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Luo X, Tu T, Zhong Y, Xu S, Chen X, Chen L, Yang F. ceRNA Network Analysis Shows That lncRNA CRNDE Promotes Progression of Glioblastoma Through Sponge mir-9-5p. Front Genet 2021; 12:617350. [PMID: 33767729 PMCID: PMC7985093 DOI: 10.3389/fgene.2021.617350] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Accepted: 02/08/2021] [Indexed: 12/20/2022] Open
Abstract
Glioblastoma accounts for 45.2% of central nervous system tumors. Despite the availability of multiple treatments (e.g., surgery, radiotherapy, chemotherapy, biological therapy, immunotherapy, and electric field therapy), glioblastoma has a poor prognosis, with a 5-year survival rate of approximately 5%. The pathogenesis and prognostic markers of this cancer are currently unclear. To this end, this study aimed to explore the pathogenesis of glioblastoma and identify potential prognostic markers. We used data from the GEO and TCGA databases and identified five genes (ITGA5, MMP9, PTPRN, PTX3, and STX1A) that could affect the survival rate of glioblastoma patients and that were differentially expressed between glioblastoma patients and non-tumors groups. Based on a variety of bioinformatics tools for reverse prediction of target genes associated with the prognosis of GBM, a ceRNA network of messenger RNA (STX1A, PTX3, MMP9)-microRNA (miR-9-5p)-long non-coding RNA (CRNDE) was constructed. Finally, we identified five potential therapeutic drugs (bacitracin, hecogenin, clemizole, chrysin, and gibberellic acid) that may be effective treatments for glioblastoma.
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Affiliation(s)
- Xiaobin Luo
- Department of Neurosurgery, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Tianqi Tu
- Department of Neurosurgery, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Yali Zhong
- Graduate School of Guizhou University of Traditional Chinese Medicine, Guiyang, China
| | - Shangyi Xu
- Department of Neurosurgery, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Xiangzhou Chen
- Department of Neurosurgery, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Ligang Chen
- Department of Neurosurgery, The Affiliated Hospital of Southwest Medical University, Luzhou, China.,Sichuan Clinical Research Center for Neurosurgery, The Affiliated Hospital of Southwest Medical University, Luzhou, China.,Academician (Expert) Workstation of Sichuan Province, The Affiliated Hospital of Southwest Medical University, Luzhou, China.,Laboratory of Neurological Diseases and Brain Function, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Fubing Yang
- Department of Neurosurgery, The Affiliated Hospital of Southwest Medical University, Luzhou, China.,Sichuan Clinical Research Center for Neurosurgery, The Affiliated Hospital of Southwest Medical University, Luzhou, China.,Academician (Expert) Workstation of Sichuan Province, The Affiliated Hospital of Southwest Medical University, Luzhou, China
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52
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Chaudhary R. Potential of long non-coding RNAs as a therapeutic target and molecular markers in glioblastoma pathogenesis. Heliyon 2021; 7:e06502. [PMID: 33786397 PMCID: PMC7988331 DOI: 10.1016/j.heliyon.2021.e06502] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 09/20/2020] [Accepted: 03/09/2021] [Indexed: 12/14/2022] Open
Abstract
Glioblastoma (GB) is by far the most hostile type of malignant tumor that primarily affects the brain and spine, derived from star-shaped glial cells that are astrocytes and oligodendrocytes. Despite of significant efforts in recent years in glioblastoma research, the clinical efficacy of existing medical intervention is still limited and very few potential diagnostic markers are available. Long non-coding RNAs (lncRNAs) that lacks protein-coding capabilities were previously thought to be "junk sequences" in mammalian genomes are quite indispensible epigenetic regulators that can positively or negatively regulate gene expression and nuclear architecture, with significant roles in the initiation and development of tumors. Nevertheless, the precise mechanism of these distortedly expressed lncRNAs in glioblastoma pathogenesis is not yet fully understood. Since the advent of high-throughput sequencing technologies, more and more research have elucidated that lncRNAs are one of the most promising prognostic biomarkers and therapeutic targets for glioblastoma. In this paper, I briefly outlined the existing findings of lncRNAs. And also summarizes the profiles of different lncRNAs that have been broadly classified in glioblastoma research, with emphasis on both their prognostic and therapeutic values.
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Affiliation(s)
- Rishabh Chaudhary
- Department of Pharmaceutical Sciences, Babasaheb Bhimrao Ambedkar University, Vidya Vihar, Raebareli Road, Lucknow 226025, U.P., India
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53
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Ebrahimpour A, Sarfi M, Rezatabar S, Tehrani SS. Novel insights into the interaction between long non-coding RNAs and microRNAs in glioma. Mol Cell Biochem 2021; 476:2317-2335. [PMID: 33582947 DOI: 10.1007/s11010-021-04080-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Accepted: 01/25/2021] [Indexed: 02/07/2023]
Abstract
Glioma is the most common brain tumor of the central nervous system. Long non-coding RNAs (lncRNAs) and microRNAs (miRNAs) have been identified to play a vital role in the initiation and progression of glioma, including tumor cell proliferation, survival, apoptosis, invasion, and therapy resistance. New documents emerged, which indicated that the interaction between long non-coding RNAs and miRNAs contributes to the tumorigenesis and pathogenesis of glioma. LncRNAs can act as competing for endogenous RNA (ceRNA), and molecular sponge/deregulator in regulating miRNAs. These interactions stimulate different molecular signaling pathways in glioma, including the lncRNAs/miRNAs/Wnt/β-catenin molecular signaling pathway, the lncRNAs/miRNAs/PI3K/AKT/mTOR molecular signaling pathway, the lncRNAs-miRNAs/MAPK kinase molecular signaling pathway, and the lncRNAs/miRNAs/NF-κB molecular signaling pathway. In this paper, the basic roles and molecular interactions of the lncRNAs and miRNAs pathway glioma were summarized to better understand the pathogenesis and tumorigenesis of glioma.
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Affiliation(s)
- Anahita Ebrahimpour
- Student Research Committee, Babol University of Medical Sciences, Babol, Iran
| | - Mohammad Sarfi
- Department of Clinical Biochemistry, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.,Student Scientific Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Setareh Rezatabar
- Student Research Committee, Babol University of Medical Sciences, Babol, Iran
| | - Sadra Samavarchi Tehrani
- Department of Clinical Biochemistry, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran. .,Student Scientific Research Center, Tehran University of Medical Sciences, Tehran, Iran.
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54
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Sun J, Jia H, Bao X, Wu Y, Zhu T, Li R, Zhao H. Tumor exosome promotes Th17 cell differentiation by transmitting the lncRNA CRNDE-h in colorectal cancer. Cell Death Dis 2021; 12:123. [PMID: 33495437 PMCID: PMC7835218 DOI: 10.1038/s41419-020-03376-y] [Citation(s) in RCA: 53] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 12/15/2020] [Accepted: 12/22/2020] [Indexed: 02/07/2023]
Abstract
The T helper 17 (Th17) cells in tumor microenvironment play an important role in colorectal cancer (CRC) progression. This study investigated the mechanism of Th17 cell differentiation in CRC with a focus on the role of tumor exosome-transmitted long noncoding RNA (lncRNA). Exosomes were isolated from the CRC cells and serum of CRC patients. The role and mechanism of the lncRNA CRNDE-h transmitted by CRC exosomes in Th17 cell differentiation were assessed by using various molecular biological methods. The serum exosomal CRNDE-h level was positively correlated with the proportion of Th17 cells in the tumor-infiltrating T cells in CRC patients. CRC exosomes contained abundant CRNDE-h and transmitted them to CD4+ T cells to increase the Th17 cell proportion, RORγt expression, and IL-17 promoter activity. The underlying mechanism is that, CRNDE-h bound to the PPXY motif of RORγt and impeded the ubiquitination and degradation of RORγt by inhibiting its binding with the E3 ubiquitin ligase Itch. The in vivo experiments confirmed that the targeted silence of CRNDE-h in CD4+ T cells attenuated the CRC tumor growth in mice. The present findings demonstrated that the tumor exosome transmitted CRNDE-h promoted Th17 cell differentiation by inhibiting the Itch-mediated ubiquitination and degradation of RORγt in CRC, expanding our understanding of Th17 cell differentiation in CRC.
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Affiliation(s)
- Junfeng Sun
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Haowei Jia
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Xingqi Bao
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Yue Wu
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Tianyu Zhu
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Ruixin Li
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Hongchao Zhao
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, China.
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55
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Katsushima K, Jallo G, Eberhart CG, Perera RJ. Long non-coding RNAs in brain tumors. NAR Cancer 2021; 3:zcaa041. [PMID: 34316694 PMCID: PMC8210177 DOI: 10.1093/narcan/zcaa041] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 11/09/2020] [Accepted: 12/15/2020] [Indexed: 02/07/2023] Open
Abstract
Long non-coding RNAs (lncRNAs) have been found to be central players in the epigenetic, transcriptional and post-transcriptional regulation of gene expression. There is an accumulation of evidence on newly discovered lncRNAs, their molecular interactions and their roles in the development and progression of human brain tumors. LncRNAs can have either tumor suppressive or oncogenic functions in different brain cancers, making them attractive therapeutic targets and biomarkers for personalized therapy and precision diagnostics. Here, we summarize the current state of knowledge of the lncRNAs that have been implicated in brain cancer pathogenesis, particularly in gliomas and medulloblastomas. We discuss their epigenetic regulation as well as the prospects of using lncRNAs as diagnostic biomarkers and therapeutic targets in patients with brain tumors.
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Affiliation(s)
- Keisuke Katsushima
- Department of Oncology, Johns Hopkins University School of Medicine, 1650 Orleans St., Baltimore, MD 21231, USA
| | - George Jallo
- Johns Hopkins All Children's Hospital, 600 5th St. South, St Petersburg, FL 33701, USA
| | - Charles G Eberhart
- Department of Oncology, Johns Hopkins University School of Medicine, 1650 Orleans St., Baltimore, MD 21231, USA
| | - Ranjan J Perera
- Department of Oncology, Johns Hopkins University School of Medicine, 1650 Orleans St., Baltimore, MD 21231, USA
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56
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Aftabi Y, Ansarin K, Shanehbandi D, Khalili M, Seyedrezazadeh E, Rahbarnia L, Asadi M, Amiri-Sadeghan A, Zafari V, Eyvazi S, Bakhtiyari N, Zarredar H. Long non-coding RNAs as potential biomarkers in the prognosis and diagnosis of lung cancer: A review and target analysis. IUBMB Life 2020; 73:307-327. [PMID: 33369006 DOI: 10.1002/iub.2430] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 11/26/2020] [Accepted: 12/04/2020] [Indexed: 12/17/2022]
Abstract
Long non-coding RNAs (lncRNA) have been emerged as a novel class of molecular regulators in cancer. They are dysregulated in many types of cancer; however, there is not enough knowledge available on their expression and functional profiles. Lung cancer is the leading cause of the cancer deaths worldwide. Generally, lncRNAs may be associated with lung tumor pathogenesis and they may act as biomarkers for the cancer prognosis and diagnosis. Compared to other invasive prognostic and diagnostic methods, detection of lncRNAs might be a user-friendly and noninvasive method. In this review article, we selected 27 tumor-associated lncRNAs by literature reviewing to further discussing in detail for using as diagnostic and prognostic biomarkers in lung cancer. Also, in an in silico target analysis, the "Experimentally supported functional regulation" approach of the LncTarD web tool was used to identifying the target genes and regulatory mechanisms of the selected lncRNAs. The reports on diagnostic and prognostic potential of all selected lncRNAs were discussed. However, the target genes and regulatory mechanisms of the 22 lncRNAs were identified by in silico analysis and we found the pathways that are controlled by each target group of lncRNAs. They use epigenetic mechanisms, ceRNA mechanisms, protein interaction and sponge mechanism. Also, 10, 23, 5, and 28 target genes for each of these mechanisms were identified, respectively. Finally, each group of target genes controls 50, 12, 7, and 2 molecular pathways, respectively. In conclusion, LncRNAs could be used as biomarkers in lung cancer due to their roles in control of several signaling pathways related to lung tumors. Also, it seems that lncRNAs, which use epigenetic mechanisms for modulating a large number of pathways, could be considered as important subjects for lung cancer-related diagnostic and prognostic biomarkers.
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Affiliation(s)
- Younes Aftabi
- Tuberculosis and Lung Diseases Research Center, Tabriz University of Medical Science, Tabriz, Iran
| | - Khalil Ansarin
- Tuberculosis and Lung Diseases Research Center, Tabriz University of Medical Science, Tabriz, Iran
| | - Dariush Shanehbandi
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Majid Khalili
- Tuberculosis and Lung Diseases Research Center, Tabriz University of Medical Science, Tabriz, Iran.,Rahat Breathe and Sleep Research Center, Tabriz University of Medical Science, Tabriz, Iran
| | - Ensiyeh Seyedrezazadeh
- Tuberculosis and Lung Diseases Research Center, Tabriz University of Medical Science, Tabriz, Iran
| | - Leila Rahbarnia
- Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Milad Asadi
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Amir Amiri-Sadeghan
- Tuberculosis and Lung Diseases Research Center, Tabriz University of Medical Science, Tabriz, Iran
| | - Venus Zafari
- Tuberculosis and Lung Diseases Research Center, Tabriz University of Medical Science, Tabriz, Iran
| | - Shirin Eyvazi
- Tuberculosis and Lung Diseases Research Center, Tabriz University of Medical Science, Tabriz, Iran
| | - Nasim Bakhtiyari
- Tuberculosis and Lung Diseases Research Center, Tabriz University of Medical Science, Tabriz, Iran
| | - Habib Zarredar
- Tuberculosis and Lung Diseases Research Center, Tabriz University of Medical Science, Tabriz, Iran
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57
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Ding C, Yi X, Xu J, Huang Z, Bu X, Wang D, Ge H, Zhang G, Gu J, Kang D, Wu X. Long Non-Coding RNA MEG3 Modifies Cell-Cycle, Migration, Invasion, and Proliferation Through AKAP12 by Sponging miR-29c in Meningioma Cells. Front Oncol 2020; 10:537763. [PMID: 33251130 PMCID: PMC7672212 DOI: 10.3389/fonc.2020.537763] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 09/01/2020] [Indexed: 12/11/2022] Open
Abstract
Meningioma (MEN) is a common central nervous system disease. Accumulating evidence indicated that long non-coding RNA maternally expressed gene 3 (MEG3) participated in the progression of MEN. However, the potential mechanisms of MEG3 in altering the aggressive phenotypes of MEN need further exploration. Levels of MEG3, microRNA (miR)-29c, and A-kinase anchor protein 12 (AKAP12) were determined using quantitative real-time Polymerase Chain Reaction (qRT-PCR) assay. Dual-luciferase reporter and RNA immunoprecipitation (RIP) assays were performed to verify the relationship between miR-29c and MEG3 or AKAP12. The protein level of AKAP12 was detected by western blot. Moreover, cell-cycle arrest, migration, invasion, and proliferation were assessed by flow cytometry, wound healing, transwell assays, and CCK-8 assay, respectively. Levels of MEG3 and AKAP12 were downregulated, while miR-29c was effectively increased in MEN tissues and cell line. Mechanically, MEG3 was a sponge of miR-29c to regulate the expression of AKAP12. Functionally, increase of MEG3 diminished cell-cycle, migration, invasion, and proliferation in MEN cells, and reintroduction of miR-29c could eliminate these effects. In addition, AKAP12 depletion overturned the inhibitory effects of miR-29c absence on cell-cycle, migration, invasion, and proliferation in vitro. Also, AKAP12 was co-regulated by MEG3/miR-29c axis. MEG3 mediated the aggressive behaviors of MEN cells via miR-29c/AKAP12 axis, supporting that MEG3 served as a promising biomarker for the diagnosis and treatment of human MEN.
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Affiliation(s)
- Chenyu Ding
- Department of Neurosurgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Xuehan Yi
- Department of Otolaryngology Head and Neck Surgery, Fujian Medical University Union Hospital, Fuzhou, China
| | - Jiaheng Xu
- Department of Neurosurgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Zhenhua Huang
- Department of Neurosurgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Xingyao Bu
- Department of Neurosurgery, Zhengzhou University People's Hospital, Henan Provincial People's Hospital, Zhengzhou, China
| | - Desheng Wang
- Department of Otolaryngology Head and Neck Surgery, Fujian Medical University Union Hospital, Fuzhou, China
| | - Hongliang Ge
- Department of Neurosurgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Gaoqi Zhang
- Department of Neurosurgery, Zhengzhou University People's Hospital, Henan Provincial People's Hospital, Zhengzhou, China
| | - Jianjun Gu
- Department of Neurosurgery, Zhengzhou University People's Hospital, Henan Provincial People's Hospital, Zhengzhou, China
| | - Dezhi Kang
- Department of Neurosurgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Xiyue Wu
- Department of Neurosurgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
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58
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Oncogenic role of lncRNA CRNDE in acute promyelocytic leukemia and NPM1-mutant acute myeloid leukemia. Cell Death Discov 2020; 6:121. [PMID: 33298855 PMCID: PMC7658230 DOI: 10.1038/s41420-020-00359-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Accepted: 10/13/2020] [Indexed: 12/22/2022] Open
Abstract
The PML/RARα fusion protein acts in concert with cooperative genetic events in the development of acute promyelocytic leukemia (APL). However, oncogenic long non-coding RNAs (lncRNAs) cooperating with PML/RARα remain under-explored. Here, we first identified a set of pathogenesis-related lncRNAs, aberrantly expressed in APL using RNA-seq data from a large cohort of acute myeloid leukemia (AML) patients and normal counterparts. Among the pathogenesis-related lncRNAs, one of the evolutionarily conservative lncRNAs CRNDE (Colorectal Neoplasia Differentially Expressed) drew our attention. We found that CRNDE was highly expressed in the disease state but not in the preleukemic stage of APL, suggesting that CRNDE might be a secondary event coordinating with PML/RARα to promote APL development. Functional analysis showed that CRNDE knockdown induced differentiation and inhibited proliferation of APL cells, and prolonged survival of APL mice. Further mechanistic studies showed that CRNDE elicited its oncogenic effects through binding the miR-181 family and thereby regulating NOTCH2. Finally, we found that high CRNDE expression was also significantly correlated with NPM1 mutations and contributed to the differentiation block in NPM1-mutant AML. Collectively, our findings shed light on the importance of oncogenic lncRNAs in the development of AML and provide a promising target for AML therapy.
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59
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Immune-Related lncRNA Correlated with Transcription Factors Provide Strong Prognostic Prediction in Gliomas. JOURNAL OF ONCOLOGY 2020; 2020:2319194. [PMID: 33178271 PMCID: PMC7647786 DOI: 10.1155/2020/2319194] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Accepted: 10/07/2020] [Indexed: 12/27/2022]
Abstract
Glioma is the most common and deadly tumor in central nervous system. According to previous studies, long noncoding RNAs (lncRNA) and transcription factors were significant factors of gliomas progression by regulating gliomas immune microenvironment. In our study, we built two independent cohorts from CGGA and TCGA. And we extracted 253 immune-related lncRNA correlated with prognosis. After LASSO analysis and multivariate Cox regression analysis, 8 immune-related lncRNA were used to construct classifier. The effectiveness of classifier was confirmed in both CGGA (AUC = 0.869) and TCGA (AUC = 0.902) cohorts. The correlation between transcription factors and immune-related lncRNA was calculated by WCGNA. Eventually, we built a network between 8 lncRNA and transcription factors. The function of core immune-related lncRNA in gliomas immune microenvironment was also investigated by CIBERTSORT. Our research provided a strong classifier of immune-related lncRNA to predict gliomas patient outcome. We also found the correlation between core immune-related lncRNA and transcription factors. These results may stimulate new strategy of immunotherapy in gliomas patients.
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60
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Tamtaji OR, Behnam M, Pourattar MA, Hamblin MR, Mahjoubin-Tehran M, Mirzaei H, Asemi Z. PIWI-interacting RNAs and PIWI proteins in glioma: molecular pathogenesis and role as biomarkers. Cell Commun Signal 2020; 18:168. [PMID: 33109195 PMCID: PMC7590611 DOI: 10.1186/s12964-020-00657-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Accepted: 09/06/2020] [Indexed: 12/12/2022] Open
Abstract
Glioma is the most common primary brain tumor, and is a major health problem throughout the world. Today, researchers have discovered many risk factors that are associated with the initiation and progression of gliomas. Studies have shown that PIWI-interacting RNAs (piRNAs) and PIWI proteins are involved in tumorigenesis by epigenetic mechanisms. Hence, it seems that piRNAs and PIWI proteins may be potential prognostic, diagnostic or therapeutic biomarkers in the treatment of glioma. Previous studies have demonstrated a relationship between piRNAs and PIWI proteins and some of the molecular and cellular pathways in glioma. Here, we summarize recent evidence and evaluate the molecular mechanisms by which piRNAs and PIWI proteins are involved in glioma. Video abstract
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Affiliation(s)
- Omid Reza Tamtaji
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran
| | | | | | - Michael R Hamblin
- Laser Research Centre, Faculty of Health Science, University of Johannesburg, Doornfontein, 2028, South Africa
| | - Maryam Mahjoubin-Tehran
- Student Research Committee, Mashhad University of Medical Sciences, Mashhad, Iran.,Department of Medical Biotechnology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hamed Mirzaei
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran.
| | - Zatollah Asemi
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran.
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61
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Profiling pro-neural to mesenchymal transition identifies a lncRNA signature in glioma. J Transl Med 2020; 18:378. [PMID: 33028341 PMCID: PMC7539462 DOI: 10.1186/s12967-020-02552-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 09/27/2020] [Indexed: 12/24/2022] Open
Abstract
Background Molecular classification has laid the framework for exploring glioma biology and treatment strategies. Pro-neural to mesenchymal transition (PMT) of glioma is known to be associated with aggressive phenotypes, unfavorable prognosis, and treatment resistance. Recent studies have highlighted that long non-coding RNAs (lncRNAs) are key mediators in cancer mesenchymal transition. However, the relationship between lncRNAs and PMT in glioma has not been systematically investigated. Methods Gene expression profiles from The Cancer Genome Atlas (TCGA), the Chinese Glioma Genome Atlas (CGGA), GSE16011, and Rembrandt with available clinical and genomic information were used for analyses. Bioinformatics methods such as weighted gene co-expression network analysis (WGCNA), gene set enrichment analysis (GSEA), Cox analysis, and least absolute shrinkage and selection operator (LASSO) analysis were performed. Results According to PMT scores, we confirmed that PMT status was positively associated with risky behaviors and poor prognosis in glioma. The 149 PMT-related lncRNAs were identified by WGCNA analysis, among which 10 (LINC01057, TP73-AS1, AP000695.4, LINC01503, CRNDE, OSMR-AS1, SNHG18, AC145343.2, RP11-25K21.6, RP11-38L15.2) with significant prognostic value were further screened to construct a PMT-related lncRNA risk signature, which could divide cases into two groups with distinct prognoses. Multivariate Cox regression analyses indicated that the signature was an independent prognostic factor for high-grade glioma. High-risk cases were more likely to be classified as the mesenchymal subtype, which confers enhanced immunosuppressive status by recruiting macrophages, neutrophils, and regulatory T cells. Moreover, six lncRNAs of the signature could act as competing endogenous RNAs to promote PMT in glioblastoma. Conclusions We profiled PMT status in glioma and established a PMT-related 10-lncRNA signature for glioma that could independently predict glioma survival and trigger PMT, which enhanced immunosuppression.
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62
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Yang Y, Liu X, Zheng J, Xue Y, Liu L, Ma J, Wang P, Yang C, Wang D, Shao L, Ruan X, Liu Y. Interaction of BACH2 with FUS promotes malignant progression of glioma cells via the TSLNC8-miR-10b-5p-WWC3 pathway. Mol Oncol 2020; 14:2936-2959. [PMID: 32892482 PMCID: PMC7607167 DOI: 10.1002/1878-0261.12795] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 07/17/2020] [Accepted: 09/01/2020] [Indexed: 01/08/2023] Open
Abstract
Glioma, a common malignant tumour of the human central nervous system, has poor prognosis and limited treatment options. Dissecting the biological mechanisms underlying glioma pathogenesis can facilitate the development of better therapies. Here, we investigated the endogenous expression of BTB and CNC homolog 2 (BACH2), fused in sarcoma (FUS), TSLNC8 and microRNA (miR)‐10b‐5p in glioma cells and tissues. We studied the interaction between BACH2 and FUS and its contribution to glioma progression. We demonstrated that the interaction between BACH2 and FUS promoted glioma progression via transcriptional inhibition of TSLNC8. Overexpression of TSLNC8 restrained glioma progression by suppressing miR‐10b‐5p. Binding of TSLNC8 to miR‐10b‐5p attenuated the suppression of WWC family member 3 (WWC3) by miR‐10b‐5p and activated the Hippo signalling pathway. Growth of subcutaneous xenografts could be inhibited by knockdown of BACH2 or FUS, by overexpressing TSLNC8 or a combination of the three, also leading to a prolonged survival in nude mice. Our results indicate that the BACH2 and FUS/TSLNC8/miR‐10b‐5p/WWC3 axis is responsible for glioma development and could serve as a potential target for the development of new glioma therapies.
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Affiliation(s)
- Yang Yang
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, China.,Liaoning Clinical Medical Research Center in Nervous System Disease, Shenyang, China.,Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang, China
| | - Xiaobai Liu
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, China.,Liaoning Clinical Medical Research Center in Nervous System Disease, Shenyang, China.,Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang, China
| | - Jian Zheng
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, China.,Liaoning Clinical Medical Research Center in Nervous System Disease, Shenyang, China.,Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang, China
| | - Yixue Xue
- Department of Neurobiology, School of Life Sciences, China Medical University, Shenyang, China.,Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University, Shenyang, China.,Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang, China
| | - Libo Liu
- Department of Neurobiology, School of Life Sciences, China Medical University, Shenyang, China.,Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University, Shenyang, China.,Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang, China
| | - Jun Ma
- Department of Neurobiology, School of Life Sciences, China Medical University, Shenyang, China.,Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University, Shenyang, China.,Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang, China
| | - Ping Wang
- Department of Neurobiology, School of Life Sciences, China Medical University, Shenyang, China.,Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University, Shenyang, China.,Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang, China
| | - Chunqing Yang
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, China.,Liaoning Clinical Medical Research Center in Nervous System Disease, Shenyang, China.,Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang, China
| | - Di Wang
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, China.,Liaoning Clinical Medical Research Center in Nervous System Disease, Shenyang, China.,Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang, China
| | - Lianqi Shao
- Department of Neurobiology, School of Life Sciences, China Medical University, Shenyang, China.,Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University, Shenyang, China.,Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang, China
| | - Xuelei Ruan
- Department of Neurobiology, School of Life Sciences, China Medical University, Shenyang, China.,Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University, Shenyang, China.,Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang, China
| | - Yunhui Liu
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, China.,Liaoning Clinical Medical Research Center in Nervous System Disease, Shenyang, China.,Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang, China
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The long non-coding RNA CRNDE regulates growth of multiple myeloma cells via an effect on IL6 signalling. Leukemia 2020; 35:1710-1721. [PMID: 32879426 DOI: 10.1038/s41375-020-01034-y] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Revised: 08/05/2020] [Accepted: 08/17/2020] [Indexed: 02/06/2023]
Abstract
Multiple myeloma (MM) is a currently incurable malignancy of antibody-secreting plasma cells. Long non-coding RNAs (lncRNAs) have been recognised as an important class of regulatory molecules which are increasingly implicated in tumorigenesis. While recent studies have demonstrated changes in expression of lncRNAs in MM, the functional significance and molecular pathways downstream of these changes remain poorly characterised. In this study, we have performed CRISPR-mediated deletion of the locus encoding the lncRNA Colorectal Neoplasia Differentially Expressed (CRNDE), a known oncogenic lncRNA that is overexpressed in plasma cells of MM patients and is a marker of poor prognosis. We found that CRISPR-mediated deletion of the CRNDE locus in MM cells decreases proliferation and adhesion properties, increases sensitivity to Dexamethasone and reduces tumour growth in an in vivo xenograft model. Transcriptomic profiling in CRNDE-deleted MM cells demonstrated that CRNDE activates expression of a number of genes previously implicated in the aetiology of MM, including IL6R. We further demonstrate that deletion of the CRNDE locus diminishes IL6 signalling and proliferative responses in MM cells. Altogether this study reveals the IL6 signalling pathway as a novel mechanism by which CRNDE impacts upon MM cell growth and disease progression.
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Fu CH, Lai FF, Chen S, Yan CX, Zhang BH, Fang CZ, Wang GH. Silencing of long non-coding RNA CRNDE promotes autophagy and alleviates neonatal hypoxic-ischemic brain damage in rats. Mol Cell Biochem 2020; 472:1-8. [PMID: 32632609 DOI: 10.1007/s11010-020-03754-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Accepted: 05/16/2020] [Indexed: 12/14/2022]
Abstract
Hypoxic-ischemic (HI) brain damage (HIBD) leads to high neonatal mortality and severe neurologic morbidity. Autophagy is involved in the pathogenesis of HIBD. This study aims to investigate the effect of long non-coding RNA colorectal neoplasia differentially expressed (CRNDE) on HIBD and to validate whether autophagy is involved in this process. A HIBD model in rat pups and a HI model in rat primary cerebrocortical neurons were established. Autophagy was evaluated by western blot. The HIBD in rats was evaluated by hematoxylin and eosin staining, TUNEL staining, triphenyl tetrazolium chloride staining, and morris water maze test. The HI injury in vitro was evaluated by determining cell viability and apoptosis. The results showed that CRNDE expression was time-dependently increased in the brain after HIBD. Administration with CRNDE shRNA-expressing lentiviruses alleviated pathological injury and apoptosis in rat hippocampus, decreased infarct volume, and improved behavior performance of rats subjected to HIBD. Furthermore, CRNDE silencing promoted cell viability and inhibited cell apoptosis in neurons exposed to HI. Moreover, CRNDE silencing promoted autophagy and the autophagy inhibitor 3-methyladenine counteracted the neuroprotective effect of CRNDE silencing on HI-induced neuronal injury both in vivo and in vitro. Collectively, CRNDE silencing alleviates HIBD, at least partially, through promoting autophagy.
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Affiliation(s)
- Chun-Hua Fu
- Department of Neonatology, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China
| | - Fang-Fang Lai
- Department of Pediatric, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China
| | - Sai Chen
- Department of Neonatology, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China
| | - Cai-Xia Yan
- Department of Neonatology, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China
| | - Bing-Hong Zhang
- Department of Neonatology, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China
| | - Cheng-Zhi Fang
- Department of Neonatology, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China
| | - Gao-Hua Wang
- Department of Psychiatry, Renmin Hospital of Wuhan University, No.99 Zhangzhidong Road, Wuchang District, Wuhan, 430060, Hubei, China.
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65
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Pang J, Ye L, Zhao D, Zhao D, Chen Q. Circular RNA PRMT5 confers cisplatin-resistance via miR-4458/REV3L axis in non-small-cell lung cancer. Cell Biol Int 2020; 44:2416-2426. [PMID: 32808744 DOI: 10.1002/cbin.11449] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 08/12/2020] [Accepted: 08/16/2020] [Indexed: 12/24/2022]
Abstract
Multifactor and multistep processes were elucidated to participate in the progression of non-small-cell lung cancer (NSCLC). Circular RNA 0031250 (circ-PRMT5) was a vital factor in NSCLC. However, the role of circ-PRMT5 in cisplatin (DDP)-resistance needed to be further highlighted. Expression profiles of circ-PRMT5, microRNA (miR)-4458, and EV3-like DNA-directed polymerase ζ catalytic subunit (REV3L) were detected using quantitative real-time polymerase chain reaction. 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide, flow cytometry, and transwell assays were performed to determine the half-maximal inhibitory concentration of DDP, cell viability, apoptosis, and invasion in vitro. Besides, the protein levels of REV3L and indicated proteins were examined by adopting western blot. Dual-luciferase reporter assay was performed to analyze the interaction between miR-4458 and circ-PRMT5 or REV3L. The functional role of circ-PRMT5 was explored using a xenograft tumor model. Levels of circ-PRMT5 and REV3L were markedly increased, while miR-4458 was downregulated in resistant tissues and cells. Knockdown of circ-PRMT5 enhanced cell apoptosis, DDP-sensitivity, and declined metastasis in NSCLC with DDP resistance. Besides, miR-4458 inhibition or REV3L upregulation could revert circ-PRMT5 absence-mediated effect on DDP-sensitivity in vitro. Mechanically, circ-PRMT5 was a sponge of miR-4458 to regulate REV3L. Importantly, circ-PRMT5 silencing could interact with DDP treatment expedite the decrease of tumor growth in vivo. Circ-PRMT5 promoted DDP resistance via REV3L by sponging miR-4458 in NSCLC, thus providing a novel therapeutic strategy for patients with NSCLC.
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Affiliation(s)
- Jun Pang
- Department of Geriatrics, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China.,Department of Anesthesiology, The Second Clinical College of North Sichuan Medical College, Nanchong Central Hospital, Nanchong, Sichuan, China.,Institute of Anorectal Diseases, North Sichuan Medical College, Nanchong, Sichuan, China
| | - Liwen Ye
- Department of Geriatrics, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Dan Zhao
- Medical Examination Center, The Second Clinical College of North Sichuan Medical College, Nanchong Central Hospital, Nanchong, Sichuan, China
| | - Ding Zhao
- Emergency Department, The Second Clinical College of North Sichuan Medical College, Nanchong Central Hospital, Nanchong, Sichuan, China
| | - Qingwei Chen
- Department of Geriatrics, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
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66
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Zhou Q, Sun Y. Circular RNA cMras Suppresses the Progression of Lung Adenocarcinoma Through ABHD5/ ATGL Axis Using NF-κB Signaling Pathway. Cancer Biother Radiopharm 2020. [PMID: 32822232 DOI: 10.1089/cbr.2020.3709] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Background: Lung adenocarcinoma (LAC) is a common malignancy worldwide. Emerging findings indicated that circular RNAs possess complex capacities of gene modulation in tumorigenesis and metastasis. Nevertheless, the role of circular RNA in LAC is still largely unknown. Methods: The level of circular RNA cMras (circ_cMras), alpha-beta hydrolase domain 5 (ABHD5), and adipose triglyceride lipase (ATGL) was determined by quantitative real-time polymerase chain reaction assay. Protein levels of ABHD5, ATGL, p53, p65, and phospho-p65 (p-p65) were examined by western blot. 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) was used to detect cell proliferation in vitro. Cell apoptosis was estimated using flow cytometry. Transwell assay was used to measure cell migration and invasion in A549 and HCC827 cells. Finally, the role of circ_cMras was explored using xenograft tumor model. Results: Low levels of circ_cMras, ABHD5, and ATGL were observed in LAC tissues and cells. Upregulation of circ_cMras could hamper tumor aggression in vitro and in vivo, exhibiting as the inhibition of cell proliferation, migration, invasion, and promotion of cell apoptosis, as well as the inhibition on tumor growth in vivo. Moreover, ABHD5 deletion could overturn the effects of circ_cMras overexpression on cell behaviors in LAC cells. Furthermore, the inhibiting effects of ABHD5 on cell aggression were reversed by ATGL deficiency in vitro. Mechanically, circ_cMras/ABHD5/ATGL axis exerted its role through NF-κB signaling pathway in LAC cells. Conclusion: Circ_cMras exerted its function through ABHD5/ATGL axis using NF-κB signaling pathway in LAC, which might provide a novel insight for the diagnosis and prognosis of LAC.
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Affiliation(s)
- Qinfei Zhou
- Department of Comprehensive Medical Oncology, Cancer Hospital of the University of Chinese Academy of Sciences, Hangzhou, China
| | - Yan Sun
- Department of Comprehensive Medical Oncology, Cancer Hospital of the University of Chinese Academy of Sciences, Hangzhou, China
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67
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Zhu Y, Sun A, Meng T, Li H. RETRACTED: Protective role of long noncoding RNA CRNDE in myocardial tissues from injury caused by sepsis through the microRNA-29a/SIRT1 axis. Life Sci 2020; 255:117849. [PMID: 32473249 DOI: 10.1016/j.lfs.2020.117849] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 05/19/2020] [Accepted: 05/25/2020] [Indexed: 12/17/2022]
Abstract
This article has been retracted: please see Elsevier Policy on Article Withdrawal (https://www.elsevier.com/about/our-business/policies/article-withdrawal). This article has been retracted at the request of Editor-in-Chief and the corresponding author. The corresponding author confessed that the paper was outsourced to a third-party company, who could not guarantee the integrity of the data.
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Affiliation(s)
- Yan Zhu
- Department of ICU, Zaozhuang Municipal Hospital, Zaozhuang 277102, Shandong, PR China
| | - Aichen Sun
- Department of Orthopaedics, Zaozhuang Municipal Hospital, Zaozhuang 277102, Shandong, PR China.
| | - Taocheng Meng
- Department of ICU, Zaozhuang Municipal Hospital, Zaozhuang 277102, Shandong, PR China
| | - Haolan Li
- Department of Infectious Diseases, Zaozhuang Municipal Hospital, Zaozhuang 277102, Shandong, PR China
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68
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Zhu J, Wang H, Huang YQ, Song W, Li YF, Wang WJ, Ding ZL. Comprehensive analysis of a long non-coding RNA-associated competing endogenous RNA network in glioma. Oncol Lett 2020; 20:63. [PMID: 32863896 PMCID: PMC7436175 DOI: 10.3892/ol.2020.11924] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Accepted: 04/09/2020] [Indexed: 12/16/2022] Open
Abstract
Long non-coding RNAs (lncRNAs) can act as competing endogenous RNAs (ceRNAs), interacting with microRNAs (miRNAs) and playing an important role in tumor progression. However, the role of lncRNA-mediated ceRNAs in glioma remains largely unknown. The present study aimed to identify novel lncRNAs and their associated function in glioma. RNA sequencing and corresponding clinical data from patients with glioma were obtained from The Cancer Genome Atlas. A total of 598 glioma tissues and 5 normal brain tissues were analyzed in the present study. The differentially expressed (DE) lncRNAs, mRNAs and miRNAs were identified using R packages and were used to construct a ceRNA network. Gene Ontology and Kyoto Encyclopedia of Genes and Genomes analyses were performed to investigate the biological functions of the DEmRNAs. Kaplan-Meier curve analysis was performed to investigate the association between DElncRNA expression and patient outcome. A total of 752 DElncRNAs, 2,079 DEmRNAs and 113 DEmiRNAs were identified between glioma and normal tissues. A lncRNA-miRNA-mRNA ceRNA network consisting of 61 lncRNAs, 12 miRNAs and 92 mRNAs was constructed. Survival analysis indicated that 36 DElncRNAs, 72 DEmRNAs and 3 DEmiRNAs were associated with overall survival in patients with glioma. The present study identified novel lncRNAs associated with survival prognosis and may facilitate further investigation of lncRNA-mediated ceRNA regulatory mechanisms in glioma.
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Affiliation(s)
- Jie Zhu
- Department of Oncology, Changzhou Traditional Chinese Medical Hospital, Changzhou, Jiangsu 213003, P.R. China
| | - Han Wang
- Department of Oncology, Jining Cancer Hospital, Jining, Shandong 272000, P.R. China
| | - Yue-Qing Huang
- Department of General Practice, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, Jiangsu 215001, P.R. China
| | - Wei Song
- Department of Intervention and Vascular Surgery, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, Jiangsu 215001, P.R. China
| | - Yi-Fan Li
- Department of Oncology, Binzhou People's Hospital, Binzhou, Shandong 256600, P.R. China
| | - Wen-Jie Wang
- Department of Radio-Oncology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, Jiangsu 215001, P.R. China
| | - Zhi-Liang Ding
- Department of Neurosurgery, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, Jiangsu 215001, P.R. China
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69
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Zottel A, Šamec N, Videtič Paska A, Jovčevska I. Coding of Glioblastoma Progression and Therapy Resistance through Long Noncoding RNAs. Cancers (Basel) 2020; 12:cancers12071842. [PMID: 32650527 PMCID: PMC7409010 DOI: 10.3390/cancers12071842] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 07/03/2020] [Accepted: 07/06/2020] [Indexed: 12/19/2022] Open
Abstract
Glioblastoma is the most aggressive and lethal primary brain malignancy, with an average patient survival from diagnosis of 14 months. Glioblastoma also usually progresses as a more invasive phenotype after initial treatment. A major step forward in our understanding of the nature of glioblastoma was achieved with large-scale expression analysis. However, due to genomic complexity and heterogeneity, transcriptomics alone is not enough to define the glioblastoma “fingerprint”, so epigenetic mechanisms are being examined, including the noncoding genome. On the basis of their tissue specificity, long noncoding RNAs (lncRNAs) are being explored as new diagnostic and therapeutic targets. In addition, growing evidence indicates that lncRNAs have various roles in resistance to glioblastoma therapies (e.g., MALAT1, H19) and in glioblastoma progression (e.g., CRNDE, HOTAIRM1, ASLNC22381, ASLNC20819). Investigations have also focused on the prognostic value of lncRNAs, as well as the definition of the molecular signatures of glioma, to provide more precise tumor classification. This review discusses the potential that lncRNAs hold for the development of novel diagnostic and, hopefully, therapeutic targets that can contribute to prolonged survival and improved quality of life for patients with glioblastoma.
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70
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Han M, Wang S, Fritah S, Wang X, Zhou W, Yang N, Ni S, Huang B, Chen A, Li G, Miletic H, Thorsen F, Bjerkvig R, Li X, Wang J. Interfering with long non-coding RNA MIR22HG processing inhibits glioblastoma progression through suppression of Wnt/β-catenin signalling. Brain 2020; 143:512-530. [PMID: 31891366 PMCID: PMC7009478 DOI: 10.1093/brain/awz406] [Citation(s) in RCA: 96] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Revised: 10/05/2019] [Accepted: 11/09/2019] [Indexed: 01/20/2023] Open
Abstract
Long non-coding RNAs play critical roles in tumour progression. Through analysis of publicly available genomic datasets, we found that MIR22HG, the host gene of microRNAs miR-22-3p and miR-22-5p, is ranked among the most dysregulated long non-coding RNAs in glioblastoma. The main purpose of this work was to determine the impact of MIR22HG on glioblastoma growth and invasion and to elucidate its mechanistic function. The MIR22HG/miR-22 axis was highly expressed in glioblastoma as well as in glioma stem-like cells compared to normal neural stem cells. In glioblastoma, increased expression of MIR22HG is associated with poor prognosis. Through a number of functional studies, we show that MIR22HG silencing inhibits the Wnt/β-catenin signalling pathway through loss of miR-22-3p and -5p. This leads to attenuated cell proliferation, invasion and in vivo tumour growth. We further show that two genes, SFRP2 and PCDH15, are direct targets of miR-22-3p and -5p and inhibit Wnt signalling in glioblastoma. Finally, based on the 3D structure of the pre-miR-22, we identified a specific small-molecule inhibitor, AC1L6JTK, that inhibits the enzyme Dicer to block processing of pre-miR-22 into mature miR-22. AC1L6JTK treatment caused an inhibition of tumour growth in vivo. Our findings show that MIR22HG is a critical inducer of the Wnt/β-catenin signalling pathway, and that its targeting may represent a novel therapeutic strategy in glioblastoma patients.
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Affiliation(s)
- Mingzhi Han
- Department of Neurosurgery, Qilu Hospital of Shandong University and Institute of Brain and Brain-Inspired Science, Shandong University; Shandong Key Laboratory of Brain Function Remodeling, Jinan, 250012, China.,NorLux Neuro-Oncology, Department of Biomedicine, University of Bergen, Jonas Lies vei 91, 5009 Bergen, Norway
| | - Shuai Wang
- Department of Neurosurgery, Qilu Hospital of Shandong University and Institute of Brain and Brain-Inspired Science, Shandong University; Shandong Key Laboratory of Brain Function Remodeling, Jinan, 250012, China
| | - Sabrina Fritah
- NorLux Neuro-Oncology Laboratory, Department of Oncology, Luxembourg Institute of Health, L-1526 Luxembourg, Luxembourg
| | - Xu Wang
- Department of Neurosurgery, Qilu Hospital of Shandong University and Institute of Brain and Brain-Inspired Science, Shandong University; Shandong Key Laboratory of Brain Function Remodeling, Jinan, 250012, China
| | - Wenjing Zhou
- Department of Neurosurgery, Qilu Hospital of Shandong University and Institute of Brain and Brain-Inspired Science, Shandong University; Shandong Key Laboratory of Brain Function Remodeling, Jinan, 250012, China
| | - Ning Yang
- Department of Neurosurgery, Qilu Hospital of Shandong University and Institute of Brain and Brain-Inspired Science, Shandong University; Shandong Key Laboratory of Brain Function Remodeling, Jinan, 250012, China
| | - Shilei Ni
- Department of Neurosurgery, Qilu Hospital of Shandong University and Institute of Brain and Brain-Inspired Science, Shandong University; Shandong Key Laboratory of Brain Function Remodeling, Jinan, 250012, China
| | - Bin Huang
- Department of Neurosurgery, Qilu Hospital of Shandong University and Institute of Brain and Brain-Inspired Science, Shandong University; Shandong Key Laboratory of Brain Function Remodeling, Jinan, 250012, China
| | - Anjing Chen
- Department of Neurosurgery, Qilu Hospital of Shandong University and Institute of Brain and Brain-Inspired Science, Shandong University; Shandong Key Laboratory of Brain Function Remodeling, Jinan, 250012, China
| | - Gang Li
- Department of Neurosurgery, Qilu Hospital of Shandong University and Institute of Brain and Brain-Inspired Science, Shandong University; Shandong Key Laboratory of Brain Function Remodeling, Jinan, 250012, China
| | - Hrvoje Miletic
- NorLux Neuro-Oncology, Department of Biomedicine, University of Bergen, Jonas Lies vei 91, 5009 Bergen, Norway.,Department of Pathology, Haukeland University Hospital, 5021 Bergen, Norway
| | - Frits Thorsen
- Department of Neurosurgery, Qilu Hospital of Shandong University and Institute of Brain and Brain-Inspired Science, Shandong University; Shandong Key Laboratory of Brain Function Remodeling, Jinan, 250012, China.,NorLux Neuro-Oncology, Department of Biomedicine, University of Bergen, Jonas Lies vei 91, 5009 Bergen, Norway.,The Molecular Imaging Center, Department of Biomedicine, University of Bergen, Jonas Lies vei 91, 5009 Bergen, Norway
| | - Rolf Bjerkvig
- NorLux Neuro-Oncology, Department of Biomedicine, University of Bergen, Jonas Lies vei 91, 5009 Bergen, Norway.,NorLux Neuro-Oncology Laboratory, Department of Oncology, Luxembourg Institute of Health, L-1526 Luxembourg, Luxembourg
| | - Xingang Li
- Department of Neurosurgery, Qilu Hospital of Shandong University and Institute of Brain and Brain-Inspired Science, Shandong University; Shandong Key Laboratory of Brain Function Remodeling, Jinan, 250012, China
| | - Jian Wang
- Department of Neurosurgery, Qilu Hospital of Shandong University and Institute of Brain and Brain-Inspired Science, Shandong University; Shandong Key Laboratory of Brain Function Remodeling, Jinan, 250012, China.,NorLux Neuro-Oncology, Department of Biomedicine, University of Bergen, Jonas Lies vei 91, 5009 Bergen, Norway
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Long non-coding RNA CRNDE promotes malignant progression of hepatocellular carcinoma through the miR-33a-5p/CDK6 axis. J Physiol Biochem 2020; 76:469-481. [DOI: 10.1007/s13105-020-00754-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Accepted: 06/15/2020] [Indexed: 02/06/2023]
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72
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Zhou X, Lv L, Zhang Z, Wei S, Zheng T. LINC00294 negatively modulates cell proliferation in glioma through a neurofilament medium-mediated pathway via interacting with miR-1278. J Gene Med 2020; 22:e3235. [PMID: 32450002 DOI: 10.1002/jgm.3235] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 05/16/2020] [Accepted: 05/22/2020] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Accumulating long noncoding RNAs (lncRNAs) have been recognized to participate in glioma development. Nevertheless, knowledge of the role of linc00294 in glioma remains incomplete. METHODS Bioinformatics analysis predicted the differential expression of LINC00294 and neurofilament medium (NEFM) in tumors and normal tissues, as well as the binding between LINC00294 and miR-1278, miR-1278 and NEFM. Luciferase and RNA immunoprecipitation assays were used for the verification of interactions. The potential role of LINC00294 in glioma development was investigated using functional assays, singly and in parallel with its interplay with miR-1278 and NEFM. Cell counting kit-8 and EdU assays were applied to measure cellular proliferation, whereas the terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) method was employed to detect apoptosis. RESULTS A new lncRNA, LINC00294, was highly expressed in normal brain tissues. However, it was markedly down-regulated in GBM tissues and glioma cell lines. Overexpression of LINC00294 abates glioma cell proliferation but induces apoptosis. Meanwhile, tumor suppressor NEFM was revealed to be distinctly diminished in cancerous conditions and enhanced in glioma cells by LINC00294 up-regulation. Interactions of miR-1278 with LINC00294 or NEFM occur, and the expression of NEFM is up-regulated by LINC00294 through their competition with respect to binding to miR-1278. Finally, the rescue assays further confirmed that LINC00294 inhibits glioma cell proliferation by absorbing miR-1278 to enhance NEFM. CONCLUSIONS Collectively, our observations demonstrate the tumor-suppressive function of LINC00294 in glioma development by sponging miR-1278 and promoting NEFM, suggesting a potential use in therapy for glioma.
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Affiliation(s)
- Xiaokun Zhou
- Department of Neurosurgery, Affiliated Hospital of Guilin Medical University, Guilin, Guangxi, China
| | - Liang Lv
- College of Pharmacy, Guilin Medical University, Guilin, Guangxi, China
| | - Zhongyi Zhang
- Department of Neurosurgery, The Second Affiliated Hospital of Guilin Medical University, Guilin, Guangxi, China
| | - Shuyang Wei
- Department of Neurosurgery, Affiliated Hospital of Guilin Medical University, Guilin, Guangxi, China
| | - Tong Zheng
- Department of Neurosurgery, Affiliated Hospital of Guilin Medical University, Guilin, Guangxi, China
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Yang J, Yu D, Liu X, Changyong E, Yu S. LINC00641/miR-4262/NRGN axis confines cell proliferation in glioma. Cancer Biol Ther 2020; 21:758-766. [PMID: 32543324 DOI: 10.1080/15384047.2020.1776581] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Glioma is the most prevalent brain malignancy with high mortality. In recent decades, the regulatory role of long noncoding RNAs (lncRNAs) has been unmasked in glioma. In this study, we focused on the function and mechanism of LINC00641 in glioma. First of all, we found that LINC00641 was expressed at a low level in glioma cell lines. Importantly, overexpression of LINC00641 prevented cell proliferation but enhanced cell apoptosis. Meanwhile, NRGN, a previously-reported downregulated mRNA in GBM, was disclosed as a tumor suppressor in glioma cells. Besides, we verified that NRGN could be positively regulated by LINC00641 in glioma cells. Moreover, the cellular distribution of LINC00641 was identified to be cytoplasmic. Therefore, bioinformatics analysis and mechanism experiments were carried out and we determined that miR-4262 was the shared miRNA between LINC00641 and NRGN. In contrast to LINC00641 and NRGN, miR-4262 was dramatically upregulated in glioma cells. Furthermore, we confirmed that LINC00641 acted as a ceRNA in glioma cells via absorbing miR-4262 to upregulate NRGN. More importantly, silenced NRGN countervailed the repression on glioma cell proliferation caused by LINC00641 upregulation. Collectively, our findings unveiled that LINC00641 serves as a tumor inhibitor in glioma by targeting miR-4262/NRGN axis, providing a new potential therapeutic target for glioma patients.
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Affiliation(s)
- Jinghui Yang
- Department of Hepatobiliary and Pancreatic Surgery, China-Japan Union Hospital of Jilin University , Changchun, Jilin, China
| | - Duo Yu
- Department of Radiotherapy, Second Hospital of Jilin University , Changchun, Jilin, China
| | - Xueshibojie Liu
- Department of Otolaryngology, Head and Neck Surgery, Second Hospital of Jilin University , Changchun, Jilin, China
| | - E Changyong
- Department of Hepatobiliary and Pancreatic Surgery, China-Japan Union Hospital of Jilin University , Changchun, Jilin, China
| | - Shan Yu
- Department of Neurology, China-Japan Union Hospital of Jilin University , Changchun, Jilin, China
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74
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Liu P, Cai S, Li N. Circular RNA-hsa-circ-0000670 promotes gastric cancer progression through the microRNA-384/SIX4 axis. Exp Cell Res 2020; 394:112141. [PMID: 32535033 DOI: 10.1016/j.yexcr.2020.112141] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 05/29/2020] [Accepted: 06/07/2020] [Indexed: 01/19/2023]
Abstract
Circular RNAs (circRNAs), a special type of non-coding RNA molecules, have been addressed to be implicated in gastric cancer progression. The GSE93541 and GSE83521 microarrays found hsa-circRNA-000670 (hsa-circ-0000670) as an up-regulated circRNAin gastric cancer. We mainly investigated the function and molecular mechanisms of hsa-circ-0000670 involved in gastric cancer. The expression of hsa-circ-0000670 was determined by RT-qPCR to be highly expressed in gastric cancer tissues relative to corresponding adjacent normal tissues, as well as in gastric cancer cell lines relative to normal gastric mucosal epithelial cell line. By conducting EdU, scratch test and Transwell assays, hsa-circ-000670 was found to be a tumor promoter by potentiating the proliferative, invasive and migrating capabilities of gastric cancer cells. Consistently, a tumor-promotive role of hsa-circ-000670 was validated in vivo. Dual-luciferase reporter gene and RIP assays identified the binding of hsa-circ-0000670 to microRNA-384 (miR-384) and the binding of miR-384 to sine oculis-related homeobox 4 (SIX4). The oncogenic potential of hsa-circ-0000670 in gastric cancer cells were inhibited by overexpressed miR-384. Mechanistically, SIX4 was targeted by miR-384 and was upregulated in gastric cancer. High SIX4 expression was suggested to correlate with the poor prognosis of gastric cancer patients. Additionally, silencing of SIX4 delayed tumor growth and progression, which were reversed by overexpression of hsa-circ-0000670. Taken together, hsa-circ-0000670 acts as a tumor promotor in gastric cancer progression and might be a potential target for gastric cancer treatment.
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Affiliation(s)
- Pengliang Liu
- Department of Gastroenterology and Endoscopy, The Fourth Affiliated Hospital of China Medical University, Shenyang, 110032, PR China
| | - Shuang Cai
- Department of Gastroenterology and Endoscopy, The Fourth Affiliated Hospital of China Medical University, Shenyang, 110032, PR China
| | - Nuo Li
- Department of Gastroenterology and Endoscopy, The Fourth Affiliated Hospital of China Medical University, Shenyang, 110032, PR China.
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75
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Zhang W, Sui Y. CircBPTF knockdown ameliorates high glucose-induced inflammatory injuries and oxidative stress by targeting the miR-384/LIN28B axis in human umbilical vein endothelial cells. Mol Cell Biochem 2020; 471:101-111. [PMID: 32524321 DOI: 10.1007/s11010-020-03770-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Accepted: 05/31/2020] [Indexed: 12/17/2022]
Abstract
Endothelial dysfunction is a primary cause of diabetes-related vascular complications, such as atherosclerosis. Accumulated research indicates that circular RNAs (circRNAs) are involved in the pathogenesis of cardiovascular disease. This study intended to explore the function and mechanism of circBPTF in high glucose (HG)-induced vascular inflammatory models. Cell model of inflammatory injury was established in human umbilical vein endothelial cells (HUVECs) with HG treatment. The expression of circBPTF, miR-384 and lin-28 homolog B (LIN28B) was detected by quantitative real-time polymerase chain reaction (qRT-PCR). Cell viability and apoptosis were assessed by cell counting kit-8 (CCK-8) and flow cytometry assay, respectively. The expression of LIN28B was also examined using western blot. The release of proinflammatory cytokines was detected by enzyme-linked immunosorbent assay (ELISA). The production of ROS, SOD and MDA was detected to assess oxidative stress. The target relationship was predicted by bioinformatics analysis and verified using dual-luciferase reporter assay and RIP assay. CircBPTF was highly regulated in HG-induced HUVECs. CircBPTF knockdown increased cell viability and suppressed cell apoptosis, the release of proinflammatory cytokines and oxidative stress in HG-induced HUVECs. MiR-384 was targeted by circBPTF, and its downregulation abolished the effects of circBPTF knockdown. Moreover, circBPTF positively regulated LIN28B expression via targeting miR-384. Overall, CircBPTF knockdown protected against HG-induced inflammatory injuries and oxidative stress by mediating the miR-384/LIN28B axis in HUVECs. Our study provides a feasible theoretical strategy for preventing vascular cell dysfunction.
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Affiliation(s)
- Wei Zhang
- Department of Internal Medicine, The Second People's Hospital of Jinan, Huaiyin District, No. 148, Jingyi Road, Jinan, 250001, Shandong, China
| | - Yunun Sui
- Department of Internal Medicine, The Second People's Hospital of Jinan, Huaiyin District, No. 148, Jingyi Road, Jinan, 250001, Shandong, China.
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76
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Liu C, Hou J, Shan F, Wang L, Lu H, Ren T. Long Non-Coding RNA CRNDE Promotes Colorectal Carcinoma Cell Progression and Paclitaxel Resistance by Regulating miR-126-5p/ATAD2 Axis. Onco Targets Ther 2020; 13:4931-4942. [PMID: 32581554 PMCID: PMC7276211 DOI: 10.2147/ott.s237580] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Accepted: 04/21/2020] [Indexed: 12/11/2022] Open
Abstract
Background Long non-coding RNA colorectal neoplasia differentially expressed (lncRNA CRNDE) and microRNA-126-5p (miR-126-5p) were reported to be related to the development of colorectal carcinoma (CRC). However, the detailed mechanism of CRNDE and miR-126-5p is not fully understood. The purpose of this research was to explore their roles and molecular mechanism in CRC. Methods Quantitative real-time polymerase chain reaction was performed to detect the transcription levels of genes. Paclitaxel (PTX) was used to analyze cell drug resistance. 3-(4, 5-Dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide assay and flow cytometry analysis were employed to assess cell proliferation and apoptosis, respectively. Furthermore, cell migratory and invasive abilities were measured using transwell assay. The interaction between miR-126-5p and CRNDE or ATPase family AAA domain-containing protein 2 (ATAD2) was predicted by online tool starbase and then confirmed using the dual-luciferase reporter assay. Besides, Western blot assay was carried out to detect the levels of proteins. Results CRNDE and ATAD2 expressions were upregulated and miR-126-5p expression was downregulated in CRC tissues and cells. CRNDE depletion repressed PTX resistance and the growth of CRC cells. Interestingly, we found that miR-126-5p was a target gene of CRNDE, and miR-126-5p directly targeted ATAD2. Furthermore, CRNDE affected CRC cell progression via modulation of miR-126-5p/ATAD2 axis in CRC cells. Conclusion Our data suggested that CRNDE regulated CRC cell development and PTX resistance by modulating miR-126-5p/ATAD2 axis, providing the theoretical basis for the treatment of CRC patients.
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Affiliation(s)
- Chang Liu
- Department of Oncology, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang 471000, People's Republic of China
| | - Jianfeng Hou
- Department of Oncology, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang 471000, People's Republic of China
| | - Fengxiao Shan
- Department of Oncology, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang 471000, People's Republic of China
| | - Lijuan Wang
- Department of Oncology, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang 471000, People's Republic of China
| | - Hanjie Lu
- Department of Oncology, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang 471000, People's Republic of China
| | - Tiejun Ren
- Department of Oncology, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang 471000, People's Republic of China
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77
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Zhou W, She G, Yang K, Zhang B, Liu J, Yu B. MiR-384 inhibits proliferation and migration of trophoblast cells via targeting PTBP3. Pregnancy Hypertens 2020; 21:132-138. [PMID: 32512528 DOI: 10.1016/j.preghy.2020.05.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 04/22/2020] [Accepted: 05/27/2020] [Indexed: 12/12/2022]
Abstract
Preeclampsia (PE) is one type of hypertension during pregnancy that seriously threatens maternal and infant health. Trophoblast dysfunction, such as decreased proliferation and migration, is closely related to the occurrence and development of PE. MicroRNAs (miRNAs) have been proven to play an important role in many diseases, including PE. miR-384 was reported to play a regulatory role in promoting cell apoptosis and inhibiting proliferation, migration and invasion in a variety of tumors. Previously, we found that miR-384 is upregulated in the placenta and plasma in the context of PE. In this study, we elucidated the function of miR-384 in the trophoblast cell line HTR-8/SVneo and the trophoblastic tumor cell line JEG-3. Cell proliferation and migration were inhibited by miR-384 overexpression but promoted by miR-384 downregulation. Subsequently, polypyrimidine tract-binding protein 3(PTBP3) was found to be a direct target gene of miR-384. PTBP3 was downregulated in placental tissues from PE patients, and a negative correlation was found between PTBP3 and miR-384. Our results suggest that the miR-384/PTBP3 axis plays an important role in regulating trophoblast function during the progression of PE, and these data provide novel insight into the molecular pathogenesis of this disorder.
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Affiliation(s)
- Wenbo Zhou
- Changzhou Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University, Changzhou 213003, Jiangsu, China
| | - Guangtong She
- Changzhou Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University, Changzhou 213003, Jiangsu, China
| | - Kaiyan Yang
- Changzhou Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University, Changzhou 213003, Jiangsu, China
| | - Bin Zhang
- Changzhou Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University, Changzhou 213003, Jiangsu, China
| | - Jingbing Liu
- Changzhou Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University, Changzhou 213003, Jiangsu, China
| | - Bin Yu
- Changzhou Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University, Changzhou 213003, Jiangsu, China.
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78
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Lu Y, Sha H, Sun X, Zhang Y, Wu Y, Zhang J, Zhang H, Wu J, Feng J. CRNDE: an oncogenic long non-coding RNA in cancers. Cancer Cell Int 2020; 20:162. [PMID: 32435153 PMCID: PMC7218640 DOI: 10.1186/s12935-020-01246-3] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2019] [Accepted: 05/07/2020] [Indexed: 12/12/2022] Open
Abstract
Colorectal neoplasia differentially expressed (CRNDE) is a long non-coding RNA which has been proved upregulated in various cancers. Meanwhile, CRNDE has been demonstrated to be involved in multiple biological processes of different cancers according to previous study. Moreover, recent studies suggested CRNDE might be a potential diagnostic biomarker and prognostic predictor due to its high sensitivity and specificity in cancer tissues and plasma. In this review, we summarize the biological function of CRNDE and the relevant mechanisms in cancers to establish a molecular basis for the clinical use of CRNDE in the future.
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Affiliation(s)
- Ya Lu
- 1Nanjing Medical University Affiliated Cancer Hospital & Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research, Baiziting42, 210009 Nanjing, China.,2The Forth Clinical School of Nanjing Medical University, Nanjing, China
| | - Huanhuan Sha
- 1Nanjing Medical University Affiliated Cancer Hospital & Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research, Baiziting42, 210009 Nanjing, China.,2The Forth Clinical School of Nanjing Medical University, Nanjing, China
| | - Xun Sun
- 1Nanjing Medical University Affiliated Cancer Hospital & Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research, Baiziting42, 210009 Nanjing, China.,2The Forth Clinical School of Nanjing Medical University, Nanjing, China
| | - Yuan Zhang
- 1Nanjing Medical University Affiliated Cancer Hospital & Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research, Baiziting42, 210009 Nanjing, China
| | - Yang Wu
- 1Nanjing Medical University Affiliated Cancer Hospital & Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research, Baiziting42, 210009 Nanjing, China
| | - Junying Zhang
- 1Nanjing Medical University Affiliated Cancer Hospital & Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research, Baiziting42, 210009 Nanjing, China
| | - Hui Zhang
- 1Nanjing Medical University Affiliated Cancer Hospital & Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research, Baiziting42, 210009 Nanjing, China.,2The Forth Clinical School of Nanjing Medical University, Nanjing, China
| | - Jianzhong Wu
- 1Nanjing Medical University Affiliated Cancer Hospital & Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research, Baiziting42, 210009 Nanjing, China
| | - Jifeng Feng
- 1Nanjing Medical University Affiliated Cancer Hospital & Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research, Baiziting42, 210009 Nanjing, China
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79
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Subhramanyam CS, Cao Q, Wang C, Heng ZSL, Zhou Z, Hu Q. Role of PIWI-like 4 in modulating neuronal differentiation from human embryonal carcinoma cells. RNA Biol 2020; 17:1613-1624. [PMID: 32372724 DOI: 10.1080/15476286.2020.1757896] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
PIWI homologs constitute a subclass of the Argonaute family. Traditionally, they have been shown to associate with a specific class of small RNAs, piRNAs, to suppress transposable elements and protect genomic integrity in germ cells. Recent studies imply that PIWI proteins may also exert important biological functions in somatic contexts, including the brain. However, their exact role in neural development remains unknown. Hence we investigated whether PIWI proteins are involved in neuronal differentiation. By using an established cell model for studying neurogenesis, NTera2/D1 (NT2) cells, we found that a particular PIWI homolog, PIWIL4 was increasingly upregulated throughout the course of all-trans retinoic acid (RA)-mediated neuronal differentiation. During this process, PIWIL4 knockdown led to partial recovery of embryonic stem cell markers, while suppressing RA-induced expression of neuronal markers. Consistently, PIWIL4 overexpression further elevated their expression levels. Furthermore, co-immunoprecipitation revealed an RA-induced interaction between PIWIL4 and the H3K27me3 demethylase UTX. Chromatin immunoprecipitation showed that this interaction could be essential for the removal of H3K27me3 from the promoters of RA-inducible genes. By a similar mechanism, PIWIL4 knockdown also suppressed the expression of PTN and NLGN3, two important neuronal factors secreted to regulate glioma activity. We further noted that the conditioned medium collected from PIWIL4-silenced NT2 cells significantly reduced the proliferation of glioma cells. Thus, our data suggest a novel somatic role of PIWIL4 in modulating the expression of neuronal genes that can be further characterized to promote neuronal differentiation and to modulate the activity of glioma cells.
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Affiliation(s)
| | - Qiong Cao
- Department of Anatomy, Yong Loo Lin School of Medicine, National University of Singapore , Singapore
| | - Cheng Wang
- Department of Anatomy, Yong Loo Lin School of Medicine, National University of Singapore , Singapore
| | - Zealyn Shi Lin Heng
- Department of Anatomy, Yong Loo Lin School of Medicine, National University of Singapore , Singapore
| | - Zhihong Zhou
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore , Singapore
| | - Qidong Hu
- Department of Anatomy, Yong Loo Lin School of Medicine, National University of Singapore , Singapore
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80
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Abstract
Glioma is the most malignant primary brain cancer which frequently occurred in adults. In recent years, long-non coding RNAs (lncRNAs) have been demonstrated to play pivotal roles in human cancers. However, the role of most lncRNAs in gliomagenesis has not been probed. Presently, through TCGA, a novel lncRNA LINC01198 was found to be up-regulated and associated with clinical outcomes in glioblastoma multiforme (GBM). In our study, LINC01198 was proved to be up-regulated in glioma cell lines, and silenced LINC01198 curbed glioma cell proliferation and accelerated cell apoptosis. Importantly, we corroborated that LINC01198 activated the PI3 K/AKT pathway to aggravate glioma progression by targeting PIK3 CA and PTEN. Subsequently, LINC01198 was validated to localize in both cytoplasm and nucleus of glioma cells. Through mechanistic exploration, we illustrated that LINC01198 increased PIK3CA expression by sponging miR-129-5p in the cytoplasm. Furthermore, PTEN was transcriptionally repressed by REST/RCOR1/HDAC2 complex. More importantly, LINC01198 accelerated the assembly of REST/RCOR1/HDAC2 complex and recruited such complex to PTEN promoter so as to impair PTEN expression in glioma. Finally, we further verified that LINC01198 hindered glioma tumour growth in vivo through AKT-dependent manner. Jointly, LINC01198 activates PI3 K/AKT signalling to exert oncogenic function in gliomagenesis by regulating PIK3CA and PTEN, which highlights a new approach for glioma treatment.
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Affiliation(s)
- Yuan Xie
- Department of Neurosurgery, The Second Affiliated Hospital of Chongqing Medical University , Chongqing, China
| | - Yuan Cheng
- Department of Neurosurgery, The Second Affiliated Hospital of Chongqing Medical University , Chongqing, China
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81
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Recent Trends of microRNA Significance in Pediatric Population Glioblastoma and Current Knowledge of Micro RNA Function in Glioblastoma Multiforme. Int J Mol Sci 2020; 21:ijms21093046. [PMID: 32349263 PMCID: PMC7246719 DOI: 10.3390/ijms21093046] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 04/20/2020] [Accepted: 04/21/2020] [Indexed: 12/12/2022] Open
Abstract
Central nervous system tumors are a significant problem for modern medicine because of their location. The explanation of the importance of microRNA (miRNA) in the development of cancerous changes plays an important role in this respect. The first papers describing the presence of miRNA were published in the 1990s. The role of miRNA has been pointed out in many medical conditions such as kidney disease, diabetes, neurodegenerative disorder, arthritis and cancer. There are several miRNAs responsible for invasiveness, apoptosis, resistance to treatment, angiogenesis, proliferation and immunology, and many others. The research conducted in recent years analyzing this group of tumors has shown the important role of miRNA in the course of gliomagenesis. These particles seem to participate in many stages of the development of cancer processes, such as proliferation, angiogenesis, regulation of apoptosis or cell resistance to cytostatics.
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82
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The PABPC5/HCG15/ZNF331 Feedback Loop Regulates Vasculogenic Mimicry of Glioma via STAU1-Mediated mRNA Decay. MOLECULAR THERAPY-ONCOLYTICS 2020; 17:216-231. [PMID: 32346611 PMCID: PMC7183103 DOI: 10.1016/j.omto.2020.03.017] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 03/25/2020] [Indexed: 02/07/2023]
Abstract
Glioma is the most common primary malignancy in the brain, and vasculogenic mimicry (VM) is one of the blood supply methods. Here we investigated the possibility that lncRNAs regulate the stability of transcription factors through the SMD pathway, which affects proliferation, migration, invasion, and the ability to form VMs in glioma. Expression of PABPC5, HCG15, and ZNF331 was detected by real-time qPCR or western blot in glioma. Cell Counting Kit-8, Transwell assays, and in vitro VM tube formation were used to investigate PABPC5, HCG15, and ZNF331 function in cell proliferation, migration, invasion, and VM, respectively. ChIP assays were used to ascertain the interaction betweenZNF331 and LAMC2 or PABPC5. PABPC5 and HCG15 were highly expressed in glioma cells. ZNF331 was lowly expressed. PABPC5 bound HCG15 to increase its stability. Knockdown HCG15 reduced the degradation of ZNF331 mRNA by the SMD pathway. ZNF331 inhibited transcription through binding to the promoter region of LAMC2 and PABPC5 and inhibited the ability to form VMs in glioma cells. The PABPC5/HCG15/ZNF331 feedback loop plays an important role in regulating VM formation in glioma and provides new targets for glioma treatment.
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83
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Fu CH, Zhang BH, Fang CZ, Yan CX, Lai FF, Chen S, Wang GH. Long non-coding RNA CRNDE deteriorates intrauterine infection-induced neonatal brain injury. Mol Cell Probes 2020; 52:101565. [PMID: 32234564 DOI: 10.1016/j.mcp.2020.101565] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Revised: 03/09/2020] [Accepted: 03/24/2020] [Indexed: 01/22/2023]
Abstract
BACKGROUND This study aimed to test the hypothesis that long non-coding RNA (lncRNA) colorectal neoplasia differentially expressed (CRNDE) could exacerbate brain injury caused by intrauterine infection in neonatal rats. METHODS Intrauterine infection was induced in pregnant rats by lipopolysaccharide (LPS). After delivery, newborn rats with brain injury caused by intrauterine infection were randomly divided into control, control shRNA, and CRNDE shRNA groups. CRNDE expression in serum and amniotic fluid of pregnant rats and neonatal brain tissues were determined by quantitative real-time PCR (qRT-PCR). Morris water maze (MWM) task was used to test the spatial learning and memory ability. Histological examination and apoptosis detection were performed by hematoxylin and eosin (H&E) and terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) staining, respectively. Immunohistochemistry was conducted to evaluate the activation of astrocytes and microglia. RESULTS LncRNA CRNDE was highly expressed in serum and amniotic fluid of maternal rats and in brain tissues of offspring rats. Furthermore, shRNA-mediated CRNDE downregulation could rescue the spatial learning and memory ability, improve brain histopathological changes and cell death, and inhibit the activation of astrocytes and microglia caused by LPS. CONCLUSION CRNDE silencing possessed a cerebral protective effect in neonatal rats with brain injury caused by interauterine infection.
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Affiliation(s)
- Chun-Hua Fu
- Department of Neonatology, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China
| | - Bing-Hong Zhang
- Department of Neonatology, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China
| | - Cheng-Zhi Fang
- Department of Neonatology, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China
| | - Cai-Xia Yan
- Department of Neonatology, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China
| | - Fang-Fang Lai
- Department of Pediatric, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China
| | - Sai Chen
- Department of Neonatology, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China
| | - Gao-Hua Wang
- Department of Psychiatry, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China.
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84
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Ye F, Xu R, Ge Y, Zheng Y, Liu X, Deng P, Xu X. LINC00963 Confers Oncogenic Properties in Glioma by Regulating the miR-506/BCAT1 Axis. Cancer Manag Res 2020; 12:2339-2351. [PMID: 32273770 PMCID: PMC7108718 DOI: 10.2147/cmar.s246332] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Accepted: 03/16/2020] [Indexed: 12/21/2022] Open
Abstract
Background Glioma is a prevalent disease of the central nervous system with a high incidence and mortality rate. Many long noncoding RNAs (lncRNAs) have been determined to be critical regulators of glioma oncogenesis. However, the function and mechanism of LINC00963 in glioma have not been fully elucidated. Methods The expression level of RNA was determined by qRT-PCR, and the protein level was determined by Western blot analysis. A luciferase activity assay was conducted to verify the interaction between miRNA and lncRNA or the target gene. The proliferation, cell cycle distribution, invasion, and migration were evaluated by MTT, EdU, flow cytometry, wound-healing and Transwell invasion assays, respectively. In vivo tumor growth was evaluated in a xenograft nude mouse model. Results We found that LINC00963 was upregulated in glioma cells and tissues and associated with the poor prognosis of patients with glioma. Ectopic expression of LINC00963 promoted cell proliferation, cell cycle progression, migration, and invasion in vitro and tumorigenesis in vivo. Mechanistically, the results of luciferase activity and RNA pulldown assays validated that LINC00963 could act as a molecular sponge of miR-506. Reciprocal repression was found between LINC00963 and miR-506. In addition, BCAT1 was identified as a target of miR-506, and both the mRNA and protein levels of BCAT1 were reduced by miR-506. In tumor tissues, the expression of BCAT1 was negatively and positively correlated with miR-506 and LINC00963 expression, respectively. The reintroduction of BCAT1 in glioma cells abolished the tumor suppressive function of miR-506 by promoting cell viability and motility. The upregulated LINC00963 and BCAT1 were associated with the aggressive phenotypes of tumors. Conclusion Our data revealed that LINC00963 confers oncogenic function in the progression of glioma and that the LINC00963/miR-506/BCAT1 axis may be a novel mechanism and therapeutic strategy for this disease.
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Affiliation(s)
- Feng Ye
- Department of Neurosurgery, The Second People's Hospital of Chengdu, Chengdu, Sichuan 610021, People's Republic of China
| | - Ronghua Xu
- Department of Neurosurgery, The Second People's Hospital of Chengdu, Chengdu, Sichuan 610021, People's Republic of China
| | - Yuanhong Ge
- Department of Neurosurgery, The Second People's Hospital of Chengdu, Chengdu, Sichuan 610021, People's Republic of China
| | - Yi Zheng
- Department of Neurosurgery, The Second People's Hospital of Chengdu, Chengdu, Sichuan 610021, People's Republic of China
| | - Xiaowei Liu
- Department of Neurosurgery, The Second People's Hospital of Chengdu, Chengdu, Sichuan 610021, People's Republic of China
| | - Pingfu Deng
- Department of Neurosurgery, The Second People's Hospital of Chengdu, Chengdu, Sichuan 610021, People's Republic of China
| | - Xuejun Xu
- Department of Neurosurgery, The Second People's Hospital of Chengdu, Chengdu, Sichuan 610021, People's Republic of China
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85
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Yao P, Li YL, Chen Y, Shen W, Wu KY, Xu WH. Overexpression of long non-coding RNA Rian attenuates cell apoptosis from cerebral ischemia-reperfusion injury via Rian/miR-144-3p/GATA3 signaling. Gene 2020; 737:144411. [PMID: 32006596 DOI: 10.1016/j.gene.2020.144411] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 01/14/2020] [Accepted: 01/27/2020] [Indexed: 12/31/2022]
Abstract
Long non-coding RNAs (lncRNAs) have been identified in cerebral ischemia-reperfusion (I/R) injury nowadays. Herein, we uncovered the function and underlying mechanism of the lncRNA Rian in cerebral I/R injury. The oxygen-glucose deprivation model in N2a cells was offered to mimic cerebral I/R injury in vitro. Trypan blue staining, reactive oxygen species (ROS) production, and caspase-3 activity were used to evaluate cell apoptosis. Then, middle cerebral artery occlusion was conducted to evaluate the function of lncRNA Rian in mice. Real-time PCR and western blotting were performed to determine the expression of lncRNA Rian, miR-144-3p, GATA binding protein 3 (GATA3), caspase-3, Bax, and Bcl-2. The results showed that both Rian and GATA3 were downregulated, and miR-144-3p was upregulated in cerebral I/R injury in vitro and in vivo. Overexpression of Rian could inhibit the cell apoptosis induced by oxygen-glucose deprivation. Furthermore, overexpression of Rian distinctly reduced the infarct size, and it also improved the neurological score. Overexpression of Rian could abolish miR-144-3p-mediated I/R injury in vitro and in vivo. Besides, GATA3 was the target of miR-144-3p and GATA3 could be regulated co-operatively by miR-144-3p and Rian. Consequently, these findings showed that the Rian/miR-144-3p/GATA3 axis is an essential signaling in cerebral I/R injury. The lncRNA Rian may serve as a potential target for novel treatment in patients with ischemic stroke.
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Affiliation(s)
- Peng Yao
- Department of Intensive Care Unit (ICU), Xiaogan Central Hospital, Wuhan University of Science and Technology, No. 6 Square Road, South District, Xiaogan, Hubei Province 432000, China
| | - Yi-Ling Li
- Department of Anesthesiology, Xiaogan Central Hospital, Wuhan University of Science and Technology, No. 6 Square Road, South District, Xiaogan, Hubei Province 432000, China
| | - Yong Chen
- Department of Anesthesiology, The Second Affiliated Medicine of Nanchang University, No. 1 Mingde Road, Nanchang, Jiangxi Province 330000, China
| | - Wei Shen
- Department of Intensive Care Unit (ICU), Xiaogan Central Hospital, Wuhan University of Science and Technology, No. 6 Square Road, South District, Xiaogan, Hubei Province 432000, China
| | - Ke-Yan Wu
- Department of Intensive Care Unit (ICU), Xiaogan Central Hospital, Wuhan University of Science and Technology, No. 6 Square Road, South District, Xiaogan, Hubei Province 432000, China
| | - Wen-Hao Xu
- Department of Intensive Care Unit (ICU), Xiaogan Central Hospital, Wuhan University of Science and Technology, No. 6 Square Road, South District, Xiaogan, Hubei Province 432000, China.
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86
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Li Y, Song J, Xie Z, Liu M, Sun K. Long noncoding RNA colorectal neoplasia differentially expressed alleviates sepsis-induced liver injury via regulating miR-126-5p. IUBMB Life 2020; 72:440-451. [PMID: 32031750 DOI: 10.1002/iub.2230] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Accepted: 01/04/2020] [Indexed: 02/06/2023]
Abstract
In this study, we intended to determine the detailed function and mechanism of long noncoding RNA (lncRNA) colorectal neoplasia differentially expressed (CRNDE) in liver injury induced by sepsis. Cecal ligation and perforation (CLP) models were adopted to induce sepsis in vivo with rats, and hepatic epithelial cells L02 were treated with lipopolysaccharide (LPS) to mimic sepsis in vitro. Enzyme-linked immunosorbent assay was conducted to detect the levels of tumor necrosis factor (TNF-α), interleukin-6 (IL-6), interleukin-10 (IL-10), and interferon-γ (IFN-γ) in the serum of rats. Quantitative real-time polymerase chain reaction (qRT-PCR) was performed to measure the expressions of CRNDE and microRNA-126-5p (miR-126-5p). Flow cytometry analysis and Cell Counting Kit-8 (CCK-8) method were carried out followed by the up- or downregulation of CRNDE and miR-126-5p to monitor the proliferation and apoptosis of L02 cells, respectively. Western blot was then applied to determine the expressions of cysteinyl aspartate specific proteinase 3 (caspase 3), poly(ADP-ribose)polymerase (PARP), cytochrome c, and BCL2-like 2 (BCL2L2). The interactions between CRNDE with miR-126-5p and miR-126-5p with BCL2L2 were determined through bioinformatics, qRT-PCR, dual luciferase reporter assay, and RNA immunoprecipitation assay. CRNDE was significantly decreased in liver tissues and hepatic cells in sepsis models. Upregulation of CRNDE promoted the viability of L02 cells and inhibited their apoptosis, while downregulation of CRNDE had opposite effects. The expression of CRNDE in liver tissues of septic rats was correlated with the expression miR-126-5p. It was also demonstrated that the transfection of miR-126-5p mimics reversed the inhibitory effect induced by CRNDE on apoptosis of L02 cells. CRNDE could specifically bind to miR-126-5p and reduce its expression, in turn promote the expression of BCL2L2. Additionally, CRNDE overexpression in rats ameliorated liver injury induced by sepsis. Downregulated CRNDE aggravates hepatic injury via regulating miR-126-5p and BCL2L2 during sepsis.
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Affiliation(s)
- Yang Li
- Department of Emergency, Minhang Hospital, Fudan University, Shanghai, China
| | | | - Zichen Xie
- Department of Emergency, Minhang Hospital, Fudan University, Shanghai, China
| | - Mei Liu
- Department of Emergency, Minhang Hospital, Fudan University, Shanghai, China
| | - Keyu Sun
- Department of Emergency, Minhang Hospital, Fudan University, Shanghai, China
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Li Y, Guo D. Identification of Novel lncRNA Markers in Glioblastoma Multiforme and Their Clinical Significance: A Study Based on Multiple Sequencing Data. Onco Targets Ther 2020; 13:1087-1098. [PMID: 32099410 PMCID: PMC7007783 DOI: 10.2147/ott.s235951] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Accepted: 01/22/2020] [Indexed: 12/13/2022] Open
Abstract
Background Long non-coding RNAs (lncRNAs) have been verified to have a vital role in the progression of glioblastoma multiforme (GBM). Our research was about to identify the potential lncRNAs which was closely associated with the pathogenesis and prognosis of glioblastoma multiforme. Methods All RNA sequence profiling data from patients with GBM were obtained from The Genotype-Tissue Expression (GTEx) and The Cancer Genome Atlas (TCGA). Differently expressed genes identified from GBM and control samples were used to construct competing endogenous RNA (ceRNA) network and perform corresponding functional enrichment analysis. Univariate Cox regression followed by lasso regression and multivariate Cox was used to validate independent lncRNA factors and construct a risk prediction model. Quantitative polymerase chain reaction (qPCR) was performed to verify the expression levels of potential lncRNA biomarkers in human GBM clinical specimens. A gene set enrichment analysis (GSEA) was subsequently conducted to explore potential signaling pathways in which critical lncRNAs may be involved. Moreover, nomogram plot was applied based on our prediction model and significant clinical covariates to visualize the prognosis of GBM patients. Results A total of 2023 differentially expressed genes (DEGs) including 56 lncRNAs, 1587 message RNAs (mRNAs) and 380 other RNAs were included. Based on predictive databases, 16lncRNAs, 32 microRNAs (miRNAs) and 99 mRNAs were used to construct a ceRNA network. Moreover, we performed a novel risk prediction model with 5 potential prognostic lncRNAs, in which 4 of them were newly identified in GBM, to predict the prognosis of GBM patients. Finally, a nomogram plot was constructed to illustrate the potential relationship between the prognosis of GBM and our risk prediction model and significant clinical covariates. Conclusion In this study, we identified 4 novel potential lncRNA biomarkers and constructed a prediction model of GBM prognosis. A simple-to-use nomogram was provided for further clinical application.
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Affiliation(s)
- Youwei Li
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Dongsheng Guo
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
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88
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Jia Q, Ye L, Xu S, Xiao H, Xu S, Shi Z, Li J, Chen Z. Circular RNA 0007255 regulates the progression of breast cancer through miR-335-5p/SIX2 axis. Thorac Cancer 2020; 11:619-630. [PMID: 31962380 PMCID: PMC7049509 DOI: 10.1111/1759-7714.13306] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Revised: 12/23/2019] [Accepted: 12/27/2019] [Indexed: 01/16/2023] Open
Abstract
Background Breast cancer (BC) is a common cancer in women worldwide. Emerging evidence has indicated that circular RNA hsa‐circ_0007255 (circ_0007255) is a prognostic mediator in BC progression. However, the functional role of circ_0007255 needs to be determined. Methods The expression of circ_0007255, microRNA (miR)‐335‐5p, and SIX Homeobox 2 (SIX2) was evaluated using quantitative real‐time polymerase chain reaction (qRT‐PCR) or western blot assay. Actinomycin D and RNase R treatment was performed to analyze the stability of circ_0007255. Additionally, Seahorse extracellular flux, colony formation and transwell analyses were carried out to detect oxygen consumption ratio (OCR), colony formation and cell mobility, respectively. The interaction between miR‐335‐5p and circ_0007255 or SIX2 was confirmed via dual‐luciferase reporter assay. A xenograft tumor model was established to explore the role of circ_0007255 in vivo. Results Circ_0007255 and SIX2 were overexpressed, but miR‐335‐5p was diminished in BC tissues and cells. Circ_0007255 absence inhibited oxygen consumption, colony formation, cell migration and invasion, and these effects were particularly abrogated via miR‐335‐5p upregulation in BC cells. Moreover, SIX2 deficiency eliminated the promotion effects of miR‐335‐5p inhibitor on oxygen consumption, colony formation, and cell mobility in BC cells. Importantly, circ_0007255 inhibited tumor growth in vivo. Mechanically, circ_0007255 was a sponge of miR‐335‐5p to regulate SIX2 expression in BC progression. Conclusion Circ_0007255 functioned as a novel oncogene in the progression of BC by regulating miR‐335‐5p/SIX2 axis, and might be a promising biomarker for BC treatment. Key points Significant findings of the study: Levels of circ_0007255 and SIX2 were upregulated, but miR‐335‐5p was diminished in BC tissues and cells. Circ_0007255 was an oncogene in BC development and exerted its function via miR‐335‐5p/SIX2 axis in BC. Tumor growth was reduced by circ_0007255 absence. What this study adds: Circ_0007255 functioned as a novel oncogene in the progression of BC by regulating miR‐335‐5p/SIX2 axis, and might be a promising biomarker for BC treatment.
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Affiliation(s)
- Qianxin Jia
- Department of Radiology, East Hospital, Xiamen University, Fuzhou, China.,Department of Radiology, Zhengxing Hospital, Zhangzhou, China
| | - Lanlan Ye
- Department of Nursing, Zhangzhou Health Vocational College, Zhangzhou, China
| | - Shangwen Xu
- Department of Radiology, East Hospital, Xiamen University, Fuzhou, China
| | - Hui Xiao
- Department of Radiology, East Hospital, Xiamen University, Fuzhou, China
| | - Siding Xu
- Department of Radiology, Zhengxing Hospital, Zhangzhou, China
| | - Zhaoyin Shi
- Department of Radiology, Zhengxing Hospital, Zhangzhou, China
| | - Jinsheng Li
- Department of Radiology, Zhengxing Hospital, Zhangzhou, China
| | - Ziqian Chen
- Department of Radiology, East Hospital, Xiamen University, Fuzhou, China
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Kong B, Li M, Gao B, Han B, Zhao W, Wang F. Retracted Article: Overexpression of circ_0034642 contributes to hypoxia-induced glycolysis, cell proliferation, migration and invasion in gliomas by facilitating TAGLN2 expression via sponging miR-625-5p. RSC Adv 2020; 10:897-908. [PMID: 35494452 PMCID: PMC9048227 DOI: 10.1039/c9ra08600e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Accepted: 12/17/2019] [Indexed: 11/21/2022] Open
Abstract
Glioma is an aggressive brain cancer with poor prognosis and high invasiveness. Dysregulation of circular RNAs (circRNAs) has been widely discovered in various cancers, including glioma. However, the molecular mechanism of circ_0034642 in glioma is still unclear. The expression of circ_0034642, microRNA (miR)-625-5p and transgelin-2 (TAGLN2) in glioma tumors and cells was detected by performing a quantitative real-time polymerase chain reaction (qRT-PCR). The stability of circ_0034642 was determined by carrying out RNase R treatment. Cell proliferation was evaluated by performing the 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2H-tetrazolium bromide (MTT) assay. Glycolysis was analyzed by measuring the extracellular acidification rate (ECAR) using glucose detection and lactic acid detection kits. Cell migration and invasion were determined by performing the transwell assay. Protein expression levels of the proteins hexokinase 2 (HK2), matrix metalloproteinase-2 (MMP2), matrix metalloproteinase-9 (MMP9) and TAGLN2 were analyzed using western blots. The interaction between miR-625-5p and circ_0034642 or TAGLN2 was proved using a dual-luciferase reporter system. Animal models were established by subcutaneously injecting glioma cells stably transfected with sh-NC or sh-circ_0034642. Circ_0034642 and TAGLN2 were overexpressed whereas miR-625-5p was expressed at low levels in glioma tumors and cells. Moreover, circ_0034642 and TAGLN2 were upregulated while miR-625-5p was downregulated under hypoxic conditions in a time-dependent manner. Next, elimination of circ_0034642 was shown to inhibit cell glycolysis, proliferation, migration and invasion under hypoxic conditions in gliomas. Then, we found that circ_0034642 acted as a “sponge” of miR-625-5p while TAGLN2 acted as a target of miR-625-5p. In addition, recovery of circ_0034642 attenuated the repression mediated by miR-625-5p on glioma cell glycolysis and progression under hypoxic conditions. Meanwhile, an inhibitor of miR-625-5p alleviated TAGLN2 deficiency-induced inhibition of glioma cell development under hypoxic conditions. We also discovered that circ_0034642 could interact with miR-625-5p and further alter the expression of TAGLN2. Lastly, a circ_0034642 knockdown hindered tumor growth in vivo by regulating the miR-625-5p/TAGLN2 axis. Enhanced expression of circ_0034642 was found to promote cell glycolysis, proliferation, migration and invasion under hypoxic conditions in gliomas by sponging miR-625-5p to improve TAGLN2 expression, providing prospective biomarkers for the diagnosis of glioma. Circ_0034642 was upregulated under hypoxic conditions in gliomas.![]()
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Affiliation(s)
- Bo Kong
- Department of Neurosurgery
- Affiliated Hospital of Jining Medical University
- Jining
- China
| | - Mingxuan Li
- Department of Neurosurgery
- Affiliated Hospital of Jining Medical University
- Jining
- China
| | - Bo Gao
- Department of Neurosurgery
- Affiliated Hospital of Jining Medical University
- Jining
- China
| | - Bin Han
- Department of Neurosurgery
- Affiliated Hospital of Jining Medical University
- Jining
- China
| | - Wanju Zhao
- Department of Neurosurgery
- Affiliated Hospital of Jining Medical University
- Jining
- China
| | - Fujun Wang
- Department of Neurosurgery
- Affiliated Hospital of Jining Medical University
- Jining
- China
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Liu Y, Yao K, Zhang K, Wang J, Dai Q, Wang R. Retracted Article: Circular RNA PTK2 modifies the progression and radiosensitivity in gastric cancer via miR-369-3p/ZEB1 axis. RSC Adv 2020; 10:1711-1723. [PMID: 35494710 PMCID: PMC9048038 DOI: 10.1039/c9ra08525d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Accepted: 12/03/2019] [Indexed: 12/19/2022] Open
Abstract
Gastric cancer (GC) is one of the common cancers worldwide. Emerging findings imply that aberrant expression of circular RNA_0003221 (circPTK2) is involved in GC. Nevertheless, the function of circPTK2 in GC needs more explanation. Profiles of circPTK2, microRNA (miR)-369-3p, and zinc finger E-box binding homeobox 1 (ZEB1) were determined by quantitative real-time polymerase chain reaction assay. 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide, flow cytometry, and transwell assays were employed to estimate cell proliferation, apoptosis, and mobility in GC cells, respectively. Meanwhile, levels of ZEB1 and other indicated proteins were tested using western blot. Survival fraction was assessed utilizing clonogenic assay. Additionally, the role of circPTK2 in tumorigenesis was investigated via a xenograft tumor model. Dual-luciferase reporter, RNA immunoprecipitation, and RNA pull-down assays were conducted to confirm the interrelation between miR-369-3p and circPTK2 or ZEB1. Levels of circPTK2 and ZEB1 were markedly augmented, but miR-369-3p was downregulated in GC tissues and cells. CircPTK2 depletion restrained cell growth, metastasis, and epithelial–mesenchymal transition, and promoted radiosensitivity in GC cells. And circPTK2 depletion reduced tumor growth and metastasis in vivo. Moreover, the effect of circPTK2 silencing on cellular phenotypes and radiosensitivity was regained by miR-369-3p inhibitor. Furthermore, upregulation of ZEB1 could overturn miR-369-3p mimic-induced effect on cell metastasis and radiosensitivity of GC cells. Mechanically, circPTK2 was a sponge of miR-369-3p to separate ZEB1. CircPTK2/miR-369-3p/ZEB1 axis modulated cell behaviors and radiosensitivity in GC; thus circPTK2 might serve as a promising target for GC therapy. Circular RNA PTK2 regulates the cell proliferation, apoptosis, mobility and radiosensitivity via ZEB1 by sponging miR-369-3p in gastric cancer.![]()
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Affiliation(s)
- Yuqiang Liu
- Department of Emergency
- Gansu Provincial Hospital
- Lanzhou
- China
| | - Kun Yao
- Department of Nuclear Medicine
- Gansu Provincial Hospital
- Lanzhou
- China
| | - Ke Zhang
- Department of Emergency
- Gansu Provincial Hospital
- Lanzhou
- China
| | - Jianping Wang
- Department of Emergency
- Gansu Provincial Hospital
- Lanzhou
- China
| | - Qiang Dai
- Department of Respiratory
- Gansu Provincial Hospital
- Lanzhou
- China
| | - Rong Wang
- Department of Radiotherapy
- Gansu Provincial Hospital
- Lanzhou
- China
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91
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Mulati M, Kobayashi Y, Takahashi A, Numata H, Saito M, Hiraoka Y, Ochi H, Sato S, Ezura Y, Yuasa M, Hirai T, Yoshii T, Okawa A, Inose H. The long noncoding RNA Crnde regulates osteoblast proliferation through the Wnt/β-catenin signaling pathway in mice. Bone 2020; 130:115076. [PMID: 31622775 DOI: 10.1016/j.bone.2019.115076] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Revised: 09/18/2019] [Accepted: 09/21/2019] [Indexed: 12/13/2022]
Abstract
In the past decade, a growing importance has been placed on understanding the significance of long noncoding RNAs (lncRNAs) in regulating development, metabolism, and homeostasis. Osteoblast proliferation and differentiation are essential elements in skeletal development, bone metabolism, and homeostasis. However, the underlying mechanisms of lncRNAs in the process of osteoblast proliferation and differentiation remain largely unknown. Through comprehensive analysis of lncRNAs during bone formation, we show that colorectal neoplasia differentially expressed (Crnde), previously viewed as a cancer-related lncRNA, is an important regulator of osteoblast proliferation and differentiation. Crnde was found to be expressed in osteoblasts, and its expression was induced by parathyroid hormone. Furthermore, Crnde knockout mice developed a low bone mass phenotype due to impaired osteoblast proliferation and differentiation. Overexpression of Crnde in osteoblasts promoted their proliferation, and conversely, reduced Crnde expression inhibited osteoblast proliferation. Although ablation of Crnde inhibited osteoblast differentiation, overexpression of Crnde restored it. Finally, we provided evidence that Crnde modulates bone formation through Wnt/β-catenin signaling. Therefore, our data suggest that Crnde is a novel regulator of bone metabolism.
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Affiliation(s)
- Mieradili Mulati
- Department of Orthopedics, Graduate School, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8519, Japan
| | - Yutaka Kobayashi
- Department of Orthopedics, Graduate School, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8519, Japan
| | - Akira Takahashi
- Department of Orthopedics, Graduate School, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8519, Japan
| | - Hoashi Numata
- Department of Orthopedics, Graduate School, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8519, Japan
| | - Masanori Saito
- Department of Orthopedics, Graduate School, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8519, Japan
| | - Yuichi Hiraoka
- Laboratory of Molecular Neuroscience, Medical Research Institute, Tokyo Medical and Dental University (TMDU), Bunkyo-ku, Tokyo 113-8510, Japan; Laboratory of Genome Editing for Biomedical Research, Medical Research Institute, Tokyo Medical and Dental University (TMDU), Bunkyo-ku, Tokyo 113-8510, Japan
| | - Hiroki Ochi
- Department of Orthopedics, Graduate School, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8519, Japan
| | - Shingo Sato
- Department of Orthopedics, Graduate School, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8519, Japan
| | - Yoichi Ezura
- Department of Molecular Pharmacology, Medical Research Institute, Tokyo Medical and Dental University, Tokyo 113-8510, Japan
| | - Masato Yuasa
- Department of Orthopedics, Graduate School, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8519, Japan
| | - Takashi Hirai
- Department of Orthopedics, Graduate School, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8519, Japan
| | - Toshitaka Yoshii
- Department of Orthopedics, Graduate School, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8519, Japan
| | - Atsushi Okawa
- Department of Orthopedics, Graduate School, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8519, Japan
| | - Hiroyuki Inose
- Department of Orthopedics, Graduate School, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8519, Japan.
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92
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Huang Z, Zhao X, Wu X, Xiang L, Yuan Y, Zhou S, Yu W. LncRNA UCA1 facilitated cell growth and invasion through the miR-206/CLOCK axis in glioma. Cancer Cell Int 2019; 19:316. [PMID: 31798345 PMCID: PMC6883638 DOI: 10.1186/s12935-019-1023-7] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Accepted: 11/11/2019] [Indexed: 01/27/2023] Open
Abstract
Background Glioma is a lethal malignant brain tumor, which affects the brain functions and is life-threatening. LncRNA UCA1 was identified as a pivotal regulator for tumorigenesis of glioma. MiR-206 was discovered to promote tumorigenesis and is critical in the regulation of cell proliferation in glioma. This study will discuss the expression of UCA1 regarding miR-206 and CLOCK, and their integrative effects in the proliferation and cell cycle of glioma cells. Methods qRT-PCR was conducted to measure the mRNA expressions of IgG and Ago2 in cells co-transfected with UCA1, and miR-216 in U251. Bioinformation was analyzed for the prediction of association between UCA1 and miR-206. Transwell migrations assays and invasion assays were utilized to observe the cell invasive ability. Western blot and immunofluorescence imaging were used to examine the protein expressions. In vivo comparisons and observations were also performed to investigate the role of UCA1 in glioma growth. Results LncRNA UCA1 was up-regulated in glioma cell lines and tissues. It elevated cell invasion via the inducing of epithelial-mesenchymal transition. We found that UCA1 can modulate miR-206 expression and serve as an endogenous sponge of miR-206. The EMT-inducer CLOCK was validated as a messenger RNA target of miR-206. At last, we demonstrated that UCA1 exerted the biology function through regulating miR-206 and CLOCK in vivo. Conclusions Overall, the results demonstrated that UCA1/miR-206/CLOCK axis participated in the progressing of glioma and could act as a promising therapeutic target.
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Affiliation(s)
- Zhi Huang
- 1Department of interventional radiology, The Second Affiliated Hospital of Guizhou Medical University, Guiyang, 556000 Guizhou People's Republic of China.,2Department of Interventional Radiology, The Affiliated Cancer Hospital of Guizhou Medical University, Guiyang, 550005 Guizhou People's Republic of China.,3Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education, Guizhou Medical University, No. 9 Beijing Road, Guiyang, 550002 Guizhou People's Republic of China
| | - Xuya Zhao
- 2Department of Interventional Radiology, The Affiliated Cancer Hospital of Guizhou Medical University, Guiyang, 550005 Guizhou People's Republic of China
| | - Xiaowen Wu
- 4Department of Interventional Radiology, The Affiliated Hospital of Guizhou Medical University, No. 9 Beijing Road, Guiyang, 550002 Guizhou People's Republic of China
| | - Lei Xiang
- 4Department of Interventional Radiology, The Affiliated Hospital of Guizhou Medical University, No. 9 Beijing Road, Guiyang, 550002 Guizhou People's Republic of China
| | - Yingnan Yuan
- 4Department of Interventional Radiology, The Affiliated Hospital of Guizhou Medical University, No. 9 Beijing Road, Guiyang, 550002 Guizhou People's Republic of China
| | - Shi Zhou
- 4Department of Interventional Radiology, The Affiliated Hospital of Guizhou Medical University, No. 9 Beijing Road, Guiyang, 550002 Guizhou People's Republic of China
| | - Wenfeng Yu
- 3Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education, Guizhou Medical University, No. 9 Beijing Road, Guiyang, 550002 Guizhou People's Republic of China
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Sun XH, Fan WJ, An ZJ, Sun Y. Inhibition of Long Noncoding RNA CRNDE Increases Chemosensitivity of Medulloblastoma Cells by Targeting miR-29c-3p. Oncol Res 2019; 28:95-102. [PMID: 31753063 PMCID: PMC7851516 DOI: 10.3727/096504019x15742472027401] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Long noncoding RNA CRNDE (CRNDE) recently emerged as a carcinogenic promoter in various cancers including medulloblastoma. However, the functions and molecular mechanisms of CRNDE to the acquired drug resistance of medulloblastoma are still unclear. The transcript levels of CRNDE were examined in four medulloblastoma cell lines exposed to cisplatin treatment, and IC50 values were calculated. Effects of CRNDE knockdown or miR-29c-3p overexpression on cell viability, colony formation, apoptosis, migration, and invasion were assessed using the CCK-8, colony formation assay, flow cytometry, and Transwell assays, respectively. RNA pulldown and RNA-binding protein immunoprecipitation (RIP) were performed to confirm the molecular interactions between CRNDE and miR-29c-3p involved in medulloblastoma cells. The in vivo role of CRNDE knockdown or miR-29c-3p overexpression on tumor growth and apoptosis was evaluated in a xenograft mouse model of human medulloblastoma. The transcript levels of lncRNA CRNDE were significantly higher in cisplatin-treated tumor cells with higher IC50 values. Depletion of CRNDE inhibited tumor cell proliferation and colony formation, induced cell apoptosis, and suppressed migration and invasion in medulloblastoma cells. Moreover, overexpression of miR-29c-3p inhibited tumor cell proliferation and colony formation, migration, and invasion, and enhanced apoptosis and chemosensitivity to cisplatin. In addition, CRNDE was found to act as a miR-29c-3p sponge. Furthermore, in vivo experiments showed the CRNDE/miR-29c-3p interactions involved in medulloblastoma. Our study demonstrates that CRNDE acts as a critical mediator of proliferation, apoptosis, migration, invasion, and resistance to chemotherapeutics via binding to and negatively regulating miR-29c-3p in medulloblastoma cells. These results provide novel molecular targets for treatment of medulloblastoma.
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Affiliation(s)
- Xiao-Hui Sun
- Medical Department, Qingdao Infectious Disease HospitalQingdao, ShandongP.R. China
| | - Wen-Jie Fan
- Department of Anesthesia, Qingdao Women and Children's HospitalQingdao, ShandongP.R. China
| | - Zong-Jian An
- Department of Pediatric Neurosurgery, Qingdao Women and Children's HospitalQingdao, ShandongP.R. China
| | - Yong Sun
- Department of Pediatric Neurosurgery, Qingdao Women and Children's HospitalQingdao, ShandongP.R. China
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LINC00174 down-regulation decreases chemoresistance to temozolomide in human glioma cells by regulating miR-138-5p/SOX9 axis. Hum Cell 2019; 33:159-174. [PMID: 31713817 DOI: 10.1007/s13577-019-00281-1] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Accepted: 09/13/2019] [Indexed: 02/07/2023]
Abstract
Temozolomide (TMZ) is one of the most common drugs selected for glioma chemotherapy, but the therapeutic effect of glioma treatment is usually limited due to its resistance. Long non-coding RNA (lncRNA) is gradually found to be a vital regulator in numerous physiological and pathological processes. Lately, it was revealed that LINC00174 could promote CRC cell growth. However, the function and potential regulatory manner of LINC00174 in glioma remain unclear. Our results demonstrated that the expression level of LINC00174 was higher in glioma tissues, and LINC00174 down-regulation could remarkably prevent cell proliferation and promote cell apoptosis in both glioma cells and TMZ-resistant glioma cells. Mechanistic studies revealed that LINC00174 can sponge microRNA-138-5p (miR-138-5p) and down-regulate its expression, thereby up-regulating the protein level of miR-138-5p's target, sex-determining region Y (SRY)-box9 protein (SOX9). Additionally, in vivo experiments revealed that LINC00174 shRNA can serve as a tumor suppressor through down-regulating SOX9 in glioma. In this study, a novel established regulatory way of LINC00174/miR-138-5p/SOX9 axis was systematically studied, which may provide a new manner for glioma therapy.
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Chen L, Gong X, Huang M. YY1-Activated Long Noncoding RNA SNHG5 Promotes Glioblastoma Cell Proliferation Through p38/MAPK Signaling Pathway. Cancer Biother Radiopharm 2019; 34:589-596. [PMID: 31657621 DOI: 10.1089/cbr.2019.2779] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Affiliation(s)
- Lei Chen
- Department of Neurosurgery, Hunan Provincial People's Hospital, (The First Affiliated Hospital of Hunan Normal University), Changsha, China
| | - Xin Gong
- Department of Neurosurgery, Hunan Provincial People's Hospital, (The First Affiliated Hospital of Hunan Normal University), Changsha, China
| | - Mengyi Huang
- Department of Neurosurgery, Hunan Provincial People's Hospital, (The First Affiliated Hospital of Hunan Normal University), Changsha, China
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96
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Han J, Liu Y, Zhen F, Yuan W, Zhang W, Song X, Dong F, Yao R, Qu X. STAT3 Regulates miR-384 Transcription During Th17 Polarization. Front Cell Dev Biol 2019; 7:253. [PMID: 31737624 PMCID: PMC6838002 DOI: 10.3389/fcell.2019.00253] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Accepted: 10/14/2019] [Indexed: 12/15/2022] Open
Abstract
MicroRNAs are powerful regulators of gene expression in physiological and pathological conditions. We previously showed that the dysregulation of miR-384 resulted in a T helper cell 17 (Th17) imbalance and contributed to the pathogenesis of experimental autoimmune encephalomyelitis, an animal model of multiple sclerosis. In this study, we evaluated the molecular mechanisms underlying the abnormal increase in miR-384. We did not detect typical CpG islands in the Mir384 promoter. Based on a bioinformatics analysis of the promoter, we identified three conserved transcription factor binding regions (RI, RII, and RIII), two of which (RII and RIII) were cis-regulatory elements. Furthermore, we showed that signal transducer and activator of transcription 3 (STAT3) bound to specific sites in RII and RIII based on chromatin immunoprecipitation, electrophoretic mobility shift assays, and site-specific mutagenesis. During Th17 polarization in vitro, STAT3 activation up-regulated miR-384, while a STAT3 phosphorylation inhibitor decreased miR-384 levels and reduced the percentage of IL-17+ cells, IL-17 secretion, and expression of the Th17 lineage marker Rorγt. Moreover, the simultaneous inhibition of STAT3 and miR-384 could further block Th17 polarization. These results indicate that STAT3, rather than DNA methylation, contributes to the regulation of miR-384 during Th17 polarization.
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Affiliation(s)
- Jingjing Han
- Department of Cell Biology and Neurobiology, Xuzhou Key Laboratory of Neurobiology, Xuzhou Medical University, Xuzhou, China.,Department of Neurology, the Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Yaping Liu
- National Demonstration Center for Experimental Basic Medical Sciences Education, Xuzhou Medical University, Xuzhou, China
| | - Fei Zhen
- Department of Cell Biology and Neurobiology, Xuzhou Key Laboratory of Neurobiology, Xuzhou Medical University, Xuzhou, China
| | - Wen Yuan
- Department of Cell Biology and Neurobiology, Xuzhou Key Laboratory of Neurobiology, Xuzhou Medical University, Xuzhou, China
| | - Wei Zhang
- Department of Cell Biology and Neurobiology, Xuzhou Key Laboratory of Neurobiology, Xuzhou Medical University, Xuzhou, China
| | - Xiaotao Song
- Department of Cell Biology and Neurobiology, Xuzhou Key Laboratory of Neurobiology, Xuzhou Medical University, Xuzhou, China
| | - Fuxing Dong
- Department of Cell Biology and Neurobiology, Xuzhou Key Laboratory of Neurobiology, Xuzhou Medical University, Xuzhou, China
| | - Ruiqin Yao
- Department of Cell Biology and Neurobiology, Xuzhou Key Laboratory of Neurobiology, Xuzhou Medical University, Xuzhou, China
| | - Xuebin Qu
- Department of Cell Biology and Neurobiology, Xuzhou Key Laboratory of Neurobiology, Xuzhou Medical University, Xuzhou, China
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97
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Zhu J, Gu W, Yu C. MATN1-AS1 promotes glioma progression by functioning as ceRNA of miR-200b/c/429 to regulate CHD1 expression. Cell Prolif 2019; 53:e12700. [PMID: 31667976 PMCID: PMC6985690 DOI: 10.1111/cpr.12700] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 07/05/2019] [Accepted: 09/06/2019] [Indexed: 12/26/2022] Open
Abstract
Objectives Long non‐coding RNA (lncRNA) MATN1‐AS1 is a newfound lncRNA that has been rarely explored in cancers. Herein, we would like to investigate its role in glioma. Materials and methods qRT‐PCR was conducted to examine gene expression in glioma. Then, MTT assay, colony formation assay and flow cytometry analysis were applied to evaluate the function of MATN1‐AS1 on glioma cells. Western blot was performed to measure the protein levels of genes. Besides, the luciferase reporter assay, RNA pull‐down assay, RIP assay and Spearman's correlation analysis were also performed as needed. Results Firstly, a data from TCGA showed that MATN1‐AS1 might be largely implicated in glioma. Meanwhile, MATN1‐AS1 upregulation confirmed in glioma predicted poor clinical outcomes. Functionally, MATN1‐AS1 knockdown restrained cell proliferation but stimulated apoptosis in vitro and repressed tumour growth in vivo. Mechanistic investigations validated that MATN1‐AS1 functioned as a ceRNA for miR‐200b/c/429 to upregulate CHD1 which was also verified to exert a growth‐promoting role in glioma cells here. Importantly, both CHD1 overexpression and miR‐200b/c/429 inhibition could rescue the obstructive role of MATN1‐AS1 silence in glioma cells. Conclusions MATN1‐AS1 promotes glioma progression through regulating miR‐200b/c/429‐CHD1 axis, suggesting MATN1‐AS1 as a probable target for glioma treatment.
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Affiliation(s)
- Jun Zhu
- Department of Neurosurgery, Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - WeiTing Gu
- Department of Neurosurgery, Rui Jin Hospital North, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Cai Yu
- Department of Neurosurgery, Rui Jin Hospital North, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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98
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Liang C, Yue C, Liang C, Ge H, Wei Z, Li G, Wu J, Huang H, Guo J. The Long Non-Coding RNA SBF2-AS1 Exerts Oncogenic Functions In Gastric Cancer By Targeting The miR-302b-3p/E2F Transcription Factor 3 Axis. Onco Targets Ther 2019; 12:8879-8893. [PMID: 31802900 PMCID: PMC6826189 DOI: 10.2147/ott.s210697] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2019] [Accepted: 09/23/2019] [Indexed: 12/27/2022] Open
Abstract
Background and aims Studies show that the long non-coding RNA, SBF2-AS1, plays a critical role in cancer progression, but the role of SBF2-AS1 in gastric cancer has not been reported. Therefore, this study aimed to elucidate the mechanism of SBF2-AS1 in gastric cancer (GC). Methods A meta-analysis, based on the gene expression omnibus database and TCGA dataset was performed to explore the prognostic value of SBF2-AS1 in GC. RT-PCR was also conducted to investigate the clinicopathologic value of SBF2-AS1 in GC. The effect of SBF2-AS1 in GC cell lines was conducted by gain or loss-of-function assays, and the SBF2-AS1 target gene was confirmed using a luciferase reporter assay and bioinformatics. Results SBF2-AS1 was overexpressed in GC tissues and cell lines, and SBF2-AS1 overexpression indicated poor overall survival and could serve as an independent prognostic factor. Moreover, knockdown of SBF2-AS1 inhibited cell growth, invasion, and metastasis, promoted apoptosis, and caused cell cycle arrest. Luciferase reporter and gain- or loss-of-function assays indicated that SBF2-AS1 acted as a competing endogenous (ceRNA) for microRNA (miR)-302b-3p, which blocked the inhibitory effect of miR-302b-3p on the E2F transcription factor 3 (E2F3). Conclusion SBF2-AS1 could be a potential diagnostic and prognostic biomarker in GC, and SBF2-AS1 accelerates tumor progression via the miR-302b-3p/E2F3 axis.
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Affiliation(s)
- Chaojie Liang
- Department of General Surgery, First Hospital/First Clinical Medical College of Shanxi Medical University, Taiyuan, Shanxi 030001, People's Republic of China
| | - Chaosen Yue
- Department of General Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, People's Republic of China
| | - Chaowei Liang
- Department of General Surgery, First Hospital/First Clinical Medical College of Shanxi Medical University, Taiyuan, Shanxi 030001, People's Republic of China
| | - Hua Ge
- Department of General Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, People's Republic of China
| | - Zhigang Wei
- Department of General Surgery, First Hospital/First Clinical Medical College of Shanxi Medical University, Taiyuan, Shanxi 030001, People's Republic of China
| | - Guangming Li
- Department of General Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, People's Republic of China
| | - Jixiang Wu
- Department of General Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, People's Republic of China
| | - He Huang
- Department of General Surgery, First Hospital/First Clinical Medical College of Shanxi Medical University, Taiyuan, Shanxi 030001, People's Republic of China
| | - Jiansheng Guo
- Department of General Surgery, First Hospital/First Clinical Medical College of Shanxi Medical University, Taiyuan, Shanxi 030001, People's Republic of China
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99
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Zhang C, Liang R, Gan X, Yang X, Chen L, Jian J. MicroRNA-384-5p/Beclin-1 As Potential Indicators For Epigallocatechin Gallate Against Cardiomyocytes Ischemia Reperfusion Injury By Inhibiting Autophagy Via PI3K/Akt Pathway. DRUG DESIGN DEVELOPMENT AND THERAPY 2019; 13:3607-3623. [PMID: 31802847 PMCID: PMC6802542 DOI: 10.2147/dddt.s219074] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Accepted: 10/02/2019] [Indexed: 12/16/2022]
Abstract
Background/Aims Epigallocatechin gallate (EGCG) has established protective actions against myocardial ischemia/reperfusion (I/R) injury by regulating autophagy. However, little is known about the mechanisms of EGCG in posttranscriptional regulation in the process of cardioprotection. Here we studied whether microRNAs play a role in EGCG-induced cardioprotection. Methods The myocardial I/R injury in vitro and in vivo model were made, with or without EGCG pretreatment. The upregulation and silencing of microRNA-384-5p (miR-384) and Beclin-1 in H9c2 cell lines were established. Rats were transfected with miR-384 specific shRNA. Dual-luciferase reporter gene assay was conducted to verify the relationship between miR-384 and Beclin-1. TTC staining was performed to analyze the area of myocardial infarct size. Cell viability was monitored by cell counting kit-8 (CCK-8). The release of cardiac troponin-I (cTnI) was examined by ELISA. The levels of autophagy-related genes or proteins expression were evaluated by qRT-PCR or Western blotting. Autophagosomes of myocardial cells were detected by transmission electron microscopy and laser scanning confocal microscope. Results I/R increased both autophagosomes and autolysosomes, thereby increasing autophagic flux both in vitro and in vivo. Pretreatment with EGCG attenuated I/R-induced autophagic flux expression, accompanied by an increase in cell viability and a decrease in the size of myocardial infarction. MiR-384 expression was down-regulated in H9c2 cell lines when subjected to I/R, while this suppression could be reversed by EGCG pretreatment. The dual-luciferase assay verified that Beclin-1 was a target of miR-384. Both overexpression of miR-384 and knocking down of Beclin-1 significantly inhibited I/R-induced autophagy, accompanied by the activation of PI3K/Akt pathway, thus enhanced the protective effect of EGCG. However, these functions were abrogated by the PI3K inhibitor, LY294002. Conclusion We confirmed that EGCG has a protective role in microRNA-384-mediated autophagy by targeting Beclin-1 via activating the PI3K/Akt signaling pathway. Our results unveiled a novel role of EGCG in myocardial protection, involving posttranscriptional regulation with miRNA-384.
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Affiliation(s)
- Chan Zhang
- Department of Pharmacology, Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
| | - Ronggan Liang
- Department of Pharmacology, Guilin Medical University, Guilin, Guangxi, People's Republic of China
| | - Xiaowen Gan
- Department of Pharmacology, Guilin Medical University, Guilin, Guangxi, People's Republic of China
| | - Xiufang Yang
- Department of Pharmacology, Guilin Medical University, Guilin, Guangxi, People's Republic of China
| | - LingLin Chen
- Department of Pharmacology, Guilin Medical University, Guilin, Guangxi, People's Republic of China
| | - Jie Jian
- Department of Pharmacology, Guilin Medical University, Guilin, Guangxi, People's Republic of China
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100
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Wo Q, Zhang D, Hu L, Lyu J, Xiang F, Zheng W, Shou J, Qi X. Long noncoding RNA SOX2-OT facilitates prostate cancer cell proliferation and migration via miR-369-3p/CFL2 axis. Biochem Biophys Res Commun 2019; 520:586-593. [PMID: 31623830 DOI: 10.1016/j.bbrc.2019.09.108] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Accepted: 09/25/2019] [Indexed: 01/09/2023]
Abstract
Accepted as crucial participators in human malignancies, long noncoding RNAs (lncRNAs) have been proven to exert significant function on the complicated processes of cancer progression. Although existing investigations have revealed the oncogenic role of lncRNA SOX2 overlapping transcript (SOX2-OT) in different kinds of cancers, such as osteosarcoma and cholangiocarcinoma, the potential role of it in prostate cancer (PC) is poorly understood. This study was the first attempt to decipher the underlying regulatory mechanism of SOX2-OT in PC. According to the data from this study, SOX2-OT expression was conspicuously elevated in PC tissues and cells. Silenced SOX2-OT could repress PC cell proliferation and migration. Besides, mechanism assays manifested that SOX2-OT bound with miR-369-3p and negatively correlated with miR-369-3p in PC. Additionally, miR-369-3p was confirmed to elicit suppressive impact on PC progression. What's more, cofilin 2 (CFL2) was testified to be a downstream target gene of miR-369-3p. Final rescue tests uncovered that CFL2 upregulation or miR-369-3p inhibition could largely restore SOX2-OT knockdown-mediated function on PC progression. To sum up, SOX2-OT accelerates cell proliferation and migration by targeting miR-369-3p/CFL2 axis in PC.
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Affiliation(s)
- Qijun Wo
- Department of Urology, Zhejiang Provincial People's Hospital, Hangzhou, 310014, Zhejiang, China; Department of Urology, People's Hospital of Hangzhou Medical College, Hangzhou, 310014, Zhejiang, China
| | - Dahong Zhang
- Department of Urology, Zhejiang Provincial People's Hospital, Hangzhou, 310014, Zhejiang, China; Department of Urology, People's Hospital of Hangzhou Medical College, Hangzhou, 310014, Zhejiang, China.
| | - Linyi Hu
- Department of Urology, Zhejiang Provincial People's Hospital, Hangzhou, 310014, Zhejiang, China; Department of Urology, People's Hospital of Hangzhou Medical College, Hangzhou, 310014, Zhejiang, China
| | - Jia Lyu
- Department of Urology, Zhejiang Provincial People's Hospital, Hangzhou, 310014, Zhejiang, China; Department of Urology, People's Hospital of Hangzhou Medical College, Hangzhou, 310014, Zhejiang, China
| | - Fei Xiang
- Department of Urology, Zhejiang Provincial People's Hospital, Hangzhou, 310014, Zhejiang, China; Department of Urology, People's Hospital of Hangzhou Medical College, Hangzhou, 310014, Zhejiang, China
| | - Wei Zheng
- Department of Urology, Zhejiang Provincial People's Hospital, Hangzhou, 310014, Zhejiang, China; Department of Urology, People's Hospital of Hangzhou Medical College, Hangzhou, 310014, Zhejiang, China
| | - Jiafeng Shou
- Department of Urology, Zhejiang Provincial People's Hospital, Hangzhou, 310014, Zhejiang, China; Department of Urology, People's Hospital of Hangzhou Medical College, Hangzhou, 310014, Zhejiang, China
| | - Xiaolong Qi
- Department of Urology, Zhejiang Provincial People's Hospital, Hangzhou, 310014, Zhejiang, China; Department of Urology, People's Hospital of Hangzhou Medical College, Hangzhou, 310014, Zhejiang, China
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