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Xiao Y, Hu Y, Liu S. Non-coding RNAs: a promising target for early metastasis intervention. Chin Med J (Engl) 2023; 136:2538-2550. [PMID: 37442775 PMCID: PMC10617820 DOI: 10.1097/cm9.0000000000002619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Indexed: 07/15/2023] Open
Abstract
ABSTRACT Metastases account for the overwhelming majority of cancer-associated deaths. The dissemination of cancer cells from the primary tumor to distant organs involves a complex process known as the invasion-metastasis cascade. The underlying biological mechanisms of metastasis, however, remain largely elusive. Recently, the discovery and characterization of non-coding RNAs (ncRNAs) have revealed the diversity of their regulatory roles, especially as key contributors throughout the metastatic cascade. Here, we review recent progress in how three major types of ncRNAs (microRNAs, long non-coding RNAs, and circular RNAs) are involved in the multistep procedure of metastasis. We further examine interactions among the three ncRNAs as well as current progress in their regulatory mechanisms. We also propose the prevention of metastasis in the early stages of cancer progression and discuss current translational studies using ncRNAs as targets for metastasis diagnosis and treatments. These studies provide insights into developing more effective strategies to target metastatic relapse.
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Affiliation(s)
- Yi Xiao
- Department of Stomatology, Changhai Hospital, Naval Medical University, Shanghai 200433, China
| | - Yijun Hu
- Clinical Research Center, Changhai Hospital, Naval Medical University, Shanghai 200433, China
| | - Shanrong Liu
- Department of Laboratory Diagnostics, Changhai Hospital, Naval Medical University, Shanghai 200433, China
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2
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Zhu P, Pei Y, Yu J, Ding W, Yang Y, Liu F, Liu L, Huang J, Yuan S, Wang Z, Gu F, Pan Z, Chen J, Qiu J, Liu H. High-throughput sequencing approach for the identification of lncRNA biomarkers in hepatocellular carcinoma and revealing the effect of ZFAS1/miR-150-5p on hepatocellular carcinoma progression. PeerJ 2023; 11:e14891. [PMID: 36855431 PMCID: PMC9968462 DOI: 10.7717/peerj.14891] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 01/23/2023] [Indexed: 02/25/2023] Open
Abstract
Aims To screen abnormal lncRNAs and diagnostic biomarkers in the progression of hepatocellular carcinoma through high-throughput sequencing and explore the underlying mechanisms of abnormal lncRNAs in the progression of hepatocellular carcinoma. Methods The transcriptome sequencing was used to analyze the RNA expression profile and identify differentially expressed RNAs. Hub lncRNAs were screened by combining (WGCNA, ceRNA regulatory network, PPI, GO and KEGG analyses, Kaplan-Meier curve analysis, Cox analysis, risk model construction and qPCR). Thereafter, the correlation between the expression of hub lncRNAs and tumor clinicopathological parameters was analyzed, and the hub lncRNAs were analyzed by GSEA. Finally, the effects of hub RNAs on the proliferation, migration and invasion of HepG2 cells were investigated in vitro. Results Compared with the control group, a total of 610 lncRNAs, 2,593 mRNAs and 26 miRNAs were screened in patients with hepatocellular carcinoma. Through miRNA target prediction and WGCNA, a ceRNA was constructed, comprising 324 nodes and 621 edges. Enrichment analysis showed that mRNAs in ceRNA were involved mainly in cancer development progression. Then, the ZFAS1/miR-150-5p interaction pair was screened out by Kaplan Meier curve analysis, Cox analysis and qPCR analysis. Its expression was related to tumor stage, TNM stage and patient age. ROC curve analysis showed that it has a good predictive value for the risk of hepatocellular carcinoma. GSEA showed that ZFAS1 was also enriched in the regulation of immune response, cell differentiation and proliferation. Loss-of-function experiments revealed that ZFAS1 inhibition could remarkably suppress HepG2 cell proliferation, migration and invasion in vitro. Bioinformatic analysis and luciferase reporter assays revealed that ZFAS1 directly interacted with miR-150-5p. Rescue experiments showed that a miR-150-5p inhibitor reversed the cell proliferation, migration and invasion functions of ZFAS1 knockdown in vitro. Conclusion ZFAS1 is associated with the malignant status and prognosis of patients with hepatocellular carcinoma, and the ZFAS1/miR-150-5p axis is involved in hepatocellular carcinoma progression.
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Affiliation(s)
- Peng Zhu
- Department of Hepatic Surgery (III), The Third Affiliated Hospital of Naval Medical University, Shanghai, China
| | - Yongyan Pei
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan, Guangdong, China
| | - Jian Yu
- Department of General Surgery, The Third Affiliated Hospital of Naval Medical University, Shanghai, China
| | - Wenbin Ding
- Department of Hepatic Surgery (III), The Third Affiliated Hospital of Naval Medical University, Shanghai, China
| | - Yun Yang
- Department of Hepatic Surgery (III), The Third Affiliated Hospital of Naval Medical University, Shanghai, China
| | - Fuchen Liu
- Department of Hepatic Surgery (III), The Third Affiliated Hospital of Naval Medical University, Shanghai, China
| | - Lei Liu
- Department of Hepatic Surgery (III), The Third Affiliated Hospital of Naval Medical University, Shanghai, China
| | - Jian Huang
- Department of Hepatic Surgery (III), The Third Affiliated Hospital of Naval Medical University, Shanghai, China
| | - Shengxian Yuan
- Department of Hepatic Surgery (III), The Third Affiliated Hospital of Naval Medical University, Shanghai, China
| | - Zongyan Wang
- Department of Hepatic Surgery (III), The Third Affiliated Hospital of Naval Medical University, Shanghai, China
| | - Fangming Gu
- Department of Hepatic Surgery (III), The Third Affiliated Hospital of Naval Medical University, Shanghai, China
| | - Zeya Pan
- Department of Hepatic Surgery (III), The Third Affiliated Hospital of Naval Medical University, Shanghai, China
| | - Jinzhong Chen
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Fudan University, Shanghai, China
| | - Jinrong Qiu
- Department of Biotherapy, The Third Affiliated Hospital of Naval Medical University, Shanghai, China
| | - Huiying Liu
- Department of Biotherapy, The Third Affiliated Hospital of Naval Medical University, Shanghai, China
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Ghafouri-Fard S, Kamali MJ, Abak A, Shoorei H, Taheri M. LncRNA ZFAS1: Role in tumorigenesis and other diseases. Biomed Pharmacother 2021; 142:111999. [PMID: 34385106 DOI: 10.1016/j.biopha.2021.111999] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 07/23/2021] [Accepted: 08/01/2021] [Indexed: 12/28/2022] Open
Abstract
Residing on chromosome 20q13.13, Zinc Finger NFX1-Type Containing 1 (ZNFX1) antisense RNA 1 (ZFAS1) is a transcript which has been primarily recognized as a modulator of differentiation of alveolar and epithelial cell in the mammary gland. This long non-coding RNA (lncRNA) partakes in the molecular cascades leading to several non-neoplastic conditions such as osteoarthritis, epilepsy, rheumatoid arthritis, atherosclerosis, pulmonary fibrosis, myocardial infarction, and cardiac dysfunction. More importantly, ZFAS1 is considered as an oncogene in almost all types of cancers. Using expression amounts of ZFAS1, it is possible to forecast the clinical outcome of patients with different neoplasms such as colorectal cancer, gastric cancer, cholangiocarcinoma, hepatoblastoma, and other types of cancer. We describe the role of ZFAS1 in the development of neoplastic and non-neoplastic disorders.
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Affiliation(s)
- Soudeh Ghafouri-Fard
- Department of Medical Genetics, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Atefe Abak
- Men's Health and Reproductive Health Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hamed Shoorei
- Department of Anatomical Sciences, Faculty of Medicine, Birjand University of Medical Sciences, Birjand, Iran
| | - Mohammad Taheri
- Skull Base Research Center, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Sun Y, Gao X, Li P, Song L, Shi L. LncRNA ZFAS1, as a poor prognostic indicator, promotes cell proliferation and epithelial-mesenchymal transition in endometrial carcinoma. Per Med 2020; 18:43-53. [PMID: 33151128 DOI: 10.2217/pme-2020-0014] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Background: Long noncoding RNA Zinc finger nuclear transcription factor, X-box binding 1-type containing 1 antisense RNA 1 (ZFAS1) has been reported to be an oncogene in various tumors. However, the role of ZFAS1 in endometrial carcinoma (EC) are not fully determined. Methods & results: Here, we found ZFAS1 expression was significantly upregulated in EC patients, which was significantly associated with International Federation of Gynecology and Obstetrics stage, histological grade, myometrial invasion and poor prognosis. The loss-of-function assays showed that knockdown of ZFAS1 significantly suppressed the proliferation, G1/S transition, migration and invasion in EC cells. Moreover, knockdown of ZFAS1 obviously downregulated the expression of CDK4, Cyclin D1 and N-cadherin, but upregulated E-cadherin expression. Conclusion: Collectively, these results suggest that ZFAS1 might be used as potential therapeutic targets for EC treatment.
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Affiliation(s)
- Yanan Sun
- Department of Gynecology, The Second Affiliated Hospital Harbin Medical University, Harbin, Heilongjiang, PR China.,Department of Gynecology & Obstetrics, Daqing Oilfield General Hospital, Daqing, Heilongjiang, PR China
| | - Xuan Gao
- Department of Gynecology & Obstetrics, Daqing Oilfield General Hospital, Daqing, Heilongjiang, PR China
| | - Peiling Li
- Department of Gynecology, The Second Affiliated Hospital Harbin Medical University, Harbin, Heilongjiang, PR China
| | - Ling Song
- Department of Gynecology & Obstetrics, Daqing Oilfield General Hospital, Daqing, Heilongjiang, PR China
| | - Lei Shi
- Department of Gynecology & Obstetrics, Daqing Oilfield General Hospital, Daqing, Heilongjiang, PR China
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Zhu T, Wang Z, Wang G, Hu Z, Ding H, Li R, Sun J. Long non-coding RNA ZFAS1 promotes the expression of EPAS1 in gastric cardia adenocarcinoma. J Adv Res 2020; 28:7-15. [PMID: 33364040 PMCID: PMC7753234 DOI: 10.1016/j.jare.2020.06.006] [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: 11/22/2019] [Revised: 06/08/2020] [Accepted: 06/08/2020] [Indexed: 12/14/2022] Open
Abstract
LncRNA (Long non-coding RNA) ZFAS1 (zinc finger antisense 1) functions as the oncogene in multiple cancers, including gastric cancer. However, its function and underlying mechanism in the GCA (gastric cardia adenocarcinoma), the most aggressive type of gastric cancer, remain unknown. We demonstrated here that the LncRNA ZFAS1 was up-regulated in GCA tissues. Furthermore, the elevated level of ZFAS1 was significantly associated with the GCA metastasis and cancer recurrence. It was also demonstrated to be an independent prognostic indicator of disease-free survival and overall survival for GCA patients. RNA sequencing showed that the up-regulated ZFAS1 was tightly associated with the down-regulated hypoxia inducible factor 1 (HIF1) and up-regulated EPAS1 (Endothelial PAS domain protein 1, also known as HIF2). In vitro studies showed that the ZFAS1 could bind to EPAS1, enhance its abilities to epigenetically silence the HIF1, and promote its own expression in GCA cell lines. In the animal model, co-delivering the EPAS1 and the ZFAS1 antisense oligos could significantly boost up their therapeutic effects on tumor growth. Thus, targeting ZFAS1 and EPAS1 might be an alternative therapeutic option in GCA.
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Affiliation(s)
- Tianyu Zhu
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, PR China
| | - Zhuoyin Wang
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, PR China
| | - Guojun Wang
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, PR China
| | - Zhihao Hu
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, PR China
| | - Hengxuan Ding
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, PR China
| | - Ruixin Li
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, PR China
| | - Junfeng Sun
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, PR China
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Gan S, Ma P, Ma J, Wang W, Han H, Chen L, Li X, Wu F, Sun H. Knockdown of ZFAS1 suppresses the progression of acute myeloid leukemia by regulating microRNA-150/Sp1 and microRNA-150/Myb pathways. Eur J Pharmacol 2019; 844:38-48. [PMID: 30502345 DOI: 10.1016/j.ejphar.2018.11.036] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Revised: 11/22/2018] [Accepted: 11/27/2018] [Indexed: 12/25/2022]
Abstract
Leukemia is the most frequent malignancy in children with acute myeloid leukemia (AML) as the second commonest type. Long non-coding RNA zinc finger antisense 1 (ZFAS1) has been widely reported as an oncogenic factor in multiple malignancies including AML. However, the roles and molecular mechanisms of ZFAS1 in the tumorigenesis of AML are poor defined till now. In the present study, RT-qPCR assay showed that ZFAS1 was highly expressed in bone marrow of acute leukemia patients and AML cell lines. Loss-of-function analyses revealed that ZFAS1 knockdown inhibited proliferation and promoted apoptosis in AML cells and curbed AML xenograft growth in vivo. Bioinformatics analysis and luciferase reporter assay unveiled that microRNA-150 (miR-150) could interact with ZFAS1, Myb 3' UTR and Sp1 3' UTR. Moreover, ZFAS1 acted as a molecular sponge of miR-150, giving rise to the downregulation of miR-150 level and upregulation of Myb and Sp1 levels. Moreover, miR-150 overexpression resulted in the reduction of AML cell proliferative ability and the increase of cell apoptotic rate. Additionally, the inhibition of miR-150 abrogated ZFAS1 loss-mediated anti-leukemia effects. In summary, our data demonstrated that ZFAS1 knockdown hampered AML progression by regulating miR-150/Myb and miR-150/Sp1 pathways, providing some potential biomarkers or targets for the diagnosis and treatment of leukemia.
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Affiliation(s)
- Silin Gan
- Department of Hematology, the First Affiliated Hospital of Zhengzhou University, No.1, East Jianshe Road, Zhengzhou City, 450052, Henan, China
| | - Ping Ma
- Department of Hematology, the First Affiliated Hospital of Zhengzhou University, No.1, East Jianshe Road, Zhengzhou City, 450052, Henan, China
| | - Jie Ma
- Department of Hematology, the First Affiliated Hospital of Zhengzhou University, No.1, East Jianshe Road, Zhengzhou City, 450052, Henan, China
| | - Weimin Wang
- Department of Hematology, the First Affiliated Hospital of Zhengzhou University, No.1, East Jianshe Road, Zhengzhou City, 450052, Henan, China
| | - Haohao Han
- Department of Hematology, the First Affiliated Hospital of Zhengzhou University, No.1, East Jianshe Road, Zhengzhou City, 450052, Henan, China
| | - Li Chen
- Department of Hematology, the First Affiliated Hospital of Zhengzhou University, No.1, East Jianshe Road, Zhengzhou City, 450052, Henan, China
| | - Xue Li
- Department of Hematology, the First Affiliated Hospital of Zhengzhou University, No.1, East Jianshe Road, Zhengzhou City, 450052, Henan, China
| | - Feifei Wu
- Department of Hematology, the First Affiliated Hospital of Zhengzhou University, No.1, East Jianshe Road, Zhengzhou City, 450052, Henan, China.
| | - Hui Sun
- Department of Hematology, the First Affiliated Hospital of Zhengzhou University, No.1, East Jianshe Road, Zhengzhou City, 450052, Henan, China.
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7
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He A, He S, Li X, Zhou L. ZFAS1: A novel vital oncogenic lncRNA in multiple human cancers. Cell Prolif 2018; 52:e12513. [PMID: 30288832 PMCID: PMC6430496 DOI: 10.1111/cpr.12513] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Accepted: 06/13/2018] [Indexed: 12/16/2022] Open
Abstract
Long noncoding RNAs (lncRNAs) are a class of noncoding, endogenous, single‐stranded RNAs longer than 200 nucleotides in length that are transcribed by RNA polymerase II. Mounting evidence has indicated that lncRNAs play key roles in several physiological and pathological processes by modifying gene expression at the transcriptional, posttranscriptional, epigenetic, and translation levels. Many reports have demonstrated that lncRNAs function as potential oncogene or tumour suppressors and thus play vital regulatory roles in tumourigenesis and tumour progression. ZNFX1 antisense RNA 1 (ZFAS1), a novel lncRNA transcribed in the antisense orientation of zinc finger NFX1‐type containing 1(ZNFX1), was found to be increased in multiple cancers, such as gastric cancer and hepatocellular carcinoma, contributing to cancer development and progression. In the present review, we summarized recent progression on study of the functions and underlying molecular mechanisms of ZFAS1 related to occurrence and development of multiple cancers.
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Affiliation(s)
- Anbang He
- Department of Urology, The Institute of Urology, Peking University First Hospital, Peking University, National Urological Cancer Centre, Beijing, 100034, China
| | - Shiming He
- Department of Urology, The Institute of Urology, Peking University First Hospital, Peking University, National Urological Cancer Centre, Beijing, 100034, China
| | - Xuesong Li
- Department of Urology, The Institute of Urology, Peking University First Hospital, Peking University, National Urological Cancer Centre, Beijing, 100034, China
| | - Liqun Zhou
- Department of Urology, The Institute of Urology, Peking University First Hospital, Peking University, National Urological Cancer Centre, Beijing, 100034, China
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8
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An Q, Zhou L, Xu N. Long noncoding RNA FOXD2-AS1 accelerates the gemcitabine-resistance of bladder cancer by sponging miR-143. Biomed Pharmacother 2018; 103:415-420. [PMID: 29674277 DOI: 10.1016/j.biopha.2018.03.138] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Revised: 03/21/2018] [Accepted: 03/22/2018] [Indexed: 01/11/2023] Open
Abstract
Increasing evidences have proved that long noncoding RNAs (lncRNAs) modulate the tumorigenesis of bladder cancer involved in multiple pathophysiological processes. In the study, we investigate the role of lncRNA FOXD2-AS1 in the gemcitabine (GEM) resistant bladder cancer and explore its potential mechanism. Results showed that lncRNA FOXD2-AS1 was high-expressed in gemcitabine-resistant bladder cancer cells. In vitro experiments, FOXD2-AS1 knockdown suppressed the 50% inhibitive concentration (IC50) of gemcitabine, drug-resistance related genes (MDR1, MRP2, LRP1) expression, invasion and ABCC3 protein expression in gemcitabine-resistant bladder cancer cells (T24/GEM, 5637/GEM). In vivo of xenograft assay, FOXD2-AS1 knockdown inhibited the tumor growth of bladder cancer cells. Bioinformatics program and validation experiments confirmed that FOXD2-AS1 positively regulated ABCC3 protein through targeting miR-143, acting as a competing endogenous RNA (ceRNA). In summary, our results revealed the vital roles of FOXD2-AS1/miR-143/ABCC3 axis in gemcitabine resistance of bladder cancer cells, providing a novel therapeutic strategy for bladder cancer.
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MESH Headings
- Animals
- Antimetabolites, Antineoplastic/pharmacology
- Antimetabolites, Antineoplastic/therapeutic use
- Cell Line, Tumor
- Deoxycytidine/analogs & derivatives
- Deoxycytidine/pharmacology
- Deoxycytidine/therapeutic use
- Dose-Response Relationship, Drug
- Drug Resistance, Neoplasm/drug effects
- Drug Resistance, Neoplasm/physiology
- Humans
- Mice
- Mice, Inbred BALB C
- Mice, Nude
- MicroRNAs/genetics
- MicroRNAs/metabolism
- RNA, Long Noncoding/genetics
- RNA, Long Noncoding/metabolism
- Urinary Bladder Neoplasms/drug therapy
- Urinary Bladder Neoplasms/genetics
- Urinary Bladder Neoplasms/metabolism
- Xenograft Model Antitumor Assays/methods
- Gemcitabine
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Affiliation(s)
- Qing An
- Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, 210009, Jiangsu, China.
| | - Liyang Zhou
- Department of Respiratory Medicine, Huai'an Second People's Hospital of Jiangsu, Huai'an, 223200, Jiangsu, China
| | - Nan Xu
- Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, 210009, Jiangsu, China
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Wang JS, Liu QH, Cheng XH, Zhang WY, Jin YC. The long noncoding RNA ZFAS1 facilitates bladder cancer tumorigenesis by sponging miR-329. Biomed Pharmacother 2018; 103:174-181. [DOI: 10.1016/j.biopha.2018.04.031] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Revised: 03/29/2018] [Accepted: 04/05/2018] [Indexed: 01/07/2023] Open
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10
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ZFAS1 functions as an oncogenic long non-coding RNA in bladder cancer. Biosci Rep 2018; 38:BSR20180475. [PMID: 29678899 PMCID: PMC6048211 DOI: 10.1042/bsr20180475] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 04/17/2018] [Accepted: 04/20/2018] [Indexed: 12/19/2022] Open
Abstract
Long non-coding RNA (lncRNA) ZFAS1 (zinc finger antisense 1) has been suggested to have an oncogenic role in the tumorigenesis of human malignant tumors. However, the expression status and biological function of ZFAS1 in bladder cancer is still unknown. Thus, the purpose of the present study is to explore the clinical value of ZFAS1 in bladder cancer patients, and the biological function of ZFAS1 in bladder cancer cell. In the present study, we found ZFAS1 expression was increased in bladder cancer tissues compared with paired adjacent normal tissues through analyzing the Cancer Genome Atlas (TCGA) database. Furthermore, we confirmed that levels of ZFAS1 expression were elevated in bladder cancer tissues and cell lines compared with normal bladder tissues and normal uroepithelium cell line, respectively. Then, we observed that the expression level of ZFAS1 was positively associated with clinical stag, muscularis invasion, lymph node metastasis, and distant metastasis in bladder cancer patients. The experiments in vitro suggested that knockdown of ZFAS1 repressed bladder cancer cell proliferation via up-regulating KLF2 and NKD2 expression, and inhibited cell migration and invasion via down-regulating ZEB1 and ZEB2 expression. In conclusion, ZFAS1 is overexpressed in bladder cancer, and functions as an oncogenic lncRNA in regulating bladder cancer cell proliferation, migration, and invasion.
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Affiliation(s)
- Francisco J Alvarado
- From the Department of Medicine, Division of Cardiovascular Medicine, University of Wisconsin School of Medicine and Public Health, Madison
| | - Carmen R Valdivia
- From the Department of Medicine, Division of Cardiovascular Medicine, University of Wisconsin School of Medicine and Public Health, Madison
| | - Héctor H Valdivia
- From the Department of Medicine, Division of Cardiovascular Medicine, University of Wisconsin School of Medicine and Public Health, Madison.
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