1
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Zhang L, Huang QW, Pu YF, Xiao XQ, Song BJ, Zhang XP, Yang YS, Zhang YS, Gong FH. MiR-122 knockdown regulates vascular smooth muscle cells phenotypic switching through enhanced FOXO3 expression. Can J Physiol Pharmacol 2023; 101:652-660. [PMID: 37747048 DOI: 10.1139/cjpp-2022-0549] [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] [Indexed: 09/26/2023]
Abstract
Vascular smooth muscle cells (VSMCs) phenotypic switching is identified as enhanced dedifferentiation, proliferation, and migration ability of VSMCs, in which microRNAs have been identified as important regulators of the process. The present study is aimed to explore the pathophysiological effect of miR-122 on VSMC phenotypic modulation. Here, the result showed that the decreased miR-122 expression was found in VSMCs subjected to platelet-derived growth factor-BB (PDGF-BB) treatment. Next, we investigated the response of miR-122 knockdown in VSMCs with PDGF-BB stimulation. MiR-122 silencing showed increased proliferation and migration capability, whereas attenuated the differentiation markers expression. The above results were reversed by miR-122 overexpression. Finally, we further demonstrated that FOXO3 was an important target for miR-122. Collectively, we demonstrated that miR-122 silencing promoted VSMC phenotypic modulation partially through upregulated FOXO3 expression that indicated miR-122 may be a novel therapeutic target for neointimal formation.
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Affiliation(s)
- Lan Zhang
- Department of Cardiology, Tongren Municipal People's Hospital, Tongren 554300, China
- Department of Cardiology, The Sixth Affiliated Hospital of Jishou University, Jishou 416000, China
| | - Qian-Wei Huang
- Department of Clinical Laboratory, Tongren Municipal People's Hospital, Tongren 554300, China
| | - Yan-Fen Pu
- Department of Clinical Laboratory, Tongren Municipal People's Hospital, Tongren 554300, China
| | - Xiao-Qiang Xiao
- Department of Cardiology, Tongren Municipal People's Hospital, Tongren 554300, China
| | - Bian-Jing Song
- Department of Cardiology, Tongren Municipal People's Hospital, Tongren 554300, China
| | - Xue-Ping Zhang
- Department of Cardiology, Tongren Municipal People's Hospital, Tongren 554300, China
| | - Yong-Sheng Yang
- Department of Cardiology, Tongren Municipal People's Hospital, Tongren 554300, China
| | - Yu-Song Zhang
- Department of Cardiology, Tongren Municipal People's Hospital, Tongren 554300, China
| | - Fu-Han Gong
- Department of Cardiology, Tongren Municipal People's Hospital, Tongren 554300, China
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2
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Piao X, Ma L, Xu Q, Zhang X, Jin C. Noncoding RNAs: Versatile regulators of endothelial dysfunction. Life Sci 2023; 334:122246. [PMID: 37931743 DOI: 10.1016/j.lfs.2023.122246] [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: 09/30/2023] [Revised: 10/25/2023] [Accepted: 11/03/2023] [Indexed: 11/08/2023]
Abstract
Noncoding RNAs have recently emerged as versatile regulators of endothelial dysfunction in atherosclerosis, a chronic inflammatory disease characterized by the formation of plaques within the arterial walls. Through their ability to modulate gene expression, noncoding RNAs, including microRNAs, long noncoding RNAs, and circular RNAs, play crucial roles in various cellular processes involved in endothelial dysfunction (ECD), such as inflammation, pyroptosis, migration, proliferation, apoptosis, oxidative stress, and angiogenesis. This review provides an overview of the current understanding of the regulatory roles of noncoding RNAs in endothelial dysfunction during atherosclerosis. It highlights the specific noncoding RNAs that have been implicated in the pathogenesis of ECD, their target genes, and the mechanisms by which they contribute to ECD. Furthermore, we have reviewed the current therapeutics in atherosclerosis and explore their interaction with noncoding RNAs. Understanding the intricate regulatory network of noncoding RNAs in ECD may open up new opportunities for the development of novel therapeutic strategies to combat ECD.
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Affiliation(s)
- Xiong Piao
- Cardiovascular Surgery, Yanbian University Hospital, Yanji 133000, China.
| | - Lie Ma
- Cardiovascular Surgery, Yanbian University Hospital, Yanji 133000, China
| | - Qinqi Xu
- Cardiovascular Surgery, Yanbian University Hospital, Yanji 133000, China
| | - Xiaomin Zhang
- Cardiovascular Surgery, Yanbian University Hospital, Yanji 133000, China
| | - Chengzhu Jin
- Cardiovascular Surgery, Yanbian University Hospital, Yanji 133000, China
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3
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Wu H, Fu Q, Li Z, Wei H, Qin S. Inhibition of microRNA-122 alleviates pyroptosis by targeting dual-specificity phosphatase 4 in myocardial ischemia/reperfusion injury. Heliyon 2023; 9:e18238. [PMID: 37539226 PMCID: PMC10393637 DOI: 10.1016/j.heliyon.2023.e18238] [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: 03/08/2023] [Revised: 06/25/2023] [Accepted: 07/12/2023] [Indexed: 08/05/2023] Open
Abstract
Pyroptosis is a type of programmed cell death that induces myocardial ischemia-reperfusion injury (I/RI), which leads to cardiac dysfunction and even lethal reperfusion injury. MiR-122 is a liver-specific miRNA associated with coronary heart disease, but its role in pyroptosis activation in myocardial I/RI remains unclear. Thus, this study aimed to determine whether miR-122 inhibition exerts myocardial I/RI protection in in vivo and in vitro models. An I/RI model was established in vivo using C57BL/J6 male mice. MiR-122 expression was upregulated in the heart tissues from the I/RI group. Quantitative results of echocardiography parameters showed that miR-122 inhibition improved cardiac function and downregulated interleukin (IL)-1β, IL-18, caspase 1, and caspase 11. However, pretransfection with recombinant adeno-associated virus type 9 encoding a DUSP4-specific siRNA (AAV9-siDUSP4) blocked the protective effects of miR-122 inhibition. A hypoxia/reoxygenation (H/R) model was established to mimic the I/R condition in vitro using H9C2 cells. Results showed that miR-122 inhibition increased superoxide dismutase activity (SOD) and cell viability and decreased malondialdehyde (MDA) level, IL-1β, IL-18, caspase 1, caspase 11, and cell death. These protective effects were abolished by transfection with DUSP4-specific siRNA. In summary, miR-122 expression is upregulated in I/RI, and miR-122 inhibition alleviates I/RI by suppressing pyroptosis through targeting DUSP4. Thus, miR-122 may be a novel therapeutic target for treating myocardial I/RI.
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Affiliation(s)
- Hongjin Wu
- Boao International Hospital, Shanghai University of Traditional Chinese Medicine, Hainan 571437, China
| | - Qiang Fu
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, China
| | - Zhong Li
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, China
| | - Huamin Wei
- Department of Traditional Chinese Medicine, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - Shuyan Qin
- Department of Cardiology, Nanyang Second General Hospital, Henan 473000, China
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4
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Luo HY, Li G, Liu YG, Wei YH, Chen JB, Gu XF, Tang JQ, Zhao Y, Su CH, Xiao LY, Xiong F, Zheng ZD, Wang SY, Zha LY. The Accelerated Progression of Atherosclerosis Correlates with Decreased miR-33a and miR-21 and Increased miR-122 and miR-3064-5p in Circulation and the Liver of ApoE-/- Mice with Streptozocin (STZ)-Induced Type 2 Diabetes. Curr Issues Mol Biol 2022; 44:4822-4837. [PMID: 36286043 PMCID: PMC9601109 DOI: 10.3390/cimb44100328] [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: 09/27/2022] [Revised: 10/09/2022] [Accepted: 10/11/2022] [Indexed: 11/16/2022] Open
Abstract
Atherosclerosis is a major risk factor for type 2 diabetes (T2D) mortality. We aim to investigate the changes in miR-21, miR-122, miR-33a and miR-3064-5p in circulation and the liver of ApoE-/- mice with streptozocin (STZ)-induced T2D. Twenty 5-week-old male ApoE-/- mice were randomly assigned to the control (n = 10) and T2D group (n = 10) and intraperitoneally injected with a citrate buffer and streptozotocin (STZ) (40 mg/kg BW) once a day for three consecutive days. The successfully STZ-induced T2D mice (n = 5) and control mice (n = 5) were then fed with a high-fat diet (HFD) for 34 weeks. Compared to the control mice, ApoE-/- mice with STZ-induced T2D had slower (p < 0.05) growth, increased (p < 0.05) total cholesterol (TC) and low-density lipoprotein cholesterol (LDL-C), decreased (p < 0.05) high-density lipoprotein cholesterol (HDL-C) in serum, reduced (p < 0.05) TC and sterol regulatory element-binding protein-2 (Srebp-2), elevated (p < 0.05) ATP-binding-cassette-transporter-A1 (Abca1) in the liver, aggravated (p < 0.05) atherosclerotic lesions in the aorta, downregulated (p < 0.05) miR-21 and miR-33a, and upregulated (p < 0.05) miR-122 and miR-3064-5p in serum and the liver. In addition, the aortic lesions showed a positive correlation with miR-122 (r = 1.000, p = 0.001) and a negative correlation with miR-21 (r = −1.000, p = 0.001) in ApoE-/- mice with T2D. In conclusion, T2D-accelerated atherosclerosis correlates with a reduction in miR-21 and miR-33a and an elevation in miR-122 and miR-3064-5p in circulation and the liver of ApoE-/- mice.
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5
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Azari ZD, Aljubran F, Nothnick WB. Inflammatory MicroRNAs and the Pathophysiology of Endometriosis and Atherosclerosis: Common Pathways and Future Directions Towards Elucidating the Relationship. Reprod Sci 2022; 29:2089-2104. [PMID: 35476352 DOI: 10.1007/s43032-022-00955-6] [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: 12/30/2020] [Accepted: 04/19/2022] [Indexed: 11/25/2022]
Abstract
Emerging data indicates an association between endometriosis and subclinical atherosclerosis, with women with endometriosis at a higher risk for cardiovascular disease later in life. Inflammation is proposed to play a central role in the pathophysiology of both diseases and elevated levels of systemic pro-inflammatory cytokines including macrophage migration inhibitory factor (MIF), tumor necrosis factor-α (TNF-α), and interleukin-6 (IL-6) are well documented. However, a thorough understanding on the mediators and mechanisms which contribute to altered cytokine expression in both diseases remain poorly understood. MicroRNAs (miRNAs) are important post-transcriptional regulators of inflammatory pathways and numerous studies have reported altered circulating levels of miRNAs in both endometriosis and atherosclerosis. Potential contribution of miRNA-mediated inflammatory cascades common to the pathophysiology of both diseases has not been evaluated but could offer insight into common pathways and early manifestation relevant to both diseases which may help understand cause and effect. In this review, we discuss and summarize differentially expressed inflammatory circulating miRNAs in endometriosis subjects, compare this profile to that of circulating levels associated with atherosclerosis when possible, and then discuss mechanistic studies focusing on these miRNAs in relevant cell, tissue, and animal models. We conclude by discussing the potential utility of targeting the relevant miRNAs in the MIF-IL-6-TNF-α pathway as therapeutic options and offer insight into future studies which will help us better understand not only the role of these miRNAs in the pathophysiology of both endometriosis and atherosclerosis but also commonality between both diseases.
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Affiliation(s)
- Zubeen D Azari
- Kansas City University of Medicine and Biosciences, Kansas City, MO, 64106, USA
| | - Fatimah Aljubran
- Department of Molecular and Integrative Physiology, Institute for Reproductive and Perinatal Sciences, University of Kansas Medical Center, Kansas City, KS, 66160, USA
| | - Warren B Nothnick
- Department of Molecular and Integrative Physiology, Institute for Reproductive and Perinatal Sciences, University of Kansas Medical Center, Kansas City, KS, 66160, USA. .,Department of Obstetrics and Gynecology, Institute for Reproductive and Perinatal Sciences, University of Kansas Medical Center, Kansas City, KS, 66160, USA. .,Center for Reproductive Sciences, Institute for Reproductive and Perinatal Sciences, University of Kansas Medical Center, Kansas City, KS, 66160, USA.
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Li L, Liu S, Tan J, Wei L, Wu D, Gao S, Weng Y, Chen J. Recent advance in treatment of atherosclerosis: Key targets and plaque-positioned delivery strategies. J Tissue Eng 2022; 13:20417314221088509. [PMID: 35356091 PMCID: PMC8958685 DOI: 10.1177/20417314221088509] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Atherosclerosis, a chronic inflammatory disease of vascular wall, is a progressive pathophysiological process with lipids oxidation/depositing initiation and innate/adaptive immune responses. The coordination of multi systems covering oxidative stress, dysfunctional endothelium, diseased lipid uptake, cell apoptosis, thrombotic and pro-inflammatory responding as well as switched SMCs contributes to plaque growth. In this circumstance, inevitably, targeting these processes is considered to be effective for treating atherosclerosis. Arriving, retention and working of payload candidates mediated by targets in lesion direct ultimate therapeutic outcomes. Accumulating a series of scientific studies and clinical practice in the past decades, lesion homing delivery strategies including stent/balloon/nanoparticle-based transportation worked as the potent promotor to ensure a therapeutic effect. The objective of this review is to achieve a very brief summary about the effective therapeutic methods cooperating specifical targets and positioning-delivery strategies in atherosclerosis for better outcomes.
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Affiliation(s)
- Li Li
- Key Laboratory of Advanced Technology of Materials, Ministry of Education, Southwest Jiaotong University, Chengdu, PR China
| | - Sainan Liu
- Key Laboratory of Advanced Technology of Materials, Ministry of Education, Southwest Jiaotong University, Chengdu, PR China
| | - Jianying Tan
- Key Laboratory of Advanced Technology of Materials, Ministry of Education, Southwest Jiaotong University, Chengdu, PR China
| | - Lai Wei
- Key Laboratory of Advanced Technology of Materials, Ministry of Education, Southwest Jiaotong University, Chengdu, PR China
| | - Dimeng Wu
- Chengdu Daxan Innovative Medical Tech. Co., Ltd., Chengdu, PR China
| | - Shuai Gao
- Chengdu Daxan Innovative Medical Tech. Co., Ltd., Chengdu, PR China
| | - Yajun Weng
- Key Laboratory of Advanced Technology of Materials, Ministry of Education, Southwest Jiaotong University, Chengdu, PR China
| | - Junying Chen
- Key Laboratory of Advanced Technology of Materials, Ministry of Education, Southwest Jiaotong University, Chengdu, PR China
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7
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Gaddam RR, Dhuri K, Kim YR, Jacobs JS, Kumar V, Li Q, Irani K, Bahal R, Vikram A. γ Peptide Nucleic Acid-Based miR-122 Inhibition Rescues Vascular Endothelial Dysfunction in Mice Fed a High-Fat Diet. J Med Chem 2022; 65:3332-3342. [PMID: 35133835 PMCID: PMC8883473 DOI: 10.1021/acs.jmedchem.1c01831] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
![]()
The blood levels
of microRNA-122 (miR-122) is associated with the
severity of cardiovascular disorders, and targeting it with efficient
and safer miR inhibitors could be a promising approach. Here, we report
the generation of a γ-peptide nucleic acid (γPNA)-based
miR-122 inhibitor (γP-122-I) that rescues vascular endothelial
dysfunction in mice fed a high-fat diet. We synthesized diethylene
glycol-containing γP-122-I and found that its systemic administration
counteracted high-fat diet (HFD)-feeding-associated increase in blood
and aortic miR-122 levels, impaired endothelial function, and reduced
glycemic control. A comprehensive safety analysis established that
γP-122-I affects neither the complete blood count nor biochemical
tests of liver and kidney functions during acute exposure. In addition,
long-term exposure to γP-122-I did not change the overall adiposity,
or histology of the kidney, liver, and heart. Thus, γP-122-I
rescues endothelial dysfunction without any evidence of toxicity in vivo and demonstrates the suitability of γPNA technology
in generating efficient and safer miR inhibitors.
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Affiliation(s)
- Ravinder Reddy Gaddam
- Department of Internal Medicine, Carver College of Medicine University of Iowa, Iowa City, Iowa 52242, United States
| | - Karishma Dhuri
- Department of Pharmaceutical Sciences, University of Connecticut, Storrs, Connecticut 06269, United States
| | - Young-Rae Kim
- Department of Internal Medicine, Carver College of Medicine University of Iowa, Iowa City, Iowa 52242, United States
| | - Julia S Jacobs
- Department of Internal Medicine, Carver College of Medicine University of Iowa, Iowa City, Iowa 52242, United States
| | - Vikas Kumar
- Department of Pharmaceutical Sciences, University of Connecticut, Storrs, Connecticut 06269, United States
| | - Qiuxia Li
- Department of Internal Medicine, Carver College of Medicine University of Iowa, Iowa City, Iowa 52242, United States
| | - Kaikobad Irani
- Department of Internal Medicine, Carver College of Medicine University of Iowa, Iowa City, Iowa 52242, United States
| | - Raman Bahal
- Department of Pharmaceutical Sciences, University of Connecticut, Storrs, Connecticut 06269, United States
| | - Ajit Vikram
- Department of Internal Medicine, Carver College of Medicine University of Iowa, Iowa City, Iowa 52242, United States
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8
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MiRNA-122-5p inhibitor abolishes angiotensin II-mediated loss of autophagy and promotion of apoptosis in rat cardiofibroblasts by modulation of the apelin-AMPK-mTOR signaling. In Vitro Cell Dev Biol Anim 2022; 58:136-148. [PMID: 35133561 DOI: 10.1007/s11626-022-00651-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/19/2021] [Indexed: 11/05/2022]
Abstract
MicroRNAs (miRNAs) have emerged as essential regulators that could have pivotal roles in cardiac homeostasis and pathological remodeling of various cardiovascular diseases. We previously demonstrated that miRNA-122-5p overexpression exacerbated the process of vascular hypertrophy, fibrosis, and dysfunction in hypertensive rats and rat aortic adventitial fibroblasts. However, the exact roles and underlying mechanisms of miRNA-122-5p in myocardial fibroblasts remain largely unknown. In this work, neonatal rat cardiofibroblasts (CFs) were isolated and primarily cultured from the hearts of 2- to 3-d-old Sprague-Dawley rats. Stimulation of angiotensin II (Ang II) resulted in marked increases in cellular proliferation and migration and levels of collagen I, collagen III, CTGF, and TGF-β1 in cultured CFs. Furthermore, Ang II led to promoted expression of P62, Bax, and phosphorylated mTOR as well as downregulation of LC3II, beclin-1, and AMPK-phosphorylated levels, thereby contributing to imbalance of autophagy and apoptosis, and cellular injury in CFs, which were significantly ameliorated by treatment with miRNA-122-5p inhibitor. These changes were associated with decreased levels of collagen I, collagen III, CTGF, and TGF-β1. Furthermore, Ang II-induced loss of autophagy and promotion of apoptosis in CFs were prevented by the treatment with Pyr1-apelin-13 or AMPK agonist AICAR or mTOR inhibitor rapamycin, respectively. In contrast, administration of miRNA-122-5p mimics and autophagy inhibitor 3-methylademine reversed beneficial roles of Pyr1-apelin-13. Collectively, these data indicated that miRNA-122-5p is an essential regulator of autophagy and apoptosis in rat CFs via the apelin/AMPK/mTOR signaling pathway, which may be potentially used as a therapeutic target in myocardial fibrosis and related diseases.
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Kang J, Song Y, Zhang Z, Wang S, Lu Y, Liu X. Identification of Key microRNAs in Diabetes Mellitus Erectile Dysfunction Rats with Stem Cell Therapy by Bioinformatic Analysis of Deep Sequencing Data. World J Mens Health 2022; 40:663-677. [PMID: 35021304 PMCID: PMC9482859 DOI: 10.5534/wjmh.210147] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 09/16/2021] [Accepted: 09/30/2021] [Indexed: 11/15/2022] Open
Abstract
PURPOSE Diabetes mellitus erectile dysfunction (DMED) is a common resulting complication of diabetes. Studies have shown mesenchymal stem cell (MSC)-based therapy was beneficial in alleviating erectile function of DMED rats. While the pathogenesis of DMED and the mechanism MSCs actions are unclear. MATERIALS AND METHODS We constructed a rat model of DMED with or without intracavernous injection of MSCs, and performed microRNA (miRNA) sequencing of corpora cavernosa tissues. RESULTS We identified three overlapping differentially expressed miRNAs (rno-miR-1298, rno-miR-122-5p, and rno-miR-6321) of the normal control group, DMED group, and DMED+MSCs group. We predicted 285 target genes of three miRNAs through RNAhybrid and miRanda database and constructed a miRNA-target gene network through Cytoscape. Next, we constructed protein-protein interaction networks through STRING database and identified the top 10 hub genes with highest connectivity scores. Five GO terms including cellular response to growth factor stimulus (GO:0071363), ossification (GO:0001503), response to steroid hormone (GO:0048545), angiogenesis (GO:0001525), positive regulation of apoptotic process (GO:0043065), and one Reactome pathway (Innate Immune System) were significantly enriched by 10 hub genes using the Metascape database. We selected the GSE2457 dataset to validate the expression of hub genes and found only the expression of B4galt1 was statistically different (p<0.001). B4galt1 was highly expressed in penile tissues of diabetic rats and would be negatively regulated by rno-miR-1298. CONCLUSIONS Three key miRNAs were identified in DMED rats with stem cell therapy and the miR-1298/B4GalT1 axis might exert function in stem cell therapy for ED.
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Affiliation(s)
- Jiaqi Kang
- Department of Urology, Tianjin Medical University General Hospital, Tianjin, China
| | - Yuxuan Song
- Department of Urology, Peking University People's Hospital, Beijing, China.,Biomedical Pioneering Innovation Center (BIOPIC), School of Life Sciences, Peking University, Beijing, China
| | - Zhexin Zhang
- Department of Urology, Tianjin Medical University General Hospital, Tianjin, China
| | - Shangren Wang
- Department of Urology, Tianjin Medical University General Hospital, Tianjin, China
| | - Yi Lu
- Department of Urology, Tianjin Medical University General Hospital, Tianjin, China
| | - Xiaoqiang Liu
- Department of Urology, Tianjin Medical University General Hospital, Tianjin, China.
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10
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Li B, Zhang Z, Fu Y. Anti-inflammatory effects of artesunate on atherosclerosis via miR-16-5p and TXNIP regulation of the NLRP3 inflammasome. ANNALS OF TRANSLATIONAL MEDICINE 2021; 9:1558. [PMID: 34790764 PMCID: PMC8576697 DOI: 10.21037/atm-21-4939] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Accepted: 10/16/2021] [Indexed: 12/21/2022]
Abstract
Background Atherosclerosis (AS) is chronic inflammatory arterial disorder. Artesunate could exhibit anti-inflammatory activity in AS, but its role in AS is still in its incipient stage. In this study, we explored the anti-inflammatory effect of artesunate in AS and its underlying mechanism. Methods We isolated CD14+ monocytes from peripheral blood (PB) of 115 coronary heart disease (CHD) patients and 33 non-CHD patients confirmed by coronary angiography. Phorbol myristate acetate (PMA) was used to induce the differentiation of THP-1 monocytes to macrophages. Cells were treated with artesunate at a final concentration of 2.5, 5 or 10 µmol/L. The activation of NLRP3 inflammasome was assessed by immunoblotting of apoptosis-associated speck-like protein containing caspase recruitment domain (ASC). The expression of pro-caspase-1/pro-interleukin (IL)-1β/pro-IL-18 and their mature forms was measured using immunoblotting. A rat model of AS was induced by vitamin D3 (VD3) and a 21-day high-fat diet. Results Downregulated miR-16-5p and upregulated thioredoxin-interacting protein (TXNIP) was determined in CD14+ monocytes from CHD patients and associated with disease severity. Artesunate abrogated the activation of NLRP3 inflammasome in the presence of inflammasome activators in cultured macrophages. Artesunate reduced TXNIP expression and impaired the interaction between TXNIP and NLRP3, thereby inhibiting release of inflammatory cytokines and ASC production in cultured macrophages. In addition, miR-16-5p negatively regulated the messenger RNA (mRNA) of TXNIP. Artesunate increased the expression of miR-16-5p in a dose-dependent manner, and inhibition of miR-16-5p enhanced the secretion of inflammatory cytokines. Our in vivo experiments also demonstrated that artesunate reduced lipid accumulation, atherosclerotic plaque formation, and antagonized inflammation in a dose-dependent manner by upregulating miR-16-5p. Conclusions In summary, the present study unveiled a mechanism underlying the anti-inflammatory role of artesunate in AS.
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Affiliation(s)
- Bo Li
- School of Life Science and Technology, Harbin Institute of Technology, Harbin, China.,Department of Endocrinology, the Fourth Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Zheqi Zhang
- Department of Endocrinology, the Fourth Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Yili Fu
- School of Life Science and Technology, Harbin Institute of Technology, Harbin, China.,State Key Laboratory of Robotics and Systems, Harbin Institute of Technology, Harbin, China
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11
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Lou X, Wang D, Gu Z, Li T, Ren L. Mechanism of microRNA regulating the progress of atherosclerosis in apoE-deficient mice. Bioengineered 2021; 12:10994-11006. [PMID: 34775883 PMCID: PMC8809940 DOI: 10.1080/21655979.2021.2004979] [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] [Indexed: 12/24/2022] Open
Abstract
MicroRNAs play important roles in atherosclerogenesis and are important novel pharmaceutic targets in atherosclerosis management. The whole spectrum of miRNAs dysregulation is still under intense investigation. This study intends to identify more novel dysregulated microRNAs in atherosclerotic mice. Half of eight-week-old male ApoE-/- mice were fed with high-fat-diet for 12 weeks as a model mice, and the remaining half of ApoE-/- mice were fed with a normal-diet as a control. A serum lipid profile was performed with ELISA kits, and atherosclerotic lesions were assessed. Aortic tissues were dissected for gene expression profiling using a Multispecies miRNA 4.0 Array, and significant differentially expressed miRNAs were identified with fold change ≥ 2 and p < 0.05. Real-time quantitative PCR was used to validate microarray gene expression data on selected genes. Predicted target genes were extracted and subjected to bioinformatic analysis for molecular function and pathway enrichment analysis. Model mice showed a 15.32% atherosclerotic lesion compared to 1.52% in the control group. A total of 25 significant differentially expressed microRNAs were identified, with most of them (24/25) downregulated. Real-time quantitative PCR confirmed the GeneChip data. Bioinformatic analysis of predicted target genes identified high involvement of the PI3K/Akt/mTOR signaling pathway. Microarray profiling of miRNAs in high-fat-fed Model mice identified 25 differentially expressed miRNAs, including some novel miRNAs, and the PI3K/Akt/mTOR signaling pathway is highly enriched in the predicted target genes. The novel identified dysregulated miRNAs suggest a broader spectrum of miRNA dysregulation in the progression of atherosclerosis and provide more research and therapeutic targets for atherosclerosis.
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Affiliation(s)
- Xiaoqian Lou
- Department of Experimental Pharmacology and Toxicology, School of Pharmacy, Jilin University, Changchun, Jilin, China.,Department of Endocrinology, The First Hospital of Jilin University, Changchun, Jilin, People's Republic of China
| | - Dawei Wang
- Department of Emergency, The First Hospital of Jilin University, Changchun, Jilin, People's Republic of China
| | - Zehui Gu
- Department of Pathology, The Third Affiliated Hospital of Jinzhou Medical University, Jinzhou, People's Republic of China
| | - Tengteng Li
- Department of Experimental Pharmacology and Toxicology, School of Pharmacy, Jilin University, Changchun, Jilin, China
| | - Liqun Ren
- Department of Experimental Pharmacology and Toxicology, School of Pharmacy, Jilin University, Changchun, Jilin, China
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12
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Bai Y, Wang M, Yang Y, Liu X, Chen Q, Guo Z. Inhibition of the miR-193b-3p protects against oxidized low-density lipoprotein-induced HUVECs injury by upregulating ALDH2. Cell Biol Int 2021; 46:192-202. [PMID: 34719090 DOI: 10.1002/cbin.11720] [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] [Received: 03/13/2021] [Revised: 10/14/2021] [Accepted: 10/23/2021] [Indexed: 12/18/2022]
Abstract
Atherosclerosis (AS) is the most dangerous factor for human death, which is a lipid-driven chronic inflammatory disorder of the arteries. Growing evidence has showed that microRNAs play an important role in AS. However, the role of mir-193b-3p in atherosclerosis has been poorly studied to date. Therefore, we focused on the potential role of miR-193b-3p in atherosclerosis. The expressions of miR-193b-3p in the serum of AS patients were detected. We also established an oxidized low density lipoprotein (ox-LDL)-induced human umbilical vein endothelial cells (HUVECs) apoptosis model in vitro. The mRNA and protein levels of target molecules were detected by RT-qPCR and Western blotting. Apoptosis of HUVECs was determined by Annexin V/PI staining on a flow cytometry. The potential molecular targets of miR-193b-3p were investigated by applying such technologies as dual-luciferase reporter and RIP assay. Our study showed that miR-193b-3p expression level was significantly lower in AS patients than controls. ROC curve analysis showed that the areas under the curve (AUC) of plasma miR-193b-3p was 0.859. We also found that miR-193b-3p was decreased in ox-LDL-induced HUVECs and knockdown of miR-193b-3p suppressed ox-LDL-induced HUVECs injury. By using bioinformatics analysis, aldehyde dehydrogenase (ALDH2) was predicted as a downstream target of miR-193b-3p. The ALDH2 gene is also involved in the development of atherosclerosis. Meanwhile, inhibition of miR-193b-3p and ALDH2 protects ox-LDL-induced HUVECs against endoplasmic-reticulum (ER) stress. In conclusion, inhibition of miR-193b-3p was able to suppress ox-LDL-induced injury in AS through targeting ALDH2 and reducing ER stress.
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Affiliation(s)
- Yunpeng Bai
- Department of cardiovascular surgery, Chest Hospital, Tianjin University, Tianjin, China.,Department of cardiovascular surgery, Tianjin Chest Hospital, Tianjin Medical University, Tianjin, China
| | - Mei Wang
- Department of Dermatology, Tianjin First Central Hospital, Tianjin, China.,Graduate School of Tianjin Medical University, Tianjin, China
| | - Yin Yang
- Department of cardiovascular surgery, Tianjin Chest Hospital, Tianjin Medical University, Tianjin, China
| | - Xiankun Liu
- Department of cardiovascular surgery, Tianjin Chest Hospital, Tianjin Medical University, Tianjin, China.,Graduate School of Tianjin Medical University, Tianjin, China
| | - Qingliang Chen
- Department of cardiovascular surgery, Tianjin Chest Hospital, Tianjin Medical University, Tianjin, China
| | - Zhigang Guo
- Department of cardiovascular surgery, Tianjin Chest Hospital, Tianjin Medical University, Tianjin, China
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13
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Yin Y, Cheng Z, Fu X, Ji S. MicroRNA-375-3p is implicated in carotid artery stenosis by promoting the cell proliferation and migration of vascular smooth muscle cells. BMC Cardiovasc Disord 2021; 21:518. [PMID: 34702176 PMCID: PMC8549333 DOI: 10.1186/s12872-021-02326-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 10/13/2021] [Indexed: 01/15/2023] Open
Abstract
Background Atherosclerosis is the main cause of carotid artery stenosis (CAS) which mostly occurs in the elderly. In this paper, the expression level of miR-375-3p in asymptomatic CAS patients and its diagnostic value for asymptomatic CAS were investigated, and the effects of miR-375-3p on the cell proliferation and migration of vascular smooth muscle cells (VSMCs) was further explored. Methods
98 healthy subjects and 101 asymptomatic CAS patients were participated in this study. qRT-PCR was used to measure the expression level of serum miR-375-3p, and the ROC curve was established to evaluate the predictive value of miR-375-3p for asymptomatic CAS. After transfection with miR-375-3p mimic or inhibitor in vitro, cell proliferation and migration were detected by CCK-8 assay, colony formation assay, and Transwell assay, respectively. The levels of TNF-α, IL-1β, IL-6 were detected by ELISA. Western blot was used to detect the protein expression of XIAP. Finally, luciferase reporter gene assay was applied to assess the interaction of miR-375-3p with target genes. Results The expression level of serum miR-375-3p in asymptomatic CAS patients was significantly higher than that in healthy controls, and the AUC value of ROC curve was 0.888. The sensitivity and specificity were 80.2 and 86.7%, respectively, indicating that miR-375-3p had high diagnostic value for asymptomatic CAS. In vitro cell experiments showed that up-regulation of miR-375-3p significantly promoted the proliferation and migration of VSMCs, and also promoted the generation of inflammatory factors and phenotypic transformation of VSMCs. Luciferase reporter gene assay confirmed that XIAP was a target gene of miR-375-3p and was negatively regulated by miR-375-3p. Conclusions In this study, miR-375-3p may have a clinical diagnostic value for asymptomatic CAS patients which need further validation. Increased miR-375-3p levels in CAS may be associated with increased proliferation and migration of VSMCs via downregulation of the apoptosis inducing gene XIAP. Supplementary Information The online version contains supplementary material available at 10.1186/s12872-021-02326-6.
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Affiliation(s)
- Yuxia Yin
- Department of Neurosurgery, Yidu Central Hospital of Weifang, No.4138, South Linglongshan Road, Weifang, 262500, Shandong, China
| | - Zhen Cheng
- Department of Neurosurgery, Yidu Central Hospital of Weifang, No.4138, South Linglongshan Road, Weifang, 262500, Shandong, China
| | - Xiaoling Fu
- Department of Neurosurgery, Yidu Central Hospital of Weifang, No.4138, South Linglongshan Road, Weifang, 262500, Shandong, China
| | - Shishun Ji
- Department of Neurosurgery, Yidu Central Hospital of Weifang, No.4138, South Linglongshan Road, Weifang, 262500, Shandong, China.
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14
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Kianmehr A, Qujeq D, Bagheri A, Mahrooz A. Oxidized LDL-regulated microRNAs for evaluating vascular endothelial function: molecular mechanisms and potential biomarker roles in atherosclerosis. Crit Rev Clin Lab Sci 2021; 59:40-53. [PMID: 34523391 DOI: 10.1080/10408363.2021.1974334] [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: 01/20/2023]
Abstract
As a simple monolayer, vascular endothelial cells can respond to physicochemical stimuli. In addition to promoting the formation of foam cells, oxidized low-density lipoprotein (ox-LDL) contributes to the atherosclerotic process through different mechanisms, including endothelial cell dysfunction. As conserved noncoding RNAs, microRNAs (miRNAs) naturally lie in different genomic positions and post-transcriptionally regulate the expression of many genes. They participate in integrated networks formed under stress to maintain cellular homeostasis, vascular inflammation, and metabolism. These small RNAs constitute therapeutic targets in different diseases, including atherosclerosis, and their role as biomarkers is crucial given their detectability even years before the emergence of diseases. This review was performed to investigate the role of ox-LDL-regulated miRNAs in atherosclerosis, their molecular mechanisms, and their application as biomarkers of vascular endothelial cell dysfunction.
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Affiliation(s)
- Anvarsadat Kianmehr
- Medical Cellular and Molecular Research Center, Golestan University of Medical Sciences, Gorgan, Iran.,Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Golestan University of Medical Sciences, Gorgan, Iran
| | - Durdi Qujeq
- Cellular and Molecular Biology Research Center (CMBRC), Health Research Institute, Babol University of Medical Sciences, Babol, Iran
| | - Abouzar Bagheri
- Molecular and Cell Biology Research Center, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran.,Department of Clinical Biochemistry and Medical Genetics, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Abdolkarim Mahrooz
- Molecular and Cell Biology Research Center, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran.,Department of Clinical Biochemistry and Medical Genetics, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
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15
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Abstract
PURPOSE OF REVIEW Non-coding RNAs (ncRNAs) including microRNAs (miRNAs) and circular RNAs (circRNAs) are pivotal regulators of mRNA and protein expression that critically contribute to cardiovascular pathophysiology. Although little is known about the origin and function of such ncRNAs, they have been suggested as promising biomarkers with powerful therapeutic value in cardiovascular disease (CVD). In this review, we summarize the most recent findings on ncRNAs biology and their implication on cholesterol homeostasis and lipoprotein metabolism that highlight novel therapeutic avenues for treating dyslipidemia and atherosclerosis. RECENT FINDINGS Clinical and experimental studies have elucidated the underlying effects that specific miRNAs impose both directly and indirectly regulating circulating high-density lipoprotein (HDL), low-density lipoprotein (LDL), and very low-density lipoprotein (VLDL) metabolism and cardiovascular risk. Some of these relevant miRNAs include miR-148a, miR-128-1, miR-483, miR-520d, miR-224, miR-30c, miR-122, miR-33, miR-144, and miR-34. circRNAs are known to participate in a variety of physiological and pathological processes due to their abundance in tissues and their stage-specific expression activation. Recent studies have proven that circRNAs may be considered targets of CVD as well. Some of these cirRNAs are circ-0092317, circ_0003546, circ_0028198, and cirFASN that have been suggested to be strongly involved in lipoprotein metabolism; however, their relevance in CVD is still unknown. MicroRNA and cirRNAs have been proposed as powerful therapeutic targets for treating cardiometabolic disorders including atherosclerosis. Here, we discuss the recent findings in the field of lipid and lipoprotein metabolism underscoring the novel mechanisms by which some of these ncRNAs influence lipoprotein metabolism and CVD.
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16
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Chen H, Liu X, Wu Y, Wu X, Wen X, Lu Y, Zhao X. Apoptosis in HUVECs induced by microRNA-616-3p via X-linked inhibitor of apoptosis protein targeting. Exp Ther Med 2021; 21:661. [PMID: 33968191 PMCID: PMC8097190 DOI: 10.3892/etm.2021.10093] [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: 05/12/2020] [Accepted: 02/16/2021] [Indexed: 12/30/2022] Open
Abstract
Atherosclerosis causes stroke and coronary heart disease and is associated with a high mortality rate worldwide. However, the pathogenesis of atherosclerosis remains unclear. Endothelial cell apoptosis is one of the early changes observed in atherosclerosis. Previous studies have found that microRNA (miR)-616-3p may be involved in the development of atherosclerosis, but the specific mechanism is not clear. The present study aimed to investigate whether miR-616-3p is involved in endothelial cell apoptosis and its underlying mechanism. The present study demonstrated that compared with normal HUVECs, HUVECs treated with oxidized low-density lipoprotein expressed higher miR-616-3p and lower X-linked inhibitor of apoptosis protein (XIAP) levels. In the present study, HUVECs were transfected with miR-616-3p mimic and Cell Counting Kit-8 (CCK-8), flow cytometry and TUNEL staining assays demonstrated that compared with miR-616-3p mimic control, the miR-616-3p mimic promoted HUVEC apoptosis. In addition, using StarBase 3.0 for bioinformatics analysis it was predicted that miR-616-3p may bind to the 3'untranslated region (UTR) of XIAP mRNA. The present study performed the CCK-8, flow cytometry, TUNEL staining and dual-luciferase reporter assays and demonstrated that miR-616-3p binds to the 3'UTR of the XIAP mRNA and inhibits its expression and that this further promotes apoptosis in HUVECs. In addition, western blotting demonstrated that compared with miR-616-3p mimic control, the miR-616-3p mimic increases the level of cleaved caspase-3 in HUVECs. In summary, the present study demonstrated that miR-616-3p can directly inhibit the expression of XIAP mRNA by targeting its 3'UTR which promoted apoptosis in HUVECs. miR-616-3p and XIAP may be used as therapeutic targets of atherosclerosis in the future.
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Affiliation(s)
- Hua Chen
- Department of Cardiology, Inner Mongolia People's Hospital, Hohhot, Inner Mongolia 010000, P.R. China
| | - Xi Liu
- Department of Cardiology, Inner Mongolia People's Hospital, Hohhot, Inner Mongolia 010000, P.R. China
| | - Yun Wu
- Department of Cardiology, Inner Mongolia People's Hospital, Hohhot, Inner Mongolia 010000, P.R. China
| | - Xiayin Wu
- Department of Cardiology, Inner Mongolia People's Hospital, Hohhot, Inner Mongolia 010000, P.R. China
| | - Xiaoli Wen
- Department of Cardiology, Inner Mongolia People's Hospital, Hohhot, Inner Mongolia 010000, P.R. China
| | - Yanan Lu
- Department of Cardiology, Inner Mongolia People's Hospital, Hohhot, Inner Mongolia 010000, P.R. China
| | - Xingsheng Zhao
- Department of Cardiology, Inner Mongolia People's Hospital, Hohhot, Inner Mongolia 010000, P.R. China
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17
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Micro-RNA 122 and micro-RNA 96 affected human osteosarcoma biological behavior and associated with prognosis of patients with osteosarcoma. Biosci Rep 2021; 40:226707. [PMID: 33078195 PMCID: PMC7736625 DOI: 10.1042/bsr20201529] [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: 05/06/2020] [Revised: 07/20/2020] [Accepted: 07/29/2020] [Indexed: 11/17/2022] Open
Abstract
Osteosarcoma (OS) is the most common bone malignancy in both children and adolescents. In the present study, we aimed to explore the association of miRNA-122 and miRNA-96 expression with the clinical characteristics and prognosis of patients with osteosarcoma. The expression of miRNA-122 and miRNA-96 in human osteosarcoma cell lines and tissues were detected in the present study. Reverse transcriptase-PCR (RT-PCR) was used to determine the expression levels of miRNA-122 and miRNA-96 in 68 human OS samples. We found that MiRNA-122 and miRNA-96 were widely up-regulated in osteosarcoma, gastric cancer and pancreatic cancer. In HOS, Saos-2 and U2OS osteosarcoma cells, miRNA-122 and miRNA-96 were up-regulated significantly, while down-regulated in MG-63 cells. After further investigation, we found that miRNA-122 and miRNA-96 concentrations were significantly higher in the tumor tissues than those in the normal tissues (P<0.01). Moreover, the cell proliferation of LV-miRNA-122-RNAi and LV-miRNA-96-RNAi transfected SaOS2 was significantly decreased compared with the LV- miRNA-122-RNAi-CN and LV- miRNA-96-RNAi group. After adjusting for competing risk factors, we found combined high miRNA-122 and miRNA-96 expression was identified as independent predictor of overall survival.
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18
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Zhang F, Cheng N, Du J, Zhang H, Zhang C. MicroRNA-200b-3p promotes endothelial cell apoptosis by targeting HDAC4 in atherosclerosis. BMC Cardiovasc Disord 2021; 21:172. [PMID: 33845782 PMCID: PMC8042726 DOI: 10.1186/s12872-021-01980-0] [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: 10/18/2020] [Accepted: 04/01/2021] [Indexed: 12/31/2022] Open
Abstract
Background Epicardial adipose tissue (EAT) shares the same microcirculation with coronary arteries through coronary arteries branches, and contributes to the development of atherosclerosis. MicroRNAs (miRNAs) are involved in the formation of atherosclerosis. However, the alteration of miRNA profile in EAT during atherosclerosis is still uncovered. Methods The miRNA expression profiles of EAT from non-coronary atherosclerosis disease (CON, n = 3) and coronary atherosclerosis disease (CAD, n = 5) patients was performed to detect the differentially expressed miRNA. Then the expression levels of miRNA in other CON (n = 5) and CAD (n = 16) samples were confirmed by realtime-PCR. miR-200b-3p mimic was used to overexpress the miRNA in HUVECs. The apoptosis of HUVECs cells was induced by H2O2 and ox-LDL, and detected by Annexin V/PI Staining, Caspase 3/7 activity and the expression of BCL-2 and BAX. Results 250 miRNAs were differentially expressed in EAT from CAD patients, which were associated with metabolism, extracellular matrix and inflammation process. Among the top 20 up-regulated miRNAs, the expression levels of miR-200 family members (hsa-miR-200b/c-3p, miR-141-3p and miR-429), which were rich in endothelial cells, were increased in EAT from CAD patients significantly. Upregulation of miR-200 family members was dependent on the oxidative stress. The overexpression of miR-200b-3p could promote endothelial cells apoptosis under oxidative stress by targeting HDAC4 inhibition. Conclusions Our study suggests that EAT derived miR-200b-3p promoted oxidative stress induced endothelial cells damage by targeting HDAC4, which may provide a new and promising therapeutic target for AS. Supplementary Information The online version contains supplementary material available at 10.1186/s12872-021-01980-0.
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Affiliation(s)
- Fan Zhang
- Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Naixuan Cheng
- Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Jie Du
- Beijing Anzhen Hospital, Capital Medical University, Beijing, China.,Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing, China.,Beijing Institute of Heart, Lung and Blood Vessel Diseases, Beijing, 100029, China
| | - Haibo Zhang
- Beijing Anzhen Hospital, Capital Medical University, Beijing, China.
| | - Congcong Zhang
- Beijing Anzhen Hospital, Capital Medical University, Beijing, China. .,Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing, China. .,Beijing Institute of Heart, Lung and Blood Vessel Diseases, Beijing, 100029, China.
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19
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Wang J, Dong G, Chi W, Nie Y. MiR-96 promotes myocardial infarction-induced apoptosis by targeting XIAP. Biomed Pharmacother 2021; 138:111208. [PMID: 33752931 DOI: 10.1016/j.biopha.2020.111208] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 12/01/2020] [Accepted: 12/26/2020] [Indexed: 12/12/2022] Open
Abstract
Acute myocardial infarction (AMI) has becoming a common leading cause of sudden death worldwide. MiR-96 has been identified that can target anti-apoptotic related genes in various human diseases. However, its role in AMI remains unclear. In this study, we found that miR-96 was significantly upregulated in the ischemic heart of MI mice (mice with myocardial infarction) and also in the H2O2-treated neonatal rat ventricular cardiomyocytes (CMs). In response H2O2, miR-96 inhibitor could significantly promote cell viability and reduce cell apoptosis of CMs, and inhibit the expression of Cleaved caspase-3 and Bax, while promote Bcl-2 expression. In addition, downregulation of miR-96 remarkedly reduced the infarct size and the percentages of apoptotic cells in the heart tissues of MI mice, and then protected against the damaged cardiac function. Moreover, we identified that XIAP (X-linked inhibitor of apoptosis) acted as a direct target gene of miR-96, meanwhile si-XIAP could obviously reverse miR-96 inhibitor induced protective effect in H2O2-treated CMs Taken together, our study demonstrated that miR-96 promoted AMI progression by directly targeting XIAP, and inhibiting the anti-apoptotic function of XIAP (Graphical abstract), which provided a novel therapeutic target for AMI treatment.
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Affiliation(s)
- Jianxiu Wang
- Hiser Medical Center of Qingdao, Qingdao City, Shandong Province, 266033, PR China.
| | - Guiling Dong
- Hiser Medical Center of Qingdao, Qingdao City, Shandong Province, 266033, PR China
| | - Weifeng Chi
- Hiser Medical Center of Qingdao, Qingdao City, Shandong Province, 266033, PR China
| | - Yingying Nie
- Hiser Medical Center of Qingdao, Qingdao City, Shandong Province, 266033, PR China.
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20
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Liao L, Yang Q, Li H, Meng R, Li Y. miR-454-3p prevents ox-LDL-induced apoptosis in HAECs by targeting TRPC3. Exp Ther Med 2021; 21:323. [PMID: 33732296 PMCID: PMC7905327 DOI: 10.3892/etm.2021.9754] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Accepted: 07/29/2020] [Indexed: 12/18/2022] Open
Abstract
Endothelial-cell (EC) apoptosis serves a vital role in the pathogenesis of atherosclerosis. Accumulating evidence has implicated microRNA (miRNA/miR) dysregulation in EC apoptosis. Although the role of miR-454-3p in carcinogenesis has been well documented, its role and underlying mechanism in EC apoptosis remain unclear. In the present study, the results revealed that miR-454-3p expression was substantially downregulated in human aortic endothelial cells (HAECs) following oxidized low-density lipoprotein (ox-LDL) treatment. miR-454-3p suppression significantly attenuated the viability of HAECs, while miR-454-3p overexpression repressed ox-LDL-induced HAEC apoptosis. Bioinformatics analysis and luciferase reporter assays revealed that transient receptor potential canonical 3 (TRPC3), a key regulator of atherosclerosis development, was the direct target of miR-454-3p. Furthermore, TRPC3 overexpression abolished the anti-apoptotic effect of miR-454-3p on HAECs. These results revealed a novel role of miR-454-3p in ox-LDL-induced apoptosis in HAECs.
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Affiliation(s)
- Luming Liao
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong 510280, P.R. China.,Department of Cardiovascular Internal Medicine, Guangdong Second Provincial General Hospital, Guangzhou, Guangdong 510317, P.R. China
| | - Qiaolan Yang
- Department of General Surgery, Guangdong Second Provincial General Hospital, Guangzhou, Guangdong 510317, P.R. China
| | - Hailiang Li
- Department of General Surgery, Guangdong Second Provincial General Hospital, Guangzhou, Guangdong 510317, P.R. China
| | - Rongsen Meng
- Department of Cardiovascular Internal Medicine, Guangdong Second Provincial General Hospital, Guangzhou, Guangdong 510317, P.R. China
| | - Yuntian Li
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong 510280, P.R. China.,Department of Cardiovascular Internal Medicine, Guangdong Second Provincial General Hospital, Guangzhou, Guangdong 510317, P.R. China
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21
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Inhibition of miR-122 reduced atherosclerotic lesion formation by regulating NPAS3-mediated endothelial to mesenchymal transition. Life Sci 2020; 265:118816. [PMID: 33278397 DOI: 10.1016/j.lfs.2020.118816] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 11/14/2020] [Accepted: 11/20/2020] [Indexed: 12/30/2022]
Abstract
AIMS Endothelial to mesenchymal transition (EndMT) is closely related to atherosclerosis. Herein, we aim to determine whether miR-122 is involved in EndMT and the underlying mechanism in atherosclerosis. MAIN METHODS qRT-PCR was performed to detect miR-122 expression in ApoE-/- mice and cellular EndMT model induced by H2O2. MiR-122 expression in vivo was modulated by lenti-virus injection and by genetic manipulation. Hematoxylin and eosin (HE) and Oil-red O staining were used to observe the plaque size and lipid accumulation in the aortic roots. F4/80 staining, elastin staining, and masson staining were used to observe the components of atherosclerotic lesions. MiR-122 expression in endothelial cells was modulated by transfection of miR-122 mimic and inhibitor. Western blotting and co-localization of endothelial markers (VE-cadherin, CD31) and mesenchymal markers (Vimentin, α-SMA) were carried out to determine EndMT. KEY FINDINGS MiR-122 was upregulated in the aortic intima and serum of ApoE-/- mice induced by HFD and in cellular EndMT model. Inhibition of miR-122 repressed the atherosclerotic plaque progression and vulnerable plaque formation in ApoE-/- mice. In vitro, endothelial cells acquired a spindle-shaped morphology accompanying decrease of the endothelial markers (VE-cadherin, CD31) and increase of the mesenchymal markers (Vimentin, α-SMA) in the presence of H2O2, which was inhibited by miR-122 inhibitor. Furthermore, NPAS3 functions as a target of miR-122, and NPAS3 silencing abolished the anti-EndMT effect of miR-122 inhibitor. SIGNIFICANCE Inhibition of miR-122 prevents atherosclerosis and regulates NPAS3-mediated EndMT, suggesting that miR-122 may be a novel target in the treatment of EndMT-associated diseases including atherosclerosis.
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22
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Wang H, Sugimoto K, Lu H, Yang WY, Liu JY, Yang HY, Song YB, Yan D, Zou TY, Shen S. HDAC1-mediated deacetylation of HIF1α prevents atherosclerosis progression by promoting miR-224-3p-mediated inhibition of FOSL2. MOLECULAR THERAPY-NUCLEIC ACIDS 2020; 23:577-591. [PMID: 33510945 PMCID: PMC7815465 DOI: 10.1016/j.omtn.2020.10.044] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Accepted: 10/30/2020] [Indexed: 12/20/2022]
Abstract
We intended to characterize functional relevance of microRNA (miR)-224-3p in endothelial cell (EC) apoptosis and reactive oxygen species (ROS) accumulation in atherosclerosis, considering also the integral involvement of histone deacetylase 1 (HDAC1)-mediated hypoxia-inducible factor-1α (HIF1α) deacetylation. The binding affinity between miR-224-3p and Fos-like antigen 2 (FOSL2) was predicted and validated. Furthermore, we manipulated miR-224-3p, FOSL2, HDAC1, and HIF1α expression in oxidized low-density lipoprotein (ox-LDL)-induced ECs, aiming to clarify their effects on cell activities, inflammation, and ROS level. Additionally, we examined the impact of miR-224-3p on aortic atherosclerotic plaque and lesions in a high-fat-diet-induced atherosclerosis model in ApoE−/− mice. Clinical atherosclerotic samples and ox-LDL-induced human aortic ECs (HAECs) exhibited low HDAC1/miR-224-3p expression and high HIF1α/FOSL2 expression. miR-224-3p repressed EC cell apoptosis, inflammatory responses, and intracellular ROS levels through targeting FOSL2. HIF1α reduced miR-224-3p expression to accelerate EC apoptosis and ROS accumulation. Moreover, HDAC1 inhibited HIF1α expression by deacetylation, which in turn enhanced miR-224-3p expression to attenuate EC apoptosis and ROS accumulation. miR-224-3p overexpression reduced atherosclerotic lesions in vivo. In summary, HDAC1 overexpression may enhance the anti-atherosclerotic and endothelial-protective effects of miR-224-3p-mediated inhibition of FOSL2 by deacetylating HIF1α, underscoring a novel therapeutic insight against experimental atherosclerosis.
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Affiliation(s)
- Hao Wang
- Stroke Center, the First Affiliated Hospital, Jinan University, Guangzhou 510630, P.R. China.,Department of Biochemistry and Genetics, Graduate School of Medicine, Chiba University, Chiba 260-8670, Japan
| | - Kazuo Sugimoto
- Department of Neurology, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, P.R. China.,Department of Biochemistry and Genetics, Graduate School of Medicine, Chiba University, Chiba 260-8670, Japan
| | - Hao Lu
- Stroke Center, the First Affiliated Hospital, Jinan University, Guangzhou 510630, P.R. China
| | - Wan-Yong Yang
- Stroke Center, the First Affiliated Hospital, Jinan University, Guangzhou 510630, P.R. China
| | - Ji-Yue Liu
- Stroke Center, the First Affiliated Hospital, Jinan University, Guangzhou 510630, P.R. China
| | - Hong-Yu Yang
- Stroke Center, the First Affiliated Hospital, Jinan University, Guangzhou 510630, P.R. China
| | - Yue-Bo Song
- Department of Neurology, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, P.R. China
| | - Dong Yan
- Department of Neurology, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, P.R. China
| | - Tian-Yu Zou
- Department of Encephalopathy, Heilongjiang Academy of Chinese Medical Sciences, Harbin 150001, P.R. China
| | - Si Shen
- Stroke Center, the First Affiliated Hospital, Jinan University, Guangzhou 510630, P.R. China
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23
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Plasma microRNA levels in childhood IgA vasculitis. Clin Rheumatol 2020; 40:1975-1981. [PMID: 33037530 DOI: 10.1007/s10067-020-05441-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 09/28/2020] [Accepted: 10/05/2020] [Indexed: 10/23/2022]
Abstract
INTRODUCTION Immunoglobulin A vasculitis (IgAV) is the most common form of childhood systemic vasculitis. It is mostly self-limiting and characterized by skin, joint, gastrointestinal tract, and kidney involvement. Microribonucleic acids (miRNAs) are 18-25 base-long non-coding RNA group acting on gene expression. They have been shown to be effective on the immune system studies to date. METHOD In our study, 24 IgAV children with skin and joint involvement and 24 healthy children were included. Five different miRNAs (miR-33, miR-34, miR-122, miR-204, and miR451) known to be expressed in plasma and related with autoimmunity pathogenesis were evaluated. miRNAs were compared between the active period of the disease, the post-treatment period, and the healthy group using the real-time PCR method. RESULTS Expression levels of miRNA-33 and miRNA-34 increased significantly in active period of the patients compare with inactive period and control groups. The expression levels of miRNA-122 and miRNA-204 decreased significantly in active period of the patients compare with other two groups. There was no significant difference in miRNA-451 levels. CONCLUSIONS With the experience we gained from our recent studies, we think that miRNA-204 may be a significant biomarker in autoimmune diseases. Our study is the first study between IgAV and miRNAs in children. More studies are needed to reveal this relationship. Key Points • This is the first paper to show the relationship between miRNAs and childhood IgAV. • It will provide a new perspective to evaluate the pathogenesis of the disease.
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Khanahmadi M, Manafi B, Tayebinia H, Karimi J, Khodadadi I. Downregulation of Sirt1 is correlated to upregulation of p53 and increased apoptosis in epicardial adipose tissue of patients with coronary artery disease. EXCLI JOURNAL 2020; 19:1387-1398. [PMID: 33250679 PMCID: PMC7689241 DOI: 10.17179/excli2020-2423] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Accepted: 10/01/2020] [Indexed: 12/31/2022]
Abstract
The higher expression level of p53 in epithelial adipose tissue (EAT) has previously been reported in atherosclerosis. Since we hypothesized that the expression of p53 is modulated by Sirt1, the aim of this study was to determine the expression levels of Sirt1 and p53 and to investigate their correlation to apoptosis in EAT of patients with coronary artery disease (CAD). Thirty-five patients with more than 50 % stenosis in at least one of the main coronary arteries were considered as CAD group while 29 patients with no clinical signs of atherosclerosis who underwent open-heart surgery for valve replacement were classified as control group. EAT biopsy samples were collected from all participants during surgery. Sirt1, p53, Bax, and Bcl-2 gene expression levels were determined in EAT by qRT-PCR and Western blotting was carried out to assess Sirt1 and p53 protein levels. Hematoxylin and eosin staining was used for histopathological analysis. mRNA and protein levels of Sirt1 in EAT were significantly lower in patients with CAD compared with control group, whereas CAD patients showed greater p53 gene and protein expressions. In addition, inverse correlations were observed between Sirt1 and p53 at both mRNA and protein levels. The Bax and ratio of Bax/Bcl-2 gene expressions were higher in CAD group, but no difference was observed in Bcl-2 expression. Histopathological analysis showed apoptotic bodies and infiltrated immune cells in EAT of CAD group. Our results suggest that the Sirt1-p53 axis may involve in atherosclerosis by promotion of apoptosis.
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Affiliation(s)
- Mahdieh Khanahmadi
- Department of Clinical Biochemistry, Faculty of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Babak Manafi
- Department of Surgery, Faculty of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Heidar Tayebinia
- Department of Clinical Biochemistry, Faculty of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Jamshid Karimi
- Department of Clinical Biochemistry, Faculty of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Iraj Khodadadi
- Department of Clinical Biochemistry, Faculty of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
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Zareba L, Fitas A, Wolska M, Junger E, Eyileten C, Wicik Z, De Rosa S, Siller-Matula JM, Postula M. MicroRNAs and Long Noncoding RNAs in Coronary Artery Disease: New and Potential Therapeutic Targets. Cardiol Clin 2020; 38:601-617. [PMID: 33036721 DOI: 10.1016/j.ccl.2020.07.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Noncoding RNAs (ncRNAs), including long noncoding RNAs and microRNAs, play an important role in coronary artery disease onset and progression. The ability of ncRNAs to simultaneously regulate many target genes allows them to modulate various key processes involved in atherosclerosis, including lipid metabolism, smooth muscle cell proliferation, autophagy, and foam cell formation. This review focuses on the therapeutic potential of the most important ncRNAs in coronary artery disease. Moreover, various other promising microRNAs and long noncoding RNAs that attract substantial scientific interest as potential therapeutic targets in coronary artery disease and merit further investigation are presented.
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Affiliation(s)
- Lukasz Zareba
- Department of Experimental and Clinical Pharmacology, Medical University of Warsaw, Center for Preclinical Research and Technology CEPT, Banacha 1B Str., Warsaw 02-097, Poland
| | - Alex Fitas
- Department of Experimental and Clinical Pharmacology, Medical University of Warsaw, Center for Preclinical Research and Technology CEPT, Banacha 1B Str., Warsaw 02-097, Poland
| | - Marta Wolska
- Department of Experimental and Clinical Pharmacology, Medical University of Warsaw, Center for Preclinical Research and Technology CEPT, Banacha 1B Str., Warsaw 02-097, Poland
| | - Eva Junger
- Department of Experimental and Clinical Pharmacology, Medical University of Warsaw, Center for Preclinical Research and Technology CEPT, Banacha 1B Str., Warsaw 02-097, Poland
| | - Ceren Eyileten
- Department of Experimental and Clinical Pharmacology, Medical University of Warsaw, Center for Preclinical Research and Technology CEPT, Banacha 1B Str., Warsaw 02-097, Poland
| | - Zofia Wicik
- Department of Experimental and Clinical Pharmacology, Medical University of Warsaw, Center for Preclinical Research and Technology CEPT, Banacha 1B Str., Warsaw 02-097, Poland; Centro de Matemática, Computação e Cognição, Universidade Federal do ABC, Alameda da Universidade, s/n-Anchieta, São Paulo 09606-045, Brazil
| | - Salvatore De Rosa
- Division of Cardiology, Department of Medical and Surgical Sciences, "Magna Graecia" University, Viale Europa, Catanzaro 88100, Italy
| | - Jolanta M Siller-Matula
- Department of Experimental and Clinical Pharmacology, Medical University of Warsaw, Center for Preclinical Research and Technology CEPT, Banacha 1B Str., Warsaw 02-097, Poland; Department of Internal Medicine II, Division of Cardiology, Medical University of Vienna, Spitalgasse 23, Vienna 1090, Austria
| | - Marek Postula
- Department of Experimental and Clinical Pharmacology, Medical University of Warsaw, Center for Preclinical Research and Technology CEPT, Banacha 1B Str., Warsaw 02-097, Poland; Longevity Center, Warsaw, Poland.
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Liu Y, Song JW, Lin JY, Miao R, Zhong JC. Roles of MicroRNA-122 in Cardiovascular Fibrosis and Related Diseases. Cardiovasc Toxicol 2020; 20:463-473. [PMID: 32856216 PMCID: PMC7451782 DOI: 10.1007/s12012-020-09603-4] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Accepted: 08/18/2020] [Indexed: 02/07/2023]
Abstract
Fibrotic diseases cause annually more than 800,000 deaths worldwide, where of the majority accounts for cardiovascular fibrosis, which is characterized by endothelial dysfunction, myocardial stiffening and reduced dispensability. MicroRNAs (miRs), small noncoding RNAs, play critical roles in cardiovascular dysfunction and related disorders. Intriguingly, there is a critical link among miR-122, cardiovascular fibrosis, sirtuin 6 (SIRT6) and angiotensin-converting enzyme 2 (ACE2), which was recently identified as a coreceptor for SARS-CoV2 and a negative regulator of the rennin-angiotensin system. MiR-122 overexpression appears to exacerbate the angiotensin II-mediated loss of autophagy and increased inflammation, apoptosis, extracellular matrix deposition, cardiovascular fibrosis and dysfunction by modulating the SIRT6-Elabela-ACE2, LGR4-β-catenin, TGFβ-CTGF and PTEN-PI3K-Akt signaling pathways. More importantly, the inhibition of miR-122 has proautophagic, antioxidant, anti-inflammatory, anti-apoptotic and antifibrotic effects. Clinical and experimental studies clearly demonstrate that miR-122 functions as a crucial hallmark of fibrogenesis, cardiovascular injury and dysfunction. Additionally, the miR-122 level is related to the severity of hypertension, atherosclerosis, atrial fibrillation, acute myocardial infarction and heart failure, and miR-122 expression is a risk factor for these diseases. The miR-122 level has emerged as an early-warning biomarker cardiovascular fibrosis, and targeting miR-122 is a novel therapeutic approach against progression of cardiovascular dysfunction. Therefore, an increased understanding of the cardiovascular roles of miR-122 will help the development of effective interventions. This review summarizes the biogenesis of miR-122; regulatory effects and underlying mechanisms of miR-122 on cardiovascular fibrosis and related diseases; and its function as a potential specific biomarker for cardiovascular dysfunction.
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Affiliation(s)
- Ying Liu
- Heart Center and Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital Affiliated to Capital Medical University, Beijing, 100020, China.,Medical Research Center, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100020, China
| | - Jia-Wei Song
- Heart Center and Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital Affiliated to Capital Medical University, Beijing, 100020, China
| | - Jian-Yu Lin
- Department of Comprehensive Surgery, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100020, China
| | - Ran Miao
- Heart Center and Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital Affiliated to Capital Medical University, Beijing, 100020, China. .,Medical Research Center, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100020, China.
| | - Jiu-Chang Zhong
- Heart Center and Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital Affiliated to Capital Medical University, Beijing, 100020, China. .,Medical Research Center, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100020, China.
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Liu D, Song J, Ji X, Liu Z, Li T, Hu B. PRDM16 Upregulation Induced by MicroRNA-448 Inhibition Alleviates Atherosclerosis via the TGF-β Signaling Pathway Inactivation. Front Physiol 2020; 11:846. [PMID: 32848826 PMCID: PMC7431868 DOI: 10.3389/fphys.2020.00846] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Accepted: 06/24/2020] [Indexed: 12/14/2022] Open
Abstract
The dysregulated expression of microRNAs (miRs) has been associated with pathological and physiological processes of atherosclerosis (AS). In addition, PR domain-containing 16 (PRDM16), a transcriptional mediator of brown fat cell identity and smooth muscle cell activities, may be involved in the hypercholesterolemia during development of AS. The bioinformatic analysis identified a regulatory miR-448 of PRDM16. Hence, the current study aimed to explore whether miR-448 influenced the activities of aortic smooth muscle cell (ASMCs) in AS. We validated that miR-448 was highly expressed in peripheral blood of patients with AS and aortic smooth muscle of AS model mice. Whereas, PRDM16 was downregulated in the aortic smooth muscle of AS model mice. PRDM16 overexpression was observed to inhibit oxidative stress injury and cell proliferation, and promote apoptosis of ASMCs. Mechanistic studies revealed that miR-448 targeted PRDM16 and negatively regulated the PRDM16 expression, while PRDM16 blocked the TGF-β signaling pathway. Furthermore, Downregulated miR-448 alleviated oxidative stress injury, and attenuated ASMC cell proliferation, migration and enhanced cell apoptosis through upregulation of PRDM16. Taken together, silencing of miR-448 upregulates PRDM16 and inactivates the TGF-β signaling pathway, thereby impeding development of AS by repressing the proliferation, migration and invasion of ASMCs.
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Affiliation(s)
| | | | | | | | | | - Bo Hu
- Department of Emergency, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
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Song JJ, Yang M, Liu Y, Song JW, Wang J, Chi HJ, Liu XY, Zuo K, Yang XC, Zhong JC. MicroRNA-122 aggravates angiotensin II-mediated apoptosis and autophagy imbalance in rat aortic adventitial fibroblasts via the modulation of SIRT6-elabela-ACE2 signaling. Eur J Pharmacol 2020; 883:173374. [PMID: 32682786 PMCID: PMC7364171 DOI: 10.1016/j.ejphar.2020.173374] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 07/11/2020] [Accepted: 07/13/2020] [Indexed: 12/14/2022]
Abstract
Abnormal aortic adventitial fibroblasts (AFs) play essential roles in the development of vascular remodeling and disorders. Previous studies revealed that microRNA-122 (miR-122) levels were elevated in the aortic adventitia of hypertensive rats with vascular injury. Here, we aim to evaluate the biological effects and underlying mechanisms of miR-122 in rat AFs. Exposure to angiotensin II (ATII) in rat AFs resulted in decreased levels of sirtuin 6 (SIRT6), elabela (ELA), and angiotensin-converting enzyme 2 (ACE2). Additionally, stimulation with ATII contributed to a decline in autophagic flux and obvious increases in cellular migration, oxidative stress, and apoptosis, which were exacerbated by the transfection of miR-122-5p mimic but were rescued by miR-122-5p inhibitor, exogenous replenishment of ELA, and recombinant adeno-associated virus expressing SIRT6 (rAAV-SIRT6), respectively. Moreover, stimulation with miR-122-5p mimic led to a marked reduction in the levels of SIRT6 and ELA in rat AFs, which were elevated by stimulation with rAAV-SIRT6. Furthermore, miR-122-5p inhibitor-mediated pro-autophagic, anti-oxidant and anti-apoptotic effects in rat AFs were partially suppressed by 3-methyladenine, SIRT6 small interfering RNA (siRNA) and ELA siRNA, which were linked with the downregulation in the protein levels of LC3-II, beclin-1, and ACE2 and the upregulation of p62 expression and bax/bcl-2 ratio. Our findings indicated that miR-122-5p inhibition prevented ATII-mediated loss of autophagy, and the promotion of apoptosis and oxidative stress via activating the SIRT6-ELA-ACE2 signaling. MiR-122-5p may be a novel predictive biomarker of adventitial injury, and targeting the SIRT6-ELA-ACE2 signaling may have the potential therapeutic importance of controlling vascular remodeling and disorders.
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Affiliation(s)
- Juan-Juan Song
- Heart Center and Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100020, China
| | - Mei Yang
- Heart Center and Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100020, China
| | - Ying Liu
- Heart Center and Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100020, China
| | - Jia-Wei Song
- Heart Center and Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100020, China
| | - Juan Wang
- Heart Center and Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100020, China
| | - Hong-Jie Chi
- Heart Center and Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100020, China
| | - Xiao-Yan Liu
- Heart Center and Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100020, China; Medical Research Center, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100020, China
| | - Kun Zuo
- Heart Center and Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100020, China
| | - Xin-Chun Yang
- Heart Center and Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100020, China
| | - Jiu-Chang Zhong
- Heart Center and Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100020, China; Medical Research Center, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100020, China.
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MiR-122-5p increases radiosensitivity and aggravates radiation-induced rectal injury through CCAR1. Toxicol Appl Pharmacol 2020; 399:115054. [DOI: 10.1016/j.taap.2020.115054] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 04/26/2020] [Accepted: 05/12/2020] [Indexed: 12/13/2022]
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