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Huang P, Wen F, Li Y, Li Q. The tale of SOX2: Focusing on lncRNA regulation in cancer progression and therapy. Life Sci 2024; 344:122576. [PMID: 38492918 DOI: 10.1016/j.lfs.2024.122576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Revised: 03/06/2024] [Accepted: 03/13/2024] [Indexed: 03/18/2024]
Abstract
Long non-coding RNAs (lncRNAs) have emerged as influential contributors to diverse cellular processes, which regulate gene function and expression via multiple mechanistic pathways. Therefore, it is essential to exploit the structures and interactions of lncRNAs to comprehend their mechanistic functions within cells. A growing body of evidence has revealed that deregulated lncRNAs are involved in multiple regulations of malignant events including cell proliferation, growth, invasion, and metabolism. SRY-related high mobility group box (SOX)2, a well-recognized member of the SOX family, is commonly overexpressed in various types of cancer, contributing to tumor progression and maintenance of stemness. Emerging studies have shown that lncRNAs interact with SOX2 to remarkably contribute to carcinogenesis and disease states. This review elaborates on the crosstalk between the intricate and complicated functions of lncRNAs and SOX2 in the context of malignant diseases. We elucidate distinct molecular mechanisms that contribute to the onset/advancement of cancer, indicating that lncRNAs/SOX2 axes hold immense promise for potential therapeutic targets. Furthermore, we delve into the modalities of emerging feasible treatment options for targeting lncRNAs, highlighting the limitations of such therapies and providing novel insights into further ameliorations of targeted strategies of lncRNAs to promote the clinical implications. Translating current discoveries into clinical applications could ultimately boost improved survival and prognosis of cancer patients.
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Affiliation(s)
- Peng Huang
- Division of Abdominal Tumor Multimodality Treatment, Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China; Department of Medical Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Feng Wen
- Division of Abdominal Tumor Multimodality Treatment, Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China; Department of Radiation Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - YiShan Li
- Thoracic Oncology Ward, Cancer Center, West China Hospital, Sichuan University, West China School of Nursing, Chengdu, Sichuan 610041, China
| | - Qiu Li
- Division of Abdominal Tumor Multimodality Treatment, Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China; Department of Medical Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China.
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2
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Su Y, Liu J, Wu Q, Gao Z, Wang J, Li H, Zheng C. AMPFLDAP: Adaptive Message Passing and Feature Fusion on Heterogeneous Network for LncRNA-Disease Associations Prediction. Interdiscip Sci 2024:10.1007/s12539-024-00610-5. [PMID: 38581626 DOI: 10.1007/s12539-024-00610-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 01/03/2024] [Accepted: 01/03/2024] [Indexed: 04/08/2024]
Abstract
Exploration of the intricate connections between long noncoding RNA (lncRNA) and diseases, referred to as lncRNA-disease associations (LDAs), plays a pivotal and indispensable role in unraveling the underlying molecular mechanisms of diseases and devising practical treatment approaches. It is imperative to employ computational methods for predicting lncRNA-disease associations to circumvent the need for superfluous experimental endeavors. Graph-based learning models have gained substantial popularity in predicting these associations, primarily because of their capacity to leverage node attributes and relationships within the network. Nevertheless, there remains much room for enhancing the performance of these techniques by incorporating and harmonizing the node attributes more effectively. In this context, we introduce a novel model, i.e., Adaptive Message Passing and Feature Fusion (AMPFLDAP), for forecasting lncRNA-disease associations within a heterogeneous network. Firstly, we constructed a heterogeneous network involving lncRNA, microRNA (miRNA), and diseases based on established associations and employing Gaussian interaction profile kernel similarity as a measure. Then, an adaptive topological message passing mechanism is suggested to address the information aggregation for heterogeneous networks. The topological features of nodes in the heterogeneous network were extracted based on the adaptive topological message passing mechanism. Moreover, an attention mechanism is applied to integrate both topological and semantic information to achieve the multimodal features of biomolecules, which are further used to predict potential LDAs. The experimental results demonstrated that the performance of the proposed AMPFLDAP is superior to seven state-of-the-art methods. Furthermore, to validate its efficacy in practical scenarios, we conducted detailed case studies involving three distinct diseases, which conclusively demonstrated AMPFLDAP's effectiveness in the prediction of LDAs.
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Affiliation(s)
- Yansen Su
- Key Laboratory of Intelligent Computing and Signal Processing, Anhui University, 111 Jiulong Road, Hefei, 230601, Anhui, China.
| | - Jingjing Liu
- Institute of Artificial Intelligence, Hefei Comprehensive National Science Center, 5089 Wangjiang West Road, Hefei, 230088, Anhui, China
| | - Qingwen Wu
- Institute of Artificial Intelligence, Hefei Comprehensive National Science Center, 5089 Wangjiang West Road, Hefei, 230088, Anhui, China
| | - Zhen Gao
- Institute of Artificial Intelligence, Hefei Comprehensive National Science Center, 5089 Wangjiang West Road, Hefei, 230088, Anhui, China
| | - Jing Wang
- Key Laboratory of Intelligent Computing and Signal Processing, Anhui University, 111 Jiulong Road, Hefei, 230601, Anhui, China
- Institute of Artificial Intelligence, Hefei Comprehensive National Science Center, 5089 Wangjiang West Road, Hefei, 230088, Anhui, China
| | - Haitao Li
- Key Laboratory of Intelligent Computing and Signal Processing, Anhui University, 111 Jiulong Road, Hefei, 230601, Anhui, China
| | - Chunhou Zheng
- Key Laboratory of Intelligent Computing and Signal Processing, Anhui University, 111 Jiulong Road, Hefei, 230601, Anhui, China
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Liao X, Wei R, Zhou J, Wu K, Li J. Emerging roles of long non-coding RNAs in osteosarcoma. Front Mol Biosci 2024; 11:1327459. [PMID: 38516191 PMCID: PMC10955361 DOI: 10.3389/fmolb.2024.1327459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Accepted: 02/12/2024] [Indexed: 03/23/2024] Open
Abstract
Osteosarcoma (OS) is a highly aggressive and lethal malignant bone tumor that primarily afflicts children, adolescents, and young adults. However, the molecular mechanisms underlying OS pathogenesis remain obscure. Mounting evidence implicates dysregulated long non-coding RNAs (lncRNAs) in tumorigenesis and progression. These lncRNAs play a pivotal role in modulating gene expression at diverse epigenetic, transcriptional, and post-transcriptional levels. Uncovering the roles of aberrant lncRNAs would provide new insights into OS pathogenesis and novel tools for its early diagnosis and treatment. In this review, we summarize the significance of lncRNAs in controlling signaling pathways implicated in OS development, including the Wnt/β-catenin, PI3K/AKT/mTOR, NF-κB, Notch, Hippo, and HIF-1α. Moreover, we discuss the multifaceted contributions of lncRNAs to drug resistance in OS, as well as their potential to serve as biomarkers and therapeutic targets. This review aims to encourage further research into lncRNA field and the development of more effective therapeutic strategies for patients with OS.
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Affiliation(s)
- Xun Liao
- Frontiers Medical Center, Tianfu Jincheng Laboratory, Chengdu, Sichuan, China
| | - Rong Wei
- Laboratory of Molecular Oncology, Frontiers Science Center for Disease-related Molecular Network, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Junxiu Zhou
- Frontiers Medical Center, Tianfu Jincheng Laboratory, Chengdu, Sichuan, China
| | - Ke Wu
- Laboratory of Molecular Oncology, Frontiers Science Center for Disease-related Molecular Network, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Jiao Li
- Laboratory of Molecular Oncology, Frontiers Science Center for Disease-related Molecular Network, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, China
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4
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Wang D, Zhao X, Li S, Guo H, Li S, Yu D. The impact of LncRNA-SOX2-OT/let-7c-3p/SKP2 Axis on head and neck squamous cell carcinoma progression: Insights from bioinformatics analysis and experimental validation. Cell Signal 2024; 115:111018. [PMID: 38110167 DOI: 10.1016/j.cellsig.2023.111018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 12/01/2023] [Accepted: 12/15/2023] [Indexed: 12/20/2023]
Abstract
BACKGROUND LncRNA SRY-box transcription factor 2 overlapping transcript (SOX2-OT) is linked to multiple cancers, but its specific role and mechanism in head and neck squamous cell carcinoma (HNSCC) remain poorly understood. METHODS We harnessed clinical data and HNSCC transcriptome profiles from UCSC Xena, TCGA, and GEO databases. Employing various algorithms, we assessed the correlation between SOX2-OT expression and the HNSCC immune microenvironment. Differential expression analysis identified immune-enriched miRNAs (DEmiRNAs) and mRNAs (DEmRNAs). Utilizing miRanda, miRWalk, and Cytoscape, we constructed a ceRNA network encompassing SOX2-OT, DEmiRNAs, and DEmRNAs. A Sankey diagram visualized pivotal SOX2-OT-miRNA-mRNA-pathways. Functional assays validated SOX2-OT silencing effects in HNSCC cells. Luciferase reporter assays verified SOX2-OT/let-7c-3p/SKP2 relationships. Additionally, a xenograft mouse model revealed SOX2-OT's impact on xenograft growth and lung metastasis. RESULTS SOX2-OT expression demonstrated a predominantly positive correlation with B lineage and VTCN1, while manifesting a negative correlation with Neutrophil and CD47 in HNSCC tissues. We discerned a ceRNA network comprising 65 DEmiRNAs and 116 DEmRNAs, while a protein-protein interaction (PPI) network revealed 97 protein nodes among DEmRNAs. Notably, the Sankey diagram spotlighted six key DEmRNAs intricately linked to the SOX2-OT-regulated DEmiRNAs immune-related pathway. Experimental assays established that SOX2-OT silencing exerted inhibitory effects on cell proliferation, migration, tumor growth, and lung metastasis within HNSCC cells, both in vitro and in vivo. We identified let-7c-3p as a target miRNA of SOX2-OT and SKP2 as a target mRNA of let-7c-3p. CONCLUSIONS Our study establishes the critical SOX2-OT/let-7c-3p/SKP2 axis as a pivotal regulator of HNSCC tumorigenesis and metastasis.
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Affiliation(s)
- Di Wang
- Department of Otolaryngology Head and Neck Surgery, The Second Hospital of Jilin University, People's Republic of China
| | - Xue Zhao
- Department of Otolaryngology Head and Neck Surgery, The Second Hospital of Jilin University, People's Republic of China
| | - Shuang Li
- Department of Otolaryngology Head and Neck Surgery, The Second Hospital of Jilin University, People's Republic of China
| | - Haixian Guo
- Department of Otolaryngology Head and Neck Surgery, The Second Hospital of Jilin University, People's Republic of China
| | - Shaonan Li
- Department of Otolaryngology Head and Neck Surgery, The Second Hospital of Jilin University, People's Republic of China
| | - Dan Yu
- Department of Otolaryngology Head and Neck Surgery, The Second Hospital of Jilin University, People's Republic of China.
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Cheng D, Wang B, Wu L, Chen R, Zhao W, Fang C, Ji M. Exosomal non-coding RNAs-mediated EGFR-TKIs resistance in NSCLC with EGFR mutation. Med Oncol 2023; 40:254. [PMID: 37505345 DOI: 10.1007/s12032-023-02125-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Accepted: 07/12/2023] [Indexed: 07/29/2023]
Abstract
Lung cancer is the leading cause of cancer-related mortality worldwide. The advent of epidermal growth factor receptor tyrosine kinase inhibitors (EGFR-TKIs) has significantly improved survival rates of patients with EGFR-mutant non-small cell lung cancer (NSCLC). However, as with other antitumor drugs, resistance to EGFR-TKIs is inevitably develops over time. Exosomes, extracellular vesicles with a 30-150 nm diameter, have emerged as vital mediators of intercellular communication. Recent studies revealed that exosomes carry non-coding RNAs (ncRNAs), including circular RNA (circRNA), microRNA (miRNA), and long noncoding RNA (lncRNA), which contribute to the development of EGFR-TKIs resistance. This review provides a comprehensive overview of the current research on exosomal ncRNAs mediating EGFR-TKIs resistance in EGFR-mutated NSCLC. In the future, detecting exosome ncRNAs can be used to monitor targeted therapy for NSCLC. Meanwhile, developing therapeutic regimens targeting these resistance mechanisms may provide additional clinical benefits to patients with EGFR-mutated NSCLC.
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Affiliation(s)
- Daoan Cheng
- Departments of Oncology, The Third Affiliated Hospital of Soochow University, Changzhou, 213004, China
| | - Banglu Wang
- Departments of Oncology, The Third Affiliated Hospital of Soochow University, Changzhou, 213004, China
| | - Lige Wu
- Departments of Oncology, The Third Affiliated Hospital of Soochow University, Changzhou, 213004, China
| | - Rui Chen
- Departments of Oncology, The Third Affiliated Hospital of Soochow University, Changzhou, 213004, China
| | - Weiqing Zhao
- Departments of Oncology, The Third Affiliated Hospital of Soochow University, Changzhou, 213004, China
| | - Cheng Fang
- Departments of Oncology, The Third Affiliated Hospital of Soochow University, Changzhou, 213004, China.
| | - Mei Ji
- Departments of Oncology, The Third Affiliated Hospital of Soochow University, Changzhou, 213004, China.
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Batista da Silva I, Aciole Barbosa D, Kavalco KF, Nunes LR, Pasa R, Menegidio FB. Discovery of putative long non-coding RNAs expressed in the eyes of Astyanax mexicanus (Actinopterygii: Characidae). Sci Rep 2023; 13:12051. [PMID: 37491348 PMCID: PMC10368750 DOI: 10.1038/s41598-023-34198-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Accepted: 04/25/2023] [Indexed: 07/27/2023] Open
Abstract
Astyanax mexicanus is a well-known model species, that has two morphotypes, cavefish, from subterranean rivers and surface fish, from surface rivers. They are morphologically distinct due to many troglomorphic traits in the cavefish, such as the absence of eyes. Most studies on A. mexicanus are focused on eye development and protein-coding genes involved in the process. However, lncRNAs did not get the same attention and very little is known about them. This study aimed to fill this knowledge gap, identifying, describing, classifying, and annotating lncRNAs expressed in the embryo's eye tissue of cavefish and surface fish. To do so, we constructed a concise workflow to assemble and evaluate transcriptomes, annotate protein-coding genes, ncRNAs families, predict the coding potential, identify putative lncRNAs, map them and predict interactions. This approach resulted in the identification of 33,069 and 19,493 putative lncRNAs respectively mapped in cavefish and surface fish. Thousands of these lncRNAs were annotated and identified as conserved in human and several species of fish. Hundreds of them were validated in silico, through ESTs. We identified lncRNAs associated with genes related to eye development. This is the case of a few lncRNAs associated with sox2, which we suggest being isomorphs of the SOX2-OT, a lncRNA that can regulate the expression of sox2. This work is one of the first studies to focus on the description of lncRNAs in A. mexicanus, highlighting several lncRNA targets and opening an important precedent for future studies focusing on lncRNAs expressed in A. mexicanus.
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Affiliation(s)
- Iuri Batista da Silva
- Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, MG, 31270-901, Brazil
- Laboratory of Ecological and Evolutionary Genetics, Institute of Biological and Health Sciences, Federal University of Viçosa Campus Rio Paranaíba, Rio Paranaíba, MG, 38810-000, Brazil
| | - David Aciole Barbosa
- Integrated Biotechnology Center, University of Mogi das Cruzes (UMC), Av. Dr. Cândido X. de Almeida and Souza, 200 - Centro Cívico, Mogi das Cruzes, SP, 08780-911, Brazil
| | - Karine Frehner Kavalco
- Laboratory of Ecological and Evolutionary Genetics, Institute of Biological and Health Sciences, Federal University of Viçosa Campus Rio Paranaíba, Rio Paranaíba, MG, 38810-000, Brazil
| | - Luiz R Nunes
- Center for Natural and Human Sciences, Federal University of ABC, São Bernardo do Campo, SP, 09606-045, Brazil
| | - Rubens Pasa
- Laboratory of Ecological and Evolutionary Genetics, Institute of Biological and Health Sciences, Federal University of Viçosa Campus Rio Paranaíba, Rio Paranaíba, MG, 38810-000, Brazil.
| | - Fabiano B Menegidio
- Integrated Biotechnology Center, University of Mogi das Cruzes (UMC), Av. Dr. Cândido X. de Almeida and Souza, 200 - Centro Cívico, Mogi das Cruzes, SP, 08780-911, Brazil.
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Chico MA, Mesas C, Doello K, Quiñonero F, Perazzoli G, Ortiz R, Prados J, Melguizo C. Cancer Stem Cells in Sarcomas: In Vitro Isolation and Role as Prognostic Markers: A Systematic Review. Cancers (Basel) 2023; 15:cancers15092449. [PMID: 37173919 PMCID: PMC10177331 DOI: 10.3390/cancers15092449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 04/19/2023] [Accepted: 04/22/2023] [Indexed: 05/15/2023] Open
Abstract
Sarcomas are a diverse group of neoplasms with an incidence rate of 15% of childhood cancers. They exhibit a high tendency to develop early metastases and are often resistant to available treatments, resulting in poor prognosis and survival. In this context, cancer stem cells (CSCs) have been implicated in recurrence, metastasis, and drug resistance, making the search for diagnostic and prognostic biomarkers of the disease crucial. The objective of this systematic review was to analyze the expression of CSC biomarkers both after isolation from in vitro cell lines and from the complete cell population of patient tumor samples. A total of 228 publications from January 2011 to June 2021 was retrieved from different databases, of which 35 articles were included for analysis. The studies demonstrated significant heterogeneity in both the markers detected and the CSC isolation techniques used. ALDH was identified as a common marker in various types of sarcomas. In conclusion, the identification of CSC markers in sarcomas may facilitate the development of personalized medicine and improve treatment outcomes.
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Affiliation(s)
- Maria Angeles Chico
- Institute of Biopathology and Regenerative Medicine (IBIMER), Center of Biomedical Research (CIBM), University of Granada, 18100 Granada, Spain
- Instituto Biosanitario de Granada (ibs. GRANADA), 18014 Granada, Spain
- Department of Anatomy and Embryology, Faculty of Medicine, University of Granada, 18071 Granada, Spain
| | - Cristina Mesas
- Instituto Biosanitario de Granada (ibs. GRANADA), 18014 Granada, Spain
- Department of Anatomy and Embryology, Faculty of Medicine, University of Granada, 18071 Granada, Spain
| | - Kevin Doello
- Instituto Biosanitario de Granada (ibs. GRANADA), 18014 Granada, Spain
- Medical Oncology Service, Hospital Universitario Virgen de las Nieves, 18014 Granada, Spain
| | - Francisco Quiñonero
- Instituto Biosanitario de Granada (ibs. GRANADA), 18014 Granada, Spain
- Department of Anatomy and Embryology, Faculty of Medicine, University of Granada, 18071 Granada, Spain
- Medical Oncology Service, Hospital Universitario Virgen de las Nieves, 18014 Granada, Spain
| | - Gloria Perazzoli
- Institute of Biopathology and Regenerative Medicine (IBIMER), Center of Biomedical Research (CIBM), University of Granada, 18100 Granada, Spain
- Instituto Biosanitario de Granada (ibs. GRANADA), 18014 Granada, Spain
- Department of Anatomy and Embryology, Faculty of Medicine, University of Granada, 18071 Granada, Spain
- Department of Medicine, Faculty of Health Sciences, University of Almería, 04120 Granada, Spain
| | - Raul Ortiz
- Institute of Biopathology and Regenerative Medicine (IBIMER), Center of Biomedical Research (CIBM), University of Granada, 18100 Granada, Spain
- Instituto Biosanitario de Granada (ibs. GRANADA), 18014 Granada, Spain
- Department of Anatomy and Embryology, Faculty of Medicine, University of Granada, 18071 Granada, Spain
| | - Jose Prados
- Instituto Biosanitario de Granada (ibs. GRANADA), 18014 Granada, Spain
- Department of Anatomy and Embryology, Faculty of Medicine, University of Granada, 18071 Granada, Spain
- Medical Oncology Service, Hospital Universitario Virgen de las Nieves, 18014 Granada, Spain
| | - Consolacion Melguizo
- Instituto Biosanitario de Granada (ibs. GRANADA), 18014 Granada, Spain
- Department of Anatomy and Embryology, Faculty of Medicine, University of Granada, 18071 Granada, Spain
- Medical Oncology Service, Hospital Universitario Virgen de las Nieves, 18014 Granada, Spain
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Stevanovic M, Kovacevic-Grujicic N, Petrovic I, Drakulic D, Milivojevic M, Mojsin M. Crosstalk between SOX Genes and Long Non-Coding RNAs in Glioblastoma. Int J Mol Sci 2023; 24:ijms24076392. [PMID: 37047365 PMCID: PMC10094781 DOI: 10.3390/ijms24076392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 03/17/2023] [Accepted: 03/23/2023] [Indexed: 03/31/2023] Open
Abstract
Glioblastoma (GBM) continues to be the most devastating primary brain malignancy. Despite significant advancements in understanding basic GBM biology and enormous efforts in developing new therapeutic approaches, the prognosis for most GBM patients remains poor with a median survival time of 15 months. Recently, the interplay between the SOX (SRY-related HMG-box) genes and lncRNAs (long non-coding RNAs) has become the focus of GBM research. Both classes of molecules have an aberrant expression in GBM and play essential roles in tumor initiation, progression, therapy resistance, and recurrence. In GBM, SOX and lncRNAs crosstalk through numerous functional axes, some of which are part of the complex transcriptional and epigenetic regulatory mechanisms. This review provides a systematic summary of current literature data on the complex interplay between SOX genes and lncRNAs and represents an effort to underscore the effects of SOX/lncRNA crosstalk on the malignant properties of GBM cells. Furthermore, we highlight the significance of this crosstalk in searching for new biomarkers and therapeutic approaches in GBM treatment.
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9
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Gong J, Du C, Sun N, Xiao X, Wu H. CircADSS contributes to hepatocellular carcinoma development by regulating miR-431-5p/TOP2A. Clin Exp Pharmacol Physiol 2023; 50:415-424. [PMID: 36786410 DOI: 10.1111/1440-1681.13761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 01/09/2023] [Accepted: 02/07/2023] [Indexed: 02/15/2023]
Abstract
CircRNAs participated in regulating hepatocellular carcinoma (HCC), and the regulation function of circRNA adenylosuccinate synthase (circADSS) on HCC development is not clear. RT-qPCR and western blot were performed to detect RNA expression. Cell proliferation was analysed by CCK-8 and EdU assay. Cell cycle distribution was analysed by flow cytometry assay. Cell migration and invasion were measured by transwell assay. Mechanism assays were employed to examine the interaction between miR-431-5p and circADSS, or TOP2A. Xenograft mouse model was constructed for in vivo assay. CircADSS and TOP2A expression were boosted, while miR-431-5p was limited in tumour tissues and cells. CircADSS silencing decreased HCC cell proliferation, cell cycle progression, migration, invasion, as well as EMT. MiR-431-5p inhibitors or ectopic TOP2A expression could restore the effect of circADSS knockdown on HCC progression. There was target relationship between miR-431-5p and circADSS, or TOP2A. Knockdown of circADSS suppressed tumour growth in vivo. CircADSS could regulate HCC cell malignancy by miR-431-5p/TOP2A axis.
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Affiliation(s)
- Jianzhuang Gong
- Department of Digestive Medicine, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, China
| | - Chenxu Du
- Department of Clinical Laboratory, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, China
| | - Nai Sun
- Department of Anesthesiology, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, China
| | - Xingguo Xiao
- Department of Digestive Medicine, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, China
| | - Huili Wu
- Department of Digestive Medicine, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, China
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10
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The Role of Tumor Microenvironment in Regulating the Plasticity of Osteosarcoma Cells. Int J Mol Sci 2022; 23:ijms232416155. [PMID: 36555795 PMCID: PMC9788144 DOI: 10.3390/ijms232416155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 12/07/2022] [Accepted: 12/15/2022] [Indexed: 12/23/2022] Open
Abstract
Osteosarcoma (OS) is a malignancy that is becoming increasingly common in adolescents. OS stem cells (OSCs) form a dynamic subset of OS cells that are responsible for malignant progression and chemoradiotherapy resistance. The unique properties of OSCs, including self-renewal, multilineage differentiation and metastatic potential, 149 depend closely on their tumor microenvironment. In recent years, the likelihood of its dynamic plasticity has been extensively studied. Importantly, the tumor microenvironment appears to act as the main regulatory component of OS cell plasticity. For these reasons aforementioned, novel strategies for OS treatment focusing on modulating OS cell plasticity and the possibility of modulating the composition of the tumor microenvironment are currently being explored. In this paper, we review recent studies describing the phenomenon of OSCs and factors known to influence phenotypic plasticity. The microenvironment, which can regulate OSC plasticity, has great potential for clinical exploitation and provides different perspectives for drug and treatment design for OS.
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11
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Xie M, Dai H, Gu Q, Xiao C, Wang H, Lei Y, Wu C, Li X, Lin B, Li S. Identification of genes contributing to cisplatin resistance in osteosarcoma cells. FEBS Open Bio 2022; 13:164-173. [PMID: 36408691 PMCID: PMC9808595 DOI: 10.1002/2211-5463.13524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 11/08/2022] [Accepted: 11/18/2022] [Indexed: 11/22/2022] Open
Abstract
Osteosarcomas are prevalent in children and young adults and have a high recurrence rate. Cisplatin, doxorubicin, and methotrexate are common adjuvant chemotherapy drugs for treatment of osteosarcoma, but multidrug resistance is a growing problem. Therefore, understanding the molecular mechanisms of chemotherapy resistance in osteosarcoma cells is crucial for developing new therapeutic approaches and ultimately improving the prognosis of osteosarcoma patients. To identify genes associated with cisplatin resistance in osteosarcoma, we screened a large-scale mutant library generated by transfecting human osteosarcoma cells with a piggyBac (PB) transposon-based gene activation vector. Several candidate genes were identified by using Splinkerette-PCR paired with Next Generation Sequencing. We created a disease-free survival predictor model, which includes ZNF720, REEP3, CNNM2, and CGREF1, using TARGET (Therapeutically Applicable Research to Generate Effective Treatments) datasets. Additionally, the results of our enrichment analysis between the Four_genes_high group and Low_group suggested that these four genes may participate in cisplatin resistance in osteosarcoma through cross talk between various signaling pathways, especially the signaling pathway related to bone formation. These data may help guide future studies into chemotherapy for osteosarcoma.
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Affiliation(s)
- Mingzhong Xie
- The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical UniversityLuzhouChina
| | - Haoping Dai
- The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical UniversityLuzhouChina
| | - Qingwen Gu
- The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical UniversityLuzhouChina
| | - Changming Xiao
- The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical UniversityLuzhouChina
| | - Haozhong Wang
- The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical UniversityLuzhouChina
| | - Yang Lei
- The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical UniversityLuzhouChina
| | - Chunxiao Wu
- The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical UniversityLuzhouChina
| | - Xuening Li
- The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical UniversityLuzhouChina
| | - Birong Lin
- The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical UniversityLuzhouChina
| | - Sen Li
- The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical UniversityLuzhouChina
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Aryee DNT, Fock V, Kapoor U, Radic-Sarikas B, Kovar H. Zooming in on Long Non-Coding RNAs in Ewing Sarcoma Pathogenesis. Cells 2022; 11:1267. [PMID: 35455947 PMCID: PMC9032025 DOI: 10.3390/cells11081267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 03/29/2022] [Accepted: 04/06/2022] [Indexed: 11/16/2022] Open
Abstract
Ewing sarcoma (ES) is a rare aggressive cancer of bone and soft tissue that is mainly characterized by a reciprocal chromosomal translocation. As a result, about 90% of cases express the EWS-FLI1 fusion protein that has been shown to function as an aberrant transcription factor driving sarcomagenesis. ES is the second most common malignant bone tumor in children and young adults. Current treatment modalities include dose-intensified chemo- and radiotherapy, as well as surgery. Despite these strategies, patients who present with metastasis or relapse still have dismal prognosis, warranting a better understanding of treatment resistant-disease biology in order to generate better prognostic and therapeutic tools. Since the genomes of ES tumors are relatively quiet and stable, exploring the contributions of epigenetic mechanisms in the initiation and progression of the disease becomes inevitable. The search for novel biomarkers and potential therapeutic targets of cancer metastasis and chemotherapeutic drug resistance is increasingly focusing on long non-coding RNAs (lncRNAs). Recent advances in genome analysis by high throughput sequencing have immensely expanded and advanced our knowledge of lncRNAs. They are non-protein coding RNA species with multiple biological functions that have been shown to be dysregulated in many diseases and are emerging as crucial players in cancer development. Understanding the various roles of lncRNAs in tumorigenesis and metastasis would determine eclectic avenues to establish therapeutic and diagnostic targets. In ES, some lncRNAs have been implicated in cell proliferation, migration and invasion, features that make them suitable as relevant biomarkers and therapeutic targets. In this review, we comprehensively discuss known lncRNAs implicated in ES that could serve as potential biomarkers and therapeutic targets of the disease. Though some current reviews have discussed non-coding RNAs in ES, to our knowledge, this is the first review focusing exclusively on ES-associated lncRNAs.
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Affiliation(s)
- Dave N. T. Aryee
- St. Anna Children’s Cancer Research Institute, 1090 Vienna, Austria; (V.F.); (U.K.); (B.R.-S.); (H.K.)
- Department of Pediatrics, Medical University of Vienna, 1090 Vienna, Austria
| | - Valerie Fock
- St. Anna Children’s Cancer Research Institute, 1090 Vienna, Austria; (V.F.); (U.K.); (B.R.-S.); (H.K.)
| | - Utkarsh Kapoor
- St. Anna Children’s Cancer Research Institute, 1090 Vienna, Austria; (V.F.); (U.K.); (B.R.-S.); (H.K.)
| | - Branka Radic-Sarikas
- St. Anna Children’s Cancer Research Institute, 1090 Vienna, Austria; (V.F.); (U.K.); (B.R.-S.); (H.K.)
- Department of Pediatric Surgery, Medical University of Vienna, 1090 Vienna, Austria
| | - Heinrich Kovar
- St. Anna Children’s Cancer Research Institute, 1090 Vienna, Austria; (V.F.); (U.K.); (B.R.-S.); (H.K.)
- Department of Pediatrics, Medical University of Vienna, 1090 Vienna, Austria
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13
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Liu J, Shang G. The Roles of Noncoding RNAs in the Development of Osteosarcoma Stem Cells and Potential Therapeutic Targets. Front Cell Dev Biol 2022; 10:773038. [PMID: 35252166 PMCID: PMC8888953 DOI: 10.3389/fcell.2022.773038] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Accepted: 01/31/2022] [Indexed: 12/11/2022] Open
Abstract
Osteosarcoma (OS) is the common bone tumor in children and adolescents. Because of chemotherapy resistance, the OS patients have a poor prognosis. The one reason of chemotherapeutic resistance is the development of cancer stem cells (CSCs). CSCs represent a small portion of tumor cells with the capacity of self-renewal and multipotency, which are associated with tumor initiation, metastasis, recurrence and drug resistance. Recently, noncoding RNAs (ncRNAs) have been reported to critically regulate CSCs. Therefore, in this review article, we described the role of ncRNAs, especially miRNAs, lncRNAs and circRNAs, in regulating CSCs development and potential mechanisms. Specifically, we discussed the role of multiple miRNAs in targeting CSCs, including miR-26a, miR-29b, miR-34a, miR-133a, miR-143, miR-335, miR-382, miR-499a, miR-1247, and let-7days. Moreover, we highlighted the functions of lncRNAs in regulating CSCs in OS, such as B4GALT1-AS1, DANCR, DLX6-AS1, FER1L4, HIF2PUT, LINK-A, MALAT1, SOX2-OT, and THOR. Due to the critical roles of ncRNAs in regulation of OS CSCs, targeting ncRNAs might be a novel strategy for eliminating CSCs for OS therapy.
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Affiliation(s)
- Jinxin Liu
- Department of Orthopedic Surgery, Shengjing Hospital, China Medical University, Shenyang, China
| | - Guanning Shang
- Department of Orthopedic Surgery, Shengjing Hospital, China Medical University, Shenyang, China
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14
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Vuković LD, Chen P, Mishra S, White KH, Gigley JP, Levy DL. Nuclear Transport Factor 2 (NTF2) suppresses WM983B metastatic melanoma by modifying cell migration, metastasis, and gene expression. Sci Rep 2021; 11:23586. [PMID: 34880267 PMCID: PMC8654834 DOI: 10.1038/s41598-021-02803-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 11/23/2021] [Indexed: 12/19/2022] Open
Abstract
While changes in nuclear structure and organization are frequently observed in cancer cells, relatively little is known about how nuclear architecture impacts cancer progression and pathology. To begin to address this question, we studied Nuclear Transport Factor 2 (NTF2) because its levels decrease during melanoma progression. We show that increasing NTF2 expression in WM983B metastatic melanoma cells reduces cell proliferation and motility while increasing apoptosis. We also demonstrate that increasing NTF2 expression in these cells significantly inhibits metastasis and prolongs survival of mice. NTF2 levels affect the expression and nuclear positioning of a number of genes associated with cell proliferation and migration, and increasing NTF2 expression leads to changes in nuclear size, nuclear lamin A levels, and chromatin organization. Thus, ectopic expression of NTF2 in WM983B metastatic melanoma abrogates phenotypes associated with advanced stage cancer both in vitro and in vivo, concomitantly altering nuclear and chromatin structure and generating a gene expression profile with characteristics of primary melanoma. We propose that NTF2 is a melanoma tumor suppressor and could be a novel therapeutic target to improve health outcomes of melanoma patients.
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Affiliation(s)
- Lidija D Vuković
- Department of Molecular Biology, University of Wyoming, 1000 E. University Avenue, Laramie, WY, 82071, USA
| | - Pan Chen
- Department of Molecular Biology, University of Wyoming, 1000 E. University Avenue, Laramie, WY, 82071, USA
| | - Sampada Mishra
- Department of Molecular Biology, University of Wyoming, 1000 E. University Avenue, Laramie, WY, 82071, USA
| | - Karen H White
- Department of Molecular Biology, University of Wyoming, 1000 E. University Avenue, Laramie, WY, 82071, USA
| | - Jason P Gigley
- Department of Molecular Biology, University of Wyoming, 1000 E. University Avenue, Laramie, WY, 82071, USA
| | - Daniel L Levy
- Department of Molecular Biology, University of Wyoming, 1000 E. University Avenue, Laramie, WY, 82071, USA.
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15
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Editing SOX Genes by CRISPR-Cas: Current Insights and Future Perspectives. Int J Mol Sci 2021; 22:ijms222111321. [PMID: 34768751 PMCID: PMC8583549 DOI: 10.3390/ijms222111321] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 10/17/2021] [Accepted: 10/17/2021] [Indexed: 01/16/2023] Open
Abstract
Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR) and its associated proteins (Cas) is an adaptive immune system in archaea and most bacteria. By repurposing these systems for use in eukaryote cells, a substantial revolution has arisen in the genome engineering field. In recent years, CRISPR-Cas technology was rapidly developed and different types of DNA or RNA sequence editors, gene activator or repressor, and epigenome modulators established. The versatility and feasibility of CRISPR-Cas technology has introduced this system as the most suitable tool for discovering and studying the mechanism of specific genes and also for generating appropriate cell and animal models. SOX genes play crucial roles in development processes and stemness. To elucidate the exact roles of SOX factors and their partners in tissue hemostasis and cell regeneration, generating appropriate in vitro and in vivo models is crucial. In line with these premises, CRISPR-Cas technology is a promising tool for studying different family members of SOX transcription factors. In this review, we aim to highlight the importance of CRISPR-Cas and summarize the applications of this novel, promising technology in studying and decoding the function of different members of the SOX gene family.
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16
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Liu Y, Wang D, Ji Q, Yan J. LncRNA MATN1-AS1 for Prediction of Prognosis in Osteosarcoma Patients and Its Cellular Function. Mol Biotechnol 2021; 64:66-74. [PMID: 34542816 DOI: 10.1007/s12033-021-00394-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 09/08/2021] [Indexed: 11/26/2022]
Abstract
Long non-coding RNAs show essential roles in various cancer processes. This study aimed at the expression features, prognosis significance, and biological effect of lnc MATN1-AS1 in osteosarcoma (OS). Five kinds of cell lines and 117 pairs of tissues were analyzed by qRT-PCR for quantification of lnc MATN1-AS1 and miR-1299 level. Clinical data were analyzed using Chi-Square Tests to show the association with lnc MATN1-AS1 level. Kaplan-Meier analysis and Cox regression were used to judge the prognostic value. Cell counting kit-8 and Transwell assay were conducted, respectively, to analyze the effect of lnc MATN1-AS1 on cell proliferation and metastasis. The target miRNA was predicted. lnc MATN1-AS1 level was significantly elevated in OS cells and tissues and related to Enneking staging, lung metastasis, and histologic type. Patients with high lnc MATN1-AS1 level showed a shorter overall survival and recurrence-free survival. Lnc MATN1-AS1 knockdown inhibited OS cell proliferation, migration, and invasion by sponging miR-1299. Lnc MATN1-AS1 has oncogenic features and prognostic significance in OS and is a novel therapeutic strategy for OS.
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Affiliation(s)
- Yongxiang Liu
- Department of Sixth Orthopedics, The 2nd Affiliated Hospital of Harbin Medical University, Harbin, 150000, China
- Department of Orthopedics, Yantai city Yantaishan Hospital, Yantai, 264000, China
| | - Dawei Wang
- Department of Orthopedics, Zhangjiakou First Hospital, Zhangjiakou, 075000, China
| | - Qinghui Ji
- Department of Orthopedics, The First Affiliated Hospital of Jiamusi University, Jiamusi, 154000, China
| | - Jinglong Yan
- Department of Sixth Orthopedics, The 2nd Affiliated Hospital of Harbin Medical University, Harbin, 150000, China.
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17
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Wang H, Hu Q, Tong Y, Li S, Chen M, Wang B, Li H. LncRNA SOX2-OT regulates miR-192-5p/RAB2A axis and ERK pathway to promote glioblastoma cell growth. Cell Cycle 2021; 20:2010-2020. [PMID: 34470582 DOI: 10.1080/15384101.2021.1965722] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Abstract
Glioblastoma (GBM) is the most frequent tumor in the central nervous system. Long non-coding RNAs (lncRNAs) have been widely accepted as essential participators in cancer progression. Nonetheless, the specific role and mechanism of lncRNA SRY-box transcription factor 2 overlapping transcript (SOX2-OT) in GBM have not been studied. We evaluated expression levels of SOX2-OT, miR-192-5p and Ras-related protein Rab-2A (RAB2A) in GBM cells via qRT-PCR. To investigate the roles of SOX2-OT in GBM cells, CCK-8, JC-1, EdU, and western blot assays were performed. The connection among SOX2-OT, miR-192-5p and RAB2A in GBM cells was explored through pull down, luciferase reporter, and RIP assays. Western blot and qRT-PCR were employed to analyze the activity of extracellular-signal-regulated kinase (ERK) signaling pathway. SOX2-OT expression was higher in GBM cell lines than in normal cells. SOX2-OT knockdown repressed proliferation and promoted apoptosis of GBM cells. Mechanism assays revealed that SOX2-OT could sponge miR-192-5p. Moreover, RAB2A was certified to be the target gene of miR-192-5p. Overexpression of RAB2A reversed the repressive function of SOX2-OT knockdown on GBM cell growth. Furthermore, SOX2-OT activated ERK signaling pathway in GBM cells. SOX2-OT regulated miR-192-5p/RAB2A axis and ERK pathway to promote GBM cell growth.
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Affiliation(s)
- Hongcai Wang
- Department of Neurosurgery, Li Hui Li Hospital of Medical Centre of Ningbo, Ningbo, Zhejiang, China
| | - Qinglei Hu
- Department of Neurosurgery, The People's Hospital of Rizhao City, Rizhao, Shandong, China
| | - Yilei Tong
- Department of Internal Medicine, Ningbo Huamei Hospital University of Chinese Academy of Sciences, Ningbo, Zhejiang, China
| | - Shiwei Li
- Department of Neurosurgery, Li Hui Li Hospital of Medical Centre of Ningbo, Ningbo, Zhejiang, China
| | - Maosong Chen
- Department of Neurosurgery, Li Hui Li Hospital of Medical Centre of Ningbo, Ningbo, Zhejiang, China
| | - Boding Wang
- Department of Neurosurgery, Li Hui Li Hospital of Medical Centre of Ningbo, Ningbo, Zhejiang, China
| | - Haimeng Li
- Department of Neurosurgery, Shanghai University of Medicine & Health Sciences Affiliated Zhoupu Hospital, Shanghai, China
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18
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Zhou D, Xia Z, Xie M, Gao Y, Yu Q, He B. Exosomal long non-coding RNA SOX2 overlapping transcript enhances the resistance to EGFR-TKIs in non-small cell lung cancer cell line H1975. Hum Cell 2021; 34:1478-1489. [PMID: 34244990 DOI: 10.1007/s13577-021-00572-6] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 06/21/2021] [Indexed: 12/11/2022]
Abstract
Crosstalk between cancer cells and macrophages plays a crucial role in the development of cancer. In this study, our data showed that M1 macrophages attenuate, while M2 macrophages and tumor-associated macrophages enhance the EGFR-TKIs resistance in non-small cell lung cancer (NSCLC) cell line H1975. Next, long non-coding RNA SOX2 overlapping transcript (SOX2-OT) is highly expressed in NSCLC cells-derived exosomes. NSCLC cells-derived exosomes promote macrophages M2 polarization and inhibit M1 polarization through transferring SOX2-OT to macrophages. Subsequently, our results indicated that NSCLC cells-induced M2-polarized macrophages enhance the EGFR-TKIs resistance in H1975 cells. Furthermore, our data revealed that NSCLC cells-derived exosomes inhibit the expression of miR-627-3p, while promote Smads expression in THP-1 cells. SOX2-OT acts as miR-627-3p sponge to facilitate Smad2, Smad3 and Smad4 expression. Finally, our results indicated that NSCLC cells promote macrophages M2 polarization and suppress M1 polarization through targeting miR-627-3p/Smads signaling pathway by transferring exosomes to THP-1 cells. In conclusion, our data revealed that NSCLC cells promote macrophages M2 polarization through transferring exosomal SOX2-OT, thus to enhance its own EGFR-TKIs resistance. Mechanismly, NSCLC cells-derived exosomal SOX2-OT promotes macrophages M2 polarization via promoting Smads by sponging miR-627-3p. Our data provide a novel therapeutic target for EGFR-TKIs resistance in NSCLC.
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Affiliation(s)
- Dongbo Zhou
- Department of Geriatric, Respiratory Medicine, Xiangya Hospital, Central South University, No. 87 Xiangya Road, Kaifu District, Changsha, 410008, China
- Clinical Research Center for Geriatric Disorders National, Xiangya Hospital, Central South University, No. 87 Xiangya Road, Kaifu District, Changsha, 410008, China
- Xiangya Lung Cancer Center, Xiangya Hospital, Central South University, Changsha, China
| | - Zhi Xia
- Department of Geriatric, Respiratory Medicine, Xiangya Hospital, Central South University, No. 87 Xiangya Road, Kaifu District, Changsha, 410008, China
- Clinical Research Center for Geriatric Disorders National, Xiangya Hospital, Central South University, No. 87 Xiangya Road, Kaifu District, Changsha, 410008, China
| | - Mingxuan Xie
- Department of Geriatric, Respiratory Medicine, Xiangya Hospital, Central South University, No. 87 Xiangya Road, Kaifu District, Changsha, 410008, China
- Clinical Research Center for Geriatric Disorders National, Xiangya Hospital, Central South University, No. 87 Xiangya Road, Kaifu District, Changsha, 410008, China
| | - Ying Gao
- Department of Geriatric, Respiratory Medicine, Xiangya Hospital, Central South University, No. 87 Xiangya Road, Kaifu District, Changsha, 410008, China
- Clinical Research Center for Geriatric Disorders National, Xiangya Hospital, Central South University, No. 87 Xiangya Road, Kaifu District, Changsha, 410008, China
| | - Qiao Yu
- Department of Geriatric, Respiratory Medicine, Xiangya Hospital, Central South University, No. 87 Xiangya Road, Kaifu District, Changsha, 410008, China
- Clinical Research Center for Geriatric Disorders National, Xiangya Hospital, Central South University, No. 87 Xiangya Road, Kaifu District, Changsha, 410008, China
| | - Baimei He
- Department of Geriatric, Respiratory Medicine, Xiangya Hospital, Central South University, No. 87 Xiangya Road, Kaifu District, Changsha, 410008, China.
- Clinical Research Center for Geriatric Disorders National, Xiangya Hospital, Central South University, No. 87 Xiangya Road, Kaifu District, Changsha, 410008, China.
- Xiangya Lung Cancer Center, Xiangya Hospital, Central South University, Changsha, China.
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19
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Wang J, Gong M, Xiong Z, Zhao Y, Xing D. Bioinformatics integrated analysis to investigate candidate biomarkers and associated metabolites in osteosarcoma. J Orthop Surg Res 2021; 16:432. [PMID: 34225733 PMCID: PMC8256509 DOI: 10.1186/s13018-021-02578-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Accepted: 06/24/2021] [Indexed: 01/23/2023] Open
Abstract
BACKGROUND This study hoped to explore the potential biomarkers and associated metabolites during osteosarcoma (OS) progression based on bioinformatics integrated analysis. METHODS Gene expression profiles of GSE28424, including 19 human OS cell lines (OS group) and 4 human normal long bone tissue samples (control group), were downloaded. The differentially expressed genes (DEGs) in OS vs. control were investigated. The enrichment investigation was performed based on DEGs, followed by protein-protein interaction network analysis. Then, the feature genes associated with OS were explored, followed by survival analysis to reveal prognostic genes. The qRT-PCR assay was performed to test the expression of these genes. Finally, the OS-associated metabolites and disease-metabolic network were further investigated. RESULTS Totally, 357 DEGs were revealed between the OS vs. control groups. These DEGs, such as CXCL12, were mainly involved in functions like leukocyte migration. Then, totally, 38 feature genes were explored, of which 8 genes showed significant associations with the survival of patients. High expression of CXCL12, CEBPA, SPARCL1, CAT, TUBA1A, and ALDH1A1 was associated with longer survival time, while high expression of CFLAR and STC2 was associated with poor survival. Finally, a disease-metabolic network was constructed with 25 nodes including two disease-associated metabolites cyclophosphamide and bisphenol A (BPA). BPA showed interactions with multiple prognosis-related genes, such as CXCL12 and STC2. CONCLUSION We identified 8 prognosis-related genes in OS. CXCL12 might participate in OS progression via leukocyte migration function. BPA might be an important metabolite interacting with multiple prognosis-related genes.
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Affiliation(s)
- Jun Wang
- Department of Orthopedics and Trauma, The Second Hospital of Shandong University, No. 247 Beiyuan Street, Jinan, 250033 China
| | - Mingzhi Gong
- Department of Orthopedics and Trauma, The Second Hospital of Shandong University, No. 247 Beiyuan Street, Jinan, 250033 China
| | - Zhenggang Xiong
- Department of Orthopedics and Trauma, The Second Hospital of Shandong University, No. 247 Beiyuan Street, Jinan, 250033 China
| | - Yangyang Zhao
- Department of Orthopedics and Trauma, The Second Hospital of Shandong University, No. 247 Beiyuan Street, Jinan, 250033 China
| | - Deguo Xing
- Department of Orthopedics and Trauma, The Second Hospital of Shandong University, No. 247 Beiyuan Street, Jinan, 250033 China
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Dong DY, Li PY. Identifying SOX2-OT transcript that is responsible for regulating SOX2 in cancer cells and embryonic stem cells. RESEARCH IDEAS AND OUTCOMES 2021. [DOI: 10.3897/rio.7.e69726] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
SOX2 overlapping transcript (SOX2-OT) is an evolutionarily conserved long non-coding RNA (lncRNA) whose intronic region contains the transcript of pluripotency gene SRY-box transcription factor 2 (SOX2). It has been suggested that SOX2-OT can regulate its overlapping gene, SOX2. Studies demonstrated that elevated SOX2-OT promotes SOX2 expression in cancer cells, whereas levels of SOX2-OT are inversely correlated with levels of SOX2 in embryonic stem cells. It is not clear why there is a tremendous discrepancy in the regulation of SOX2 by SOX2-OT in cancer cells and embryonic stem cells. Due to the diversified transcription of the SOX2-OT gene, we hypothesize that differential expression of transcripts of the SOX2-OT gene in cancer cells and embryonic stem cells may contribute to the divergence in the regulatory relationship of SOX2-OT and SOX2. A CRISPR screening platform can be leveraged to systemic evaluate which transcript of the SOX2-OT gene may be responsible for upregulation or downregulation of SOX2 in cancer cells and embryonic stem cells, respectively.
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21
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Herrera‐Solorio AM, Peralta‐Arrieta I, Armas López L, Hernández‐Cigala N, Mendoza Milla C, Ortiz Quintero B, Catalán Cárdenas R, Pineda Villegas P, Rodríguez Villanueva E, Trejo Iriarte CG, Zúñiga J, Arrieta O, Ávila‐Moreno F. LncRNA SOX2-OT regulates AKT/ERK and SOX2/GLI-1 expression, hinders therapy, and worsens clinical prognosis in malignant lung diseases. Mol Oncol 2021; 15:1110-1129. [PMID: 33433063 PMCID: PMC8024737 DOI: 10.1002/1878-0261.12875] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Revised: 10/31/2020] [Accepted: 12/04/2020] [Indexed: 12/17/2022] Open
Abstract
The involvement of LncRNA SOX2-overlapping transcript (SOX2-OT), SOX2, and GLI-1 transcription factors in cancer has been well documented. Nonetheless, it is still unknown whether co-expressed SOX2-OT/SOX2 or SOX2-OT/SOX2/GLI-1 axes are epigenetically/transcriptionally involved in terms of resistance to oncology therapy and in poorer clinical outcomes for patients with lung cancer. We evaluated the role of SOX2-OT/SOX2 and SOX2-OT/SOX2/GLI-1 axes using RT-qPCR, western blot, immunofluorescence analyses, gene silencing, cellular cytotoxic, and ChIP-qPCR assays on human cell lines, solid lung malignant tumors, and normal lung tissue. We detected that the SOX2-OT/SOX2/GLI-1 axis promotes resistance to tyrosine kinase inhibitor (TKI)-erlotinib and cisplatin-based therapy. Evidence from this study show that SOX2-OT modulates the expression/activation of EGFR-pathway members AKT/ERK. Further, both SOX2-OT and GLI-1 genes are epigenetically regulated at their promoter sequences, in an LncRNA SOX2-OT-dependent manner, mainly through modifying the enrichment of the activation histone mark H3K4me3/H3K27Ac, versus the repressive histone mark H3K9me3/H3K27me3. In addition, we identified that inhibition of SOX2-OT and reduced expression of SOX2/GLI-1 sensitizes lung cancer cells to EGFR/TKI-erlotinib or cisplatin-based treatment. Finally, we show that high co-expression of SOX2-OT/SOX2 transcripts and SOX2/GLI-1 proteins appears to correlate with a poor clinical prognosis and lung malignant phenotype. Collectively, these results present evidence that LncRNA SOX2-OT modulates an orchestrated resistance mechanism, promoting poor prognosis and human lung malignancy through genetic, epigenetic, and post-translational mechanisms.
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Affiliation(s)
- Abril Marcela Herrera‐Solorio
- Biomedicine Research Unit (UBIMED)Lung Diseases and Cancer Epigenomics LaboratoryFacultad de Estudios Superiores (FES) IztacalaNational Autonomous University of Mexico (UNAM)Tlalnepantla de BazMexico
| | - Irlanda Peralta‐Arrieta
- Biomedicine Research Unit (UBIMED)Lung Diseases and Cancer Epigenomics LaboratoryFacultad de Estudios Superiores (FES) IztacalaNational Autonomous University of Mexico (UNAM)Tlalnepantla de BazMexico
| | - Leonel Armas López
- Biomedicine Research Unit (UBIMED)Lung Diseases and Cancer Epigenomics LaboratoryFacultad de Estudios Superiores (FES) IztacalaNational Autonomous University of Mexico (UNAM)Tlalnepantla de BazMexico
| | - Nallely Hernández‐Cigala
- Biomedicine Research Unit (UBIMED)Lung Diseases and Cancer Epigenomics LaboratoryFacultad de Estudios Superiores (FES) IztacalaNational Autonomous University of Mexico (UNAM)Tlalnepantla de BazMexico
| | - Criselda Mendoza Milla
- National Institute of Respiratory Diseases (INER), Ismael Cosío VillegasMexico CityMexico
| | - Blanca Ortiz Quintero
- National Institute of Respiratory Diseases (INER), Ismael Cosío VillegasMexico CityMexico
| | - Rodrigo Catalán Cárdenas
- Thoracic Oncology UnitLaboratory of Personalized MedicineInstituto Nacional de Cancerología (INCAN)Mexico CityMexico
| | - Priscila Pineda Villegas
- Biomedicine Research Unit (UBIMED)Lung Diseases and Cancer Epigenomics LaboratoryFacultad de Estudios Superiores (FES) IztacalaNational Autonomous University of Mexico (UNAM)Tlalnepantla de BazMexico
| | - Evelyn Rodríguez Villanueva
- Grupo de Investigación en Células Troncales e Ingeniería de Tejidos (GICTIT)Laboratorio de Investigación en Odontología AlmarazFES‐IztacalaNational Autonomous University of México (UNAM)Tlalnepantla de BazMexico
| | - Cynthia G. Trejo Iriarte
- Grupo de Investigación en Células Troncales e Ingeniería de Tejidos (GICTIT)Laboratorio de Investigación en Odontología AlmarazFES‐IztacalaNational Autonomous University of México (UNAM)Tlalnepantla de BazMexico
| | - Joaquín Zúñiga
- National Institute of Respiratory Diseases (INER), Ismael Cosío VillegasMexico CityMexico
| | - Oscar Arrieta
- Thoracic Oncology UnitLaboratory of Personalized MedicineInstituto Nacional de Cancerología (INCAN)Mexico CityMexico
| | - Federico Ávila‐Moreno
- Biomedicine Research Unit (UBIMED)Lung Diseases and Cancer Epigenomics LaboratoryFacultad de Estudios Superiores (FES) IztacalaNational Autonomous University of Mexico (UNAM)Tlalnepantla de BazMexico
- National Institute of Respiratory Diseases (INER), Ismael Cosío VillegasMexico CityMexico
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22
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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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Diagnostic and Prognostic Value of Long Noncoding RNAs as Potential Novel Biomarkers in Intrahepatic Cholestasis of Pregnancy. BIOMED RESEARCH INTERNATIONAL 2021; 2021:8858326. [PMID: 33728343 PMCID: PMC7936904 DOI: 10.1155/2021/8858326] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 01/22/2021] [Accepted: 02/04/2021] [Indexed: 11/17/2022]
Abstract
Long noncoding RNAs (lncRNAs) are a class of important regulators participating in various pathological processes. Until now, the role of lncRNAs in the occurrence and development of intrahepatic cholestasis of pregnancy (ICP) has rarely been investigated. The data from microarray screening revealed 58 upregulated and 85 downregulated lncRNAs and 47 upregulated and 71 downregulated mRNAs in ICP patients compared to healthy controls. Bioinformatics analysis revealed biological processes focused on lipid metabolism, apoptosis, cell cycle, cell differentiation, and oxidative stress. Furthermore, the expressions of three lncRNAs (ENST00000505175.1, ASO3480, and ENST00000449605.1) chosen for verification were significantly decreased and showed the diagnostic and prognostic value for ICP based on ROC analysis. This is the first study to report the specific role of lncRNAs in ICP, which may be helpful for the diagnosis and prognosis of ICP clinically.
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Tu J, Ma L, Zhang M, Zhang J. Long Non-Coding RNA SOX2 Overlapping Transcript Aggravates H9c2 Cell Injury via the miR-215-5p/ZEB2 Axis and Promotes Ischemic Heart Failure in a Rat Model. TOHOKU J EXP MED 2021; 254:221-231. [PMID: 34321385 DOI: 10.1620/tjem.254.221] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Heart failure is a common cardiovascular disease, which has been regarded as one of the highest health care costs with high morbidity and mortality in the western countries. Long noncoding RNAs have been widely reported to regulate the initiation or progression of cardiovascular diseases. However, the specific role of SOX2 overlapping transcript (SOX2-OT) in ischemic heart failure remains uncharacterized. The present study aimed to explore the function and mechanism of SOX2-OT in ischemic heart failure. The starBase website was used to predict potential miRNAs or target mRNAs. Western blot assay was implemented to test collagen protein levels. Functional assays were conducted to evaluate the effects of SOX2-OT on H9c2 cell viability and apoptosis. RNA pull down and luciferase reporter assays were used to confirm the combination between miR-215-5p and SOX2-OT. We found out that SOX2-OT level was increased by oxygen glucose deprivation/reoxygenation treatment in H9c2 cells. Silencing of SOX2-OT ameliorated cell injury by promoting cell viability, inhibiting cell apoptosis and reducing productions of collagens. Mechanistically, miR-215-5p was confirmed to bind with SOX2-OT after prediction and screening. In addition, we discovered that miR-215-5p negatively regulated zinc finger E-box binding homeobox 2 (ZEB2) protein level by directly binding with ZEB2 3' untranslated region. Finally, we verified that SOX2-OT aggravated cell injury by targeting ZEB2 in H9c2 cells. In conclusion, SOX2-OT aggravated heart failure in vivo and promoted H9c2 cell injury via the miR-215-5p/ZEB2 axis in vitro, implying a novel insight into heart failure treatment.
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Affiliation(s)
- Jiahong Tu
- Department of Emergency, Beijing Jishuitan Hospital
| | - Liping Ma
- Department of Emergency, Beijing Jishuitan Hospital
| | | | - Jie Zhang
- Department of Anesthesiology, Dongzhimen Hospital Beijing University of Chinese Medicine
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25
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Wu Z, Yu Y, Fu L, Mai H, Huang L, Che D, Tao J, Gu X. LncRNA SOX2OT rs9839776 Polymorphism Reduces Sepsis Susceptibility in Southern Chinese Children. J Inflamm Res 2020; 13:1095-1101. [PMID: 33328755 PMCID: PMC7735778 DOI: 10.2147/jir.s281760] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Accepted: 11/18/2020] [Indexed: 01/03/2023] Open
Abstract
Background Sepsis in children is one of the main causes of death in pediatric intensive care units (PICUs); however, the pathogenesis of sepsis is not fully clear. Previous studies revealed that many genetic variations were related to sepsis susceptibility. A long non-coding RNA SOX2 overlapping transcript (SOX2OT) may play a role in mitochondrial homeostasis and antioxidative activity, but the relationship between the lncRNA SOX2OT polymorphism and sepsis susceptibility has not been reported. Methods In this study, 474 pediatric sepsis patients and 678 healthy controls were recruited from southern China. After genotyping, the strength of the associations was evaluated through odds ratios (ORs) and 95% confidence intervals (CIs). Results The SOX2OT rs9839776 T allele was associated with decreased susceptibility to sepsis in southern Chinese children (TT/CT vs CC adjusted OR = 0.778, 95% CI = 0.610–0.992; P = 0.0431). Moreover, the difference in susceptibility was greater in children of age >60 months (adjusted OR = 0.458, 95% CI = 0.234–0.896; P = 0.0225), survivors (adjusted OR = 0.758, 95% CI = 0.585–0.972; P = 0.0358), males (adjusted OR = 0.655, 95% CI = 0.479–0.894; P = 0.0077) and the sepsis subgroup (adjusted OR = 0.548, 95% CI = 0.343–0.876; P = 0.0120). Conclusion The rs9839776 T allele may contribute to decreased sepsis risk in Chinese children. Future studies with a larger sample size are needed to verify these results.
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Affiliation(s)
- Zhiyuan Wu
- Department of Pediatric Intensive Care Unit, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, People's Republic of China
| | - Yongqin Yu
- Department of Pediatric Intensive Care Unit, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, People's Republic of China
| | - Lanyan Fu
- Department of Clinical Biological Resource Bank, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, People's Republic of China
| | - Hanran Mai
- Department of Clinical Biological Resource Bank, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, People's Republic of China
| | - Li Huang
- Department of Pediatric Intensive Care Unit, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, People's Republic of China
| | - Di Che
- Department of Clinical Biological Resource Bank, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, People's Republic of China
| | - Jianping Tao
- Department of Pediatric Intensive Care Unit, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, People's Republic of China
| | - Xiaoqiong Gu
- Department of Clinical Biological Resource Bank, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, People's Republic of China.,Department of Blood Transfusion, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, People's Republic of China.,Department of Clinical Laboratory, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, People's Republic of China
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LncRNA SOX2OT Knockdown Alleviates Lipopolysaccharide-Induced Damage of PC12 Cells by Regulating miR-331-3p/Neurod1 Axis. World Neurosurg 2020; 147:e293-e305. [PMID: 33340723 DOI: 10.1016/j.wneu.2020.12.049] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 12/07/2020] [Accepted: 12/08/2020] [Indexed: 12/14/2022]
Abstract
BACKGROUND Long noncoding RNAs (lncRNAs) serve as crucial regulators in the pathogenesis of spinal cord injury (SCI). However, the role of lncRNA SOX2 overlapping transcript (SOX2OT) in SCI remains to be well revealed. METHODS An SCI rat model was established and assessed by the Basso-Beattie-Bresnahan (BBB) method. An SCI PC12 cell model was established through lipopolysaccharide (LPS) treatment. Quantitative real-time polymerase chain reaction assay was used for SOX2OT, miR-331-3p, and neurogenic differentiation 1 (Neurod1) mRNA levels. Cell counting kit-8 assay and flow cytometry analysis were performed for cell viability and apoptosis, respectively. Enzyme-linked immunosorbent assay was performed for the levels of inflammatory cytokines. The production of superoxide dismutase and malondialdehyde was determined with relevant kits. Dual-luciferase reporter and RNA immunoprecipitation assays were conducted for the relationships among SOX2OT, miR-331-3p, and Neurod1. Western blot assay was employed for protein levels. RESULTS SOX2OT was elevated in SCI rat and cell models. SOX2OT knockdown relieved the injury of SCI in SCI rat model. Moreover, the suppressive role in PC12 cell viability and the promotional roles in apoptosis, inflammation, and oxidative stress mediated by LPS were all restored by silencing SOX2OT. For mechanism analysis, SOX2OT was identified as a sponge of miR-331-3p to positively regulate Neurod1 expression. Inhibition of miR-331-3p reversed the effect of SOX2OT knockdown on LPS-induced PC12 damage. Overexpression of miR-331-3p protected PC12 cells from LPS-induced damage by binding to Neurod1. In addition, SOX2OT knockdown relieved PC12 cell injury by inactivation of Janus kinase-signal transducer and activator of transcription pathway. CONCLUSIONS SOX2OT promoted PC12 cell injury through modulating miR-331-3p/Neurod1 axis and activating Janus kinase-signal transducer and activator of transcription pathway.
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Yao W, Yan Q, Du X, Hou J. TNK2-AS1 upregulated by YY1 boosts the course of osteosarcoma through targeting miR-4319/WDR1. Cancer Sci 2020; 112:893-905. [PMID: 33164271 PMCID: PMC7893995 DOI: 10.1111/cas.14727] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 10/26/2020] [Accepted: 11/01/2020] [Indexed: 02/06/2023] Open
Abstract
Mounting research papers have suggested that long non-coding RNAs (lncRNAs) elicit important functions in the progression of osteosarcoma (OS). This study focused on the role of TNK2-AS1 in OS. TNK2-AS1 was powerfully expressed in OS tissues and cell lines. In addition, TNK2-AS1 downregulation inhibited proliferative, migratory, and invasive capacities while promoting apoptosis in OS cells. miR-4319 was removed by TNK2-AS1 and therefore TNK2-AS1 elevated WDR1 expression in OS cells. miR-4319 had an inhibitory influence on OS progression, while WDR1 was a contributor to OS progression. Rescue assays certified that TNK2-AS1 promoted malignant phenotypes in vitro and the growth in vivo of OS cells by upregulating WDR1. In depth, we found that YY1 accelerated the transcription of TNK2-AS1 in OS cells, and that its role in OS also depended on TNK2-AS1-regulated WDR1. In conclusion, TNK2-AS1 was positively modulated by YY1 and aggravated the development of OS by 'sponging' miR-4319 to elevate WDR1. The findings highlighted that TNK2-AS1 might be a promising target for the treatment of OS.
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Affiliation(s)
- Weitao Yao
- Department of Bone and Soft Tumor, Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, China
| | - Qiang Yan
- Department of Bone and Soft Tumor, Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, China
| | - Xinhui Du
- Department of Bone and Soft Tumor, Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, China
| | - Jingyu Hou
- Department of Bone and Soft Tumor, Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, China
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28
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Long Noncoding RNA SOX2-OT: Regulations, Functions, and Roles on Mental Illnesses, Cancers, and Diabetic Complications. BIOMED RESEARCH INTERNATIONAL 2020; 2020:2901589. [PMID: 33294436 PMCID: PMC7718063 DOI: 10.1155/2020/2901589] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 11/09/2020] [Accepted: 11/18/2020] [Indexed: 12/14/2022]
Abstract
SRY-box transcription factor 2 (SOX2) overlapping transcript (SOX2-OT) is an evolutionarily conserved long noncoding RNA. Its intronic region contains the SOX2 gene, the major regulator of the pluripotency of embryonic stem cells. The human SOX2-OT gene comprises multiple exons and has multiple transcription start sites and generates hundreds of transcripts. Transcription factors (IRF4, AR, and SOX3), transcriptional inhibitors (NSPc1, MTA3, and YY1), and miRNAs (miR-211 and miR-375) have been demonstrated to control certain SOX2-OT transcript level at the transcriptional or posttranscriptional levels. Accumulated evidence indicates its crucial roles in the regulation of the SOX2 gene, miRNAs, and transcriptional process. Restricted expression of SOX2-OT transcripts in the brain results in the association between SOX2-OT single nucleotide polymorphisms and mental illnesses such as schizophrenia and anorexia nervosa. SOX2-OT is notably elevated in tumor tissues, and a high level of SOX2-OT is well correlated with poor clinical outcomes in cancer patients, leading to the establishment of its role as an oncogene and a prognostic or diagnostic biomarker for cancers. The emerging evidence supports that SOX2-OT mediates diabetic complications. In summary, SOX2-OT has diversified functions and could be a therapeutic target for various diseases.
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Patil S, Dang K, Zhao X, Gao Y, Qian A. Role of LncRNAs and CircRNAs in Bone Metabolism and Osteoporosis. Front Genet 2020; 11:584118. [PMID: 33281877 PMCID: PMC7691603 DOI: 10.3389/fgene.2020.584118] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 09/30/2020] [Indexed: 02/06/2023] Open
Abstract
Bone is a mechanosensitive organ that provides strength and support. Many bone cells, various pathways, and signaling molecules coordinate bone metabolism and also determine the course of bone diseases, such as osteoporosis, osteonecrosis, osteopenia, etc. Osteoporosis is caused by increased bone resorption and reduced bone formation due to the changes in the level of different proteins and RNAs in osteoclast or/and osteoblasts. The available therapeutic interventions can significantly reduce bone resorption or enhance bone formation, but their prolonged use has deleterious side effects. Therefore, the use of non-coding RNAs as therapeutics has emerged as an interesting field of research. Despite advancements in the molecular field, not much is known about the role of long non-coding RNAs (lncRNAs) and circular RNAs (circRNAs) in bone homeostasis and osteoporosis. Therefore, in this article, we summarize the role of lncRNAs and circRNAs in different bone cells and osteoporosis so that it might help in the development of osteoporotic therapeutics.
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Affiliation(s)
- Suryaji Patil
- Lab for Bone Metabolism, Xi'an Key Laboratory of Special Medicine and Health Engineering, Key Lab for Space Biosciences and Biotechnology, Research Center for Special Medicine and Health Systems Engineering, NPU-UAB Joint Laboratory for Bone Metabolism, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
| | - Kai Dang
- Lab for Bone Metabolism, Xi'an Key Laboratory of Special Medicine and Health Engineering, Key Lab for Space Biosciences and Biotechnology, Research Center for Special Medicine and Health Systems Engineering, NPU-UAB Joint Laboratory for Bone Metabolism, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
| | - Xin Zhao
- School of Pharmacy, Shaanxi Institute of International Trade & Commerce, Xi'an, China
| | - Yongguang Gao
- Lab for Bone Metabolism, Xi'an Key Laboratory of Special Medicine and Health Engineering, Key Lab for Space Biosciences and Biotechnology, Research Center for Special Medicine and Health Systems Engineering, NPU-UAB Joint Laboratory for Bone Metabolism, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China.,Department of Chemistry, Tangshan Normal University, Tangshan, China
| | - Airong Qian
- Lab for Bone Metabolism, Xi'an Key Laboratory of Special Medicine and Health Engineering, Key Lab for Space Biosciences and Biotechnology, Research Center for Special Medicine and Health Systems Engineering, NPU-UAB Joint Laboratory for Bone Metabolism, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
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30
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Yang Y, Deng X, Li Q, Wang F, Miao L, Jiang Q. Emerging roles of long noncoding RNAs in cholangiocarcinoma: Advances and challenges. Cancer Commun (Lond) 2020; 40:655-680. [PMID: 33142045 PMCID: PMC7743012 DOI: 10.1002/cac2.12109] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 10/10/2020] [Accepted: 10/21/2020] [Indexed: 12/19/2022] Open
Abstract
Cholangiocarcinoma (CCA), a cancer with a relatively low incidence rate, is usually associated with poor prognosis. Current modalities for the diagnosis and treatment of CCA patients are still far from satisfactory. In recent years, numerous long noncoding RNAs (lncRNAs) have been identified as crucial players in the development of various cancers, including CCA. Abnormally expressed lncRNAs in CCA, regulated by some upstream molecules, significantly influence the biological behavior of tumor cells and are involved in tumor development through various mechanisms, including interactions with functional proteins, participation in competing for endogenous RNA (ceRNA) regulatory networks, activation of cancer‐related signaling pathways and epigenetic modification of gene expression. Furthermore, several lncRNAs are closely associated with the clinicopathological features of CCA patients, and are promising biomarkers for diagnosing and prognostication of CCA. Some of these lncRNAs play an important role in chemotherapy drug resistance. In addition, lncRNAs have also been shown to be involved in the inflammation microenvironment of CCA and malignant outcome of CCA risk factors, such as cholestatic liver diseases. In view of the difficulty of diagnosing CCA, more attention should be paid to detectable lncRNAs in the serum or bile. This review summarizes the recent knowledge on lncRNAs in CCA and provides a new outlook on the molecular mechanisms of CCA development from the perspective of lncRNAs. Moreover, we also discussed the limitations of the current studies and differential expression of lncRNAs in different types of CCA.
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Affiliation(s)
- Yang Yang
- Institute of Digestive Endoscopy and Medical Center for Digestive Diseases, Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, 210000, P. R. China.,Nanjing Medical University, Nanjing, Jiangsu, 210000, P. R. China
| | - Xueting Deng
- Institute of Digestive Endoscopy and Medical Center for Digestive Diseases, Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, 210000, P. R. China.,Nanjing Medical University, Nanjing, Jiangsu, 210000, P. R. China
| | - Quanpeng Li
- Institute of Digestive Endoscopy and Medical Center for Digestive Diseases, Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, 210000, P. R. China.,Nanjing Medical University, Nanjing, Jiangsu, 210000, P. R. China
| | - Fei Wang
- Institute of Digestive Endoscopy and Medical Center for Digestive Diseases, Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, 210000, P. R. China.,Nanjing Medical University, Nanjing, Jiangsu, 210000, P. R. China
| | - Lin Miao
- Institute of Digestive Endoscopy and Medical Center for Digestive Diseases, Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, 210000, P. R. China.,Nanjing Medical University, Nanjing, Jiangsu, 210000, P. R. China
| | - Qi Jiang
- Department of Gastroenterology, Dongtai People's Hospital, Yancheng, Jiangsu, 224000, P. R. China
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Transcriptome Analysis Identifies Novel Prognostic Genes in Osteosarcoma. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2020; 2020:8081973. [PMID: 33082842 PMCID: PMC7559853 DOI: 10.1155/2020/8081973] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Accepted: 07/22/2020] [Indexed: 12/21/2022]
Abstract
Osteosarcoma (OS), a malignant primary bone tumor often seen in young adults, is highly aggressive. The improvements in high-throughput technologies have accelerated the identification of various prognostic biomarkers for cancer survival prediction. However, only few studies focus on the prediction of prognosis in OS patients using gene expression data due to small sample size and the lack of public datasets. In the present study, the RNA-seq data of 82 OS samples, along with their clinical information, were collected from the TARGET database. To identify the prognostic genes for the OS survival prediction, we selected the top 50 genes of contribution as the initial candidate genes of the prognostic risk model, which were ranked by random forest model, and found that the prognostic model with five predictors including CD180, MYC, PROSER2, DNAI1, and FATE1 was the optimal multivariable Cox regression model. Moreover, based on a multivariable Cox regression model, we also developed a scoring method and stratified the OS patients into groups of different risks. The stratification for OS patients in the validation set further demonstrated that our model has a robust performance. In addition, we also investigated the biological function of differentially expressed genes between two risk groups and found that those genes were mainly involved with biological pathways and processes regarding immunity. In summary, the identification of novel prognostic biomarkers in OS would greatly assist the prediction of OS survival and development of molecularly targeted therapies, which in turn benefit patients' survival.
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Chen J, Miao W, Yang S, Yin M, Zhao J, Song D. LncRNA NR_027471 Functions as a ceRNA for miRNA-8055 Leading to Suppression of Osteosarcoma by Regulating the Expression of TP53INP1. Front Oncol 2020; 10:563255. [PMID: 33117693 PMCID: PMC7550745 DOI: 10.3389/fonc.2020.563255] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Accepted: 08/26/2020] [Indexed: 12/14/2022] Open
Abstract
Osteosarcoma is a malignancy with high aggressiveness and poor prognosis, which occurs mainly in children. The therapeutic strategy against osteosarcoma includes surgery combined with chemotherapy and radiotherapy. Although the treatment of osteosarcoma has been improved in recent years, there is a large proportion of patients with incurable osteosarcoma. Investigation of the mechanism of osteosarcoma progression would be of great help in discovering therapeutic targets for this disease. Long non-coding RNAs play critical roles in the pathogenesis of different types of cancer. The current study showed that long non-coding RNA NR_027471 was downregulated in osteosarcoma cells. In vitro and in vivo studies indicated that upregulation of NR_027471 impeded the viability, proliferation, and invasion of osteosarcoma, as well as induced cell cycle arrest at G1. In addition, binding of miR-8055 to NR_027471 was demonstrated, thereby influencing the expression of tumor protein p53 inducible nuclear protein 1 (TP53INP1). Knockdown of NR_027471 promoted epithelial–mesenchymal transition by inhibiting E-cadherin and increasing the expression of zinc finger E-box-binding homeobox 1 (ZEB1), Snail, and fibronectin. These results suggested that overexpression of NR_027471 upregulated TP53INP1 by sponging to miR-8055, leading to suppression of osteosarcoma cell proliferation and progression.
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Affiliation(s)
- Jiajia Chen
- Department of Spine Surgery, The Second Affiliated Hospital of Nantong University, Nantong, China.,Department of Orthopedics, Shanghai General Hospital of Nanjing Medical University, Shanghai, China
| | - Wujun Miao
- Department of Orthopedics, School of Medicine, Jinling Hospital, Nanjing University, Nanjing, China
| | - Saishuai Yang
- Department of Anesthesiology, The Second Affiliated Hospital of Nantong University, Nantong, China
| | - Mengchen Yin
- Department of Orthopaedics, LongHua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Jianning Zhao
- Department of Orthopedics, School of Medicine, Jinling Hospital, Nanjing University, Nanjing, China
| | - Dianwen Song
- Department of Orthopedics, Shanghai General Hospital of Nanjing Medical University, Shanghai, China.,Department of Orthopedics, Shanghai General Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
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Zhang Y, Guo H, Ma L, Chen X, Chen G. Long Noncoding RNA LINC00839 Promotes the Malignant Progression of Osteosarcoma by Competitively Binding to MicroRNA-454-3p and Consequently Increasing c-Met Expression. Cancer Manag Res 2020; 12:8975-8987. [PMID: 33061593 PMCID: PMC7522415 DOI: 10.2147/cmar.s269774] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Accepted: 08/15/2020] [Indexed: 12/14/2022] Open
Abstract
Purpose This study was conducted to determine the expression and prognostic relevance of long intergenic non-protein coding RNA 839 (LINC00839) in osteosarcoma (OS) and to explore the detailed roles of LINC00839 in regulating OS cell activities and the mechanisms responsible for its cancer-promoting activity in OS. Methods The expression of LINC00839 in OS tissues and cell lines was determined by quantitative reverse transcription–polymerase chain reaction. After LINC00839 knockdown, cell counting kit-8 assay, flow cytometric analysis, transwell migration and invasion assay, and in vivo tumor xenograft assay were used to detect its effects on cellular processes in OS. Bioinformatics analyses were conducted to predict the putative miRNAs that target LINC00839. RNA immunoprecipitation assay, luciferase reporter assay, Western blotting analysis, and rescue assays were conducted to establish a relationship among LINC00839, microRNA-454-3p (miR-454-3p), and cellular mesenchymal to epithelial transition factor (c-Met) in OS. Results LINC00839 was upregulated in OS tissues and cell lines. OS patients characterized with high LINC00839 expression exhibited shorter overall survival than patients with low LINC00839 expression. LINC00839 knockdown caused a significant reduction in OS cell proliferation, migration, and invasion in vitro. Furthermore, LINC00839 depletion inhibited OS tumor growth in vivo and induced apoptosis. Mechanistically, LINC00839 functions as a competitive endogenous RNA in OS by sponging miR-454-3p. c-Met was confirmed as a direct target gene for miR-454-3p in OS cells and was positively regulated by LINC00839 by competitively binding to miR-454-3p. Conclusion LINC00839 promoted the oncogenicity of OS by targeting the miR-454-3p/c-Met axis. The LINC00839/miR-454-3p/c-Met network may represent a potential target for OS therapy.
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Affiliation(s)
- Yang Zhang
- Department of Orthopedics, Shenzhen University General Hospital, Shenzhen 518055, People's Republic of China
| | - Hai Guo
- Department of Anesthesiology, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, 830000, People's Republic of China
| | - Li Ma
- Department of Emergency, General Hospital of Xinjiang Military Command of Chinese People's Liberation Army, Urumqi, Xinjiang, 830000, People's Republic of China
| | - Xiaoyong Chen
- Department of Orthopedics, Shenzhen University General Hospital, Shenzhen 518055, People's Republic of China
| | - Guangdong Chen
- Department of Orthopedics, Cangzhou Center Hospital, Cangzhou, Hebei 061014, People's Republic of China
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34
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Comprehensive Characterization of Prognostic Long Noncoding RNAs in Osteosarcoma. BIOMED RESEARCH INTERNATIONAL 2020; 2020:6725753. [PMID: 32908905 PMCID: PMC7468628 DOI: 10.1155/2020/6725753] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 07/17/2020] [Accepted: 07/22/2020] [Indexed: 12/27/2022]
Abstract
The molecular mechanism of osteosarcoma (OS) based on protein-coding genes has largely been studied in the past decades. However, much remains to be explored when it comes to the role that long noncoding RNAs (lncRNAs) play in the pathogenesis and progression of OS and how they are associated with OS metastasis. In the present study, we collected RNA-seq-based gene expression data of 82 OS samples from the Therapeutically Applicable Research To Generate Effective Treatments (TARGET) database, along with their clinical information. We found that 50 lncRNAs were significantly associated with patients' survival by univariable Cox regression model. Moreover, we built multivariable Cox regression model based on 7 lncRNAs and successfully stratified patients into two risk groups, which exhibited significantly different prognostic outcomes. Significantly enriched Gene Ontology (GO) terms and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways detected by differential expression analysis on DEGs between the two groups with different prognostic outcomes were both immune-related, indicating that such GO terms and pathways are critical for OS survival. Among the seven lncRNA signatures, AC011442.1 was predicted to act as an oncogenic driver in OS by correlation analysis of copy number alteration (CNA) and lncRNA expression, and it was predicted to regulate AMPK and hedgehog signaling pathways. In summary, the identification of novel prognostic lncRNAs in OS could not only improved our understanding of the lncRNAs involved in OS tumorigenesis or progression but also assist the diagnosis and development of molecularly targeted therapies for OS, which in turn benefit patients' survival.
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Kesherwani V, Shukla M, Coulter DW, Sharp JG, Joshi SS, Chaturvedi NK. Long non-coding RNA profiling of pediatric Medulloblastoma. BMC Med Genomics 2020; 13:87. [PMID: 32591022 PMCID: PMC7318516 DOI: 10.1186/s12920-020-00744-7] [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: 03/26/2020] [Accepted: 06/19/2020] [Indexed: 02/06/2023] Open
Abstract
Background Medulloblastoma (MB) is one of the most common malignant cancers in children. MB is primarily classified into four subgroups based on molecular and clinical characteristics as (1) WNT (2) Sonic-hedgehog (SHH) (3) Group 3 (4) Group 4. Molecular characteristics used for MB classification are based on genomic and mRNAs profiles. MB subgroups share genomic and mRNA profiles and require multiple molecular markers for differentiation from each other. Long non-coding RNAs (lncRNAs) are more than 200 nucleotide long RNAs and primarily involve in gene regulation at epigenetic and post-transcriptional levels. LncRNAs have been recognized as diagnostic and prognostic markers in several cancers. However, the lncRNA expression profile of MB is unknown. Methods We used the publicly available gene expression datasets for the profiling of lncRNA expression across MB subgroups. Functional analysis of differentially expressed lncRNAs was accomplished by Ingenuity pathway analysis (IPA). Results In the current study, we have identified and validated the lncRNA expression profile across pediatric MB subgroups and associated molecular pathways. We have also identified the prognostic significance of lncRNAs and unique lncRNAs associated with each MB subgroup. Conclusions Identified lncRNAs can be used as single biomarkers for molecular identification of MB subgroups that warrant further investigation and functional validation.
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Affiliation(s)
- Varun Kesherwani
- Child Health Research Institute, University of Nebraska Medical Center, Omaha, NE, 69198, USA
| | - Mamta Shukla
- Department of Genetics, Cell Biology and Anatomy, University of Nebraska Medical Center, Omaha, NE, 69198, USA
| | - Don W Coulter
- Department of Pediatrics, Hematology and Oncology Division, University of Nebraska Medical Center, Omaha, NE, 986395, USA
| | - J Graham Sharp
- Department of Genetics, Cell Biology and Anatomy, University of Nebraska Medical Center, Omaha, NE, 69198, USA
| | - Shantaram S Joshi
- Department of Genetics, Cell Biology and Anatomy, University of Nebraska Medical Center, Omaha, NE, 69198, USA
| | - Nagendra K Chaturvedi
- Department of Pediatrics, Hematology and Oncology Division, University of Nebraska Medical Center, Omaha, NE, 986395, USA. .,Nebraska Medical Center, Omaha, NE, USA.
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Huang YF, Lu L, Shen HL, Lu XX. LncRNA SNHG4 promotes osteosarcoma proliferation and migration by sponging miR-377-3p. Mol Genet Genomic Med 2020; 8:e1349. [PMID: 32537941 PMCID: PMC7434752 DOI: 10.1002/mgg3.1349] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 05/06/2020] [Accepted: 05/11/2020] [Indexed: 12/15/2022] Open
Abstract
Background Long non‐coding RNAs (lncRNAs) have been identified as crucial regulatory factors in the occurrence and progression of osteosarcoma. Methods Quantitative real‐time polymerase chain reaction was used for detecting small nucleolar RNA host gene 4 (SNHG4) and miR‐377‐3p in osteosarcoma cells and tissues. Kaplan–Meier method was applied for evaluating the association between SNHG4 expression and the overall survival of osteosarcoma patients. CCK8, EdU, flow cytometry, and transwell assay were performed to examine the cell proliferation, apoptosis, cycle, and migration of osteosarcoma cells. Results In our study, we found that lncRNA SNHG4 was highly expressed in osteosarcoma tissues and cell lines. Additionally, the SNHG4 expression was related to distant metastasis, TNM stage, and survival of osteosarcoma patients. Through SNHG4 knockdown, the proliferation of osteosarcoma cells was considerably restrained and the cell apoptosis was induced in vivo and in vitro. Moreover, downregulated SNHG4 inhibited the cell migration and epithelial‐mesenchymal transition in HOS and MG63 cells. In mechanism, we found that SNHG4 acts as a competing endogenous RNA to sponge miR‐377‐3p, which is downregulated in osteosarcoma. Our results showed that there is a negative correlation between SNHG4 and miR‐377‐3p expression in osteosarcoma patients. Conclusion Taken together, SNHG4 promotes cell proliferation and migration by sponging miR‐377‐3p in osteosarcoma.
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Affiliation(s)
- Yi-Feng Huang
- Department of Orthopaedics, Shaoxing Central Hospital, Shaoxing, Zhejiang, China
| | - Lei Lu
- Department of Orthopaedics, Shaoxing Central Hospital, Shaoxing, Zhejiang, China
| | - Hai-Liang Shen
- Department of Orthopaedics, Affiliated Hospital of Shaoxing College of Arts and Sciences, Shaoxing, Zhejiang, China
| | - Xin-Xiang Lu
- Department of Orthopaedics, Shaoxing Central Hospital, Shaoxing, Zhejiang, China
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Liu L, Zheng M, Wang X, Gao Y, Gu Q. LncRNA NR_136400 Suppresses Cell Proliferation and Invasion by Acting as a ceRNA of TUSC5 That Is Modulated by miR-8081 in Osteosarcoma. Front Pharmacol 2020; 11:641. [PMID: 32499696 PMCID: PMC7242660 DOI: 10.3389/fphar.2020.00641] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Accepted: 04/21/2020] [Indexed: 12/11/2022] Open
Abstract
Long non-coding RNAs (lncRNAs) are emerging as important regulators of the processes involved in cancer development and progression. The molecular mechanism by which lncRNAs regulate the progression of osteosarcoma has not been clearly elucidated. The role of NR_136400, which is an uncharacterized lncRNA, has not been previously reported in osteosarcoma (OS). In the present study, we demonstrated that NR_136400 was downregulated in OS cells and that its downregulation promoted OS cell proliferation, apoptosis, and invasion. NR_136400 downregulation facilitated EMT by inhibiting the expression of E-cadherin and elevating the expression of ZEB1, Snail, and fibronectin. In vivo experiments using a xenograft tumor mouse model revealed that NR_136400 downregulation promoted tumor growth in OS. Mechanistic investigations demonstrated that NR_136400 competitively bound to miR-8081 and then upregulated the protein expression of TUSC5. Taken together, a newly identified regulatory mechanism of the lncRNA NR_136400/miR-8081/TUSC5 axis was systematically studied in OS, providing a promising target for therapeutic treatment.
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Affiliation(s)
- Liyun Liu
- Henan Provincial People's Hospital, School of Clinical Medicine, Henan University, Zhengzhou, China.,Luoyang Orthopedic Hospital of Henan Province, Orthopedic Hospital of Henan Province, Zhengzhou, China
| | - Mingxia Zheng
- Department of Paediatrics, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xinwei Wang
- Department of Spine Surgery, Changzheng Hospital, The Second Military Medical University, Shanghai, China
| | - Yanzheng Gao
- Henan Provincial People's Hospital, School of Clinical Medicine, Henan University, Zhengzhou, China
| | - Qingguo Gu
- Department of Spine Surgery, Changzheng Hospital, The Second Military Medical University, Shanghai, China
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Abou Alezz M, Celli L, Belotti G, Lisa A, Bione S. GC-AG Introns Features in Long Non-coding and Protein-Coding Genes Suggest Their Role in Gene Expression Regulation. Front Genet 2020; 11:488. [PMID: 32499820 PMCID: PMC7242645 DOI: 10.3389/fgene.2020.00488] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Accepted: 04/20/2020] [Indexed: 12/16/2022] Open
Abstract
Long non-coding RNAs (lncRNAs) are recognized as an important class of regulatory molecules involved in a variety of biological functions. However, the regulatory mechanisms of long non-coding genes expression are still poorly understood. The characterization of the genomic features of lncRNAs is crucial to get insight into their function. In this study, we exploited recent annotations by GENCODE to characterize the genomic and splicing features of long non-coding genes in comparison with protein-coding ones, both in human and mouse. Our analysis highlighted differences between the two classes of genes in terms of their gene architecture. Significant differences in the splice sites usage were observed between long non-coding and protein-coding genes (PCG). While the frequency of non-canonical GC-AG splice junctions represents about 0.8% of total splice sites in PCGs, we identified a significant enrichment of the GC-AG splice sites in long non-coding genes, both in human (3.0%) and mouse (1.9%). In addition, we found a positional bias of GC-AG splice sites being enriched in the first intron in both classes of genes. Moreover, a significant shorter length and weaker donor and acceptor sites were found comparing GC-AG introns to GT-AG introns. Genes containing at least one GC-AG intron were found conserved in many species, more prone to alternative splicing and a functional analysis pointed toward their enrichment in specific biological processes such as DNA repair. Our study shows for the first time that GC-AG introns are mainly associated with lncRNAs and are preferentially located in the first intron. Additionally, we discovered their regulatory potential indicating the existence of a new mechanism of non-coding and PCGs expression regulation.
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Affiliation(s)
| | | | | | | | - Silvia Bione
- Computational Biology Unit, Institute of Molecular Genetics Luigi Luca Cavalli-Sforza, National Research Council, Pavia, Italy
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Song X, Wang H, Wu J, Sun Y. Long Noncoding RNA SOX2-OT Knockdown Inhibits Proliferation and Metastasis of Prostate Cancer Cells Through Modulating the miR-452-5p/HMGB3 Axis and Inactivating Wnt/β-Catenin Pathway. Cancer Biother Radiopharm 2020; 35:682-695. [PMID: 32407168 DOI: 10.1089/cbr.2019.3479] [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: 12/23/2022] Open
Abstract
Background: Recent studies have proven that abnormal expression of long noncoding RNAs (lncRNAs) often contributes to growth and invasion of cancer cells. The purpose of this study was to investigate the biological function and regulatory mechanism of lncRNA SOX2 overlapping transcript (SOX2-OT) in prostate cancer (PCa) progression. Materials and Methods: The expression of SOX2-OT, microRNA-452-5p (miR-452-5p), and high mobility group box 3 (HMGB3) was detected by quantitative real-time polymerase chain reaction (qRT-PCR). Flow cytometry was performed to determine the cell cycle distribution. Western blot assay was conducted to measure the protein levels of cyclin D1, p21, p27, E-cadherin, vimentin, and N-cadherin. The interaction between miR-452-5p and SOX2-OT or HMGB3 was predicted by bioinformatics analysis and verified by dual-luciferase reporter assay and RNA immunoprecipitation assay. The mice xenograft model was established to investigate the role of SOX2-OT in vivo. Results: SOX2-OT and HMGB3 were upregulated, whereas miR-452-5p was downregulated in PCa tissues and cells. Knockdown of SOX2-OT inhibited PCa cell growth and metastasis. MiR-452-5p could directly bind to SOX2-OT and its knockdown reversed the inhibitory effects of SOX2-OT interference on growth and metastasis of PCa cells. HMGB3 was a direct target of miR-452-5p and its knockdown weakened the promotive effects of miR-452-5p silence on growth and metastasis of PCa cells. Moreover, HMGB3 expression was inversely regulated by miR-452-5p and positively modulated by SOX2-OT. Furthermore, SOX2-OT activated the Wnt/β-catenin signaling pathway through increasing HMGB3 expression. Finally, SOX2-OT knockdown hindered tumor growth in vivo by regulating miR-452-5p/HMGB3 axis. Conclusions: SOX2-OT downregulation limited PCa cell growth and metastasis by regulating miR-452-5p/HMGB3 axis and inactivating Wnt/β-catenin signaling pathway, which might offer lncRNA-directed diagnosis and therapy for PCa.
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Affiliation(s)
- Xiaofei Song
- Department of Urology, Fudan University, Minhang Hospital, Shanghai, China
| | - Hang Wang
- Department of Urology, Fudan University, Zhongshan Hospital, Shanghai, China
| | - Jiawen Wu
- Department of Urology, Fudan University, Minhang Hospital, Shanghai, China
| | - Yang Sun
- Department of Urology, Fudan University, Minhang Hospital, Shanghai, China
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Gu Q, Wang B, Zhao H, Wang W, Wang P, Deng Y. LncRNA promoted inflammatory response in ischemic heart failure through regulation of miR-455-3p/TRAF6 axis. Inflamm Res 2020; 69:667-681. [PMID: 32350569 DOI: 10.1007/s00011-020-01348-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 02/14/2020] [Accepted: 04/08/2020] [Indexed: 12/12/2022] Open
Abstract
OBJECTIVES Ischemic heart failure (IHF) is the most common cause of death globally. Growing evidence shows abnormal expression of long non-coding RNAs in heart failure patients. This study aims to investigate the effect of sex-determining region Y-box 2 (SOX2) overlapping transcript (SOX2-OT) on the regulation of the inflammatory response in ischemic heart failure. METHODS IHF rat and oxygen and glucose deprivation (OGD) cell models were established. qRT-PCR was employed to investigate the expression of SOX2-OT. ELISA, western blot and cell viability/apoptosis assays were performed to assess the effects of SOX2-OT. Online software program was used to identify miRNAs that target SOX2-OT, followed by validation using RNA pull-down. Potential targets of miRNAs were searched, and examined by immunoblotting, qRT-PCR and luciferase reporter assay. RESULTS SOX2-OT was up-regulated in IHF and OGD. Knockdown of SOX2-OT promoted cell proliferation, decreased apoptosis rate and cell oxidative damage, and ameliorated inflammatory response. SOX2-OT contains binding sites for miR-455-3p, miR-5586-3p and miR-1252-5p. RNA pull-down confirmed the binding ability between SOX2-OT and miR-455-3p. TRAF6 is a direct target of miR-455-3p. Moreover, the regulatory activity of SOX2-OT on inflammatory response was partially through its negative regulation of miR-455-3p, which directly regulates TRAF6. Down-regulation of SOX2-OT improved myocardial dysfunction in IHF rat. CONCLUSIONS Our results reveal that SOX2-OT may be a driver of IHF through repression of miR-455-3p, and miR-455-3p alleviates IHF by targeting TRAF6. Therefore, SOX2-OT/miR-455-3p/TRAF6 may be a potential target for advanced therapeutic strategy for IHF.
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Affiliation(s)
- Qianqian Gu
- Department of Geriatrics, Cangzhou Central Hospital, 16 Xinhua West Road, Cangzhou, 061000, Hebei, China.
| | - Bin Wang
- Department of Otorhinolaryngology, Cangzhou Central Hospital, Cangzhou, 061000, Hebei, China
| | - Hongying Zhao
- Department of Geriatrics, Cangzhou Central Hospital, 16 Xinhua West Road, Cangzhou, 061000, Hebei, China
| | - Wenjuan Wang
- Department of Geriatrics, Cangzhou Central Hospital, 16 Xinhua West Road, Cangzhou, 061000, Hebei, China
| | - Pengsheng Wang
- Department of Geriatrics, Cangzhou Central Hospital, 16 Xinhua West Road, Cangzhou, 061000, Hebei, China
| | - Yu Deng
- Department of Geriatrics, Cangzhou Central Hospital, 16 Xinhua West Road, Cangzhou, 061000, Hebei, China
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Zhu K, Yuan Y, Wen J, Chen D, Zhu W, Ouyang Z, Wang W. LncRNA Sox2OT-V7 promotes doxorubicin-induced autophagy and chemoresistance in osteosarcoma via tumor-suppressive miR-142/miR-22. Aging (Albany NY) 2020; 12:6644-6666. [PMID: 32302291 PMCID: PMC7202483 DOI: 10.18632/aging.103004] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Accepted: 03/09/2020] [Indexed: 12/11/2022]
Abstract
Doxorubicin (Dox) is one of the most commonly used chemotherapeutic drugs for osteosarcoma (OS) treatment. In the present study, we attempted to investigate the mechanism by which Sox2OT-V7 dysregulation affects Dox chemoresistance to provide a novel experimental basis for developing neoadjuvant therapy. Sox2OT-V7 expression is upregulated in OS tissues, particularly in chemoresistant OS tissues, and in OS cell lines compared to controls. Dox treatment induces autophagy and Sox2OT-V7 expression in U2OS cells, and Dox-induced autophagy is partially attenuated by Sox2OT-V7 silencing. Knocking down Sox2OT-V7 or blocking autophagy in Dox-resistant U2OS/Dox cells resensitizes the cells to Dox treatment in vitro. Moreover, Sox2OT-V7 directly targets miR-142/miR-22 to inhibit their expression, and the effect of Sox2OT-V7 silencing on U2OS cell autophagy and U2OS/Dox cell sensitivity to Dox can be reversed by miR-142/miR-22 inhibition. Sox2OT-V7 silencing enhances the suppressive effects of Dox on U2OS/Dox cell-derived tumor growth in vivo, while miR-22 inhibition or miR-142 inhibition reverses the effects of Sox2OT-V7 silencing on Dox-induced suppression on tumor growth. Finally, miR-142 directly targets ULK1, ATG4A, and ATG5, while miR-22 directly targets ULK1 to inhibit the expression of the target gene; The Sox2OT-V7/miR-142/miR-22 axis modulates autophagy in OS cells by regulating ULK1, ATG4A, and ATG5.
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Affiliation(s)
- Kewei Zhu
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China
| | - Yang Yuan
- Department of Orthopedics, Xiangya Changde Hospital, Changde, Hunan 415000, China
| | - Jie Wen
- Department of Pediatric Orthopedics, Hunan Provincial Peoples' Hospital, Changsha, Hunan 410006, China
| | - Ding Chen
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China
| | - Weihong Zhu
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China
| | - Zhengxiao Ouyang
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China
| | - Wanchun Wang
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China
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Liu W, Liu PC, Ma K, Wang YY, Chi QB, Yan M. LncRNA DLEU2 promotes tumour growth by sponging miR-337-3p in human osteosarcoma. Cell Biochem Funct 2020; 38:886-894. [PMID: 32196715 DOI: 10.1002/cbf.3509] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2019] [Accepted: 12/19/2019] [Indexed: 12/14/2022]
Abstract
According to statistics, abnormal regulation of lncRNAs pivotally influences multiple malignant tumours. DLEU2, as one of these lncRNAs, is detected to be related to growth and development of tumours. The molecular mechanisms of DLEU2 in osteosarcoma, however, are still unknown. QRT-PCR was adopted to analyse the correlations of clinicopathological features and prognosis of osteosarcoma cases with DLEU2. The influences of DLEU2 on cell migration and viability were evaluated independently by experiments in vitro and in vivo. Bioinformatics analysis, RNA immunoprecipitation (RIP) assay, and dual luciferase reporter gene assay confirmed the specific binding of DLEU2 to miR-337-3p. Moreover, rescue experiments were carried out to further evaluate the regulatory association between miR-337-3p expression and DLEU2. In osteosarcoma tissues and cells, DLEU2 expression level was raised remarkably in comparison with that in para-carcinoma normal tissues, and DLEU2 high expression had associations with poor prognosis, tumour stages, and TS of osteosarcoma cases. Cell migration ability and viability were blocked by DLEU2 knockdown but enhanced by ectopic DLEU2 expression in vitro and in vivo. Additionally, DLEU2 was found to sponge miR-337-3p and trigger the stimulating effect in osteosarcoma cells, which would be suppressed by miR-337-3p mimics. Furthermore, a negative correlation existed between miR-337-3p expression and DLEU2 in osteosarcoma tissues. This study manifests that DLEU2 sponges miR-337-3p to accelerate tumour growth and is confirmed to be a factor for poor prognosis of osteosarcoma cases. SIGNIFICANCE OF THE STUDY: LncRNA DLEU2 has been reported to be dysregulated in many tumours; however, the functions and underlying mechanism of DLEU2 in osteosarcoma pathogenesis are still unknown. This study is the first to demonstrate the roles of DLEU2 in osteosarcoma and revealed that DLEU2 may serve as a ceRNA to sponge miR-337-3p and then promote the progression of osteosarcoma, providing a potential therapeutic target for osteosarcoma.
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Affiliation(s)
- Wei Liu
- Department of Spine Surgery, The First Hospital of Jilin University, Jilin, China
| | - Peng-Cheng Liu
- Department of Hand and Foot Surgery, The First Hospital of Jilin University, Jilin, China
| | - Ke Ma
- Department of Pediatrics, The First Hospital of Jilin University, Jilin, China
| | - Yuan-Yi Wang
- Department of Spine Surgery, The First Hospital of Jilin University, Jilin, China
| | - Qing-Bao Chi
- Department of Spine Surgery, The First Hospital of Jilin University, Jilin, China
| | - Ming Yan
- Department of Spine Surgery, The First Hospital of Jilin University, Jilin, China
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Li G, Pan C, Sun J, Wan G, Sun J. lncRNA SOX2-OT regulates laryngeal cancer cell proliferation, migration and invasion and induces apoptosis by suppressing miR-654. Exp Ther Med 2020; 19:3316-3324. [PMID: 32266028 PMCID: PMC7132247 DOI: 10.3892/etm.2020.8577] [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: 06/04/2019] [Accepted: 01/13/2020] [Indexed: 12/17/2022] Open
Abstract
Laryngeal carcinoma is the most common type of malignant tumor in the head and neck. Long non-coding RNAs (lncRNAs) serve crucial roles in numerous biological processes. The present study aimed to investigate the role of lncRNA SOX2-OT in laryngeal cancer and to reveal the underlying mechanisms. Reverse transcription-quantitative PCR assays were used to measure the expression levels of SOX2-OT in the laryngeal cell lines. Furthermore, cell proliferation, apoptosis, migration and invasion were assessed by CCK-8, flow cytometry, wound healing and Transwell assays, respectively. Western blot assay was performed to detect the protein expressions. In addition, a dual-luciferase reporter assay was performed to confirm the direct interaction between SOX2-OT and microRNA (miR)-654. The data demonstrated that SOX2-OT level were significantly increased in the laryngeal cell lines. Furthermore, SOX2-OT silencing markedly promoted apoptosis and suppressed the proliferation, migration and invasion of TU-177 cells. A dual-luciferase reporter assay revealed that miR-654 was a direct target of SOX2-OT. Moreover, downregulation of miR-654 could attenuate cell apoptosis and accelerate cell proliferation, migration and invasion in TU-177 cells. In summary, the present study reported that knockdown of SOX2-OT could suppress cell proliferation, migration and invasion, and induce apoptosis in laryngeal cancer by targeting miR-654.
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Affiliation(s)
- Guang Li
- School of Medicine, Shandong University, Jinan, Shandong 250012, P.R. China.,Department of Otorhinolaryngology-Head and Neck Surgery, The First Affiliated Hospital of University of Science and Technology of China.,Department of Otorhinolaryngology-Head and Neck Surgery, The First Affiliated Hospital of University of Science and Technology of China, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230001, P.R. China
| | - Chunchen Pan
- Department of Otorhinolaryngology-Head and Neck Surgery, The First Affiliated Hospital of University of Science and Technology of China, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230001, P.R. China
| | - Jiaqiang Sun
- Department of Otorhinolaryngology-Head and Neck Surgery, The First Affiliated Hospital of University of Science and Technology of China, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230001, P.R. China
| | - Guanglun Wan
- Department of Otorhinolaryngology-Head and Neck Surgery, The First Affiliated Hospital of University of Science and Technology of China, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230001, P.R. China
| | - Jingwu Sun
- School of Medicine, Shandong University, Jinan, Shandong 250012, P.R. China.,Department of Otorhinolaryngology-Head and Neck Surgery, The First Affiliated Hospital of University of Science and Technology of China, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230001, P.R. China
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Zhang Y, Wu D, Wang D. Long non-coding RNA ARAP1-AS1 promotes tumorigenesis and metastasis through facilitating proto-oncogene c-Myc translation via dissociating PSF/PTB dimer in cervical cancer. Cancer Med 2020; 9:1855-1866. [PMID: 31953923 PMCID: PMC7050100 DOI: 10.1002/cam4.2860] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Revised: 01/05/2020] [Accepted: 01/06/2020] [Indexed: 12/27/2022] Open
Abstract
Long non-coding RNA (lncRNA) is emerging as a pivotal regulator in tumorigenesis and aggressive progression. Here, we focused on an oncogenic lncRNA, ARAP1 antisense RNA 1 (ARAP1-AS1), which was notably upregulated in cervical cancer (CC) tissues, cell lines and serum. High ARAP1-AS1 expression was closely associated with larger tumor size, advanced FIGO stage as well as lymph node metastasis. Importantly, it was identified as an effective diagnostic and prognostic biomarker for CC. In vitro and in vivo assays showed that knockdown of ARAP1-AS1 inhibited, while overexpression of ARAP1-AS1 promoted CC cell growth and dissemination. Stepwise mechanistic dissection unveiled that ARAP1-AS1 could directly interact with PSF to release PTB, resulting in accelerating the internal ribosome entry site (IRES)-driven translation of proto-oncogene c-Myc, thereby facilitating CC development and progression. Moreover, c-Myc was able to transcriptionally activate ARAP1-AS1 by directly binding to the E-box motif located on ARAP1-AS1 promoter. Taken together, our findings clearly reveal the crucial role of ARAP1-AS1 in CC tumorigenesis and metastasis via regulation of c-Myc translation, targeting ARAP1-AS1 and its related regulatory loop implicates the therapeutic possibility for CC patients.
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Affiliation(s)
- Yao Zhang
- Department of Gynaecology and ObstetricsShengjing Hospital of China Medical UniversityShenyangChina
| | - Dan Wu
- Department of Gynaecology and ObstetricsShengjing Hospital of China Medical UniversityShenyangChina
| | - Dian Wang
- Department of Gynaecology and ObstetricsShengjing Hospital of China Medical UniversityShenyangChina
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Li Y, Du M, Wang S, Zha J, Lei P, Wang X, Wu D, Zhang J, Chen D, Huang D, Lu J, Li H, Sun M. Clinicopathological Implication of Long Non-Coding RNAs SOX2 Overlapping Transcript and Its Potential Target Gene Network in Various Cancers. Front Genet 2020; 10:1375. [PMID: 32038720 PMCID: PMC6989546 DOI: 10.3389/fgene.2019.01375] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Accepted: 12/17/2019] [Indexed: 12/13/2022] Open
Abstract
Background SOX2 overlapping transcript (SOX2-OT) produces alternatively spliced long non-coding RNAs (lncRNA). Previous studies of the prognostic role of SOX2-OT expression met with conflicting results. The aim of this study was to properly consider the prognostic role of SOX2-OT expression in several cancers. In addition, the regulative mechanism of SOX2-OT is explored. Methods PubMed, EMBASE, and Cochrane Library and The Cancer Genome Atlas (TCGA) database were comprehensively explored to recover pertinent studies. We conducted an extensive inquiry to verify the implication of SOX2-OT expression in cancer patients by conducting a meta-analysis of 13 selected studies. Thirty-two TCGA databases were used to analyze the connection between SOX2-OT expression and both the overall survival (OS) and clinicopathological characteristics of cancer patients using R and STATA 13.0. Trial sequential analysis (TSA) was adopted in order to compute the studies' power. Results Thirteen studies involving 1172 cancer patients and 32 TCGA cancer types involving 9676 cancer patients were eventually selected. Elevated SOX2-OT expression was significantly related to shorter OS (HR = 2.026, 95% CI: 1.691-2.428, P < 0.0001) and disease-free survival (DFS) (HR = 2.554, 95% CI: 1.261-5.174, P = 0.0092) in cancer patients. Meanwhile, TSA substantiated adequate power to demonstrate the relationship between SOX2-OT expression and OS. The cancer patients with elevated SOX2-OT expression were more likely to have advanced clinical stage (RR = 1.468, 95% CI: 1.106-1.949, P = 0.0079), earlier lymphatic metastasis (P = 0.0005), earlier distant metastasis (P < 0.0001), greater tumor size (P < 0.0001), and more extreme tumor invasion (P < 0.0001) compared to those with low SOX2-OT expression. Meta-regression and subgroup analysis revealed that follow-up time, sample type, and tumor type could significantly contribute to heterogeneity for survival outcomes. The follow-up time could significantly explain heterogeneity for tumor, node, metastasis (TNM) stage. Furthermore, up to 500 validated target genes were distinguished, and the gene oncology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses demonstrated that the validated targets of SOX2-OT were substantially enriched in cell adhesion, mRNA binding, and mRNA surveillance pathways. Conclusions Elevated expression of SOX2-OT predicted a poor OS and DFS. Overexpression of SOX2-OT was correlated with more advanced tumor stage, earlier lymphatic metastasis, earlier distant metastasis, larger tumor size, and deeper tumor invasion. SOX2-OT-mediated cell adhesion, mRNA binding, or mRNA surveillance could be intrinsic mechanisms for invasion and metastasis.
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Affiliation(s)
- Yishu Li
- Department of General Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Mengyu Du
- Department of Anesthesiology, Institute of Anesthesiology, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Shengsheng Wang
- Department of General Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Jin Zha
- Department of Anesthesiology, Institute of Anesthesiology, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Peijie Lei
- The First Clinical School, Hubei University of Medicine, Shiyan, China
| | - Xueqi Wang
- Institute of Medicine and Nursing, Hubei University of Medicine, Shiyan, China
| | - Di Wu
- Department of Anesthesiology, Institute of Anesthesiology, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Jianhua Zhang
- Institute of Medicine and Nursing, Hubei University of Medicine, Shiyan, China
| | - Denggang Chen
- Department of General Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Dong Huang
- Department of General Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Jing Lu
- Department of Medical Imaging, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Heng Li
- Department of General Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Min Sun
- Department of General Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, China.,Department of Anesthesiology, Institute of Anesthesiology, Taihe Hospital, Hubei University of Medicine, Shiyan, China.,Hubei Key Laboratory of Embryonic Stem Cell Research, Taihe Hospital, Hubei University of Medicine, Shiyan, China
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Wang Y, Wu N, Luo X, Zhang X, Liao Q, Wang J. SOX2OT, a novel tumor-related long non-coding RNA. Biomed Pharmacother 2019; 123:109725. [PMID: 31865145 DOI: 10.1016/j.biopha.2019.109725] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2019] [Revised: 12/02/2019] [Accepted: 12/05/2019] [Indexed: 12/24/2022] Open
Abstract
SOX2OT is a long non-coding RNA that is highly expressed in embryonic stem cells. The SOX2OT gene is comprised of 10 exons and more than two transcription start sites. Dysregulation of SOX2OT is observed in various tumors, including lung cancer, gastric cancer, esophageal cancer, breast cancer, hepatocellular carcinoma, ovarian cancer, pancreatic ductal adenocarcinoma, laryngeal squamous cell carcinoma, cholangiocarcinoma, osteosarcoma, nasopharyngeal carcinoma, and glioblastoma, wherein it typically functions as an oncogene and possibly as a tumor suppressor gene. The mechanisms underlying the effects of SOX2OT are complex and involve multiple factors and signaling pathways. In this review, we describe the current evidence regarding the role and potential clinical utility of SOX2OT in human cancers.
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Affiliation(s)
- Ying Wang
- Department of the Central Laboratory, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha 410013, Hunan, People's Republic of China; Hunan Clinical Research Center in Gynecologic Cancer, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, 283, Tongzipo Road, Changsha 410013, Hunan, People's Republic of China.
| | - Nayiyuan Wu
- Department of the Central Laboratory, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha 410013, Hunan, People's Republic of China; Hunan Clinical Research Center in Gynecologic Cancer, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, 283, Tongzipo Road, Changsha 410013, Hunan, People's Republic of China
| | - Xia Luo
- Department of the Central Laboratory, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha 410013, Hunan, People's Republic of China
| | - Xiaoyun Zhang
- Department of the Central Laboratory, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha 410013, Hunan, People's Republic of China; Hunan Clinical Research Center in Gynecologic Cancer, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, 283, Tongzipo Road, Changsha 410013, Hunan, People's Republic of China
| | - Qianjin Liao
- Department of the Central Laboratory, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha 410013, Hunan, People's Republic of China.
| | - Jing Wang
- Department of the Central Laboratory, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha 410013, Hunan, People's Republic of China; Hunan Clinical Research Center in Gynecologic Cancer, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, 283, Tongzipo Road, Changsha 410013, Hunan, People's Republic of China.
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The lncRNA SOX2OT rs9839776 C>T Polymorphism Indicates Recurrent Miscarriage Susceptibility in a Southern Chinese Population. Mediators Inflamm 2019; 2019:9684703. [PMID: 31827385 PMCID: PMC6885167 DOI: 10.1155/2019/9684703] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Revised: 09/25/2019] [Accepted: 10/22/2019] [Indexed: 12/26/2022] Open
Abstract
Genetic susceptibility may be involved in the onset of recurrent miscarriage. Previous studies have shown that some genetic polymorphisms that regulate cell migration are associated with susceptibility to recurrent miscarriage. The SOX2 overlapping transcript (SOX2OT) may regulate the migration and invasion of multiple tumor cells and is related to susceptibility to various diseases. However, whether lncRNA SOX2OT polymorphisms are related to recurrent miscarriage susceptibility is unclear. Therefore, we investigated the relationship between the lncRNA SOX2OT rs9839776 C>T polymorphism and recurrent miscarriage susceptibility. We recruited 570 subjects with recurrent miscarriage and 578 healthy control subjects from a population in southern China and used the TaqMan method for genotyping. We found a significant association between the rs9839776 CT genotype in the SOX2OT gene and an increased risk for recurrent miscarriage (CT vs CC: adjusted OR = 1.357, 95%CI = 1.065 - 1.728, P = 0.0134). However, we did not observe any significant associations between the recurrent miscarriage risk and the number of miscarriages in different age groups. In conclusion, our study indicated that the rs9839776 CT genotype may contribute to an increased risk of recurrent miscarriage in the southern Chinese population and that rs9839776 may act as a prognostic biomarker in recurrent miscarriage patients. However, an experiment-based study with a larger sample size should be performed to confirm these results.
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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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Targeting USP9x/SOX2 axis contributes to the anti-osteosarcoma effect of neogambogic acid. Cancer Lett 2019; 469:277-286. [PMID: 31605775 DOI: 10.1016/j.canlet.2019.10.015] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 09/21/2019] [Accepted: 10/03/2019] [Indexed: 12/15/2022]
Abstract
SOX2 has been viewed as a critical oncoprotein in osteosarcoma. Emerging evidence show that inducing the degradation of transcription factors such as SOX2 is a promising strategy to make them druggable. Here, we show that neogambogic acid (NGA), an active ingredient in garcinia, significantly inhibited the proliferation of osteosarcoma cells with ubiquitin proteasome-mediated degradation of SOX2 in vitro and in vivo. We further identified USP9x as a bona fide deubiquitinase for SOX2 and NGA directly interacts with USP9x in cells. Moreover, knockdown of USP9x inhibited the proliferation and colony formation of osteosarcoma cells, which could be rescued by overexpression of SOX2. Consistent with this, knockdown of USP9x inhibited the proliferation of osteosarcoma cells in a xenograft mouse model. Collectively, we identify USP9x as the first deubiquitinating enzyme for controlling the stability of SOX2 and USP9x is a direct target for NGA. We propose that targeting the USP9x/SOX2 axis represents a novel strategy for the therapeutic of osteosarcoma and other SOX2 related cancers.
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Sheng K, Li Y. LncRNA TUG1 promotes the development of osteosarcoma through RUNX2. Exp Ther Med 2019; 18:3002-3008. [PMID: 31555384 PMCID: PMC6755426 DOI: 10.3892/etm.2019.7880] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2018] [Accepted: 06/27/2019] [Indexed: 12/20/2022] Open
Abstract
The lncRNA taurine-upregulated gene 1 (TUG1) is known to serve a role as an oncogene in the development of a number of human malignancies. However, the functionality of TUG1 in osteosarcoma remains poorly characterized. Therefore, the aim of the present study was to explore the role of TUG1 in osteosarcoma. TUG1 expression in tumor tissues, adjacent healthy tissues and plasma from 40 osteosarcoma patients and 40 healthy controls was detected using reverse transcription-quantitative PCR. Receiver operating characteristic curves were used to analyze the diagnostic value of TUG1 for osteosarcoma while the prognostic value of TUG1 for osteosarcoma was analyzed using the Kaplan-Meier method. TUG1 expression vectors and siRNAs were transfected into MG-63 and U2OS osteosarcoma cell lines, and the effects on osteosarcoma cell viability, migration and invasion were tested using Cell Counting kit-8 and Transwell assays. The effects of TUG1 overexpression on runt-related transcription factor 2 (RUNX2) expression were also detected using western blotting. TUG1 expression was found to be significantly higher in osteosarcoma tissues compared with adjacent healthy tissues, and in the plasma of osteosarcoma patients compared with healthy controls. TUG1 expression also exhibited significant diagnostic and prognostic value for osteosarcoma. TUG1 overexpression and knockdown respectively increased and reducedosteosarcoma cell viability, migration and invasion. In addition, TUG1 overexpression upregulated RUNX2 expression. These results suggest that lncRNA TUG1 may promote the development of osteosarcoma by modulating RUNX2 and TUG1 expression, which can serve as prognostic and diagnostic markers for this malignancy.
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Affiliation(s)
- Kunkun Sheng
- Department of Orthopedics, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, P.R. China
| | - Yan Li
- Department of Orthopedics, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, P.R. China
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