1
|
Hussain MS, Gupta G, Afzal M, Alqahtani SM, Samuel VP, Hassan Almalki W, Kazmi I, Alzarea SI, Saleem S, Dureja H, Singh SK, Dua K, Thangavelu L. Exploring the role of lncrna neat1 knockdown in regulating apoptosis across multiple cancer types: A review. Pathol Res Pract 2023; 252:154908. [PMID: 37950931 DOI: 10.1016/j.prp.2023.154908] [Citation(s) in RCA: 25] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 10/22/2023] [Accepted: 10/24/2023] [Indexed: 11/13/2023]
Abstract
Long non-coding RNAs (lncRNAs) have emerged as pivotal regulators of gene expression, contributing significantly to a diverse range of cellular processes, including apoptosis. One such lncRNA is NEAT1, which is elevated in several types of cancer and aid in cancer growth. However, recent studies have also demonstrated that the knockdown of NEAT1 can inhibit cancer cells proliferation, movement, and infiltration while enhancing apoptosis. This article explores the function of lncRNA NEAT1 knockdown in regulating apoptosis across multiple cancer types. We explore the existing understanding of NEAT1's involvement in the progression of malignant conditions, including its structure and functions. Additionally, we investigate the molecular mechanisms by which NEAT1 modulates the cell cycle, cellular proliferation, apoptosis, movement, and infiltration in diverse cancer types, including acute myeloid leukemia, breast cancer, cervical cancer, colorectal cancer, esophageal squamous cell carcinoma, glioma, non-small cell lung cancer, ovarian cancer, prostate cancer, and retinoblastoma. Furthermore, we review the recent studies investigating the therapeutic potential of NEAT1 knockdown in cancer treatment. Targeting the lncRNA NEAT1 presents a promising therapeutic approach for treating cancer. It has shown the ability to suppress cancer cell proliferation, migration, and invasion while promoting apoptosis in various cancer types.
Collapse
Affiliation(s)
- Md Sadique Hussain
- School of Pharmaceutical Sciences, Jaipur National University, Jagatpura, 302017 Jaipur, Rajasthan, India
| | - Gaurav Gupta
- School of Pharmacy, Graphic Era Hill University, Dehradun 248007, India; School of Pharmacy, Suresh Gyan Vihar University, Jagatpura, Mahal Road, Jaipur, India
| | - Muhammad Afzal
- Department of Pharmaceutical Sciences, Pharmacy Program, Batterjee Medical College, P.O. Box 6231, Jeddah 21442, Saudi Arabia
| | - Safar M Alqahtani
- Department of Pharmaceutical Chemistry, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al Kharj 11942, Saudi Arabia
| | - Vijaya Paul Samuel
- Department of Anatomy, RAK Medical & Health Sciences University, Ras Al Khaimah College of Medical Sciences, Ras Al Khaimah, United Arab Emirates
| | - Waleed Hassan Almalki
- Department of Pharmacology, College of Pharmacy, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Imran Kazmi
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Sami I Alzarea
- Department of Pharmacology, College of Pharmacy, Jouf University, Sakaka, Al-Jouf, Saudi Arabia
| | - Shakir Saleem
- Department of Public Health, College of Health Sciences, Saudi Electronic University, Riyadh, Saudi Arabia
| | - Harish Dureja
- Department of Pharmaceutical Sciences, Maharshi Dayanand University, Rohtak, India
| | - Sachin Kumar Singh
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Punjab 144411, India; Faculty of Health, Australian Research Centre in Complementary and Integrative Medicine, University of Technology Sydney, Ultimo NSW 2007, Australia
| | - Kamal Dua
- Department of Pharmaceutical Sciences, Maharshi Dayanand University, Rohtak, India; Faculty of Health, Australian Research Centre in Complementary and Integrative Medicine, University of Technology Sydney, Ultimo NSW 2007, Australia; Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, NSW 2007, Australia
| | - Lakshmi Thangavelu
- Centre for Global Health Research, Saveetha Medical College, Saveetha Institute of Medical and Technical Sciences, Saveetha University, India.
| |
Collapse
|
2
|
An Updated Review of Contribution of Long Noncoding RNA-NEAT1 to the Progression of Human Cancers. Pathol Res Pract 2023; 245:154380. [PMID: 37043964 DOI: 10.1016/j.prp.2023.154380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Revised: 02/12/2023] [Accepted: 02/16/2023] [Indexed: 02/26/2023]
Abstract
Long non-coding RNAs (lncRNAs) present pivotal roles in cancer tumorigenesis and progression. Recently, nuclear paraspeckle assembly transcript 1 (NEAT1) as a lncRNA has been shown to mediate cell proliferation, migration, and EMT in tumor cells. NEAT1 by targeting several miRNAs/mRNA axes could regulate cancer cell behavior. Therefore, NEAT1 may function as a potent biomarker for the prediction and treatment of some human cancers. In this review, we summarized various NEAT1-related signaling pathways that are critical in cancer initiation and progression.
Collapse
|
3
|
Zhao X, Wu J, Zhao X, Yin M. Multi-view contrastive heterogeneous graph attention network for lncRNA-disease association prediction. Brief Bioinform 2023; 24:6931723. [PMID: 36528809 DOI: 10.1093/bib/bbac548] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 10/23/2022] [Accepted: 11/11/2022] [Indexed: 12/23/2022] Open
Abstract
MOTIVATION Exploring the potential long noncoding RNA (lncRNA)-disease associations (LDAs) plays a critical role for understanding disease etiology and pathogenesis. Given the high cost of biological experiments, developing a computational method is a practical necessity to effectively accelerate experimental screening process of candidate LDAs. However, under the high sparsity of LDA dataset, many computational models hardly exploit enough knowledge to learn comprehensive patterns of node representations. Moreover, although the metapath-based GNN has been recently introduced into LDA prediction, it discards intermediate nodes along the meta-path and results in information loss. RESULTS This paper presents a new multi-view contrastive heterogeneous graph attention network (GAT) for lncRNA-disease association prediction, MCHNLDA for brevity. Specifically, MCHNLDA firstly leverages rich biological data sources of lncRNA, gene and disease to construct two-view graphs, feature structural graph of feature schema view and lncRNA-gene-disease heterogeneous graph of network topology view. Then, we design a cross-contrastive learning task to collaboratively guide graph embeddings of the two views without relying on any labels. In this way, we can pull closer the nodes of similar features and network topology, and push other nodes away. Furthermore, we propose a heterogeneous contextual GAT, where long short-term memory network is incorporated into attention mechanism to effectively capture sequential structure information along the meta-path. Extensive experimental comparisons against several state-of-the-art methods show the effectiveness of proposed framework.The code and data of proposed framework is freely available at https://github.com/zhaoxs686/MCHNLDA.
Collapse
Affiliation(s)
- Xiaosa Zhao
- School of Information Science and Technology, Northeast Normal University, Changchun 130117, China
| | - Jun Wu
- School of Information Science and Technology, Northeast Normal University, Changchun 130117, China
| | - Xiaowei Zhao
- School of Information Science and Technology, Northeast Normal University, Changchun 130117, China
| | - Minghao Yin
- School of Information Science and Technology, Northeast Normal University, Changchun 130117, China
| |
Collapse
|
4
|
Rothzerg E, Feng W, Song D, Li H, Wei Q, Fox A, Wood D, Xu J, Liu Y. Single-Cell Transcriptome Analysis Reveals Paraspeckles Expression in Osteosarcoma Tissues. Cancer Inform 2022; 21:11769351221140101. [PMID: 36507075 PMCID: PMC9730017 DOI: 10.1177/11769351221140101] [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: 08/03/2022] [Accepted: 10/30/2022] [Indexed: 12/12/2022] Open
Abstract
Nuclear paraspeckles are subnuclear bodies contracted by nuclear-enriched abundant transcript 1 (NEAT1) long non-coding RNA, localised in the interchromatin space of mammalian cell nuclei. Paraspeckles have been critically involved in tumour progression, metastasis and chemoresistance. To this date, there are limited findings to suggest that paraspeckles, NEAT1 and heterogeneous nuclear ribonucleoproteins (hnRNPs) directly or indirectly play roles in osteosarcoma progression. Herein, we analysed NEAT1, paraspeckle proteins (SFPQ, PSPC1 and NONO) and hnRNP members (HNRNPK, HNRNPM, HNRNPR and HNRNPD) gene expression in 6 osteosarcoma tumour tissues using the single-cell RNA-sequencing method. The normalised data highlighted that the paraspeckles transcripts were highly abundant in osteoblastic OS cells, except NEAT1, which was highly expressed in myeloid cell 1 and 2 subpopulations.
Collapse
Affiliation(s)
- Emel Rothzerg
- School of Biomedical Sciences, The University of Western Australia, Perth, WA, Australia,Perron Institute for Neurological and Translational Science, Queen Elizabeth II Medical Centre, Nedlands, WA, Australia
| | - Wenyu Feng
- Department of Orthopaedics, Second Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Dezhi Song
- School of Biomedical Sciences, The University of Western Australia, Perth, WA, Australia,Department of Orthopaedics, First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Hengyuan Li
- School of Biomedical Sciences, The University of Western Australia, Perth, WA, Australia,Department of Orthopedics, Centre for Orthopedic Research, Second Affiliated Hospital, School of Medicine, Orthopedics Research Institute, Zhejiang University, Hangzhou, China
| | - Qingjun Wei
- Department of Orthopaedics, First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Archa Fox
- School of Human Sciences and Molecular Sciences, The University of Western Australia and Harry Perkins Institute of Medical Research, Centre for Medical Research, The University of Western Australia, Perth, WA, Australia
| | - David Wood
- Medical School, The University of Western Australia, Perth, WA, Australia
| | - Jiake Xu
- School of Biomedical Sciences, The University of Western Australia, Perth, WA, Australia,Jiake Xu, School of Biomedical Sciences, The University of Western Australia, 35 Stirling Hwy, Perth, WA 6009, Australia.
| | - Yun Liu
- School of Biomedical Sciences, The University of Western Australia, Perth, WA, Australia,Department of Orthopaedics, First Affiliated Hospital of Guangxi Medical University, Nanning, China,Yun Liu, School of Biomedical Sciences, The University of Western Australia, 35 Stirling Hwy, Perth, WA 6009, Australia.
| |
Collapse
|
5
|
Zhou H, Wang Y, Liu Z, Zhang Z, Xiong L, Wen Y. Recent advances of NEAT1-miRNA interactions in cancer. Acta Biochim Biophys Sin (Shanghai) 2022; 54:153-162. [PMID: 35538025 PMCID: PMC9827865 DOI: 10.3724/abbs.2021022] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
With high incidence rate, cancer is the main cause of death in humans. Non-coding RNAs, as novel master regulators, especially long non-coding RNAs (lncRNAs) and microRNAs (miRNAs), play important roles in the regulation of tumorigenesis. lncRNA NEAT1 has recently gained much attention, as it is dysregulated in a broad spectrum of cancers, where it acts as either an oncogene or a tumor suppressor gene. Accumulating evidence shows that NEAT1 is correlated with the process of carcinogenesis, including proliferation, invasion, survival, drug resistance, and metastasis. NEAT1 is considered to be a biomarker and a novel therapeutic target for the diagnosis and prognosis of different cancer types. The mechanisms by which NEAT1 plays a critical role in cancers are mainly via interactions with miRNAs. NEAT1-miRNA regulatory networks play significant roles in tumorigenesis, which has attracted much attention from researchers around the world. In this review, we summarize the interaction of NEAT1 with miRNAs in the regulation of protein-coding genes in cancer. A better understanding of the NEAT1-miRNA interactions in cancer will help develop new diagnostic biomarkers and therapeutic approaches.
Collapse
Affiliation(s)
| | | | | | | | | | - Yu Wen
- Correspondence address. Tel: +86-731-85294099; E-mail:
| |
Collapse
|
6
|
The Role of Long Non-coding RNA, Nuclear Enriched Abundant Transcript 1 (NEAT1) in Cancer and Other Pathologies. Biochem Genet 2021; 60:843-867. [PMID: 34689290 DOI: 10.1007/s10528-021-10138-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Accepted: 09/23/2021] [Indexed: 02/08/2023]
Abstract
Nuclear enriched abundant transcript 1 (NEAT1), consisting of two kinds of lncRNAs of 3.7 kB NEAT1-1 and 23 kB NEAT1-2, can be highly expressed in organs and tissues such as the ovary, prostate, colon, and pancreas, and is involved in paraspeckle formation and mRNA editing and gene expression. Therefore, NEAT1 is a potential biomarker for the treatment of a variety of diseases, which may be caused by two factors (isoforms of NEAT1 and NEAT1 sponging miRNA as ceRNA). However, there is still much confusion about the mechanism and downstream effector between the abnormal expression of NEAT1 and various diseases. This review summarizes recent research progress on NEAT1 in cancer and other pathologies and provides a more reliable theoretical basis for the treatment of related diseases.
Collapse
|
7
|
Chaudhary R. Potential of long non-coding RNAs as a therapeutic target and molecular markers in glioblastoma pathogenesis. Heliyon 2021; 7:e06502. [PMID: 33786397 PMCID: PMC7988331 DOI: 10.1016/j.heliyon.2021.e06502] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 09/20/2020] [Accepted: 03/09/2021] [Indexed: 12/14/2022] Open
Abstract
Glioblastoma (GB) is by far the most hostile type of malignant tumor that primarily affects the brain and spine, derived from star-shaped glial cells that are astrocytes and oligodendrocytes. Despite of significant efforts in recent years in glioblastoma research, the clinical efficacy of existing medical intervention is still limited and very few potential diagnostic markers are available. Long non-coding RNAs (lncRNAs) that lacks protein-coding capabilities were previously thought to be "junk sequences" in mammalian genomes are quite indispensible epigenetic regulators that can positively or negatively regulate gene expression and nuclear architecture, with significant roles in the initiation and development of tumors. Nevertheless, the precise mechanism of these distortedly expressed lncRNAs in glioblastoma pathogenesis is not yet fully understood. Since the advent of high-throughput sequencing technologies, more and more research have elucidated that lncRNAs are one of the most promising prognostic biomarkers and therapeutic targets for glioblastoma. In this paper, I briefly outlined the existing findings of lncRNAs. And also summarizes the profiles of different lncRNAs that have been broadly classified in glioblastoma research, with emphasis on both their prognostic and therapeutic values.
Collapse
Affiliation(s)
- Rishabh Chaudhary
- Department of Pharmaceutical Sciences, Babasaheb Bhimrao Ambedkar University, Vidya Vihar, Raebareli Road, Lucknow 226025, U.P., India
| |
Collapse
|
8
|
Wang L, Zhou J, Zhang Y, Hu T, Sun Y. Long Non-Coding RNA HCG11 Aggravates Osteosarcoma Carcinogenesis via Regulating the microRNA-579/MMP13 Axis. Int J Gen Med 2020; 13:1685-1695. [PMID: 33408506 PMCID: PMC7781107 DOI: 10.2147/ijgm.s274641] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 11/25/2020] [Indexed: 12/21/2022] Open
Abstract
Background Previous studies have suggested that long non-coding RNAs (lncRNAs) were involved in tumorigenesis of various human carcinomas, including osteosarcoma (OS). However, the expression and specific role of lncRNA HLA complex group 11 (HCG11) in OS remain unknown. The current study aimed at revealing the role of lncRNA HCG11 and its related mechanism in OS. Methods lncRNA HCG11 expression was verified with RT-qPCR followed by sub-localization determination. LncRNA-microRNA (miRNA) and miRNA–mRNA interactions were predicted by online bioinformatics websites. Validation was performed using dual-luciferase reporter gene assays, and gain- and loss-of-function experiments. The effects of lncRNA HCG11, miR-579 and matrix metalloproteinase 13 (MMP13) on the proliferation, migration and invasion, epithelial-mesenchymal transition (EMT) of OS cells were detected using cell counting kit-8 (CCK-8), Transwell assays and Western blot analysis. Results LncRNA HCG11 overexpression was observed in OS tissues and cell lines. Downregulation of lncRNA HCG11/MMP13 or overexpression of miR-579 blocked the progression of OS cells. LncRNA HCG11, which is located in the cytoplasm, promoted MMP13 expression through sponging miR-579. Conclusion LncRNA HCG11 might be beneficial for OS aggravation via sponging miR-579 and facilitating MMP13 expression, which represents a candidate biomarker and target for OS therapy.
Collapse
Affiliation(s)
- Lili Wang
- Clinical Laboratory Department, Ningbo Sixth Hospital, Ningbo 315000, Zhejiang, People's Republic of China
| | - Jingzhen Zhou
- Clinical Laboratory Department, Ningbo Second Hospital, Ningbo 315000, Zhejiang, People's Republic of China
| | - Yong Zhang
- Department of Bone Oncology, Ningbo Sixth Hospital, Ningbo 315000, Zhejiang, People's Republic of China
| | - Tao Hu
- Department of Orthopaedics, The First People's Hospital of Yongkang, Yongkang 321300, Zhejiang, People's Republic of China
| | - Yongning Sun
- Clinical Laboratory Department, Ningbo Sixth Hospital, Ningbo 315000, Zhejiang, People's Republic of China
| |
Collapse
|
9
|
Yao W, Yan Q, Du X, Hou J. TNK2-AS1 upregulated by YY1 boosts the course of osteosarcoma through targeting miR-4319/WDR1. Cancer Sci 2020; 112:893-905. [PMID: 33164271 PMCID: PMC7893995 DOI: 10.1111/cas.14727] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 10/26/2020] [Accepted: 11/01/2020] [Indexed: 02/06/2023] Open
Abstract
Mounting research papers have suggested that long non-coding RNAs (lncRNAs) elicit important functions in the progression of osteosarcoma (OS). This study focused on the role of TNK2-AS1 in OS. TNK2-AS1 was powerfully expressed in OS tissues and cell lines. In addition, TNK2-AS1 downregulation inhibited proliferative, migratory, and invasive capacities while promoting apoptosis in OS cells. miR-4319 was removed by TNK2-AS1 and therefore TNK2-AS1 elevated WDR1 expression in OS cells. miR-4319 had an inhibitory influence on OS progression, while WDR1 was a contributor to OS progression. Rescue assays certified that TNK2-AS1 promoted malignant phenotypes in vitro and the growth in vivo of OS cells by upregulating WDR1. In depth, we found that YY1 accelerated the transcription of TNK2-AS1 in OS cells, and that its role in OS also depended on TNK2-AS1-regulated WDR1. In conclusion, TNK2-AS1 was positively modulated by YY1 and aggravated the development of OS by 'sponging' miR-4319 to elevate WDR1. The findings highlighted that TNK2-AS1 might be a promising target for the treatment of OS.
Collapse
Affiliation(s)
- Weitao Yao
- Department of Bone and Soft Tumor, Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, China
| | - Qiang Yan
- Department of Bone and Soft Tumor, Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, China
| | - Xinhui Du
- Department of Bone and Soft Tumor, Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, China
| | - Jingyu Hou
- Department of Bone and Soft Tumor, Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, China
| |
Collapse
|
10
|
NEAT1 and Paraspeckles in Cancer Development and Chemoresistance. Noncoding RNA 2020; 6:ncrna6040043. [PMID: 33143162 PMCID: PMC7712271 DOI: 10.3390/ncrna6040043] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Revised: 09/21/2020] [Accepted: 10/26/2020] [Indexed: 12/12/2022] Open
Abstract
Non-coding RNA were previously thought to be biologically useless molecules arising from simple transcriptional noise. These are now known to be an integral part of cellular biology and pathology. The wide range of RNA molecules have a diverse range of structures, functions, and mechanisms of action. However, structural long non-coding RNAs (lncRNAs) are a particular class of ncRNA that are proving themselves more and more important in cellular biology, as the exact structures that such RNAs form and stabilise become more understood. Nuclear Enriched Abundant Transcript 1 (NEAT1) is a specific structural RNA emerging as a critical component in the progress and development of cancer. NEAT1 forms part of multiple biological pathways, acting through a diverse group of mechanisms. The most important of these is the formation of the paraspeckle, through which it can influence the stability of a tumour to develop resistance to drugs. This review will thus cover the range of effects by which NEAT1 interacts with cancer progression in order to describe the various roles of NEAT1 in chemoresistance, as well as to identify drug targets that protein research alone could not provide.
Collapse
|
11
|
Yao X, Wu L, Gu Z, Li J. LINC01535 Promotes the Development of Osteosarcoma Through Modulating miR-214-3p/KCNC4 Axis. Cancer Manag Res 2020; 12:5575-5585. [PMID: 32753970 PMCID: PMC7354912 DOI: 10.2147/cmar.s232757] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Accepted: 05/09/2020] [Indexed: 12/26/2022] Open
Abstract
Background Osteosarcoma (OS) is the most common primary bone tumor in group of children and adolescents. Increasing studies showed that long non-coding RNAs (lncRNAs) exerted important functions in the development of tumors, including OS. LINC01535 is an lncRNA which has been studied in cervical cancer but not in OS. Aim of the Study This study was aimed to explore the biological function and mechanism of LINC01535 in OS. Methods LINC01535 expression was detected by qRT-PCR. Colony formation assay, EdU assay and CCK-8 assay were applied to check cell proliferation ability in OS. Flow cytometry analysis was conducted to measure cell apoptosis capacity. Wound healing assay and transwell assay were performed to assess cell migration and invasion. Luciferase reporter assay and RNA pull-down assay were carried out to verify the molecular mechanism. Results The high expression of LINC01535 was presented in OS tissues and cell lines compared with adjacent normal tissues and human osteoblasts. Moreover, OS patients with high LINC01535 expression exhibited poor prognosis. Loss-of-function assay revealed that silenced LINC01535 significantly attenuated cell proliferation, migration and invasion, and enhanced cell apoptosis in OS. Through mechanistic exploration, we found that LINC01535 interacted with miR-214-3p, and KCNC4 was validated to be a target gene of miR-214-3p. The levels of KCNC4 mRNA and protein were positively modulated by LINC01535 and reversely mediated by miR-214-3p. Based on rescue experiments, KCNC4 overexpression reserved the suppressive function of silenced LINC01535 on OS cell growth, migration and invasion. Conclusion LINC01535, miR-214-3p and KCNC4 constituted an effective axis that exerted a pregnant regulation in OS development, which is a quite meaningful discovery for exploring potential therapeutic methods for OS patients.
Collapse
Affiliation(s)
- Xiaoke Yao
- Department of Orthopedics, Chengdu First People's Hospital, Chengdu 610041, Sichuan, People's Republic of China
| | - Lingna Wu
- Intensive Care Unit, Chengdu First People's Hospital, Chengdu, Sichuan, 610041, People's Republic of China
| | - Zuchao Gu
- Department of Orthopedics, Chengdu First People's Hospital, Chengdu 610041, Sichuan, People's Republic of China
| | - Jianhua Li
- Department of Orthopedics, Chengdu First People's Hospital, Chengdu 610041, Sichuan, People's Republic of China
| |
Collapse
|
12
|
Wang Y, Gao Y, Guo S, Chen Z. Integrated analysis of lncRNA-associated ceRNA network identified potential regulatory interactions in osteosarcoma. Genet Mol Biol 2020; 43:e20190090. [PMID: 32453338 PMCID: PMC7252519 DOI: 10.1590/1678-4685-gmb-2019-0090] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Accepted: 03/05/2020] [Indexed: 12/24/2022] Open
Abstract
This study aimed to identify potential therapeutic targets in osteosarcoma (OS) through the network analysis of competing endogenous RNAs (ceRNAs). The differentially expressed miRNAs (DEMIs) and mRNAs (DEMs) were identified between OS cell lines and human mesenchymal stem cells (hMSCs) from the data deposited under GSE70415 using limma package. Functional analysis of DEMs was performed using DAVID and clusterProfiler to identify significantly enriched Gene Ontology biological processes and KEGG pathways, respectively. The DEMI-DEM interaction network was constructed using Cytoscape. LncRNA-miRNA interactions were predicted using starBase database. The ceRNA regulatory network was constructed by integrating mRNAs, miRNAs, and lncRNAs, and functional enrichment analysis was performed for the genes involved. The analysis revealed a total of 326 DEMs and 54 DEMIs between OS cells and hMSCs. We identified several novel therapeutic targets involved in the progression and metastasis of OS, such as CBX7, RAD9A, SNHG7 and miR-34a-5p. The miRNA, miR-543 (target gene: CBX7) was found to be associated with the pathway Mucin type O-glycan biosynthesis. Using the ceRNA network, we established the following regulatory interactions: NEAT1/miR-543/CBX7, SNHG7/miR-34a-5p/RAD9A, and XIST/miR-34a-5p/RAD9A. CBX7, RAD9A, lncRNA SNHG7, miR-543, and miR-34a-5p may be explored as novel therapeutic targets for treatment of OS.
Collapse
Affiliation(s)
- Yongwei Wang
- Department of Anatomy, Basic Medical Institute, Chengde Medical
College, Chengde 067000, Hebei, China
| | - Yaxian Gao
- Department of Immunology, Basic Medical Institute, Chengde Medical
College, Chengde 067000, Hebei, China
| | - Sen Guo
- Department of Anatomy, Basic Medical Institute, Chengde Medical
College, Chengde 067000, Hebei, China
| | - Zhihong Chen
- Department of Anatomy, Basic Medical Institute, Chengde Medical
College, Chengde 067000, Hebei, China
| |
Collapse
|
13
|
Shao K, Xi L, Cang Z, Chen C, Huang S. Knockdown of NEAT1 exerts suppressive effects on diabetic retinopathy progression via inactivating TGF-β1 and VEGF signaling pathways. J Cell Physiol 2020; 235:9361-9369. [PMID: 32356340 DOI: 10.1002/jcp.29740] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2019] [Revised: 02/21/2020] [Accepted: 04/19/2020] [Indexed: 12/16/2022]
Abstract
Diabetic retinopathy (DR) is complication resulted from Type 2 diabetes mellitus. Accumulating evidence has proved the functions of long noncoding RNAs (lncRNAs) in the progression of DR. Recent reports exert the numerous regulatory functions of lncRNA nuclear-enriched abundant transcript 1 (NEAT1) in various diseases. However, its implications in DR remain barely known. Therefore, this study was carried out to explore the role of NEAT1 in high-glucose (HG)-triggered injury of human retinal endothelial cells (hRECs). Here, we found the NEAT1 level was significantly elevated in patients with DR, in the retina of diabetic rats and mice. Meanwhile, hRECs under HG stimuli also exhibited an increase of NEAT1. Moreover, the loss of NEAT1 enhanced hRECs proliferation and repressed HG-induced apoptosis, which was accompanied by an upregulation of Bcl-2 and a downregulation of Bax. Subsequently, the knockdown of NEAT1 obviously reduced HG-triggered oxidative stress injury in hRECs. It was reflected that intracellular reactive oxygen species and malondialdehyde level induced by HG were repressed by NEAT1 downregulation, while superoxide dismutase activity was increased. In addition, decreased NEAT1 repressed the inflammatory processes effectively as indicated by the inactivation of inflammatory cytokines Cox-2, interleukin-6, and tumor necrosis factor-α. Furthermore, vascular endothelial growth factor A (VEGF) and transforming growth factor-β1 (TGF-β1) expression in patients with DR, DR rats, and HG-incubated hRECs was obviously increased. The silence of NEAT1 could reduce the enhanced expression of VEGF and TGF-β1 induced by HG. Hence, we concluded NEAT1 might contribute to the development of DR through activating TGF-β1 and VEGF.
Collapse
Affiliation(s)
- Kan Shao
- Department of Endocrinology, Shanghai Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Liuqing Xi
- Department of Endocrinology, Shanghai Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhen Cang
- Department of Endocrinology, Shanghai Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Cheng Chen
- School of Environmental and Materials Engineering, College of Engineering, Shanghai Polytechnic University, Shanghai, China
| | - Shan Huang
- Department of Endocrinology, Shanghai Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| |
Collapse
|
14
|
Wang H, Wang F, Ouyang W, Jiang X, Li W. MALAT1 knockdown inhibits hypopharyngeal squamous cell carcinoma malignancy by targeting microRNA-194. Oncol Lett 2020; 20:173-182. [PMID: 32565945 PMCID: PMC7285813 DOI: 10.3892/ol.2020.11551] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Accepted: 03/13/2020] [Indexed: 12/30/2022] Open
Abstract
Metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) is involved in the oncogenesis and progression of various types of cancer. However, the function of MALAT1 in hypopharyngeal squamous cell carcinoma (HSCC) is not completely understood. In the present study, MALAT1 expression levels were determined using reverse transcription-quantitative PCR, and Cell Counting Kit-8, Transwell and flow cytometry assays were performed to investigate the biological functions of HSCC cells. The results indicated that MALAT1 was upregulated in HSCC. MALAT1 knockdown suppressed HSCC cell proliferation, migration and invasion, and promoted apoptosis compared with the control group. Additionally, microRNA (miR)-194 was identified as a target of MALAT1 and was expressed at low levels in HSCC tissues compared with adjacent non-tumor tissues. A miR-194 agomir inhibited malignant cell behaviors, including cell proliferation, migration and invasion, whereas miR-194 antagomir promoted malignant behaviors compared with the corresponding control groups. In addition, the results suggested that MALAT1 knockdown inhibited the malignant behaviors of HSCC cells by binding miR-194. miR-194 inhibition partially reversed the MALAT1 knockdown-induced inhibitory effects on HSCC cells. Furthermore, MALAT1 knockdown combined with miR194 mimics resulted in the lowest tumor volume among all tested groups in vivo. In conclusion, the results of the present study suggested that MALAT1 knockdown suppressed the malignant behavior of HSCC by targeting miR-194; therefore, MALAT1 may serve as a novel therapeutic target for HSCC.
Collapse
Affiliation(s)
- Hongming Wang
- Department of Otolaryngology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Fei Wang
- Department of Otolaryngology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Wenyu Ouyang
- Department of Otolaryngology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Xuejun Jiang
- Department of Otolaryngology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Wei Li
- Department of Otolaryngology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| |
Collapse
|
15
|
Downregulation of serum miR-194 predicts poor prognosis in osteosarcoma patients. Ann Diagn Pathol 2020; 46:151488. [PMID: 32172218 DOI: 10.1016/j.anndiagpath.2020.151488] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 02/12/2020] [Accepted: 02/25/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND Circulating microRNAs (miRNAs) have promising potential as diagnostic and prognostic biomarkers for osteosarcoma. This study aimed to explore the expression pattern of serum miR-194 and its potential clinical value in patients with osteosarcoma. METHODS Messenger RNA was isolated from serum sample from 124 osteosarcoma patients, 60 periostitis patients and 60 healthy volunteers. The serum miR-194 level was then examined by quantitative real-time polymerase chain reaction (qRT-PCR). The bioinformatic analysis of the downstream targets of miR-194 was also performed. RESULTS The results showed serum miR-194 levels were significantly decreased in osteosarcoma patients compared to those in periostitis patients or healthy controls. Receiver-operating characteristic (ROC) analysis demonstrated that serum miR-194 had a good diagnostic value for identifying osteosarcoma subjects from periostitis patients and normal controls. In addition, serum miR-194 levels were dramatically increased following surgery in osteosarcoma cases. Moreover, low serum miR-194 expression was strongly correlated with positive metastasis and advanced clinical stage, as well as worse survival. Furthermore, serum miR-194 was confirmed to be an independent prognostic biomarker for osteosarcoma. Bioinformatic analysis showed that the downstream targeted genes of miR-194 were closely associated with cancer initiation and development. CONCLUSION In conclusion, our results have demonstrated that serum miR-194 might serve as a novel and promising biomarker for the detection and prognosis of osteosarcoma.
Collapse
|
16
|
Depression of lncRNA NEAT1 Antagonizes LPS-Evoked Acute Injury and Inflammatory Response in Alveolar Epithelial Cells via HMGB1-RAGE Signaling. Mediators Inflamm 2020; 2020:8019467. [PMID: 32089649 PMCID: PMC7025070 DOI: 10.1155/2020/8019467] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Revised: 12/31/2019] [Accepted: 01/16/2020] [Indexed: 12/18/2022] Open
Abstract
Sepsis-evoked acute lung injury (ALI) and its extreme manifestation, acute respiratory distress syndrome (ARDS), constitute a major cause of mortality in intensive care units. High levels of the long noncoding RNA nuclear paraspeckle assembly transcript 1 (NEAT1) have been positively correlated with increased severity and unfavorable prognoses in patients with sepsis. Nevertheless, the function and molecular mechanism of NEAT1 in ALI remain elusive. In the current study, high levels of NEAT1 were confirmed in lipopolysaccharide- (LPS-) induced ALI mice models and in LPS-stimulated cells from the alveolar epithelial A549 cell line. Intriguingly, cessation of NEAT1 led to increased cell viability and decreased lactate dehydrogenase release, apoptosis, and caspase-3/9 activity, which conferred protection against LPS-induced injury in these cells. NEAT1 inhibition also restrained LPS-evoked transcripts and production of inflammatory cytokines IL-6, IL-1β, and TNF-α. A mechanism analysis corroborated the activation of high-mobility group box1 (HMGB1)/receptors for advanced glycation end products (RAGE) and NF-κB signaling in LPS-treated A549 cells. NEAT1 suppression reversed the activation of this pathway. Notably, reactivating HMGB1/RAGE signaling via HMGB1 overexpression blunted the anti-injury and anti-inflammation effects of NEAT1 knockdown. These findings suggest that NEAT1 may aggravate the progression of ALI and ARDS by inducing alveolar epithelial cell injury and inflammation via HMGB1/RAGE signaling, implying a promising treatment target for these conditions.
Collapse
|
17
|
Viera GM, Salomao KB, de Sousa GR, Baroni M, Delsin LEA, Pezuk JA, Brassesco MS. miRNA signatures in childhood sarcomas and their clinical implications. Clin Transl Oncol 2019; 21:1583-1623. [PMID: 30949930 DOI: 10.1007/s12094-019-02104-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Accepted: 03/27/2019] [Indexed: 02/06/2023]
Abstract
Progresses in multimodal treatments have significantly improved the outcomes for childhood cancer. Nonetheless, for about one-third of patients with Ewing sarcoma, rhabdomyosarcoma, or osteosarcoma steady remission has remained intangible. Thus, new biomarkers to improve early diagnosis and the development of precision-targeted medicine remain imperative. Over the last decade, remarkable progress has been made in the basic understanding of miRNAs function and in interpreting the contribution of their dysregulation to cancer development and progression. On this basis, this review focuses on what has been learned about the pivotal roles of miRNAs in the regulation of key genes implicated in childhood sarcomas.
Collapse
Affiliation(s)
- G M Viera
- Ribeirao Preto School of Medicine, University of Sao Paulo, Ribeirao Preto, Brasil
| | - K B Salomao
- Ribeirao Preto School of Medicine, University of Sao Paulo, Ribeirao Preto, Brasil
| | - G R de Sousa
- Ribeirao Preto School of Medicine, University of Sao Paulo, Ribeirao Preto, Brasil
| | - M Baroni
- Ribeirao Preto School of Medicine, University of Sao Paulo, Ribeirao Preto, Brasil
| | - L E A Delsin
- Ribeirao Preto School of Medicine, University of Sao Paulo, Ribeirao Preto, Brasil
| | - J A Pezuk
- Anhanguera University of Sao Paulo, UNIAN/SP, Sao Paulo, Brasil
| | - M S Brassesco
- Faculty of Philosophy, Sciences and Letters at Ribeirao Preto, University of Sao Paulo, Ribeirao Preto, Brasil.
- Departamento de Biologia, FFCLRP-USP, Av. Bandeirantes, 3900, Bairro Monte Alegre, Ribeirao Preto, SP, CEP 14040-901, Brazil.
| |
Collapse
|
18
|
Liu X, Ma W, Ma J, Xiao L, Hao D. Upregulation of miR‑95-3p inhibits growth of osteosarcoma by targeting HDGF. Pathol Res Pract 2019; 215:152492. [PMID: 31257090 DOI: 10.1016/j.prp.2019.152492] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 05/22/2019] [Accepted: 06/08/2019] [Indexed: 12/20/2022]
Abstract
Osteosarcoma is the most common bone malignancy and miR-95-3p plays an important role in multiple cancers. The purpose of this study was to explore the effect and potential mechanism of miR-95-3p on the growth of osteosarcoma. In vitro, the osteosarcoma cell lines, SAOS-2 and U2OS cells, were transfected with miR-95-agomir to assess the role of miR-95-3p in proliferation and apoptosis of osteosarcoma cells. We determined that overexpression of miR-95-3p significantly attenuated cell proliferation but enhanced apoptosis in SAOS-2 and U2OS cells. We also found that overexpression of miR-95-3p in osteosarcoma cells downregulated the expression of hepatoma-derived growth factor (HDGF). Next, knockdown of HDGF by siRNA targeting HDGF clearly inhibited cell proliferation and induced apoptosis in U2OS cells. In vivo, a tumor formation assay in BALB/c nude mice was conducted by injecting the pre-miR-95 or control vector lentivirus-infected U2OS cells to determine the effect of miR-95-3p on the growth of osteosarcoma. Results showed miR-95-3p overexpression inhibited the osteosarcoma growth and downregulated the HDGF expression in xenografted tumor. For mechanism study, we co-transfected HDGF/pcDNA3.1 plasmid and miR-95-agomir to U2OS cells, and we demonstrated that overexpression of HDGF could attenuate the effects of miR-95-3p on U2OS cell proliferation, apoptosis and migration. These findings indicated that miR-95-3p might act as a potential tumor suppressor in osteosarcoma by targeting HDGF. Thus, miR-95-3p may become a potential therapeutic in treatment of osteosarcoma.
Collapse
Affiliation(s)
- Xiwei Liu
- Department of Orthopedics, Honghui Hospital, Xi'an Jiaotong University College of Medicine, Xi'an, Shaanxi, 710054, People's Republic of China
| | - Wei Ma
- Department of Orthopedics, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, People's Republic of China.
| | - Jianbing Ma
- Department of Orthopedics, Honghui Hospital, Xi'an Jiaotong University College of Medicine, Xi'an, Shaanxi, 710054, People's Republic of China
| | - Lin Xiao
- Department of Orthopedics, Honghui Hospital, Xi'an Jiaotong University College of Medicine, Xi'an, Shaanxi, 710054, People's Republic of China
| | - Dingjun Hao
- Department of Orthopedics, Honghui Hospital, Xi'an Jiaotong University College of Medicine, Xi'an, Shaanxi, 710054, People's Republic of China.
| |
Collapse
|
19
|
Ji S, Wang S, Zhao X, Lv L. Long noncoding RNA NEAT1 regulates the development of osteosarcoma through sponging miR-34a-5p to mediate HOXA13 expression as a competitive endogenous RNA. Mol Genet Genomic Med 2019; 7:e673. [PMID: 31044561 PMCID: PMC6565592 DOI: 10.1002/mgg3.673] [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: 01/08/2019] [Revised: 03/09/2019] [Accepted: 03/13/2019] [Indexed: 12/27/2022] Open
Abstract
Background Long noncoding RNA (lncRNA) exerts a potential regulatory role in tumorigenesis. LncRNA NEAT1 expression remains high in osteosarcoma tissues. However, its biological mechanism in osteosarcoma remains unknown. Methods In this study, NEAT1 expression in osteosarcoma cells was detected by qRT‐PCR. Proliferative and apoptosis potentials of osteosarcoma cells were determined by CCK‐8 assay and Flow Cytometry, respectively. We identified the potential target of NEAT1 through bioinformatics and dual‐luciferase reporter gene assay. Furthermore, their interaction and functions in regulating the development of osteosarcoma were clarified by Western blot and RIP assay. Results Our results demonstrated a high expression of NEAT1 in osteosarcoma tissues and cells. Overexpression of NEAT1 markedly accelerated proliferative and reduced apoptosis potentials of osteosarcoma cells. Besides, NEAT1 could positively regulate the expression of HOXA13 by competing with miR‐34a‐5p. Conclusion These results indicated that NEAT1 participated in the development of osteosarcoma as a ceRNA to competitively bind to miR‐34a‐5p and thus mediate HOXA13 expression.
Collapse
Affiliation(s)
- Shaolin Ji
- Hand Foot Surgery, Yidu Central Hospital of Weifang City, Qingzhou, China
| | - Shunsheng Wang
- Anorectal Surgery, Yidu Central Hospital of Weifang City, Qingzhou, China
| | - Xiaodan Zhao
- Thoracic Surgery, The First Hospital of Xingtai City, Xingtai, China
| | - Li Lv
- Hand Surgery, The Third Hospital of Hebei Medical University, Shijiazhuang, China
| |
Collapse
|
20
|
Xie Q, Lin S, Zheng M, Cai Q, Tu Y. Long noncoding RNA NEAT1 promotes the growth of cervical cancer cells via sponging miR-9-5p. Biochem Cell Biol 2019; 97:100-108. [PMID: 30096244 DOI: 10.1139/bcb-2018-0111] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Evidence has accumulated demonstrating that long noncoding RNAs (lncRNAs) participate in the initiation and progression of cancers. In this study, we found that the lncRNA nuclear paraspeckle assembly transcript 1 (NEAT1) is significantly increased in both cervical cancer tissues and cell lines. Overexpression of NEAT1 promoted the proliferation and migration of cervical cancer cells. Molecular studies uncovered that NEAT1 functions as competitive endogenous RNA (ceRNA), binding the micro-RNA miR-9-5p and suppressing its expression. However, we consistently found that when NEAT1 was highly expressed, it attenuated the inhibitory effect of miR-9-5p on the expression of PTEN and POU2F1, which are the targets of miR-9-5p. Consistent with the negative regulation of NEAT1 on miR-9-5p, restoration of miR-9-5p inhibited the growth-promoting effects of NEAT1 on cervical cancer cells. Taken together, these results indicated that NEAT1 plays an important role in the regulation cervical cancer cell growth by targeting miR-9-5p. Our findings characterized the possible mechanism of NEAT1 in cervical cancer.
Collapse
Affiliation(s)
- Qiuxian Xie
- Gynecology Department, Chaozhou Central Hospital, Chaozhou, Guangdong 521011, China
- Gynecology Department, Chaozhou Central Hospital, Chaozhou, Guangdong 521011, China
| | - Shanna Lin
- Gynecology Department, Chaozhou Central Hospital, Chaozhou, Guangdong 521011, China
- Gynecology Department, Chaozhou Central Hospital, Chaozhou, Guangdong 521011, China
| | - Manjia Zheng
- Gynecology Department, Chaozhou Central Hospital, Chaozhou, Guangdong 521011, China
- Gynecology Department, Chaozhou Central Hospital, Chaozhou, Guangdong 521011, China
| | - Qiutao Cai
- Gynecology Department, Chaozhou Central Hospital, Chaozhou, Guangdong 521011, China
- Gynecology Department, Chaozhou Central Hospital, Chaozhou, Guangdong 521011, China
| | - Ya Tu
- Gynecology Department, Chaozhou Central Hospital, Chaozhou, Guangdong 521011, China
- Gynecology Department, Chaozhou Central Hospital, Chaozhou, Guangdong 521011, China
| |
Collapse
|
21
|
Li B, Gu W, Zhu X. NEAT1 mediates paclitaxel-resistance of non-small cell of lung cancer through activation of Akt/mTOR signalling pathway. J Drug Target 2019; 27:1061-1067. [PMID: 30782035 DOI: 10.1080/1061186x.2019.1585437] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Development of paclitaxel-resistance is a main problem during non-small cell lung cancer (NSCLC) chemotherapy. Nuclear paraspeckle assembly transcript 1 (NEAT1) is an oncogenic long non-coding RNA (lncRNA) which has been proved to be aberrantly upregulated in many human malignancies. In this study, we investigated the mechanism by which NEAT1 contributed to paclitaxel-resistance in NSCLC. NEAT1 was upregulated significantly in paclitaxel-resistant NSCLC cell line, compared with other NSCLC cell lines and normal bronchial epithelial (BE) cell line. Knockdown of NEAT1 could reverse the paclitaxel-resistance through induction of apoptosis by increasing cleaved PARP and cleaved caspase-3 expression. Moreover, NEAT1 was associated with Akt/mTOR signalling pathway activation by increasing expression of p-Akt, p-mTOR, Bcl-2 and decreasing expression of Bax. In conclusion, these results demonstrated that NEAT1 underlay paclitaxel-resistance in NSCLC.
Collapse
Affiliation(s)
- Baiying Li
- Department of Tuberculosis, Hangzhou Red Cross Hospital , Hangzhou , Zhejiang , PR China
| | - Wenyue Gu
- Department of Pathology, Yancheng Hospital Affiliated Southeast University , Yancheng , Jiangsu , PR China
| | - Xinhai Zhu
- Department of Thoracic Surgery, Zhejiang Hospital , Hangzhou , Zhejiang , PR China
| |
Collapse
|
22
|
Zhu Z, Du S, Yin K, Ai S, Yu M, Liu Y, Shen Y, Liu M, Jiao R, Chen X, Guan W. Knockdown long noncoding RNA nuclear paraspeckle assembly transcript 1 suppresses colorectal cancer through modulating miR-193a-3p/KRAS. Cancer Med 2018; 8:261-275. [PMID: 30575330 PMCID: PMC6346262 DOI: 10.1002/cam4.1798] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Revised: 08/24/2018] [Accepted: 09/03/2018] [Indexed: 12/20/2022] Open
Abstract
The nuclear paraspeckle assembly transcript 1 (abbreviated as NEAT1), a nuclear sufficient long noncoding RNA (abbreviated as lncRNA), has aroused a rising concern in recent years. As uncovered by reports, the increase in NEAT1 is related to the deteriorated prognosis of lung cancer, breast cancer, hepatocellular cancer, and colorectal cancer (abbreviated as CRC). Thus far, the mechanism of NEAT1 has not been elucidated by the existing researches. The impact of knockdown of both NEAT1 and its predicted downstream miR‐193a‐3p in CRC cells was examined here to delve into their interactions and mechanisms. Additionally, the target of miR‐193a‐3p, Kirsten rat sarcoma viral oncogene homolog (abbreviated as KRAS), was also predicted by bioinformatics algorithms. Small interfering RNA and antisense oligonucleotides that inhibit NEAT1, as well as overexpression or knockdown of miR‐193a‐3p, were adequately drawn upon to confirm that NEAT1 serves as a miR‐193a‐3p sponge or competing endogenous RNA, to impact miR‐193a‐3p's further functions, including modulating KRAS proteins, both in vitro and in vivo. Generally, lncRNA NEAT1/hsa‐miR‐193a‐3p/KRAS axis was substantiated in CRC cells and could provide novel insight into both diagnostic and therapeutic advancement in CRC.
Collapse
Affiliation(s)
- Zhouting Zhu
- Department of General Surgery, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China.,State Key Laboratory of Pharmaceutical Biotechnology, NJU Advanced Institute for Life Sciences (NAILS), Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Shangce Du
- Department of General Surgery, Drum Tower Clinical Medical College of Nanjing Medical University, Nanjing, China
| | - Kai Yin
- Department of General Surgery, Taixing Hospital Affiliated to Yangzhou University, Taixing, China
| | - Shichao Ai
- Department of General Surgery, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - Mengchao Yu
- State Key Laboratory of Pharmaceutical Biotechnology, NJU Advanced Institute for Life Sciences (NAILS), Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Yanqing Liu
- State Key Laboratory of Pharmaceutical Biotechnology, NJU Advanced Institute for Life Sciences (NAILS), Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Yan Shen
- Department of General Surgery, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - Minghui Liu
- State Key Laboratory of Pharmaceutical Biotechnology, NJU Advanced Institute for Life Sciences (NAILS), Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Ruihua Jiao
- State Key Laboratory of Pharmaceutical Biotechnology, NJU Advanced Institute for Life Sciences (NAILS), Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Xi Chen
- State Key Laboratory of Pharmaceutical Biotechnology, NJU Advanced Institute for Life Sciences (NAILS), Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Wenxian Guan
- Department of General Surgery, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| |
Collapse
|
23
|
Wang HL, Hou SY, Li HB, Qiu JP, Bo L, Mao CP. Biological Function and Mechanism of Long Noncoding RNAs Nuclear-Enriched Abundant Transcript 1 in Development of Cervical Cancer. Chin Med J (Engl) 2018; 131:2063-2070. [PMID: 30127216 PMCID: PMC6111676 DOI: 10.4103/0366-6999.239308] [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: 12/18/2022] Open
Abstract
Background: Accumulating documents have demonstrated that long noncoding RNAs (lncRNAs) play critical roles in tumorigenesis. As an lncRNA, nuclear-enriched abundant transcript 1 (NEAT1) has been identified to be involved in the progression of many types of cancers. However, the biological function of NEAT1 in cervical cancer is not fully investigated. The aim of this study was to disclose the specific biological function of lncRNA NEAT1 in cervical cancer progression. Methods: Quantitative real-time polymerase chain reaction (qRT-PCR) was utilized to identify the expression of lncRNA NEAT1 in the cervical cancer tissues and cell lines. All cervical cancer samples used in this study were collected from the Affiliated Suzhou Hospital of Nanjing Medical University between September 2012 and September 2017. The correlation between NEAT1 expression and the overall survival rate of cervical cancer patients was analyzed by Kaplan-Meier analysis. The effects of NEAT1 knockdown or overexpression on cell proliferation were tested by performing MTT assays and colony formation assays. Transwell assays were conducted to detect the migratory ability of cervical cancer cells, in which NEAT1 was silenced or overexpressed. Western blotting was utilized to validate whether NEAT1 promotes cervical cancer progression through activating PI3K-Akt signaling pathway. Results: High expression of NEAT1 predicted poor prognosis of cervical cancer patients (χ2 = 0.735, P = 0.005). Knockdown of NEAT1 decreased the number of colonies in CaSki cell from 136.667 ± 13.503 to 71.667 ± 7.506 (t = −18.76, P = 0.003) and decreased the number of colonies in HeLa cell from 128.667 ± 13.317 to 65.667 ± 7.024 (t = −5.54, P = 0.031). However, overexpression of NEAT1 increased the number of colonies in SiHa cell from 84.667 ± 12.014 to 150.667 ± 18.037 (t = 7.27, P = 0.018). Knockdown of NEAT1 decreased the migratory number of CaSki cell from 100.333 ± 9.866 to 58.333 ± 5.859 (t = −8.08, P = 0.015) and reduced the migratory number in HeLa cell from 123.667 ± 12.097 to 67.667 ± 7.095 (t = −6.03, P = 0.026). Overexpression of NEAT1 increased the migratory number of SiHa cell from 127.333 ± 16.042 to 231.333 ± 31.786 (t = 4.92, P = 0.039). Conclusion: NEAT1 may exert oncogenic function in cervical cancer and serve as a novel therapeutic target for cervical cancer.
Collapse
Affiliation(s)
- Hui-Ling Wang
- Reproductive Medicine Center, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006; Department of Gynaecology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, Jiangsu 215000, China
| | - Shun-Yu Hou
- Department of Gynaecology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, Jiangsu 215000, China
| | - Hai-Bo Li
- Department of Gynaecology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, Jiangsu 215000, China
| | - Jian-Ping Qiu
- Department of Gynaecology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, Jiangsu 215000, China
| | - Le Bo
- Reproductive Medicine Center, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, China
| | - Cai-Ping Mao
- Reproductive Medicine Center, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, China
| |
Collapse
|
24
|
Klec C, Prinz F, Pichler M. Involvement of the long noncoding RNA NEAT1 in carcinogenesis. Mol Oncol 2018; 13:46-60. [PMID: 30430751 PMCID: PMC6322192 DOI: 10.1002/1878-0261.12404] [Citation(s) in RCA: 123] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Revised: 10/25/2018] [Accepted: 11/07/2018] [Indexed: 12/14/2022] Open
Abstract
Altered expression levels of the long noncoding RNA (lncRNA) nuclear‐enriched abundant transcript 1 (NEAT1) have been reported in different types of cancer. More than half of the NEAT1 studies in cancer have been published within the last 2 years. In this review, we discuss very recent developments and insights into NEAT1 contribution to carcinogenesis. Summarizing the literature, it becomes obvious that NEAT1 is a lncRNA highly de‐/upregulated in a variety of cancer entities, in which it primarily acts as a competing endogenous RNA (ceRNA) which sponges tumor‐suppressive microRNA (miRNA). The sponged miRNA lose their ability to degrade, silence, or hamper translation of their downstream—mostly oncogenic—target transcripts, ultimately promoting carcinogenesis. This role of NEAT1 function in tumorigenesis suggests it may be a prognostic biomarker as well as potential therapeutic target, pending the completion of further studies into the underlying mechanisms.
Collapse
Affiliation(s)
- Christiane Klec
- Division of Oncology, Department of Internal Medicine, Medical University of Graz (MUG), Austria.,Research Unit for Non-coding RNAs and Genome Editing, Medical University of Graz (MUG), Austria
| | - Felix Prinz
- Division of Oncology, Department of Internal Medicine, Medical University of Graz (MUG), Austria.,Research Unit for Non-coding RNAs and Genome Editing, Medical University of Graz (MUG), Austria
| | - Martin Pichler
- Division of Oncology, Department of Internal Medicine, Medical University of Graz (MUG), Austria.,Research Unit for Non-coding RNAs and Genome Editing, Medical University of Graz (MUG), Austria.,Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| |
Collapse
|
25
|
Dong P, Xiong Y, Yue J, Hanley SJB, Kobayashi N, Todo Y, Watari H. Long Non-coding RNA NEAT1: A Novel Target for Diagnosis and Therapy in Human Tumors. Front Genet 2018; 9:471. [PMID: 30374364 PMCID: PMC6196292 DOI: 10.3389/fgene.2018.00471] [Citation(s) in RCA: 165] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Accepted: 09/24/2018] [Indexed: 12/13/2022] Open
Abstract
The nuclear paraspeckle assembly transcript 1 (NEAT1, a long non-coding RNA) is frequently overexpressed in human tumors, and higher NEAT1 expression is correlated with worse survival in cancer patients. NEAT1 drives tumor initiation and progression by modulating the expression of genes involved in the regulation of tumor cell growth, migration, invasion, metastasis, epithelial-to-mesenchymal transition, stem cell-like phenotype, chemoresistance and radioresistance, indicating the potential for NEAT1 to be a novel diagnostic biomarker and therapeutic target. Mechanistically, NEAT1 functions as a scaffold RNA molecule by interacting with EZH2 (a subunit of the polycomb repressive complex) to influence the expression of downstream effectors of EZH2, it also acts as a microRNA (miRNA) sponge to suppress the interactions between miRNAs and target mRNAs, and affects the expression of miR-129 by promoting the DNA methylation of the miR-129 promoter region. Knockdown of NEAT1 via small interfering RNA or short hairpin RNA inhibits the malignant behavior of tumor cells. In this review, we highlight the latest insights into the expression pattern, biological roles and mechanisms underlying the function and regulation of NEAT1 in tumors, and especially focus on its clinical implication as a new diagnostic biomarker and an attractive therapeutic target for cancers.
Collapse
Affiliation(s)
- Peixin Dong
- Department of Obstetrics and Gynecology, Hokkaido University School of Medicine, Hokkaido University, Sapporo, Japan
| | - Ying Xiong
- State Key Laboratory of Oncology in South China, Department of Gynecology, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Junming Yue
- Department of Pathology and Laboratory Medicine, University of Tennessee Health Science Center, Memphis, TN, United States.,Center for Cancer Research, University of Tennessee Health Science Center, Memphis, TN, United States
| | - Sharon J B Hanley
- Department of Obstetrics and Gynecology, Hokkaido University School of Medicine, Hokkaido University, Sapporo, Japan
| | - Noriko Kobayashi
- Department of Obstetrics and Gynecology, Hokkaido University School of Medicine, Hokkaido University, Sapporo, Japan
| | - Yukiharu Todo
- Division of Gynecologic Oncology, National Hospital Organization, Hokkaido Cancer Center (NHO), Sapporo, Japan
| | - Hidemichi Watari
- Department of Obstetrics and Gynecology, Hokkaido University School of Medicine, Hokkaido University, Sapporo, Japan
| |
Collapse
|
26
|
Zhang L, Lu X, Zhou X, Liu Q, Chen L, Cai F. NEAT1 induces osteosarcoma development by modulating the miR‐339‐5p/TGF‐β1 pathway. J Cell Physiol 2018; 234:5097-5105. [PMID: 30203547 DOI: 10.1002/jcp.27313] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Accepted: 08/02/2018] [Indexed: 12/24/2022]
Affiliation(s)
- Lin Zhang
- Department of Orthopaedic Surgery The First Affiliated Hospital of Soochow University Suzhou China
- Department of Orthopaedic Surgery Huai’an Second Hospital and The Affiliated Hospital of Xuzhou Medical University Huai’an China
| | - Xiao‐Qing Lu
- Department of Orthopaedic Surgery Huai’an Second Hospital and The Affiliated Hospital of Xuzhou Medical University Huai’an China
| | - Xiao‐Qing Zhou
- Department of Orthopaedic Surgery Huai’an Second Hospital and The Affiliated Hospital of Xuzhou Medical University Huai’an China
| | - Qin‐Bai Liu
- Department of Orthopedics Lian Shui People’s Hospital Lianshui China
| | - Liang Chen
- Department of Orthopaedic Surgery The First Affiliated Hospital of Soochow University Suzhou China
| | - Feng Cai
- Department of Orthopaedic Surgery The First Affiliated Hospital of Soochow University Suzhou China
| |
Collapse
|
27
|
Liu G, Yuan D, Sun P, Liu W, Wu PF, Liu H, Yu GY. LINC00968 functions as an oncogene in osteosarcoma by activating the PI3K/AKT/mTOR signaling. J Cell Physiol 2018; 233:8639-8647. [PMID: 29904919 DOI: 10.1002/jcp.26624] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Accepted: 03/28/2018] [Indexed: 12/20/2022]
Abstract
Osteosarcoma is recognized as a malignant tumor in the skeletal system. Long non-coding RNAs (lncRNAs) have been exhibited to play crucial roles in osteosarcoma development. Our current study focused on the biological effects and mechanism of LINC00968 in osteosarcoma pathogenesis. We observed that LINC00968 was dramatically elevated in osteosarcoma cells including U2OS, MG63, Saos-2, SW1353, and 143-B cells compared to human osteoblast cell line hFOB. Silence of LINC00968 inhibited osteosarcoma cell growth and proliferation in vitro. Reversely, overexpression of LINC00968 promoted osteosarcoma cell survival and cell colony formation ability in Saos-2 and 143-B cells. In addition, LINC00968 was able to induce osteosarcoma cell migration and invasion through up-regulating MMP-2 and MMP-9 protein levels. The phosphoinosmde-3-kinase/Protein Kinase B/mammalian target of rapamycin (PI3K/AKT/mTOR) pathway has been reported to participate in several cancer types. Here, in our study, we found that PI3K/AKT/mTOR pathway was involved in osteosarcoma progression. Knockdown of LINC00968 inactivated PI3K/AKT/mTOR signaling pathway in vitro. Subsequently, in vivo tumor xenografts were established using 143-B cells to investigate whether LINC00968 can induce osteosarcoma development in vivo. Consistently, it was indicated that inhibition of LINC00968 significantly inhibited osteosarcoma progression in vivo. Taken these together, in our research, LINC00968 could be provided as a novel prognostic biomarker and therapeutic target in osteosarcoma diagnosis and treatment.
Collapse
Affiliation(s)
- Gang Liu
- Department of Orthopedics, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, China
| | - Dongtang Yuan
- Department of Orthopedics, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, China
| | - Peng Sun
- Department of Orthopedics, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, China
| | - Weidong Liu
- Department of Orthopedics, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, China
| | - Peng-Fei Wu
- Department of Orthopedics, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, China
| | - Huan Liu
- Department of Orthopedics, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, China
| | - Guang-Yang Yu
- Department of Orthopedics, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, China
| |
Collapse
|