1
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Wang J, Zhang Y, Li Z. Advancements in Understanding the Role of Circular RNA in Osteosarcoma. Mol Biotechnol 2024; 66:2157-2167. [PMID: 37661210 DOI: 10.1007/s12033-023-00838-4] [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: 02/06/2023] [Accepted: 07/24/2023] [Indexed: 09/05/2023]
Abstract
Osteosarcoma, the most prevalent primary malignant bone tumor and the third most frequent cancer in children and adolescents worldwide, still poses a significant therapeutic challenge. Even though combined chemotherapy and surgical resection have improved survival rates up to 60%, the prognosis for most patients with metastatic osteosarcoma continues to be dismal. The specific pathogenesis and key regulators of tumor invasion and metastasis remain largely elusive. Circular RNAs (circRNAs), novel endogenous non-coding RNA molecules that form covalently closed continuous loops through splicing, play a crucial role in the development, progression, clinical diagnosis, and treatment of various diseases. Recently, an escalating number of circular structures have been identified in osteosarcoma. Understanding their role in osteosarcoma is advantageous for early detection, diagnosis, and treatment of this disease. The primary function of circRNA involves its unique ability to bind specifically to miRNA, although their biological functions also extend to interacting with proteins, regulating gene transcription, and serving as translation templates. In this review, we explore the mechanisms and clinical applications of circRNAs in the pathogenesis and progression of osteosarcoma, with a particular emphasis on the regulatory mechanisms and functions of circRNAs as miRNA sponges in osteosarcoma development.
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Affiliation(s)
- Jin Wang
- Department of Orthopedics, Wuwei People's Hospital, Xuanwu Street, Liangzhou District, Wuwei, Gansu, 730030, People's Republic of China
| | - Yan Zhang
- Department of Outpatient, Liangzhou District Huangyang Hospital, Wuwei, Gansu, 733000, People's Republic of China
| | - Zicai Li
- Department of Orthopedics, Wuwei People's Hospital, Xuanwu Street, Liangzhou District, Wuwei, Gansu, 730030, People's Republic of China.
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2
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Hu S, Han X, Liu G, Wang S. LncRNAs as potential prognosis/diagnosis markers and factors driving drug resistance of osteosarcoma, a review. Front Endocrinol (Lausanne) 2024; 15:1415722. [PMID: 39015175 PMCID: PMC11249743 DOI: 10.3389/fendo.2024.1415722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Accepted: 06/17/2024] [Indexed: 07/18/2024] Open
Abstract
Osteosarcoma is a common malignancy that often occurs in children, teenagers and young adults. Although the treatment strategy has improved, the results are still poor for most patients with metastatic or recurrent osteosarcomas. Therefore, it is necessary to identify new and effective prognostic biomarkers and therapeutic targets for diseases. Human genomes contain lncRNAs, transcripts with limited or insufficient capacity to encode proteins. They have been implicated in tumorigenesis, particularly regarding the onset, advancement, resistance to treatment, recurrence and remote dissemination of malignancies. Aberrant lncRNA expression in osteosarcomas has been reported by numerous researchers; lncRNAs have the potential to exhibit either oncogenic or tumor-suppressing behaviors and thus, to govern the advancement of this skeletal cancer. They are suspected to influence osteosarcoma cell growth, replication, invasion, migration, remote dissemination and programmed cell death. Additionally, they have been recognized as clinical markers, and may participate in the development of multidrug resistance. Therefore, the study of lncRNAs in the growth, metastasis, treatment and prognosis of osteosarcoma is very important for the active prevention and treatment of osteosarcoma. Consequently, this work reviews the functions of lncRNAs.
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Affiliation(s)
- Siwang Hu
- The Orthopedic Center, Wenling First People’s Hospital (The Affiliated Wenling Hospital of Wenzhou Medical University), Wenling, China
| | - Xuebing Han
- Hunan Provincial Engineering Research Center of Applied Microbial Resources Development for Livestock and Poultry, College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, China
| | - Gang Liu
- Hunan Provincial Engineering Research Center of Applied Microbial Resources Development for Livestock and Poultry, College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, China
| | - Shuangshuang Wang
- Department of Cardiology, Wenling First People’s Hospital (The Affiliated Wenling Hospital of Wenzhou Medical University), Wenling, China
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3
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Sang W, Zhu R, Liu D, Gong M. LncRNA SPRY4‑IT1 is upregulated and promotes the proliferation of prostate cancer cells under hypoxia in vitro. Oncol Lett 2023; 25:138. [PMID: 36909367 PMCID: PMC9996607 DOI: 10.3892/ol.2023.13724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Accepted: 12/21/2022] [Indexed: 02/19/2023] Open
Abstract
The incidence and mortality rate of prostate cancer are among the highest for all cancers worldwide; this disease has a high cancer mortality rate in males, following lung cancer. Sprouty4-intron 1 (SPRY4-IT1) has been shown to play a variety of roles in tumors. Our previous study demonstrated that SPRY4-IT1 sponges microRNA-101-3p to promote the proliferation and metastasis of bladder cancer cells by upregulating enhancer of zeste homolog 2 expression; however, the role of SPRY4-IT1 in prostate cancer has not been fully established. In the present study, the expression levels, effects and mechanism of action of SPRY4-IT1 were investigated in prostate cancer tissues and cell lines using reverse transcription-quantitative PCR, western blotting, Cell Counting Kit-8 and flow cytometry assays. The results indicated that SPRY4-IT1 expression was upregulated in prostate cancer tissues and cell lines. Furthermore, hypoxia increased the expression levels of SPRY4-IT1 in prostate cancer cells. Knockdown of SPRY4-IT1 expression led to S-phase arrest, decreased expression levels of the cell cycle-associated proteins CDK2 and cyclin D1. AKT phosphorylation was also reduced by SPRY4-IT1 knockdown. In summary, the findings indicate the elevation of SPRY4-IT1 expression in prostate cancer. Under hypoxic conditions in vitro, SPRY4-IT1 overexpression promoted prostate cancer cell proliferation via a mechanism involving regulation of the cell cycle and the PI3K/AKT signaling pathway. Therefore, it may provide a basis for the development of targeted therapies.
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Affiliation(s)
- Weicong Sang
- Department of Urology, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai 201399, P.R. China
| | - Rujian Zhu
- Department of Urology, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai 201399, P.R. China
| | - Dong Liu
- Department of Urology, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai 201399, P.R. China
| | - Min Gong
- Department of Urology, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai 201399, P.R. China
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Wang G, Zhang Q, Wang Q, Wang J, Chen L, Sun Q, Miao D. Long non-coding RNA DUXAP10 exerts oncogenic properties in osteosarcoma by recruiting HuR to enhance SOX18 mRNA stability. Hum Cell 2022; 35:1939-1951. [PMID: 36053455 PMCID: PMC9515053 DOI: 10.1007/s13577-022-00772-8] [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: 01/16/2022] [Accepted: 08/15/2022] [Indexed: 11/28/2022]
Abstract
Recent studies have demonstrated that several long non-coding RNAs (lncRNAs) play an important role in the occurrence and development of osteosarcoma (OS). However, more lncRNAs and their mechanisms in regulating growth and migration of OS cells remain to be investigated. In this study, we identified an lncRNA called DUXAP10 by analysis of GEO data, which was significantly up-regulated in OS tissues and cell lines. Experiments in vitro revealed that lncRNA DUXAP10 promoted proliferation, migration, and invasion of OS cells and inhibited their apoptosis. We also demonstrated that DUXAP10 promoted the formation and growth of OS by tumor formation assay. Furthermore, SOX18 was identified as a critical downstream target of DUXAP10 by transcriptome RNA-seq. Mechanistically, DUXAP10 mainly localized in cytoplasm and could specifically bind to HuR to increase the stability of SOX18 mRNA. Meanwhile, SOX18 knockdown largely reversed increased proliferation of OS cells induced by DUXAP10 overexpression. Findings from this study indicate that lncRNA DUXAP10 can act as an oncogene in osteosarcoma by binding HuR to up-regulate the expression of SOX18 at a post-transcriptional level, which may provide a new target for OS clinical diagnosis and treatment.
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Affiliation(s)
- Guantong Wang
- Department of Orthopedics, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Qian Zhang
- State Key Laboratory of Reproductive Medicine, Research Center for Bone and Stem Cells, Key Laboratory for Aging and Disease, Nanjing Medical University, Nanjing, China
| | - Qinjue Wang
- Department of Orthopedics, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Jing Wang
- State Key Laboratory of Reproductive Medicine, Research Center for Bone and Stem Cells, Key Laboratory for Aging and Disease, Nanjing Medical University, Nanjing, China
| | - Lulu Chen
- State Key Laboratory of Reproductive Medicine, Research Center for Bone and Stem Cells, Key Laboratory for Aging and Disease, Nanjing Medical University, Nanjing, China
| | - Qiang Sun
- Department of Orthopedics, Nanjing First Hospital, Nanjing Medical University, Nanjing, China.
| | - Dengshun Miao
- State Key Laboratory of Reproductive Medicine, Research Center for Bone and Stem Cells, Key Laboratory for Aging and Disease, Nanjing Medical University, Nanjing, China.
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Li C, Li X, Zhang Y, Wu L, He J, Jiang N, Zhao H, Liu W. DSCAM-AS1 promotes cervical carcinoma cell proliferation and invasion via sponging miR-338-3p. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:58906-58914. [PMID: 35378649 DOI: 10.1007/s11356-022-19962-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Accepted: 04/01/2020] [Indexed: 06/14/2023]
Abstract
Deregulated lncRNA DSCAM-AS1 expression was found in several tumors. However, mechanism and functional role of DSCAM-AS1 in cervical carcinoma remain unknown. DSCAM-AS1 was detected in cervical carcinoma specimens and cells by RT-qPCR. CCK-8, Matrigel transwell, and flow cytometry were conducted to determine cell functions. In this research, we firstly we explored DSCAM-AS1 expression in cervical carcinoma cells and specimens. We revealed that DSCAM-AS1 was upregulated in cervical carcinoma lines (C4-1, Caski, Hela, and Siha) compared to GH329 cells. DSCAM-AS1 was upregulated in cervical carcinoma specimens compared to control no-tumor specimens. Overexpression of DSCAM-AS1 induced cervical carcinoma cell growth and cycle. Moreover, our data revealed that miR-338-3p expression was downregulated in cervical carcinoma cells and specimens. There was a negative correlation between miR-338-3p expression and DSCAM-AS1 expression in cervical carcinoma specimens. Elevated expression of miR-338-3p decreased cervical carcinoma cell growth and cycle and invasion. Furthermore, luciferase reporter analysis revealed that miR-338-3p overexpression suppressed luciferase activity of WT-DSCAM-AS1 vector but not the mut-DSCAM-AS1. Ectopic expression of DSCAM-AS1 decreased miR-338-3p expression in the Siha cell. Overexpression of DSCAM-AS1 promoted cervical carcinoma cell growth and cycle via regulating miR-338-3p. These results suggested that DSCAM-AS1 functions as one oncogene through sponging miR-338-3p in cervical carcinoma.
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Affiliation(s)
- Chunmei Li
- International Medical Center, Guangdong Second Provincial General Hospital, Guangzhou, 510317, China.
- Department of Traditional Chinese Medicine, Guangdong Second Provincial General Hospital, Guangzhou, 510317, China.
| | - Xiaoqiong Li
- International Medical Center, Guangdong Second Provincial General Hospital, Guangzhou, 510317, China
- Department of Traditional Chinese Medicine, Guangdong Second Provincial General Hospital, Guangzhou, 510317, China
| | - Yi Zhang
- Department of Traditional Chinese Medicine, Guangdong Second Provincial General Hospital, Guangzhou, 510317, China
- Department of Gynecology, Guangdong Second Provincial General Hospital, Guangzhou, 510317, China
| | - Liangzhi Wu
- International Medical Center, Guangdong Second Provincial General Hospital, Guangzhou, 510317, China
- Department of Traditional Chinese Medicine, Guangdong Second Provincial General Hospital, Guangzhou, 510317, China
| | - Jingjun He
- International Medical Center, Guangdong Second Provincial General Hospital, Guangzhou, 510317, China
- Department of Traditional Chinese Medicine, Guangdong Second Provincial General Hospital, Guangzhou, 510317, China
| | - Nan Jiang
- Department of Traditional Chinese Medicine, Guangdong Second Provincial General Hospital, Guangzhou, 510317, China
- Department of Gynecology, Guangdong Second Provincial General Hospital, Guangzhou, 510317, China
| | - Hui Zhao
- Department of Traditional Chinese Medicine, Guangdong Second Provincial General Hospital, Guangzhou, 510317, China
- Department of Gynecology, Guangdong Second Provincial General Hospital, Guangzhou, 510317, China
| | - Wenwen Liu
- Department of Traditional Chinese Medicine, Guangdong Second Provincial General Hospital, Guangzhou, 510317, China
- Department of Gynecology, Guangdong Second Provincial General Hospital, Guangzhou, 510317, China
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6
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lncRNA DARS-AS1 Promoted Osteosarcoma Progression through Regulating miR-532-3p/CCR7. DISEASE MARKERS 2022; 2022:4660217. [PMID: 35422889 PMCID: PMC9005325 DOI: 10.1155/2022/4660217] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 12/29/2021] [Accepted: 01/07/2022] [Indexed: 12/04/2022]
Abstract
Background lncRNAs have been indicated to involve in cell invasion, proliferation, and metastasis. However, function of DARS-AS1 in osteosarcoma remains poorly explored. Methods DARS-AS1 and miR-532-3p level were measured using qRT-PCR. CCK-8 assay and cell invasion assay were done to study cell functions. Luciferase reporter assay was performed to study the mechanism about DARS-AS1 and miR-532-3p. Results We firstly showed that DARS-AS1 expression is upregulated in 73.5% (25/34) of cases with osteosarcoma. Moreover, DARS-AS1 expression is overexpressed in osteosarcoma specimens than in nontumor samples. The DARS-AS1 is overexpressed in the osteosarcoma cell lines (Saos-2, SOSP-9607, U2OS, and MG-63) compared to hFOB. Overexpression of DARS-AS1 promotes cell growth and invasion in MG-63 osteosarcoma cell. DARS-AS1 plays as one sponge for miR-532-3p in osteosarcoma cell, and miR-532-3p overexpression inhibits luciferase activity of DARS-AS1-WT, not DARS-AS1-MUT in MG-63 cell. Ectopic expression of DARS-AS1 inhibits miR-532-3p expression in MG-63 cell. Furthermore, miR-532-3p expression is downregulated in osteosarcoma specimens compared to in paired nontumor samples. MiR-532-3p expression is downregulated in osteosarcoma cell lines compared to hFOB. MiR-532-3p expression is negatively associated with DARS-AS1 expression in osteosarcoma specimens. miR-532-3p directly regulates CCR7 expression in osteosarcoma cell. Elevated DARS-AS1 expression enhances cell growth and invasion via regulating CCR7. Conclusions These data firstly suggested that DARS-AS1 exerted as one oncogene in osteosarcoma partly via regulating miR-532-3p/CCR7.
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Zhang Y, Xu W, Wang Y, Li J, He G, Guan M, Zeng X, Bian W, Song Y, Liu J. Oncogenic lncRNA ZNFX1 antisense RNA 1 promotes osteosarcoma cells proliferation and metastasis by stabilizing serine and arginine‑rich splicing factor 3. Bioengineered 2022; 13:5962-5974. [PMID: 35184675 PMCID: PMC8974064 DOI: 10.1080/21655979.2022.2036900] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Recent studies have demonstrated that lncRNAs play an important role in cancers, particularly osteosarcoma. ZFAS1 is a newly identified and characterized lncRNA linked to a variety of cancers. The role of ZFAS1 in osteosarcoma is mainly unknown. This study discovered that ZFAS1 was upregulated in osteosarcoma patient tissues, which correlates with elevated SRSF3 protein levels. Higher levels of ZFAS1 or SRSF3 were linked to a poor prognosis of osteosarcoma. ZFAS1 knockdown decreased SRSF3 protein levels but had a negligible effect on SRSF3 mRNA expression. Further research indicated that ZFAS1 could bind to the SRSF3 protein directly and prevent degrading. Functional studies revealed that ZFAS1 knockdown inhibited osteosarcoma cell proliferation as measured by the CCK-8 assay, colony formation assay, and Ki-67 immunofluorescence staining. Furthermore, ZFAS1 knockdown reduced the expression of PCNA, CDK1, CDK4, and CDK6, increasing p53 and p16. IT has also been observed that ZFAS1 knockdown inhibited osteosarcoma cell migration and invasion as measured by the wound healing assay and the trans-well assay with or without Matrigel. Furthermore, exogenous SRSF3 expression in ZFAS1-depleted osteosarcoma cells restored SRSF3 expression while simultaneously inhibiting cell proliferation and metastasis. Our findings show that ZFAS1 plays an essential role in osteosarcoma progression by stabilizing the SRSF3 protein. Our study provides novel insight into the role of ZFAS1 in osteosarcoma. ZFAS1 has the potential to be used as a prognostic biomarker as well as a therapeutic target in the treatment of osteosarcoma.
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Affiliation(s)
- Yang Zhang
- Department of Orthopaedics, The Second Affiliated Hospital of Harbin Medical University, Harbin, P. R. China
| | - Wenbo Xu
- Department of Orthopaedics, The Second Affiliated Hospital of Harbin Medical University, Harbin, P. R. China
| | - Yanlong Wang
- Department of Orthopaedics, The Second Affiliated Hospital of Harbin Medical University, Harbin, P. R. China
| | - Jianming Li
- Department of Orthopaedics, The Second Affiliated Hospital of Harbin Medical University, Harbin, P. R. China
| | - Guanyi He
- Department of Orthopaedics, The Second Affiliated Hospital of Harbin Medical University, Harbin, P. R. China
| | - Mingyan Guan
- Department of Orthopaedics, The Second Affiliated Hospital of Harbin Medical University, Harbin, P. R. China
| | - Xiangyu Zeng
- Department of Orthopaedics, The Second Affiliated Hospital of Harbin Medical University, Harbin, P. R. China
| | - Wei Bian
- Department of Orthopaedics, The Second Affiliated Hospital of Harbin Medical University, Harbin, P. R. China
| | - Yan Song
- Department of Operating Room, The Second Affiliated Hospital of Harbin Medical University, Harbin, P. R. China
| | - Jianyu Liu
- Department of Orthopaedics, The Second Affiliated Hospital of Harbin Medical University, Harbin, P. R. China
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Sun R, Wang X, Sun X, Zhao B, Zhang X, Gong X, Wong SH, Chan MTV, Wu WKK. Emerging Roles of Long Non-Coding RNAs in Ankylosing Spondylitis. Front Immunol 2022; 13:790924. [PMID: 35222376 PMCID: PMC8866863 DOI: 10.3389/fimmu.2022.790924] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Accepted: 01/19/2022] [Indexed: 12/16/2022] Open
Abstract
Ankylosing spondylitis (AS) is a chronic systemic autoimmune disease characterized by inflammation, bone erosion, spur formation of the spine and the sacroiliac joints. However, the etiology and molecular pathogenesis of AS remain largely unclear. Recently, a growing number of studies showed that long non-coding RNAs (lncRNAs) played critical roles in the development and progression of autoimmune and orthopedic conditions, including AS. Studies demonstrated that a myriad of lncRNAs (e.g. H19, MEG3, LOC645166) pertinent to regulation of inflammatory signals were deregulated in AS. A number of lncRNAs might also serve as new biomarkers for the diagnosis and predicting the outcomes of AS. In this review, we summarize lncRNA profiling studies on AS and the functional roles and mechanism of key lncRNAs relevant to AS pathogenesis. We also discuss their potential values as biomarkers and druggable targets for this potentially disabling condition.
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Affiliation(s)
- Ruifu Sun
- Department Spinal of Qingdao Hospital Central, Qingdao Hospital Central, Qingdao, China
| | - Xuesong Wang
- Department Spinal of Qingdao Hospital Central, Qingdao Hospital Central, Qingdao, China
| | - Xiaohong Sun
- Department Obstetrics and Gynecology of Qingdao Hospital Central, Central Qingdao Hospital, Qingdao, China
| | - Bing Zhao
- Department Spinal of Qingdao Hospital Central, Qingdao Hospital Central, Qingdao, China
| | - Xiugong Zhang
- Department Spinal of Qingdao Hospital Central, Qingdao Hospital Central, Qingdao, China
| | - Xiaojin Gong
- Department Spinal of Qingdao Hospital Central, Qingdao Hospital Central, Qingdao, China
| | - Sunny Hei Wong
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Singapore
- State Key Laboratory of Digestive Disease and LKS Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Matthew Tak Vai Chan
- Department of Anaesthesia and Intensive Care and Peter Hung Pain Research Institute, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - William Ka Kei Wu
- State Key Laboratory of Digestive Disease and LKS Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
- Department of Anaesthesia and Intensive Care and Peter Hung Pain Research Institute, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
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Xu L, Tan Y, Xu F, Zhang Y. Long noncoding RNA ADIRF antisense RNA 1 upregulates insulin receptor substrate 1 to decrease the aggressiveness of osteosarcoma by sponging microRNA-761. Bioengineered 2022; 13:2028-2043. [PMID: 35030964 PMCID: PMC8973676 DOI: 10.1080/21655979.2021.2019872] [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: 01/01/2023] Open
Abstract
An increasing number of studies have supported the critical regulatory actions of long noncoding RNAs (lncRNAs) in osteosarcoma (OS). However, the detailed roles of adipogenesis regulatory factor-antisense RNA 1 (ADIRF-AS1) in OS have not been comprehensively described. Hence, we first detected ADIRF-AS1 expression in OS and evaluated its clinical significance. Functional experiments were then performed to determine the modulatory role of ADIRF-AS1 in OS progression. ADIRF-AS1 was found to be overexpressed in OS, and the overall survival of patients with OS who had high ADIRF-AS1 levels was shorter than that of those with low levels. ADIRF-AS1 knockdown led to restricted proliferation, migration, and invasiveness of OS cells and increased apoptosis. Additionally, ADIRF-AS1 downregulation impeded tumor growth in vivo. Mechanistically, ADIRF-AS1 acted as a competitive endogenous RNA for microRNA-761 (miR-761) that siphoned miR-761 away from its target, namely insulin receptor substrate 1 (IRS1), leading to IRS1 overexpression. Rescue experiments showed that low levels of miR-761 or restoration of IRS1 could neutralize the effects of ADIRF-AS1 ablation in OS cells. In summary, ADIRF-AS1 exacerbates the oncogenicity of the OS cells by targeting the miR-761/IRS1 axis. Our findings may aid in the advancement of lncRNA-directed therapeutics for OS.
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Affiliation(s)
- Lingling Xu
- Department of Oncology, Weifang Yidu Central Hospital, Weifang, Shandong China
| | - Yinling Tan
- Department of Orthopedics, Weifang Yidu Central Hospital, Weifang, Shandong China
| | - Fengxia Xu
- Department of Orthopedics, Weifang Yidu Central Hospital, Weifang, Shandong China
| | - Yong Zhang
- Department of Orthopedics, The Fifth People's Hospital of Jinan, Shandong China
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10
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Tang C, Liu J, Hu Q, Zeng S, Yu L. Metastatic colorectal cancer: Perspectives on long non-coding RNAs and promising therapeutics. Eur J Pharmacol 2021; 908:174367. [PMID: 34303661 DOI: 10.1016/j.ejphar.2021.174367] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 07/15/2021] [Accepted: 07/21/2021] [Indexed: 01/06/2023]
Abstract
Metastatic colorectal cancer (mCRC) has long been lethal despite the continuous efforts of researchers worldwide to discover and improve therapeutic regimens. Thanks to the emergence of long non-coding RNAs (lncRNAs), which has strongly reshaped our inherent perspectives on the pathophysiological patterns of disease, research in the field has been reinvigorated. Here, we focus on current understanding of the modes of action of lncRNAs, and review their regulatory roles in metastatic colorectal cancer, and discuss correlated potential lncRNA-based therapeutics. All of the discussed studies share clear and promising perspectives on future diagnostic and therapeutic remedies for metastatic colorectal cancer.
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Affiliation(s)
- Chunyuan Tang
- Institute of Drug Metabolism and Pharmaceutical Analysis, Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang, 310058, China
| | - Junqing Liu
- The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310022, China
| | - Qingqing Hu
- The Fourth Affiliated Hospital, School of Medicine, Zhejiang University, Jinhua, 322023, China
| | - Su Zeng
- Institute of Drug Metabolism and Pharmaceutical Analysis, Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang, 310058, China
| | - Lushan Yu
- Institute of Drug Metabolism and Pharmaceutical Analysis, Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang, 310058, China.
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11
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Han G, Guo Q, Ma N, Bi W, Xu M, Jia J, Wang W. LncRNA BCRT1 facilitates osteosarcoma progression via regulating miR-1303/FGF7 axis. Aging (Albany NY) 2021; 13:15501-15510. [PMID: 34102610 PMCID: PMC8221344 DOI: 10.18632/aging.203106] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 12/19/2020] [Indexed: 12/16/2022]
Abstract
Growing studies noted that lncRNA was closely related with the initiation and progression of tumors. However, the role of BCRT1 in the progression of osteosarcoma remains unknown. We noted that BCRT1 is significantly upregulated in osteosarcoma specimens and cells. Elevated expression of BCRT1 promotes cell growth and cell cycle in osteosarcoma cell. Moreover, BCRT1 induces EMT and secretion of inflammatory mediators in osteosarcoma cell. We illustrated that elevated expression of BCRT1 decreases miR-1303 expression in MG-63 cell. The expression of miR-1303 is lower in osteosarcoma specimens than in non-tumor specimens. There is an inverse interrelation between miR-1303 levels and BCRT1 levels in osteosarcoma specimens. Furthermore, we identified FGF7 is one direct target gene of miR-1303 in osteosarcoma cell. Ectopic expression of miR-1303 suppresses FGF7 expression and elevated expression of BCRT1 enhanced FGF7 expression in MG-63 cell. Finally, we illustrated that BCRT1 induces osteosarcoma cell cycle and proliferation and promotes EMT progression and inflammatory mediators secretion via modulating FGF7 expression. Our study suggested that BCRT1 acts as one oncogene in osteosarcoma progression.
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Affiliation(s)
- Gang Han
- Department of Orthopedics, The First Medical Center of General Hospital of PLA, Beijing 100853, China
| | - Quanyi Guo
- Department of Orthopedics, The First Medical Center of General Hospital of PLA, Beijing 100853, China
| | - Ning Ma
- Department of Orthopedics, The First Medical Center of General Hospital of PLA, Beijing 100853, China
| | - Wenzhi Bi
- Department of Orthopedics, The First Medical Center of General Hospital of PLA, Beijing 100853, China
| | - Meng Xu
- Department of Orthopedics, The First Medical Center of General Hospital of PLA, Beijing 100853, China
| | - Jinpeng Jia
- Department of Orthopedics, The First Medical Center of General Hospital of PLA, Beijing 100853, China
| | - Wei Wang
- Department of Orthopedics, The First Medical Center of General Hospital of PLA, Beijing 100853, China
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12
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Liu Y, Li L, Wu X, Qi H, Gao Y, Li Y, Chen D. MSC-AS1 induced cell growth and inflammatory mediators secretion through sponging miR-142-5p/DDX5 in gastric carcinoma. Aging (Albany NY) 2021; 13:10387-10395. [PMID: 33819916 PMCID: PMC8064188 DOI: 10.18632/aging.202800] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Accepted: 12/10/2020] [Indexed: 12/18/2022]
Abstract
Emerging studies have noted that dysregulated lncRNAs are implicated in cancer progression and tumorigenesis. We first showed that MSC-AS1 was overexpressed in gastric cancer (GC) cells (HGC-27, MKN-45, SGC-7901 and MGC-803 cells) compared with GES cells. We observed that MSC-AS1 was upregulated in GC specimens compared with paired normal specimens. MSC-AS1 increased cell growth and cycle progression. Moreover, the overexpression of MSC-AS1 enhanced the secretion of the inflammatory mediators IL-1β, IL-6 and TNF-α. We found that the overexpression of MSC-AS1 inhibited the expression of miR-142-5p in HGC-27 cells. We noted that DDK5 was a target gene of miR-142-5p. The overexpression of miR-142-5p suppressed the luciferase activity of wild-type DDX5, but the luciferase activity of the mutant DDX5 was not changed. We showed that miR-142-5p was downregulated in GC specimens compared with paired normal specimens. MSC-AS1 expression was inversely correlated with miR-142-5p expression in GC specimens. MSC-AS1 induced cell growth, cell cycle progression and inflammatory mediator secretion by modulating DDX5. These results showed that MSC-AS1 functions as a key oncogene in the development of GC.
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Affiliation(s)
- Yan Liu
- Department of Oncology, The Fourth Hospital of China Medical University, Liaoning, Shengyang 110032, China
| | - Lin Li
- Department of Oncology, The Fourth Hospital of China Medical University, Liaoning, Shengyang 110032, China
| | - Xiaoxu Wu
- Department of Oncology, The Fourth Hospital of China Medical University, Liaoning, Shengyang 110032, China
| | - Haiyan Qi
- Department of Oncology, The Fourth Hospital of China Medical University, Liaoning, Shengyang 110032, China
| | - Yan Gao
- Department of Oncology, The Fourth Hospital of China Medical University, Liaoning, Shengyang 110032, China
| | - Yanqi Li
- Department of Oncology, The Fourth Hospital of China Medical University, Liaoning, Shengyang 110032, China
| | - Da Chen
- Department of General Practice, The Fourth Hospital of China Medical University, Liaoning, Shengyang 110032, China
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Wu X, Yan L, Liu Y, Shang L. Circ_0000527 promotes osteosarcoma cell progression through modulating miR-646/ARL2 axis. Aging (Albany NY) 2021; 13:6091-6102. [PMID: 33617480 PMCID: PMC7950279 DOI: 10.18632/aging.202602] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 11/25/2020] [Indexed: 01/04/2023]
Abstract
Accumulating evidence shows that circRNAs play critical roles in the development of human tumors. We observed that circ_0000527 was overexpressed in osteosarcoma cells (SAOS-2, HOS, MG-63 and U2OS) compared in hFOB1.19 cells. We demonstrated that the circ_0000527 level was higher in osteosarcoma specimens than in non-tumor specimens. The ectopic expression of circ_0000527 was shown to induce cell growth, cell cycle progression and the secretion of inflammatory mediators, including IL-1β, IL-6, IL-8 and TNF-α. We demonstrated that circ_0000527 sponges miR-646 in osteosarcoma cells and that ARL2 is a target gene of miR-646. MiR-646 expression was decreased and ARL2 was overexpressed in osteosarcoma cells (SAOS-2, HOS, MG-63 and U2OS) compared to hFOB1.19 cells. Overexpression of circ_0000527 was demonstrated to induce ARL2 expression in MG-63 cells. We showed that miR-646 was downregulated in osteosarcoma specimens compared to that of non-tumor specimens and that the level of circ_0000527 was negatively correlated with miR-646 expression in osteosarcoma specimens. The elevated expression of circ_0000527 was shown to promote cell growth and cell cycle progression by modulating miR-646 expression. The ectopic expression of circ_0000527 was shown to promote cell growth, cell cycle progression and the secretion of inflammatory mediators by modulating ARL2. The present study suggested that the circ_0000527/miR-646/ARL2 axis may be a potential treatment target for osteosarcoma.
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Affiliation(s)
- Xiangkun Wu
- Department of Orthopaedic Surgery, Nanyang Second People's Hospital, Nanyang 473000, Henan, China
| | - Lihua Yan
- Department of Medical Oncology, Nanyang Second People's Hospital, Nanyang 473000, Henan, China
| | - Yongxi Liu
- Department of Orthopaedic Surgery, Nanyang Second People's Hospital, Nanyang 473000, Henan, China
| | - Lilin Shang
- Department of Orthopaedic Surgery, Nanyang Second People's Hospital, Nanyang 473000, Henan, China
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Xu Q, He L, Ma L, Fan L, Yan L, Zhao X, Li Y. LINC01410 accelerated the invasion and proliferation of osteosarcoma by sponging miR-3128. Aging (Albany NY) 2020; 12:24957-24966. [PMID: 33401246 PMCID: PMC7803582 DOI: 10.18632/aging.103464] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Accepted: 05/27/2020] [Indexed: 12/14/2022]
Abstract
Increasing evidence has shown that lncRNAs are closely correlated with cell apoptosis, autophagy and progression. However, the role of LINC01410 in osteosarcoma has not been verified. We determined that LINC01410 was overexpressed in osteosarcoma specimens and cell lines. The expression of LINC01410 was upregulated in 22 osteosarcoma patients (22/30, 73%) compared to control normal samples. Ectopic expression of LINC01410 promoted the osteosarcoma cell cycle, proliferation and invasion. Overexpression of LINC01410 induced N-cadherin and Vimentin expression and inhibited E-cadherin expression in osteosarcoma cells. LINC01410 acted as a sponge for miR-3128. The results showed that miR-3128 overexpression decreased the luciferase activity of WT-LINC01410 but not mut-LINC01410 in MG-63 cells. Upregulation of LINC01410 expression suppressed miR-3128 expression in MG-63 cells. Moreover, LINC01410 overexpression increased osteosarcoma cell invasion and growth by modulating miR-3128. These data indicated that LINC01410 acted as an oncogene in osteosarcomagenesis and might be a potential new strategy for osteosarcoma treatment.
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Affiliation(s)
- Quanxiao Xu
- Henan Medical Key Laboratory of Tumor Molecular Biology, Nanyang First People’s Hospital, Nanyang 473012, Henan Province, China
| | - Limin He
- Henan Medical Key Laboratory of Tumor Molecular Biology, Nanyang First People’s Hospital, Nanyang 473012, Henan Province, China
| | - Lei Ma
- Henan Medical Key Laboratory of Tumor Molecular Biology, Nanyang First People’s Hospital, Nanyang 473012, Henan Province, China
| | - Lin Fan
- Department of Medical Oncology, Nanyang Second People's Hospital, Nanyang 473000, Henan, China
| | - Lihua Yan
- Department of Medical Oncology, Nanyang Second People's Hospital, Nanyang 473000, Henan, China
| | - Xulin Zhao
- Henan Medical Key Laboratory of Tumor Molecular Biology, Nanyang First People’s Hospital, Nanyang 473012, Henan Province, China
| | - Yuanyuan Li
- Henan Medical Key Laboratory of Tumor Molecular Biology, Nanyang First People’s Hospital, Nanyang 473012, Henan Province, China
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Wu X, Yan L, Liu Y, Shang L. LncRNA ROR1-AS1 accelerates osteosarcoma invasion and proliferation through modulating miR-504. Aging (Albany NY) 2020; 13:219-227. [PMID: 33401251 PMCID: PMC7835057 DOI: 10.18632/aging.103498] [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: 02/03/2020] [Accepted: 06/01/2020] [Indexed: 12/12/2022]
Abstract
Long non-coding RNAs (LncRNAs) play vital roles in the progression and development of tumors. However, the functional role of ROR1-AS1 in osteosarcoma has not been investigated. We found that ROR1-AS1 was upregulated in osteosarcoma tissues compared to non-tumor samples. Elevated expression of ROR1-AS1 promoted cyclin D1, PCNA and ki-67 expression and increased cell cycle and growth in MG-63 cell. Moreover, overexpression of ROR1-AS1 induced cell migration in MG-63 cell, promoting N-cadherin and vimentin expression and inhibiting E-cadherin expression. Dual-luciferase assay proved that ROR1-AS1 served as one sponge for miR-504 and ROR1-AS1 overexpression suppressed miR-504 expression in MG-63 cell. ROR1-AS1 expression was lower in osteosarcoma tissues compared to non-tumor samples. Pearson's correlation assay showed a negative correlation between miR-504 and ROR1-AS1 expression. MiR-504 overexpression partly abrogated ROR1-AS1-induced effects on osteosarcoma cell migration and proliferation. These data implied that ROR1-AS1 played as an oncogene and might be a new treatment target for osteosarcoma.
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Affiliation(s)
- Xiangkun Wu
- Department of Orthopaedic Surgery, Nanyang Second People's Hospital, Nanyang 473000, Henan, China
| | - Lihua Yan
- Department of Medical Oncology, Nanyang Second People's Hospital, Nanyang 473000, Henan, China
| | - Yongxi Liu
- Department of Orthopaedic Surgery, Nanyang Second People's Hospital, Nanyang 473000, Henan, China
| | - Lilin Shang
- Department of Orthopaedic Surgery, Nanyang Second People's Hospital, Nanyang 473000, Henan, China
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Prognostic Value of Long Noncoding RNA SPRY4-IT1 on Survival Outcomes in Human Carcinomas: A Systematic Review and Meta-Analysis with TCGA Database. BIOMED RESEARCH INTERNATIONAL 2020; 2020:5868602. [PMID: 33204703 PMCID: PMC7652610 DOI: 10.1155/2020/5868602] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/20/2020] [Revised: 10/16/2020] [Accepted: 10/20/2020] [Indexed: 12/27/2022]
Abstract
Background Emerging evidences have shown that long noncoding RNA SPRY4-IT1 can be aberrantly expressed in human cancers, and it could be an unfavorable prognostic factor in cancer patients. However, the prognostic mechanism of SPRY4-IT1 is still unclear. This study is aimed at evaluating its potential predictive value for cancer prognosis. Methods We thoroughly searched PubMed, Embase, Web of Science, and MEDLINE databases so as to explore the relationship between SPRY4-IT1 expression and cancer prognosis value. Then, TCGA datasets were used to validate the results of our meta-analysis. Results In all, seventeen studies involving 1650 patients were included in this meta-analysis. Pooled results showed that high expression of SPRY4-IT1 was significantly correlated with poor OS (HR = 1.96, 95% confidence interval (CI) = 1.47‐2.62, P < 0.001) in cancer patients. Furthermore, exploration of TCGA dataset further validated that SPRY4-IT1 was aberrantly expressed in various cancers, which partially confirmed our results in this meta-analysis. Conclusions The present systematic review and meta-analysis implicated that the aberrant expressions of lncRNA SPRY4-IT1 were strongly associated with clinical survival outcomes in various cancers and therefore might serve as a promising biomarker for predicting prognosis of human cancers.
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Li Z, Li X, Xu D, Chen X, Li S, Zhang L, Chan MTV, Wu WKK. An update on the roles of circular RNAs in osteosarcoma. Cell Prolif 2020; 54:e12936. [PMID: 33103338 PMCID: PMC7791175 DOI: 10.1111/cpr.12936] [Citation(s) in RCA: 68] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Revised: 09/23/2020] [Accepted: 10/04/2020] [Indexed: 01/17/2023] Open
Abstract
Osteosarcoma is the most common primary bone malignancy and is a neoplasm thought to be derived from the bone‐forming mesenchymal stem cells. Aberrant activation of oncogenes and inactivation of tumour suppressor genes by somatic mutations and epigenetic mechanisms play a pivotal pathogenic role in osteosarcoma. Aside from alterations in these protein‐coding genes, it has now been realized that dysregulation of non‐coding RNAs (ncRNAs), including microRNAs (miRNAs), long non‐coding RNAs (lncRNAs) and the recently discovered circular RNAs (circRNAs), is crucial to the initiation and progression of osteosarcoma. CircRNAs are single‐stranded RNAs that form covalently closed loops and function as an important regulatory element of the genome through multiple machineries. Recently, an increasing number of studies suggested that circRNAs also played critical roles in osteosarcoma. This review summarizes recent development and progression in circRNA transcriptome analysis and their functions in the modulation of osteosarcoma progression.
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Affiliation(s)
- Zheng Li
- Department of Orthopaedic Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xingye Li
- Department of Orthopedic Surgery, Beijing Jishuitan Hospital, Fourth Clinical College of Peking University, Jishuitan Orthopaedic College of Tsinghua University, Beijing, China
| | - Derong Xu
- Department of Orthopedics, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Xin Chen
- Department of Orthopaedic Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Shugang Li
- Department of Orthopaedic Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Lin Zhang
- Department of Anaesthesia and Intensive Care, Peter Hung Pain Research Institute, The Chinese University of Hong Kong, Hong Kong City, Hong Kong
| | - Matthew T V Chan
- Department of Anaesthesia and Intensive Care, Peter Hung Pain Research Institute, The Chinese University of Hong Kong, Hong Kong City, Hong Kong
| | - William K K Wu
- Department of Anaesthesia and Intensive Care, Peter Hung Pain Research Institute, The Chinese University of Hong Kong, Hong Kong City, Hong Kong.,State Key Laboratory of Digestive Diseases, Centre for Gut Microbiota Research, Institute of Digestive Diseases and LKS Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong City, Hong Kong
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18
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Peng X, Zhang K, Ma L, Xu J, Chang W. The Role of Long Non-Coding RNAs in Thyroid Cancer. Front Oncol 2020; 10:941. [PMID: 32596158 PMCID: PMC7300266 DOI: 10.3389/fonc.2020.00941] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Accepted: 05/13/2020] [Indexed: 12/15/2022] Open
Abstract
Thyroid cancer, the most common endocrine malignancy, has become the most commonly diagnosed malignant solid tumor. Moreover, some cases have poor prognosis, and the survival period is only 3-5 months. Long noncoding RNAs (lncRNAs) are a group of functional RNA molecules more than 200 nucleotides in length that lack the ability to encode protein but participate in all aspects of gene regulation. Functionally, many lncRNAs play essential roles in epigenetic regulation at transcriptional and post-transcriptional levels via various molecular mechanisms. Recent studies have discovered important roles for lncRNAs during the complex process of carcinogenesis in thyroid cancer. In this review, we focus on lncRNAs dysregulated in thyroid cancer and summarize recently reported associations between lncRNAs and thyroid cancer in order to demonstrate the significant value of lncRNAs in diagnosis and treatment.
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Affiliation(s)
- Xuejiao Peng
- Department of Thyroid Surgery, Second Affiliated Hospital of Jilin University, Changchun, China
| | - Kun Zhang
- Medical Research Center, Second Affiliated Hospital of Jilin University, Changchun, China
| | - Li Ma
- Department of Thyroid Surgery, Second Affiliated Hospital of Jilin University, Changchun, China
| | - Junfeng Xu
- Department of Thyroid Surgery, Second Affiliated Hospital of Jilin University, Changchun, China
| | - Weiqin Chang
- Department of Thyroid Surgery, Second Affiliated Hospital of Jilin University, Changchun, China
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Yao H, Hou G, Wang QY, Xu WB, Zhao HQ, Xu YC. LncRNA SPRY4‑IT1 promotes progression of osteosarcoma by regulating ZEB1 and ZEB2 expression through sponging of miR‑101 activity. Int J Oncol 2019; 56:85-100. [PMID: 31746422 PMCID: PMC6910200 DOI: 10.3892/ijo.2019.4910] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Accepted: 09/16/2019] [Indexed: 12/14/2022] Open
Abstract
Long non‑coding (lnc)RNA sprouty receptor tyrosine kinase signalling antagonist 4‑intronic transcript 1 (SPRY4‑IT1) has been demonstrated to serve a critical role in the tumorigenesis of osteosarcoma (OS); however, the specific underlying mechanism remains unclear. The aim of the present study was to examine the interactions between SPRY4‑IT1 and its downstream effectors, to determine if any of the interactions contributed to SPRY4‑IT1‑mediated proliferation, migration and invasion in cancer cells. A signalling cascade which involved SPRY4‑IT1, miR‑101 and zinc finger E‑box‑binding homeoboxes (ZEBs) was examined in the present study. Intracellular SPRY4‑IT1 and miR‑101 expression levels were altered through transfection to assess their effect on proliferation, cell cycle progression, survival, migration and invasion. A dual‑luciferase assay was utilized to determine the association between SPRY4‑IT1/miR‑101 and ZEBs/miR‑101 and nude mouse xenograft experiments were performed to determine the effect of SPRY4‑IT1 in vivo. The results indicated that the SPRY4‑IT1 levels were negatively associated with miR‑101 expression levels in OS cells, an association which was not observed in the normal osteoblast cells. SPRY4‑IT1 knockdown or miR‑101 overexpression reduced proliferation, cell cycle progression, survival, migration and invasion of MG‑63 and U2OS cells. SPRY4‑IT1 knockdown was accompanied by increased expression of miR‑101 and E‑cadherin levels, as well as decreased expression levels of ZEB1/2 and other epithelial‑mesenchymal transition‑associated proteins. Simultaneous knockdown of SPRY4‑IT1 and inhibition of miR‑101 partially reversed the anti‑tumour effects of SPRY4‑IT1 inhibition in vitro. Consistent with these findings, short hairpin RNA targeting SPRY4‑IT1 also hindered xenograft tumour growth and altered the levels of miR‑101, ZEB1/2 and E‑cadherin in vivo. Dual‑luciferase reporter assays demonstrated that SPRY4‑IT1 may have regulated the expression of ZEB1 and ZEB2 by sponging miR‑101. In conclusion, SPRY4‑IT1 inhibition increased miR‑101 levels, resulting in downregulation of ZEB1/2 expression and thus exerting anti‑tumour effects in OS.
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Affiliation(s)
- Hui Yao
- Department of Orthopaedics, The Third Affiliated Hospital of Sun Yat‑Sen University, Guangzhou, Guangdong 510530, P.R. China
| | - Gang Hou
- Department of Orthopaedics, The Third Affiliated Hospital of Sun Yat‑Sen University, Guangzhou, Guangdong 510530, P.R. China
| | - Qi-You Wang
- Department of Orthopaedics, The Third Affiliated Hospital of Sun Yat‑Sen University, Guangzhou, Guangdong 510530, P.R. China
| | - Wen-Bin Xu
- Department of Orthopaedics, The Third Affiliated Hospital of Sun Yat‑Sen University, Guangzhou, Guangdong 510530, P.R. China
| | - Hui-Qing Zhao
- Department of Orthopaedics, The Third Affiliated Hospital of Sun Yat‑Sen University, Guangzhou, Guangdong 510530, P.R. China
| | - Yi-Chun Xu
- Department of Orthopaedics, The Third Affiliated Hospital of Sun Yat‑Sen University, Guangzhou, Guangdong 510530, P.R. China
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Zhao M, Chen N, Li X, Lin L, Chen X. MiR-19a modulates hypoxia-mediated cell proliferation and migration via repressing PTEN in human pulmonary arterial smooth muscle. Life Sci 2019; 239:116928. [PMID: 31682848 DOI: 10.1016/j.lfs.2019.116928] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2019] [Revised: 09/23/2019] [Accepted: 10/01/2019] [Indexed: 12/16/2022]
Abstract
AIM The dysfunction of human pulmonary arterial smooth muscle cells (HPASMCs) has been suggested to participate in the pathophysiology of pulmonary arterial hypertension (PAH). This study determined miR-19a expression in hypoxia-induced HPASMCs and explored the mechanistic actions of miR-19a in hypoxia-induced HPASMC proliferation and migration. METHODS QRT-PCR and western blot assays respectively determined the mRNA and protein expression of miR-19a, phosphatase and tensin homolog (PTEN) and hypoxia-inducible factor-1 alpha (HIF-1α). In vitro functional assays determined HPASMC proliferation and migration, respectively. Luciferase reporter assay determined interaction between miR-19a and PTEN. The knockdown effects of miR-19a on PAH were confirmed in in vivo mice model. RESULTS Hypoxia treatment time-dependently up-regulated miR-19a expression and enhanced cell proliferation in HPASMCs. MiR-19a overexpression increased cell proliferation and migration of HPASMCs, while repression of miR-19a reduced cell proliferative and migratory potentials of hypoxia-treated HPASMCs. Bioinformatics analysis and luciferase reporter assay showed that PTEN 3' untranslated region was targeted by miR-19a, and miR-19a repressed the mRNA and protein expression of PTEN in HPASMCs. Further rescue studies revealed that miR-19a regulated proliferative and migratory potentials of hypoxia-treated HPASMCs via suppressing PTEN expression. In addition, HIF-1α was identified as one of the mediators for the hypoxia-induced aberrant expression levels of miR-19a and PTEN. MiR-19a overexpression enhanced PI3K/AKT signaling, which was attenuated by enforced expression of PTEN in HPASMCs. More importantly, knockdown of miR-19 attenuated the chronic hypoxia-induced PAH in in vivo mice model. CONCLUSION This study presented a novel mechanistic action of miR-19a-mediated cell proliferation and migration of HPASMCs.
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Affiliation(s)
- Mei Zhao
- Department of Pharmacy, Sanya Central Hospital (The Third People's Hospital of Hainan Province), Sanya City, Hainan Province, China.
| | - Ni Chen
- Department of Pharmacy, The Second Affiliated Hospital of Hainan Medical University, Haikou City, Hainan Province, China.
| | - Xuelian Li
- Department of Pharmacology, College of Pharmacy, Harbin Medical University, Harbin City, Heilongjiang Province, China.
| | - Ling Lin
- Department of Cardiovascular Medicine, Sanya Central Hospital (The Third People's Hospital of Hainan Province), Sanya City, Hainan Province, China.
| | - Xin Chen
- Department of Neurosurgery, The First Affiliated Hospital of Harbin Medical University, Harbin City, Heilongjiang Province, China.
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Zou Y, Zhang B, Mao Y, Zhang H, Hong W. Long non-coding RNA OECC promotes cell proliferation and metastasis through the PI3K/Akt/mTOR signaling pathway in human lung cancer. Oncol Lett 2019; 18:3017-3024. [PMID: 31452780 PMCID: PMC6704322 DOI: 10.3892/ol.2019.10644] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Accepted: 06/24/2019] [Indexed: 12/18/2022] Open
Abstract
Lung cancer is one of the most common malignancies worldwide; however, its detailed molecular mechanism remains largely unknown. Long non-coding RNAs (lncRNAs) have been identified to serve critical roles in tumorigenesis. The aim of the present study was to investigate the role of a newly identified lncRNA, overexpressed in colorectal cancer (OECC), in human lung cancer. It was initially revealed that the relative transcript level of OECC was highly upregulated in clinical human lung cancer tissues as well as in cultured lung cancer cells. Knockdown of OECC with specific short hairpin RNAs in lung cancer cell lines A549 and 95D inhibited colony formation and cell viability, as evidenced using colony formation assays and cell proliferation assays. Furthermore, depletion of OECC in A549 and 95D cells suppressed migration and invasion, which was verified using Transwell assays. RNA-sequence analysis suggested that the phosphoinositide 3-kinase/protein kinase B (Akt)/mammalian target of rapamycin signaling pathway was positively regulated by OECC in lung cancer cells A549. In addition, overexpression of Akt in OECC-depleted A549 and 95D cells reversed the suppression of proliferation and migration caused by OECC depletion. The results of the present study identified lncRNA OECC as a novel regulator of lung cancer progression and provided new clues for the clinical treatment of lung cancer.
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Affiliation(s)
- Yimin Zou
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, P.R. China
| | - Bin Zhang
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, P.R. China
| | - Yanxiong Mao
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, P.R. China
| | - Hao Zhang
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, P.R. China
| | - Wei Hong
- Guangzhou Medical University-Guangzhou Institute of Biomedicine and Health Joint School of Life Sciences, Guangzhou Medical University, Guangzhou, Guangdong 510030, P.R. China
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HIF-1α induced long noncoding RNA FOXD2-AS1 promotes the osteosarcoma through repressing p21. Biomed Pharmacother 2019; 117:109104. [PMID: 31228799 DOI: 10.1016/j.biopha.2019.109104] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2019] [Revised: 05/26/2019] [Accepted: 06/06/2019] [Indexed: 01/08/2023] Open
Abstract
Emerging literature indicates the essential roles of long noncoding RNA (lncRNA) in the osteosarcoma (OS). However, the regulatory function and mechanism of FOXD2-AS1 in the OS is still elusive. In present research, the level of FOXD2-AS1 was significantly up-regulated in the OS tissue and cell lines compared to corresponding controls. The aberrant high-expression of FOXD2-AS1 indicated the poor clinical prognosis of OS patients. Transcription factor HIF-1α could bind with the promoter region of FOXD2-AS1 to activate the transcription in OS cells. Functionally, the knockdown of FOXD2-AS1 could repress the malignant biological properties of OS cells in vitro and vivo, including proliferation, invasion, apoptosis and tumor growth. Mechanistically, FOXD2-AS1 inhibited the expression of p21 via interacting with EZH2 to silence p21 gene expression. Overall, we conclude that FOXD2-AS1, induced by transcription factor HIF-1α, acts as an oncogene in the OS tumorigenesis and FOXD2-AS1 interacts with EZH2 to silence p21 protein. This finding could provide a novel insight and potential therapeutic target for the OS.
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23
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Li Z, Tang X, Duan S. Interference from LncRNA SPRY4-IT1 restrains the proliferation, migration, and invasion of melanoma cells through inactivating MAPK pathway by up-regulating miR-22-3p. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2019; 12:477-487. [PMID: 31933852 PMCID: PMC6945084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Accepted: 12/22/2018] [Indexed: 06/10/2023]
Abstract
Melanoma is a common malignancy with a low survival rate worldwide. Long non-coding RNA Sprouty4-Intron 1 (SPRY4-IT1) is correlated with various cancers, including melanoma. Herein, the underlying molecular mechanisms of SPRY4-IT1 in melanoma were characterized. We found that SPRY4-IT1 level was upregulated in melanoma cells lines compared to the normal skin cells, while miR-22-3p was downregulated. According to of bioinformatics analysis, SPRY4-IT1 was a hypothetic target of miR-22-3p, and knockdown SPRY4-IT1 by sh-RNA (sh-SPRY4-IT1) markedly elevated the miR-22-3p level. Also, the target relationship was further confirmed by dual luciferase reporter assay. In addition, low-expression of SPRY4-IT1 impeded cell proliferation, invasion, migration, and epithelial-mesenchymal transition. Furthermore, western blot assay indicated that the enhanced miR-22-3p further decelerated the phosphorylation of p38MAPK, MAPKAPK and Hsp27, which indicates that miR-22-3p could inactivate the p38MAPK/MAPKAPK/Hsp27 signaling pathway. Overall, our results show that sh-SPRY4-IT1 inhibits cell proliferation and motility through inactivating MAPK signaling by up-regulating miR-22-3p. Therefore, designing targeted drugs against SPRY4-IT1 provides a new direction for the treatment of melanoma.
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Affiliation(s)
- Zhiqing Li
- Department of Dermatology, Institute of Dermatology and Venereal Diseases, Sichuan Academy of Medical Sciences and Sichuan Provincial People’s HospitalChengdu, Sichuan, China
| | - Xuefeng Tang
- Department of Pathology, Xinqiao Hospital of AMUChongqing, China
| | - Song Duan
- Department of Pathology, Chongqing Three Gorges Central HospitalChongqing, China
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Gao L, Cao H, Cheng X. A positive feedback regulation between long noncoding RNA SNHG1 and YAP1 modulates growth and metastasis in laryngeal squamous cell carcinoma. Am J Cancer Res 2018; 8:1712-1724. [PMID: 30323965 PMCID: PMC6176179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2018] [Accepted: 07/30/2018] [Indexed: 06/08/2023] Open
Abstract
Laryngeal squamous cell carcinoma (LSCC) is the second highest incidence among the head and neck malignancies. Long noncoding RNA (lncRNA) small nucleolar RNA host gene 1 (SNHG1) functions as an oncogene in various human cancers. However, the biological functions and molecular mechanisms of SNHG1 in LSCC have not been reported. In this study, we found that lncRNA SNHG1 is significantly upregulated in LSCC and associated with prognosis of LSCC patients. Knockdown of SNHG1 inhibited cell proliferation, migration and invasion and induced cell apoptosis. In addition, knockdown of SNHG1 inhibits LSCC growth and metastasis in vivo. Mechanistically, SNHG1 promotes YAP1 expression and Hippo signaling activity by competitively sponging miR-375. Moreover, YAP1 could occupy the SNHG1 promoter to enhance its transcription, suggesting that there exists a positive feedback regulation between YAP1 and SNHG1. Collectively, our study first elucidates the mechanism of SNHG1-mediated malignant phenotypes through evoking the miR-375/YAP1/Hippo signalling axis, which provides a novel target for LSCC treatment.
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Affiliation(s)
- Ling Gao
- Department of Otorhinolaryngology, The First Affiliated Hospital of Zhengzhou University Zhengzhou 450052, Henan Province, PR China
| | - Hua Cao
- Department of Otorhinolaryngology, The First Affiliated Hospital of Zhengzhou University Zhengzhou 450052, Henan Province, PR China
| | - Xiulian Cheng
- Department of Otorhinolaryngology, The First Affiliated Hospital of Zhengzhou University Zhengzhou 450052, Henan Province, PR China
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Lin X, Qiu J, Hua K. Long non-coding RNAs as emerging regulators of epithelial to mesenchymal transition in gynecologic cancers. Biosci Trends 2018; 12:342-353. [PMID: 30146551 DOI: 10.5582/bst.2018.01181] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Gynecologic cancer is a vital global healthcare issue with high rates of mortality and morbidity. Tumor metastasis attributes to most of the death suffering from solid tumors. The epithelial-mesenchymal transition (EMT) plays a pivotal role in initiating metastasis. Long non-coding RNAs (lncRNAs), a well-known group of non-coding RNAs, and a prominent topic in life science research, are misregulated in many malignancies and some are EMT-associated. In the case of gynecologic cancers, several EMT-associated lncRNAs have been identified and found to be implicated in cancer aggressiveness and progression. Mechanically, these lncRNAs participate in the EMT-related metastatic process in multiple ways including interaction with polycomb repressive complex 2 (PRC2), regulation of EMT signaling networks, mediation of EMT-transcription factors (EMT-TFs) and EMT markers, and cooperation with microRNAs (miRNAs). Further studies on these EMT-associated lncRNAs and identification of more relevant lncRNAs are imperative for the lncRNAs-based clinical management of high rate of metastasis in patients with gynecologic cancers.
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Affiliation(s)
- Xiaojing Lin
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University.,Shanghai Medical College, Fudan University.,Shanghai Key Laboratory of Female Reproductive Endocrine-Related Diseases, Fudan University
| | - Junjun Qiu
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University.,Shanghai Medical College, Fudan University.,Shanghai Key Laboratory of Female Reproductive Endocrine-Related Diseases, Fudan University
| | - Keqin Hua
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University.,Shanghai Medical College, Fudan University.,Shanghai Key Laboratory of Female Reproductive Endocrine-Related Diseases, Fudan University
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26
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Li Z, Shen J, Chan MTV, Wu WKK. The long non-coding RNA SPRY4-IT1: An emerging player in tumorigenesis and osteosarcoma. Cell Prolif 2018; 51:e12446. [PMID: 29484753 DOI: 10.1111/cpr.12446] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Accepted: 01/10/2018] [Indexed: 01/01/2023] Open
Abstract
Accumulating evidence from genome-wide analysis and functional studies has begun to unveil the important role of long non-coding RNAs (lncRNAs) in cancer development. The lncRNA SPRY4-IT1 is derived from an intron of SPRY4 gene and was originally reported to be upregulated in melanoma in which it functioned as an oncogene. Since this discovery, an increasing number of studies have investigated the expression and function of SPRY4-IT1 in human cancers. Aberrant expression of SPRY4-IT1 has now been documented in different cancer types, including osteosarcoma, breast, renal, oesophageal and prostate cancers. However, its deregulation and function in lung and gastric cancers remain controversial. Pertinent to clinical practice, SPRY4-IT1 expression has been shown to predict survival of cancer patients. In this review, we summarize recent evidence concerning SPRY4-IT1 deregulation and the associated mechanisms in human cancers. We also discuss the potential clinical utilization of this lncRNA as a diagnostic and prognostic biomarker for cancer patients.
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Affiliation(s)
- Zheng Li
- Department of Orthopaedic Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jianxiong Shen
- Department of Orthopaedic Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Matthew T V Chan
- Department of Anaesthesia and Intensive Care, The Chinese University of Hong Kong, Hong Kong, China
| | - William Ka Kei Wu
- Department of Anaesthesia and Intensive Care, The Chinese University of Hong Kong, Hong Kong, China.,State Key Laboratory of Digestive Disease, LKS Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China
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