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Wu X, Wang J, Hao Z, Zhen H, Hu J, Liu X, Li S, Zhao F, Li M, Zhao Z, Shi B, Ren C. Circular RNA_015343 sponges microRNA-25 to regulate viability, proliferation, and milk fat synthesis of ovine mammary epithelial cells via INSIG1. J Cell Physiol 2024. [PMID: 38828915 DOI: 10.1002/jcp.31332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Revised: 04/18/2024] [Accepted: 05/16/2024] [Indexed: 06/05/2024]
Abstract
In our previous study, circ_015343 was found to inhibit the viability and proliferation of ovine mammary epithelial cells (OMECs) and the expression levels of milk fat synthesis marker genes, but the regulatory mechanism underlying the processes is still unclear. Accordingly in this study, the target relationships between circ_015343 with miR-25 and between miR-25 with insulin induced gene 1 (INSIG1) were verified, and the functions of miR-25 and INSIG1 were investigated in OMECs. The dual-luciferase reporter assay revealed that miR-25 mimic remarkably decreased the luciferase activity of circ_015343 in HEK293T cells cotransfected with a wild-type vector, while it did not change the activity of circ_015343 in HEK293T cells cotransfected with a mutant vector. These suggest that cic_015343 can adsorb and bind miR-25. The miR-25 increased the viability and proliferation of OMECs, and the content of triglycerides in OMECs. In addition, INSIG1 was found to be a target gene of miR-25 using a dual-luciferase reporter assay. Overexpression of INSIG1 decreased the viability, proliferation, and level of triglycerides of OMECs. In contrast, the inhibition of INSIG1 in expression had the opposite effect on activities and triglycerides of OMECs with overexpressed INSIG1. A rescue experiment revealed that circ_015343 alleviated the inhibitory effect of miR-25 on the mRNA and protein abundance of INSIG1. These results indicate that circ_015343 sponges miR-25 to inhibit the activities and content of triglycerides of OMECs by upregulating the expression of INSIG1 in OMECs. This study provided new insights for understanding the genetic molecular mechanism of lactation traits in sheep.
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Affiliation(s)
- Xinmiao Wu
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Jiqing Wang
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Zhiyun Hao
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Huimin Zhen
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Jiang Hu
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Xiu Liu
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Shaobin Li
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Fangfang Zhao
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Mingna Li
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Zhidong Zhao
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Bingang Shi
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Chunyan Ren
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
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2
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Zare A, Salehpour A, Khoradmehr A, Bakhshalizadeh S, Najafzadeh V, Almasi-Turk S, Mahdipour M, Shirazi R, Tamadon A. Epigenetic Modification Factors and microRNAs Network Associated with Differentiation of Embryonic Stem Cells and Induced Pluripotent Stem Cells toward Cardiomyocytes: A Review. Life (Basel) 2023; 13:life13020569. [PMID: 36836926 PMCID: PMC9965891 DOI: 10.3390/life13020569] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 11/16/2022] [Accepted: 11/16/2022] [Indexed: 02/22/2023] Open
Abstract
More research is being conducted on myocardial cell treatments utilizing stem cell lines that can develop into cardiomyocytes. All of the forms of cardiac illnesses have shown to be quite amenable to treatments using embryonic (ESCs) and induced pluripotent stem cells (iPSCs). In the present study, we reviewed the differentiation of these cell types into cardiomyocytes from an epigenetic standpoint. We also provided a miRNA network that is devoted to the epigenetic commitment of stem cells toward cardiomyocyte cells and related diseases, such as congenital heart defects, comprehensively. Histone acetylation, methylation, DNA alterations, N6-methyladenosine (m6a) RNA methylation, and cardiac mitochondrial mutations are explored as potential tools for precise stem cell differentiation.
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Affiliation(s)
- Afshin Zare
- The Persian Gulf Marine Biotechnology Research Center, The Persian Gulf Biomedical Sciences Research Institute, Bushehr University of Medical Sciences, Bushehr 7514633196, Iran
| | - Aria Salehpour
- The Persian Gulf Marine Biotechnology Research Center, The Persian Gulf Biomedical Sciences Research Institute, Bushehr University of Medical Sciences, Bushehr 7514633196, Iran
| | - Arezoo Khoradmehr
- The Persian Gulf Marine Biotechnology Research Center, The Persian Gulf Biomedical Sciences Research Institute, Bushehr University of Medical Sciences, Bushehr 7514633196, Iran
| | - Shabnam Bakhshalizadeh
- Reproductive Development, Murdoch Children’s Research Institute, Melbourne, VIC 3052, Australia
- Department of Paediatrics, University of Melbourne, Melbourne, VIC 3010, Australia
| | - Vahid Najafzadeh
- Department of Veterinary and Animal Sciences, University of Copenhagen, 1870 Frederiksberg C, Denmark
| | - Sahar Almasi-Turk
- Department of Basic Sciences, School of Medicine, Bushehr University of Medical Sciences, Bushehr 7514633341, Iran
| | - Mahdi Mahdipour
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz 5166653431, Iran
- Department of Reproductive Biology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz 5166653431, Iran
- Correspondence: (M.M.); (R.S.); (A.T.)
| | - Reza Shirazi
- Department of Anatomy, School of Medical Sciences, Medicine & Health, UNSW Sydney, Sydney, NSW 2052, Australia
- Correspondence: (M.M.); (R.S.); (A.T.)
| | - Amin Tamadon
- PerciaVista R&D Co., Shiraz 7135644144, Iran
- Correspondence: (M.M.); (R.S.); (A.T.)
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3
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Wang W, Deng J, Zhang Y, Li J. A Small-Molecule Probe with a Dual Function of miRNA Inhibition and Target identification. Chemistry 2023; 29:e202202013. [PMID: 36253322 DOI: 10.1002/chem.202202013] [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: 06/29/2022] [Indexed: 11/07/2022]
Abstract
By virtue of their key roles in pathologies, miRNAs represent a promising class of therapeutic targets. While high-fidelity small-molecule modulators of miRNAs can be identified via high-throughput screening using cellular reporter systems, their modes of action are elusive due to the lack of proper tools. Here, we report a small-molecule probe, 1 a, that is capable of elucidating its biological target along miRNA inhibition. Derived from norathyriol, a nature product, 1 a possessed a bioorthogonal alkyne moiety for subsequent labeling via copper-catalyzed azide-alkyne cycloaddition chemistry. We demonstrated that 1 a inhibited a panel of different miRNAs by blocking their loading onto argonaute 2 (AGO2), which is the key protein responsible for miRNA function. With the alkyne handle, we successfully identified AGO2 as an intracellular target of 1 a. Therefore, this work presents a novel small-molecule tool for suppressing and probing miRNA regulatory pathways.
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Affiliation(s)
- Weishan Wang
- State Key Laboratory of Analytical Chemistry for Life Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, Nanjing, 210023, P. R. China
| | - Jiafang Deng
- State Key Laboratory of Analytical Chemistry for Life Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, Nanjing, 210023, P. R. China
| | - Yan Zhang
- State Key Laboratory of Analytical Chemistry for Life Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, Nanjing, 210023, P. R. China
| | - Jinbo Li
- State Key Laboratory of Analytical Chemistry for Life Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, Nanjing, 210023, P. R. China
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Chen X, Zhu L, Wang X, Xiao J. Insight into Heart-Tailored Architectures of Hydrogel to Restore Cardiac Functions after Myocardial Infarction. Mol Pharm 2023; 20:57-81. [PMID: 36413809 DOI: 10.1021/acs.molpharmaceut.2c00650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
With permanent heart muscle injury or death, myocardial infarction (MI) is complicated by inflammatory, proliferation and remodeling phases from both the early ischemic period and subsequent infarct expansion. Though in situ re-establishment of blood flow to the infarct zone and delays of the ventricular remodeling process are current treatment options of MI, they fail to address massive loss of viable cardiomyocytes while transplanting stem cells to regenerate heart is hindered by their poor retention in the infarct bed. Equipped with heart-specific mimicry and extracellular matrix (ECM)-like functionality on the network structure, hydrogels leveraging tissue-matching biomechanics and biocompatibility can mechanically constrain the infarct and act as localized transport of bioactive ingredients to refresh the dysfunctional heart under the constant cyclic stress. Given diverse characteristics of hydrogel including conductivity, anisotropy, adhesiveness, biodegradability, self-healing and mechanical properties driving local cardiac repair, we aim to investigate and conclude the dynamic balance between ordered architectures of hydrogels and the post-MI pathological milieu. Additionally, our review summarizes advantages of heart-tailored architectures of hydrogels in cardiac repair following MI. Finally, we propose challenges and prospects in clinical translation of hydrogels to draw theoretical guidance on cardiac repair and regeneration after MI.
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Affiliation(s)
- Xuerui Chen
- Institute of Geriatrics (Shanghai University), Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong), School of Medicine, Shanghai University, Nantong 226011, China.,Cardiac Regeneration and Ageing Lab, Institute of Cardiovascular Sciences, Shanghai Engineering Research Center of Organ Repair, School of Life Science, Shanghai University, Shanghai 200444, China
| | - Liyun Zhu
- Institute of Geriatrics (Shanghai University), Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong), School of Medicine, Shanghai University, Nantong 226011, China.,Cardiac Regeneration and Ageing Lab, Institute of Cardiovascular Sciences, Shanghai Engineering Research Center of Organ Repair, School of Life Science, Shanghai University, Shanghai 200444, China
| | - Xu Wang
- Hangzhou Medical College, Binjiang Higher Education Park, Binwen Road 481, Hangzhou 310053, China
| | - Junjie Xiao
- Institute of Geriatrics (Shanghai University), Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong), School of Medicine, Shanghai University, Nantong 226011, China.,Cardiac Regeneration and Ageing Lab, Institute of Cardiovascular Sciences, Shanghai Engineering Research Center of Organ Repair, School of Life Science, Shanghai University, Shanghai 200444, China
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5
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Hydroquinone destabilizes BIM mRNA through upregulation of p62 in chronic myeloid leukemia cells. Biochem Pharmacol 2022; 199:115017. [DOI: 10.1016/j.bcp.2022.115017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 03/19/2022] [Accepted: 03/21/2022] [Indexed: 11/21/2022]
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6
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Shah V, Shah J. Restoring Ravaged Heart: Molecular Mechanisms and Clinical Application of miRNA in Heart Regeneration. Front Cardiovasc Med 2022; 9:835138. [PMID: 35224063 PMCID: PMC8866653 DOI: 10.3389/fcvm.2022.835138] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 01/17/2022] [Indexed: 11/28/2022] Open
Abstract
Human heart development is a complex and tightly regulated process, conserving proliferation, and multipotency of embryonic cardiovascular progenitors. At terminal stage, progenitor cell type gets suppressed for terminal differentiation and maturation. In the human heart, most cardiomyocytes are terminally differentiated and so have limited proliferation capacity. MicroRNAs (miRNAs) are non-coding single-stranded RNA that regulate gene expression and mRNA silencing at the post-transcriptional level. These miRNAs play a crucial role in numerous biological events, including cardiac development, and cardiomyocyte proliferation. Several cardiac cells specific miRNAs have been discovered. Inhibition or overexpression of these miRNAs could induce cardiac regeneration, cardiac stem cell proliferation and cardiomyocyte proliferation. Clinical application of miRNAs extends to heart failure, wherein the cell cycle arrest of terminally differentiated cardiac cells inhibits the heart regeneration. The regenerative capacity of the myocardium can be enhanced by cardiomyocyte specific miRNAs controlling the cell cycle. In this review, we focus on cardiac-specific miRNAs involved in cardiac regeneration and cardiomyocyte proliferation, and their potential as a new clinical therapy for heart regeneration.
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Wang Y, Chen J, Cowan DB, Wang DZ. Non-coding RNAs in cardiac regeneration: Mechanism of action and therapeutic potential. Semin Cell Dev Biol 2021; 118:150-162. [PMID: 34284952 PMCID: PMC8434979 DOI: 10.1016/j.semcdb.2021.07.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 07/08/2021] [Accepted: 07/09/2021] [Indexed: 12/19/2022]
Abstract
In the past two decades, thousands of non-coding RNAs (ncRNAs) have been discovered, annotated, and characterized in nearly every tissue under both physiological and pathological conditions. Here, we will focus on the role of ncRNAs, including microRNAs (miRNAs), long non-coding RNAs (lncRNAs), and circular RNAs (circRNAs) in ischemic heart disease (IHD), which remains the leading cause of morbidity and mortality in humans-resulting in 8.9 million deaths annually. Cardiomyocyte (CM) proliferation, differentiation, and survival in addition to neovascularization of injured tissues and the prevention of fibrosis are commonly regarded as critically important for the recovery of the heart following myocardial infarction (MI). An abundance of evidence has been accumulated to show ncRNAs participate in cardiac recovery after MI. Because miRNAs are important regulators of cardiac regeneration, the therapeutic potential of at least five of these molecules has been assessed in large animal models of human IHD. In particular, miRNA-based interventions based on miR-132 and miR-92a inhibition in related diseases have displayed favorable outcomes that have provided the impetus for miRNA-based clinical trials for IHD. At the same time, the functional roles of lncRNAs and circRNAs in cardiac regeneration are also being explored. In the present review, we will summarize the latest ncRNA studies aimed at reversing damage to the ischemic heart and discuss the therapeutic potential of targeting miRNAs, lncRNAs, and circRNAs to stimulate cardiac regeneration.
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Affiliation(s)
- Yi Wang
- Department of Cardiology, Boston Children's Hospital, Harvard Medical School, 300 Longwood Avenue, Boston, MA 02115, USA
| | - Jinghai Chen
- Provincial Key Lab of Cardiovascular Research, Second Affiliated Hospital, Institute of Translational Medicine, Zhejiang University, 268 Kaixuan Road, Hangzhou, China
| | - Douglas B Cowan
- Department of Cardiology, Boston Children's Hospital, Harvard Medical School, 300 Longwood Avenue, Boston, MA 02115, USA
| | - Da-Zhi Wang
- Department of Cardiology, Boston Children's Hospital, Harvard Medical School, 300 Longwood Avenue, Boston, MA 02115, USA.
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8
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Johnson J, Mohsin S, Houser SR. Cardiomyocyte Proliferation as a Source of New Myocyte Development in the Adult Heart. Int J Mol Sci 2021; 22:ijms22157764. [PMID: 34360531 PMCID: PMC8345975 DOI: 10.3390/ijms22157764] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 07/18/2021] [Accepted: 07/18/2021] [Indexed: 02/06/2023] Open
Abstract
Cardiac diseases such as myocardial infarction (MI) can lead to adverse remodeling and impaired contractility of the heart due to widespread cardiomyocyte death in the damaged area. Current therapies focus on improving heart contractility and minimizing fibrosis with modest cardiac regeneration, but MI patients can still progress to heart failure (HF). There is a dire need for clinical therapies that can replace the lost myocardium, specifically by the induction of new myocyte formation from pre-existing cardiomyocytes. Many studies have shown terminally differentiated myocytes can re-enter the cell cycle and divide through manipulations of the cardiomyocyte cell cycle, signaling pathways, endogenous genes, and environmental factors. However, these approaches result in minimal myocyte renewal or cardiomegaly due to hyperactivation of cardiomyocyte proliferation. Finding the optimal treatment that will replenish cardiomyocyte numbers without causing tumorigenesis is a major challenge in the field. Another controversy is the inability to clearly define cardiomyocyte division versus myocyte DNA synthesis due to limited methods. In this review, we discuss several studies that induced cardiomyocyte cell cycle re-entry after cardiac injury, highlight whether cardiomyocytes completed cytokinesis, and address both limitations and methodological advances made to identify new myocyte formation.
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9
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Abstract
Manipulation of microRNA (miRNA) expression has been shown to induce cardiac regeneration, consolidating their therapeutic potential. However, studies often validate only a few miRNA targets in each experiment and hold these targets entirely accountable for the miRNAs' action, ignoring the other potential molecular and cellular events involved. In this report, experimentally validated miRNAs are used as a window of discovery for the possible genes and signaling pathways that are implicated in cardiac regeneration. A thorough evidence search was conducted, and identified miRNAs were submitted for in silico dissection using reliable bioinformatics tools. A total of 46 miRNAs were retrieved from existing literature. Shared targets between miRNAs included well-recognized genes such as BCL-2, CCND1, and PTEN. Transcription factors that are possibly involved in the regeneration process such as SP1, CTCF, and ZNF263 were also identified. The analysis confirmed well-established signaling pathways involved in cardiac regeneration such as Hippo, MAPK, and AKT signaling, and revealed new pathways such as ECM-receptor interaction, and FoxO signaling on top of hormonal pathways such as thyroid, adrenergic, and estrogen signaling pathways. Additionally, a set of differentially expressed miRNAs were identified as potential future experimental candidates.
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10
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Li J, Chen J, Yang Y, Ding R, Wang M, Gu Z. Ginkgolide A attenuates sepsis-associated kidney damage via upregulating microRNA-25 with NADPH oxidase 4 as the target. Int Immunopharmacol 2021; 95:107514. [PMID: 33677255 DOI: 10.1016/j.intimp.2021.107514] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 02/12/2021] [Accepted: 02/14/2021] [Indexed: 02/07/2023]
Abstract
The aim of the present study was to explore the effects of Ginkgolide A (GA) on renal function of mice with sepsis and whether GA could attenuate sepsis-associated inflammation and apoptosis in kidney via upregulating microRNA (miR)-25 with NADPH oxidase 4 (Nox4) as the target. Experiments were carried out on lipopolysaccharide (LPS)-treated mice and kidney tubular (NRK-52E) cells. GA significantly inhibited the increases of creatinine (Cr), blood urea nitrogen (BUN) and cystatin C (CysC) in the serum of LPS-treated mice. The increases of inflammatory factors including tumor necrosis factor (TNF)-α, interleukin (IL)-1β and IL-6 in the kidneys of LPS-treated mice or NRK-52E cells were inhibited by GA administration. The changes of cleaved-caspase 3, cleaved-caspase 8, Bax, Bcl2 in mouse kidney and NRK-52E cells treated by LPS were reversed by GA administration. The sepsis-induced decrease of miR-25 was enhanced by GA treatment. The LPS-induced increases of inflammatory factors and apoptosis in mouse kidney or NRK-52E cells were attenuated after miR-25 agomiR administration. The bioinformatics analysis and luciferase reporter assays showed that Nox4 was a direct target gene of miR-25. Treatment with miR-25 inhibited Nox4 expression, while Nox4 over-expression reversed the inhibiting effects of miR-25 agomiR on LPS-induced increases of inflammatory factors and apoptosis in NRK-52E cells. These results indicated that GA could improve sepsis-induced renal damage by attenuating renal inflammation and apoptosis via upregulating miR-25 with Nox4 as the target.
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Affiliation(s)
- Jianzhong Li
- Department of Urology, Wuxi Traditional Chinese Medicine Hospital, Wuxi, China
| | - Jian Chen
- Department of Urology, Wuxi Traditional Chinese Medicine Hospital, Wuxi, China
| | - Yucheng Yang
- Department of Urology, Wuxi Traditional Chinese Medicine Hospital, Wuxi, China
| | - Rui Ding
- Department of Urology, Wuxi Traditional Chinese Medicine Hospital, Wuxi, China
| | - Meili Wang
- Department of Urology, Wuxi Traditional Chinese Medicine Hospital, Wuxi, China
| | - Zhenhua Gu
- Department of Urology, Wuxi Traditional Chinese Medicine Hospital, Wuxi, China.
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miRNA in cardiac development and regeneration. CELL REGENERATION (LONDON, ENGLAND) 2021; 10:14. [PMID: 34060005 PMCID: PMC8166991 DOI: 10.1186/s13619-021-00077-5] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 02/19/2021] [Indexed: 02/07/2023]
Abstract
Ischemic heart disease is one of the main causes of morbidity and mortality in the world. In adult mammalian hearts, most cardiomyocytes are terminally differentiated and have extremely limited capacity of proliferation, making it impossible to regenerate the heart after injuries such as myocardial infarction. MicroRNAs (miRNAs), a class of non-coding single-stranded RNA, which are involved in mRNA silencing and the regulation of post-transcriptional gene expression, have been shown to play a crucial role in cardiac development and cardiomyocyte proliferation. Muscle specific miRNAs such as miR-1 are key regulators of cardiomyocyte maturation and growth, while miR-199-3p and other miRNAs display potent activity to induce proliferation of cardiomyocytes. Given their small size and relative pleiotropic effects, miRNAs have gained significant attraction as promising therapeutic targets or tools in cardiac regeneration. Increasing number of studies demonstrated that overexpression or inhibition of specific miRNAs could induce cardiomyocyte proliferation and cardiac regeneration. Some common targets of pro-proliferation miRNAs, such as the Hippo-Yap signaling pathway, were identified in multiple species, highlighting the power of miRNAs as probes to dissect core regulators of biological processes. A number of miRNAs have been shown to improve heart function after myocardial infarction in mice, and one trial in swine also demonstrated promising outcomes. However, technical difficulties, especially in delivery methods, and adverse effects, such as uncontrolled proliferation, remain. In this review, we summarize the recent progress in miRNA research in cardiac development and regeneration, examine the mechanisms of miRNA regulating cardiomyocyte proliferation, and discuss its potential as a new strategy for cardiac regeneration therapy.
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12
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Yuan T, Krishnan J. Non-coding RNAs in Cardiac Regeneration. Front Physiol 2021; 12:650566. [PMID: 33841185 PMCID: PMC8024481 DOI: 10.3389/fphys.2021.650566] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Accepted: 03/02/2021] [Indexed: 12/11/2022] Open
Abstract
The adult heart has a limited capacity to replace or regenerate damaged cardiac tissue following severe myocardial injury. Thus, therapies facilitating the induction of cardiac regeneration holds great promise for the treatment of end-stage heart failure, and for pathologies invoking severe cardiac dysfunction as a result of cardiomyocyte death. Recently, a number of studies have demonstrated that cardiac regeneration can be achieved through modulation and/or reprogramming of cardiomyocyte proliferation, differentiation, and survival signaling. Non-coding RNAs (ncRNAs), including microRNAs (miRNAs), long non-coding RNAs (lncRNAs) and circular RNAs (circRNAs), are reported to play critical roles in regulating key aspects of cardiomyocyte physiologic and pathologic signaling, including the regulation of cardiac regeneration both in vitro and in vivo. In this review, we will explore and detail the current understanding of ncRNA function in cardiac regeneration, and highlight established and novel strategies for the treatment of heart failure through modulation of ncRNAs-driven cardiac regeneration.
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Affiliation(s)
- Ting Yuan
- Institute of Cardiovascular Regeneration, Center for Molecular Medicine, Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Jaya Krishnan
- Institute of Cardiovascular Regeneration, Center for Molecular Medicine, Goethe University Frankfurt, Frankfurt am Main, Germany
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Zhang S, Zhang Y, Wang X, Wu L, Shen J, Gu M, Fang Z. Effects of Shenfu Qiangxin Drink on H 2O 2-induced oxidative stress, inflammation and apoptosis in neonatal rat cardiomyocytes and possible underlying mechanisms. Exp Ther Med 2021; 21:553. [PMID: 33850525 PMCID: PMC8027745 DOI: 10.3892/etm.2021.9985] [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: 07/24/2020] [Accepted: 11/26/2020] [Indexed: 12/13/2022] Open
Abstract
The aim of the present study was to investigate the effects of Shenfu Qiangxin Drink (SFQXD) on acute myocardial infarction (AMI) and identify the possible underlying mechanisms. Levels of reactive oxygen species (ROS) and inflammatory factors, including interleukin (IL)-6, IL-1β and tumor necrosis factor-α (TNF-α) in the blood samples of patients with AMI were measured using commercially available kits by visible spectrophotometry after SFQXD administration. The contents of phosphorylated (p-) forkhead box O3a (FOXO3a) was examined using an ELISA kit. In addition, a hydrogen peroxide (H2O2)-induced myocardial injury model was established in vitro using neonatal rat cardiomyocytes. Following treatment with SFQXD, the levels of intracellular ROS, cell apoptosis, oxidative stress- and inflammation-related markers were measured using commercially available kits by visible spectrophotometry. Additionally, western blot analysis was used to measure the expression of sirtuin-4 (SIRT4), p-FOXO3a, acetylated FOXO3a (ace-FOXO3a) and apoptosis-related genes (Bcl-2, Bax, BIM and cleaved caspase-3). Subsequently, to investigate the possible underlying regulatory mechanisms, SIRT4 expression was silenced by transfection with small hairpin RNA against SIRT4, following which changes in the extent of oxidative stress, inflammation and apoptosis were assessed. The levels of ROS and interleukin (IL)-1β were found to be significantly reduced, whilst FOXO3a phosphorylation was markedly increased following administration with SFQXD. In vitro, SFQXD dose-dependently inhibited H2O2-induced oxidative stress, inflammation and apoptosis in neonatal rat cardiomyocytes. In addition, FOXO3a phosphorylation was markedly upregulated whilst FOXO3a acetylation was downregulated following treatment of H2O2-induced primary neonatal cardiomyocytes with SFQXD. SIRT4 knockdown also markedly reversed the effects of SFQXD on oxidative stress, inflammation and apoptosis in neonatal rat cardiomyocytes. In conclusion, these findings demonstrated that SFQXD may alleviate oxidative stress-induced myocardial injury by potentially regulating SIRT4/FOXO3a signaling, suggesting that SFQXD may be of clinical value for the treatment of AMI.
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Affiliation(s)
- Sujie Zhang
- First Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, P.R. China.,Department of Cardiology, Jiangsu Province Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing, Jiangsu 210028, P.R. China
| | - Yiyan Zhang
- Department of Cardiology, Jiangsu Province Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing, Jiangsu 210028, P.R. China
| | - Xindong Wang
- Department of Cardiology, Jiangsu Province Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing, Jiangsu 210028, P.R. China
| | - Lixing Wu
- Department of Cardiology, Jiangsu Province Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing, Jiangsu 210028, P.R. China
| | - Jianping Shen
- Department of Cardiology, Jiangsu Province Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing, Jiangsu 210028, P.R. China
| | - Minglin Gu
- Department of Cardiology, Jiangsu Province Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing, Jiangsu 210028, P.R. China
| | - Zhuyuan Fang
- First Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, P.R. China
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14
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Abstract
Cardiac development is a complex developmental process that is initiated soon after gastrulation, as two sets of precardiac mesodermal precursors are symmetrically located and subsequently fused at the embryonic midline forming the cardiac straight tube. Thereafter, the cardiac straight tube invariably bends to the right, configuring the first sign of morphological left–right asymmetry and soon thereafter the atrial and ventricular chambers are formed, expanded and progressively septated. As a consequence of all these morphogenetic processes, the fetal heart acquired a four-chambered structure having distinct inlet and outlet connections and a specialized conduction system capable of directing the electrical impulse within the fully formed heart. Over the last decades, our understanding of the morphogenetic, cellular, and molecular pathways involved in cardiac development has exponentially grown. Multiples aspects of the initial discoveries during heart formation has served as guiding tools to understand the etiology of cardiac congenital anomalies and adult cardiac pathology, as well as to enlighten novels approaches to heal the damaged heart. In this review we provide an overview of the complex cellular and molecular pathways driving heart morphogenesis and how those discoveries have provided new roads into the genetic, clinical and therapeutic management of the diseased hearts.
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15
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Silvestro S, Gugliandolo A, Chiricosta L, Diomede F, Trubiani O, Bramanti P, Pizzicannella J, Mazzon E. MicroRNA Profiling of HL-1 Cardiac Cells-Derived Extracellular Vesicles. Cells 2021; 10:cells10020273. [PMID: 33573156 PMCID: PMC7912193 DOI: 10.3390/cells10020273] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2020] [Revised: 01/19/2021] [Accepted: 01/27/2021] [Indexed: 11/20/2022] Open
Abstract
HL-1 is a cell line that shows a phenotype similar to adult cardiomyocytes. All major cardiac cell types release extracellular vesicles (EVs) that emerge as key mediators of intercellular communication. EVs can mediate intercellular cross-talk through the transfer of specific microRNAs (miRNAs). MiRNAs are known to play important regulatory roles during tissue differentiation and regeneration processes. Furthermore, miRNAs have recently been shown to be involved in the proliferation of adult cardiomyocytes. In this context, the purpose of this study was to analyze the transcriptomic profile of miRNAs expressed from HL-1 cardiac muscle cell-derived EVs, using next generation sequencing (NGS). Specifically, our transcriptomic analysis showed that the EVs derived from our HL-1 cells contained miRNAs that induce blood vessel formation and increase cell proliferation. Indeed, our bioinformatics analysis revealed 26 miRNAs expressed in EVs derived from our HL-1 that target genes related to cardiovascular development. In particular, their targets are enriched for the following biological processes related to cardiovascular development: heart morphogenesis, positive regulation of angiogenesis, artery development, ventricular septum development, cardiac atrium development, and myoblast differentiation. Consequently, EVs could become important in the field of regenerative medicine.
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Affiliation(s)
- Serena Silvestro
- IRCCS Centro Neurolesi “Bonino-Pulejo”, 98124 Messina, Italy; (S.S.); (A.G.); (L.C.); (P.B.)
| | - Agnese Gugliandolo
- IRCCS Centro Neurolesi “Bonino-Pulejo”, 98124 Messina, Italy; (S.S.); (A.G.); (L.C.); (P.B.)
| | - Luigi Chiricosta
- IRCCS Centro Neurolesi “Bonino-Pulejo”, 98124 Messina, Italy; (S.S.); (A.G.); (L.C.); (P.B.)
| | - Francesca Diomede
- Department of Innovative Technologies in Medicine & Dentistry, University “G. d’Annunzio”, Chieti-Pescara, Via dei Vestini, 31, 66100 Chieti, Italy; (F.D.); (O.T.)
| | - Oriana Trubiani
- Department of Innovative Technologies in Medicine & Dentistry, University “G. d’Annunzio”, Chieti-Pescara, Via dei Vestini, 31, 66100 Chieti, Italy; (F.D.); (O.T.)
| | - Placido Bramanti
- IRCCS Centro Neurolesi “Bonino-Pulejo”, 98124 Messina, Italy; (S.S.); (A.G.); (L.C.); (P.B.)
| | | | - Emanuela Mazzon
- IRCCS Centro Neurolesi “Bonino-Pulejo”, 98124 Messina, Italy; (S.S.); (A.G.); (L.C.); (P.B.)
- Correspondence: ; Tel.: +39-090-6012-8172
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16
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Dong X, Dong X, Gao F, Liu N, Liang T, Zhang F, Fu X, Pu L, Chen J. Non-coding RNAs in cardiomyocyte proliferation and cardiac regeneration: Dissecting their therapeutic values. J Cell Mol Med 2021; 25:2315-2332. [PMID: 33492768 PMCID: PMC7933974 DOI: 10.1111/jcmm.16300] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 01/05/2021] [Accepted: 01/09/2021] [Indexed: 12/23/2022] Open
Abstract
Cardiovascular diseases are associated with high incidence and mortality, contribute to disability and place a heavy economic burden on countries worldwide. Stimulating endogenous cardiomyocyte proliferation and regeneration has been considering as a key to repair the injured heart caused by ischaemia. Emerging evidence has proved that non‐coding RNAs participate in cardiac proliferation and regeneration. In this review, we focus on the observation and mechanism that microRNAs (or miRNAs), long non‐coding RNAs (or lncRNAs) and circular RNA (or circRNAs) regulate cardiomyocyte proliferation and regeneration to repair a damaged heart. Furthermore, we highlight the potential therapeutic role of some non‐coding RNAs used in stimulating CMs proliferation. Finally, perspective on the development of non‐coding RNAs therapy in cardiac regeneration is presented.
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Affiliation(s)
- Xiaoxuan Dong
- Department of Cardiology, Provincial Key Lab of Cardiovascular Research, Second Affiliated Hospital, Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, China
| | - Xiuyun Dong
- Department of Cardiology, Shanxi Cardiovascular Hospital, Taiyuan, China
| | - Feng Gao
- Department of Cardiology, Provincial Key Lab of Cardiovascular Research, Second Affiliated Hospital, Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, China
| | - Ning Liu
- Department of Cardiology, Provincial Key Lab of Cardiovascular Research, Second Affiliated Hospital, Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, China
| | - Tian Liang
- Department of Cardiology, Provincial Key Lab of Cardiovascular Research, Second Affiliated Hospital, Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, China
| | - Feng Zhang
- Department of Cardiology, Provincial Key Lab of Cardiovascular Research, Second Affiliated Hospital, Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, China
| | - Xuyang Fu
- Department of Cardiology, Provincial Key Lab of Cardiovascular Research, Second Affiliated Hospital, Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, China
| | - Linbin Pu
- Department of Cardiology, Provincial Key Lab of Cardiovascular Research, Second Affiliated Hospital, Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, China
| | - Jinghai Chen
- Department of Cardiology, Provincial Key Lab of Cardiovascular Research, Second Affiliated Hospital, Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, China
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Affiliation(s)
- Shang-Feng Yang
- Division of Nephrology, Department of Medicine, Cheng Hsin General Hospital, Taipei, Taiwan, ROC
- Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
| | - Po-Hsun Huang
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- Department of Critical Care Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
- Cardiovascular Research Center, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
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18
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Braga L, Ali H, Secco I, Giacca M. Non-coding RNA therapeutics for cardiac regeneration. Cardiovasc Res 2020; 117:674-693. [PMID: 32215566 DOI: 10.1093/cvr/cvaa071] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Revised: 03/02/2020] [Accepted: 03/20/2020] [Indexed: 12/19/2022] Open
Abstract
A growing body of evidence indicates that cardiac regeneration after myocardial infarction can be achieved by stimulating the endogenous capacity of cardiomyocytes (CMs) to replicate. This process is controlled, both positively and negatively, by a large set of non-coding RNAs (ncRNAs). Some of the microRNAs (miRNAs) that can stimulate CM proliferation is expressed in embryonic stem cells and is required to maintain pluripotency (e.g. the miR-302∼367 cluster). Others also govern the proliferation of different cell types, including cancer cells (e.g. the miR-17∼92 cluster). Additional miRNAs were discovered through systematic screenings (e.g. miR-199a-3p and miR-590-3p). Several miRNAs instead suppress CM proliferation and are involved in the withdrawal of CMs from the cell cycle after birth (e.g. the let-7 and miR-15 families). Similar regulatory roles on CM proliferation are also exerted by a few long ncRNAs. This body of information has obvious therapeutic implications, as miRNAs with activator function or short antisense oligonucleotides against inhibitory miRNAs or lncRNAs can be administered to stimulate cardiac regeneration. Expression of miRNAs can be achieved by gene therapy using adeno-associated vectors, which transduce CMs with high efficiency. More effective and safer for therapeutic purposes, small nucleic acid therapeutics can be obtained as chemically modified, synthetic molecules, which can be administered through lipofection or inclusion in lipid or polymer nanoparticles for efficient cardiac delivery. The notion that it is possible to reprogramme CMs into a regenerative state and that this property can be enhanced by ncRNA therapeutics remains exciting, however extensive experimentation in large mammals and rigorous assessment of safety are required to advance towards clinical application.
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Affiliation(s)
- Luca Braga
- British Heart Foundation Centre of Research Excellence, School of Cardiovascular Medicine & Sciences, King's College London, The James Black Centre, 125 Coldharbour Lane, London SE5 9NU, UK
| | - Hashim Ali
- British Heart Foundation Centre of Research Excellence, School of Cardiovascular Medicine & Sciences, King's College London, The James Black Centre, 125 Coldharbour Lane, London SE5 9NU, UK
| | - Ilaria Secco
- British Heart Foundation Centre of Research Excellence, School of Cardiovascular Medicine & Sciences, King's College London, The James Black Centre, 125 Coldharbour Lane, London SE5 9NU, UK
| | - Mauro Giacca
- British Heart Foundation Centre of Research Excellence, School of Cardiovascular Medicine & Sciences, King's College London, The James Black Centre, 125 Coldharbour Lane, London SE5 9NU, UK.,Molecular Medicine Laboratory, International Centre for Genetic Engineering and Biotechnology (ICGEB), Trieste, Italy.,Department of Medical, Surgical and Health Sciences, University of Trieste, Trieste, Italy
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19
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Yao B, Wan X, Zheng X, Zhong T, Hu J, Zhou Y, Qin A, Ma Y, Yin D. Critical roles of microRNA-141-3p and CHD8 in hypoxia/reoxygenation-induced cardiomyocyte apoptosis. Cell Biosci 2020; 10:20. [PMID: 32123560 PMCID: PMC7035710 DOI: 10.1186/s13578-020-00384-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Accepted: 02/11/2020] [Indexed: 12/11/2022] Open
Abstract
Background Cardiovascular diseases are currently the leading cause of death in humans. The high mortality of cardiac diseases is associated with myocardial ischemia and reperfusion (I/R). Recent studies have reported that microRNAs (miRNAs) play important roles in cell apoptosis. However, it is not known yet whether miR-141-3p contributes to the regulation of cardiomyocyte apoptosis. It has been well established that in vitro hypoxia/reoxygenation (H/R) model can follow in vivo myocardial I/R injury. This study aimed to investigate the effects of miR-141-3p and CHD8 on cardiomyocyte apoptosis following H/R. Results We found that H/R remarkably reduces the expression of miR-141-3p but enhances CHD8 expression both in mRNA and protein in H9c2 cardiomyocytes. We also found either overexpression of miR-141-3p by transfection of miR-141-3p mimics or inhibition of CHD8 by transfection of small interfering RNA (siRNA) significantly decrease cardiomyocyte apoptosis induced by H/R. Moreover, miR-141-3p interacts with CHD8. Furthermore, miR-141-3p and CHD8 reduce the expression of p21. Conclusion MiR-141-3p and CHD8 play critical roles in cardiomyocyte apoptosis induced by H/R. These studies suggest that miR-141-3p and CHD8 mediated cardiomyocyte apoptosis may offer a novel therapeutic strategy against myocardial I/R injury-induced cardiovascular diseases.
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Affiliation(s)
- Bifeng Yao
- 1Xiangya School of Pharmaceutical Science, Central South University, Changsha, 410008 Hunan China
| | - Xiaoya Wan
- 1Xiangya School of Pharmaceutical Science, Central South University, Changsha, 410008 Hunan China
| | - Xinbin Zheng
- 1Xiangya School of Pharmaceutical Science, Central South University, Changsha, 410008 Hunan China
| | - Ting Zhong
- 1Xiangya School of Pharmaceutical Science, Central South University, Changsha, 410008 Hunan China
| | - Jia Hu
- 1Xiangya School of Pharmaceutical Science, Central South University, Changsha, 410008 Hunan China
| | - Yu Zhou
- 2Department of Neurology, Renmin Hospital of Wuhan University, Wuhan, 430060 Hubei China
| | - Anna Qin
- 1Xiangya School of Pharmaceutical Science, Central South University, Changsha, 410008 Hunan China
| | - Yeshuo Ma
- 1Xiangya School of Pharmaceutical Science, Central South University, Changsha, 410008 Hunan China
| | - Deling Yin
- 1Xiangya School of Pharmaceutical Science, Central South University, Changsha, 410008 Hunan China.,3Department of Internal Medicine, College of Medicine, East Tennessee State University, Johnson City, TN 37604 USA
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20
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Meng X, Mei L, Zhao C, Chen W, Zhang N. miR-885 mediated cardioprotection against hypoxia/reoxygenation-induced apoptosis in human cardiomyocytes via inhibition of PTEN and BCL2L11 and modulation of AKT/mTOR signaling. J Cell Physiol 2020; 235:8048-8057. [PMID: 31960416 DOI: 10.1002/jcp.29460] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2019] [Accepted: 01/07/2020] [Indexed: 12/11/2022]
Abstract
Ischemia/reperfusion (I/R) injury could cause the enhanced cell apoptosis of cardiomyocytes, which is one of key contributors for the development of ischemic heart disease. Recent studies emphasized the role of microRNAs (miRNAs) in regulating cardiomyocyte apoptosis. The study planned to elucidate the molecular actions of miR-885 on mediating human cardiomyocytes (HCMs) apoptosis induced by hypoxia/reoxygenation (H/R) and to explore the potential molecular mechanisms. The present data revealed that H/R stimulation inhibited HCM viability and potentiated HCM apoptosis, and more importantly, the expression of miR-885 in HCMs was markedly repressed after H/R stimulation. Further experimental examinations demonstrated that overexpression of miR-885 attenuated H/R-induced increased in HCM apoptotic rates, while miR-885 knockdown impaired HCM viability and increased HCM apoptotic rates. Moreover, the mechanistic studies showed that miR-885 inversely regulated the expression of phosphatase and tensin homolog (PTEN) and BCL2 like 11 (BCL2L11) in HCMs, and enforced expression of PTEN and BCL2L11 partially antagonized the protective actions of miR-885 overexpression on H/R-induced HCM injury. Moreover, H/R suppressed AKT/mTOR signaling, which was attenuated by miR-885 overexpression in HCMs. In conclusion, the present study for the first time showed the downregulation of miR-885 induced by H/R in HCMs, and provided the evidence that miR-885 attenuated H/R-induced cell apoptosis via inhibiting PTEN and BLC2L11 and modulation of AKT/mTOR signaling in HCMs.
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Affiliation(s)
- Xin Meng
- Clinical Laboratory, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Lijun Mei
- Department of Blood Transfusion, Ankang Central Hospital, Ankang, China
| | - Chedong Zhao
- Clinical Laboratory, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Wei Chen
- Clinical Laboratory, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Ning Zhang
- Clinical Laboratory, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
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21
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Liu Q, Song B, Xu M, An Y, Zhao Y, Yue F. MiR-25 exerts cardioprotective effect in a rat model of myocardial ischemia-reperfusion injury by targeting high-mobility group box 1. J Chin Med Assoc 2020; 83:25-31. [PMID: 31809304 DOI: 10.1097/jcma.0000000000000229] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND We previously confirmed the targeting of high-mobility group box 1 (HMGB1) by miR-25. This project aims to further investigate whether miR-25 improves myocardial ischemia-reperfusion injury (IRI) in vivo by targeting HMGB1. METHODS A rat model of myocardial IRI was established by the ligation of the left anterior descending coronary artery for 45 minutes followed by 2, 4, or 6 hours reperfusion. The expression of miR-25, HMGB1, and apoptosis-related proteins in the myocardium was determined by quantitative real-time polymerase chain reaction (PCR) and western blotting. The activities of myocardial enzymes and the release of inflammatory cytokines were evaluated by enzyme-linked immunosorbent assay. Evans blue/triphenyltetrazolium chloride double staining was performed to assess infarct size. Myocardial apoptosis was detected by terminal deoxynucleotidyl transferase dUTP nick end labeling staining. RESULTS MiR-25 expression was significantly downregulated, while HMGB1 was highly expressed at the mRNA and protein levels in myocardial tissues after induction of the IRI model. MiR-25 agomir administration suppressed the expression of HMGB1 in myocardial tissues. Furthermore, administration of both miR-25 agomir and lentivirus-mediated short hairpin RNA (shRNA) interference targeting HMGB1 sh-HMGB1 resulted in reduced serum myocardial enzyme activities, cytokine secretion, and myocardial apoptosis during myocardial IRI. CONCLUSION MiR-25 mitigated myocardial IRI-induced damage by targeting HMGB1.
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Affiliation(s)
- Qifang Liu
- Department of Cardiology, Guizhou Provincial People's Hospital, Guiyang, Guizhou, China
| | - Bo Song
- Department of Cardiology, Guizhou Provincial People's Hospital, Guiyang, Guizhou, China
| | - Min Xu
- Department of Rehabilitation, Guizhou Provincial People's Hospital, Guiyang, Guizhou, China
| | - Yaping An
- Department of Cardiology, Guizhou Provincial People's Hospital, Guiyang, Guizhou, China
| | - Yidong Zhao
- Department of Cardiology, Guizhou Provincial People's Hospital, Guiyang, Guizhou, China
| | - Feng Yue
- Department of Cardiology, Guizhou Provincial People's Hospital, Guiyang, Guizhou, China
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