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Cantile M, Belli V, Scognamiglio G, Martorana A, De Pietro G, Tracey M, Budillon A. The role of HOTAIR in the modulation of resistance to anticancer therapy. Front Mol Biosci 2024; 11:1414651. [PMID: 38887279 PMCID: PMC11181001 DOI: 10.3389/fmolb.2024.1414651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Accepted: 05/10/2024] [Indexed: 06/20/2024] Open
Abstract
Leading anti-tumour therapeutic strategies typically involve surgery and radiotherapy for locally advanced (non-metastatic) cancers, while hormone therapy, chemotherapy, and molecular targeted therapy are the current treatment options for metastatic cancer. Despite the initially high sensitivity rate to anticancer therapies, a large number of patients develop resistance, leading to a poor prognosis. The mechanisms related to drug resistance are highly complex, and long non-coding RNAs appear to play a crucial role in these processes. Among these, the lncRNA homeobox transcript antisense intergenic RNA (HOTAIR), widely implicated in cancer initiation and progression, likewise plays a significant role in anticancer drug resistance. It can modulate cell activities such as proliferation, apoptosis, hypoxia, autophagy, as well as epithelial-mesenchymal transition, thereby contributing to the development of resistant tumour cells. In this manuscript, we describe different mechanisms of antitumor drug resistance in which HOTAIR is involved and suggest its potential as a therapeutic predictive biomarker for the management of cancer patients.
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Affiliation(s)
- Monica Cantile
- Scientific Directorate, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy
| | - Valentina Belli
- Scientific Directorate, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy
| | - Giosuè Scognamiglio
- Scientific Directorate, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy
| | - Anna Martorana
- Scientific Directorate, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy
| | - Giovanna De Pietro
- Scientific Directorate, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy
| | - Maura Tracey
- Rehabilitation Medicine Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy
| | - Alfredo Budillon
- Scientific Directorate, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy
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Function of the Long Noncoding RNAs in Hepatocellular Carcinoma: Classification, Molecular Mechanisms, and Significant Therapeutic Potentials. Bioengineering (Basel) 2022; 9:bioengineering9080406. [PMID: 36004931 PMCID: PMC9405066 DOI: 10.3390/bioengineering9080406] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Revised: 08/15/2022] [Accepted: 08/16/2022] [Indexed: 12/24/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is the most common and serious type of primary liver cancer. HCC patients have a high death rate and poor prognosis due to the lack of clear signs and inadequate treatment interventions. However, the molecular pathways that underpin HCC pathogenesis remain unclear. Long non-coding RNAs (lncRNAs), a new type of RNAs, have been found to play important roles in HCC. LncRNAs have the ability to influence gene expression and protein activity. Dysregulation of lncRNAs has been linked to a growing number of liver disorders, including HCC. As a result, improved understanding of lncRNAs could lead to new insights into HCC etiology, as well as new approaches for the early detection and treatment of HCC. The latest results with respect to the role of lncRNAs in controlling multiple pathways of HCC were summarized in this study. The processes by which lncRNAs influence HCC advancement by interacting with chromatin, RNAs, and proteins at the epigenetic, transcriptional, and post-transcriptional levels were examined. This critical review also highlights recent breakthroughs in lncRNA signaling pathways in HCC progression, shedding light on the potential applications of lncRNAs for HCC diagnosis and therapy.
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Bioinformatics Analysis for Constructing a Six-Immune-Related Long Noncoding RNA Signature as a Prognostic Model of Hepatocellular Carcinoma. BIOMED RESEARCH INTERNATIONAL 2022; 2022:2093437. [PMID: 35845962 PMCID: PMC9283041 DOI: 10.1155/2022/2093437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 06/21/2022] [Indexed: 12/24/2022]
Abstract
The present study was aimed at identifying the potential prognostic biomarkers of the immune-related long noncoding RNA (IRL) signature for patients with hepatocellular carcinoma (HCC). RNA-sequencing data and clinical information about HCC were obtained from The Cancer Genome Atlas. The IRLs were determined with regard to the coexpression of immune-related genes and differentially expressed lncRNAs. The survival IRLs were obtained using the univariate Cox analysis. Subsequently, the prognosis model was constructed via the multivariate Cox analysis. Subsequently, functional annotation was conducted using Gene Set Enrichment Analysis (GSEA) and principal component analysis (PCA). In total, 341 IRLs were identified, and 6 IRLs were found to have a highly significant association with the prognosis of patients with HCC. The immune prognosis model was constructed with these 6 IRLs (AC099850.4, negative regulator of antiviral response, AL031985.3, PRRT3-antisense RNA1, AL365203.2, and long intergenic nonprotein coding RNA 1224) using the multivariate Cox regression analysis. In addition, immune-related prognosis signatures were confirmed as an independent prognostic factor. The association between prognostic signatures and immune infiltration indicated that the 6 lncRNAs could reflect the immune status of the tumor. Collectively, the present study demonstrates that six-lncRNA signatures may be potential biomarkers to predict the prognosis of patients with HCC.
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Identification of lncRNAs and Their Regulatory Relationships with mRNAs in Response to Cryptococcus neoformans Infection of THP-1 Cells. BIOMED RESEARCH INTERNATIONAL 2022; 2022:5532118. [PMID: 35378790 PMCID: PMC8976626 DOI: 10.1155/2022/5532118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Revised: 12/27/2021] [Accepted: 03/03/2022] [Indexed: 11/17/2022]
Abstract
Aims. Cryptococcosis is an invasive fungal disease that is associated with an increasing prevalence along with a very high fatality and is primarily caused by Cryptococcus. However, its mechanism to cause pathogenicity is not yet completely understood. In this study, we aim to screen the lncRNA markers in human monocytic (THP-1) cells infected by Cryptococcus neoformans (C. neoformans) through high-throughput sequencing technology and to explore its effects on biological functions. Methods. We initially conducted an lncRNA microarray analysis of the THP-1 cells infected by C. neoformans and normal THP-1 cells. Based upon these data, RT-qPCR was used to verify the expressions of the selected lncRNAs and mRNAs. We then performed functional and pathway enrichment analyses. Lastly, target prediction was performed by using the lncRNA target tool which was based on the differentially expressed lncRNAs. Results. We determined 81 upregulated and 96 downregulated lncRNAs using microarray. In addition, the profiling data showed 42 upregulated and 57 downregulated genes and discovered that neuroactive ligand-receptor interaction, tyrosine metabolism, and phenylalanine metabolism are extremely impaired in the regulation of C. neoformans infection. GO enrichment analysis of the 99 differentially expressed mRNAs exhibited that these modules showed different signaling pathways and biological mechanisms like protein binding and metal ion binding. Moreover, lncRNAs and mRNAs were analyzed for their coexpression relations. A qRT-PCR analysis confirmed that the expression of the top 10 differently expressed mRNA and lincRNA. The expressions of the lncRNAs after C. neoformans infection in THP-1 cells were detected by RNA-sequence, suggesting that microarray analysis could reveal lncRNAs having functional significance that might be linked with the progression of patients. Conclusion. The current study analyzed the differential lncRNAs and mRNAs in C. neoformans infection and predicted the corresponding pathways and their correlations that can offer new potential insights into the mechanistic basis of this condition.
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Zhang H, Chen G, Lyu X, Rong C, Wang Y, Xu Y, Lyu C. A Novel Predictive Model Associated with Osteosarcoma Metastasis. Cancer Manag Res 2021; 13:8411-8423. [PMID: 34785949 PMCID: PMC8590484 DOI: 10.2147/cmar.s332387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 10/11/2021] [Indexed: 11/23/2022] Open
Abstract
Purpose Long non-coding RNAs (lncRNAs) have diverse roles in modulating gene expression on both transcriptional and translational levels, but their involvement in osteosarcoma (OS) metastasis remains unknown. Patients and Methods Transcriptional and clinical data were downloaded from TARGET datasets. A total of seven lncRNAs screened by univariate cox regression, lasso regression, and multivariate cox regression analysis were used to establish the OS metastasis model. The area under the receiver operating characteristic curve (AUC) was used to evaluate the model. Results The established model showed exceptional predictive performance (1 year: AUC = 0.92, 95% Cl = 0.83-0.99; 3 years: AUC = 0.87, 95% Cl = 0.79-0.96; 5 years: AUC = 0.86, 95% Cl = 0.76-0.96). Patients in the high group had a poor survival outcome than those in the low group (p < 0.0001). GSEA analysis revealed that "NOTCH_SIGNALING" and "WNT_BETA_CATENIN_SIGNALING" were significantly enriched and that resting dendritic cells were associated with AL512422.1, AL357507.1, and AC006033.2 (p < 0.05). Conclusion Based on seven prognosis-related lncRNAs, we constructed a novel model with high reliability and accuracy for predicting metastasis in OS patients.
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Affiliation(s)
- Han Zhang
- Department of Orthopaedics, The Affiliated Hospital of Qingdao University, Qingdao City, Shandong Province, People's Republic of China.,Department of Orthopaedics, Shanxian Central Hospital, Heze City, Shandong Province, People's Republic of China
| | - Guanhong Chen
- Department of Orthopaedics, Shanxian Central Hospital, Heze City, Shandong Province, People's Republic of China
| | - Xiajie Lyu
- Weifang Medical University, Weifang, Shandong, People's Republic of China
| | - Chun Rong
- Department of Operation Room, The Affiliated Hospital of Qingdao University, Qingdao City, Shandong Province, People's Republic of China
| | - Yingzhen Wang
- Department of Orthopaedics, The Affiliated Hospital of Qingdao University, Qingdao City, Shandong Province, People's Republic of China
| | - Ying Xu
- Department of Orthopaedics, Shanxian Central Hospital, Heze City, Shandong Province, People's Republic of China
| | - Chengyu Lyu
- Department of Orthopaedics, The Affiliated Hospital of Qingdao University, Qingdao City, Shandong Province, People's Republic of China
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Zhang N, Shen H, Huang S, Wang F, Liu H, Xie F, Jiang L, Chen X. LncRNA FGD5-AS1 functions as an oncogene to upregulate GTPBP4 expression by sponging miR-873-5p in hepatocellular carcinoma. Eur J Histochem 2021; 65. [PMID: 34783233 PMCID: PMC8611415 DOI: 10.4081/ejh.2021.3300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Accepted: 10/11/2021] [Indexed: 11/28/2022] Open
Abstract
The long non-coding FGD5-AS1 (LncFGD5-AS1) has been reported to be a novel carcinogenic gene and participant in regulating tumor progression by sponging microRNAs (miRNAs). However, the pattern of expression and the biological role of FGD5-AS1 in hepatocellular carcinoma (HCC) remains largely unknown. The expression level of FGD5-AS1 in tumor tissues and cell lines was measured by RT-qPCR. CCK-8, EdU, flow cytometry, wound healing and transwell chamber assays were performed to investigate the role of FGD5-AS1 in cell proliferation, apoptosis, migration, and invasion in HCC. Dual luciferase reporter, and RNA pull-down assays were performed to identify the regulatory interactions among FGD5-AS1, miR-873-5p and GTP-binding protein 4 (GTPBP4). We found that the expression of FGD5-AS1 was upregulated in HCC tissues and cell lines. Moreover, the knockdown of FGD5-AS1 suppressed cell proliferation, migration and invasion, and induced apoptosis in HCC cells. Further studies demonstrated that FGD5-AS1 could function as a competitive RNA by sponging miR-873-5p in HCC cells. Moreover, GTPBP4 was identified as direct downstream target of miR-873-5p in HCC cells and FGD5-AS1mediated the effects of GTPBP4 by competitively binding with miR-873-5p. Taken together, this study demonstrated the regulatory role of FGD5-AS1 in the progression of HCC and identified the miR-873-5p/GTPBP4 axis as the direct downstream pathway. It represents a promising novel therapeutic strategy for HCC patients.
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Affiliation(s)
- Nuobei Zhang
- Department of Gastroenterology, The Second Affiliated Hospital of Nanchang University, Nanchang.
| | - Hao Shen
- Department of Gastroenterology, The Second Affiliated Hospital of Nanchang University, Nanchang.
| | - Shenan Huang
- Department of Gastroenterology, The Second Affiliated Hospital of Nanchang University, Nanchang.
| | - Fenfen Wang
- Department of Gastroenterology, The Second Affiliated Hospital of Nanchang University, Nanchang.
| | - Huifang Liu
- Department of Gastroenterology, The Second Affiliated Hospital of Nanchang University, Nanchang.
| | - Fen Xie
- Department of Gastroenterology, The Second Affiliated Hospital of Nanchang University, Nanchang.
| | - Lei Jiang
- Department of Gastroenterology, The Second Affiliated Hospital of Nanchang University, Nanchang.
| | - Xin Chen
- Department of Nuclear Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang.
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7
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Yao Y, Ji B, Lv Y, Li L, Xiang J, Liao B, Gao W. Predicting LncRNA-Disease Association by a Random Walk With Restart on Multiplex and Heterogeneous Networks. Front Genet 2021; 12:712170. [PMID: 34490041 PMCID: PMC8417042 DOI: 10.3389/fgene.2021.712170] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Accepted: 07/23/2021] [Indexed: 02/05/2023] Open
Abstract
Studies have found that long non-coding RNAs (lncRNAs) play important roles in many human biological processes, and it is critical to explore potential lncRNA–disease associations, especially cancer-associated lncRNAs. However, traditional biological experiments are costly and time-consuming, so it is of great significance to develop effective computational models. We developed a random walk algorithm with restart on multiplex and heterogeneous networks of lncRNAs and diseases to predict lncRNA–disease associations (MHRWRLDA). First, multiple disease similarity networks are constructed by using different approaches to calculate similarity scores between diseases, and multiple lncRNA similarity networks are also constructed by using different approaches to calculate similarity scores between lncRNAs. Then, a multiplex and heterogeneous network was constructed by integrating multiple disease similarity networks and multiple lncRNA similarity networks with the lncRNA–disease associations, and a random walk with restart on the multiplex and heterogeneous network was performed to predict lncRNA–disease associations. The results of Leave-One-Out cross-validation (LOOCV) showed that the value of Area under the curve (AUC) was 0.68736, which was improved compared with the classical algorithm in recent years. Finally, we confirmed a few novel predicted lncRNAs associated with specific diseases like colon cancer by literature mining. In summary, MHRWRLDA contributes to predict lncRNA–disease associations.
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Affiliation(s)
- Yuhua Yao
- School of Mathematics and Statistics, Hainan Normal University, Haikou, China.,Key Laboratory of Data Science and Intelligence Education, Ministry of Education, Hainan Normal University, Haikou, China.,Key Laboratory of Computational Science and Application of Hainan Province, Hainan Normal University, Haikou, China
| | - Binbin Ji
- Geneis Beijing Co., Ltd., Beijing, China
| | - Yaping Lv
- School of Mathematics and Statistics, Hainan Normal University, Haikou, China
| | - Ling Li
- Basic Courses Department, Zhejiang Shuren University, Hangzhou, China
| | - Ju Xiang
- School of Computer Science and Engineering, Central South University, Changsha, China.,Department of Basic Medical Sciences, Changsha Medical University, Changsha, China.,Department of Computer Science, Changsha Medical University, Changsha, China
| | - Bo Liao
- School of Mathematics and Statistics, Hainan Normal University, Haikou, China
| | - Wei Gao
- Departments of Internal Medicine-Oncology, Fujian Cancer Hospital & Fujian Medical University Cancer Hospital, Fuzhou, China
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8
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Zhou X, Bao W, Zhang D, Yang Y, Du X, Qiu G. NCK1-AS1 promotes the progression of lung squamous cell carcinoma through transcriptionally upregulating NCK1 via interacting with MYC. Cancer Biol Ther 2021; 22:196-203. [PMID: 33629937 DOI: 10.1080/15384047.2020.1842717] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Lung squamous cell carcinoma (LUSC) is a prevalent subtype of nonsmall cell lung cancer (NSCLC). Dysregulated long noncoding RNAs (lncRNAs) are increasingly identified as pivotal modulators in cancer progression. NCK1 divergent transcript (NCK1-AS1) is a lncRNA that has been proven to be oncogenic in different types of human cancers. However, whether it exerts similar functions in LUSC remains to be elusive. The present study focused on investigating the influence of NCK1-AS1 on the cellular process in LUSC and exploring its underlying mechanism. Through online bioinformatics analysis, we obtained a high NCK1-AS1 level in LUSC tissues. Meanwhile, we confirmed that NCK1-AS1 was upregulated in LUSC cells. Gain- or loss-of-function assays suggested that NCK1-AS1 prompted cell proliferation and migration, whilst impeded cell apoptosis in LUSC. Mechanistically, we revealed that NCK1-AS1 induced the upregulation of its nearby gene NCK adaptor protein 1 (NCK1) at the transcriptional level by interacting with the transcription factor MYC proto-oncogene (MYC). Rescue assays indicated that NCK1 participated in the regulation of NCK1-AS1 on LUSC progression. In conclusion, we firstly demonstrated the oncogenic role of NCK1-AS1 in LUSC and illustrated its downstream molecular mechanism.
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Affiliation(s)
- Xia Zhou
- Department of Thoracic Radiotherapy, Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Hangzhou, Zhejiang, China
| | - Wuan Bao
- Institute of Cancer and Basic Medicine (IBMC), Chinese Academy of Sciences, Hangzhou, Zhejiang, China
| | - Danhong Zhang
- Department of Thoracic Radiotherapy, Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Hangzhou, Zhejiang, China
| | - Yang Yang
- Institute of Cancer and Basic Medicine (IBMC), Chinese Academy of Sciences, Hangzhou, Zhejiang, China
| | - Xianghui Du
- Department of Thoracic Radiotherapy, Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Hangzhou, Zhejiang, China
| | - Guoqin Qiu
- Department of Thoracic Radiotherapy, Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Hangzhou, Zhejiang, China
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Giovannini C, Fornari F, Piscaglia F, Gramantieri L. Notch Signaling Regulation in HCC: From Hepatitis Virus to Non-Coding RNAs. Cells 2021; 10:cells10030521. [PMID: 33804511 PMCID: PMC8000248 DOI: 10.3390/cells10030521] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 02/23/2021] [Accepted: 02/24/2021] [Indexed: 12/12/2022] Open
Abstract
The Notch family includes evolutionary conserved genes that encode for single-pass transmembrane receptors involved in stem cell maintenance, development and cell fate determination of many cell lineages. Upon activation by different ligands, and depending on the cell type, Notch signaling plays pleomorphic roles in hepatocellular carcinoma (HCC) affecting neoplastic growth, invasion capability and stem like properties. A specific knowledge of the deregulated expression of each Notch receptor and ligand, coupled with resultant phenotypic changes, is still lacking in HCC. Therefore, while interfering with Notch signaling might represent a promising therapeutic approach, the complexity of Notch/ligands interactions and the variable consequences of their modulations raises concerns when performed in undefined molecular background. The gamma-secretase inhibitors (GSIs), representing the most utilized approach for Notch inhibition in clinical trials, are characterized by important adverse effects due to the non-specific nature of GSIs themselves and to the lack of molecular criteria guiding patient selection. In this review, we briefly summarize the mechanisms involved in Notch pathway activation in HCC supporting the development of alternatives to the γ-secretase pan-inhibitor for HCC therapy.
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Affiliation(s)
- Catia Giovannini
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, 40138 Bologna, Italy
- Center for Applied Biomedical Research (CRBA), S.Orsola-Malpighi University Hospital, 40138 Bologna, Italy;
- Correspondence: ; Tel.: +39-051-2144903; Fax: +39-051-2143902
| | - Francesca Fornari
- Center for Applied Biomedical Research (CRBA), S.Orsola-Malpighi University Hospital, 40138 Bologna, Italy;
- Department for Life Quality Studies, University of Bologna, 47921 Rimini, Italy
| | - Fabio Piscaglia
- Division of Internal Medicine, IRCCS Azienda Ospedaliero-Universitaria di Bologna, 40138 Bologna, Italy; (F.P.); (L.G.)
- Department of Medical and Surgical Science (DIMEC), University of Bologna, 40138 Bologna, Italy
| | - Laura Gramantieri
- Division of Internal Medicine, IRCCS Azienda Ospedaliero-Universitaria di Bologna, 40138 Bologna, Italy; (F.P.); (L.G.)
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Lu L, Li S, Zhang Y, Luo Z, Chen Y, Ma J, Chen P, Wang W, Pu J, Wang J. GFI1-Mediated Upregulation of LINC00675 as a ceRNA Restrains Hepatocellular Carcinoma Metastasis by Sponging miR-942-5p. Front Oncol 2021; 10:607593. [PMID: 33489916 PMCID: PMC7820889 DOI: 10.3389/fonc.2020.607593] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Accepted: 11/11/2020] [Indexed: 01/18/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is a common malignant liver tumor worldwide. Tumor recurrence and metastasis contribute to the bad clinical outcome of HCC patients. Substantial studies have displayed lncRNAs modulate various tumorigenic processes of many cancers. Our current work was aimed to investigate the function of LINC00675 in HCC and to recognize the potential interactions between lncRNAs and microRNAs. GFI1 can exhibit a significant role in the progression of human malignant tumors. Firstly, GFI1 was identified using real-time PCR in HCC tissues and cells. In this work, we indicated GFI1 was remarkably reduced in HCC tissues and cells. Meanwhile, GFI1 specifically interacted with the promoter of LINC00675. Up-regulation of LINC00675 obviously repressed the migration and invasion capacity of SMCC-7721 and QGY-7703 cells in vitro. Moreover, decrease of LINC00675 competitively bound to miR-942-5p that contributed to the miRNA-mediated degradation of GFI1, thus facilitated HCC metastasis. The ceRNA function of LINC00675 in HCC cells was assessed and confirmed using RNA immunoprecipitation assay and RNA pull-down assays in our work. Additionally, we proved overexpression of miR-942-5p promoted HCC progression, which was reversed by the up-regulation of GFI1. In summary, LINC00675 might act as a prognostic marker for HCC, which can inhibit HCC development via regulating miR-942-5p and GFI1.
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Affiliation(s)
- Libai Lu
- Department of Hepatobiliary Surgery, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
| | - Shubo Li
- Department of Biochemistry and Molecular Biology, Youjiang Medical University for Nationalities, Baise, China
| | - Ying Zhang
- Library of Youjiang Medical University for Nationalities, Baise, China
| | - Zongjiang Luo
- Department of Hepatobiliary Surgery, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
| | - Yichen Chen
- Department of Hepatobiliary Surgery, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
| | - Jiasheng Ma
- Department of Hepatobiliary Surgery, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
| | - Pengyu Chen
- Department of Hepatobiliary Surgery, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
| | - Wei Wang
- Department of Hepatobiliary Surgery, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
| | - Jian Pu
- Department of Hepatobiliary Surgery, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
| | - Jianchu Wang
- Department of Hepatobiliary Surgery, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
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11
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Tan B, Li F, Chen Z, Li Y. Research Progress and Application Prospects of Long Noncoding RNAs in Gastric Neoplasms. Technol Cancer Res Treat 2021; 20:15330338211004940. [PMID: 33769145 PMCID: PMC8010804 DOI: 10.1177/15330338211004940] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Revised: 01/16/2021] [Accepted: 02/25/2021] [Indexed: 12/01/2022] Open
Abstract
Long noncoding RNAs (lncRNAs) are noncoding RNAs longer than 200 nt that have almost no function for encoding proteins. As an important regulatory molecule of the human genome, lncRNAs play a regulatory role in the human body. LncRNAs have a variety of functions, such as signaling, guiding, baiting or scaffolding of functional proteins, and are closely related to tumor development. Gastric cancer is one of the most common malignant tumors. It has a high incidence, a low early diagnosis rate, and a poor prognosis, and it seriously threatens human health. Abnormal expression of lncRNAs can affect the occurrence, development, invasion and metastasis of gastric cancer. Therefore, lncRNAs are expected to become important biomarkers and new targets for the diagnosis and treatment of gastric cancer. LncRNAs have a significant potential to guide the diagnosis, treatment and prognosis of gastric cancer. This article reviews lncRNAs and the mechanisms that have been discovered in recent years related to gastrointestinal tumors.
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Affiliation(s)
- Bibo Tan
- The Third Department of Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Fang Li
- Department of Pathology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Zihao Chen
- The Third Department of Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
- Graduate School of Hebei Medical University, Shijiazhuang, China
| | - Yong Li
- The Third Department of Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
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12
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Gupta M, Chandan K, Sarwat M. Role of microRNA and Long Non-Coding RNA in Hepatocellular Carcinoma. Curr Pharm Des 2020; 26:415-428. [PMID: 31939724 PMCID: PMC7403690 DOI: 10.2174/1381612826666200115093835] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Accepted: 12/04/2019] [Indexed: 02/08/2023]
Abstract
Hepatocellular carcinoma (HCC) accounts for about 80-90% of all liver cancers and is found to be the third most common cause of cancer mortality in the Asia-Pacific region. Risk factors include hepatitis B and C virus, cirrhosis, aflatoxin-contaminated food, alcohol, and diabetes. Surgically removing the tumor tissue seems effective but a high chance of recurrence has led to an urgent need to develop novel molecules for the treatment of HCC. Clinical management with sorafenib is found to be effective but it is only able to prolong survival for a few months. Various side effects like gastrointestinal and abdominal pain, hypertension, and hemorrhage are also associated with sorafenib, which calls for the unmet need of effective therapies against HCC. Similarly, the genetic mechanisms behind the occurrence of HCC are still unknown and need to be expounded further for developing newer candidates. Since unearthing the concept of these variants, transcriptomics has revealed the role of non-coding RNAs (ncRNAs) in many cellular, physiological and pathobiological processes. They are also found to be widely associated and abundantly expressed in a variety of cancer. Aberrant expression and mutations are closely related to tumorigenesis and metastasis and hence are classified as novel biomarkers and therapeutic targets for the treatment of cancer, including HCC. Herein, this review summarises the relationship between ncRNAs and hepatocellular carcinoma.
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Affiliation(s)
- Meenakshi Gupta
- Amity Institute of Pharmacy, Amity University, Noida-201313, Uttar Pradesh, India
| | - Kumari Chandan
- Amity Institute of Pharmacy, Amity University, Noida-201313, Uttar Pradesh, India
| | - Maryam Sarwat
- Amity Institute of Pharmacy, Amity University, Noida-201313, Uttar Pradesh, India
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Takei Y, Hara T, Suzuki A, Mihara K, Yanagihara K. Long Noncoding RNA HOTAIR Promotes Epithelial-Mesenchymal Transition and Is a Suitable Target to Inhibit Peritoneal Dissemination in Human Scirrhous Gastric Cancers. Pathobiology 2020; 87:277-290. [PMID: 32937635 DOI: 10.1159/000508350] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Accepted: 05/02/2020] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVES Scirrhous gastric cancer, which accounts for approximately 10% of all gastric cancers, often disseminates to the peritoneum, leading to intractable cases with poor prognosis. There is an urgent need for new treatment approaches for this difficult cancer. METHODS We previously established an original cell line, HSC-60, from a scirrhous gastric cancer patient and isolated a peritoneal-metastatic cell line, 60As6, in nude mice following orthotopic inoculations. In the present study, we focused on the expression of long noncoding ribonucleic acid (RNA) (lncRNA) in the cell lines and investigated the mechanism on peritoneal dissemination. RESULTS We demonstrated that an lncRNA, HOX transcript antisense RNA (HOTAIR), is expressed significantly more highly in 60As6 than HSC-60 cells. Then, using both HOTAIR knockdown and overexpression experiments, we showed that high-level expression of HOTAIR promotes epithelial-mesenchymal transition (EMT) in 60As6 cells. By luciferase assay, we found that HOTAIR directly targets and binds to miR-217, and that miR-217 directly binds to Zinc finger E-box-binding homeobox 1 (ZEB1). The knockdown of HOTAIR in 60As6 cells significantly reduced the invasion activity and peritoneal dissemination - and significantly prolonged the survival - in the orthotopic tumor mouse model. CONCLUSION An EMT-associated pathway (the HOTAIR-miR-217-ZEB1 axis) appears to inhibit peritoneal dissemination and could lead to a novel therapeutic strategy against scirrhous gastric cancer in humans.
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Affiliation(s)
- Yoshifumi Takei
- Department of Medicinal Biochemistry, School of Pharmacy, Aichi Gakuin University, Nagoya, Japan,
| | - Toshifumi Hara
- Department of Medicinal Biochemistry, School of Pharmacy, Aichi Gakuin University, Nagoya, Japan
| | - Akiko Suzuki
- Department of Medicinal Biochemistry, School of Pharmacy, Aichi Gakuin University, Nagoya, Japan.,Department of Hematology and Oncology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan
| | - Keichiro Mihara
- Department of Hematology and Oncology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan
| | - Kazuyoshi Yanagihara
- Division of Translational Research, Exploratory Oncology and Clinical Trial Center, National Cancer Center, Kashiwa, Chiba, Japan
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14
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Ding X, Qi C, Min J, Xu Z, Huang K, Tang H. Long non-coding RNA HEIH suppresses the expression of TP53 through enhancer of zeste homolog 2 in oesophageal squamous cell carcinoma. J Cell Mol Med 2020; 24:10551-10559. [PMID: 32729661 PMCID: PMC7521320 DOI: 10.1111/jcmm.15673] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 06/28/2020] [Accepted: 07/01/2020] [Indexed: 12/14/2022] Open
Abstract
It is increasingly evident that the molecular and biological functions of long non-coding RNAs (lncRNA) are vital for understanding the molecular biology and progression of cancer. The lncRNA-HEIH, a newly identified lncRNA, has been demonstrated to be up-regulated in hepatocellular cancer. However, little is known about its role in oesophageal squamous cell carcinoma (ESCC). In the present study, an obvious up-regulation of lncRNA-HEIH was observed in ESCC compared to the adjacent normal tissues. Meanwhile, patients with high expression of lncRNA-HEIH have significantly poorer prognosis than those with low expression. We further found that lncRNA-HEIH was associated with enhancer of zeste homolog 2 (EZH2) and that this association led to the repression of TP53. These findings indicate that lncRNA-HEIH may serve as a prognostic marker and a potential therapeutic target for ESCC.
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MESH Headings
- Aged
- Animals
- Disease-Free Survival
- Enhancer of Zeste Homolog 2 Protein/antagonists & inhibitors
- Enhancer of Zeste Homolog 2 Protein/genetics
- Enhancer of Zeste Homolog 2 Protein/physiology
- Esophageal Neoplasms/genetics
- Esophageal Neoplasms/mortality
- Esophageal Neoplasms/pathology
- Esophageal Squamous Cell Carcinoma/genetics
- Esophageal Squamous Cell Carcinoma/mortality
- Esophageal Squamous Cell Carcinoma/pathology
- Female
- Gene Expression Regulation, Neoplastic/genetics
- Gene Regulatory Networks
- Genes, Reporter
- Genes, p53
- Humans
- Kaplan-Meier Estimate
- Male
- Mice, Inbred BALB C
- Mice, Nude
- Middle Aged
- Neoplasm Invasiveness
- Neoplasm Proteins/antagonists & inhibitors
- Neoplasm Proteins/biosynthesis
- Neoplasm Proteins/genetics
- Neoplasm Proteins/physiology
- Neoplasm Transplantation
- Polycomb Repressive Complex 2/metabolism
- RNA/genetics
- RNA/metabolism
- RNA, Long Noncoding/genetics
- RNA, Long Noncoding/metabolism
- RNA, Neoplasm/genetics
- RNA, Small Interfering/genetics
- RNA, Small Interfering/pharmacology
- Tumor Suppressor Protein p53/biosynthesis
- Up-Regulation
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Affiliation(s)
- XinYu Ding
- Department of Minimally Invasive Thoracic Surgery CenterShanghai Changzheng HospitalSecond Military Medical UniversityShanghaiChina
| | - Chen Qi
- Department of Cardiothoracic SurgeryJinling HospitalMedical School of Nanjing UniversityNanjingChina
| | - Jie Min
- Department of Minimally Invasive Thoracic Surgery CenterShanghai Changzheng HospitalSecond Military Medical UniversityShanghaiChina
| | - ZhiFei Xu
- Department of Minimally Invasive Thoracic Surgery CenterShanghai Changzheng HospitalSecond Military Medical UniversityShanghaiChina
| | - KeNan Huang
- Department of Minimally Invasive Thoracic Surgery CenterShanghai Changzheng HospitalSecond Military Medical UniversityShanghaiChina
| | - Hua Tang
- Department of Minimally Invasive Thoracic Surgery CenterShanghai Changzheng HospitalSecond Military Medical UniversityShanghaiChina
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15
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Circulating Tumour DNAs and Non-Coding RNAs as Liquid Biopsies for the Management of Colorectal Cancer Patients. GASTROINTESTINAL DISORDERS 2020. [DOI: 10.3390/gidisord2030022] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Circulating tumour DNAs and non-coding RNAs present in body fluids have been under investigation as tools for cancer diagnosis, disease monitoring, and prognosis for many years. These so-called liquid biopsies offer the opportunity to obtain information about the molecular make-up of a cancer in a minimal invasive way and offer the possibility to implement theranostics for precision oncology. Furthermore, liquid biopsies could overcome the limitations of tissue biopsies in capturing the complexity of tumour heterogeneity within the primary cancer and among different metastatic sites. Liquid biopsies may also be implemented to detect early tumour formation or to monitor cancer relapse of response to therapy with greater sensitivity compared with the currently available protein-based blood biomarkers. Most colorectal cancers are often diagnosed at late stages and have a high mortality rate. Hence, biomolecules as nucleic acids present in liquid biopsies might have prognostic potential and could serve as predictive biomarkers for chemotherapeutic regimens. This review will focus on the role of circulating tumour DNAs and non-coding RNAs as diagnostic, prognostic, and predictive biomarkers in the context of colorectal cancer.
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16
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Zhang X, Kang Z, Xie X, Qiao W, Zhang L, Gong Z, Chen Y, Shen W. Silencing of HIF-1α inhibited the expression of lncRNA NEAT1 to suppress development of hepatocellular carcinoma under hypoxia. Am J Transl Res 2020; 12:3871-3883. [PMID: 32774741 PMCID: PMC7407699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Accepted: 06/02/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND We aimed to explore the relationship between hypoxia-inducible factors-1α (HIF-1α) and lncRNA nuclear-enriched abundant transcript 1 (NEAT1), and their functions on hepatocellular carcinoma (HCC) under hypoxia. METHODS HIF-1α and NEAT1 levels in HCC tissues and corresponding non-tumor tissues were determined by qRT-PCR, and the correlations of their levels in HCC tissues were analyzed by Pearson test. The relationship between overall survival and the two genes (HIF-1α and NEAT1) for HCC patients was detected by log-rank test. Clinicopathological features of NEAT1 in HCC patients were collected. HIF-1α and NEAT1 levels in HCC cells were measured by qRT-PCR and Western blot, and their relationship was determined by co-immunoprecipitation (Co-IP) assay. Cell viability, migration and invasion were detected by CCK-8, scratch wound healing and transwell assay, respectively. The interaction of NEAT1 with HIF-1α in tumor development was determined by xenograft tumor assays in nude mice. RESULTS NEAT1 and HIF-1α were highly expressed and showed a positive relationship in HCC tissues, and specifically, higher NEAT1 expression was positively associated with advanced TNM stage and metastasis in HCC patients. Up-regulated NEAT1 or HIF-1α in HCC patients had poorer prognosis. NEAT1 was induced by HIF-1α and suppressed by siHIF-1α. NEAT1 overexpression further promoted development of HCC under hypoxia while promoting cell viability, migration and invasion and suppressing apoptosis, and such effects were reversed by down-regulating HIF-1α. NEAT1 overexpression promoted tumor growth, which was reversed by down-regulating HIF-1α. CONCLUSION HIF-1α knockdown inhibits NEAT1 expression, which suppresses progression of HCC and improves its prognosis.
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Affiliation(s)
- Xiuming Zhang
- Department of Radiology, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, The Affiliated Cancer Hospital of Nanjing Medical UniversityNanjing, China
| | - Zheng Kang
- Department of Radiology, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, The Affiliated Cancer Hospital of Nanjing Medical UniversityNanjing, China
| | - Xiaodong Xie
- Department of Radiology, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, The Affiliated Cancer Hospital of Nanjing Medical UniversityNanjing, China
| | - Wei Qiao
- Department of Radiology, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, The Affiliated Cancer Hospital of Nanjing Medical UniversityNanjing, China
| | - Lei Zhang
- Department of Radiology, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, The Affiliated Cancer Hospital of Nanjing Medical UniversityNanjing, China
| | - Zhen Gong
- Department of Gynecology, Women’s Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care HospitalNanjing, China
| | - Yan Chen
- Department of Radiology, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, The Affiliated Cancer Hospital of Nanjing Medical UniversityNanjing, China
| | - Wenrong Shen
- Department of Radiology, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, The Affiliated Cancer Hospital of Nanjing Medical UniversityNanjing, China
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17
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Tingting Z, Xiaojing L, Xiaoyan T, Keqin H, Junjun Q. The Antisense long noncoding RNA AGAP2-AS1 regulates cell proliferation and metastasis in Epithelial Ovarian Cancer. J Cancer 2020; 11:5318-5328. [PMID: 32742478 PMCID: PMC7391213 DOI: 10.7150/jca.36636] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Accepted: 06/15/2020] [Indexed: 12/27/2022] Open
Abstract
Antisense long noncoding RNAs serve as important regulators of protein-coding genes and contribute to tumorigenesis and metastasis. AGAP2-AS1, an antisense lncRNA transcribed from AGAP2, is involved in various cancer types. However, the clinical significance, biological roles and regulatory mechanisms of AGAP2-AS1 in epithelial ovarian cancer (EOC) have not been thoroughly elucidated to date. In this study, we demonstrated the expression pattern and biological roles of AGAP2-AS1 in EOC. Clinically, AGAP2-AS1 expression was decreased in EOC tissues compared to that in the controls. Low expression of AGAP2-AS1 was associated with advanced FIGO stage, high histological grade, serous subtype and lymph node metastasis in patients with EOC. AGAP2-AS1 inhibited cell migration, invasion and proliferation in vitro. AGAP2-AS1 suppressed tumor growth in vivo. Mechanistically, AGAP2-AS1 inhibited cell metastasis and proliferation by downregulating KRAS, FGFR4, and CTSK and suppressing epithelial-mesenchymal transition. In conclusion, we provide the first evidence for the tumor-suppressing effect of AGAP2-AS1 in EOC and demonstrate that AGAP2-AS1 may represent a promising therapeutic target for EOC patients.
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Affiliation(s)
- Zheng Tingting
- Department of Gynaecology, Obstetrics and Gynaecology Hospital, Fudan University, 419 Fangxie Road, Shanghai 200011, China Shanghai 200011, China.,Department of Obstetrics and Gynaecology of Shanghai Medical College, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China.,Shanghai Key Laboratory of Female Reproductive Endocrine-Related Diseases, 413 Zhaozhou Road, Shanghai 200011, China.,Department of Gynaecology, The First affiliated Hospital of Zhengzhou University, Zhengzhou University, 1 Jianshe Road, Zhengzhou 471000, Zhengzhou 471000, China
| | - Lin Xiaojing
- Department of Gynaecology, Obstetrics and Gynaecology Hospital, Fudan University, 419 Fangxie Road, Shanghai 200011, China Shanghai 200011, China.,Department of Obstetrics and Gynaecology of Shanghai Medical College, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China.,Shanghai Key Laboratory of Female Reproductive Endocrine-Related Diseases, 413 Zhaozhou Road, Shanghai 200011, China
| | - Tang Xiaoyan
- Department of Gynaecology, Obstetrics and Gynaecology Hospital, Fudan University, 419 Fangxie Road, Shanghai 200011, China Shanghai 200011, China.,Department of Obstetrics and Gynaecology of Shanghai Medical College, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China.,Shanghai Key Laboratory of Female Reproductive Endocrine-Related Diseases, 413 Zhaozhou Road, Shanghai 200011, China
| | - Hua Keqin
- Department of Gynaecology, Obstetrics and Gynaecology Hospital, Fudan University, 419 Fangxie Road, Shanghai 200011, China Shanghai 200011, China.,Department of Obstetrics and Gynaecology of Shanghai Medical College, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China.,Shanghai Key Laboratory of Female Reproductive Endocrine-Related Diseases, 413 Zhaozhou Road, Shanghai 200011, China
| | - Qiu Junjun
- Department of Gynaecology, Obstetrics and Gynaecology Hospital, Fudan University, 419 Fangxie Road, Shanghai 200011, China Shanghai 200011, China.,Department of Obstetrics and Gynaecology of Shanghai Medical College, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China.,Shanghai Key Laboratory of Female Reproductive Endocrine-Related Diseases, 413 Zhaozhou Road, Shanghai 200011, China
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18
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Ratti M, Lampis A, Ghidini M, Salati M, Mirchev MB, Valeri N, Hahne JC. MicroRNAs (miRNAs) and Long Non-Coding RNAs (lncRNAs) as New Tools for Cancer Therapy: First Steps from Bench to Bedside. Target Oncol 2020; 15:261-278. [PMID: 32451752 PMCID: PMC7283209 DOI: 10.1007/s11523-020-00717-x] [Citation(s) in RCA: 168] [Impact Index Per Article: 42.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Non-coding RNAs represent a significant proportion of the human genome. After having been considered as 'junk' for a long time, non-coding RNAs are now well established as playing important roles in maintaining cellular homeostasis and functions. Some non-coding RNAs show cell- and tissue-specific expression patterns and are specifically deregulated under pathological conditions (e.g. cancer). Therefore, non-coding RNAs have been extensively studied as potential biomarkers in the context of different diseases with a focus on microRNAs (miRNAs) and long non-coding RNAs (lncRNAs) for several years. Since their discovery, miRNAs have attracted more attention than lncRNAs in research studies; however, both families of non-coding RNAs have been established to play an important role in gene expression control, either as transcriptional or post-transcriptional regulators. Both miRNAs and lncRNAs can regulate key genes involved in the development of cancer, thus influencing tumour growth, invasion, and metastasis by increasing the activation of oncogenic pathways and limiting the expression of tumour suppressors. Furthermore, miRNAs and lncRNAs are also emerging as important mediators in drug-sensitivity and drug-resistance mechanisms. In the light of these premises, a number of pre-clinical and early clinical studies are exploring the potential of non-coding RNAs as new therapeutics. The aim of this review is to summarise the latest knowledge of the use of miRNAs and lncRNAs as therapeutic tools for cancer treatment.
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Affiliation(s)
- Margherita Ratti
- Division of Molecular Pathology, The Institute of Cancer Research, London, UK
- Centre for Evolution and Cancer, The Institute of Cancer Research, London, UK
- Medical Department, Division of Oncology, ASST di Cremona, Ospedale di Cremona, Cremona, Italy
| | - Andrea Lampis
- Division of Molecular Pathology, The Institute of Cancer Research, London, UK
- Centre for Evolution and Cancer, The Institute of Cancer Research, London, UK
| | - Michele Ghidini
- Division of Medical Oncology, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Massimiliano Salati
- Division of Molecular Pathology, The Institute of Cancer Research, London, UK
- Centre for Evolution and Cancer, The Institute of Cancer Research, London, UK
| | - Milko B Mirchev
- Clinic of Gastroenterology, Medical University, Varna, Bulgaria
| | - Nicola Valeri
- Division of Molecular Pathology, The Institute of Cancer Research, London, UK
- Centre for Evolution and Cancer, The Institute of Cancer Research, London, UK
- Department of Medicine, The Royal Marsden NHS Foundation Trust, London, UK
| | - Jens C Hahne
- Division of Molecular Pathology, The Institute of Cancer Research, London, UK.
- Centre for Evolution and Cancer, The Institute of Cancer Research, London, UK.
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19
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Targeting the Epigenetic Non-Coding RNA MALAT1/Wnt Signaling Axis as a Therapeutic Approach to Suppress Stemness and Metastasis in Hepatocellular Carcinoma. Cells 2020; 9:cells9041020. [PMID: 32326045 PMCID: PMC7226390 DOI: 10.3390/cells9041020] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2020] [Revised: 04/13/2020] [Accepted: 04/15/2020] [Indexed: 02/07/2023] Open
Abstract
Background: With recorded under-performance of current standard therapeutic strategies as highlighted by high rates of post-treatment (resection or local ablation) recurrence, resistance to chemotherapy, poor overall survival, and an increasing global incidence, hepatocellular carcinoma (HCC) constitutes a medical challenge. Accumulating evidence implicates the presence of HCC stem cells (HCC-SCs) in HCC development, drug-resistance, recurrence, and progression. Therefore, treatment strategies targeting both HCC-SCs and non-CSCs are essential. Methods: Recently, there has been an increasing suggestion of MALAT1 oncogenic activity in HCC; however, its role in HCC stemness remains unexplored. Herein, we investigated the probable role of MALAT1 in the SCs-like phenotype of HCC and explored likely molecular mechanisms by which MALAT1 modulates HCC-SCs-like and metastatic phenotypes. Results: We showed that relative to normal, cirrhotic, or dysplastic liver conditions, MALAT1 was aberrantly expressed in HCC, similar to its overexpression in Huh7, Mahlavu, and SK-Hep1 HCC cells lines, compared to the normal liver cell line THLE-2. We also demonstrated a positive correlation between MALAT1 expression and poor cell differentiation status in HCC using RNAscope. Interestingly, we demonstrated that shRNA-mediated silencing of MALAT1 concomitantly downregulated the expression levels of β-catenin, Stat3, c-Myc, CK19, vimentin, and Twist1 proteins, inhibited HCC oncogenicity, and significantly suppressed the HCC-SCs-related dye-effluxing potential of HCC cells and reduced their ALDH-1 activity, partially due to inhibited MALAT1-β-catenin interaction. Additionally, using TOP/FOP (TCL/LEF-Firefly luciferase) Flash, RT-PCR, and western blot assays, we showed that silencing MALAT1 downregulates β-catenin expression, dysregulates the canonical Wnt signaling pathway, and consequently attenuates HCC tumorsphere formation efficiency, with concurrent reduction in CD133+ and CD90+ HCC cell population, and inhibits tumor growth in SK-Hep1-bearing mice. Conclusions: Taken together, our data indicate that MALAT1/Wnt is a targetable molecular candidate, and the therapeutic targeting of MALAT1/Wnt may constitute a novel promising anticancer strategy for HCC treatment.
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20
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Wang D, Chen F, Zeng T, Tang Q, Chen B, Chen L, Dong Y, Li X. Comprehensive biological function analysis of lncRNAs in hepatocellular carcinoma. Genes Dis 2020; 8:157-167. [PMID: 33997162 PMCID: PMC8099694 DOI: 10.1016/j.gendis.2019.12.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 12/16/2019] [Accepted: 12/31/2019] [Indexed: 12/19/2022] Open
Abstract
Thousands of long non-coding RNAs (lncRNAs) have been discovered in human genomes by gene chip, next-generation sequencing, and/or other methods in recent years, which represent a significant subset of the universal genes involved in a wide range of biological functions. An abnormal expression of lncRNAs is associated with the growth, invasion, and metastasis of various types of human cancers, including hepatocellular carcinoma (HCC), which is an aggressive, highly malignant, and invasive tumor, and a poor prognosis in China. With a more in-depth understanding of lncRNA research for HCC and the emergence of new molecular-targeted therapies, the diagnosis, treatment, and prognosis of HCC will be considerably improved. Therefore, this review is expected to provide recommendations and directions for future lncRNA research for HCC.
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Affiliation(s)
- Dan Wang
- Department of Clinical Laboratory, People's Hospital of Rongchang District, Chongqing, Rongchang 402460, PR China.,Key Laboratory of Molecular Biology of Infectious Diseases, Ministry of Education, Chongqing Medical University, Chongqing, 400016, PR China
| | - Fengjiao Chen
- Key Laboratory of Molecular Biology of Infectious Diseases, Ministry of Education, Chongqing Medical University, Chongqing, 400016, PR China
| | - Tao Zeng
- Chengdu Women's and Children's Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Sichuan Province, Chengdu, 611731, PR China
| | - Qingxia Tang
- Department of Clinical Laboratory, People's Hospital of Rongchang District, Chongqing, Rongchang 402460, PR China
| | - Bing Chen
- Department of Clinical Laboratory, People's Hospital of Rongchang District, Chongqing, Rongchang 402460, PR China
| | - Ling Chen
- Key Laboratory of Molecular Biology of Infectious Diseases, Ministry of Education, Chongqing Medical University, Chongqing, 400016, PR China
| | - Yan Dong
- Clinical Molecular Medicine Testing Center, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, PR China
| | - Xiaosong Li
- Clinical Molecular Medicine Testing Center, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, PR China
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21
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Wang Q, Yan G. IDLDA: An Improved Diffusion Model for Predicting LncRNA-Disease Associations. Front Genet 2019; 10:1259. [PMID: 31867043 PMCID: PMC6909379 DOI: 10.3389/fgene.2019.01259] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2019] [Accepted: 11/14/2019] [Indexed: 11/13/2022] Open
Abstract
It has been demonstrated that long non-coding RNAs (lncRNAs) play important roles in a variety of biological processes associated with human diseases. However, the identification of lncRNA–disease associations by experimental methods is time-consuming and labor-intensive. Computational methods provide an effective strategy to predict more potential lncRNA–disease associations to some degree. Based on the hypothesis that phenotypically similar diseases are often associated with functionally similar lncRNAs and vice versa, we developed an improved diffusion model to predict potential lncRNA–disease associations (IDLDA). As a result, our model performed well in the global and local cross-validations, which indicated that IDLDA had a great performance in predicting novel associations. Case studies of colon cancer, breast cancer, and gastric cancer were also implemented, all lncRNAs which ranked top 10 in both databases were verified by databases and related literature. The results showed that IDLDA might play a key role in biomedical research.
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Affiliation(s)
- Qi Wang
- Academy of Mathematics and Systems Science, Chinese Academy of Sciences, Beijing, China.,School of Mathematical Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Guiying Yan
- Academy of Mathematics and Systems Science, Chinese Academy of Sciences, Beijing, China.,School of Mathematical Sciences, University of Chinese Academy of Sciences, Beijing, China
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22
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Smith CM, Catchpoole D, Hutvagner G. Non-Coding RNAs in Pediatric Solid Tumors. Front Genet 2019; 10:798. [PMID: 31616462 PMCID: PMC6764412 DOI: 10.3389/fgene.2019.00798] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Accepted: 07/30/2019] [Indexed: 12/15/2022] Open
Abstract
Pediatric solid tumors are a diverse group of extracranial solid tumors representing approximately 40% of childhood cancers. Pediatric solid tumors are believed to arise as a result of disruptions in the developmental process of precursor cells which lead them to accumulate cancerous phenotypes. In contrast to many adult tumors, pediatric tumors typically feature a low number of genetic mutations in protein-coding genes which could explain the emergence of these phenotypes. It is likely that oncogenesis occurs after a failure at many different levels of regulation. Non-coding RNAs (ncRNAs) comprise a group of functional RNA molecules that lack protein coding potential but are essential in the regulation and maintenance of many epigenetic and post-translational mechanisms. Indeed, research has accumulated a large body of evidence implicating many ncRNAs in the regulation of well-established oncogenic networks. In this review we cover a range of extracranial solid tumors which represent some of the rarer and enigmatic childhood cancers known. We focus on two major classes of ncRNAs, microRNAs and long non-coding RNAs, which are likely to play a key role in the development of these cancers and emphasize their functional contributions and molecular interactions during tumor formation.
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Affiliation(s)
- Christopher M Smith
- School of Biomedical Engineering, University of Technology Sydney, Sydney, Australia
| | - Daniel Catchpoole
- School of Software, University of Technology Sydney, Sydney, Australia.,The Tumour Bank-CCRU, Kids Research, The Children's Hospital at Westmead, Sydney, Australia
| | - Gyorgy Hutvagner
- School of Biomedical Engineering, University of Technology Sydney, Sydney, Australia
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23
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Shang W, Adzika GK, Li Y, Huang Q, Ding N, Chinembiri B, Rashid MSI, Machuki JO. Molecular mechanisms of circular RNAs, transforming growth factor-β, and long noncoding RNAs in hepatocellular carcinoma. Cancer Med 2019; 8:6684-6699. [PMID: 31523930 PMCID: PMC6826001 DOI: 10.1002/cam4.2553] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 08/23/2019] [Accepted: 08/26/2019] [Indexed: 12/17/2022] Open
Abstract
At the heart of hepatocellular carcinoma (HCC) lies disruption of signaling pathways at the level of molecules, genes, and cells. Non‐coding RNAs (ncRNAs) have been implicated in the disease progression of HCC. For instance, dysregulated expression of circular RNAs (circRNAs) has been observed in patients with HCC. As such, these RNAs are potential therapeutic targets and diagnostic markers for HCC. Long non‐coding RNAs (lncRNAs), a type of ncRNA, have also been recognized to participate in the initiation and progression of HCC. Transforming growth factor‐beta (TGF‐β) is another element which is now recognized to play crucial roles in HCC. It has been implicated in many biological processes such as survival, immune surveillance, and cell proliferation. In HCC, TGF‐β promotes disease progression by two mechanisms: an intrinsic signaling pathway and the extrinsic pathway. Through these pathways, it modulates various microenvironment factors such as inflammatory mediators and fibroblasts. An interesting yet‐to‐be resolved concept is whether the HCC‐promoting role of TGF‐β pathways is limited to a subset of HCC patients or it is involved in the whole process of HCC development. This review summarizes recent advancements to highlight the roles of circRNAs, lncRNAs, and TGF‐β in HCC.
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Affiliation(s)
- Wenkang Shang
- Department of Laboratory Medicine, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai, China
| | | | - Yujie Li
- Department of Clinical Laboratory, The First People's Hospital of Kunshan, Kunshan, Jiangsu, China
| | - Qike Huang
- The Third Department of Hepatic Surgery, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai, China
| | - Ningding Ding
- Department of Neurophysiology and Location Diagnosis, Guangdong 39 Brain Hospital, Guangzhou, Guangdong, China
| | - Bianca Chinembiri
- Physiology Department, Xuzhou Medical University, Xuzhou, Jiangsu, China
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Bufalin suppresses the migration and invasion of prostate cancer cells through HOTAIR, the sponge of miR-520b. Acta Pharmacol Sin 2019; 40:1228-1236. [PMID: 31028291 DOI: 10.1038/s41401-019-0234-8] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2018] [Accepted: 03/30/2019] [Indexed: 12/14/2022] Open
Abstract
Bufalin, the major active component of the traditional Chinese medicine ChanSu obtained from the skin and parotid venom glands of toads, has long been known as an anticancer agent. Recent studies show that microRNAs (miRs) are involved in the anticancer activities of bufalin, while long non-coding RNAs (lncRNAs) are known to interact with miRNAs to regulate various biological functions. In this paper, we investigated the possible network related to the antimetastatic effect of bufalin in prostate cancer (PCa) cells. We demonstrated that bufalin (0.05-10 µM) dose-dependently suppressed the proliferation of prostate cancer DU145 and PC3 cells with IC50 values of 0.89 and 1.28 µM, respectively. Furthermore, bufalin treatment significantly suppressed the cell migration and invasion. To explore the role of lncRNAs in the antimetastatic activity of bufalin, we used an lncRNA microarray and found that HOX transcript antisense RNA (HOTAIR) was the most markedly downregulated lncRNA in bufalin-treated PCa cells. Overexpression of HOTAIR counteracted the suppressing effects of bufalin on DU145 and PC3 cells. We then predicted and verified that HOTAIR upregulated FGFR1 expression by sponging miR-520b in PCa cells. In 40 patients with PCa bone metastasis, we used in situ hybridization or immunohistochemical assay to assess the HOTAIR and FGFR1 expression, which revealed that both HOTAIR and FGFR1 expression were significantly higher in bone metastasis tissues than in the primary PCa tissues. In addition, the level of serum HOTAIR was positively associated with the levels of serum bone metabolic markers (CTx, OST, B-ALP and PINP) and may serve as a reasonable biomarker for PCa bone metastasis. Taken together, this is the first study revealing that HOTAIR promotes PCa bone metastasis, and bufalin may be a promising candidate for the treatment of this disease.
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Shan Y, Li P. Long Intergenic Non-Protein Coding RNA 665 Regulates Viability, Apoptosis, and Autophagy via the MiR-186-5p/MAP4K3 Axis in Hepatocellular Carcinoma. Yonsei Med J 2019; 60:842-853. [PMID: 31433582 PMCID: PMC6704017 DOI: 10.3349/ymj.2019.60.9.842] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Revised: 03/23/2019] [Accepted: 03/29/2019] [Indexed: 02/07/2023] Open
Abstract
PURPOSE Long intergenic non-protein coding RNA 665 (LINC00665) plays a vital role in the development of cancer. Its function in hepatocellular carcinoma (HCC), however, remains largely unknown. MATERIALS AND METHODS The expressions of LINC00665, miR-186-5p, and MAP4K3 were determined by qRT-PCR. Cell viability and apoptosis were evaluated by MTT and flow cytometry, respectively. Autophagic puncta formation was observed by fluorescence microscopy. Bioinformatics analysis, luciferase reporter assay, RNA immunoprecipitation, and RNA pulldown were performed to identify associations among LINC00665, miR-186-5p, and MAP4K3. Western blot was utilized to examine the expressions of MAP4K3, Beclin-1, and LC3. Tumor growth was evaluated in a xenograft model. RESULTS Elevations in LINC00665 were observed in HCC tissues and cells. The overall survival of HCC patients with high levels of LINC00665 was shorter than those with low levels. In vitro, LINC00665 depletion inhibited viability and induced apoptosis and autophagy. miR-186-5p interacted with LINC00665 and was downregulated in HCC tissues and cells. Upregulation of miR-186-5p inhibited viability and induced apoptosis and autophagy, which were attenuated by upregulation of LINC00665. MAP4K3 was found to possess binding sites with miR-186-5p and was upregulated in HCC tissues and cells. MAP4K3 depletion inhibited viability and induced apoptosis and autophagy, which were attenuated by miR-186-5p inhibitor. In vivo, miR-186-5p expression was negatively correlated with LINC00665 or MAP4K3 in HCC tissues, while LINC00665 was positively correlated with MAP4K3. LINC00665 knockdown suppressed tumor growth. CONCLUSION LINC00665 was involved in cell viability, apoptosis, and autophagy in HCC via miR-186-5p/MAP4K3 axis, which may provide a new approach for HCC treatment.
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Affiliation(s)
- Yong Shan
- Department of General Surgery, Jinchang Central Hospital, Jinchang, Gansu, China.
| | - Ping Li
- Department of Ultrasound, Shenzhen Hospital of Southern Medical University, Shenzhen, China
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Kim SS, Harford JB, Moghe M, Rait A, Pirollo KF, Chang EH. Targeted nanocomplex carrying siRNA against MALAT1 sensitizes glioblastoma to temozolomide. Nucleic Acids Res 2019; 46:1424-1440. [PMID: 29202181 PMCID: PMC5815062 DOI: 10.1093/nar/gkx1221] [Citation(s) in RCA: 95] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Accepted: 11/27/2017] [Indexed: 12/25/2022] Open
Abstract
Intrinsic therapeutic resistance especially in cancer stem cells (CSCs) together with extensive tumor cell infiltration and restricted permeation of the blood-brain barrier (BBB) by drugs may all contribute to the treatment failure in patients with glioblastoma multiforme (GBM). Accumulating evidence suggests that long non-coding RNA (lncRNA), metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) plays a role in tumor cell infiltration and therapeutic resistance of GBM. Using our tumor-targeted nanocomplex, we have modulated the expression of MALAT1 and investigated its impact on GBM cells. Importantly, our nanocomplex is able to target CSCs that are considered to be the prime culprits in therapeutic resistance and recurrence of GBM. Attenuation of MALAT1 by RNA interference significantly lowered the growth, motility and stemness of GBM cells. In addition, silencing of MALAT1 clearly improved the sensitivity of GBM cells to chemotherapeutic agents including the current first-line therapy of GBM [temozolomide (TMZ)]. In animal models of GBM, tumor involution with a modest but statistically significant survival benefit was achieved with concurrent treatment of TMZ and nanocomplex-mediated silencing of MALAT1. These results suggest that combining standard TMZ treatment with lncRNA-targeting therapies using our nanocomplex could substantially enhance the very poor prognosis for GBM patients.
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Affiliation(s)
- Sang-Soo Kim
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC 20057, USA.,SynerGene Therapeutics, Inc., Potomac, MD 20854, USA
| | - Joe B Harford
- SynerGene Therapeutics, Inc., Potomac, MD 20854, USA
| | - Manish Moghe
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC 20057, USA
| | - Antonina Rait
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC 20057, USA
| | - Kathleen F Pirollo
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC 20057, USA
| | - Esther H Chang
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC 20057, USA
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Han W, Yu G, Meng X, Hong H, Zheng L, Wu X, Zhang D, Yan B, Ma Y, Li X, Wang Q. Potential of C1QTNF1-AS1 regulation in human hepatocellular carcinoma. Mol Cell Biochem 2019; 460:37-51. [PMID: 31222560 PMCID: PMC6745033 DOI: 10.1007/s11010-019-03569-w] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Accepted: 04/13/2019] [Indexed: 12/27/2022]
Abstract
The aim of our study is to explore the regulation of C1QTNF1-AS1 on its target miR-221-3p/SOCS3 in human hepatocellular carcinoma (HCC). To explore the underlying molecular regulation of non-coding RNA for HCC, differentially expressed patterns of lncRNAs and genes were examined by RNA-seq. GO and KEGG pathway analysis were done based on the function of mRNAs that mediated by differentially expressed lncRNAs. RT-qPCR and western blot were conducted to detect the mRNA and protein level expression of C1QTNF1-AS1, miR-221-3p, SOCS3 and key proteins in JAK/STAT signaling pathway in HCC tissues and cells. The target miRNA of differentially expressed C1QTNF1-AS1 and SOCS3 was miR-221-3p predicted by bioinformatics analysis. C1QTNF1-AS1 and SOCS3 was downregulated and miR-221-3p was upregulated in HCC tissues and cells. In HepG2 and Huh-7 cells, the overexpression of C1QTNF1-AS1 or SOCS3, and silencing of miR-221-3p inhibited proliferation, migration, invasion and JAK/STAT signaling pathway, while promoted cell apoptosis. The results of dual-luciferase assay indicated that C1QTNF1-AS1 regulated miR-221-3p and miR-221-3p targeted SOCS3 by directly binding. And the growth of HCC in vivo was impeded when C1QTNF1-AS1 was upregulated. Overexpression of C1QTNF1-AS1 could downregulate miR-221-3p thereby inhibited the proliferation, migration and invasion of HCC cells.
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Affiliation(s)
- Weijie Han
- Department of Digestive Minimally Invasive Surgery, The Second Affiliated Hospital of Baotou Medical College, Baotou, 014030, Neimenggu, China
| | - Guofeng Yu
- General Surgery, Suzhou Integrative Traditional Chinese and Western Medicine Hospital, Suzhou, 215101, Jiangsu, China
| | - Xianmei Meng
- Department of Digestive Minimally Invasive Surgery, The Second Affiliated Hospital of Baotou Medical College, Baotou, 014030, Neimenggu, China
| | - Hong Hong
- Nursing Department, The Second Affiliated Hospital of Baotou Medical College, Baotou, 014030, Neimenggu, China
| | - Liansheng Zheng
- Department of Digestive Minimally Invasive Surgery, The Second Affiliated Hospital of Baotou Medical College, Baotou, 014030, Neimenggu, China
| | - Xiaobo Wu
- Department of Digestive Minimally Invasive Surgery, The Second Affiliated Hospital of Baotou Medical College, Baotou, 014030, Neimenggu, China
| | - Dongsheng Zhang
- Department of Digestive Minimally Invasive Surgery, The Second Affiliated Hospital of Baotou Medical College, Baotou, 014030, Neimenggu, China
| | - Boshi Yan
- Department of Digestive Minimally Invasive Surgery, The Second Affiliated Hospital of Baotou Medical College, Baotou, 014030, Neimenggu, China
| | - Yongqiang Ma
- Department of Digestive Minimally Invasive Surgery, The Second Affiliated Hospital of Baotou Medical College, Baotou, 014030, Neimenggu, China
| | - Xiaolong Li
- Department of Digestive Minimally Invasive Surgery, The Second Affiliated Hospital of Baotou Medical College, Baotou, 014030, Neimenggu, China
| | - Qiuhong Wang
- Department of Digestive Minimally Invasive Surgery, The Second Affiliated Hospital of Baotou Medical College, Baotou, 014030, Neimenggu, China.
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Expression profile analysis of long non-coding RNA in skeletal muscle of osteoporosis by microarray and bioinformatics. J Biol Eng 2019; 13:50. [PMID: 31164921 PMCID: PMC6544974 DOI: 10.1186/s13036-019-0180-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Accepted: 05/15/2019] [Indexed: 12/02/2022] Open
Abstract
Background Osteoporosis (OP) is a condition featured by bone mass loss and bone tissue microarchitectural alterations due to impaired tissue homeostasis favoring excessive bone resorption versus deposition. The trigger of such an impairment and the downstream molecular pathways involved are yet to be clarified. Long non-coding RNA (lncRNA) plays a role in gene transcription, protein expression and epigenetic regulation; and altered expression results in immune or metabolism related desease development. To determine whether lncRNAs are involved in osteoporosis, we analyzed the expression profile of lncRNAs and mRNAs in osteoporosis. Method Three pairs of osteoporosis patients (OP group) and healthy people controls (NC group) were screened by microarray. Quantitative polymerase chain reaction (qRT-PCR) was performed to confirm dysregulated lncRNA expressions in 5 pairs of OP and NC group tissues samples. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses were performed to construct the lncRNA-mRNA co-expression network. Result Through co-expression analysis, differently expressed transcripts were divided into modules, and lncRNAs were functionally annotated. We further analyzed the clinical significance of crucial lncRNAs from modules in public data. Finally, the expression of five lncRNAs, CUST_44695_PI430048170-GeneSymbol:CTA-384D8.35;CUST_39447_PI430048170,CUST_73298_PI430048170,CUST_108340_PI430048170,CUST_118927_PI430048170,this four lncRNAs have not been annotation genes and have not found GeneSymbols, and by quantitative RT-PCR, which may be associated with osteoporosis patients’ overall survival. Conclusion Analysis of this study revealed that dysregulated lncRNAs and mRNAs in osteoporosis patients and health people controls could affect the immune or metabolism system and musculoskeletal cell differentiation. The biological functions of those lncRNAs need to be further validated.
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Li H, Zhang B, Ding M, Lu S, Zhou H, Sun D, Wu G, Gan X. C1QTNF1-AS1 regulates the occurrence and development of hepatocellular carcinoma by regulating miR-221-3p/SOCS3. Hepatol Int 2019; 13:277-292. [PMID: 31069760 DOI: 10.1007/s12072-019-09944-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Accepted: 03/21/2019] [Indexed: 12/26/2022]
Abstract
BACKGROUND The aim of our study was to explore how C1QTNF1-AS1 regulated miR-221-3p/SOCS3 axis in human hepatocellular carcinoma (HCC). METHODS Differentially expressed lncRNAs and genes were examined via RNA-seq. GO analysis and KEGG pathway enrichment analysis were carried out based on the function of dys-regulated mRNAs. RT-qPCR was employed to detect the relative mRNA expression level of C1QTNF1-AS1, miR-221-3p, SOCS3 and key genes in the JAK/STAT signaling pathway in HCC tissues and cells, and western blot analysis was conducted to detect the relative protein expression levels of SOCS3 and key proteins in the JAK/STAT signaling pathway in HCC tissues and cells. MTT assay, transwell assay and flow cytometry were utilized to assess HCC cell proliferation, invasion, migration and apoptosis. Dual luciferase reporter gene assay was used to verify the targeted relationship between C1QTNF1-AS1 and miR-221-3p, as well as between miR-221-3p and SOCS3. A tumorigenicity assay in nude mice was conducted to investigate the effects of C1QTNF1-AS1 on HCC tumor growth in vivo. RESULTS C1QTNF1-AS1 and SOCS3 were down-regulated, while miR-221-3p was up-regulated in HCC tissues and cells. In HepG2 and Huh7 cells, overexpression of C1QTNF1-AS1 or SOCS3, as well as silence of miR-221-3p inhibited HCC cell proliferation, migration, and invasion and promoted HCC cell apoptosis. The results of the dual luciferase reporter gene assay indicated that miR-221-3p could directly target both C1QTNF1-AS1 and SOCS3. In addition, up-regulation of C1QTNF1-AS1 suppressed HCC tumor growth in vivo. CONCLUSION Overexpression of C1QTNF1-AS1 down-regulated miR-221-3p and subsequently up-regulated SOCS3, thereby inhibiting HCC cell proliferation, migration and invasion and promoting apoptosis through the JAK/STAT signaling pathway.
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Affiliation(s)
- Hang Li
- Department of Hepatobiliary and Pancreas Surgery, China-Japan Union Hospital, Jilin University, Changchun, 130033, Jilin, China
| | - Bo Zhang
- Department of Pediatric Neurology, The First Hospital of Jilin University, Changchun, 130021, Jilin, China
| | - Meng Ding
- Department of Endoscopy Center, China-Japan Union Hospital, Jilin University, Changchun, 130033, Jilin, China
| | - Shang Lu
- Department of Anesthesiology, China-Japan Union Hospital, Jilin University, Changchun, 130033, Jilin, China
| | - Hui Zhou
- Department of Hepatobiliary and Pancreas Surgery, China-Japan Union Hospital, Jilin University, Changchun, 130033, Jilin, China
| | - Dajun Sun
- Department of Vascular Surgery, China-Japan Union Hospital, Jilin University, No. 126 Xiantai Street, Changchun, 130033, Jilin, China.
| | - Gang Wu
- Department of Hepatobiliary Surgery, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, 610072, Sichuan, China
| | - Xianfeng Gan
- Department of Hepatobiliary Surgery, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, 610072, Sichuan, China
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Dong L, Li G, Li Y, Zhu Z. Upregulation of Long Noncoding RNA GAS5 Inhibits Lung Cancer Cell Proliferation and Metastasis via miR-205/PTEN Axis. Med Sci Monit 2019; 25:2311-2319. [PMID: 30926767 PMCID: PMC6452771 DOI: 10.12659/msm.912581] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Background Long noncoding RNA (lncRNA) is a key part of noncoding RNA class and increasing evidences have manifested that it plays a significant role in the physiology and pathology. The growth arrest-specific transcript 5 (GAS5) is a vital tumor suppressor in some types of cancers. However, the function of GAS5 in lung cancer remains largely no clear. The purpose of the current study was to identify the biological role of GAS5 in non-small cell lung cancer (NSCLC). Material/Methods To study the role of GAS5 in the NSCLC, the RT-PCR, Western Blot, Luciferase assay, and RNA immunoprecipitation assay was employed to determine the relationship of GAS5, miR-205, and PTEN. CCK8 assay, Cell migration and invasion assay was used for the role of GAS5 in lung cancer cell proliferation and metastasis. Results The results indicated that GAS5 was drastically downregulated in lung cancer cell lines. Further functional analysis showed that down-expression of GAS5 remarkably induced NSCLC growth, migration, and invasion. The luciferase reporter assays determined that miR-205 was a direct target of GAS5 in lung cancer. Moreover, the Phosphatase and tensin homologue (PTEN) was known as a direct target of miR-205 and miR-205/PTEN rescued the effects of GAS5 in NSCLC cells. Conclusions To sum up, our results illustrate that upregulation of GAS5 in NSCLC suppresses its growth, migration, and invasion via the miR-205/PTEN axis.
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Affiliation(s)
- Lizhen Dong
- Department of Clinical Laboratory, Tianjin Medical University General Hospital, Tianjin, China (mainland)
| | - Guangming Li
- Department of Pathogen Biology, Tianjin Medical University, Tianjin, China (mainland)
| | - Yongmei Li
- Department of Pathogen Biology, Tianjin Medical University, Tianjin, China (mainland)
| | - Ze Zhu
- Department of Pathogen Biology, Tianjin Medical University, Tianjin, China (mainland)
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Focus on Cdc42 in Breast Cancer: New Insights, Target Therapy Development and Non-Coding RNAs. Cells 2019; 8:cells8020146. [PMID: 30754684 PMCID: PMC6406589 DOI: 10.3390/cells8020146] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2018] [Revised: 01/30/2019] [Accepted: 02/08/2019] [Indexed: 12/25/2022] Open
Abstract
Breast cancer is the most common malignant tumors in females. Although the conventional treatment has demonstrated a certain effect, some limitations still exist. The Rho guanosine triphosphatase (GTPase) Cdc42 (Cell division control protein 42 homolog) is often upregulated by some cell surface receptors and oncogenes in breast cancer. Cdc42 switches from inactive guanosine diphosphate (GDP)-bound to active GTP-bound though guanine-nucleotide-exchange factors (GEFs), results in activation of signaling cascades that regulate various cellular processes such as cytoskeletal changes, proliferation and polarity establishment. Targeting Cdc42 also provides a strategy for precise breast cancer therapy. In addition, Cdc42 is a potential target for several types of non-coding RNAs including microRNAs and lncRNAs. These non-coding RNAs is extensively involved in Cdc42-induced tumor processes, while many of them are aberrantly expressed. Here, we focus on the role of Cdc42 in cell morphogenesis, proliferation, motility, angiogenesis and survival, introduce the Cdc42-targeted non-coding RNAs, as well as present current development of effective Cdc42-targeted inhibitors in breast cancer.
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Lu T, Wang Y, Chen D, Liu J, Jiao W. Potential clinical application of lncRNAs in non-small cell lung cancer. Onco Targets Ther 2018; 11:8045-8052. [PMID: 30519046 PMCID: PMC6239124 DOI: 10.2147/ott.s178431] [Citation(s) in RCA: 78] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Lung cancer has been identified as one of the most prevalent and deadly tumors worldwide. In recent years, lncRNAs have been demonstrated to play a significant role in the development of lung cancer. Specifically, lncRNAs act as a regulator of cancer-critical genes, and they regulate the biological behavior of tumors at the transcriptional and posttranscriptional levels. Recent studies have shown that lncRNAs possess great potential in the treatment of non-small cell lung cancer patients because of their roles in diverse cellular processes, such as proliferation, metastasis, stem cell maintenance, and epithelial to mesenchymal transition, and they serve as signaling biomarkers. Compared to other invasive diagnostic methods, detection of lncRNAs may become a very useful noninvasive methodology. Moreover, lncRNAs can serve as potential therapeutic targets in non-small cell lung cancer due to their roles in regulating many signaling pathways associated with lung carcinoma. In this review, we discuss the roles and expression profile of lncRNAs. We also discuss the promising application of lncRNAs as predictors of clinical diagnosis, prognosis, and as potential therapeutic targets, aiming to demonstrate their practical value for clinical treatment.
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Affiliation(s)
- Tong Lu
- Department of Thoracic Surgery, Affiliated Hospital of Qingdao University, Qingdao, China,
| | - Yuanyong Wang
- Department of Thoracic Surgery, Affiliated Hospital of Qingdao University, Qingdao, China,
| | - Di Chen
- Department of Gastroenterology, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Jia Liu
- School of Pharmacy, Qingdao University, Qingdao, China,
| | - Wenjie Jiao
- Department of Thoracic Surgery, Affiliated Hospital of Qingdao University, Qingdao, China,
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Xiao X, Zhu W, Liao B, Xu J, Gu C, Ji B, Yao Y, Peng L, Yang J. BPLLDA: Predicting lncRNA-Disease Associations Based on Simple Paths With Limited Lengths in a Heterogeneous Network. Front Genet 2018; 9:411. [PMID: 30459803 PMCID: PMC6232683 DOI: 10.3389/fgene.2018.00411] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2018] [Accepted: 09/05/2018] [Indexed: 12/31/2022] Open
Abstract
In recent years, it has been increasingly clear that long noncoding RNAs (lncRNAs) play critical roles in many biological processes associated with human diseases. Inferring potential lncRNA-disease associations is essential to reveal the secrets behind diseases, develop novel drugs, and optimize personalized treatments. However, biological experiments to validate lncRNA-disease associations are very time-consuming and costly. Thus, it is critical to develop effective computational models. In this study, we have proposed a method called BPLLDA to predict lncRNA-disease associations based on paths of fixed lengths in a heterogeneous lncRNA-disease association network. Specifically, BPLLDA first constructs a heterogeneous lncRNA-disease network by integrating the lncRNA-disease association network, the lncRNA functional similarity network, and the disease semantic similarity network. It then infers the probability of an lncRNA-disease association based on paths connecting them and their lengths in the network. Compared to existing methods, BPLLDA has a few advantages, including not demanding negative samples and the ability to predict associations related to novel lncRNAs or novel diseases. BPLLDA was applied to a canonical lncRNA-disease association database called LncRNADisease, together with two popular methods LRLSLDA and GrwLDA. The leave-one-out cross-validation areas under the receiver operating characteristic curve of BPLLDA are 0.87117, 0.82403, and 0.78528, respectively, for predicting overall associations, associations related to novel lncRNAs, and associations related to novel diseases, higher than those of the two compared methods. In addition, cervical cancer, glioma, and non-small-cell lung cancer were selected as case studies, for which the predicted top five lncRNA-disease associations were verified by recently published literature. In summary, BPLLDA exhibits good performances in predicting novel lncRNA-disease associations and associations related to novel lncRNAs and diseases. It may contribute to the understanding of lncRNA-associated diseases like certain cancers.
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Affiliation(s)
- Xiaofang Xiao
- College of Information Science and Engineering, Hunan University, Changsha, China
| | - Wen Zhu
- School of Mathematics and Statistics, Hainan Normal University, Haikou, China
| | - Bo Liao
- College of Information Science and Engineering, Hunan University, Changsha, China.,School of Mathematics and Statistics, Hainan Normal University, Haikou, China
| | - Junlin Xu
- College of Information Science and Engineering, Hunan University, Changsha, China
| | - Changlong Gu
- College of Information Science and Engineering, Hunan University, Changsha, China
| | - Binbin Ji
- School of Mathematics and Statistics, Hainan Normal University, Haikou, China
| | - Yuhua Yao
- School of Mathematics and Statistics, Hainan Normal University, Haikou, China
| | - Lihong Peng
- School of Computer Science, Hunan University of Technology, Zhuzhou, China
| | - Jialiang Yang
- School of Mathematics and Statistics, Hainan Normal University, Haikou, China.,Icahn Institute for Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai, New York, NY, United States
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Han BW, Ye H, Wei PP, He B, Han C, Chen ZH, Chen YQ, Wang WT. Global identification and characterization of lncRNAs that control inflammation in malignant cholangiocytes. BMC Genomics 2018; 19:735. [PMID: 30305026 PMCID: PMC6180422 DOI: 10.1186/s12864-018-5133-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Accepted: 09/28/2018] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Long noncoding RNAs (lncRNAs) are known to play important roles in different cell contexts, including cancers. However, little is known about lncRNAs in cholangiocarcinoma (CCA), a cholangiocyte malignancy with poor prognosis, and associated with chronic inflammation and damage to the biliary epithelium. This study determined whether lncRNAs were dysregulated and participated in disease diagnosis or pivotal inflammation pathways through a genome-wide lncRNA screening and functional analysis. RESULTS We firstly identified a large number of lncRNAs abnormally expressed between 9 pairs of cancerous and adjacent tissues of CCA, and between intra-hepatic CCA and extra-hepatic CCA through a genome-wide profiling. A set of aberrant differentially expressed lncRNAs were further validated in a training set (16 pairs) and a test set (11 pairs) of CCA patient samples. Following assessment of the diagnostic value of the 7 differentially expressed lncRNAs, we confirmed the optimal combination of H19, C3P1, AC005550.3, PVT1, and LPAL2 with area under the curve of 0.8828 [95% CI: 0.7441-1.021, P < 0.001], with 93.75% sensitivity and 81.25% specificity, at the cutoff point of - 0.2884 to distinguish the CCA tissue from the normal ones, suggesting that specific lncRNAs may have potential for detecting CCA. More importantly, the genome-wide locus and lncRNA/mRNA co-expression analyses revealed a set of lncRNAs that participated in inflammation and oxidative stress response pathways by regulating genes in cis or in trans. Finally, APOC1P1, PVT1, and LPAL2 were validated to regulate the migration and some pivotal inflammation genes under the CCA pathogenesis. CONCLUSIONS Our findings are the first to show that lncRNAs may not only be potential biomarkers of CCA progression but also respond to inflammation in CCA.
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Affiliation(s)
- Bo-Wei Han
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory for Biocontrol, Sun Yat-sen University, Guangzhou, 510275, People's Republic of China
| | - Hua Ye
- Department of Hepatobiliary, and Department of Anesthesiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, China
| | - Pan-Pan Wei
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory for Biocontrol, Sun Yat-sen University, Guangzhou, 510275, People's Republic of China
| | - Bo He
- Department of Hepatobiliary, and Department of Anesthesiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, China
| | - Cai Han
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory for Biocontrol, Sun Yat-sen University, Guangzhou, 510275, People's Republic of China
| | - Zhen-Hua Chen
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory for Biocontrol, Sun Yat-sen University, Guangzhou, 510275, People's Republic of China
| | - Yue-Qin Chen
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory for Biocontrol, Sun Yat-sen University, Guangzhou, 510275, People's Republic of China.
| | - Wen-Tao Wang
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory for Biocontrol, Sun Yat-sen University, Guangzhou, 510275, People's Republic of China.
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Non-coding RNA in drug resistance of hepatocellular carcinoma. Biosci Rep 2018; 38:BSR20180915. [PMID: 30224380 PMCID: PMC6177555 DOI: 10.1042/bsr20180915] [Citation(s) in RCA: 75] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Revised: 08/16/2018] [Accepted: 08/29/2018] [Indexed: 12/14/2022] Open
Abstract
Hepatocellular carcinoma (HCC) has been one of the most highly lethal cancers. The acquisition of drug resistance accounts for the majority of poor effects of chemotherapy in HCC. Non-coding RNAs (ncRNAs) including miRNAs, long ncRNAs (lncRNAs), and circular RNA (circRNA) have been well-documented to participate in cancer occurrence and progression. Recently, multiple studies have highlighted the key roles of ncRNAs in chemoresistance of HCC. In addition, accumulating evidence has demonstrated that they can serve as biomarkers in diagnosis, treatment, and prognosis of HCC. In this review, we first overviewed up-to-date findings regarding miRNA and lncRNA in drug resistance of HCC, then summarized specific mechanisms that they modulate chemoresistance of HCC, and finally discussed their potential clinical application in overcoming the obstacle of HCC chemoresistance in the future.
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Zhu L, Huang F, Wan T, Xu H, Zhao Q. Overexpression of long noncoding RNA LINC00882 is associated with poor prognosis in hepatocellular carcinoma. Onco Targets Ther 2018; 11:5209-5217. [PMID: 30271163 PMCID: PMC6145351 DOI: 10.2147/ott.s170825] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Introduction Hepatocellular carcinoma (HCC) is the third major cause of malignant tumor-related death worldwide because it is initially diagnosed in the advanced stage and its therapeutic outcomes are usually poor. Based on this, it is urgent to identify effective early diagnosis biomarkers and new therapeutic targets to promote HCC treatment. Long noncoding RNAs (lncRNAs) have been reported as promising biomarkers for tumor diagnosis and treatment. Materials and methods In this study, we profiled expression patterns and dysregulation of lncRNAs in HCC tissues by analyzing two datasets GSE55191 and GSE64631 from Gene Expression Omnibus database firstly, each of which contains expression profiles of 3 primary HCC tissues and 3 normal liver tissues, respectively. Results LncRNA 882 (LINC00882) is one of the lncRNAs that was significantly upregulated in HCC tissues compared with normal liver tissues. We verified the upregulation of LINC00882 in HCC by using two separate cohorts that contained 85 HCC tissues and paired adjacent noncancerous tissues and 86 HCC tissues and 89 independent noncancerous liver tissues, respectively. Discussion We found that upregulation of LINC00882 is correlated with poorer prognosis of HCC patients. In vitro cell experiments demonstrated that knockdown of LINC00882 inhibits proliferation, migration and invasion of HCC cell lines. Conclusion These results indicated that LINC00882 promotes HCC progression and could be a potential prognostic biomarker and therapeutic target for HCC.
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Affiliation(s)
- Lei Zhu
- Department of Hepatobiliary and Pancreatic Surgery, the Third Xiangya Hospital of Central South University, Changsha, Hunan 410013, People's Republic of China,
| | - Feizhou Huang
- Department of Hepatobiliary and Pancreatic Surgery, the Third Xiangya Hospital of Central South University, Changsha, Hunan 410013, People's Republic of China,
| | - Tao Wan
- Department of Hepatobiliary and Pancreatic Surgery, the Third Xiangya Hospital of Central South University, Changsha, Hunan 410013, People's Republic of China,
| | - Hongbo Xu
- Department of Hepatobiliary and Pancreatic Surgery, the Third Xiangya Hospital of Central South University, Changsha, Hunan 410013, People's Republic of China,
| | - Qian Zhao
- Department of Adult Stem Cells, Institute of Reproduction and Stem Cell Engineering, Central South University, Changsha, Hunan 410078, People's Republic of China, .,Institute of Transformation Medicine Affiliated to Hunan Yearth Biotechnology Co., Ltd., Changsha, Hunan 410200, People's Republic of China,
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A Novel Approach for Predicting Disease-lncRNA Associations Based on the Distance Correlation Set and Information of the miRNAs. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2018; 2018:6747453. [PMID: 30046354 PMCID: PMC6038663 DOI: 10.1155/2018/6747453] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Revised: 04/04/2018] [Accepted: 04/17/2018] [Indexed: 12/29/2022]
Abstract
Recently, accumulating laboratorial studies have indicated that plenty of long noncoding RNAs (lncRNAs) play important roles in various biological processes and are associated with many complex human diseases. Therefore, developing powerful computational models to predict correlation between lncRNAs and diseases based on heterogeneous biological datasets will be important. However, there are few approaches to calculating and analyzing lncRNA-disease associations on the basis of information about miRNAs. In this article, a new computational method based on distance correlation set is developed to predict lncRNA-disease associations (DCSLDA). Comparing with existing state-of-the-art methods, we found that the major novelty of DCSLDA lies in the introduction of lncRNA-miRNA-disease network and distance correlation set; thus DCSLDA can be applied to predict potential lncRNA-disease associations without requiring any known disease-lncRNA associations. Simulation results show that DCSLDA can significantly improve previous existing models with reliable AUC of 0.8517 in the leave-one-out cross-validation. Furthermore, while implementing DCSLDA to prioritize candidate lncRNAs for three important cancers, in the first 0.5% of forecast results, 17 predicted associations are verified by other independent studies and biological experimental studies. Hence, it is anticipated that DCSLDA could be a great addition to the biomedical research field.
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Hahne JC, Valeri N. Non-Coding RNAs and Resistance to Anticancer Drugs in Gastrointestinal Tumors. Front Oncol 2018; 8:226. [PMID: 29967761 PMCID: PMC6015885 DOI: 10.3389/fonc.2018.00226] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Accepted: 05/31/2018] [Indexed: 12/12/2022] Open
Abstract
Non-coding RNAs are important regulators of gene expression and transcription. It is well established that impaired non-coding RNA expression especially the one of long non-coding RNAs and microRNAs is involved in a number of pathological conditions including cancer. Non-coding RNAs are responsible for the development of resistance to anticancer treatments as they regulate drug resistance-related genes, affect intracellular drug concentrations, induce alternative signaling pathways, alter drug efficiency via blocking cell cycle regulation, and DNA damage response. Furthermore, they can prevent therapeutic-induced cell death and promote epithelial-mesenchymal transition (EMT) and elicit non-cell autonomous mechanisms of resistance. In this review, we summarize the role of non-coding RNAs for different mechanisms resulting in drug resistance (e.g., drug transport, drug metabolism, cell cycle regulation, regulation of apoptotic pathways, cancer stem cells, and EMT) in the context of gastrointestinal cancers.
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Affiliation(s)
- Jens C. Hahne
- Division of Molecular Pathology, The Institute of Cancer Research, London, United Kingdom
| | - Nicola Valeri
- Division of Molecular Pathology, The Institute of Cancer Research, London, United Kingdom
- Department of Medicine, The Royal Marsden NHS Trust, London, United Kingdom
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39
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Li H, Ma SQ, Huang J, Chen XP, Zhou HH. Roles of long noncoding RNAs in colorectal cancer metastasis. Oncotarget 2018; 8:39859-39876. [PMID: 28418892 PMCID: PMC5503659 DOI: 10.18632/oncotarget.16339] [Citation(s) in RCA: 70] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Accepted: 02/20/2017] [Indexed: 12/11/2022] Open
Abstract
Colorectal cancer (CRC) is the 3rd most common malignancies worldwide. Metastasis is responsible for more than 90% CRC patients' death. Long noncoding RNAs (lncRNAs) are an important class of transcribed RNA molecules greater than 200 nucleotides in length. With the development of whole genome sequencing technologies, they have been gained more attention. Accumulating evidences suggest that abnormal expression of lncRNAs in diverse diseases are involved in various biological functions such as proliferation, apoptosis, metastasis and differentiation by acting as epigenetic, splicing, transcriptional or post-transcriptional regulators. Aberrant expression of lncRNAs has also been found in CRC. Besides, recent studies have indicated that lncRNAs play important roles in tumourigenesis and cancer metastasis. They participate in the process of metastasis by activing or inhibiting the metastatic pathways. However, their functions on the development of cancer metastasis are poorly understood. In this review, we highlight the findings of roles for lncRNAs in CRC metastasis and review the metastatic pathways of lncRNAs leading to cancer metastasis in CRC, including escape of apoptosis, epithelial-mesenchymal transition (EMT), angiogenesis and invasion, migration and proliferation. Furthermore, we also discuss the potential clinical application of lncRNAs in CRC as diagnostic markers and therapeutic targets.
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Affiliation(s)
- He Li
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, P.R. China.,Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of Pharmacogenetics, Changsha, P.R. China
| | - Si-Qing Ma
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, P.R. China.,Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of Pharmacogenetics, Changsha, P.R. China
| | - Jin Huang
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, P.R. China.,Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of Pharmacogenetics, Changsha, P.R. China
| | - Xiao-Ping Chen
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, P.R. China.,Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of Pharmacogenetics, Changsha, P.R. China.,Hunan Province Cooperation Innovation Center for Molecular Target New Drug Study, Hengyang, P. R. China
| | - Hong-Hao Zhou
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, P.R. China.,Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of Pharmacogenetics, Changsha, P.R. China.,Hunan Province Cooperation Innovation Center for Molecular Target New Drug Study, Hengyang, P. R. China
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40
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Hu L, Tang J, Huang X, Zhang T, Feng X. Hypoxia exposure upregulates MALAT-1 and regulates the transcriptional activity of PTB-associated splicing factor in A549 lung adenocarcinoma cells. Oncol Lett 2018; 16:294-300. [PMID: 29928414 PMCID: PMC6006348 DOI: 10.3892/ol.2018.8637] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Accepted: 02/15/2018] [Indexed: 12/11/2022] Open
Abstract
Hypoxia has been reported to be a critical microenvironmental factor that induces cancer metastasis and proliferation in gastric, liver and hepatic cancers; however, the underlying mechanisms of this are largely unknown. Long noncoding RNAs (lncRNAs) have emerged as crucial factors of several aspects of tumor malignancy, including tumorigenesis, metastasis and chemoresistance. However, the potential association of lncRNAs with hypoxia-induced cancer malignancy remains to be determined. In the present study, the differential expression of lncRNAs following the induction of hypoxia in A549 lung adenocarcinoma cells was analyzed reverse transcription-quantitative polymerase chain reaction. It was identified that the lncRNA metastasis-associated lung adenocarcinoma transcript-1 (MALAT-1) was upregulated significantly by hypoxia in A549 cells. By considering its promotive effects on malignant tumor behaviors, in the present study, it was identified that upregulated MALAT-1 released the binding of PTB-associated splicing factor (PSF) to its target gene, GAGE6, and thus promoted proliferation, migration and invasion of A549 cells following hypoxia exposure. These results advance the overall understanding of the mechanism of hypoxia-induced lung cancer metastasis and may assist in the development of novel therapeutics.
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Affiliation(s)
- Ling Hu
- Department of Pathology, Chongqing Three Gorges Medical College, Chongqing 400000, P.R. China
| | - Jing Tang
- Department of Pathology, Chongqing Three Gorges Medical College, Chongqing 400000, P.R. China
| | - Xiaohuan Huang
- Department of Pathology, Chongqing Three Gorges Medical College, Chongqing 400000, P.R. China
| | - Tao Zhang
- Department of Pathology, Chongqing Three Gorges Medical College, Chongqing 400000, P.R. China
| | - Xiaoling Feng
- Department of Pathology, Chongqing Three Gorges Medical College, Chongqing 400000, P.R. China
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41
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Xiu YL, Sun KX, Chen X, Chen S, Zhao Y, Guo QG, Zong ZH. Upregulation of the lncRNA Meg3 induces autophagy to inhibit tumorigenesis and progression of epithelial ovarian carcinoma by regulating activity of ATG3. Oncotarget 2018; 8:31714-31725. [PMID: 28423647 PMCID: PMC5458242 DOI: 10.18632/oncotarget.15955] [Citation(s) in RCA: 81] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Accepted: 02/14/2017] [Indexed: 12/14/2022] Open
Abstract
Maternally expressed gene 3 (Meg3), a long non-coding RNA, has been reported to be associated with the pathogenesis of multiple malignancies. However, little is known regarding the role of Meg3 in epithelial ovarian cancer (EOC). In this study, we found that the expression of Meg3 was lower in epithelial ovarian carcinoma, and has potential to be considered as a biomarker for ovarian cancer. After transfecting the ovarian cancer cell lines OVCAR3 and A2780 with Meg3, phenotypic changes and autophagy-related molecules were examined. Upregulation of Meg3 inhibited cell proliferation, plate colony formation, induced cell cycle arrest in G2 phases, and promoted apoptosis. Observation of autophagosomes was performed by transmission electron microscopy. The expression levels of LC3-II, ATG3, LAMP1 were elevated, while SQSTM1/p62 expression declined. Upregulated expression of Meg3 also suppressed tumorigenesis in vivo in a xenograft mouse model through upregulating ATG3 expression. RIP (ribonucleoprotein immunoprecipitation) and RNA pull-down assays showed that Meg3 was co-immunoprecipitated with ATG3. In addition, Meg3 protected ATG3 mRNA from degradation following treatment with actinomycin D. Overall, our results suggest that the lncRNA Meg3 acts as a tumor suppressor in EOC by regulating ATG3 activity and inducing autophagy.
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Affiliation(s)
- Yin-Ling Xiu
- Department of Biochemistry and Molecular Biology, College of Basic Medicine, China Medical University, Shenyang 110122, China
| | - Kai-Xuan Sun
- Department of Biochemistry and Molecular Biology, College of Basic Medicine, China Medical University, Shenyang 110122, China
| | - Xi Chen
- Department of Biochemistry and Molecular Biology, College of Basic Medicine, China Medical University, Shenyang 110122, China
| | - Shuo Chen
- Department of Gynecology, The First Affiliated Hospital of China Medical University, Shenyang 110001, China
| | - Yang Zhao
- Department of Gynecology, The First Affiliated Hospital of China Medical University, Shenyang 110001, China
| | - Qing-Guo Guo
- Department of Biochemistry and Molecular Biology, College of Basic Medicine, China Medical University, Shenyang 110122, China
| | - Zhi-Hong Zong
- Department of Biochemistry and Molecular Biology, College of Basic Medicine, China Medical University, Shenyang 110122, China
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42
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Long non-coding RNAs: novel prognostic biomarkers for liver metastases in patients with early stage colorectal cancer. Oncotarget 2018; 7:50428-50436. [PMID: 27391432 PMCID: PMC5226593 DOI: 10.18632/oncotarget.10416] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2015] [Accepted: 06/12/2016] [Indexed: 12/15/2022] Open
Abstract
Liver metastasis is the primary cause of death for colorectal cancer (CRC) patients. To investigate the prognostic value of long non-coding RNAs (lncRNAs) on colorectal liver metastases, quantitative reverse-transcriptase PCR (quantitative RT-PCR) was performed on 15 lncRNAs in 51 stage IV CRC with liver metastases and 57 stage I/II CRC specimens. The expression levels of four lncRNAs (GAS5, H19, MEG3 and Yiya) were significantly different between liver metastases and primary tumors of stage IV CRC patients. Furthermore, the high expression levels of GAS5 and Yiya were significantly associated with future occurrence of liver metastases in early stage CRC patients. Kaplan-Meier analysis showed that the high expression levels of GAS5 or Yiya were correlated with poor prognosis of early stage CRC patients (p = 0.0206 and 0.0005 for GAS5 and Yiya, respectively). Yiya expression was proved to be an independent prognostic indicator of colorectal liver metastases in a multivariate analysis (relative risk = 10.7; p < 0.0001). Our study revealed that GAS5 and Yiya were promising prognostic biomarkers of liver metastases for early stage CRC patients.
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43
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Alteration of Epigenetic Regulation by Long Noncoding RNAs in Cancer. Int J Mol Sci 2018; 19:ijms19020570. [PMID: 29443889 PMCID: PMC5855792 DOI: 10.3390/ijms19020570] [Citation(s) in RCA: 112] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2017] [Revised: 02/13/2018] [Accepted: 02/13/2018] [Indexed: 02/06/2023] Open
Abstract
Long noncoding RNAs (lncRNAs) are important regulators of the epigenetic status of the human genome. Besides their participation to normal physiology, lncRNA expression and function have been already associated to many diseases, including cancer. By interacting with epigenetic regulators and by controlling chromatin topology, their misregulation may result in an aberrant regulation of gene expression that may contribute to tumorigenesis. Here, we review the functional role and mechanisms of action of lncRNAs implicated in the aberrant epigenetic regulation that has characterized cancer development and progression.
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44
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El Khodiry A, Afify M, El Tayebi HM. Behind the curtain of non-coding RNAs; long non-coding RNAs regulating hepatocarcinogenesis. World J Gastroenterol 2018; 24:549-572. [PMID: 29434445 PMCID: PMC5799857 DOI: 10.3748/wjg.v24.i5.549] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Revised: 01/17/2018] [Accepted: 01/23/2018] [Indexed: 02/06/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is one of the most common and aggressive cancers worldwide. HCC is the fifth common malignancy in the world and the second leading cause of cancer death in Asia. Long non-coding RNAs (lncRNAs) are RNAs with a length greater than 200 nucleotides that do not encode proteins. lncRNAs can regulate gene expression and protein synthesis in several ways by interacting with DNA, RNA and proteins in a sequence specific manner. They could regulate cellular and developmental processes through either gene inhibition or gene activation. Many studies have shown that dysregulation of lncRNAs is related to many human diseases such as cardiovascular diseases, genetic disorders, neurological diseases, immune mediated disorders and cancers. However, the study of lncRNAs is challenging as they are poorly conserved between species, their expression levels aren’t as high as that of mRNAs and have great interpatient variations. The study of lncRNAs expression in cancers have been a breakthrough as it unveils potential biomarkers and drug targets for cancer therapy and helps understand the mechanism of pathogenesis. This review discusses many long non-coding RNAs and their contribution in HCC, their role in development, metastasis, and prognosis of HCC and how to regulate and target these lncRNAs as a therapeutic tool in HCC treatment in the future.
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Affiliation(s)
- Aya El Khodiry
- Genetic Pharmacology Research Group, Clinical Pharmacy Unit, Department of Pharmacology and Toxicology, Faculty of Pharmacy and Biotechnology, German University in Cairo, Cairo 11835, Egypt
| | - Menna Afify
- Genetic Pharmacology Research Group, Clinical Pharmacy Unit, Department of Pharmacology and Toxicology, Faculty of Pharmacy and Biotechnology, German University in Cairo, Cairo 11835, Egypt
| | - Hend M El Tayebi
- Genetic Pharmacology Research Group, Clinical Pharmacy Unit, Department of Pharmacology and Toxicology, Faculty of Pharmacy and Biotechnology, German University in Cairo, Cairo 11835, Egypt
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45
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Li Y, Wang Z, Wang Y, Zhao Z, Zhang J, Lu J, Xu J, Li X. Identification and characterization of lncRNA mediated transcriptional dysregulation dictates lncRNA roles in glioblastoma. Oncotarget 2018; 7:45027-45041. [PMID: 26943771 PMCID: PMC5216703 DOI: 10.18632/oncotarget.7801] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Accepted: 01/27/2016] [Indexed: 12/11/2022] Open
Abstract
Long non-coding RNAs (lncRNAs) modulate gene expression, and lncRNA misregulation is associated with cancer. However, precise functional roles in biological and disease processes have been described for only a few lncRNAs. Identification of genome-wide lncRNA-mediated transcriptional dysregulations may improve cancer treatments. In the present study, we used a computational framework that combined lncRNA and gene expression profiles with transcription factor (TF)-target relationships to comprehensively identify dysregulatory lncRNA-TF-gene triplets. In glioblastoma (GBM), we found that most lncRNAs affect multiple targets and primarily affect TF activity in trans. Six different classes of lncRNA-mediated transcriptional dysregulations were identified, with most lncRNAs either enhancing or attenuating target gene expression. Functional analysis of lncRNAs via their dysregulated targets implicated lncRNA modulators in some hallmarks of cancer, providing a new way to predict lncRNA function. Finally, we identified several lncRNA-TF-gene triplets (including HOTAIR-MXI1-CD58/PRKCE and HOTAIR-ATF5-NCAM1) that are associated with glioblastoma prognosis. The integration of lncRNA modulators into transcriptional regulatory networks will further enhance our understanding of lncRNA functions in cancer.
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Affiliation(s)
- Yongsheng Li
- College of Bioinformatics Science and Technology and Bio-Pharmaceutical Key Laboratory of Heilongjiang Province, Harbin Medical University, Harbin 150081, China
| | - Zishan Wang
- College of Bioinformatics Science and Technology and Bio-Pharmaceutical Key Laboratory of Heilongjiang Province, Harbin Medical University, Harbin 150081, China
| | - Yuan Wang
- College of Bioinformatics Science and Technology and Bio-Pharmaceutical Key Laboratory of Heilongjiang Province, Harbin Medical University, Harbin 150081, China
| | - Zheng Zhao
- College of Bioinformatics Science and Technology and Bio-Pharmaceutical Key Laboratory of Heilongjiang Province, Harbin Medical University, Harbin 150081, China
| | - Jinwen Zhang
- College of Bioinformatics Science and Technology and Bio-Pharmaceutical Key Laboratory of Heilongjiang Province, Harbin Medical University, Harbin 150081, China
| | - Jianping Lu
- College of Bioinformatics Science and Technology and Bio-Pharmaceutical Key Laboratory of Heilongjiang Province, Harbin Medical University, Harbin 150081, China
| | - Juan Xu
- College of Bioinformatics Science and Technology and Bio-Pharmaceutical Key Laboratory of Heilongjiang Province, Harbin Medical University, Harbin 150081, China
| | - Xia Li
- College of Bioinformatics Science and Technology and Bio-Pharmaceutical Key Laboratory of Heilongjiang Province, Harbin Medical University, Harbin 150081, China
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Li Y, Cheng C. Long noncoding RNA NEAT1 promotes the metastasis of osteosarcoma via interaction with the G9a-DNMT1-Snail complex. Am J Cancer Res 2018; 8:81-90. [PMID: 29416922 PMCID: PMC5794723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Accepted: 12/08/2017] [Indexed: 06/08/2023] Open
Abstract
Osteosarcoma (OS) is the most common histological form of primary bone cancer. Long noncoding RNA nuclear enriched abundant transcript 1 (NEAT1) functions as an oncogene in some cancers. However, the functional role of NEAT1 in OS metastasis remains elusive. In the present study, we found that NEAT1 expression was significantly increased in OS tissues and cell lines. Overexpression of NEAT1 in OS tissues was correlated with higher clinical stage, distant metastasis and poorer prognosis. Loss- and gain-of-function assays showed that NEAT1 positively regulated metastasis in vitro and in vivo. In addition, ectopic expression of NEAT1 also induced epithelial-mesenchymal transition (EMT). Mechanistic studies revealed that NEAT1 epigenetically suppresses E-cadherin expression through association with G9a-DNMT1-Snail complex. Taken together, our study reveals a critical epigenetic mechanism underlying NEAT1-mediated metastasis.
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Affiliation(s)
- Yong Li
- Department of Orthopedics, Cangzhou Central HospitalCangzhou, China
| | - Cai Cheng
- Department of Orthopedics, Cangzhou Central HospitalCangzhou, China
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Ma J, Li T, Han X, Yuan H. Knockdown of LncRNA ANRIL suppresses cell proliferation, metastasis, and invasion via regulating miR-122-5p expression in hepatocellular carcinoma. J Cancer Res Clin Oncol 2017; 144:205-214. [PMID: 29127494 DOI: 10.1007/s00432-017-2543-y] [Citation(s) in RCA: 93] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Accepted: 11/07/2017] [Indexed: 01/17/2023]
Abstract
OBJECTIVE Previous studies reported that lncRNA antisense non-coding RNA in the INK4 locus (ANRIL) was upregulated in hepatocellular carcinoma (HCC) tissues and decreased expression of ANRIL could suppress cell proliferation, metastasis, and invasion and induce apoptosis of HCC cells. However, the molecular mechanism of ANRIL involved in HCC tumorigenesis is still unknown. METHODS The expressions of ANRIL and miR-122-5p in HCC tissues and cells were quantified by qRT-PCR. MTT assay, colony formation assay, wound healing assay, and transwell invasion assay were performed to evaluate cell growth, metastasis, and invasion, respectively. RNA immunoprecipitation (RIP) assay and luciferase reporter assay were performed to determine whether ANRIL could directly bind to miR-122-5p in HCC cells. Xenograft tumor experiment was conducted to confirm the biological role and underlying mechanism of ANRIL in vivo. RESULTS The results showed that ANRIL was upregulated and miR-122-5p was downregulated in HCC tissues and cells. ANRIL was negatively correlated with miR-122-5p expression in HCC tissues. Knockdown of ANRIL or miR-122-5p overexpression suppressed HCC cell viability, colony formation ability, metastasis, and invasion. ANRIL was demonstrated to directly bind to miR-122-5p and inhibit its expression. Forced expression of ANRIL abolished the inhibitory effect of miR-122-5p overexpression on HCC progression. In vivo experiment demonstrated that ANRIL knockdown impeded tumor growth in vivo and increased miR-122-5p expression. CONCLUSION Our finding suggested that knockdown of ANRIL suppressed cell proliferation, metastasis and invasion via regulating miR-122-5p expression in HCC, illustrating the underlying mechanism of the oncogenic role of ANRIL in HCC.
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Affiliation(s)
- Ji Ma
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Νo. 1 Jianshe East Road, Zhengzhou, 450052, Henan, People's Republic of China
| | - Tengfei Li
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Νo. 1 Jianshe East Road, Zhengzhou, 450052, Henan, People's Republic of China
| | - Xinwei Han
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Νo. 1 Jianshe East Road, Zhengzhou, 450052, Henan, People's Republic of China.
| | - Huifeng Yuan
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Νo. 1 Jianshe East Road, Zhengzhou, 450052, Henan, People's Republic of China
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Dong D, Mu Z, Wang W, Xin N, Song X, Shao Y, Zhao C. Prognostic value of long noncoding RNA ZFAS1 in various carcinomas: a meta-analysis. Oncotarget 2017; 8:84497-84505. [PMID: 29137442 PMCID: PMC5663614 DOI: 10.18632/oncotarget.21100] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2017] [Accepted: 08/28/2017] [Indexed: 12/24/2022] Open
Abstract
A number of studies have revealed that zinc finger antisense 1 (ZFAS1), a long noncoding RNA (lncRNA), is aberrantly regulated in various cancers, and high ZFAS1 expression is associated with poor prognosis and increased risk of lymph node metastasis (LNM). This meta-analysis was conducted to identify the potential value of ZFAS1 as a biomarker for cancer prognosis. We searched electronic database PubMed, Web of Science, and China Wanfang Data (up to June 1, 2017) to collect all relevant studies and explore the association of ZFAS1 expression with overall survival (OS) and LNM. The results showed that cancer patients with high ZFAS1 expression had a worse OS than those with low ZFAS1 expression (HR: 1.94, 95% confidence interval [CI]: 1.41–2.47, P < 0.001), and high ZFAS1 expression was significantly associated with LNM (OR: 2.60, 95% CI: 1.54–4.42, P < 0.001). Subgroup analysis revealed that high ZFAS1 expression was significantly related to high incidence of LNM in subgroups of sample size more than 88 (OR: 3.16, 95% CI: 2.06–4.86, P < 0.001), non-digestive system malignancies (OR: 4.05, 95% CI: 2.49–6.60, P < 0.001), and studies reported in 2017 (OR: 4.86, 95% CI: 2.67–8.84, P < 0.001) without significant heterogeneity. Further meta-regression by the covariates showed that tumor type, sample size, quality score, cut off value and publication year did not result in the inter-study heterogeneity. In conclusion, the present meta-analysis demonstrates that high ZFAS1 expression may potentially serve as a reliable biomarker for poor clinical outcome in various cancers.
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Affiliation(s)
- Dan Dong
- Department of Pathophysiology, College of Basic Medical Science, China Medical University, Shenyang, People's Republic of China
| | - Zhongyi Mu
- Department of Pathophysiology, College of Basic Medical Science, China Medical University, Shenyang, People's Republic of China.,Department of Urology, Cancer Hospital of China Medical University, Liaoning Cancer Hospital and Institute, Shenyang, People's Republic of China
| | - Wei Wang
- Department of Pathophysiology, College of Basic Medical Science, China Medical University, Shenyang, People's Republic of China
| | - Na Xin
- Department of Pathophysiology, College of Basic Medical Science, China Medical University, Shenyang, People's Republic of China
| | - Xiaowen Song
- Department of Pathophysiology, College of Basic Medical Science, China Medical University, Shenyang, People's Republic of China
| | - Yue Shao
- Department of Pathophysiology, College of Basic Medical Science, China Medical University, Shenyang, People's Republic of China
| | - Chenghai Zhao
- Department of Pathophysiology, College of Basic Medical Science, China Medical University, Shenyang, People's Republic of China
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49
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Yüksel Ş, Boylu Akyerli C, Cengiz Yakıcıer M. Angiogenesis, Invasion, and Metastasis Characteristics of Hepatocellular Carcinoma. J Gastrointest Cancer 2017; 48:256-259. [PMID: 28785955 DOI: 10.1007/s12029-017-9962-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Şirin Yüksel
- Department of Molecular Biology and Genetics, Faculty of Arts and Sciences, Acıbadem Mehmet Ali Aydınlar University, Istanbul, Turkey
| | - Cemaliye Boylu Akyerli
- Department of Medical Biology, School of Medicine, Acıbadem Mehmet Ali Aydınlar University, Istanbul, Turkey
| | - M Cengiz Yakıcıer
- Department of Molecular Biology and Genetics, Faculty of Arts and Sciences, Acıbadem Mehmet Ali Aydınlar University, Istanbul, Turkey.
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50
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Wu L, Zhang L, Zheng S. Role of the long non-coding RNA HOTAIR in hepatocellular carcinoma. Oncol Lett 2017; 14:1233-1239. [PMID: 28789338 PMCID: PMC5529952 DOI: 10.3892/ol.2017.6312] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Accepted: 02/23/2017] [Indexed: 02/07/2023] Open
Abstract
A number of recent studies have focused on the association between long non-coding RNAs (lncRNAs) and cancer. HOX transcript antisense RNA (HOTAIR), an lncRNA that functions as a transcriptional modulator, has been implicated in various fundamental biological activities. HOTAIR mediates the trimethylation of histone H3 at lysine 27 and the demethylation of histone H3 dimethyl Lys4 by recruiting the polycomb repressive complex 2 and the lysine-specific demethylase 1/co-repressor of RE1-silencing transcription factor (coREST)/REST complex to the target gene promoters, which leads to gene silencing. Overexpression of HOTAIR in hepatocellular carcinoma (HCC) is strongly associated with an unfavorable prognosis for patients with HCC. HOTAIR promotes the carcinogenic activity of HCC cells through the suppression of RNA binding motif protein 38, triggering the epithelial-mesenchymal transition, and by interacting with microRNAs that act as tumor suppressors. In the present review, the role of the lncRNA HOTAIR in HCC is examined. The potential use of HOTAIR as a biomarker to achieve more accurate prognostic predictions and as an effective therapeutic target for HCC is then discussed.
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Affiliation(s)
- Liming Wu
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, P.R. China.,Key Lab of Combined Multi-Organ Transplantation, Ministry of Public Health, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, P.R. China.,Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, P.R. China.,Jingning National Hospital of The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 323500, P.R. China
| | - Lele Zhang
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, P.R. China.,Key Lab of Combined Multi-Organ Transplantation, Ministry of Public Health, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, P.R. China.,Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, P.R. China
| | - Shusen Zheng
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, P.R. China.,Key Lab of Combined Multi-Organ Transplantation, Ministry of Public Health, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, P.R. China.,Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, P.R. China
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