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Li X, Yin X, Bao H, Liu C. Targeting a novel circITCH/miR-421/BTG1 axis is effective to suppress the malignant phenotypes in hepatocellular carcinoma (HCC) cells. Cytotechnology 2023; 75:255-267. [PMID: 37187949 PMCID: PMC10167090 DOI: 10.1007/s10616-023-00576-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Accepted: 03/16/2023] [Indexed: 04/05/2023] Open
Abstract
Circular RNA-based competing endogenous RNA (ceRNA) networks contribute to the initiation and development of various types of cancer, including hepatocellular carcinoma (HCC). Although a novel circular RNA itchy E3 ubiquitin protein ligase (circITCH) is identified as a tumor suppressor in HCC, its detailed molecular mechanisms have not been fully delineated. The present study was designed to resolve this issue, and we firstly verified that circITCH suppressed the malignant phenotypes in HCC cells by regulating a novel miR-421/B-cell translocation gene 1 (BTG1) axis. Specifically, through performing the Real-Time qPCR analysis, we noticed that circITCH expression in HCC tumor tissues or cell lines were significantly lower than that in adjacent normal tissues or normal hepatocytes, and the expression levels of circITCH were negatively correlated with tumor size and TNM stage in HCC patients. Next, our functional experiments confirmed that overexpression of circITCH induced cell cycle arrest and apoptosis, and reduced cell viability and colony forming ability in Hep3B and Huh7 cells. Mechanically, bioinformatics analysis, RNA immunoprecipitation and luciferase reporter assay demonstrated that circITCH served as RNA sponges for miR-421 to elevate BTG1 levels in HCC cells. The rescuing experiments verified that upregulation of miR-421 promoted cell viability and colony formation, and reduced apoptosis, which were abrogated by overexpression of circITCH or BTG1. In conclusion, this study identified a novel circITCH/miR-421/BTG1 axis that restrained the development of HCC, and our findings provided novel biomarkers for the treatment of this disease.
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Affiliation(s)
- Xiaodong Li
- Department of General Surgery, The Fourth Affiliated Hospital of Harbin Medical University, No. 37, Yiyuan Street, Nangang District, Harbin, 150001 Heilongjiang China
| | - Xuedong Yin
- Department of General Surgery, The Fourth Affiliated Hospital of Harbin Medical University, No. 37, Yiyuan Street, Nangang District, Harbin, 150001 Heilongjiang China
| | - Heyi Bao
- Department of General Surgery, Qiqihar First Hospital, Qiqihar, 161005 China
| | - Chang Liu
- Department of General Surgery, The Fourth Affiliated Hospital of Harbin Medical University, No. 37, Yiyuan Street, Nangang District, Harbin, 150001 Heilongjiang China
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2
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Liang Q, Zhou Z, Li H, Tao Q, Wang Y, Lin A, Xu J, Zhang B, Wu Y, Min H, Wang L, Song S, Wang D, Gao Q. Identification of pathological-related and diagnostic potential circular RNAs in Stanford type A aortic dissection. Front Cardiovasc Med 2023; 9:1074835. [PMID: 36712253 PMCID: PMC9880160 DOI: 10.3389/fcvm.2022.1074835] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Accepted: 12/21/2022] [Indexed: 01/15/2023] Open
Abstract
Introduction Stanford type A aortic dissection (TAAD) is one of the lethal macrovascular diseases caused by the invasion of blood into the media layer of ascending aortic wall. Inflammation, smooth muscle dysfunction, and extracellular matrix (ECM) degradation were regarded as the major pathology in affected tissue. However, the expression pattern and its regulation especially through circular RNAs (circRNAs) as an overall characteristic of TAAD molecular pathology remain unclear. Methods We employed CIRCexplorer2 to identify circRNAs based on the RNA sequencing (RNA-seq) data of human ascending aortic tissues to systematically assess the role of circRNA in the massive alterations of gene expression in TAAD aortas. The key circRNAs were determined by LASSO model and functionally annotated by competing endogenous RNAs (ceRNA) network and co-analysis with mRNA profile. The expression level and diagnostic capability of the 4 key circRNAs in peripheral serum were confirmed by real-time polymerase chain reaction (RT-PCR). Results The 4 key circRNAs, namely circPTGR1 (chr9:114341075-114348445[-]), circNOX4 (chr11:89069012-89106660[-]), circAMN1 (chr12:31854796-31862359[-]) and circUSP3 (chr15:63845913-63855207[+]), demonstrated a high power to discriminate between TAAD and control tissues, suggesting that these molecules stand for a major difference between the tissues at gene regulation level. Functionally, the ceRNA network of circRNA-miRNA-mRNA predicted by the online databases, combining gene set enrichment analysis (GSEA) and cell component prediction, revealed that the identified circRNAs covered all the aspects of primary TAAD pathology, centralized with increasing inflammatory factors and cells, and ECM destruction and loss of vascular inherent cells along with the circRNAs. Importantly, we validated the high concentration and diagnostic capability of the 4 key circRNAs in the peripheral serum in TAAD patients. Discussion This study reinforces the vital status of circRNAs in TAAD and the possibility of serving as promising diagnostic biomarkers.
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Affiliation(s)
- Qiao Liang
- Center for Translational Medicine and Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, Jiangsu, China
| | - Zeyi Zhou
- Department of Thoracic and Cardiovascular Surgery, Institute of Cardiothoracic Vascular Disease, Nanjing University, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
| | - Hui Li
- Center for Translational Medicine and Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, Jiangsu, China
| | - Qing Tao
- Center for Translational Medicine and Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, Jiangsu, China
| | - Yali Wang
- Department of Thoracic and Cardiovascular Surgery, Institute of Cardiothoracic Vascular Disease, Nanjing University, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
| | - Anqi Lin
- Center for Translational Medicine and Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, Jiangsu, China
| | - Jing Xu
- Center for Translational Medicine and Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, Jiangsu, China
| | - Bin Zhang
- Center for Translational Medicine and Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, Jiangsu, China,Central Laboratory, Nanjing Chest Hospital, Nanjing Medical University, Nanjing, China
| | - Yongzheng Wu
- Center for Translational Medicine and Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, Jiangsu, China
| | - Haiyan Min
- Central Laboratory, The Second Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Lei Wang
- Department of Clinical Laboratory, Jiangsu Provincial Hospital of Integrated Chinese and Western Medicine, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing, China
| | - Shiyu Song
- Center for Translational Medicine and Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, Jiangsu, China
| | - Dongjin Wang
- Department of Thoracic and Cardiovascular Surgery, Institute of Cardiothoracic Vascular Disease, Nanjing University, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China,*Correspondence: Qian Gao ✉
| | - Qian Gao
- Center for Translational Medicine and Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, Jiangsu, China,Dongjin Wang ✉
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Ai C, Yang H, Ding Y, Tang J, Guo F. A multi-layer multi-kernel neural network for determining associations between non-coding RNAs and diseases. Neurocomputing 2022. [DOI: 10.1016/j.neucom.2022.04.068] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Keshavarz Alikhani H, Pourhamzeh M, Seydi H, Shokoohian B, Hossein-khannazer N, Jamshidi-adegani F, Al-Hashmi S, Hassan M, Vosough M. Regulatory Non-Coding RNAs in Familial Hypercholesterolemia, Theranostic Applications. Front Cell Dev Biol 2022; 10:894800. [PMID: 35813199 PMCID: PMC9260315 DOI: 10.3389/fcell.2022.894800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Accepted: 06/01/2022] [Indexed: 11/13/2022] Open
Abstract
Familial hypercholesterolemia (FH) is a common monogenic disease which is associated with high serum levels of low-density lipoprotein cholesterol (LDL-C) and leads to atherosclerosis and cardiovascular disease (CVD). Early diagnosis and effective treatment strategy can significantly improve prognosis. Recently, non-coding RNAs (ncRNAs) have emerged as novel biomarkers for the diagnosis and innovative targets for therapeutics. Non-coding RNAs have essential roles in the regulation of LDL-C homeostasis, suggesting that manipulation and regulating ncRNAs could be a promising theranostic approach to ameliorate clinical complications of FH, particularly cardiovascular disease. In this review, we briefly discussed the mechanisms and pathophysiology of FH and novel therapeutic strategies for the treatment of FH. Moreover, the theranostic effects of different non-coding RNAs for the treatment and diagnosis of FH were highlighted. Finally, the advantages and disadvantages of ncRNA-based therapies vs. conventional therapies were discussed.
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Affiliation(s)
- Hani Keshavarz Alikhani
- Department of Regenerative Medicine, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Mahsa Pourhamzeh
- Department of Regenerative Medicine, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Homeyra Seydi
- Department of Regenerative Medicine, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Bahare Shokoohian
- Department of Regenerative Medicine, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Nikoo Hossein-khannazer
- Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Fatemeh Jamshidi-adegani
- Laboratory for Stem Cell and Regenerative Medicine, Natural and Medical Sciences Research Center, University of Nizwa, Nizwa, Oman
| | - Sulaiman Al-Hashmi
- Laboratory for Stem Cell and Regenerative Medicine, Natural and Medical Sciences Research Center, University of Nizwa, Nizwa, Oman
| | - Moustapha Hassan
- Experimental Cancer Medicine, Institution for Laboratory Medicine, Karolinska Institute, Stockholm, Sweden
| | - Massoud Vosough
- Department of Regenerative Medicine, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
- Experimental Cancer Medicine, Institution for Laboratory Medicine, Karolinska Institute, Stockholm, Sweden
- *Correspondence: Massoud Vosough,
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Gao F, Li J, Liang S, Wei L, He X, Liu S, Cheng X, Shi K, Jiang H, Chen L. Emerging roles of circRNAs in mice kidney with aging. Microsc Res Tech 2022; 85:2984-2996. [PMID: 35656876 DOI: 10.1002/jemt.24147] [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: 02/23/2022] [Revised: 04/22/2022] [Accepted: 04/25/2022] [Indexed: 11/06/2022]
Abstract
Circular RNA (circRNA) is a novel type of noncoding RNA expressed in different tissues and species. Up to now, little is known of the function and expression of circRNAs in kidney aging. In this research, we used RNA sequencing to identify 11,929 circRNAs in kidney from 3-, 12-, and 24-month-old mice, of which 12 circRNAs were validated by qPCR. Based on the validated circRNAs and their predicted miRNA-mRNA target pairs, a circRNA-miRNA-mRNA interactions network was conducted. Bioinformatics analysis for all the mRNAs in the ceRNA network showed that the most enriched gene ontology (GO) term and one of the most enriched Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways were associated with endoplasmic reticulum (ER). The network also identified circNpas2, which was decreased significantly in mice kidney during aging, as a hub gene. Subsequently, we found that the cell cycle was arrested in G1 phase and the expression of P53 and P16 increased significantly in the circNpas2-knockdown cells. Moreover, knockdown of circNpas2 inhibited expression of ER-related proteins, HSPA5 and ERO1L. Taken together, our findings contribute to a better understanding of the role played by circRNA during kidney aging and provide potential therapeutic targets for the prevention of kidney aging.
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Affiliation(s)
- Fanfan Gao
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Jie Li
- Dialysis Department of Nephrology Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Shanshan Liang
- Blood Transfusion Department, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Limin Wei
- Dialysis Department of Nephrology Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Xin He
- Dialysis Department of Nephrology Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Sixiu Liu
- Dialysis Department of Nephrology Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Xin Cheng
- Dialysis Department of Nephrology Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Kehui Shi
- Dialysis Department of Nephrology Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Hongli Jiang
- Dialysis Department of Nephrology Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Lei Chen
- Dialysis Department of Nephrology Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
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Circulating circRNA as biomarkers for dilated cardiomyopathy etiology. J Mol Med (Berl) 2021; 99:1711-1725. [PMID: 34498126 PMCID: PMC8599237 DOI: 10.1007/s00109-021-02119-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 06/22/2021] [Accepted: 07/14/2021] [Indexed: 12/12/2022]
Abstract
Dilated cardiomyopathy (DCM) is the third most common cause of heart failure. The multidisciplinary nature of testing - involving genetics, imaging, or cardiovascular techniques - makes its diagnosis challenging. Novel and reliable biomarkers are needed for early identification and tailored personalized management. Peripheral circular RNAs (circRNAs), a leading research topic, remain mostly unexplored in DCM. We aimed to assess whether peripheral circRNAs are expressed differentially among etiology-based DCM. The study was based on a case-control multicentric study. We enrolled 130 subjects: healthy controls (n = 20), idiopathic DCM (n = 30), ischemic DCM (n = 20), and familial DCM patients which included pathogen variants of (i) LMNA gene (n = 30) and (ii) BCL2-associated athanogene 3 (BAG3) gene (n = 30). Differentially expressed circRNAs were analyzed in plasma samples by quantitative RT-PCR and correlated to relevant systolic and diastolic parameters. The pathophysiological implications were explored through bioinformatics tools. Four circRNAs were overexpressed compared to controls: hsa_circ_0003258, hsa_circ_0051238, and hsa_circ_0051239 in LMNA-related DCM and hsa_circ_0089762 in the ischemic DCM cohort. The obtained areas under the curve confirm the discriminative capacity of circRNAs. The circRNAs correlated with some diastolic and systolic echocardiographic parameters with notable diagnostic potential in DCM. Circulating circRNAs may be helpful for the etiology-based diagnosis of DCM as a non-invasive biomarker. KEY MESSAGES: The limitations of cardiac diagnostic imaging and the absence of a robust biomarker reveal the need for a diagnostic tool for dilated cardiomyopathy (DCM). The circular RNA (circRNA) expression pattern is paramount for categorizing the DCM etiologies. Our peripheral circRNAs fingerprint discriminates between various among etiology-based DCM and correlates with some echocardiographic parameters. We provide a potential non-invasive biomarker for the etiology-based diagnosis of LMNA-related DCM and ischemic DCM.
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7
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Cai Y, Xu L, Xu C, Wang Y, Fan C. Hsa_circ_0001445 inhibits ox-LDL-induced HUVECs inflammation, oxidative stress and apoptosis by regulating miRNA-640. Perfusion 2020; 37:86-94. [PMID: 33300444 DOI: 10.1177/0267659120979472] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The role of Hsa_circ_0001445 in oxidation Low Lipoprotein (ox-LDL) induced HUVEC inflammatory damage remains poorly characterized. The present study investigated the performance of the circRNA Hsa_circ_0001445 on ox-LDL-induced HUVEC inflammatory damage. ox-LDL was employed to treat HUVECs and the expression of Hsa_circ_0001445 in cells were detected by qRT-PCR. Then, the overexpression plasmid of circ_0001445 was transfected into HUVECs. The Cell Counting Kit-8 assay was performed to detect cell viability, and the expression of tumor necrosis factor-α (TNF-α), interleukin (IL)-1β and IL-6 in treatment cells were measured using ELISAs. Furthermore, the oxidative stress kit was used to detect the levels of malondialdehyde, superoxide dismutase and glutathione peroxidase in treatment cells. Flow cytometry assay was applied to measure cell apoptosis, and the expressions of apoptosis-related protein were measured by western blot. The luciferase reporter assay was applied to confirm the target binding between Hsa_circ_0001445 and micro-RNA-640 (miRNA-640). Next, miRNA-640 mimic was transfected into ox-LDL-induced HUVECs, and then cell proliferation, expression level of inflammatory factors, oxidative stress and apoptosis level in treatment cells were assessed, with the expression of related proteins measured. The results revealed that the expression of Hsa_circ_0001445 was obviously downregulated in ox-LDL-induced HUVECs. Overexpression of Hsa_circ_0001445 promoted cell proliferation, inhibited ox-LDL-induced HUVEC inflammatory response, downregulate the expression of TNF-α, IL-1β and IL-16, overexpression of Hsa_circ_0001445 inhibited cell apoptosis. miRNA-640 was confirmed as a direct target of Hsa_circ_0001445, and miRNA-640 mimic reversed the effects of Hsa_circ_0001445 overexpression on ox-LDL-induced HUVECs. Our findings concluded that Hsa_circ_0001445 inhibits ox-LDL-induced HUVEC inflammation, oxidative stress and apoptosis by regulating miRNA-640.
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Affiliation(s)
- Yinlian Cai
- Department of Cardiology, The Second Affiliated of Fujian Medical University, Quanzhou City, Fujian Province, People's Republic of China
| | - Ling Xu
- Department of Cardiology, The Second Affiliated of Fujian Medical University, Quanzhou City, Fujian Province, People's Republic of China
| | - Chaoxiang Xu
- Department of Cardiology, The Second Affiliated of Fujian Medical University, Quanzhou City, Fujian Province, People's Republic of China
| | - Yaoguo Wang
- Department of Cardiology, The Second Affiliated of Fujian Medical University, Quanzhou City, Fujian Province, People's Republic of China
| | - Chenghui Fan
- Department of Cardiology, Shanghai East Hospital, Tongji University, Shanghai, People's Republic of China
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Zhang C, Huo ST, Wu Z, Chen L, Wen C, Chen H, Du WW, Wu N, Guan D, Lian S, Yang BB. Rapid Development of Targeting circRNAs in Cardiovascular Diseases. MOLECULAR THERAPY. NUCLEIC ACIDS 2020; 21:568-576. [PMID: 32721877 PMCID: PMC7390851 DOI: 10.1016/j.omtn.2020.06.022] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 04/27/2020] [Accepted: 06/23/2020] [Indexed: 12/13/2022]
Abstract
Circular RNAs (circRNAs) are circularized, single-stranded RNAs that are covalently linked. With their abundance in tissues and developmental stage-specific expression, circRNAs participate in a variety of physiological and pathological processes. In this review, we discuss the development of circRNAs used as biomarkers and therapeutic targets for cardiovascular diseases (CVDs), focusing on recent discoveries and applications of exosomal circRNAs that highlight opportunities and challenges. Some studies have identified a spectrum of circRNAs that are differentially expressed in CVDs, while other studies further manipulated specific circRNA expression and showed an ameliorated pathogenic state such as ischemic injury, hypertrophy, and cardiac fibrosis. Studies and applications of circRNAs are being rapidly developed. We expect to see clinical use of circRNAs as biomarkers and targets for disease treatment in the near future.
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Affiliation(s)
- Chao Zhang
- Department of Biochemistry and Molecular Biology, School of Basic Medical Science, Southern Medical University and Guangdong Provincial Key Laboratory of Single Cell Technology and Application, Guangzhou 510000, Guangdong Province, China; Department of Laboratory Medicine, Nanhai Hospital, Southern Medical University, Foshan 510000, Guangdong Province, China; Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, Toronto, ON M4N 3M5, Canada.
| | - Si Tong Huo
- Department of Biochemistry, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Zhiyong Wu
- College of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510000, Guangdong Province, China
| | - Lina Chen
- Basic Medical College, Xiangnan University, Chenzhou 523000, China
| | - Chang Wen
- Jiangxi Medical College, Nanchang University, Nanchang 330000, Nanchang, Jiangxi Province, China
| | - Honghao Chen
- Department of Biochemistry and Molecular Biology, School of Basic Medical Science, Southern Medical University and Guangdong Provincial Key Laboratory of Single Cell Technology and Application, Guangzhou 510000, Guangdong Province, China; Department of Laboratory Medicine, Nanhai Hospital, Southern Medical University, Foshan 510000, Guangdong Province, China
| | - William W Du
- Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, Toronto, ON M4N 3M5, Canada; Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON M5S 1A1, Canada
| | - Nan Wu
- Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, Toronto, ON M4N 3M5, Canada; Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON M5S 1A1, Canada
| | - Daogang Guan
- Department of Biochemistry and Molecular Biology, School of Basic Medical Science, Southern Medical University and Guangdong Provincial Key Laboratory of Single Cell Technology and Application, Guangzhou 510000, Guangdong Province, China
| | - Sen Lian
- Department of Biochemistry and Molecular Biology, School of Basic Medical Science, Southern Medical University and Guangdong Provincial Key Laboratory of Single Cell Technology and Application, Guangzhou 510000, Guangdong Province, China.
| | - Burton B Yang
- Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, Toronto, ON M4N 3M5, Canada; Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON M5S 1A1, Canada.
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Li J, Huang C, Zou Y, Yu J, Gui Y. Circular RNA MYLK promotes tumour growth and metastasis via modulating miR-513a-5p/VEGFC signalling in renal cell carcinoma. J Cell Mol Med 2020; 24:6609-6621. [PMID: 32342645 PMCID: PMC7299689 DOI: 10.1111/jcmm.15308] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 04/02/2020] [Accepted: 04/07/2020] [Indexed: 01/06/2023] Open
Abstract
Growing evidence indicates that circular RNAs (circRNAs) are promising biomarkers, as they play significant roles in the development of various cancers. The circular RNA MYLK (circMYLK) has been reported to be involved in the development of malignant tumours, including liver, prostate and bladder cancers. Nevertheless, the biological function of circMYLK in renal cell carcinoma (RCC) remains unclear. In this study, we observed that circMYLK is notably up-regulated in RCC. Increased circMYLK expression led to a larger tumour size, distant metastasis and poor prognosis of RCC patients. Moreover, circMYLK silencing repressed RCC growth and metastasis in vitro and in vivo. Mechanistically, circMYLK can capture miR-513a-5p to facilitate VEGFC expression and further promote the tumorigenesis of RCC cells. In summary, our findings demonstrate that circMYLK has an oncogenic role in RCC growth and metastasis by modulating miR-513a-5p/VEGFC signalling. Thus, circMYLK has potential as a diagnostic biomarker and therapeutic target in the treatment of RCC.
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Affiliation(s)
- Jianfa Li
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and GeneticsInstitute of UrologyPeking University Shenzhen HospitalShenzhen‐Peking University‐the Hong Kong University of Science and Technology Medical CenterShenzhenChina
| | - ChenChen Huang
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and GeneticsInstitute of UrologyPeking University Shenzhen HospitalShenzhen‐Peking University‐the Hong Kong University of Science and Technology Medical CenterShenzhenChina
- Anhui Medical UniversityHefeiChina
| | - Yifan Zou
- Department of UrologyThe Affiliated Luohu Hospital of Shenzhen UniversityShenzhenChina
| | - Jing Yu
- Department of Laboratory MedicinePeking University Shenzhen HospitalShenzhenChina
| | - Yaoting Gui
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and GeneticsInstitute of UrologyPeking University Shenzhen HospitalShenzhen‐Peking University‐the Hong Kong University of Science and Technology Medical CenterShenzhenChina
- Anhui Medical UniversityHefeiChina
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