department of Biochemistry and Molecular Biology, Binzhou Medical University, Yantai 264003, China
- Department of Orthopedics, Qilu Hospital of Shandong University, Jinan 250012, China
| | - Chongkang Ren
- Department of Biochemistry and Molecular Biology, Binzhou Medical University, Yantai 264003, China
| | - Jinyi Cai
- Department of Biochemistry and Molecular Biology, Binzhou Medical University, Yantai 264003, China
| | - Baohui Yin
- Department of Pediatrics, Yantai Affiliated Hospital of Binzhou Medical University, Yantai 264100, China
| | - Jingjie Yuan
- Department of Biochemistry and Molecular Biology, Binzhou Medical University, Yantai 264003, China
| | - Rongjuan Ding
- Department of Biochemistry and Molecular Biology, Binzhou Medical University, Yantai 264003, China
| | - Wenzhuo Ming
- Department of Biochemistry and Molecular Biology, Binzhou Medical University, Yantai 264003, China
| | - Yunxiao Sun
- Department of Pediatrics, Yantai Affiliated Hospital of Binzhou Medical University, Yantai 264100, China
| | - Youjie Li
- Department of Biochemistry and Molecular Biology, Binzhou Medical University, Yantai 264003, China
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Wang X, Sun M, Gao Z, Yin L, Pu Y, Zhu Y, Wang X, Liu R. N-nitrosamines-mediated downregulation of LncRNA-UCA1 induces carcinogenesis of esophageal squamous by regulating the alternative splicing of FGFR2. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 855:158918. [PMID: 36169023 DOI: 10.1016/j.scitotenv.2022.158918] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 09/16/2022] [Accepted: 09/18/2022] [Indexed: 05/05/2023]
Abstract
Concerns are raised over the risk to digestive system's tumors from the N-nitrosamines (NAs) exposure in drinking water. Albeit considerable studies are conducted to explore the underlying mechanism responsible for NAs-induced esophageal squamous cell carcinoma (ESCC), the exact molecular mechanisms remain largely unknown, especially at the epigenetic regulation level. In this study, it is revealed that the urinary concentration of N-Nitrosodiethylamine is higher in high incidence area of ESCC, and the lncRNA-UCA1(UCA1) is significantly decreased in ESCC tissues. In vitro and in vivo experiments further show that UCA1 is involved in the malignant transformation of Het-1A cells and precancerous lesions of the rat esophagus induced by N-nitrosomethylbenzylamine (NMBzA). Functional gain and loss experiments verify UCA1 can affect the proliferation, migration, and invasion of ESCC cells in vitro and in vivo. Mechanically, through binding to heterogeneous nuclear ribonucleoprotein F (hnRNP F) protein, UCA1 regulates alternative splicing of fibroblast growth factor receptor 2 (FGFR2), which promotes the FGFR2IIIb isoform switching to FGFR2 IIIc isoform, and the latter activates epithelial-mesenchymal transition via PI3K-AKT signaling pathways impacting tumorigenesis. Therefore, NAs-mediated downregulation of UCA1 promotes ESCC progression through targeting hnRNP F/FGFR2/PI3k-AKT axis, which provides a new chemical carcinogenic target and establishes a previously unknown mechanism for NAs-induced ESCC.
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Affiliation(s)
- Xianghu Wang
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, China
| | - Mingjun Sun
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, China
| | - Zhikui Gao
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, China
| | - Lihong Yin
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, China
| | - Yuepu Pu
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, China
| | - Yong Zhu
- Department of Environmental Health Sciences, Yale School of Public Health, New Haven, CT 06510, USA
| | - Xiaobin Wang
- Laboratory Animal Center, Southeast University, Nanjing, China
| | - Ran Liu
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, China.
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Dai L, Liang W, Shi Z, Li X, Zhou S, Hu W, Yang Z, Wang X. Systematic characterization and biological functions of non-coding RNAs in glioblastoma. Cell Prolif 2022; 56:e13375. [PMID: 36457281 PMCID: PMC9977673 DOI: 10.1111/cpr.13375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 11/02/2022] [Accepted: 11/22/2022] [Indexed: 12/05/2022] Open
Abstract
Glioblastoma multiforme (GBM) is the most malignant and aggressive type of glioma. Non-coding RNAs (ncRNAs) are RNAs that do not encode proteins but widely exist in eukaryotic cells. The common characteristics of these RNAs are that they can all be transcribed from the genome without being translated into proteins, thus performing biological functions, particularly microRNAs (miRNAs), long non-coding RNAs (lncRNAs) and circular RNAs. Studies have found that ncRNAs are associated with the occurrence and development of GBM, and there is a complex regulatory network among ncRNAs, which can regulate cell proliferation, migration, apoptosis and differentiation, thus provide a basis for the development of highly specific diagnostic tools and therapeutic strategies in the future. The present review aimed to comprehensively describe the biogenesis, general features and functions of regulatory ncRNAs in GBM, and to interpret the potential biological functions of these ncRNAs in GBM as well as their impact on clinical diagnosis, treatment and prognosis and discusses the potential mechanisms of these RNA subtypes leading to cancer in order to contribute to the better design of personalized GBM therapies in the future.
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Affiliation(s)
- Lirui Dai
- Department of NeurosurgeryThe Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou UniversityZhengzhouChina,Institute of Neuroscience, Zhengzhou UniversityZhengzhouChina,Henan International Joint Laboratory of Glioma Metabolism and Microenvironment ResearchZhengzhouHenanChina
| | - Wulong Liang
- Department of NeurosurgeryThe Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou UniversityZhengzhouChina,Henan International Joint Laboratory of Glioma Metabolism and Microenvironment ResearchZhengzhouHenanChina
| | - Zimin Shi
- Department of NeurosurgeryThe Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou UniversityZhengzhouChina,Institute of Neuroscience, Zhengzhou UniversityZhengzhouChina,Henan International Joint Laboratory of Glioma Metabolism and Microenvironment ResearchZhengzhouHenanChina
| | - Xiang Li
- Department of NeurosurgeryThe Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou UniversityZhengzhouChina,Institute of Neuroscience, Zhengzhou UniversityZhengzhouChina,Henan International Joint Laboratory of Glioma Metabolism and Microenvironment ResearchZhengzhouHenanChina
| | - Shaolong Zhou
- Department of NeurosurgeryThe Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou UniversityZhengzhouChina,Henan International Joint Laboratory of Glioma Metabolism and Microenvironment ResearchZhengzhouHenanChina
| | - Weihua Hu
- Department of NeurosurgeryThe Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou UniversityZhengzhouChina,Henan International Joint Laboratory of Glioma Metabolism and Microenvironment ResearchZhengzhouHenanChina
| | - Zhuo Yang
- Department of NeurosurgeryThe Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou UniversityZhengzhouChina,Henan International Joint Laboratory of Glioma Metabolism and Microenvironment ResearchZhengzhouHenanChina
| | - Xinjun Wang
- Department of NeurosurgeryThe Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou UniversityZhengzhouChina,Institute of Neuroscience, Zhengzhou UniversityZhengzhouChina,Henan International Joint Laboratory of Glioma Metabolism and Microenvironment ResearchZhengzhouHenanChina
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circSMARCA5 Is an Upstream Regulator of the Expression of miR-126-3p, miR-515-5p, and Their mRNA Targets, Insulin-like Growth Factor Binding Protein 2 ( IGFBP2) and NRAS Proto-Oncogene, GTPase ( NRAS) in Glioblastoma. Int J Mol Sci 2022; 23:ijms232213676. [PMID: 36430152 PMCID: PMC9690846 DOI: 10.3390/ijms232213676] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Revised: 11/03/2022] [Accepted: 11/06/2022] [Indexed: 11/10/2022] Open
Abstract
The involvement of non-coding RNAs (ncRNAs) in glioblastoma multiforme (GBM) pathogenesis and progression has been ascertained but their cross-talk within GBM cells remains elusive. We previously demonstrated the role of circSMARCA5 as a tumor suppressor (TS) in GBM. In this paper, we explore the involvement of circSMARCA5 in the control of microRNA (miRNA) expression in GBM. By using TaqMan® low-density arrays, the expression of 748 miRNAs was assayed in U87MG overexpressing circSMARCA5. Differentially expressed (DE) miRNAs were validated through single TaqMan® assays in: (i) U87MG overexpressing circSMARCA5; (ii) four additional GBM cell lines (A172; CAS-1; SNB-19; U251MG); (iii) thirty-eight GBM biopsies; (iv) twenty biopsies of unaffected brain parenchyma (UC). Validated targets of DE miRNAs were selected from the databases TarBase and miRTarbase, and the literature; their expression was inferred from the GBM TCGA dataset. Expression was assayed in U87MG overexpressing circSMARCA5, GBM cell lines, and biopsies through real-time PCR. TS miRNAs 126-3p and 515-5p were upregulated following circSMARCA5 overexpression in U87MG and their expression was positively correlated with that of circSMARCA5 (r-values = 0.49 and 0.50, p-values = 9 × 10-5 and 7 × 10-5, respectively) in GBM biopsies. Among targets, IGFBP2 (target of miR-126-3p) and NRAS (target of miR-515-5p) mRNAs were positively correlated (r-value = 0.46, p-value = 0.00027), while their expression was negatively correlated with that of circSMARCA5 (r-values = -0.58 and -0.30, p-values = 0 and 0.019, respectively), miR-126-3p (r-value = -0.36, p-value = 0.0066), and miR-515-5p (r-value = -0.34, p-value = 0.010), respectively. Our data identified a new GBM subnetwork controlled by circSMARCA5, which regulates downstream miRNAs 126-3p and 515-5p, and their mRNA targets IGFBP2 and NRAS.
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Wei P, Jiang J, Xiao M, Zeng M, Liu X, Zhao B, Chen F. The transcript ENST00000444125 of lncRNA LINC01503 promotes cancer stem cell properties of glioblastoma cells via reducing FBXW1 mediated GLI2 degradation. Exp Cell Res 2022; 412:113009. [PMID: 34990616 DOI: 10.1016/j.yexcr.2022.113009] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 12/22/2021] [Accepted: 01/02/2022] [Indexed: 11/04/2022]
Abstract
LINC010503 is a novel oncogenic lncRNA in multiple cancers. In this study, we further explored the expression of LINC010503 transcripts and their regulations on the glioblastoma (GBM) stem cell (GSC) properties. LINC01503 transcription patterns in GBM and normal brain tissues were compared using RNA-seq data from Genotype-Tissue Expression (GTEx) and The Cancer Genome Atlas (TCGA)-GBM. GBM cell lines (U251 and U87) were used as in vitro cell models for cellular and molecular studies. The results showed that ENST00000444125 was the dominant transcript of LINC01503 in both normal and tumor tissues. Its expression was significantly elevated in the tumor group and associated with poor survival outcomes. LINC01503 had both cytoplasmic and nuclear distribution. It positively modulated the expression of multiple GSC markers, including CD133, SOX2, NESTIN, ALDH1A1, and MSI1, and tumorsphere formation in U251 and U87 cells. RNA pull-down and RIP-qPCR assay confirmed an interaction between ENST00000444125 and GLI2. ENST00000444125 positively regulated the half-life of the GLI2 protein in GBM cells. ENST00000444125 overexpression reduced GLI2 ubiquitination and partially attenuated FBXW1 overexpression induced GLI2 ubiquitination. ENST00000444125 overexpression could activate Wnt/β-catenin signaling in GBM cells. However, these activating effects were remarkedly hampered when GLI2 was knocked down. In conclusion, this study revealed that LINC01503 might have isoform-specific dysregulation in GBM. Among the two major transcripts expressed in GBM cells, ENST00000444125 might be the major functional transcript. Its upregulation might enhance the GSC properties of GBM cells via reducing FBXW1-mediated proteasomal degradation of GLI2.
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Affiliation(s)
- Pan Wei
- Department of Neurosurgery, The First People(')s Hospital of LongQuanYi District, Chengdu, Sichuan, 610100, China
| | - Jing Jiang
- Department of Gastroenterology, The First People(')s Hospital of LongQuanYi District, Chengdu, Sichuan, 610100, China
| | - Ming Xiao
- Department of Neurosurgery, The First People(')s Hospital of LongQuanYi District, Chengdu, Sichuan, 610100, China
| | - Mengfei Zeng
- Department of Neurosurgery, The First People(')s Hospital of LongQuanYi District, Chengdu, Sichuan, 610100, China
| | - Xingzhi Liu
- Department of Neurosurgery, The First People(')s Hospital of LongQuanYi District, Chengdu, Sichuan, 610100, China
| | - Baihao Zhao
- Department of Neurosurgery, The First People(')s Hospital of LongQuanYi District, Chengdu, Sichuan, 610100, China
| | - Fang Chen
- Department of Neurosurgery, The First People(')s Hospital of LongQuanYi District, Chengdu, Sichuan, 610100, China.
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Wang Z, Han Y, Li Q, Wang B, Ma J. LncRNA DLGAP1-AS1 accelerates glioblastoma cell proliferation through targeting miR-515-5p/ROCK1/NFE2L1 axis and activating Wnt signaling pathway. Brain Behav 2021; 11:e2321. [PMID: 34536977 PMCID: PMC8553332 DOI: 10.1002/brb3.2321] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 07/06/2021] [Accepted: 07/22/2021] [Indexed: 12/28/2022] Open
Abstract
INTRODUCTION Glioblastoma (GBM), the primary malignant tumor in the central nervous system, features high aggressiveness and mortality. Long noncoding RNAs (lncRNAs) can exert the crucial function in regulating various human diseases, including GBM. However, the function and mechanism of lncRNA DLGAP1 antisense RNA 1 (DLGAP1-AS1) in GBM remain still unknown. METHODS DLGAP1-AS1 expression in GBM cells was detected by RT-qPCR. Functional assays were conducted to determine GBM cell proliferation and apoptosis. RIP, RNA pull down, and luciferase reporter assay were applied for measuring the interplay of DLGAP1-AS1 with other RNAs. RESULTS DLGAP1-AS1 was distinctly upregulated in GBM cells. DLGAP1-AS1 depletion inhibited cell proliferation, but induced apoptosis. MiR-515-5p could be sponged by DLGAP1-AS1 in GBM cells and to repress cell proliferation in GBM. Further, Rho-associated coiled-coil containing protein kinase 1 (ROCK1) and Nuclear factor erythroid-2 like 1 (NFE2L1) were confirmed as the target gene of miR-515-5p. Wnt signaling pathway could be activated by DLGAP1-AS1 via regulating ROCK1 and NFE2L1 expression. Rescue assays proved that overexpression of both ROCK1 and NFE2L1 could totally reverse the inhibitory effect of silencing DLGAP1-AS1 on GBM cell proliferation. CONCLUSION LncRNA DLGAP1-AS1 accelerated cell proliferation in GBM via targeting miR-515-5p/ROCK1/NFE2L1 axis and activating Wnt signaling pathway.
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Affiliation(s)
- Zixuan Wang
- Department of Pediatric Neurosurgery, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Yipeng Han
- Department of Pediatric Neurosurgery, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Qifeng Li
- Department of Pediatric Neurosurgery, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Baocheng Wang
- Department of Pediatric Neurosurgery, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Jie Ma
- Department of Pediatric Neurosurgery, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China
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