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Elmasri RA, Rashwan AA, Gaber SH, Rostom MM, Karousi P, Yasser MB, Kontos CK, Youness RA. Puzzling out the role of MIAT LncRNA in hepatocellular carcinoma. Noncoding RNA Res 2024; 9:547-559. [PMID: 38515792 PMCID: PMC10955557 DOI: 10.1016/j.ncrna.2024.01.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Revised: 12/31/2023] [Accepted: 01/09/2024] [Indexed: 03/23/2024] Open
Abstract
A non-negligible part of our DNA has been proven to be transcribed into non-protein coding RNA and its intricate involvement in several physiological processes has been highly evidenced. The significant biological role of non-coding RNAs (ncRNAs), including long non-coding RNAs (lncRNAs) has been variously reported. In the current review, the authors highlight the multifaceted role of myocardial infarction-associated transcript (MIAT), a well-known lncRNA, in hepatocellular carcinoma (HCC). Since its discovery, MIAT has been described as a regulator of carcinogenesis in several malignant tumors and its overexpression predicts poor prognosis in most of them. At the molecular level, MIAT is closely linked to the initiation of metastasis, invasion, cellular migration, and proliferation, as evidenced by several in-vitro and in-vivo models. Thus, MIAT is considered a possible theranostic agent and therapeutic target in several malignancies. In this review, the authors provide a comprehensive overview of the underlying molecular mechanisms of MIAT in terms of its downstream target genes, interaction with other classes of ncRNAs, and potential clinical implications as a diagnostic and/or prognostic biomarker in HCC.
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Affiliation(s)
- Rawan Amr Elmasri
- Molecular Genetics Research Team (MGRT), Biology and Biochemistry Department, Faculty of Biotechnology, German International University (GIU), New Administrative Capital, 11835, Cairo, Egypt
| | - Alaa A. Rashwan
- Molecular Genetics Research Team (MGRT), Biology and Biochemistry Department, Faculty of Biotechnology, German International University (GIU), New Administrative Capital, 11835, Cairo, Egypt
- Biotechnology Graduate Program, School of Sciences and Engineering, The American University in Cairo (AUC), 11835, Cairo, Egypt
| | - Sarah Hany Gaber
- Molecular Genetics Research Team (MGRT), Biology and Biochemistry Department, Faculty of Biotechnology, German International University (GIU), New Administrative Capital, 11835, Cairo, Egypt
| | - Monica Mosaad Rostom
- Pharmacology and Toxicology Department, Faculty of Pharmacy and Biotechnology, German University in Cairo (GUC), 11835, Cairo, Egypt
| | - Paraskevi Karousi
- Department of Biochemistry and Molecular Biology, Faculty of Biology, National and Kapodistrian University of Athens, Panepistimiopolis, 15701, Athens, Greece
| | - Montaser Bellah Yasser
- Bioinformatics Group, Center for Informatics Sciences (CIS), School of Information Technology and Computer Science (ITCS), Nile University, Giza, Egypt
| | - Christos K. Kontos
- Department of Biochemistry and Molecular Biology, Faculty of Biology, National and Kapodistrian University of Athens, Panepistimiopolis, 15701, Athens, Greece
| | - Rana A. Youness
- Molecular Genetics Research Team (MGRT), Biology and Biochemistry Department, Faculty of Biotechnology, German International University (GIU), New Administrative Capital, 11835, Cairo, Egypt
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2
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Rashwan HH, Taher AM, Hassan HA, Awaji AA, Kiriacos CJ, Assal RA, Youness RA. Harnessing the supremacy of MEG3 LncRNA to defeat gastrointestinal malignancies. Pathol Res Pract 2024; 256:155223. [PMID: 38452587 DOI: 10.1016/j.prp.2024.155223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Revised: 02/16/2024] [Accepted: 02/21/2024] [Indexed: 03/09/2024]
Abstract
Evidence suggests that long non-coding RNAs (lncRNAs) play a pivotal role in the carcinogenesis and progression of various human malignancies including gastrointestinal malignancies. This comprehensive review reports the functions and mechanisms of the lncRNA maternally expressed gene 3 (MEG3) involved in gastrointestinal malignancies. It summarizes its roles in mediating the regulation of cellular proliferation, apoptosis, migration, invasiveness, epithelial-to-mesenchymal transition, and drug resistance in several gastrointestinal cancers such as colorectal cancer, gall bladder cancer, pancreatic cancer, gastric cancer, esophageal cancer, cholangiocarcinoma, gastrointestinal stromal tumors and most importantly, hepatocellular carcinoma. In addition, the authors briefly highlight its implicated mechanistic role and interactions with different non-coding RNAs and oncogenic signaling cascades. This review presents the rationale for developing non coding RNA-based anticancer therapy via harnessing the power of MEG3 in gastrointestinal malignancies.
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Affiliation(s)
- H H Rashwan
- Molecular Genetics and Biochemistry Department, Molecular Genetics Research Team (MGRT), Faculty of Biotechnology, German International University (GIU), Cairo 11835, Egypt; Bioinformatics Group, Center for Informatics Science (CIS), School of Information Technology and Computer Science (ITCS), Nile University, 12677, Giza, Egypt
| | - A M Taher
- Molecular Genetics and Biochemistry Department, Molecular Genetics Research Team (MGRT), Faculty of Biotechnology, German International University (GIU), Cairo 11835, Egypt
| | - H A Hassan
- Molecular Genetics and Biochemistry Department, Molecular Genetics Research Team (MGRT), Faculty of Biotechnology, German International University (GIU), Cairo 11835, Egypt
| | - A A Awaji
- Department of Biology, Faculty of Science, University College of Taymaa, University of Tabuk, Tabuk 71491, Saudi Arabia
| | - C J Kiriacos
- Molecular Genetics and Biochemistry Department, Molecular Genetics Research Team (MGRT), Faculty of Biotechnology, German International University (GIU), Cairo 11835, Egypt
| | - R A Assal
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Heliopolis University for Sustainable Development, Cairo, Egypt
| | - R A Youness
- Molecular Genetics and Biochemistry Department, Molecular Genetics Research Team (MGRT), Faculty of Biotechnology, German International University (GIU), Cairo 11835, Egypt.
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3
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El-Aziz MKA, Dawoud A, Kiriacos CJ, Fahmy SA, Hamdy NM, Youness RA. Decoding hepatocarcinogenesis from a noncoding RNAs perspective. J Cell Physiol 2023; 238:1982-2009. [PMID: 37450612 DOI: 10.1002/jcp.31076] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Revised: 06/11/2023] [Accepted: 06/19/2023] [Indexed: 07/18/2023]
Abstract
Being a leading lethal malignancy worldwide, the pathophysiology of hepatocellular carcinoma (HCC) has gained a lot of interest. Yet, underlying mechanistic basis of the liver tumorigenesis is poorly understood. The role of some coding genes and their respective translated proteins, then later on, some noncoding RNAs (ncRNAs) such as microRNAs have been extensively studied in context of HCC pathophysiology; however, the implication of long noncoding RNAs (lncRNAs) and circular RNAs (circRNAs) in HCC is indeed less investigated. As a subclass of the ncRNAs which has been elusive for long time ago, lncRNAs was found to be involved in plentiful cellular functions such as DNA, RNA, and proteins regulation. Hence, it is undisputed that lncRNAs dysregulation profoundly contributes to HCC via diverse etiologies. Accordingly, lncRNAs represent a hot research topic that requires prime focus in HCC. In this review, the authors discuss breakthrough discoveries involving lncRNAs and circRNAs dysregulation that have contributed to the contemporary concepts of HCC pathophysiology and how these concepts could be leveraged as potential novel diagnostic and prognostic HCC biomarkers. Further, this review article sheds light on future trends, thereby discussing the pathological roles of lncRNAs and circRNAs in HCC proliferation, migration, and epithelial-to-mesenchymal transition. Along this line of reasoning, future recommendations of how these targets could be exploited to achieve effective HCC-related drug development is highlighted.
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Affiliation(s)
- Mostafa K Abd El-Aziz
- Biochemistry Department, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut, Egypt
- Molecular Genetics Research Team (MGRT), Biology and Biochemistry Department, School of Life and Medical Sciences, University of Hertfordshire Hosted by Global Academic Foundation, Cairo, Egypt
| | - Alyaa Dawoud
- Molecular Genetics Research Team (MGRT), Pharmaceutical Biology Department, Faculty of Pharmacy and Biotechnology, German University in Cairo, Cairo, Egypt
| | - Caroline J Kiriacos
- Molecular Genetics Research Team (MGRT), Pharmaceutical Biology Department, Faculty of Pharmacy and Biotechnology, German University in Cairo, Cairo, Egypt
| | - Sherif Ashraf Fahmy
- Chemistry Department, School of Life and Medical Sciences, University of Hertfordshire Hosted by Global Academic Foundation, Cairo, Egypt
| | - Nadia M Hamdy
- Biochemistry Department, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Rana A Youness
- Molecular Genetics Research Team (MGRT), Biology and Biochemistry Department, School of Life and Medical Sciences, University of Hertfordshire Hosted by Global Academic Foundation, Cairo, Egypt
- Molecular Genetics Research Team (MGRT), Pharmaceutical Biology Department, Faculty of Pharmacy and Biotechnology, German University in Cairo, Cairo, Egypt
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4
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Lin X, Ding JM, Zheng XZ, Chen JG. Immunity-related long noncoding RNA WDFY3-AS2 inhibited cell proliferation and metastasis through Wnt/β-catenin signaling in oral squamous cell carcinoma. Arch Oral Biol 2023; 147:105625. [PMID: 36657277 DOI: 10.1016/j.archoralbio.2023.105625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Revised: 01/10/2023] [Accepted: 01/13/2023] [Indexed: 01/15/2023]
Abstract
OBJECTIVE Long noncoding RNA WDFY3-AS2 has been shown to play dual roles in the modulation of cancer progression. This study aimed at clarifying the biological role of WDFY3-AS2 as well as the association between WDFY3-AS2 expression, β-catenin expression, and OSCC immunity in oral squamous cell carcinoma (OSCC). DESIGN Bioinformatics analyses, CCK8, EdU, wound healing, transwell, RT-qPCR, western blot, immunofluorescence, in situ hybridization, and immunohistochemistry assays were adopted for exploring the role of WDFY3-AS2 in OSCC. RESULTS Bioinformatics analyses showed that WDFY3-AS2 conferred a poor prognosis for OSCC patients. Further analyses identified WDFY3-AS2 as an independent prognostic indicator for OSCC. Moreover, silencing WDFY3-AS2 inhibits OSCC cell proliferation, migration and invasion. Gene set enrichment analysis indicated that WDFY3-AS2 participated in the regulation of Wnt signaling. In addition, WDFY3-AS2 expression was positively associated with β-catenin mRNA levels, the key component of Wnt signaling. Interestingly, WDFY3-AS2 knockdown inhibited β-catenin expression and nuclear translocation, thus suppressing OSCC progression through Wnt signaling. Furthermore, WDFY3-AS2 expression correlated with an immunosuppressive phenotype in the tumor immune microenvironment. In situ hybridization and immunohistochemistry verified that WDFY3-AS2 was positively associated with total and nuclear β-catenin protein levels and negatively associated with CD4 expression. CONCLUSIONS This study demonstrates that the immunity-associated WDFY3-AS2 augments OSCC proliferation and metastasis through Wnt/β-catenin signaling and may serve as a novel treatment target and a new prognostic factor for OSCC.
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Affiliation(s)
- Xiang Lin
- Department of Radiation Oncology, Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital, Fuzhou 350014, Fujian, China.
| | - Jian-Ming Ding
- Department of Radiation Oncology, Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital, Fuzhou 350014, Fujian, China
| | - Xiong-Zhou Zheng
- Department of otorhinolaryngology, Xianyou County General Hospital, Xianyou 351200, Fujian, China
| | - Jian-Guang Chen
- Department of otorhinolaryngology, Xianyou County General Hospital, Xianyou 351200, Fujian, China.
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Upregulation of Centromere Proteins as Potential Biomarkers for Esophageal Squamous Cell Carcinoma Diagnosis and Prognosis. BIOMED RESEARCH INTERNATIONAL 2022; 2022:3758731. [PMID: 35496042 PMCID: PMC9046002 DOI: 10.1155/2022/3758731] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/02/2022] [Accepted: 03/28/2022] [Indexed: 12/24/2022]
Abstract
Esophageal squamous cell carcinoma (ESCC) has a high incidence and low survival rate, necessitating the identification of novel specific biomarkers. Centromere-associated proteins (CENPs) have been reported to be biomarkers for many cancers, but their roles in ESCC have seldom been investigated. Here, the potential clinical roles of CENPs in ESCC patients were demonstrated by a systematic bioinformatics analysis. Most CENP-encoding genes were differentially expressed between tumor and normal tissues. CENPA, CENPE, CENPF, CENPI, CENPM, CENPN, CENPQ, and CENPR were upregulated universally in the three datasets. Survival analysis demonstrated that high expression of CENPE and CENPQ was positively correlated with the outcomes of ESCC patients. The CENPE-based forecast model was more accurate than the tumor-node-metastasis (TNM) staging-based model, which was classified as stage I/II vs. III/IV. More importantly, the forecast model based on the commonly upregulated CENPs exhibited a much higher area under the curve (AUC) value (0.855) than the currently known TTL, ZNF750, AC016205.1, and BOLA3 biomarkers. The nomogram model integrating the CENPs, TNM stage, and sex was highly accurate in the prognosis of ESCC patients (
). Besides, gene set enrichment analysis (GSEA) demonstrated that CENPE expression is significantly correlated with cell cycle, G2/M checkpoint, mitotic spindle, p53, etc. Finally, in validation experiments, we also found that CENPE and CENPQ were significantly overexpressed in esophageal cancer cells. Taken together, these results clearly suggest that CENPs are clinically promising diagnostic and prognostic biomarkers for ESCC patients.
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Fang Y, Yang Y, Li N, Zhang XL, Huang HF. Emerging role of long noncoding RNAs in recurrent hepatocellular carcinoma. World J Clin Cases 2021; 9:9699-9710. [PMID: 34877309 PMCID: PMC8610931 DOI: 10.12998/wjcc.v9.i32.9699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Revised: 06/08/2021] [Accepted: 09/08/2021] [Indexed: 02/06/2023] Open
Abstract
Hepatocellular carcinoma (HCC) remains one of the most frequent types of liver cancer and is characterized by a high recurrence rate. Recent studies have proposed that long non-coding RNAs (lncRNAs) are potential biomarkers in several recurrent tumor types. It is now well understood that invasion, migration, and metastasis are important factors for tumor recurrence. Moreover, some of the known risk factors for HCC may affect the expression levels of several types of lncRNAs and thus affect the recurrence of liver cancer through lncRNA regulation. In this paper, we review the biological functions, molecular mechanisms, and roles of lncRNAs in HCC and summarize current knowledge about lncRNAs as potential biomarkers in recurrent HCC.
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Affiliation(s)
- Yuan Fang
- Organ Transplantation Center, The First Affiliated Hospital of Kunming Medical University, Kunming 650032, Yunnan Province, China
| | - Yang Yang
- Department of Otorhinolaryngology, The First Affiliated Hospital of Kunming Medical University, Kunming 650032, Yunnan Province, China
| | - Na Li
- Organ Transplantation Center, The First Affiliated Hospital of Kunming Medical University, Kunming 650032, Yunnan Province, China
| | - Xiao-Li Zhang
- Department of Gastrointestinal and Hernia Surgery, The First Affiliated Hospital of Kunming Medical University, Kunming 650032, Yunnan Province, China
| | - Han-Fei Huang
- Organ Transplantation Center, The First Affiliated Hospital of Kunming Medical University, Kunming 650032, Yunnan Province, China
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Xu BH, Jiang JH, Luo T, Jiang ZJ, Liu XY, Li LQ. Signature of prognostic epithelial-mesenchymal transition related long noncoding RNAs (ERLs) in hepatocellular carcinoma. Medicine (Baltimore) 2021; 100:e26762. [PMID: 34397721 PMCID: PMC8322489 DOI: 10.1097/md.0000000000026762] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Accepted: 07/04/2021] [Indexed: 01/04/2023] Open
Abstract
Reliable biomarkers are of great significance for the treatment and diagnosis of hepatocellular carcinoma (HCC). This study identified potential prognostic epithelial-mesenchymal transition related lncRNAs (ERLs) by the cancer genome atlas (TCGA) database and bioinformatics.The differential expression of long noncoding RNA (lncRNA) was obtained by analyzing the lncRNA data of 370 HCC samples in TCGA. Then, Pearson correlation analysis was carried out with EMT related genes (ERGs) from molecular signatures database. Combined with the univariate Cox expression analysis of the total survival rate of hepatocellular carcinoma (HCC) patients, the prognostic ERLs were obtained. Then use "step" function to select the optimal combination of constructing multivariate Cox expression model. The expression levels of ERLs in HCC samples were verified by real-time quantitative polymerase chain reaction.Finally, we identified 5 prognostic ERLs (AC023157.3, AC099850.3, AL031985.3, AL365203.2, CYTOR). The model showed that these prognostic markers were reliable independent predictors of risk factors (P value <.0001, hazard ratio [HR] = 2.400, 95% confidence interval [CI] = 1.667-3.454 for OS). In the time-dependent receiver operating characteristic analysis, this prognostic marker is a good predictor of HCC survival (area under the curve of 1 year, 2 years, 3 years, and 5 years are 0.754, 0.720, 0.704, and 0.662 respectively). We analyzed the correlation of clinical characteristics of these prognostic markers, and the results show that this prognostic marker is an independent factor that can predict the prognosis of HCC more accurately. In addition, by matching with the Molecular Signatures Database, we obtained 18 ERLs, and then constructed the HCC prognosis model and clinical feature correlation analysis using 5 prognostic ERLs. The results show that these prognostic markers have reliable independent predictive value. Bioinformatics analysis showed that these prognostic markers were involved in the regulation of EMT and related functions of tumor occurrence and migration.Five prognostic types of ERLs identified in this study can be used as potential biomarkers to predict the prognosis of HCC.
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Affiliation(s)
- Bang-Hao Xu
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Jing-Hang Jiang
- Department of Hepatobiliary Surgery, Jing Men NO.2 People's Hospital, Jingmen, Hubei, China
| | - Tao Luo
- Department of Hepatobiliary Surgery, Guangxi Medical University Affiliated Tumor Hospital, Nanning, Guangxi, China
| | - Zhi-Jun Jiang
- Department of Hepatobiliary Surgery, Guangxi Medical University Affiliated Tumor Hospital, Nanning, Guangxi, China
| | - Xin-Yu Liu
- Department of Hepatobiliary Surgery, Guangxi Medical University Affiliated Tumor Hospital, Nanning, Guangxi, China
| | - Le-Qun Li
- Department of Hepatobiliary Surgery, Guangxi Medical University Affiliated Tumor Hospital, Nanning, Guangxi, China
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8
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Tao C, Luo H, Chen L, Li J, Zhu X, Huang K. Identification of an epithelial-mesenchymal transition related long non-coding RNA (LncRNA) signature in Glioma. Bioengineered 2021; 12:4016-4031. [PMID: 34288803 PMCID: PMC8806607 DOI: 10.1080/21655979.2021.1951927] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Epithelial–mesenchymal transition (EMT)-related long non-coding RNAs (lncRNAs) may be exploited as potential therapeutic targets in gliomas. However, the prognostic value of EMT-related lncRNAs in gliomas is unclear. We obtained lncRNAs from The Cancer Genome Atlas and constructed EMT-related lncRNA co-expression networks to identify EMT-related lncRNAs. The Chinese Glioma Genome Atlas (CGGA) was used for validation. Gene set enrichment and principal component analyses were used for functional annotation. The EMT–lncRNA co-expression networks were constructed. A real-time quantitative polymerase chain reaction assay was performed to validate the bioinformatics results. A nine-EMT-related lncRNAs (HAR1A, LINC00641, LINC00900, MIR210HG, MIR22HG, PVT1, SLC25A21-AS1, SNAI3-AS1, and SNHG18) signature was identified in patients with glioma. Patients in the low-risk group had a longer overall survival (OS) than those in the high-risk group (P < 0.0001). Additionally, patients in the high-risk group showed no deletion of chromosomal arms 1p and/or 19q, isocitrate dehydrogenase wild type, and higher World Health Organization grade. Moreover, the signature was identified as an independent factor and was significantly associated with OS (P = 0.041, hazard ratio = 1.806). These findings were further validated using the CGGA dataset. The low- and high-risk groups showed different EMT statuses based on principal component analysis. To study the regulatory function of lncRNAs, a lncRNA-mediated ceRNA network was constructed, which showed that complex interactions of lncRNA–miRNA–mRNA may be a potential cause of EMT progression in gliomas. This study showed that the nine-EMT-related lncRNA signature has a prognostic value in gliomas.
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Affiliation(s)
- Chuming Tao
- Department of Neurosurgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China.,Scientific Research Center, East China Institute of Digital Medical Engineering, Shangrao, China
| | - Haitao Luo
- Department of Neurosurgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China.,Scientific Research Center, East China Institute of Digital Medical Engineering, Shangrao, China
| | - Luyue Chen
- Department of Neurosurgery, Zhongshan Hospital Xiamen University, Xiamen, China
| | - Jingying Li
- Department of Comprehensive Intensive Care Unit, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Xingen Zhu
- Department of Neurosurgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China.,Institute of Neuroscience, Nanchang University, Nanchang, China
| | - Kai Huang
- Department of Neurosurgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China.,Institute of Neuroscience, Nanchang University, Nanchang, China
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9
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Long Noncoding RNA WDFY3-AS2 Represses the Progression of Esophageal Cancer through miR-18a/PTEN Axis. JOURNAL OF ONCOLOGY 2021; 2021:9951010. [PMID: 34194502 PMCID: PMC8203383 DOI: 10.1155/2021/9951010] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Accepted: 05/20/2021] [Indexed: 12/14/2022]
Abstract
Background Understanding the role of lncRNAs in the development of human malignancies is necessary for the targeted therapy of malignant tumors, including esophageal cancer (EC). Nevertheless, the specific role and regulatory mechanism of lncRNA WDFY3-AS2 in EC are still unclear. Here, we examined the functional role and regulatory mechanism of WDFY3-AS2 in EC. Materials and Methods RT-qPCR assay was applied to measure the expression of WDFY3-AS2 and miR-18a in EC samples and cells. The luciferase reporter and RIP assays were used to check the relationship between WDFY3-AS2, miR-18a, and PTEN. Counting Clock Kit-8 (CCK-8) assay was carried out to detect cell viability, and transwell assays were used for measuring cell migration and invasion. Results Underexpression of WDFY3-AS2 was found in EC specimens and cells, which predicted a poor prognosis of EC patients. Reexpression of WDFY3-AS2 repressed the progression of EC via inhibiting cell proliferation, migration, and invasion. Additionally, WDFY3-AS2 was negatively correlated with miR-18a and positively with PTEN. Furthermore, we discovered that the expression of PTEN decreased by miR-18a mimic was rescued by WDFY3-AS2 overexpression. Conclusions WDFY3-AS2 modulates the expressional level of PTEN as a competitive endogenous RNA via sponging miR-18a in EC, which suggests that the WDFY3-AS2/miR-18a/PTEN pathway might be involved in the progression of EC.
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10
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Kou X, Zhu J, Xie X, Hao M, Zhao Y. Expression of lncRNA MSC-AS1 in hepatocellular carcinoma cell lines and its effect on proliferation, apoptosis, and migration. TURKISH JOURNAL OF GASTROENTEROLOGY 2021; 31:860-867. [PMID: 33625998 DOI: 10.5152/tjg.2020.19485] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND/AIMS This study aimed to explore the expression of long non-coding RNA MSC-AS1 in hepatocellular carcinoma (HCC) cells and its effect on the proliferation, migration, and apoptosis of HCC cells. MATERIALS AND METHODS The expression of MSC-AS1 in HCC cell lines BEL7402, SMMC7721, Huh7, HepG2, MHCC97-H, and normal hepatocyte line L02 was detected by reverse transcriptase polymerase chain reaction. The HCC cells were divided into blank, negative control (NC)-small interfering RNA (siRNA) (transfected with negative siRNA), and MSC-AS1 siRNA (transfected with MSC-AS1 siRNA) groups. Cell counting kit-8 and colony formation assays were used to determine the proliferation, and cell apoptosis, migration, and invasion were detected by flow cytometry, wound healing, and transwell assays, respectively. Western blot was used to detect the expression of related proteins. RESULTS The expression of MSC-AS1 in HCC cell lines was significantly higher than that in L02. In the MSC-AS1 siRNA group, the proliferation and colony formation of HCC cells were inhibited, whereas the apoptosis rate was significantly higher than that in the blank and NC-siRNA groups. The rate of wound healing and the number of invasion cells in the MSC-AS1 siRNA group were significantly lower than that in the blank and NC-siRNA groups. CONCLUSION MSC-AS1 was upregulated in HCC cells, and the downregulation of MSC-AS1 could inhibit cell proliferation, migration, and invasion and promote apoptosis of HCC cells.
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Affiliation(s)
- Xiaoni Kou
- Department of infectious diseases, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, China;Department of hepatopathy, Affiliated Hospital of Shaanxi University of Chinese Medicine Affiliated Hospital, Xi'an, Shaanxi Province, China
| | - Jiang Zhu
- Department of breast disease, The Tumor Hospital of Shaanxi, Shaanxi Province, China
| | - Xinke Xie
- Department of hepatopathy, Affiliated Hospital of Shaanxi University of Chinese Medicine Affiliated Hospital, Xi'an, Shaanxi Province, China
| | - Mingxia Hao
- Department of hepatopathy, Affiliated Hospital of Shaanxi University of Chinese Medicine Affiliated Hospital, Xi'an, Shaanxi Province, China
| | - Yingren Zhao
- Department of infectious diseases, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, China
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11
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Tian S, Tang M, Li J, Wang C, Liu W. Identification of long non-coding RNA signatures for squamous cell carcinomas and adenocarcinomas. Aging (Albany NY) 2020; 13:2459-2479. [PMID: 33318305 PMCID: PMC7880362 DOI: 10.18632/aging.202278] [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: 05/15/2020] [Accepted: 11/08/2020] [Indexed: 11/25/2022]
Abstract
Studies have demonstrated that both squamous cell carcinomas (SCCs) and adenocarcinomas (ACs) possess some common molecular characteristics. Evidence has accumulated to support the theory that long non-coding RNAs (lncRNAs) serve as novel biomarkers and therapeutic targets in complex diseases such as cancer. In this study, we aimed to identify pan lncRNA signatures that are common to squamous cell carcinomas or adenocarcinomas with different tissues of origin. With the aid of elastic-net regularized regression models, a 35-lncRNA pan discriminative signature and an 11-lncRNA pan prognostic signature were identified for squamous cell carcinomas, whereas a 6-lncRNA pan discriminative signature and a 5-lncRNA pan prognostic signature were identified for adenocarcinomas. Among them, many well-known cancer relevant genes such as MALAT1 and PVT1 were included. The identified pan lncRNA lists can help experimental biologists generate research hypotheses and adopt existing treatments for less prevalent cancers. Therefore, these signatures warrant further investigation.
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Affiliation(s)
- Suyan Tian
- Division of Clinical Research, First Hospital of Jilin University, Changchun 130021, Jilin, P.R. China
| | - Mingbo Tang
- Department of Thoracic Surgery, First Hospital of Jilin University, Changchun 130021, Jilin, China
| | - Jialin Li
- Department of Thoracic Surgery, First Hospital of Jilin University, Changchun 130021, Jilin, China
| | - Chi Wang
- Department of Internal Medicine, College of Medicine, University of Kentucky, Lexington, KY 40536, USA.,Markey Cancer Center, University of Kentucky, Lexington, KY 40536, USA
| | - Wei Liu
- Department of Thoracic Surgery, First Hospital of Jilin University, Changchun 130021, Jilin, China
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12
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Ghafouri-Fard S, Azimi T, Taheri M. Myocardial Infarction Associated Transcript (MIAT): Review of its impact in the tumorigenesis. Biomed Pharmacother 2020; 133:111040. [PMID: 33378948 DOI: 10.1016/j.biopha.2020.111040] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 11/09/2020] [Accepted: 11/16/2020] [Indexed: 12/22/2022] Open
Abstract
Myocardial Infarction Associated Transcript (MIAT) is a non-coding transcript which is located on chromosome 22q12.1. This lncRNA can regulate expression of genes at both transcriptional and post-transcriptional stages. It has been firstly recognized as a susceptibility locus for myocardial infarction. Subsequently, its role in the development of several human cancers has been acknowledged. Numerous researches have reported the impact of MIAT silencing on the reduction of cell viability, proliferation and invasion while enhancement of cellular senescence and apoptosis. Consistently, investigations in the xenograft models have verified MIAT role in the promotion of tumor growth. Numerous microRNAs such as miR-214, miR-22-3p, miR-520d-3p, miR-203a, miR-29a-3p, miR-141, miR-150, miR-302, miR-29, and miR-155-5p have functional interactions with this lncRNA. Moreover, dysregulation of MIAT has been associated with abnormal activity of numerous cancer-related signaling cascades such as Hippo, PI3K/Akt/c-Met and Wnt/β-catenin. In the current review, we explain the role of MIAT in the cancer evolution based on the outcomes of in vitro, in vivo and clinical studies.
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Affiliation(s)
- Soudeh Ghafouri-Fard
- Urogenital Stem Cell Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Tahereh Azimi
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Taheri
- Urology and Nephrology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Rodrigues de Bastos D, Nagai MA. In silico analyses identify lncRNAs: WDFY3-AS2, BDNF-AS and AFAP1-AS1 as potential prognostic factors for patients with triple-negative breast tumors. PLoS One 2020; 15:e0232284. [PMID: 32401758 PMCID: PMC7219740 DOI: 10.1371/journal.pone.0232284] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Accepted: 04/10/2020] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Long non-coding RNAs (lncRNAs) are characterized as having 200 nucleotides or more and not coding any protein, and several been identified as differentially expressed in several human malignancies, including breast cancer. METHODS Here, we evaluated lncRNAs differentially expressed in triple-negative breast cancer (TNBC) from a cDNA microarray data set obtained in a previous study from our group. Using in silico analyses in combination with a review of the current literature, we identify three lncRNAs as potential prognostic factors for TNBC patients. RESULTS We found that the expression of WDFY3-AS2, BDNF-AS, and AFAP1-AS1 was associated with poor survival in patients with TNBCs. WDFY3-AS2 and BDNF-AS are lncRNAs known to play an important role in tumor suppression of different types of cancer, while AFAP1-AS1 exerts oncogenic activity. CONCLUSION Our findings provided evidence that WDFY3-AS2, BDNF-AS, and AFAP1-AS1 may be potential prognostic factors in TNBC development.
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Affiliation(s)
- Daniel Rodrigues de Bastos
- Discipline of Oncology, Department of Radiology and Oncology, Faculty of Medicine, University of São Paulo, São Paulo, Brazil
- Laboratory of Molecular Genetics, Center for Translational Research in Oncology, Cancer Institute of São Paulo, São Paulo, Brazil
| | - Maria A. Nagai
- Discipline of Oncology, Department of Radiology and Oncology, Faculty of Medicine, University of São Paulo, São Paulo, Brazil
- Laboratory of Molecular Genetics, Center for Translational Research in Oncology, Cancer Institute of São Paulo, São Paulo, Brazil
- * E-mail:
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Huang Y, Wang Y, Wang X, Lin L, Wang P, Sun J, Jiang L. The Effects of the Transforming Growth Factor-β1 (TGF-β1) Signaling Pathway on Cell Proliferation and Cell Migration are Mediated by Ubiquitin Specific Protease 4 (USP4) in Hypertrophic Scar Tissue and Primary Fibroblast Cultures. Med Sci Monit 2020; 26:e920736. [PMID: 32308208 PMCID: PMC7191961 DOI: 10.12659/msm.920736] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Hypertrophic scar results from an abnormal repair response to trauma in the skin and involves fibroblasts proliferation with increased collagen deposition. Transforming growth factor-ß1 (TGF-ß1) and TGF-ß receptor type I (TGF-ßR1) are involved in tissue repair and are increased by ubiquitin-specific protease 4 (USP4). This study aimed to investigate the effects of TGF-ßR1 and USP4 in human tissue samples of hypertrophic scar and on cell proliferation and cell migration in primary fibroblast cultures in vitro. MATERIAL AND METHODS Skin excision tissue samples with adjacent normal skin were obtained from 15 patients with hypertrophic scar, which provided tissue sections and primary fibroblast culture for analysis. Immunohistochemistry detected the expression of USP4 and TGF-ßR1 in tissue sections. MicroRNA (miRNAs) expression levels were measured by quantitative real-time polymerase chain reaction (qRT-PCR). Western blot was performed to measure protein expression levels. Cultured skin fibroblasts were investigated using immunofluorescence staining. Fibroblast proliferation, apoptosis, and migration were measured with the Cell Counting Kit-8 (CCK-8) assay, flow cytometry, and a wound-healing assay, respectively. RESULTS The expression of USP4 and TGF-ßR1 in hypertrophic scar were increased compared with normal skin. Fibroblasts cultured from hypertrophic scar tissue showed increased expression of of USP4 and TGF-ßR1. Fibroblast transfection with USP4 short-interfering RNA (siRNA) resulted in reduced fibroblast proliferation and migration, and increased apoptosis. Downregulation of USP4 inhibited the expression of TGF-ßR1 protein and increased the expression levels of Smad7 protein. CONCLUSIONS USP4 regulated the proliferation, migration, and apoptosis of hypertrophic scar fibroblasts by regulating the TGF-ß1 signaling pathway.
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Affiliation(s)
- Yong Huang
- Department of Plastic and Aesthetic Surgery, Yantai Yuhuangding Hospital, Yantai, Shandong, China (mainland)
| | - Yuting Wang
- Department of Plastic and Aesthetic Surgery, Yantai Yuhuangding Hospital, Yantai, Shandong, China (mainland)
| | - Xueming Wang
- Department of Plastic and Aesthetic Surgery, Yantai Yuhuangding Hospital, Yantai, Shandong, China (mainland)
| | - Lixin Lin
- Department of Plastic and Aesthetic Surgery, Yantai Yuhuangding Hospital, Yantai, Shandong, China (mainland)
| | - Peng Wang
- Department of Plastic and Aesthetic Surgery, Yantai Yuhuangding Hospital, Yantai, Shandong, China (mainland)
| | - Junjun Sun
- Department of Plastic and Aesthetic Surgery, Yantai Yuhuangding Hospital, Yantai, Shandong, China (mainland)
| | - Lei Jiang
- Department of Plastic and Aesthetic Surgery, Yantai Yuhuangding Hospital, Yantai, Shandong, China (mainland)
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Ren P, Hong X, Chang L, Xing L, Zhang H. USF1-induced overexpression of long noncoding RNA WDFY3-AS2 promotes lung adenocarcinoma progression via targeting miR-491-5p/ZNF703 axis. Mol Carcinog 2020; 59:875-885. [PMID: 32275336 DOI: 10.1002/mc.23181] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 02/20/2020] [Accepted: 03/02/2020] [Indexed: 12/13/2022]
Abstract
Lung adenocarcinoma (LUAD) is one of the most common diagnosed pathological categories of lung cancer. Long noncoding RNAs (lncRNAs) have been manifested to be key regulators in modulating multiple cancers. Nevertheless, the pathologic role of lncRNA WDFY3-AS2 in LUAD remains elusive. The relative messenger RNA and protein levels were assessed by quantitative reverse transcription-polymerase chain reaction and Western blot analyses, respectively. Colony formation, carboxyfluorescein succinimidyl ester, terminal deoxynucleotidyl transferase dUTP nick-end labeling, wound-healing, and transwell invasion assays were performed to study the underlying role of WDFY3-AS2 in LUAD. Luciferase reporter assay, chromatin immunoprecipitation, RNA pull down, and RNA immunoprecipitation assays were conducted to probe into the interactions between relevant genes. WDFY3-AS2 expression was elevated in LUAD and WDFY3-AS2 transcription was activated by transcription factor USF1. Silencing WDFY3-AS2 could suppress cell proliferation, migration, and invasion, whereas accelerate cell apoptosis in LUAD. Molecular mechanism assays revealed that WDFY3-AS2 could bind to miR-491-5p and miR-491-5p inhibition could reverse the inhibitory effect of WDFY3-AS2 silence on LUAD progression. Besides, zinc finger protein 703 (ZNF703) was identified as a downstream target of miR-491-5p and its expression could be upregulated by WDFY3-AS2. Further, rescue assays uncovered that ZNF703 overexpression could restore the suppressive influence of silenced WDFY3-AS2 on LUAD development. USF1-acitvated WDFY3-AS2 promotes LUAD progression via targeting miR-491-5p/ZNF703 axis, suggesting the potential value of WDFY3-AS2 as a novel target for LUAD treatment.
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Affiliation(s)
- Ping Ren
- Department of Thoracic Surgery, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Xiaodong Hong
- Department of Thoracic Surgery, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Liang Chang
- Department of Thoracic Surgery, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Lei Xing
- Department of Thoracic Surgery, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Hong Zhang
- Department of Thoracic Surgery, The First Hospital of Jilin University, Changchun, Jilin, China
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Zhou S, Xu A, Song T, Gao F, Sun H, Kong X. lncRNA MIAT Regulates Cell Growth, Migration, and Invasion Through Sponging miR-150-5p in Ovarian Cancer. Cancer Biother Radiopharm 2020; 35:650-660. [PMID: 32186927 DOI: 10.1089/cbr.2019.3259] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Background: MIAT (myocardial infarction-associated transcript) regulates cell proliferation, apoptosis, and metastasis in several cancers. In this study, the authors aimed to explore the role of MIAT in ovarian cancer. Materials and Methods: The expression of MIAT in ovarian cancer subtypes, normal human ovarian surface epithelial and ovarian cancer cell lines was measured by qualitative real-time polymerase chain reaction (qRT-PCR). OVCAR3 and SKOV3 cells were transfected with MIAT overexpression plasmid or siMIAT. The cell growth ability was then evaluated by CCK-8 and colony formation assays. The cell migration and invasion rate were separately measured by wound-healing and transwell assays. The levels of epithelial-mesenchymal transition (EMT)-associated markers were evaluated by Western blotting. MIAT sponging miR-150-5p was predicted by starBase and confirmed by dual-luciferase reporter assays. The expression of miR-150-5p in OVCAR3 and SKOV3 cells with MIAT overexpression or knockdown, and in ovarian cancer subtypes was also measured by qRT-PCR. Further analyses confirmed the role of MIAT sponging miR-150-5p in ovarian cancer cells. Results: MIAT was highly expressed in mesenchymal subtype ovarian cancer tissues and ovarian cancer cells. In OVCAR3 and SKOV3 cells, overexpression of MIAT promoted, and knockdown of MIAT suppressed the cell growth, migration, invasion, and EMT. miR-150-5p was sponged and regulated by MIAT. miR-150-5p was downregulated in mesenchymal subtype ovarian cancer. Suppression of cell migration, invasion, and EMT caused by miR-150-5p overexpression was rescued by MIAT overexpression. Conclusions: MIAT acts as an oncogene in ovarian cancer cells through sponging miR-150-5p. MIAT or miR-150-5p expression might be a potential prognostic biomarker for ovarian cancer patients. MIAT and miR-150-5p are potential therapeutic targets in treatment of ovarian cancer.
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Affiliation(s)
- Suiyang Zhou
- Department of Gynaecology and Obstetrics, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Aili Xu
- Department of Gynaecology and Obstetrics, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Tiefang Song
- Department of Gynaecology and Obstetrics, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Fei Gao
- Department of Gynaecology and Obstetrics, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Haizhu Sun
- Department of Gynaecology and Obstetrics, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Xianchao Kong
- Department of Gynaecology and Obstetrics, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
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Yang Z, Bian E, Xu Y, Ji X, Tang F, Ma C, Wang H, Zhao B. Meg3 Induces EMT and Invasion of Glioma Cells via Autophagy. Onco Targets Ther 2020; 13:989-1000. [PMID: 32099402 PMCID: PMC6999788 DOI: 10.2147/ott.s239648] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Accepted: 01/08/2020] [Indexed: 12/16/2022] Open
Abstract
Background Glioma is one of the most common malignant tumors. Glioblastoma (grade IV) is considered the most malignant form of human brain tumors. Maternal expression gene 3 (Meg3) encodes a non-coding RNA (ncRNA) that plays an important role in the development and progression of cancer. However, the role of Meg3 in glioma cells remains largely unclear. Methods Reverse transcription-quantitative (RT-q) PCR was conducted to evaluate the mRNA expression related to cell autophagy and EMT while protein expression was detected by Western blotting. Staining of acidic vacuoles and immunofluorescence staining were used to detect autophagy. The ability of cells to migrate and invade was detected by Transwell migration and invasion assays. Results In the present study, it was found that the overexpression of Meg3 induced EMT, migration and invasion of glioma cells, whereas Meg3 overexpression induced autophagy of glioma cells. More importantly, the inhibition of autophagy impaired the EMT of glioma cells. In addition, Meg3-induced EMT, migration and invasion could be partially reversed by autophagy inhibitors, chloroquine (CQ) and Lys05, in glioma cells. Conclusion All data suggest that Meg3 induces EMT and invasion of glioma cells via autophagy. Overall, the findings of the present study demonstrate the importance of Meg3 in the molecular etiology of glioma, which also indicate its potential applications in the treatment of glioma.
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Affiliation(s)
- Zhihao Yang
- Department of Neurosurgery, The Second Affiliated Hospital of Anhui Medical University, Hefei 230601, People's Republic of China.,Cerebral Vascular Disease Research Center, Anhui Medical University, Hefei 230601, People's Republic of China
| | - Erbao Bian
- Department of Neurosurgery, The Second Affiliated Hospital of Anhui Medical University, Hefei 230601, People's Republic of China.,Cerebral Vascular Disease Research Center, Anhui Medical University, Hefei 230601, People's Republic of China
| | - Yadi Xu
- Department of Neurosurgery, The Second Affiliated Hospital of Anhui Medical University, Hefei 230601, People's Republic of China.,Cerebral Vascular Disease Research Center, Anhui Medical University, Hefei 230601, People's Republic of China
| | - Xinghu Ji
- Department of Neurosurgery, The Second Affiliated Hospital of Anhui Medical University, Hefei 230601, People's Republic of China.,Cerebral Vascular Disease Research Center, Anhui Medical University, Hefei 230601, People's Republic of China
| | - Feng Tang
- Department of Neurosurgery, The Second Affiliated Hospital of Anhui Medical University, Hefei 230601, People's Republic of China.,Cerebral Vascular Disease Research Center, Anhui Medical University, Hefei 230601, People's Republic of China
| | - Chunchun Ma
- Department of Neurosurgery, The Second Affiliated Hospital of Anhui Medical University, Hefei 230601, People's Republic of China.,Cerebral Vascular Disease Research Center, Anhui Medical University, Hefei 230601, People's Republic of China
| | - Hongliang Wang
- Department of Neurosurgery, The Second Affiliated Hospital of Anhui Medical University, Hefei 230601, People's Republic of China.,Cerebral Vascular Disease Research Center, Anhui Medical University, Hefei 230601, People's Republic of China
| | - Bing Zhao
- Department of Neurosurgery, The Second Affiliated Hospital of Anhui Medical University, Hefei 230601, People's Republic of China.,Cerebral Vascular Disease Research Center, Anhui Medical University, Hefei 230601, People's Republic of China
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AL-Eitan LN, Alghamdi MA, Tarkhan AH, Al-Qarqaz FA. Genome-Wide Tiling Array Analysis of HPV-Induced Warts Reveals Aberrant Methylation of Protein-Coding and Non-Coding Regions. Genes (Basel) 2019; 11:E34. [PMID: 31892232 PMCID: PMC7017144 DOI: 10.3390/genes11010034] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 12/18/2019] [Accepted: 12/22/2019] [Indexed: 12/18/2022] Open
Abstract
The human papillomaviruses (HPV) are a group of double-stranded DNA viruses that exhibit an exclusive tropism for squamous epithelia. HPV can either be low- or high-risk depending on its ability to cause benign lesions or cancer, respectively. Unsurprisingly, the majority of epigenetic research has focused on the high-risk HPV types, neglecting the low-risk types in the process. Therefore, the main objective of this study is to better understand the epigenetics of wart formation by investigating the differences in methylation between HPV-induced cutaneous warts and normal skin. A number of clear and very significant differences in methylation patterns were found between cutaneous warts and normal skin. Around 55% of the top-ranking 100 differentially methylated genes in warts were protein coding, including the EXOC4, KCNU, RTN1, LGI1, IRF2, and NRG1 genes. Additionally, non-coding RNA genes, such as the AZIN1-AS1, LINC02008, and MGC27382 genes, constituted 11% of the top-ranking 100 differentially methylated genes. Warts exhibited a unique pattern of methylation that is a possible explanation for their transient nature. Since the genetics of cutaneous wart formation are not completely known, the findings of the present study could contribute to a better understanding of how HPV infection modulates host methylation to give rise to warts in the skin.
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Affiliation(s)
- Laith N. AL-Eitan
- Department of Applied Biological Sciences, Jordan University of Science and Technology, Irbid 22110, Jordan;
- Department of Biotechnology and Genetic Engineering, Jordan University of Science and Technology, Irbid 22110, Jordan
| | - Mansour A. Alghamdi
- Department of Anatomy, College of Medicine, King Khalid University, Abha 61421, Saudi Arabia;
| | - Amneh H. Tarkhan
- Department of Applied Biological Sciences, Jordan University of Science and Technology, Irbid 22110, Jordan;
| | - Firas A. Al-Qarqaz
- Department of Internal Medicine, Jordan University of Science and Technology, Irbid 22110, Jordan;
- Division of Dermatology, Department of Internal Medicine, King Abdullah University Hospital, Jordan University of Science and Technology, Irbid 22110, Jordan
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Candidate lncRNA–miRNA–mRNA network in predicting hepatocarcinogenesis with cirrhosis: an integrated bioinformatics analysis. J Cancer Res Clin Oncol 2019; 146:87-96. [DOI: 10.1007/s00432-019-03090-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2019] [Accepted: 11/15/2019] [Indexed: 01/08/2023]
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20
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Li W, Ma S, Bai X, Pan W, Ai L, Tan W. Long noncoding RNA WDFY3-AS2 suppresses tumor progression by acting as a competing endogenous RNA of microRNA-18a in ovarian cancer. J Cell Physiol 2019; 235:1141-1154. [PMID: 31347170 DOI: 10.1002/jcp.29028] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Accepted: 05/14/2019] [Indexed: 01/01/2023]
Abstract
Ovarian cancer (OC) is a fatal cancer in women, mainly due to its aggressive nature and poor survival rate. The lncRNA-miRNA-mRNA (long noncoding RNA-microRNA-messenger RNA) interaction is promising biomarkers for the improving prognosis of OC. Therefore, we explored the regulatory mechanism of WDFY3-AS2/miR-18a/RORA axis involved in the biological activities of OC cells. Microarray analysis predicted differentially expressed lncRNA, miRNA, and mRNA related to OC, followed by investigating the relationship among them. The expression patterns of the identified lncRNA WDFY3-AS2, miR-18a, and RORA were measured in OC tissue and cells. Gain- and loss-of-function experiments were performed to characterize the effect of lncRNA WDFY3-AS2 on OC cells, as well as the involvement of miR-18a and RAR related orphan receptor A (RORA). The in vitro assays were validated by in vivo experiments. According to bioinformatics analysis, WDFY3-AS2 was speculated to affect OC by sponging miR-18a and modulating RORA. WDFY3-AS2 and RORA were underexpressed in OC, while miR-18a was highly expressed. Notably, WDFY3-AS2 acts as a competing endogenous RNA to sponge miR-18a and upregulate RORA. Upon overexpressing WDFY3-AS2 or inhibiting miR-18a, RORA expression was increased, thereby the OC cell proliferation, migration, invasion, and epithelial-to-mesenchymal transition (EMT) were suppressed, accompanied by enhanced apoptosis. In vivo experiments confirmed that the tumor growth was reduced in response to overexpressed WDFY3-AS2 or inhibited miR-18a. Taken together, the lncRNA WDFY3-AS2/miR-18a axis regulates the tumor progression of OC by targeting RORA, providing new insights for prevention and control of OC.
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Affiliation(s)
- Weijia Li
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Harbin Medical University, Harbin, People's Republic of China
| | - Shihong Ma
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Harbin Medical University, Harbin, People's Republic of China
| | - Xiaoxu Bai
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Harbin Medical University, Harbin, People's Republic of China
| | - Wenjing Pan
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Harbin Medical University, Harbin, People's Republic of China
| | - Limin Ai
- Station Health Team, Troop, People's Republic of China
| | - Wenhua Tan
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Harbin Medical University, Harbin, People's Republic of China
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LOXL1-AS1 predicts poor prognosis and promotes cell proliferation, migration, and invasion in osteosarcoma. Biosci Rep 2019; 39:BSR20190447. [PMID: 30944201 PMCID: PMC6488861 DOI: 10.1042/bsr20190447] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 03/27/2019] [Accepted: 03/31/2019] [Indexed: 12/20/2022] Open
Abstract
lncRNA LOXL1 antisense RNA 1 (lncRNA LOXL1-AS1) was recently found to function as oncogenic lncRNA in glioblastoma, prostate cancer, and medulloblastoma. The role of LOXL1-AS1 in osteosarcoma was still unknown. In our study, we found LOXL1-AS1 expression levels were higher in osteosarcoma tissues and cell lines than normal bone tissues and normal osteoblast cell line, respectively. Moreover, high-expression of LOXL1-AS1 was correlated with Enneking stage, tumor size, distant metastasis, histological grade, and overall survival time in osteosarcoma patients. Furthermore, LOXL1-AS1 overexpression acted as an independent poor predictor for overall survival in osteosarcoma patients. The loss-of-function studies showed knockdown of LOXL1-AS1 dramatically inhibited osteosarcoma cell proliferation, migration, and invasion through suppressing PI3K-AKT pathway. In conclusion, LOXL1-AS1 predicts clinical progression and poor prognosis in osteosarcoma patients and functions as oncogenic lncRNA to regulate cell proliferation, cell cycle, migration, and invasion.
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E C, Yang J, Li H, Li C. LncRNA LOC105372579 promotes proliferation and epithelial-mesenchymal transition in hepatocellular carcinoma via activating miR-4316/FOXP4 signaling. Cancer Manag Res 2019; 11:2871-2879. [PMID: 31114338 PMCID: PMC6489618 DOI: 10.2147/cmar.s197979] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Accepted: 02/25/2019] [Indexed: 12/24/2022] Open
Abstract
Background: Recently, a growing number of long noncoding RNAs (lncRNAs) have been identified to be important for human cancer development. However, how lncRNA regulates hepatocellular carcinoma (HCC) progression still remains largely unclear. We aimed to investigate the function of LOC105372579 in HCC progression. Materials and methods: The expression levels of lncRNA LOC105372579 in HCC tissues and cell lines were analyzed by qRT-PCR. The effects of LOC105372579 silencing on proliferation, migration and invasion were determined by using cell counting kit-8, colony formation assay and Transwell assay. Moreover, the xenograft mouse model was used to detect how LOC105372579 regulates HCC growth in vivo. Results: LOC105372579 was highly expressed in HCC tissues and cell lines. Moreover, upregulated levels of LOC105372579 predicted poor prognosis. LOC105372579 silencing suppressed the proliferation of HCC cells in vitro. We also validated that LOC105372579 knockdown inhibited the migration, invasion, and epithelial-mesenchymal transition of HCC cells. Xenograft assay demonstrated that LOC105372579 promotes tumor growth in vivo. Mechanistically, we identified that LOC105372579 is a sponge for miR-4316 and that FOXP4 is a direct target of miR-4316. Conclusion: Thus, our findings supported that LOC105372579 contributes to HCC cell proliferation, migration, invasion, and EMT by activating miR-4316/FOXP4 signaling.
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Affiliation(s)
- Changyong E
- Department of Hepatobiliary and Pancreatic Surgery, China-Japan Union Hospital of Jilin University, Changchun 130033, People's Republic of China
| | - Jinghui Yang
- Department of Hepatobiliary and Pancreatic Surgery, China-Japan Union Hospital of Jilin University, Changchun 130033, People's Republic of China
| | - Hang Li
- Department of Cerebral Surgery, Jilin Cancer Hospital, Changchun 130000, People's Republic of China
| | - Chunsheng Li
- Department of Gastrointestinal Colorectal and Anal Surgery, China-Japan Union Hospital of Jilin University, Changchun 130033, People's Republic of China
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Bountali A, Tonge DP, Mourtada-Maarabouni M. RNA sequencing reveals a key role for the long non-coding RNA MIAT in regulating neuroblastoma and glioblastoma cell fate. Int J Biol Macromol 2019; 130:878-891. [PMID: 30836187 DOI: 10.1016/j.ijbiomac.2019.03.005] [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: 01/21/2019] [Revised: 02/28/2019] [Accepted: 03/01/2019] [Indexed: 12/29/2022]
Abstract
Myocardial Infarction Associated Transcript (MIAT) is a subnuclear lncRNA that interferes with alternative splicing and is associated with increased risk of various heart conditions and nervous system tumours. The current study aims to elucidate the role of MIAT in cell survival, apoptosis and migration in neuroblastoma and glioblastoma multiforme. To this end, MIAT was silenced by MIAT-specific siRNAs in neuroblastoma and glioblastoma cell lines, and RNA sequencing together with a series of functional assays were performed. The RNA sequencing has revealed that the expression of an outstanding number of genes is altered, including genes involved in cancer-related processes, such as cell growth and survival, apoptosis, reactive oxygen species (ROS) production and migration. Furthermore, the functional studies have confirmed the RNA sequencing leads, with our key findings suggesting that MIAT knockdown eliminates long-term survival and migration and increases basal apoptosis in neuroblastoma and glioblastoma cell lines. Taken together with the recent demonstration of the involvement of MIAT in glioblastoma, our observations suggest that MIAT could possess tumour-promoting properties, thereby acting as an oncogene, and has the potential to be used as a reliable biomarker for neuroblastoma and glioblastoma and be employed for prognostic, predictive and, potentially, therapeutic purposes for these cancers.
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Affiliation(s)
- Aikaterini Bountali
- School of Life Sciences, Faculty of Natural Sciences, Keele University, Newcastle-under-Lyme ST5 5BG, UK
| | - Daniel P Tonge
- School of Life Sciences, Faculty of Natural Sciences, Keele University, Newcastle-under-Lyme ST5 5BG, UK
| | - Mirna Mourtada-Maarabouni
- School of Life Sciences, Faculty of Natural Sciences, Keele University, Newcastle-under-Lyme ST5 5BG, UK.
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