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Xiang T, Yang C, Deng Z, Sun D, Luo F, Chen Y. Krüppel-like factors family in health and disease. MedComm (Beijing) 2024; 5:e723. [PMID: 39263604 PMCID: PMC11387732 DOI: 10.1002/mco2.723] [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: 03/19/2024] [Revised: 08/14/2024] [Accepted: 08/14/2024] [Indexed: 09/13/2024] Open
Abstract
Krüppel-like factors (KLFs) are a family of basic transcription factors with three conserved Cys2/His2 zinc finger domains located in their C-terminal regions. It is acknowledged that KLFs exert complicated effects on cell proliferation, differentiation, survival, and responses to stimuli. Dysregulation of KLFs is associated with a range of diseases including cardiovascular disorders, metabolic diseases, autoimmune conditions, cancer, and neurodegenerative diseases. Their multidimensional roles in modulating critical pathways underscore the significance in both physiological and pathological contexts. Recent research also emphasizes their crucial involvement and complex interplay in the skeletal system. Despite the substantial progress in understanding KLFs and their roles in various cellular processes, several research gaps remain. Here, we elucidated the multifaceted capabilities of KLFs on body health and diseases via various compliable signaling pathways. The associations between KLFs and cellular energy metabolism and epigenetic modification during bone reconstruction have also been summarized. This review helps us better understand the coupling effects and their pivotal functions in multiple systems and detailed mechanisms of bone remodeling and develop potential therapeutic strategies for the clinical treatment of pathological diseases by targeting the KLF family.
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Affiliation(s)
- Tingwen Xiang
- Department of Orthopedics Southwest Hospital Third Military Medical University (Army Medical University) Chongqing China
| | - Chuan Yang
- Department of Biomedical Materials Science Third Military Medical University (Army Medical University) Chongqing China
| | - Zihan Deng
- Department of Orthopedics Southwest Hospital Third Military Medical University (Army Medical University) Chongqing China
| | - Dong Sun
- Department of Orthopedics Southwest Hospital Third Military Medical University (Army Medical University) Chongqing China
| | - Fei Luo
- Department of Orthopedics Southwest Hospital Third Military Medical University (Army Medical University) Chongqing China
| | - Yueqi Chen
- Department of Orthopedics Southwest Hospital Third Military Medical University (Army Medical University) Chongqing China
- Department of Orthopedics Chinese PLA 76th Army Corps Hospital Xining China
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2
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Poltronieri P. Regulatory RNAs: role as scaffolds assembling protein complexes and their epigenetic deregulation. EXPLORATION OF TARGETED ANTI-TUMOR THERAPY 2024; 5:841-876. [PMID: 39280246 PMCID: PMC11390297 DOI: 10.37349/etat.2024.00252] [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: 01/30/2024] [Accepted: 04/26/2024] [Indexed: 09/18/2024] Open
Abstract
Recently, new data have been added to the interaction between non-coding RNAs (ncRNAs) and epigenetic machinery. Epigenetics includes enzymes involved in DNA methylation, histone modifications, and RNA modifications, and mechanisms underlying chromatin structure, repressive states, and active states operating in transcription. The main focus is on long ncRNAs (lncRNAs) acting as scaffolds to assemble protein complexes. This review does not cover RNA's role in sponging microRNAs, or decoy functions. Several lncRNAs were shown to regulate chromatin activation and repression by interacting with Polycomb repressive complexes and mixed-lineage leukemia (MLL) activating complexes. Various groups reported on enhancer of zeste homolog 2 (EZH2) interactions with regulatory RNAs. Knowledge of the function of these complexes opens the perspective to develop new therapeutics for cancer treatment. Lastly, the interplay between lncRNAs and epitranscriptomic modifications in cancers paves the way for new targets in cancer therapy. The approach to inhibit lncRNAs interaction with protein complexes and perspective to regulate epitrascriptomics-regulated RNAs may bring new compounds as therapeuticals in various types of cancer.
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Affiliation(s)
- Palmiro Poltronieri
- Agrofood Department, National Research Council, CNR-ISPA, 73100 Lecce, Italy
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3
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Khan K, Irfan M, Sattar AA, Faiz MB, Rahman AU, Athar H, Calina D, Sharifi-Rad J, Cho WC. LncRNA SNHG6 role in clinicopathological parameters in cancers. Eur J Med Res 2023; 28:363. [PMID: 37735423 PMCID: PMC10515066 DOI: 10.1186/s40001-023-01358-2] [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: 01/14/2023] [Accepted: 09/10/2023] [Indexed: 09/23/2023] Open
Abstract
RNA sequencing has revealed that a substantial portion of the human genome undergoes transcription, yet a minimal fraction of these transcripts translates into proteins. LncRNAs, RNA molecules less than 200 nt in length, once deemed as transcriptional noise, have now emerged as crucial regulators of numerous cellular processes. This review focuses on the lncRNA SNHG6, aiming to elucidate its biogenesis, the pivotal roles it plays, and its mechanisms in facilitating the hallmarks of cancer. A comprehensive literature review and analysis were undertaken to delve into the biogenesis of SNHG6, its roles in cellular processes, and the mechanisms through which it contributes to the hallmarks of cancer. SNHG6 is a notable lncRNA, observed to be overexpressed in various cancer types; its perturbation has been linked to tumor progression, emphasizing its significance in oncogenesis. This lncRNA contributes to a range of cellular aberrations, influencing transcriptional, post-transcriptional, and epigenetic processes of mRNA, ultimately driving cancerous transformations. LncRNA SNHG6 serves as a potential biomarker and therapeutic target due to its association with tumorigenesis. Understanding its mechanism and role in cancer can pave the way for novel diagnostic and therapeutic strategies.
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Affiliation(s)
- Khushbukhat Khan
- Department of Healthcare Biotechnology, Atta-ur-Rahman School of Applied Biosciences (ASAB), National University of Sciences and Technology (NUST), Islamabad, 44000 Pakistan
| | - Muhammad Irfan
- Department of Healthcare Biotechnology, Atta-ur-Rahman School of Applied Biosciences (ASAB), National University of Sciences and Technology (NUST), Islamabad, 44000 Pakistan
| | - Areej Abdul Sattar
- Department of Healthcare Biotechnology, Atta-ur-Rahman School of Applied Biosciences (ASAB), National University of Sciences and Technology (NUST), Islamabad, 44000 Pakistan
| | - Manal Bint Faiz
- Department of Healthcare Biotechnology, Atta-ur-Rahman School of Applied Biosciences (ASAB), National University of Sciences and Technology (NUST), Islamabad, 44000 Pakistan
| | - Anees ur Rahman
- Department of Healthcare Biotechnology, Atta-ur-Rahman School of Applied Biosciences (ASAB), National University of Sciences and Technology (NUST), Islamabad, 44000 Pakistan
| | - Hafsa Athar
- Department of Healthcare Biotechnology, Atta-ur-Rahman School of Applied Biosciences (ASAB), National University of Sciences and Technology (NUST), Islamabad, 44000 Pakistan
| | - Daniela Calina
- Department of Clinical Pharmacy, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | | | - William C. Cho
- Department of Clinical Oncology, Queen Elizabeth Hospital, Kowloon, Hong Kong
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4
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Pathania AS. Crosstalk between Noncoding RNAs and the Epigenetics Machinery in Pediatric Tumors and Their Microenvironment. Cancers (Basel) 2023; 15:2833. [PMID: 37345170 DOI: 10.3390/cancers15102833] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 05/08/2023] [Accepted: 05/10/2023] [Indexed: 06/23/2023] Open
Abstract
According to the World Health Organization, every year, an estimated 400,000+ new cancer cases affect children under the age of 20 worldwide. Unlike adult cancers, pediatric cancers develop very early in life due to alterations in signaling pathways that regulate embryonic development, and environmental factors do not contribute much to cancer development. The highly organized complex microenvironment controlled by synchronized gene expression patterns plays an essential role in the embryonic stages of development. Dysregulated development can lead to tumor initiation and growth. The low mutational burden in pediatric tumors suggests the predominant role of epigenetic changes in driving the cancer phenotype. However, one more upstream layer of regulation driven by ncRNAs regulates gene expression and signaling pathways involved in the development. Deregulation of ncRNAs can alter the epigenetic machinery of a cell, affecting the transcription and translation profiles of gene regulatory networks required for cellular proliferation and differentiation during embryonic development. Therefore, it is essential to understand the role of ncRNAs in pediatric tumor development to accelerate translational research to discover new treatments for childhood cancers. This review focuses on the role of ncRNA in regulating the epigenetics of pediatric tumors and their tumor microenvironment, the impact of their deregulation on driving pediatric tumor progress, and their potential as effective therapeutic targets.
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Affiliation(s)
- Anup S Pathania
- Department of Biochemistry and Molecular Biology & The Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE 68198, USA
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5
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Zhang Y, Yao C, Ju Z, Jiao D, Hu D, Qi L, Liu S, Wu X, Zhao C. Krüppel-like factors in tumors: Key regulators and therapeutic avenues. Front Oncol 2023; 13:1080720. [PMID: 36761967 PMCID: PMC9905823 DOI: 10.3389/fonc.2023.1080720] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Accepted: 01/09/2023] [Indexed: 01/26/2023] Open
Abstract
Krüppel-like factors (KLFs) are a group of DNA-binding transcriptional regulators with multiple essential functions in various cellular processes, including proliferation, migration, inflammation, and angiogenesis. The aberrant expression of KLFs is often found in tumor tissues and is essential for tumor development. At the molecular level, KLFs regulate multiple signaling pathways and mediate crosstalk among them. Some KLFs may also be molecular switches for specific biological signals, driving their transition from tumor suppressors to promoters. At the histological level, the abnormal expression of KLFs is closely associated with tumor cell stemness, proliferation, apoptosis, and alterations in the tumor microenvironment. Notably, the role of each KLF in tumors varies according to tumor type and different stages of tumor development rather than being invariant. In this review, we focus on the advances in the molecular biology of KLFs, particularly the regulations of several classical signaling pathways by these factors, and the critical role of KLFs in tumor development. We also highlight their strong potential as molecular targets in tumor therapy and suggest potential directions for clinical translational research.
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Affiliation(s)
- Yuchen Zhang
- School of Acupuncture-moxibustion and Tuina, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Chongjie Yao
- School of Acupuncture-moxibustion and Tuina, Shanghai University of Traditional Chinese Medicine, Shanghai, China,Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Ziyong Ju
- School of Acupuncture-moxibustion and Tuina, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Danli Jiao
- School of Acupuncture-moxibustion and Tuina, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Dan Hu
- School of Acupuncture-moxibustion and Tuina, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Li Qi
- School of Acupuncture-moxibustion and Tuina, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Shimin Liu
- School of Acupuncture-moxibustion and Tuina, Shanghai University of Traditional Chinese Medicine, Shanghai, China,Shanghai Research Institute of Acupuncture and Meridian, Shanghai, China
| | - Xueqing Wu
- Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China,*Correspondence: Chen Zhao, ; Xueqing Wu,
| | - Chen Zhao
- School of Acupuncture-moxibustion and Tuina, Shanghai University of Traditional Chinese Medicine, Shanghai, China,*Correspondence: Chen Zhao, ; Xueqing Wu,
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6
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Liu B, Pang K, Feng C, Liu Z, Li C, Zhang H, Liu P, Li Z, He S, Tu C. Comprehensive analysis of a novel cuproptosis-related lncRNA signature associated with prognosis and tumor matrix features to predict immunotherapy in soft tissue carcinoma. Front Genet 2022; 13:1063057. [PMID: 36568384 PMCID: PMC9768346 DOI: 10.3389/fgene.2022.1063057] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Accepted: 11/24/2022] [Indexed: 12/12/2022] Open
Abstract
Background: A crucial part of the malignant processes of soft tissue sarcoma (STS) is played by cuproptosis and lncRNAs. However, the connection between cuproptosis-related lncRNAs (CRLs) and STS is nevertheless unclear. As a result, our objective was to look into the immunological activity, clinical significance, and predictive accuracy of CRLs in STS. Methods: The Cancer Genome Atlas (TCGA) and Genotype-Tissue Expression (GTEx) databases, respectively, provided information on the expression patterns of STS patients and the general population. Cuproptosis-related lncRNA signature (CRLncSig) construction involved the univariate, multivariate, and least absolute shrinkage and selection operator Cox regression analysis. The predictive performance of the CRLncSig was evaluated using a serial analysis. Further research was done on the connections between the CRLncSig and the tumor immune milieu, somatic mutation, immunotherapy response, and chemotherapeutic drug susceptibility. Notably, an in vitro investigation served to finally validate the expression of the hallmark CRLs. Results: A novel efficient CRLncSig composed of seven CRLs was successfully constructed. Additionally, the low-CRLncSig group's prognosis was better than that of the high-CRLncSig group's based on the new CRLncSig. The innovative CRLncSig then demonstrated outstanding, consistent, and independent prognostic and predictive usefulness for patients with STS, according to the evaluation and validation data. The low-CRLncSig group's patients also displayed improved immunoreactivity phenotype, increased immune infiltration abundance and checkpoint expression, and superior immunotherapy response, whereas those in the high-CRLncSig group with worse immune status, increased tumor stemness, and higher collagen levels in the extracellular matrix. Additionally, there is a noticeable disparity in the sensitivity of widely used anti-cancer drugs amongst various populations. What's more, the nomogram constructed based on CRLncSig and clinical characteristics of patients also showed good predictive ability. Importantly, Real-Time Quantitative Polymerase Chain Reaction (RT-qPCR) demonstrated that the signature CRLs exhibited a significantly differential expression level in STS cell lines. Conclusion: In summary, this study revealed the novel CRLncSig could be used as a promising predictor for prognosis prediction, immune activity, tumor immune microenvironment, immune response, and chemotherapeutic drug susceptibility in patients with STS. This may provide an important direction for the clinical decision-making and personalized therapy of STS.
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Affiliation(s)
- Binfeng Liu
- Department of Orthopaedics, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China,Hunan Key Laboratory of Tumor Models and Individualized Medicine, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Ke Pang
- Department of Orthopaedics, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China,Hunan Key Laboratory of Tumor Models and Individualized Medicine, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Chengyao Feng
- Department of Orthopaedics, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China,Hunan Key Laboratory of Tumor Models and Individualized Medicine, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Zhongyue Liu
- Department of Orthopaedics, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China,Hunan Key Laboratory of Tumor Models and Individualized Medicine, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Chenbei Li
- Department of Orthopaedics, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China,Hunan Key Laboratory of Tumor Models and Individualized Medicine, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Haixia Zhang
- Department of Oncology, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Ping Liu
- Department of Oncology, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Zhihong Li
- Department of Orthopaedics, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China,Hunan Key Laboratory of Tumor Models and Individualized Medicine, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Shasha He
- Department of Oncology, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China,*Correspondence: Shasha He, ; Chao Tu,
| | - Chao Tu
- Department of Orthopaedics, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China,Hunan Key Laboratory of Tumor Models and Individualized Medicine, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China,*Correspondence: Shasha He, ; Chao Tu,
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7
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Deng W, Zhang Y, Fang P, Shi H, Yang S. Silencing lncRNA Snhg6 mitigates bleomycin-induced pulmonary fibrosis in mice via miR-26a-5p/TGF-β1-smads axis. ENVIRONMENTAL TOXICOLOGY 2022; 37:2375-2387. [PMID: 35785413 DOI: 10.1002/tox.23603] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 04/28/2022] [Accepted: 06/09/2022] [Indexed: 06/15/2023]
Abstract
Idiopathic pulmonary fibrosis (IPF) is an interstitial pulmonary disease with slow onset and high mortality. Epithelial-mesenchymal transition (EMT) is a significant condition for tissue fibrosis, and lncRNA-Snhg6 (small nucleolar RNA host gene 6) is related to EMT in some cancer cells, but its role in pulmonary fibrosis remains obscure. Here, we found that TGF-β1 and Snhg6 were up-regulated in lung tissues of BLM-induced lung fibrosis mouse, and Snhg6 expression was significantly increased in primary lung fibroblasts after BLM treatment. Snhg6 knockdown notably alleviated the pulmonary dysfunction, and the increase of fibrosis area and collagen deposition induced by BLM. MiR-26a-5p was downregulated in BLM-induced fibrotic lung tissues, and it was negatively regulated by Snhg6. Silencing Snhg6 markedly alleviated the TGF-β1-induced increase in fibrotic marker expression, cell proliferation, migration and differentiation, as well as the nuclear transport of p-Smad2/3 by modulating miR-26a-5p expression in mouse lung fibroblasts. Moreover, overexpressing Snhg6-induced collagen accumulation and fibroblast activation in fibroblasts, which was reversed by treatment with miR-26a-5p mimic or oxymatrine (an inhibitor of TGF-β1-Smads pathway). Interestingly, silencing Snhg6 in vivo mitigated BLM-driven pulmonary fibrosis by regulating the miR-26a-5p/TGF-β1-Smads axis. Our data revealed that Snhg6 contributed to the process of BLM-driven lung fibrosis in mouse by modulating the miR-26a-5p/TGF-β1-Smads axis, suggesting that Snhg6 might be a therapeutic target for lung fibrosis.
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Affiliation(s)
- Wenjing Deng
- Department of Pulmonary and Critical Care Medicine, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Yalong Zhang
- Department of Pediatrics, The Second Affiliated Hospital of Air Force Military Medical University, Xi'an, China
| | - Ping Fang
- Department of Pulmonary and Critical Care Medicine, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Hongyang Shi
- Department of Pulmonary and Critical Care Medicine, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Shuanying Yang
- Department of Pulmonary and Critical Care Medicine, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
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8
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Zhang Y, He R, Lei X, Mao L, Yin Z, Zhong X, Cao W, Zheng Q, Li D. Comprehensive Analysis of a Ferroptosis-Related lncRNA Signature for Predicting Prognosis and Immune Landscape in Osteosarcoma. Front Oncol 2022; 12:880459. [PMID: 35837104 PMCID: PMC9273977 DOI: 10.3389/fonc.2022.880459] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 05/25/2022] [Indexed: 12/19/2022] Open
Abstract
Research on the implications of ferroptosis in tumors has increased rapidly in the last decades. There are evidences that ferroptosis is involved in several aspects of cancer biology, including tumor progression, metastasis, immunomodulation, and therapeutic response. Nonetheless, the interaction between ferroptosis-related lncRNAs (FRLs) and the osteosarcoma immune microenvironment is poorly understood. In this study, a risk model composed of FRLs was developed using univariate and LASSO Cox regression analyses. On the basis of this model, FRL scores were calculated to systematically explore the role of the model in predicting the prognosis and immune characteristics of osteosarcoma patients. Survival analysis showed that osteosarcoma samples with lower FRL-score had better overall survival. After predicting the abundance of immune cells in osteosarcoma microenvironment by single-sample gene-set enrichment analysis (ssGSEA) and ESTIMATE analysis, we found that the FRL-score could distinguish immune function, immune score, stromal score, tumor purity, and tumor infiltration of immune cells in different osteosarcoma patients. In addition, FRL-score was also associated with immune checkpoint gene expression and half-maximal inhibitory concentration of chemotherapeutic agents. Finally, we confirmed that knockdown of RPARP-AS1 suppressed the malignant activity of osteosarcoma cells in vitro experiments. In general, the FRL-based prognostic signature could promote our understanding of the immune microenvironment characteristics of osteosarcoma and guide more effective treatment regimens.
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Affiliation(s)
- Yiming Zhang
- Department of Orthopedics, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Rong He
- Cancer Institute, The Affiliated People’s Hospital of Jiangsu University, Zhenjiang, China
| | - Xuan Lei
- Department of Burn and Plastic Surgery, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Lianghao Mao
- Department of Orthopedics, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Zhengyu Yin
- Department of Orthopedics, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Xinyu Zhong
- Department of Orthopedics, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Wenbing Cao
- Department of Orthopedics, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Qiping Zheng
- Department of Hematological Laboratory Science, Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
- Shenzhen Academy of Peptide Targeting Technology at Pingshan, and Shenzhen Tyercan Bio-Pharm Co., Ltd., Shenzhen, China
- *Correspondence: Dapeng Li, ; Qiping Zheng,
| | - Dapeng Li
- Department of Orthopedics, Affiliated Hospital of Jiangsu University, Zhenjiang, China
- *Correspondence: Dapeng Li, ; Qiping Zheng,
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9
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Yang K, Wang F, Li K, Peng G, Yang H, Xu H, Xiang Y, Sun H. N6-methyladenosine Modification-Related Long Non-Coding RNAs are Potential Biomarkers for Predicting the Prognosis of Patients With Osteosarcoma. Technol Cancer Res Treat 2022; 21:15330338221085354. [PMID: 35422168 PMCID: PMC9019337 DOI: 10.1177/15330338221085354] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Background: The role of N6-methyladenosine (m6A)-related long non-coding RNAs (lncRNAs) in osteosarcoma (OS) has not been fully studied yet. We aimed to identify m6A-related lncRNAs that could act as prognostic biomarkers for OS. Methods: Pearson correlation was performed to identify m6A-related lncRNAs. Univariate and multivariate Cox regression analyses were performed to construct the risk model and assess whether the risk score was an independent prognostic factor for patients with OS. Gene Set Enrichment Analysis (GSEA) was performed to analyze the functions of genes in high-risk and low-risk groups. StarBase and Cytoscape were used to construct a competing endogenous RNA (ceRNA) network based on m6A-related prognostic lncRNA signature. Gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses were performed to analyze the function of genes involved in the ceRNA network. Results: We extracted 122 common lncRNAs from TCGA and Gene Expression Omnibus (GEO) databases. Pearson correlation results revealed 59 significant m6A-related lncRNAs in The Cancer Genome Atlas (TCGA) database, from which 2 were screened to construct a risk signature in TCGA dataset, which was then validated in the GEO dataset. A corresponding risk score was calculated and shown to be an independent prognostic factor for patients with OS. Enrichment analysis indicated that cell proliferation-related biological processes were more common in the high-risk group, while immune-related biological processes were more common in the low-risk group. Moreover, we established a nomogram that had a good ability to predict the overall survival of patients with OS. Additionally, a ceRNA network based on small nucleolar RNA host gene 7 (SNHG7) and small nucleolar RNA host gene 12 (SNHG12) was constructed, with genes that were enriched in hepatocellular carcinoma, gastric cancer, and non-small-cell lung cancer pathways. Conclusion: Our study revealed the prognostic role of m6A-related lncRNAs in OS and identified SNHG7 and SNHG12 as potential biomarkers for predicting the prognosis of patients with OS. These findings have enriched our understanding of the role of m6A modification in the dysregulation of lncRNAs in OS.
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Affiliation(s)
- Kun Yang
- 74720Department of Orthopaedics, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Fengyan Wang
- 74720Department of Orthopaedics, The Affiliated Hospital of Guizhou Medical University, Guiyang, China.,School of Clinical Medicine, 74628Guizhou Medical University, Guiyang, China.,School of Medicine, Soochow University, Suzhou, China
| | - Ke Li
- 56663Department of Respiratory and Critical Care Medicine, Guizhou Provincial People's Hospital, Guiyang, China
| | - Guoxuan Peng
- School of Clinical Medicine, 74628Guizhou Medical University, Guiyang, China
| | - Hua Yang
- 74720Department of Orthopaedics, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Hong Xu
- School of Clinical Medicine, 74628Guizhou Medical University, Guiyang, China
| | - Yang Xiang
- 74720Department of Orthopaedics, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Hong Sun
- 74720Department of Orthopaedics, The Affiliated Hospital of Guizhou Medical University, Guiyang, China.,School of Clinical Medicine, 74628Guizhou Medical University, Guiyang, China
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10
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Zhang Y, Li R, Ding X, He M, Zhang R. Long noncoding RNA SNHG6 promotes oesophageal squamous cell carcinoma by downregulating the miR-101-3p/EZH2 pathway. J Biochem Mol Toxicol 2021; 36:e22959. [PMID: 34766670 DOI: 10.1002/jbt.22959] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 09/01/2021] [Accepted: 10/26/2021] [Indexed: 12/28/2022]
Abstract
Long noncoding RNAs (LncRNAs) have been reported to play a vital role in the development of oesophageal squamous cell carcinoma (OSCC). Our previous study revealed that the significant upregulation of the LncRNA small nucleolar RNA host gene 6 (SNHG6) in OSCC promotes OSCC tumourigenesis. However, the mechanisms underlying the dynamics of SNHG6 expression in OSCC have rarely been studied. In this study, we verified the tumour-promoting effect of SNHG6 through sponging miR-101-3p, and their levels were negatively correlated in human samples of OSCC. In addition, miR-101-3p overexpression reversed the effect of SNHG6. Moreover, we confirmed that SNHG6/miR-101-3p affects OSCC by regulating the expression of the enhancer of zeste 2 (EZH2). The effect of EZH2 silencing resembled closely that of SNHG6 knockdown. EZH2 silencing inhibited the expression of protein cyclin D1 and β-catenin, but in contrast, it enhanced the expression of E-cadherin. These findings demonstrated the oncogenic role of SNHG6, which promotes OSCC progression by regulating the expression of EZH2 through its interaction with miR-101-3p. These findings may help in improving the diagnosis and treatment methods of OSCC.
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Affiliation(s)
- Yueli Zhang
- Department of Clinical Pharmacy, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, China
| | - Ruijia Li
- Department of Pharmacy, The Eight Hospital of Xian, Xian, China
| | - Xiaoliang Ding
- Department of Clinical Pharmacy, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, China
| | - Meng He
- Department of Clinical Pharmacy, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, China
| | - Rui Zhang
- Emergency Department, Shaanxi Provincial Cancer Hospital, College of Medicine, Xi'an Jiaotong University, Xian, China
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11
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Kaucsár T, Róka B, Tod P, Do PT, Hegedűs Z, Szénási G, Hamar P. Divergent regulation of lncRNA expression by ischemia in adult and aging mice. GeroScience 2021; 44:429-445. [PMID: 34697716 PMCID: PMC8811094 DOI: 10.1007/s11357-021-00460-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Accepted: 09/11/2021] [Indexed: 12/24/2022] Open
Abstract
Elderly patients have increased susceptibility to acute kidney injury (AKI). Long noncoding RNAs (lncRNA) are key regulators of cellular processes, and have been implicated in both aging and AKI. Our aim was to study the effects of aging and ischemia-reperfusion injury (IRI) on the renal expression of lncRNAs. Adult and old (10- and 26-30-month-old) C57BL/6 N mice were subjected to unilateral IRI followed by 7 days of reperfusion. Renal expression of 90 lncRNAs and mRNA expression of injury, regeneration, and fibrosis markers was measured by qPCR in the injured and contralateral control kidneys. Tubular injury, regeneration, and fibrosis were assessed by histology. Urinary lipocalin-2 excretion was increased in old mice prior to IRI, but plasma urea was similar. In the control kidneys of old mice tubular cell necrosis and apoptosis, mRNA expression of kidney injury molecule-1, fibronectin-1, p16, and p21 was elevated. IRI increased plasma urea concentration only in old mice, but injury, regeneration, and fibrosis scores and their mRNA markers were similar in both age groups. AK082072 and Y lncRNAs were upregulated, while H19 and RepA transcript were downregulated in the control kidneys of old mice. IRI upregulated Miat, Igf2as, SNHG5, SNHG6, RNCR3, Malat1, Air, Linc1633, and Neat1 v1, while downregulated Linc1242. LncRNAs H19, AK082072, RepA transcript, and Six3os were influenced by both aging and IRI. Our results indicate that both aging and IRI alter renal lncRNA expression suggesting that lncRNAs have a versatile and complex role in aging and kidney injury. An Ingenuity Pathway Analysis highlighted that the most downregulated H19 may be linked to aging/senescence through p53.
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Affiliation(s)
- Tamás Kaucsár
- Institute of Translational Medicine, Semmelweis University, Budapest, Hungary
| | - Beáta Róka
- Institute of Translational Medicine, Semmelweis University, Budapest, Hungary
| | - Pál Tod
- Institute of Translational Medicine, Semmelweis University, Budapest, Hungary
- Institute for Translational Medicine, Medical School, University of Pécs, Pécs, Hungary
| | - Phuong Thanh Do
- Institute of Translational Medicine, Semmelweis University, Budapest, Hungary
| | - Zoltán Hegedűs
- Institute of Biophysics, Biological Research Centre, Eötvös Loránd Research Network (ELKH), Szeged, Hungary
- Department of Biochemistry and Medical Chemistry, Medical School, University of Pécs, Pécs, Hungary
| | - Gábor Szénási
- Institute of Translational Medicine, Semmelweis University, Budapest, Hungary
| | - Péter Hamar
- Institute of Translational Medicine, Semmelweis University, Budapest, Hungary.
- Institute for Translational Medicine, Medical School, University of Pécs, Pécs, Hungary.
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12
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Identification of a seven-long non-coding RNA signature associated with Jab1/CSN5 in predicting hepatocellular carcinoma. Cell Death Discov 2021; 7:178. [PMID: 34247194 PMCID: PMC8272716 DOI: 10.1038/s41420-021-00560-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 05/10/2021] [Accepted: 06/13/2021] [Indexed: 12/23/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is a leading cause of cancer death worldwide, accounting for over 700,000 deaths each year. The lack of predictive and prognostic biomarkers for HCC, with effective therapy, remains a significant challenge for HCC management. Long non-coding RNAs (lncRNAs) play a key role in tumorigenesis and have clinical value as potential biomarkers in the early diagnosis and prediction of HCC. Jun activation domain-binding protein 1 (Jab1, also known as COP9 signalosome subunit 5, CSN5) is a potential oncogene that plays a critical role in the occurrence of HCC. Here, we performed a comprehensive analysis for Jab1/CSN5-associated lncRNAs to predict the prognosis of HCC. The differentially expressed (DE) lncRNAs between in HCC were analyzed based on the TCGA RNA-seq data. We detected 1031 upregulated lncRNAs in 371 HCC tissues and identified a seven-lncRNA signature strongly correlated with Jab1/CSN5 (SNHG6, CTD3065J16.9, LINC01604, CTD3025N20.3, KB-1460A1.5, RP13-582O9.7, and RP11-29520.2). We further evaluated the prognostic significance of these lncRNAs by GEPIA (http://gepia.cancer-pku.cn/). The expression data in 364 liver tumors indicated that this seven-lncRNA signature could better predict worse survival in HCC patients. Moreover, 35 clinical HCC samples were evaluated to assess the validity and reproducibility of the bioinformatic analysis. We found that the targeted lncRNAs were upregulated, with a strong association with Jab1/CSN5 and prognostic value in HCC. Functional enrichment analysis by Gene Ontology (GO) showed that these seven prognostic lncRNAs exhibit oncogenic properties and are associated with prominent hallmarks of cancer. Overall, our findings demonstrate the clinical implication of Jab1/CSN5 with the seven‐lncRNAs in predicting survival for patients with HCC.
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13
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Lim TB, Foo SYR, Chen CK. The Role of Epigenetics in Congenital Heart Disease. Genes (Basel) 2021; 12:genes12030390. [PMID: 33803261 PMCID: PMC7998561 DOI: 10.3390/genes12030390] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 02/23/2021] [Accepted: 03/06/2021] [Indexed: 02/06/2023] Open
Abstract
Congenital heart disease (CHD) is the most common birth defect among newborns worldwide and contributes to significant infant morbidity and mortality. Owing to major advances in medical and surgical management, as well as improved prenatal diagnosis, the outcomes for these children with CHD have improved tremendously so much so that there are now more adults living with CHD than children. Advances in genomic technologies have discovered the genetic causes of a significant fraction of CHD, while at the same time pointing to remarkable complexity in CHD genetics. For this reason, the complex process of cardiogenesis, which is governed by multiple interlinked and dose-dependent pathways, is a well investigated process. In addition to the sequence of the genome, the contribution of epigenetics to cardiogenesis is increasingly recognized. Significant progress has been made dissecting the epigenome of the heart and identified associations with cardiovascular diseases. The role of epigenetic regulation in cardiac development/cardiogenesis, using tissue and animal models, has been well reviewed. Here, we curate the current literature based on studies in humans, which have revealed associated and/or causative epigenetic factors implicated in CHD. We sought to summarize the current knowledge on the functional role of epigenetics in cardiogenesis as well as in distinct CHDs, with an aim to provide scientists and clinicians an overview of the abnormal cardiogenic pathways affected by epigenetic mechanisms, for a better understanding of their impact on the developing fetal heart, particularly for readers interested in CHD research.
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Affiliation(s)
- Tingsen Benson Lim
- Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore;
| | - Sik Yin Roger Foo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore;
- Genome Institute of Singapore, Agency for Science, Technology and Research, Singapore 138672, Singapore
| | - Ching Kit Chen
- Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore;
- Division of Cardiology, Department of Paediatrics, Khoo Teck Puat-National University Children’s Medical Institute, National University Health System, Singapore 119228, Singapore
- Correspondence:
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Silencing of Long Noncoding RNA SNHG6 Inhibits Esophageal Squamous Cell Carcinoma Progression via miR-186-5p/HIF1α Axis. Dig Dis Sci 2020; 65:2844-2852. [PMID: 31853782 DOI: 10.1007/s10620-019-06012-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Accepted: 12/11/2019] [Indexed: 12/12/2022]
Abstract
AIMS Long noncoding RNA (lncRNA) small nucleolar RNA host gene 6 (SNHG6) has been shown to be upregulated in esophageal squamous cell carcinoma (ESCC). However, its detailed function in ESCC remains unknown. We investigated its specific roles in ESCC cell proliferation, invasion, and migration. METHODS Gene expression was evaluated by quantitative reverse transcriptase polymerase chain reaction and western blot. The subcellular localization of lncRNA SNHG6 was determined using subcellular location assay. Luciferase reporter assay and RNA pull-down assay were applied to determine the interaction between lncRNA SNHG6, miR-186-5p, and hypoxia-inducible factor 1α (HIF1α). The cell proliferation, migration, and invasion abilities were evaluated by using cell count kit-8, colony formation assay, and transwell migration and invasion assays. RESULTS LncRNA SNHG6 and HIF1α were upregulated, while miR-186-5p was downregulated in ESCC tissues and cell lines. Knockdown of lncRNA SNHG6 inhibits ESCC cell proliferation, migration, and invasion. A negative correlation between lncRNA SNHG6 and miR-186-5p expression was found in ESCC tissues. Similarly, there is a positive correlation between lncRNA SNHG6 and HIF1α expression in ESCC tissues. Conversely, miR-186-5p expression was negatively correlated with HIF1α expression in ESCC tissues. Furthermore, lncRNA SNHG6 was identified as a decoy for miR-186-5p, thereby promoting the expression of miR-186-5p target HIF1α. More significantly, restoration of SNHG6 or HIF1α could reverse the inhibitory effect of miR-186-5p on ESCC cell proliferation, migration, and invasion. CONCLUSIONS Downregulation of SNHG6 inhibited the proliferation, migration, and invasion of ESCC cells through regulating miR-186-5p/HIF1α axis, providing a novel therapeutic target for ESCC.
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Ren Z, Hu R. Downregulation of long noncoding RNA SNHG6 rescued propofol-induced cytotoxicity in human induced pluripotent stem cell-derived cardiomyocytes. Cardiovasc Diagn Ther 2020; 10:811-819. [PMID: 32968636 DOI: 10.21037/cdt-20-443] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Background Propofol (PPF) overdose is a rare but lethal condition, which may lead to severe cardiac failure. In this study, we established an in vitro PPF-induced cardiac cytotoxicity model, and investigate the functional role of long non-coding RNA (lncRNA) small nucleolar RNA host gene 6 (SNHG6). Methods Human induced pluripotent stem cell-derived cardiomyocytes (HiPSC-CMs) were exposed to PPF in vitro. PPF-induced cytotoxic effects were measured. PPF-induced SNHG6 expression change in HiPSC-CMs were monitored by qRT-PCR. SNHG6 was downregulated in HiPSC-CMs to examine its role in PPF-induced cardiac cytotoxicity. The expression of competing endogenous RNA (ceRNA) candidate of SNHG6, human microRNA-186-5p (hsa-miR-186-5p) was also investigated in PPF-exposed HiPSC-CMs. Functions of hsa-miR-186-5p were further investigated in PPF-exposed and SNHG6-downregulated HiPSC-CMs. Results PPF induced significant cytotoxicity, as well as SNHG6 upregulation in HiPSC-CMs. SNHG6 downregulation had rescuing effects on PPF-induced cardiac cytotoxicity. Dual-luciferase activity assay confirmed that hsa-miR-186-5p was the ceRNA candidate of SNHG6. QRT-PCR showed hsa-miR-186-5p expression was reversely correlated with SNHG6 in PPF-exposed HiPSC-CMs. Suppressing hsa-miR-186-5p reduced the rescuing effects of SNHG6-downregulation on PPF-induced cardiac cytotoxicity. Conclusions SNHG6/hsa-miR-186-5p can modulate PPF-induced cardiac cytotoxicity in HiPSC-CMs, and thus may be a future drug target to prevent PPF infusion syndrome.
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Affiliation(s)
- Zhongguo Ren
- Department of Anesthesiology, The People's Hospital of China Three Gorges University, Yichang, China
| | - Rong Hu
- Department of Geriatrics, The People's Hospital of China Three Gorges University, Yichang, China
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16
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Shen H, Mo Q, Xu X, Liu B. The prognostic value of lncRNA SNHG6 in cancer patients. Cancer Cell Int 2020; 20:286. [PMID: 32655318 PMCID: PMC7339569 DOI: 10.1186/s12935-020-01383-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Accepted: 06/26/2020] [Indexed: 01/01/2023] Open
Abstract
Background Although tremendous improvement has been seen in cancer diagnosis and treatment, its morbidity and mortality is still high due to lack of ideal biomarkers. An increasing number of studies have demonstrated that the expression of lncRNA small nucleolar RNA host gene 6 (SNHG6) has significantly negative correlation with various cancer prognosis. The present meta-analysis was aimed to clarify the potential of clinical application of SNHG6 in cancers. Methods A detailed literature review was conducted by searching through PubMed and Web of Science databases. The expression level of SNHG6, clinicopathological features and survival outcomes were extracted from eligible studies. Pooled analysis was performed with a DerSimonian-Laird random-effect model. The results were further validated through the Cancer Genome Atlas (TCGA) dataset. Results Five studies with a total of 487 cases were finally included in this meta-analysis. The results demonstrated that a high expression of SNHG6 was significantly associated with an increased risk of poor overall survival (OS) in cancer patients (HR = 2.06, 95% CI 1.56–2.73). Similar results from the TCGA dataset further confirmed our findings. Conclusions Overexpressed SNHG6 was significantly associated with poor prognosis in various cancers. Therefore, SNHG6 may become a novel molecular target for treatment and prognostic evaluation.
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Affiliation(s)
- Haixiang Shen
- Department of Urology, First Affiliated Hospital, School of Medicine, Zhejiang University, Qingchun Road 79, Hangzhou, 310003 Zhejiang China
| | - Qiwang Mo
- Department of Urology, First Affiliated Hospital, School of Medicine, Zhejiang University, Qingchun Road 79, Hangzhou, 310003 Zhejiang China.,Department of Urology, Shengzhou People's Hospital, Shengzhou, 312400 Zhejiang China
| | - Xin Xu
- Department of Urology, First Affiliated Hospital, School of Medicine, Zhejiang University, Qingchun Road 79, Hangzhou, 310003 Zhejiang China
| | - Ben Liu
- Department of Urology, First Affiliated Hospital, School of Medicine, Zhejiang University, Qingchun Road 79, Hangzhou, 310003 Zhejiang China
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17
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Wang HS, Zhang W, Zhu HL, Li QP, Miao L. Long noncoding RNA SNHG6 mainly functions as a competing endogenous RNA in human tumors. Cancer Cell Int 2020; 20:219. [PMID: 32518528 PMCID: PMC7275348 DOI: 10.1186/s12935-020-01303-x] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Accepted: 05/28/2020] [Indexed: 02/06/2023] Open
Abstract
Increased expression of the small nucleolar RNA host gene 6 (SNHG6) has been reported in different cancers, such as hepatocellular carcinoma, colorectal cancer, and lung cancer. The high expression level of SNHG6 is associated with tumor progression and poor prognosis. This paper provides an overview of recent studies on the oncogenic role and potential clinical utilities of SNHG6. Upregulated SNHG6 arrests tumor cell cycle and reduces apoptosis but promotes migration, invasion, metastasis, epithelial-mesenchymal transition (EMT), and chemoresistance in tumors. Mechanically, SNHG6 primarily sponges tumor suppressor microRNA (miRNA), functioning as a competing endogenous RNA. Once sponged, miRNA is unable to degrade, silence, or hamper the translation of its downstream, mostly oncogenic genes, ultimately driving cancer-related processes. Thus, SNHG6 might serve as a biomarker for cancer diagnosis and prognosis.
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Affiliation(s)
- Hui-Shan Wang
- Nanjing Medical University, Nanjing, Jiangsu Province China
| | - Wen Zhang
- Nanjing Medical University, Nanjing, Jiangsu Province China
| | - Han-Long Zhu
- Nanjing Medical University, Nanjing, Jiangsu Province China
| | - Quan-Peng Li
- Medical Center for Digestive Diseases, The Second Affiliated Hospital of Nanjing Medical University, 121 Jiangjiayuan, Nanjing, 210011 Jiangsu Province China
| | - Lin Miao
- Nanjing Medical University, Nanjing, Jiangsu Province China.,Medical Center for Digestive Diseases, The Second Affiliated Hospital of Nanjing Medical University, 121 Jiangjiayuan, Nanjing, 210011 Jiangsu Province China
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18
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Zhang S, Qiu D, Xie X, Shen Y. Clinicopathological and prognostic value of SNHG6 in cancers: a systematic review and a meta-analysis. BMC Cancer 2020; 20:343. [PMID: 32321469 PMCID: PMC7178593 DOI: 10.1186/s12885-020-06850-0] [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: 01/10/2020] [Accepted: 04/12/2020] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND Dysregulation of the long non-coding RNA small nucleolar RNA host gene 16 (lncRNA SNHG6) has been found in multiple cancers. However, a definite conclusion on the clinical value of lncRNA SNHG6 expression in human cancers has not been determined. The purpose of the present meta-analysis was to comprehensively elucidate the association between SNHG6 expression and clinical outcomes in cancers. METHODS A systematic search was performed through the PubMed, Web of Science, Chinese National Knowledge Infrastructure (CNKI), and Wangfang databases for relevant studies. The pooled hazard ratios (HRs) with 95% confidence intervals (CIs) were collected to estimate the prognostic value, and the odds ratios (ORs) with 95% CIs were used to evaluate the relationship between lncRNA SNHG6 expression and clinicopathological features, including tumor invasion depth, lymph node metastasis (LNM), distance metastasis (DM), and TNM stage. RESULTS In total, 914 patients from 13 studies were included in this meta-analysis. The pooled results suggested that evaluated SNHG6 expression could predict an unfavorable overall survival (OS) (HR = 2.04, 95% CI:1.56-2.52) with no heterogeneity (I2 = 0.0%, p = 0.996). Subgroup analysis indicated a significant association between high SNHG6 expression and shorter OS in those studies with digestive system cancers (HR = 2.05, 95% CI: 1.47-2.62), or with sample size < 70 (HR = 2.70, 95% CI: 1.29-4.11), or with multivariate analysis (HR = 2.04, 95% CI: 1.44-2.64). Moreover, elevated SNHG6 expression was positively associated with tumor invasion depth (OR = 1.76, 95% CI: 1.18-2.63), LNM (OR = 1.60, 95% CI: 1.18-2.17), DM (OR = 1.90, 95% CI: 1.37-2.64) and advanced TNM stage (OR = 1.88, 95% CI: 1.36-2.60) in patients with cancers. CONCLUSIONS High lncRNA SNHG6 expression was correlated with tumor invasion depth, LNM, DM, and advanced TNM stage, suggesting that SNHG6 may serve as a promising prognostic biomarker of human cancers.
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Affiliation(s)
- Shuo Zhang
- Department of Breast Surgery, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Traditional Chinese Medicine), Hangzhou, 310006, China
| | - Dandan Qiu
- Department of Urology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Traditional Chinese Medicine), Hangzhou, 310006, China
| | - Xiaohong Xie
- Department of Breast Surgery, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Traditional Chinese Medicine), Hangzhou, 310006, China.
| | - Yong Shen
- Department of Breast Surgery, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Traditional Chinese Medicine), Hangzhou, 310006, China
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Yao X, Lan Z, Lai Q, Li A, Liu S, Wang X. LncRNA SNHG6 plays an oncogenic role in colorectal cancer and can be used as a prognostic biomarker for solid tumors. J Cell Physiol 2020; 235:7620-7634. [PMID: 32239696 DOI: 10.1002/jcp.29672] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Accepted: 03/06/2020] [Indexed: 12/15/2022]
Abstract
Small nucleolar RNA host gene 6 (SNHG6) has been recognized as an oncogene in numerous cancers and overexpression of SNHG6 was found to promote colorectal cancer (CRC). Hence, we performed a meta-analysis to examine the clinical importance of the long noncoding RNA (lncRNA) SNHG6. Moreover, comprehensive identification of RNA-binding proteins-mass spectrometry (ChIRP-MS) was conducted to explore the carcinogenic mechanism of lncRNA SNHG6 in CRC. Fourteen studies conducted on 1,139 patients were included in this meta-analysis. We also constructed the protein-protein interactive (PPI) network in string based on the ChIRP-MS results and cytoscape was used to identify core modules in the PPI network, which were then analyzed using the bioinformatics websites, cancer single-cell state atlas (CancerSEA) and G:profilter. The clinical outcomes of the meta-analysis indicated that higher expression of SNHG6 was related with a poorer survival outcome (overall survival: hazard ratio (HR) = 1.92; 95% confidence interval [Cl]: 1.48, 2.49; p < .0001; disease-free survival: HR = 1.84; 95% Cl: 1.02, 3.34; p = .044), higher tumor stage (odds ratio [OR] = 3.35; 95% Cl: 2.57, 4.37; p < .0001), distant metastasis (OR = 1.83; 95% Cl: 1.11, 2.99; p = .017) and lymph node metastasis (OR = 1.33; 95% Cl: 0.93, 1.89; p = .119). The ChIRP-MS results showed that core Module 1 of the PPI was significant in ribosomes and core Module 2 was mainly related to spliceosomes and messenger RNA processing. In conclusion, a higher expression of SNHG6 was found to be associated with a poorer survival outcome, high tumor stage, and distant metastasis in various solid tumors. SNHG6 was also found to be able to affect the processes of transcription and translation to promote CRC.
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Affiliation(s)
- Xiang Yao
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Zhixian Lan
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Qiuhua Lai
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Aimin Li
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Side Liu
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Xinke Wang
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China
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Li K, Jiang Y, Xiang X, Gong Q, Zhou C, Zhang L, Ma Q, Zhuang L. Long non-coding RNA SNHG6 promotes the growth and invasion of non-small cell lung cancer by downregulating miR-101-3p. Thorac Cancer 2020; 11:1180-1190. [PMID: 32147945 PMCID: PMC7180593 DOI: 10.1111/1759-7714.13371] [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: 12/15/2019] [Revised: 02/11/2020] [Accepted: 02/12/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND The aim of this study was to determine the function of long non-coding RNA small nucleolar RNA host gene 6 (SNHG6) in non-small cell lung cancer (NSCLC) and its underlying mechanisms. METHODS The association of SNHG6 or miR-101-3p with clinicopathological characteristics and prognosis in patents with NSCLC was assessed by TCGA dataset. Cell proliferation and invasion were evaluated by MTT and Transwell assays and SNHG6-specific binding with miR-101-3p was verified by bioinformatic analysis, luciferase gene report and RNA immunoprecipitation assays. qRT-PCR and Western blot was used to assess the effects of SNHG6 on the expression of miR-101-3p and chromodomain Y like (CDYL) in NSCLC cells. A xenograft tumor model in vivo was established to observe the effects of SNHG6 knockdown on tumor growth. RESULTS We found that increased expression of SNHG6 was associated with pathological stage and lymph node infiltration, and acted as an independent prognostic factor of tumor recurrence in patients with NSCLC. Silencing SNHG6 expression repressed cell growth and invasion in vitro and in vivo, but overexpression of SNHG6 reversed these effects. Furthermore, SNHG6 was identified to act as a sponge of miR-101-3p, which could reduce cell proliferation and attenuate SNHG6-induced CDYL expression. Low expression of miR-101-3p or high expression of CDYL was related to poor survival in patients with NSCLC. CONCLUSIONS Our findings demonstrated that lncRNA SNHG6 contributed to the proliferation and invasion of NSCLC by downregulating miR-101-3p.
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Affiliation(s)
- Ke Li
- Cancer Biotherapy Center, Yunnan Cancer Hospital, The Third Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Yongxin Jiang
- Cancer Institute, Yunnan Cancer Hospital, The Third Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Xudong Xiang
- Choracic Surgery, Yunnan Cancer Hospital, The Third Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Quan Gong
- Department of Palliative Medicine, Yunnan Cancer Hospital, The Third Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Chunyan Zhou
- Department of Palliative Medicine, Yunnan Cancer Hospital, The Third Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Lijuan Zhang
- Department of Palliative Medicine, Yunnan Cancer Hospital, The Third Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Qianli Ma
- Choracic Surgery, Yunnan Cancer Hospital, The Third Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Li Zhuang
- Department of Palliative Medicine, Yunnan Cancer Hospital, The Third Affiliated Hospital of Kunming Medical University, Kunming, China
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Wang H, Wang L, Tang L, Luo J, Ji H, Zhang W, Zhou J, Li Q, Miao L. Long noncoding RNA SNHG6 promotes proliferation and angiogenesis of cholangiocarcinoma cells through sponging miR-101-3p and activation of E2F8. J Cancer 2020; 11:3002-3012. [PMID: 32226515 PMCID: PMC7086249 DOI: 10.7150/jca.40592] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Accepted: 02/02/2020] [Indexed: 12/13/2022] Open
Abstract
Cholangiocarcinoma (CCA) development is an extremely complex process with alterations occurring in numerous genes. SNHG6, a validated lncRNA, has been reported to regulate the expression of multiple tumor-related genes in hepatocellular carcinoma, colorectal cancer and breast cancer. Here, we elucidated the function and possible molecular mechanisms of SNHG6 in human CCA cells. Our results proved that the expression SNHG6 was upregulated in CCA tissues and cell lines. Ectopic expression of SNHG6 promoted cell proliferation, cell cycle progression, migration, and angiogenesis in CCA cells, whereas knockdown of SNHG6 repressed these cellular processes. Further mechanistic studies revealed that SNHG6 could compete with the transcription factor E2F8 to bind with miR-101-3p, thus affecting E2F8 expression. Taken together, these results provided a comprehensive analysis of the role of SNHG6 in CCA cells and offered important clues to understand the key roles of competing endogenous RNA (ceRNA) mechanisms in human cholangiocarcinoma.
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Affiliation(s)
- Huishan Wang
- Nanjing Medical University, 101 Longmian Avenue, Jiangning District, Nanjing 211166, Jiangsu Province, China
| | - Li Wang
- Nanjing Medical University, 101 Longmian Avenue, Jiangning District, Nanjing 211166, Jiangsu Province, China
| | - Lingyu Tang
- Taizhou hospital of traditional Chinese medicine, 86 Jichuandong Road, Hailing District, Taizhou 225300, Jiangsu Province, China
| | - Jing Luo
- Department of Thoracic Surgery, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, China
| | - Hao Ji
- Nanjing Medical University, 101 Longmian Avenue, Jiangning District, Nanjing 211166, Jiangsu Province, China
| | - Wen Zhang
- Nanjing Medical University, 101 Longmian Avenue, Jiangning District, Nanjing 211166, Jiangsu Province, China
| | - Jian Zhou
- Nanjing Medical University, 101 Longmian Avenue, Jiangning District, Nanjing 211166, Jiangsu Province, China
| | - Quanpeng Li
- Medical Center for Digestive Diseases, The Second Affiliated Hospital of Nanjing Medical University, 121 Jiangjiayuan, Nanjing 210011, Jiangsu Province, China
| | - Lin Miao
- Nanjing Medical University, 101 Longmian Avenue, Jiangning District, Nanjing 211166, Jiangsu Province, China
- Medical Center for Digestive Diseases, The Second Affiliated Hospital of Nanjing Medical University, 121 Jiangjiayuan, Nanjing 210011, Jiangsu Province, China
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Zhao S, Zhu H, Jiao R, Wu X, Ji G, Zhang X. Prognostic and clinicopathological significance of SNHG6 in human cancers: a meta-analysis. BMC Cancer 2020; 20:77. [PMID: 32000704 PMCID: PMC6993398 DOI: 10.1186/s12885-020-6530-3] [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: 12/16/2019] [Accepted: 01/13/2020] [Indexed: 12/23/2022] Open
Abstract
Background Recently, accumulating evidence has suggested that the aberrant expression of SNHG6 exists in a variety of tumors and has a correlation with poor clinical outcomes across cancer patients. Considering the inconsistent data among published studies, we aim to assess the prognostic effect of SNHG6 on malignancies. Methods We retrieved relevant publications in Web of Science, Embase, MEDLINE, PubMed and Cochrane Library based on predefined selection criteria, up to October 1, 2019. Pooled hazard ratios (HRs) and odds ratios (ORs) with 95% confidence intervals (CIs) were utilized to evaluate the correlation between SNHG6 and overall survival (OS), recurrence-free survival (RFS) and progression-free survival (PFS) as well as clinicopathology. Results In total, 999 patients from 14 articles were enrolled in our meta-analysis. The results revealed that augmented SNHG6 expression was significantly correlated with poor OS (HR = 2.20, 95% CI = 1.76–2.75, P < 0.001) and RFS (HR = 3.10, 95% CI = 1.90–5.07, P < 0.001), but not with PFS (HR = 2.11, 95% CI = 0.82–5.39, P = 0.120). In addition to lung cancer and ovarian cancer, subgroup analysis showed that the prognostic value of SNHG6 across multiple tumors was constant as the tumor type, sample size, and methods of data extraction changed. Moreover, cancer patients with enhanced SNHG6 expression were prone to advanced TNM stage (OR = 3.31, 95% CI = 2.46–4.45, P < 0.001), distant metastasis (OR = 4.67, 95% CI = 2.98–7.31, P < 0.001), lymph node metastasis (OR = 2.59, 95% CI = 1.41–4.77, P = 0.002) and deep tumor invasion (OR = 3.75, 95% CI = 2.10–6.69, P < 0.001), but not associated with gender, histological grade and tumor size. Conclusions SNHG6 may serve as a promising indicator in the prediction of prognosis and clinicopathological features in patients with different kinds of tumors.
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Affiliation(s)
- Si Zhao
- Medical Centre for Digestive Diseases, Second Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu Province, People's Republic of China
| | - Hanlong Zhu
- Medical Centre for Digestive Diseases, Second Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu Province, People's Republic of China
| | - Ruonan Jiao
- Medical Centre for Digestive Diseases, Second Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu Province, People's Republic of China
| | - Xueru Wu
- Medical Centre for Digestive Diseases, Second Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu Province, People's Republic of China
| | - Guozhong Ji
- Medical Centre for Digestive Diseases, Second Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu Province, People's Republic of China
| | - Xiuhua Zhang
- Medical Centre for Digestive Diseases, Second Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu Province, People's Republic of China.
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23
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Shan H, Guo D, Zhang S, Qi H, Liu S, Du Y, He Y, Wang B, Xu M, Yu X. SNHG6 modulates oxidized low-density lipoprotein-induced endothelial cells injury through miR-135a-5p/ROCK in atherosclerosis. Cell Biosci 2020; 10:4. [PMID: 31921409 PMCID: PMC6947907 DOI: 10.1186/s13578-019-0371-2] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Accepted: 12/26/2019] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Plenty of long non-coding RNAs (lncRNAs) play vital roles in the progression of atherosclerosis. Small nucleolar RNA host gene 6 (SNHG6) is a well known lncRNA that is aberrantly high expressed in atherosclerosis patients. However, its function and basic mechanism in atherosclerosis events have not been well clarified. METHODS The expression patterns of SNHG6, miR-135a-5p, ROCK1 and ROCK2 in clinical samples and cells were detected by RT-qPCR assays. Cell Counting Kit-8 (CCK-8), flow cytometry assays, ELISA and reactive oxygen species (ROS) and malondialdehyde (MDA) detection, were performed to assess cell viability, apoptosis, inflammation and oxidative stress, respectively. Western blot analysis was carried out to examine the protein levels of Bax, Bcl-2, and SNHG6. Luciferase reporter and RIP assays were used to confirm the true interaction between SNHG6 and miR-135a-5p, or miR-135a-5p and ROCK. RESULTS The levels of SNHG6, ROCK1 and ROCK2 were notably increased and miR-135a-5p was decreased in atherosclerosis patients and oxidized low-density lipoprotein (ox-LDL)-treated HUVECs. Knockdown of SNHG6 alleviated ox-LDL-induced injury of HUVECs, while this effect was partly reversed by miR-135a-5p inhibitor. Moreover, overexpression of ROCKs aggravated miR-135a-5p-alleviated atherosclerosis cell injury. SNHG6 contributed to ROCK expression through sequestering miR-135a-5p as a molecular sponge. CONCLUSION SNHG6 functions as a promoter in atherosclerosis events by targeting miR-135a-5p/ROCK axis in ox-LDL-stimulated HUVECs. This finding will help to develop a novel therapeutic strategy for atherosclerosis.
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Affiliation(s)
- Haiyan Shan
- Department of General Practice, The First Affiliated Hospital of China Medical University, No. 155 Nanjing North Street, Heping District, Shenyang, 110001, China
| | - Dawei Guo
- Department of the Fourth General Surgery, The Fourth Affiliated Hospital of China Medical University, No. 4 Chongshan East Road, Huanggu District, 110032, Shenyang, China
| | - Siyang Zhang
- Department of the Science and Experiment Center, The China Medical University, No. 77 Puhe Road, Shenbei New Area, 110122, Shenyang, China
| | - Huimeng Qi
- Department of General Practice, The First Affiliated Hospital of China Medical University, No. 155 Nanjing North Street, Heping District, Shenyang, 110001, China
| | - Shen Liu
- Department of General Practice, The First Affiliated Hospital of China Medical University, No. 155 Nanjing North Street, Heping District, Shenyang, 110001, China
| | - Yanmei Du
- Department of General Practice, The First Affiliated Hospital of China Medical University, No. 155 Nanjing North Street, Heping District, Shenyang, 110001, China
| | - Yini He
- Department of General Practice, The First Affiliated Hospital of China Medical University, No. 155 Nanjing North Street, Heping District, Shenyang, 110001, China
| | - Bofu Wang
- Department of General Practice, The First Affiliated Hospital of China Medical University, No. 155 Nanjing North Street, Heping District, Shenyang, 110001, China
| | - Ming Xu
- Department of General Practice, The First Affiliated Hospital of China Medical University, No. 155 Nanjing North Street, Heping District, Shenyang, 110001, China
| | - Xiaosong Yu
- Department of General Practice, The First Affiliated Hospital of China Medical University, No. 155 Nanjing North Street, Heping District, Shenyang, 110001, China.
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24
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Liang Y, Zhu H, Chen J, Lin W, Li B, Guo Y. Construction of relapse-related lncRNA-mediated ceRNA networks in Hodgkin lymphoma. Arch Med Sci 2020; 16:1411-1418. [PMID: 33224341 PMCID: PMC7667426 DOI: 10.5114/aoms.2020.98839] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2018] [Accepted: 02/02/2019] [Indexed: 12/22/2022] Open
Abstract
INTRODUCTION Hodgkin lymphoma (HL) is a type of lymphoma common throughout the western countries. However, the detailed mechanisms and special biomarkers of HL remain to be further investigated. Emerging studies have shown that long non-coding RNAs play a key role in human cancers. MATERIAL AND METHODS In the present work, we constructed relapse-related lncRNA-mediated ceRNA networks in HL. Additionally, we constructed co-expression networks for these relapse-related lncRNAs. We also constructed a relapse-related lncRNA-miRNA-mRNA network to study the potential mechanism of these lncRNAs. Furthermore, gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis were performed to explore functions of DEGs in Hodgkin lymphoma. RESULTS A total of 18 lncRNAs were found to be dysregulated between early relapse and late relapse HL. Six lncRNAs (PCBP1-AS1, HCG18, GAS5, PSMD6-AS2, PRKCQ-AS1, SNHG6), 116 mRNAs and 121 miRNAs were included in the ceRNA network. Bioinformatics analyses revealed that these lncRNAs were significantly involved in regulating immune system processes, responses to chemical stimuli and responses to stress. Among them, HCG18 and PCBP1-AS1 were identified as key lncRNAs in HL relapse. CONCLUSIONS Our results for the first time constructed the key relapse-related lncRNA-mediated ceRNA networks in Hodgkin lymphoma progression. We trust that this work will provide a new therapeutic and prognostic target for HL.
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Affiliation(s)
- Yuexiong Liang
- The First People’s Hospital of Zhaoqing City, Zhaoqing, Guangdong Province, China
| | - Haifeng Zhu
- The First People’s Hospital of Zhaoqing City, Zhaoqing, Guangdong Province, China
| | - Jing Chen
- The First People’s Hospital of Zhaoqing City, Zhaoqing, Guangdong Province, China
| | - Wei Lin
- The First People’s Hospital of Zhaoqing City, Zhaoqing, Guangdong Province, China
| | - Bing Li
- The First People’s Hospital of Zhaoqing City, Zhaoqing, Guangdong Province, China
| | - Yusheng Guo
- North Huashan Hospital, Fudan University, Shanghai, China
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25
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Chen L, Li Q, Lu X, Dong X, Li J. Overexpression of miR-340-5p Inhibits Skin Fibroblast Proliferation by Targeting Kruppel-like Factor 2. Curr Pharm Biotechnol 2019; 20:1147-1154. [PMID: 31345144 DOI: 10.2174/1389201020666190725112304] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Revised: 06/25/2019] [Accepted: 06/30/2019] [Indexed: 12/28/2022]
Abstract
<P>Objective: MicroRNA (miR)-340-5p has been identified to play a key role in several cancers.
However, the function of miR-340-5p in skin fibroblasts remains largely unknown.
</P><P>
Methods: Gain of function experiments were performed by infecting normal skin fibroblast cells with
a lentivirus carrying 22-bp miR-340-5p. Cell proliferation was detected by Cell Counting Kit-8 (CCK-8)
assay. To uncover the mechanisms, mRNA-seq was used. Differentially expressed mRNAs were further
determined by Gene Ontology and KEGG pathway analyses. The protein levels were analysed by
Western blotting. A dual-luciferase reporter assay was used to detect the direct binding of miR-340-5p
with the 3'UTR of Kruppel-like factor 2 (KLF2).
</P><P>
Results: MiR-340-5p lentivirus infection suppressed normal skin fibroblast proliferation. The mRNAseq
data revealed that 41 mRNAs were differentially expressed, including 22 upregulated and 19
downregulated transcripts in the miR-340-5p overexpression group compared with those in the control
group. Gene Ontology and KEGG pathway analyses revealed that miR-340-5p overexpression correlated
with the macromolecule biosynthetic process, cellular macromolecule biosynthetic process,
membrane, and MAPK signalling pathway. Bioinformatics analysis and luciferase reporter assays
showed that miR-340-5p binds to the 3'UTR of KLF2. Forced expression of miR-340-5p decreased the
expression of KLF2 in normal skin fibroblasts. Overexpression of KLF2 restored skin fibroblast proliferation
in the miR-340-5p overexpression group.
</P><P>
Conclusion: This study demonstrates that miR-340-5p may suppress skin fibroblast proliferation, possibly
through targeting KLF2. These findings could help us understand the function of miR-340-5p in
skin fibroblasts. miR-340-5p could be a therapeutic target for preventing scarring.</P>
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Affiliation(s)
- Ling Chen
- Department of Plastic & Cosmetic Surgery, Women's Hospital of Nanjing Medical University (Nanjing Maternity and Child Health Care Hospital), 123rd Tianfei Street, Mochou Road, Nanjing 210004, China
| | - Qian Li
- Department of Plastic & Cosmetic Surgery, Women's Hospital of Nanjing Medical University (Nanjing Maternity and Child Health Care Hospital), 123rd Tianfei Street, Mochou Road, Nanjing 210004, China
| | - Xun Lu
- Milken School of Public Health, George Washington University, Washington DC, 20052, United States
| | - Xiaohua Dong
- Department of Pediatric, Jingjiang People's Hospital Affiliated to Yangzhou University, Jingjiang 214500, Jiangsu, China
| | - Jingyun Li
- Nanjing Maternal and Child Health Medical Institute, Women's Hospital of Nanjing Medical University (Nanjing Maternity and Child Health Care Hospital), Nanjing, China
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26
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Li K, Ma YB, Tian YH, Xu XL, Gao Y, He YQ, Pan WT, Zhang JW, He CJ, Wei L. Silencing lncRNA SNHG6 suppresses proliferation and invasion of breast cancer cells through miR-26a/VASP axis. Pathol Res Pract 2019; 215:152575. [DOI: 10.1016/j.prp.2019.152575] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2019] [Revised: 07/16/2019] [Accepted: 07/31/2019] [Indexed: 01/17/2023]
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27
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Wang Y, Sun B, Zhang Q, Dong H, Zhang J. p300 Acetylates JHDM1A to inhibit osteosarcoma carcinogenesis. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2019; 47:2891-2899. [PMID: 31307234 DOI: 10.1080/21691401.2019.1638790] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Yongkun Wang
- Department of Orthopaedics, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Baozhen Sun
- Department of Hepatopancreatobiliary Surgery, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Qiao Zhang
- Department of Orthopaedics, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Hang Dong
- Department of Orthopaedics, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Jingzhe Zhang
- Department of Orthopaedics, China-Japan Union Hospital of Jilin University, Changchun, China
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28
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Chen J, Wu Z, Zhang Y. LncRNA SNHG3 promotes cell growth by sponging miR-196a-5p and indicates the poor survival in osteosarcoma. Int J Immunopathol Pharmacol 2019; 33:2058738418820743. [PMID: 30791797 PMCID: PMC6329016 DOI: 10.1177/2058738418820743] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Abnormal expression of long noncoding RNAs (lncRNAs) is closely associated with the pathogenesis of multiple malignancies, and lncRNA small nucleolar RNA host genes (SNHGs) play critical roles in tumor progression. However, the mechanism by which SNHG3 contributes to osteosarcoma (OS) remains elusive. The association between SNHG3 expression and the clinicopathological characteristics in OS patients was analyzed using the TCGA (The Cancer Genome Atlas) dataset. Cell viability and colony number were estimated by MTT and colony formation assays. MiR-196a-5p-specific binding with SNHG3 or HOXC8 was confirmed by the luciferase report assay. As a result, the expression of SNHG3 was dramatically increased in OS tissue as compared with the adjacent normal tissues. High expression of SNHG3 was associated with tumor size and acted as an independent prognostic factor of poor survival in OS patients. Knockdown of SNHG3 inhibited cell viability and colony formation, but its overexpression reversed these effects. SNHG3 was further identified to act as a sponge of miR-196a-5p, which counteracted the tumor-promoting effects caused by SNHG3 in OS cells. The expression of miR-196a-5p had a negative correlation with SNHG3 and the poor survival in OS patients. In conclusion, lncRNA SNHG3 promoted cell growth by sponging miR-196a-5p and indicated a poor prognosis in OS patients.
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Affiliation(s)
- Jun Chen
- 1 Department of Orthopedic Surgery, Jing'an District Zhabei Central Hospital, Shanghai, China
| | - Zhouyi Wu
- 1 Department of Orthopedic Surgery, Jing'an District Zhabei Central Hospital, Shanghai, China
| | - Yong Zhang
- 2 Department of Orthopedic Surgery, Shibei Hospital of Jingan District, Shanghai, China
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29
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Wu Y, Deng Y, Guo Q, Zhu J, Cao L, Guo X, Xu F, Weng W, Ju X, Wu X. Long non-coding RNA SNHG6 promotes cell proliferation and migration through sponging miR-4465 in ovarian clear cell carcinoma. J Cell Mol Med 2019; 23:5025-5036. [PMID: 31119871 PMCID: PMC6653241 DOI: 10.1111/jcmm.14359] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2018] [Revised: 03/15/2019] [Accepted: 04/14/2019] [Indexed: 12/13/2022] Open
Abstract
Dysregulation of small nucleolar RNA host gene 6 (SNHG6) exerts critical oncogenic effects and facilitates tumourigenesis in human cancers. However, little information about the expression pattern of SNHG6 in ovarian clear cell carcinoma (OCCC) is available, and the contributions of this long non‐coding RNA to the tumourigenesis and progression of OCCC are unclear. In the present study, we showed via quantitative real‐time PCR that SNHG6 expression was abnormally up‐regulated in OCCC tissues relative to that in unpaired normal ovarian tissues. High SNHG6 expression was correlated with vascular invasion, distant metastasis and poor survival. Further functional experiments demonstrated that knockdown of SNHG6 in OCCC cells inhibited cell proliferation, migration and invasion in vitro as well as tumour growth in vivo. Moreover, SNHG6 functioned as a competing endogenous RNA (ceRNA), effectively acting as a sponge for miR‐4465 and thereby modulating the expression of enhancer of zeste homolog 2 (EZH2). Taken together, our data suggest that SNHG6 is a novel molecule involved in OCCC progression and that targeting the ceRNA network involving SNHG6 may be a treatment strategy in OCCC.
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Affiliation(s)
- Yong Wu
- Department of Gynecologic Oncology, Fudan University Shanghai Cancer Center, Shanghai, People's Republic of China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, People's Republic of China.,Cancer Institute, Fudan University Shanghai Cancer Center, Shanghai, People's Republic of China
| | - Yu Deng
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, People's Republic of China.,Cancer Institute, Fudan University Shanghai Cancer Center, Shanghai, People's Republic of China.,Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai, People's Republic of China
| | - Qinhao Guo
- Department of Gynecologic Oncology, Fudan University Shanghai Cancer Center, Shanghai, People's Republic of China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, People's Republic of China.,Cancer Institute, Fudan University Shanghai Cancer Center, Shanghai, People's Republic of China
| | - Jun Zhu
- Department of Gynecologic Oncology, Fudan University Shanghai Cancer Center, Shanghai, People's Republic of China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, People's Republic of China.,Cancer Institute, Fudan University Shanghai Cancer Center, Shanghai, People's Republic of China
| | - Lijie Cao
- Department of Gynecologic Oncology, Fudan University Shanghai Cancer Center, Shanghai, People's Republic of China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, People's Republic of China.,Cancer Institute, Fudan University Shanghai Cancer Center, Shanghai, People's Republic of China
| | - Xueqi Guo
- Department of Gynecologic Oncology, Fudan University Shanghai Cancer Center, Shanghai, People's Republic of China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, People's Republic of China.,Cancer Institute, Fudan University Shanghai Cancer Center, Shanghai, People's Republic of China
| | - Fei Xu
- Department of Gynecologic Oncology, Fudan University Shanghai Cancer Center, Shanghai, People's Republic of China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, People's Republic of China.,Cancer Institute, Fudan University Shanghai Cancer Center, Shanghai, People's Republic of China
| | - Weiwei Weng
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, People's Republic of China.,Cancer Institute, Fudan University Shanghai Cancer Center, Shanghai, People's Republic of China.,Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai, People's Republic of China
| | - Xingzhu Ju
- Department of Gynecologic Oncology, Fudan University Shanghai Cancer Center, Shanghai, People's Republic of China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, People's Republic of China.,Cancer Institute, Fudan University Shanghai Cancer Center, Shanghai, People's Republic of China
| | - Xiaohua Wu
- Department of Gynecologic Oncology, Fudan University Shanghai Cancer Center, Shanghai, People's Republic of China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, People's Republic of China.,Cancer Institute, Fudan University Shanghai Cancer Center, Shanghai, People's Republic of China
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30
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Li Y, Wang Z, Li J, Sang X. Diallyl disulfide suppresses FOXM1-mediated proliferation and invasion in osteosarcoma by upregulating miR-134. J Cell Biochem 2019; 120:7286-7296. [PMID: 30387181 DOI: 10.1002/jcb.28003] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Accepted: 10/08/2018] [Indexed: 01/24/2023]
Abstract
Diallyl disulfide (DADS), a volatile component of garlic oil, exerts anticancer activity in various types of cancers, while its anticancer effects against osteosarcoma (OS) have not been previously explored. This study aimed to investigate the anticancer potential of DADS in OS and to explore the underlying mechanisms. DADS reduced the cell viability and increased the expression of miR-134 in OS cell lines, and this effect was in a time- and concentration-dependent manner. Furthermore, in vitro functional assays revealed that DADS significantly inhibited the proliferation and invasion of human OS U2OS and MG-63 cells, which was partially reversed by miR-134 inhibitor transfection. DADS exhibited in vivo antitumor activity and upregulated miR-134 expression in xenograft tumors. Downregulation of miR-134 attenuated DADS-induced antitumor capacity. Further bioinformatics prediction analysis revealed that the 3'-untranslated region (3'-UTR) of Forkhead Box M1 (FOXM1) harbored miR-134-binding sites, and overexpression of miR-134 repressed the luciferase activity of the reporting vector containing FOXM1 3'-UTR. Both miR-134 overexpression and DADS inhibited FOXM1 expression in U2OS cells, while enforced expression of FOXM1 suppressed DADS-induced antiproliferation and anti-invasion capacity in U2OS cells. Furthermore, DADS treatment led to significant downregulation of cyclin D1, c-myc, and lymphoid enhancer-binding factor 1 expression, but the remarkably upregulated p21 level in U2OS cells. Collectively, DADS could be a promising anticancer agent for OS, and the underlying mechanisms might be associated with the antiproliferation and anti-invasion properties through upregulating miR-134 expression.
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Affiliation(s)
- Yonggang Li
- Department of Emergency Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Zhiyong Wang
- Department of Emergency Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Jianmin Li
- Department of Orthopaedic Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Xiguang Sang
- Department of Emergency Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, China
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31
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Zhao W, Li L. SP1-induced upregulation of long non-coding RNA HCP5 promotes the development of osteosarcoma. Pathol Res Pract 2019; 215:439-445. [PMID: 30554864 DOI: 10.1016/j.prp.2018.12.006] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Revised: 11/19/2018] [Accepted: 12/09/2018] [Indexed: 12/11/2022]
Abstract
Long non-coding RNAs (LncRNAs) are acknowledged as crucial regulators in tumorigenesis and tumor progression. In this study, we explored the mechanism and function of lncRNA HCP5 in osteosarcoma (OS). At first, five lncRNAs were chosen from GeneCard and subjected to qRT-PCR examination. The results indicated that HCP5 was significantly overexpressed in four OS cell lines. Northern blot assay further proved the higher expression of HCP5 in OS cell lines. To identify the biological role of HCP5 in OS, we silenced the expression of HCP5 in U2OS and MG-63 cells which possessed the highest level of HCP5. CCK-8 and colony formation assay revealed the inhibitory effect of HCP5 knockdown on cell proliferation. Cell apoptosis was found to be increased in cells transfected with sh-HCP5#1. Moreover, cell invasion and epithelial-mesenchymal transition (EMT) were reversed by the silencing of HCP5. The results of functional assays showed that HCP5 acted as an oncogene in osteosarcoma. Mechanically, HCP5 was found to be activated by the transcription factor SP1. Finally, rescue assays were conducted to demonstrate the function of SP1/HCP5 axis in osteosarcoma. In conclusion, we confirmed that SP1-induced upregulation of long non-coding RNA HCP5 promotes the development of osteosarcoma.
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Affiliation(s)
- Weidong Zhao
- Food Nutrition Center, West China Hospital, Sichuan University, Chengdu, 610041, No. 37, Guoxue Xiang, Wuhou District, Sichuan, China
| | - Li Li
- Department of Lymphoma, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chendu, 610041, No. 55 Section 4 South Renmin Road, Sichuan, China.
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32
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Xu M, Chen X, Lin K, Zeng K, Liu X, Xu X, Pan B, Xu T, Sun L, He B, Pan Y, Sun H, Wang S. lncRNA SNHG6 regulates EZH2 expression by sponging miR-26a/b and miR-214 in colorectal cancer. J Hematol Oncol 2019; 12:3. [PMID: 30626446 PMCID: PMC6327409 DOI: 10.1186/s13045-018-0690-5] [Citation(s) in RCA: 154] [Impact Index Per Article: 30.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Accepted: 12/25/2018] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Abnormal expression of long non-coding RNAs (lncRNAs) has been found in almost all human tumors, providing numerous potential diagnostic biomarkers, prognostic biomarkers, and therapeutic targets. METHODS We analyzed RNA sequencing data to explore abnormally expressed lncRNAs in colorectal cancer (CRC). The functions of small nucleolar RNA host gene 6 (SNHG6) were investigated through in vitro and in vivo assays (CCK-8 assay, colony formation assay, flow cytometry assay, EdU assay, wound healing assay, transwell assay, and xenograft model). The mechanism of action of SNHG6 was explored through bioinformatics, RNA fluorescence in situ hybridization, luciferase reporter assay, RNA pull-down assay, chromatin immunoprecipitation assay, and RNA immunoprecipitation assay. RESULTS We identified aberrantly expressed lncRNAs in CRC. We found that elevated SNHG6 expression was associated with poor prognosis and CRC progression. We also demonstrated that the high SNHG6 expression was partly due to DNA copy number gains and SP1 induction. Functional studies showed that SNHG6 promoted CRC cell growth, migration, and invasion both in vitro and in vivo. Mechanistically, we found that SNHG6 expressed predominantly in the cytoplasm. SNHG6 could interact with miR-26a, miR-26b, and miR-214 and regulate their common target EZH2. CONCLUSIONS Our study elucidated that SNHG6 acted as an oncogene in CRC, which might serve as a novel target for CRC diagnosis and therapy.
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Affiliation(s)
- Mu Xu
- General Clinical Research Center, Nanjing First Hospital, Nanjing Medical University, No. 68, Changle Road, Nanjing, 210006 China
| | - Xiaoxiang Chen
- General Clinical Research Center, Nanjing First Hospital, Nanjing Medical University, No. 68, Changle Road, Nanjing, 210006 China
- School of Medicine, Southeast University, Nanjing, 210009 China
| | - Kang Lin
- Department of Laboratory Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006 China
| | - Kaixuan Zeng
- General Clinical Research Center, Nanjing First Hospital, Nanjing Medical University, No. 68, Changle Road, Nanjing, 210006 China
- School of Medicine, Southeast University, Nanjing, 210009 China
| | - Xiangxiang Liu
- General Clinical Research Center, Nanjing First Hospital, Nanjing Medical University, No. 68, Changle Road, Nanjing, 210006 China
| | - Xueni Xu
- General Clinical Research Center, Nanjing First Hospital, Nanjing Medical University, No. 68, Changle Road, Nanjing, 210006 China
- School of Medicine, Southeast University, Nanjing, 210009 China
| | - Bei Pan
- General Clinical Research Center, Nanjing First Hospital, Nanjing Medical University, No. 68, Changle Road, Nanjing, 210006 China
| | - Tao Xu
- General Clinical Research Center, Nanjing First Hospital, Nanjing Medical University, No. 68, Changle Road, Nanjing, 210006 China
| | - Li Sun
- Department of Laboratory Medicine, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, 210011 China
| | - Bangshun He
- General Clinical Research Center, Nanjing First Hospital, Nanjing Medical University, No. 68, Changle Road, Nanjing, 210006 China
| | - Yuqin Pan
- General Clinical Research Center, Nanjing First Hospital, Nanjing Medical University, No. 68, Changle Road, Nanjing, 210006 China
| | - Huiling Sun
- General Clinical Research Center, Nanjing First Hospital, Nanjing Medical University, No. 68, Changle Road, Nanjing, 210006 China
| | - Shukui Wang
- General Clinical Research Center, Nanjing First Hospital, Nanjing Medical University, No. 68, Changle Road, Nanjing, 210006 China
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Wang X, Lai Q, He J, Li Q, Ding J, Lan Z, Gu C, Yan Q, Fang Y, Zhao X, Liu S. LncRNA SNHG6 promotes proliferation, invasion and migration in colorectal cancer cells by activating TGF-β/Smad signaling pathway via targeting UPF1 and inducing EMT via regulation of ZEB1. Int J Med Sci 2019; 16:51-59. [PMID: 30662328 PMCID: PMC6332483 DOI: 10.7150/ijms.27359] [Citation(s) in RCA: 123] [Impact Index Per Article: 24.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2018] [Accepted: 10/18/2018] [Indexed: 12/29/2022] Open
Abstract
Background: Long noncoding RNAs (lncRNAs) are non-protein coding transcripts longer than 200 nucleotides in length. They drive many important cancer phenotypes through their interactions with other cellular macromolecules including DNA, RNA and protein. Recent studies have identified numerous lncRNAs active in colorectal cancer (CRC). The lncRNA small nucleolar RNA host gene 6 (SNHG6) has been reported to have an oncogenic role in multiple cancers. However, the biological role and mechanism of SNHG6 in the tumorigenesis of CRC has not been reported in-deep. Methods: The Cancer Genome Atlas (TCGA) database and GEO database were used to identify SNHG6 expression in different human cancers and explore the relationship between SNHG6 expression and patient prognosis using Kaplan-Meier method analysis. SNHG6 expression in 77 pairs of clinical CRC tissues and different CRC cell lines were analyzed by quantitative real-time PCR (qRT-PCR). A CCK-8 assay was used to assess cell proliferation, transwell assay to detect the cell metastasis, and tumor growth was investigated with a nude mice model in vivo. Whether UPF1 and ZEB1 are downstream targets of SNHG6 was verified by bioinformatics target gene prediction, qRT-PCR and western blot. Results: TCGA data showed that SNHG6 was significantly upregulated in colorectal cancer samples in comparison with healthy data samples (P < 0.01). CRC patients with high levels of SNHG6 had a significantly shorter overall survival than those with low levels of SNHG6 (P = 0.0162). qRT-PCR confirmed that the expression of SNHG6 was significantly upregulated in CRC tissues and cell lines. Upregulation of SNHG6 expression induced RKO and HCT116 cell proliferation as well as RKO cell metastasis, while downregulation of SNHG6 expression supressed the proliferation and metastasis of RKO cells and tumor growth in vivo. UPF1 was upregulated and ZEB1 was decreased when SNHG6 knockdown, regulating the TGF-β/Smad pathway and inducing EMT respectively. Conclusions: SNHG6 may play an oncogenic role in CRC cells by activating TGF-β/Smad signaling pathway via targeting of UPF1 and inducing EMT via regulating ZEB1. This could be a prognostic biomarker and therapeutic target for CRC.
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Affiliation(s)
- Xinke Wang
- Department of Gastroenterology, Nanfang Hospital, Southern Medical University, No. 1838, Guangzhou Avenue North, Guangzhou, People's Republic of China
| | - Qiuhua Lai
- Department of Gastroenterology, Nanfang Hospital, Southern Medical University, No. 1838, Guangzhou Avenue North, Guangzhou, People's Republic of China
| | - Juan He
- Department of Gastroenterology, Nanfang Hospital, Southern Medical University, No. 1838, Guangzhou Avenue North, Guangzhou, People's Republic of China
| | - Qingyuan Li
- Department of Gastroenterology, Nanfang Hospital, Southern Medical University, No. 1838, Guangzhou Avenue North, Guangzhou, People's Republic of China
| | - Jian Ding
- Department of Gastroenterology, Nanfang Hospital, Southern Medical University, No. 1838, Guangzhou Avenue North, Guangzhou, People's Republic of China
| | - Zhixian Lan
- Department of Gastroenterology, Nanfang Hospital, Southern Medical University, No. 1838, Guangzhou Avenue North, Guangzhou, People's Republic of China
| | - Chuncai Gu
- Department of Gastroenterology, Nanfang Hospital, Southern Medical University, No. 1838, Guangzhou Avenue North, Guangzhou, People's Republic of China
| | - Qun Yan
- Department of Gastroenterology, Nanfang Hospital, Southern Medical University, No. 1838, Guangzhou Avenue North, Guangzhou, People's Republic of China
| | - Yuxin Fang
- Department of Gastroenterology, Nanfang Hospital, Southern Medical University, No. 1838, Guangzhou Avenue North, Guangzhou, People's Republic of China
| | - Xinmei Zhao
- Department of Gastroenterology, Nanfang Hospital, Southern Medical University, No. 1838, Guangzhou Avenue North, Guangzhou, People's Republic of China
| | - Side Liu
- Department of Gastroenterology, Nanfang Hospital, Southern Medical University, No. 1838, Guangzhou Avenue North, Guangzhou, People's Republic of China
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Kong D, Li C, Yang Q, wei B, Wang L, Peng C. Long noncoding RNA LSINCT5 acts as an oncogene via increasing EZH2-induced inhibition of APC expression in osteosarcoma. Biochem Biophys Res Commun 2018; 507:193-197. [DOI: 10.1016/j.bbrc.2018.11.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2018] [Accepted: 11/02/2018] [Indexed: 12/12/2022]
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Long non-coding RNA BRE-AS1 represses non-small cell lung cancer cell growth and survival via up-regulating NR4A3. Arch Biochem Biophys 2018; 660:53-63. [PMID: 30227111 DOI: 10.1016/j.abb.2018.09.013] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2018] [Revised: 09/09/2018] [Accepted: 09/14/2018] [Indexed: 12/11/2022]
Abstract
Recently, several long non-coding RNAs (lncRNAs) have been revealed to play crucial roles in tumorigenesis and progression of many cancers. Nevertheless, more than 50,000 lncRNAs were identified in human cells and the roles of majority of these lncRNAs in non-small cell lung cancer (NSCLC) are unknown. In this study, using public NSCLC microarray data we identified a novel lncRNA BRE antisense RNA 1 (BRE-AS1). BRE-AS1 is significantly down-regulated in NSCLC tissues and cell lines. Gain-of-function and loss-of-function assays showed that BRE-AS1 reduces NSCLC cell viability, represses NSCLC cell proliferation, and induces NSCLC cell apoptosis in vitro, and represses NSCLC tumor growth in vivo. Mechanistic investigation revealed that BRE-AS1 physically binds STAT3, reduces the binding of STAT3 to the promoter of NR4A3, relieves the repression of NR4A3 caused by STAT3, and up-regulates NR4A3 expression. Consistently, NR4A3 is significantly down-regulated in NSCLC tissues and the expression of NR4A3 is positively correlated with the expression of BRE-AS1 in NSCLC tissues. In addition, depletion of NR4A3 attenuates the tumor suppressive roles of BRE-AS1 in NSCLC. Collectively, our data demonstrate that BRE-AS1 represses NSCLC cell growth and survival via up-regulating NR4A3 and suggest that enhancing BRE-AS1 may be potential therapeutic strategy for NSCLC.
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Li Y, Li D, Zhao M, Huang S, Zhang Q, Lin H, Wang W, Li K, Li Z, Huang W, Che Y, Huang C. Long noncoding RNA SNHG6 regulates p21 expression via activation of the JNK pathway and regulation of EZH2 in gastric cancer cells. Life Sci 2018; 208:295-304. [DOI: 10.1016/j.lfs.2018.07.032] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Revised: 07/05/2018] [Accepted: 07/17/2018] [Indexed: 12/11/2022]
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Wang C, Tao W, Ni S, Chen Q. Upregulation of lncRNA snoRNA host gene 6 regulates NUAK family SnF1-like kinase-1 expression by competitively binding microRNA-125b and interacting with Snail1/2 in bladder cancer. J Cell Biochem 2018; 120:357-367. [PMID: 30168179 DOI: 10.1002/jcb.27387] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2018] [Accepted: 07/09/2018] [Indexed: 12/15/2022]
Abstract
BACKGROUNDS/AIMS Numerous studies have reported that long noncoding RNAs (lncRNAs) play critical roles in the development and progression of bladder cancer (BC). LncRNA snoRNA host gene 6 (SNHG6) is ectopically expressed in tumor tissues of patients with BC and BC cell lines. However, little is known about the molecular mechanism of SNHG6-mediated bladder urothelial carcinoma cell migration and invasion. METHODS We detected the SNHG6 levels in human BC specimens and cell lines by quantitative real-time polymerase chain reaction and Western blot, and investigated its role in BC using in vitro assays. RESULTS We showed that overexpression of SNHG6 induced epithelial-mesenchymal transition (EMT) and promoted the migration and invasion capabilities of BC cells. Mechanistically, SNHG6 induced EMT of BC cells by upregulating the expression levels of Snail1/2 and regulated BC cell migration and invasion by tumor suppressive hsa-miR-125b and its target gene NUAK Family Kinase 1 (NUAK1). Furthermore, we found that SNHG6 was positively correlated with Snail1/2 expression, and negatively correlated with hsa-miR-125b expression in BC specimens. Further study showed that SNHG6 repressed hsa-miR-125b expression to upregulate Snail1/2. Conversely, hsa-miR-125b knockdown augmented SNHG6 expression in BC cells. CONCLUSION Overall, our study demonstrated that SNHG6 promotes BC cell migration and invasion partly via the hsa-miR-125b/Snail1/2/NUAK1 pathway. Therefore, SNHG6 may be a potential prognostic biomarker in BC, and targeting hsa-miR-125b/Snail1/2/NUAK1 axis may be a promising therapeutic approach for BC patients.
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Affiliation(s)
- Chunyang Wang
- Department of Urology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Weiyang Tao
- Department of Breast Surgery, The Third Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Shaobin Ni
- Department of Urology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Qiyin Chen
- Department of Urology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
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Li B, Li X. Overexpression of hsa_circ_0007534 predicts unfavorable prognosis for osteosarcoma and regulates cell growth and apoptosis by affecting AKT/GSK-3β signaling pathway. Biomed Pharmacother 2018; 107:860-866. [PMID: 30142548 DOI: 10.1016/j.biopha.2018.08.086] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2018] [Revised: 08/11/2018] [Accepted: 08/15/2018] [Indexed: 12/11/2022] Open
Abstract
Accumulating evidence demonstrated the pivotal roles of circular RNAs (circRNAs) in several types of cancers. However, the study relevant to the biological functions of circRNAs in osteosarcoma (OS) is still very limited. Recently, hsa_circ_0007534 has been proved to play key roles in colorectal carcinoma and glioma. In this study, qRT-PCR was used to determine hsa_circ_0007534 expression in OS tissues and cells. The clinical value of hsa_circ_0007534 was further explored. Additionally, cell growth, clone formation ability and cell apoptosis were assessed after hsa_circ_0007534 silenced. The xenograft study was further induced to investigate the roles of hsa_circ_0007534 in vivo. Moreover, AKT/GSK-3β pathway was measured to illustrate the mechanism of hsa_circ_0007534 exerts in OS progression. The data demonstrated that hsa_circ_0007534 is overexpressed in OS tissue samples and cells and this up-regulation is related with larger tumor size and poorer differentiation degree. Moreover, hsa_circ_0007534 is a dismal prognostic biomarker for OS patients. For the functional assays, knockdown of hsa_circ_0007534 suppresses OS cell growth in vitro and in vivo. In addition, hsa_circ_0007534 protects against cell apoptosis via Bcl-2/caspase-3 pathway. Furthermore, AKT/GSK-3β pathway could be activated by hsa_circ_0007534 to facilitate OS progression. In summary, hsa_circ_0007534 may be a rational predictive marker and therapeutic target for OS.
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Affiliation(s)
- Baoquan Li
- Department of Orthopedics Surgery, The Second Affiliated Hospital of Qiqihar Medical University, Qiqihar, 161000, China.
| | - Xiaoguang Li
- Department of Orthopedics Surgery, The Second Affiliated Hospital of Qiqihar Medical University, Qiqihar, 161000, China
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