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Goina CA, Goina DM, Farcas SS, Andreescu NI. The Role of Circular RNA for Early Diagnosis and Improved Management of Patients with Cardiovascular Diseases. Int J Mol Sci 2024; 25:2986. [PMID: 38474233 DOI: 10.3390/ijms25052986] [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: 01/22/2024] [Revised: 02/27/2024] [Accepted: 03/02/2024] [Indexed: 03/14/2024] Open
Abstract
Cardiovascular diseases (CVDs) are responsible for approximately 17.9 million deaths every year. There is growing evidence that circular RNAs (circRNAs) may play a significant role in the early diagnosis and treatment of cardiovascular diseases. As regulatory molecules, circular RNAs regulate gene expression, interact with proteins and miRNAs, and are translated into proteins that play a key role in a wide variety of biological processes, including the division and proliferation of cells, as well as the growth and development of individuals. An overview of the properties, expression profiles, classification, and functions of circRNAs is presented here, along with an explanation of their implications in cardiovascular diseases including heart failure, hypertension, ischemia/reperfusion injury, myocardial infarction, cardiomyopathies, atherosclerosis, and arrhythmia.
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Affiliation(s)
- Claudia Alexandrina Goina
- Doctoral School, Discipline of Genetics, "Victor Babes" University of Medicine and Pharmacy, Piata Eftimie Murgu 2, 300041 Timisoara, Romania
| | - Daniela Marcela Goina
- Faculty of Animal Husbandry and Biotechnologies, University of Agricultural Sciences and Veterinary Medicine of Banat, Calea Aradului 119, 300645 Timisoara, Romania
| | - Simona Sorina Farcas
- Department of Microscopic Morphology, Discipline of Genetics, Genomic Medicine Centre, "Victor Babeș" University of Medicine and Pharmacy, Piata Eftimie Murgu 2, 300041 Timisoara, Romania
| | - Nicoleta Ioana Andreescu
- Department of Microscopic Morphology, Discipline of Genetics, Genomic Medicine Centre, "Victor Babeș" University of Medicine and Pharmacy, Piata Eftimie Murgu 2, 300041 Timisoara, Romania
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Wang K, Gao XQ, Wang T, Zhou LY. The Function and Therapeutic Potential of Circular RNA in Cardiovascular Diseases. Cardiovasc Drugs Ther 2023; 37:181-198. [PMID: 34269929 DOI: 10.1007/s10557-021-07228-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/06/2021] [Indexed: 01/14/2023]
Abstract
Circular RNA (circRNA) has a closed-loop structure, and its 3' and 5' ends are directly covalently connected by reverse splicing, which is more stable than linear RNA. CircRNAs usually possess microRNA (miRNA) binding sites, which can bind miRNAs and inhibit miRNA function. Many studies have shown that circRNAs are involved in the processes of cell senescence, proliferation and apoptosis and a series of signalling pathways, playing an important role in the prevention and treatment of diseases. CircRNAs are potential biological diagnostic markers and therapeutic targets for cardiovascular diseases (CVDs). To identify biomarkers and potential effective therapeutic targets without toxicity for heart disease, we summarize the biogenesis, biology, characterization and functions of circRNAs in CVDs, hoping that this information will shed new light on the prevention and treatment of CVDs.
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Affiliation(s)
- Kai Wang
- Institute of Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, 266021, Shandong, China
| | - Xiang-Qian Gao
- Institute of Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, 266021, Shandong, China
| | - Tao Wang
- Institute of Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, 266021, Shandong, China
| | - Lu-Yu Zhou
- Institute of Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, 266021, Shandong, China.
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Joaquim VHA, Pereira NP, Fernandes T, Oliveira EM. Circular RNAs as a Diagnostic and Therapeutic Target in Cardiovascular Diseases. Int J Mol Sci 2023; 24:ijms24032125. [PMID: 36768449 PMCID: PMC9916891 DOI: 10.3390/ijms24032125] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 10/04/2022] [Accepted: 10/07/2022] [Indexed: 01/25/2023] Open
Abstract
Circular RNAs (circRNAs) are a family of noncoding RNAs (ncRNAs) that are endogenous and widely distributed in different species, performing several functions, mainly their association with microRNAs (miRNAs) and RNA-binding proteins. CVDs remain the leading cause of death worldwide; therefore, the development of new therapies and strategies, such as gene therapies or nonpharmacological therapies, with low cost, such as physical exercise, to alleviate these diseases is of extreme importance for society. With increasing evidence of ncRNA participating in the progression of CVDs, several studies have reported these RNAs as promising targets for diagnosis and treatment. There are several studies of CVDs and the role of miRNAs and lncRNAs; however, little is known about the new class of RNAs, called circRNAs, and CVDs. In this mini review, we focus on the mechanisms of circRNAs and CVDs.
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Liu Z, Zhou Y, Xia J. CircRNAs: Key molecules in the prevention and treatment of ischemic stroke. Biomed Pharmacother 2022; 156:113845. [DOI: 10.1016/j.biopha.2022.113845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 09/30/2022] [Accepted: 10/06/2022] [Indexed: 11/25/2022] Open
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Wen C, Li B, Nie L, Mao L, Xia Y. Emerging Roles of Extracellular Vesicle-Delivered Circular RNAs in Atherosclerosis. Front Cell Dev Biol 2022; 10:804247. [PMID: 35445015 PMCID: PMC9014218 DOI: 10.3389/fcell.2022.804247] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 03/09/2022] [Indexed: 01/20/2023] Open
Abstract
Atherosclerosis (AS) is universally defined as chronic vascular inflammation induced by dyslipidaemia, obesity, hypertension, diabetes and other risk factors. Extracellular vesicles as information transmitters regulate intracellular interactions and their important cargo circular RNAs are involved in the pathological process of AS. In this review, we summarize the current data to elucidate the emerging roles of extracellular vesicle-derived circular RNAs (EV-circRNAs) in AS and the mechanism by which EV-circRNAs affect the development of AS. Additionally, we discuss their vital role in the progression from risk factors to AS and highlight their great potential for use as diagnostic biomarkers of and novel therapeutic strategies for AS.
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Affiliation(s)
- Cheng Wen
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Bowei Li
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Lei Nie
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ling Mao
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yuanpeng Xia
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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He X, Tao Z, Zhang Z, He W, Xie Y, Zhang L. The potential role of RAAS-related hsa_circ_0122153 and hsa_circ_0025088 in essential hypertension. Clin Exp Hypertens 2021; 43:715-722. [PMID: 34392742 DOI: 10.1080/10641963.2021.1945077] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Background: The dysregulation of renin-angiotensin-aldosterone system (RAAS) is closely related to the development of essential hypertension (EH). MicroRNAs (miRNAs) are an important regulator of RAAS. The sponge effect of circular RNAs (circRNAs) on miRNAs makes the circRNA-miRNA-mRNA axis in EH possible, however, there is currently a lack of relevant evidence.Material and Methods: A circRNA-miRNA network was constructed based on the previous circRNAs microarray results. The expression of RAAS-related miRNAs and circRNAs were verified by qRT-PCR. Peripheral blood samples of 106 EH patients and 106 healthy volunteers were included in this study. GO and KEGG enrichment were performed to predict the role of candidate circRNAs in EH.Results: In EH patients, RAAS-related hsa-miR-483-3p and hsa-miR-27a-3p were down-regulated, and hsa_circ_0122153 and hsa_circ_0025088 were up-regulated. The relative expression of RAAS-related circRNAs and target miRNAs showed a negative correlation (hsa_circ_0122153-hsa-miR-483-3p and hsa_circ_0025088-hsa-miR-27a-3p). Hsa_circ_0122153 or hsa_circ_0025088 combined with corresponding miRNAs and environmental factors may support the early diagnosis of EH. Hsa_circ_0122153 and hsa_circ_0025088 may participate in the regulation of aldosterone and the secretion of renin through the circRNA-miRNA-mRNA network, respectively.Conclusion: Highly expressed hsa_circ_0122153 and hsa_circ_0025088 increase the risk of EH. The hsa_circ_0122153/hsa-miR-483-3p and hsa_circ_0025088/hsa-miR-27a-3p axis involving RAAS were potential EH pathways.
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Affiliation(s)
- Xin He
- Insitute of Geriatrics, the Affiliated Hospital of Medical School, Ningbo University, Ningbo, Zhejiang Province, China.,Department of Preventative Medicine, Zhejiang Provincial Key Laboratory of Pathological and Physiological Technology, Medical School of Ningbo University, Ningbo, Zhejiang Province, China
| | - Zhenbo Tao
- Insitute of Geriatrics, the Affiliated Hospital of Medical School, Ningbo University, Ningbo, Zhejiang Province, China
| | - Zebo Zhang
- Department of Preventative Medicine, Zhejiang Provincial Key Laboratory of Pathological and Physiological Technology, Medical School of Ningbo University, Ningbo, Zhejiang Province, China
| | - Wenming He
- Insitute of Geriatrics, the Affiliated Hospital of Medical School, Ningbo University, Ningbo, Zhejiang Province, China
| | - Yanqing Xie
- Insitute of Geriatrics, the Affiliated Hospital of Medical School, Ningbo University, Ningbo, Zhejiang Province, China
| | - Lina Zhang
- Insitute of Geriatrics, the Affiliated Hospital of Medical School, Ningbo University, Ningbo, Zhejiang Province, China
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Yao L, Xie Y. Down-regulation of hsa_circ_0006470 predicts tumor invasion: A new biomarker of gastric cancer. J Clin Lab Anal 2021; 35:e23879. [PMID: 34165822 PMCID: PMC8373341 DOI: 10.1002/jcla.23879] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2021] [Revised: 05/28/2021] [Accepted: 06/06/2021] [Indexed: 12/14/2022] Open
Abstract
Background Gastric cancer (GC) is a common cancer. Circular RNAs (circRNAs) regulate the pathogenesis of GC. This study aims to explore its potential as a GC biomarker. Methods The expression of hsa_circ_0006470 in GC tissues and GC cell lines was measured by quantitative reverse transcription‐polymerase chain reaction. The diagnostic value of hsa_circ_0006470 was estimated by the receiver operating characteristic (ROC) curve. Results Compared with adjacent normal tissues, the expression of hsa_circ_0006470 in GC tissues was significantly lower. The expression levels of hsa_circ_0006470 in different TNM stages and different invasion degrees were significantly different. The area under the ROC curve was 0.783, with sensitivity and specificity 0.725 and 0.750, respectively. Conclusions Hsa_circ_0006470 has a high value as a diagnostic biomarker for GC.
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Affiliation(s)
- Lipeng Yao
- Ningbo College of Health Sciences, Ningbo, Zhejiang, China.,Zhejiang Key Laboratory of Pathophysiology, Department of Biochemistry and Molecular Biology, Medical School of Ningbo University, Ningbo, Zhejiang, China
| | - Yaoyao Xie
- Zhejiang Key Laboratory of Pathophysiology, Department of Biochemistry and Molecular Biology, Medical School of Ningbo University, Ningbo, Zhejiang, China
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Yesharim L, Mojbafan M, Abiri M. Hints From the Cellular Functions to the Practical Outlook of Circular RNAs. Front Genet 2021; 12:679446. [PMID: 34220952 PMCID: PMC8247595 DOI: 10.3389/fgene.2021.679446] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 05/25/2021] [Indexed: 12/29/2022] Open
Abstract
Although it has been about 30 years since the discovery of circular RNAs (circRNAs) in mammalian cells, these subtypes of RNAs' capabilities have come into focus in recent years. The unique structure and various functional roles of circRNAs in many cellular processes have aroused researchers' interest and raised many questions about whether circRNAs can facilitate the diagnosis and treatment of diseases. To answer these questions, we will illustrate the main known functions and regulatory roles of circRNAs in the cell after presenting a brief history of the discovery of circRNAs and the main proposed theories of the biogenesis of circRNAs. Afterward, the practical application of circRNAs as biomarkers of different pathophysiological conditions will be discussed, mentioning some examples and challenges in this area. We also consider one of the main questions that human beings have always been faced, "the origin of life," and its possible connection to circRNAs. Finally, focusing on the various capabilities of circRNAs, we discuss their potential therapeutic applications considering the immunity response toward exogenous circRNAs. However, there are still disputes about the exact immune system reaction, which we will discuss in detail.
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Affiliation(s)
- Liora Yesharim
- Department of Medical Genetics and Molecular Biology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Marzieh Mojbafan
- Department of Medical Genetics and Molecular Biology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
- Department of Medical Genetics, Ali-Asghar Children’s Hospital, Tehran, Iran
| | - Maryam Abiri
- Department of Medical Genetics and Molecular Biology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
- Shahid Akbarabadi Clinical Research Development Unit (ShACRDU), Iran University of Medical Sciences, Tehran, Iran
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Tao Z, Zheng S, He X, Sun J, He C, Zhang L. Hsa_circ_0037897 may be a risk factor for essential hypertension via hsa-miR-145-5p. Clin Exp Hypertens 2021; 43:281-286. [PMID: 33307836 DOI: 10.1080/10641963.2020.1860081] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Objectives: This study aims to investigate the association between hsa_circ_0037897 and essential hypertension (EH) and to evaluate the diagnostic value of biomarker hsa_circ_0037897 in EH. Methods: This study included 92 EH patients and 92 sex- and age- (±3 years) matched subjects as control. qRT-PCR was performed to measure the expression level of circRNA and miRNA. Logistic regression analysis model was used to assess independent association between hsa_circ_0037897 and EH. Results: The expression level of hsa_circ_0037897 in EH patients was significantly higher (p < .001) compared to the control group, while hsa-miR-145-5p had significantly lower expression(p = .002) than the control group. The area under the ROC curve (AUC) of hsa_circ_0037897 was 0.656. Furthermore, the AUC increased to 0.714 when hsa_circ_0037897 was combined with hsa-miR-145-5p, BMI and smoking. Conclusion: The present results suggested that the high expression of hsa_circ_0037897 may be a risk factor for EH, and hsa_circ_0037897 has certain diagnostic value for EH.
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Affiliation(s)
- Zhenbo Tao
- Department of Preventative Medicine, Zhejiang Provincial Key Laboratory of Pathological and Physiological Technology, Medicine School of Ningbo University , Ningbo, China
| | - Shuying Zheng
- Department of Health Monitoring, Yinzhou District Center for Disease Control and Prevention , Ningbo, China
| | - Xin He
- Department of Preventative Medicine, Zhejiang Provincial Key Laboratory of Pathological and Physiological Technology, Medicine School of Ningbo University , Ningbo, China
| | - Jihan Sun
- Department of Clinical Medicine, Medicine School of Ningbo University , Ningbo, China
| | - Canxia He
- Department of Preventative Medicine, Zhejiang Provincial Key Laboratory of Pathological and Physiological Technology, Medicine School of Ningbo University , Ningbo, China
| | - Lina Zhang
- Department of Preventative Medicine, Zhejiang Provincial Key Laboratory of Pathological and Physiological Technology, Medicine School of Ningbo University , Ningbo, China
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MiRNAs, lncRNAs, and circular RNAs as mediators in hypertension-related vascular smooth muscle cell dysfunction. Hypertens Res 2020; 44:129-146. [DOI: 10.1038/s41440-020-00553-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 06/20/2020] [Accepted: 07/14/2020] [Indexed: 12/13/2022]
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Zhang JR, Sun HJ. LncRNAs and circular RNAs as endothelial cell messengers in hypertension: mechanism insights and therapeutic potential. Mol Biol Rep 2020; 47:5535-5547. [PMID: 32567025 DOI: 10.1007/s11033-020-05601-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Accepted: 06/17/2020] [Indexed: 12/11/2022]
Abstract
Endothelial cells are major constituents in the vasculature, and they act as important players in vascular homeostasis via secretion/release of vasodilators and vasoconstrictors. In healthy arteries, endothelial cells play a key role in the regulation of vascular tone, cellular adhesion, and angiogenesis. A shift in the functions of the blood vessels toward vasoconstriction, proinflammatory state, oxidative stress and deficiency of nitric oxide (NO) might lead to endothelial dysfunction, a key event implicated in the pathophysiology of cardiovascular metabolic diseases, including diabetes, atherosclerosis, arterial hypertension and pulmonary arterial hypertension (PAH). Thus, reversibility of endothelial dysfunction may be beneficial for maintaining vascular homeostasis. In recent years, accumulative evidence has documented that noncoding RNAs (ncRNAs) are critically involved in endothelial homeostasis. Specifically, long noncoding RNAs (lncRNAs) and circular RNAs are highly expressed in endothelial cells where they serve as important mediators in normal endothelial functions. Dysregulation of lncRNAs and circular RNAs has been tightly associated with hypertension-related endothelial dysfunction. In this review, we will summarize the current progression and underlying mechanisms of lncRNA and circular RNA in endothelial cell biology under hypertensive conditions. We will also highlight their potential as biomarkers or therapeutic targets for hypertension and its associated endothelial dysfunction.
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Affiliation(s)
- Ji-Ru Zhang
- Department of Anesthesiology, Affiliated Hospital of Jiangnan University, Wuxi, 214062, People's Republic of China
| | - Hai-Jian Sun
- Department of Basic Medicine, Wuxi School of Medicine, Jiangnan University, Wuxi, 214122, Jiangsu, People's Republic of China. .,Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore.
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Zheng S, He X, Sun J, Li Q, Zhang T, Zhang L. The up-regulated hsa-circRNA9102-5 may be a risk factor for essential hypertension. J Clin Lab Anal 2020; 34:e23339. [PMID: 32445294 PMCID: PMC7439346 DOI: 10.1002/jcla.23339] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 03/24/2020] [Accepted: 03/27/2020] [Indexed: 12/17/2022] Open
Abstract
Background The present study was aimed to investigate the expression levels of circular RNAs (circRNAs) in the peripheral blood of essential hypertension (EH) patients and healthy controls (HC). On this basis, we tried to explain the possible role of circRNAs in the progression of EH and their potential as diagnostic biomarkers of EH. Methods First, we analyzed the differentially expressed circRNAs in peripheral blood obtained from the finished microarray analysis and selected four circRNAs under strict standards. Then, quantitative real‐time polymerase chain reaction (qRT‐PCR) was performed to measure the expression levels of the selected circRNAs in a total of 192 blood samples, consisting of 96 HC and 96 diagnosed EH patients. Bioinformatics prediction of the target microRNAs (miRNAs) was performed for differentially expressed circRNAs, and the circulating vascular‐related miRNAs were selected for qRT‐PCR analysis to determine their expression levels. Results Hsa‐circRNA9102‐5 (11.7 ± 1.06 vs 12.13 ± 1.11, P = .007) was up‐regulated in the patients group which was diagnosed with EH, as compared to the HC group, and was involved in the regulation of EH by sponging hsa‐miR‐150‐5p. The area under the ROC curve (AUC) of the model was 0.620, using hsa‐circRNA9102‐5 as an independent predictor. Furthermore, the AUC was increased to 0.728 when hsa‐circRNA9102‐5 was combined with hsa‐miR‐150‐5p and multiple other factors, as a combined predictor. Conclusions The present results suggested that hsa‐circRNA9102‐5 may have played a crucial role in the development of EH by sponging hsa‐miR‐150‐5p, which showed great potential as a novel target.
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Affiliation(s)
- Shuying Zheng
- Department of Preventative Medicine, Zhejiang Provincial Key Laboratory of Pathological and Physiological Technology, Medicine School of Ningbo University, Ningbo, China
| | - Xin He
- Department of Preventative Medicine, Zhejiang Provincial Key Laboratory of Pathological and Physiological Technology, Medicine School of Ningbo University, Ningbo, China
| | - Jihan Sun
- Department of Clinical Medicine, Medicine School of Ningbo University, Ningbo, China
| | - Qiang Li
- Department of Radiology, Yinzhou People's Hospital, Ningbo, China
| | - Tao Zhang
- Department of Chronic Disease Control and Prevention, Ningbo Municipal Center for Disease Control and Prevention, Ningbo, China
| | - Lina Zhang
- Department of Preventative Medicine, Zhejiang Provincial Key Laboratory of Pathological and Physiological Technology, Medicine School of Ningbo University, Ningbo, China
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Prestes PR, Maier MC, Woods BA, Charchar FJ. A Guide to the Short, Long and Circular RNAs in Hypertension and Cardiovascular Disease. Int J Mol Sci 2020; 21:ijms21103666. [PMID: 32455975 PMCID: PMC7279167 DOI: 10.3390/ijms21103666] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 05/05/2020] [Accepted: 05/18/2020] [Indexed: 12/13/2022] Open
Abstract
Cardiovascular disease (CVD) is the leading cause of morbidity and mortality in adults in developed countries. CVD encompasses many diseased states, including hypertension, coronary artery disease and atherosclerosis. Studies in animal models and human studies have elucidated the contribution of many genetic factors, including non-coding RNAs. Non-coding RNAs are RNAs not translated into protein, involved in gene expression regulation post-transcriptionally and implicated in CVD. Of these, circular RNAs (circRNAs) and microRNAs are relevant. CircRNAs are created by the back-splicing of pre-messenger RNA and have been underexplored as contributors to CVD. These circRNAs may also act as biomarkers of human disease, as they can be extracted from whole blood, plasma, saliva and seminal fluid. CircRNAs have recently been implicated in various disease processes, including hypertension and other cardiovascular disease. This review article will explore the promising and emerging roles of circRNAs as potential biomarkers and therapeutic targets in CVD, in particular hypertension.
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