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Kuang Y, Yang J, Sun M, Rui T, Yang Z, Shi M. Depression of LncRNA DANCR alleviates tubular injury in diabetic nephropathy by regulating KLF5 through sponge miR-214-5p. BMC Nephrol 2024; 25:130. [PMID: 38609873 PMCID: PMC11010359 DOI: 10.1186/s12882-024-03562-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Accepted: 03/26/2024] [Indexed: 04/14/2024] Open
Abstract
OBJECTIVE Diabetic nephropathy (DN) manifests a critical aspect in the form of renal tubular injury. The current research aimed to determine the function and mechanism of long non-coding ribonucleic acid (LncRNA) differentiation antagonising non-protein coding RNA (DANCR), with a focus on its impact on renal tubular injury. METHODS Quantitative reverse transcription polymerase chain reaction was employed to analyze the RNA levels of DANCR in the serum of patients with DN or human proximal tubular epithelial cells (human kidney 2 [HK2]). The diagnostic significance of DANCR was assessed using a receiver operating characteristic curve. A DN model was established by inducing HK-2 cells with high glucose (HG). Cell proliferation, apoptosis, and the levels of inflammatory factors, reactive oxygen species (ROS), and malondialdehyde (MDA) were detected using the Cell Counting Kit - 8, flow cytometry, and enzyme-linked immunosorbent assay. The interaction between microRNA (miR)-214-5p and DANCR or Krüppel-like factor 5 (KLF5) was investigated using RNA immunoprecipitation and dual-luciferase reporter assays. RESULTS Elevated levels of DANCR were observed in the serum of patients with DN and HG-inducted HK-2 cells (P < 0.05). DANCR levels effectively identified patients with DN from patients with type 2 diabetes mellitus. Silencing of DANCR protected against HG-induced tubular injury by restoring cell proliferation, inhibiting apoptosis, and reducing the secretion of inflammatory factors and oxidative stress production (P < 0.05). DANCR functions as a sponge for miR-214-5p, and the mitigation of DANCR silencing on HG-induced renal tubular injury was partially attenuated with reduced miR-214-5p (P < 0.05). Additionally, KLF5 was identified as the target of miR-214-5p. CONCLUSION DANCR was identified as diagnostic potential for DN and the alleviation of renal tubular injury via the miR-214-5p/KLF5 axis, following DANCR silencing, introduces a novel perspective and approach to mitigating DN.
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Affiliation(s)
- Yongling Kuang
- Department of Nephrology, Gongli Hospital of Shanghai Pudong New Area, No. 219 Miaopu Road, Pudong New Area, 200135, Shanghai, China.
| | - Juan Yang
- Department of Nephrology, Gongli Hospital of Shanghai Pudong New Area, No. 219 Miaopu Road, Pudong New Area, 200135, Shanghai, China
| | - Meimei Sun
- Department of Nephrology, Gongli Hospital of Shanghai Pudong New Area, No. 219 Miaopu Road, Pudong New Area, 200135, Shanghai, China
| | - Tingting Rui
- Department of Nephrology, Gongli Hospital of Shanghai Pudong New Area, No. 219 Miaopu Road, Pudong New Area, 200135, Shanghai, China
| | - Zhenhua Yang
- Department of Nephrology, Gongli Hospital of Shanghai Pudong New Area, No. 219 Miaopu Road, Pudong New Area, 200135, Shanghai, China
| | - Meihua Shi
- Department of Nephrology, Gongli Hospital of Shanghai Pudong New Area, No. 219 Miaopu Road, Pudong New Area, 200135, Shanghai, China
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Zhang J. Non-coding RNAs and angiogenesis in cardiovascular diseases: a comprehensive review. Mol Cell Biochem 2024:10.1007/s11010-023-04919-5. [PMID: 38306012 DOI: 10.1007/s11010-023-04919-5] [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: 10/27/2023] [Accepted: 12/18/2023] [Indexed: 02/03/2024]
Abstract
Non-coding RNAs (ncRNAs) have key roles in the etiology of many illnesses, including heart failure, myocardial infarction, stroke, and in physiological processes like angiogenesis. In transcriptional regulatory circuits that control heart growth, signaling, and stress response, as well as remodeling in cardiac disease, ncRNAs have become important players. Studies on ncRNAs and cardiovascular disease have made great progress recently. Here, we go through the functions of non-coding RNAs (ncRNAs) like circular RNAs (circRNAs), and microRNAs (miRNAs) as well as long non-coding RNAs (lncRNAs) in modulating cardiovascular disorders.
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Affiliation(s)
- Jie Zhang
- Medical School, Shandong University of Traditional Chinese Medicine, Jinan, 250355, China.
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Li C, Pu Y, Wang D, Cheng R, Xu R, Gong Q, Jiang Y, Zhang C, Chen Y. MiR-522-3p Attenuates Cardiac Recovery by Targeting FOXP1 to Suppress Angiogenesis. Int Heart J 2024; 65:300-307. [PMID: 38556338 DOI: 10.1536/ihj.23-269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/02/2024]
Abstract
Angiogenesis is crucial for blood supply reconstitution after myocardial infarction in patients with acute coronary syndrome (ACS). MicroRNAs are recognized as important epigenetic regulators of endothelial angiogenesis. The purpose of this study is to determine the roles of miR-522-3p in angiogenesis after myocardial infarction. The expression levels of miR-522-3p in rats' plasma and in the upper part of the ligation of the heart tissues at 28 days after myocardial infarction were significantly higher than those of the sham group. miR-522-3p mimics inhibited cell proliferations, migrations, and tube formations under hypoxic conditions in HUVECs (human umbilical vein endothelial cells), whereas miR-522-3p inhibitors did the opposite. Furthermore, studies have indicated that the inhibition of miR-522-3p by antagomir infusion promoted angiogenesis and accelerated the recovery of cardiac functions in rats with myocardial infarction.Data analysis and experimental results revealed that FOXP1 (Forkhead-box protein P1) was the target gene of miR-522-3p. Our study explored the mechanism of cardiac angiogenesis after myocardial infarction and provided a potential therapeutic approach for the treatment of ischemic heart disease in the future.
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Affiliation(s)
- Chunyu Li
- Women & Children Intensive Care Unit, The First Affiliated Hospital of Nanjing Medical University
| | - Yanan Pu
- Department of Outpatient & Emergency Management, The First Affiliated Hospital of Nanjing Medical University
| | - Di Wang
- Department of Outpatient & Emergency Management, The First Affiliated Hospital of Nanjing Medical University
| | - Rong Cheng
- Department of Outpatient & Emergency Management, The First Affiliated Hospital of Nanjing Medical University
| | - Rui Xu
- Department of Outpatient & Emergency Management, The First Affiliated Hospital of Nanjing Medical University
| | - Qingyun Gong
- Department of Outpatient & Emergency Management, The First Affiliated Hospital of Nanjing Medical University
| | - Yi Jiang
- Department of Outpatient & Emergency Management, The First Affiliated Hospital of Nanjing Medical University
| | - Cheng Zhang
- Women & Children Central Laboratory, The First Affiliated Hospital of Nanjing Medical University
| | - Yan Chen
- Department of Outpatient & Emergency Management, The First Affiliated Hospital of Nanjing Medical University
- Department of Emergency Management, School of Health Policy & Management, Nanjing Medical University
- Research Institute of Health Jiangsu, Nanjing Medical University
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曹 天, 刘 青, 潘 美, 张 雪. [LncRNA SNHG8 inhibits miR-494-3p expression to alleviate cerebral ischemia-reperfusion injury in mice]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2023; 43:2015-2022. [PMID: 38189386 PMCID: PMC10774103 DOI: 10.12122/j.issn.1673-4254.2023.12.04] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Indexed: 01/09/2024]
Abstract
OBJECTIVE To explore the mechanism by which LncRNA SNHG8 regulates miR-494-3p expression to alleviate cerebral ischemia-reperfusion injury. METHODS A mouse model of cerebral ischemia-reperfusion injury was established, and TTC staining was used to determine the infarct area; ELISA was used to detect the contents of the inflammatory factors IL-1β, IL-6 and TNF-α in the brain tissue, and RT-qPCR was performed to detect the expression levels of LncRNA MALAT1 and miR-155-5p. A microglial cell model overexpressing LncRNA SNHG8 was exposed to oxygen-glucose deprivation/reoxygenation (OGD/R), and inflammatory reaction and apoptosis of the cells were detected using ELISA and flow cytometry. A luciferase reporter assay was used to detect the targeting relationship between LncRNA SNHG8 and miR-494-3p. We further constructed a microglial cell model overexpressing both LncRNA SNHG8 the miR-494-3p, and examined inflammatory reactions and apoptosis of the cells following OGD/R exposure. RESULTS In the mouse model of cerebral ischemia-reperfusion injury, the contents of inflammatory factors IL-1β, IL-6 and TNF-α increased significantly in the brain tissue (P < 0.001), where LncRNA SNHG8 expression was lowered (P < 0.01) and miR-494-3p expression increased significantly (P < 0.01). In the microglial cells, overexpression of LncRNA SNHG8 significantly inhibited the inflammatory reaction and apoptosis following OGD/R exposure (P < 0.01), and overexpression of LncRNA SNHG8 strongly inhibited the expression of miR-494-3p (P < 0.01). Overexpression of miR-494-3p in microglia overexpressing SNHG8 partially promoted inflammatory reaction and cell apoptosis in response to OGD/R (P < 0.05). CONCLUSION LncRNA SNHG8 can improve cerebral ischemia-reperfusion injury in mice by inhibiting the expression of miR-494-3p and suppressing inflammatory reactions and apoptosis of the microglia.
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Affiliation(s)
- 天然 曹
- 长沙市第一医院临床试验研究中心,湖南 长沙 410005Clinical Trial Research Center, Changsha First Hospital, Changsha 410005, China
| | - 青芳 刘
- 长沙市第一医院神经医学中心,湖南 长沙 410005Neurology Center, Changsha First Hospital, Changsha 410005, China
| | - 美民 潘
- 长沙市第一医院临床试验研究中心,湖南 长沙 410005Clinical Trial Research Center, Changsha First Hospital, Changsha 410005, China
| | - 雪红 张
- 长沙市第一医院临床试验研究中心,湖南 长沙 410005Clinical Trial Research Center, Changsha First Hospital, Changsha 410005, China
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Huang Q, Huang Q. Inhibition of lncRNA DANCR Prevents Heart Failure by Ameliorating Cardiac Hypertrophy and Fibrosis Via Regulation of the miR-758-3p/PRG4/Smad Axis. J Cardiovasc Transl Res 2023; 16:1357-1372. [PMID: 37656414 DOI: 10.1007/s12265-023-10428-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 08/14/2023] [Indexed: 09/02/2023]
Abstract
The current work was developed to explore the functions and possible mechanism of PRG4 in cardiac hypertrophy and heart failure. Ang II-stimulated H9c2 cells and AC16 cells were used as in vitro cell models. The binding relation between genes in cells was explored using luciferase reporter assays and RNA immunoprecipitation assay. The cardiac functions of rats received transverse-ascending aortic constriction (TAC) surgery and adeno-associated virus (AAV) injection were examined with echocardiography. The myocardial histological changes were observed using H&E, wheat germ agglutinin, and sirius red staining. It was discovered that PRG4 silencing attenuated cell hypertrophy and fibrosis and inactivated the Smad pathway under Ang II treatment. PRG4 was targeted by miR-758-3p, and miR-758-3p interacted with long noncoding RNA DANCR. DANCR silencing inhibited cardiac dysfunction, fibrosis, and TGFβ1/Smad pathway. In addition, DANCR was highly expressed in myocardial extracellular vesicles. Overall, DANCR depletion prevents heart failure by inhibiting cardiac hypertrophy and fibrosis via the miR-758-3p/PRG4/Smad pathway.
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Affiliation(s)
- Qianwen Huang
- Department of Cardiology, Quanzhou First Hospital Affiliated to Fujian Medical University, Quanzhou, 362000, China
| | - Qian Huang
- Teaching and Research Section of Physiology, Basic Medicine Department, Quanzhou Medical College, No.2 Anji Road, Luojiang District, Quanzhou, 362000, Fujian, China.
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Wang W, Cheng W, Wang X, Li Z, Gao J. CircFKBP3 absence alleviates oxygen glucose deprivation-induced function loss of human brain microvascular endothelial cells in vitro via governing the miR-766-3p/TRAF3 axis. Int J Neurosci 2023:1-12. [PMID: 37982234 DOI: 10.1080/00207454.2023.2279506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Accepted: 10/31/2023] [Indexed: 11/21/2023]
Abstract
BACKGROUND Brain microvascular endothelial cell (BMEC) functions loss is a key event in the development of ischemic stroke, which may be affected by the dysregulation of circular RNAs (circRNAs). We aimed to unveil the role of circRNA FKBP Prolyl Isomerase 3 (circFKBP3) in cell models of ischemic stroke. METHODS Cell models of ischemic stroke were constructed in human BEMCs (HBMECs) with the treatment of oxygen glucose deprivation (OGD). Quantitative real-time PCR (qPCR) and western blotting were conducted for expression analysis of circFKBP3, miR-766-3p and TNF receptor associated factor 3 (TRAF3). CCK-8, transwell, wound healing, flow cytometry, tube formation and ELISA assays were implemented to monitor cell viability, migration, apoptosis, angiogenesis and inflammation production. The putative binding relationship between miR-766-3p and circFKBP3 or TRAF3 was validated by dual-luciferase, RIP and pull-down assays. RESULTS CircFKBP3 expression was elevated in OGD-treated HBMECs. OGD suppressed HBMEC viability, migration, angiogenesis, and provoked cell apoptosis and inflammation production, while knockdown of circFKBP3 attenuated these effects. CircFKBP3 interacted with miR-766-3p, and circFKBP3 absence-repressed HBMEC function loss and inflammation were recovered by miR-766-3p inhibition. CircFKBP3 targeted miR-766-3p to regulate TRAF3 expression. MiR-766-3p enrichment-repressed HBMEC function loss and inflammation were recovered by TRAF3 overexpression. CONCLUSION CircFKBP3 absence alleviated OGD-induced function loss and inflammatory responses of HBMECs via governing the miR-766-3p/TRAF3 axis.
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Affiliation(s)
- Wenyan Wang
- Department of Neurology, School of Medicine, Wuhan University of Science and Technology, Wuhan, Hubei, China
| | - Wei Cheng
- Department of Neurology, Wuhan Puren Hospital affiliated to Wuhan University of Science and Technology, Wuhan, Hubei, China
| | - Xudong Wang
- Department of Neurology, School of Medicine, Wuhan University of Science and Technology, Wuhan, Hubei, China
| | - Zhixin Li
- Department of Neurology, Wuhan Puren Hospital affiliated to Wuhan University of Science and Technology, Wuhan, Hubei, China
| | - Jinli Gao
- Department of Neurology, Wuhan Puren Hospital affiliated to Wuhan University of Science and Technology, Wuhan, Hubei, China
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7
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Li D, Liu L, He X, Wang N, Sun R, Li X, Yu T, Chu XM. Roles of long non-coding RNAs in angiogenesis-related diseases: Focusing on non-neoplastic aspects. Life Sci 2023; 330:122006. [PMID: 37544376 DOI: 10.1016/j.lfs.2023.122006] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 06/28/2023] [Accepted: 08/03/2023] [Indexed: 08/08/2023]
Abstract
Angiogenesis is a key process in organ and tissue morphogenesis, as well as growth during human development, and is coordinated by pro- and anti-angiogenic factors. When this balance is affected, the related physiological and pathological changes lead to disease. Long non-coding RNAs (lncRNAs) are an important class of non-coding RNAs that do not encode proteins, but play a dynamic role in regulating gene expression. LncRNAs have been reported to be extensively involved in angiogenesis, particularly tumor angiogenesis. The non-tumor aspects have received relatively little attention and summary, but there is a broad space for research and exploration on lncRNA-targeted angiogenesis in this area. In this review, we focus on lncRNAs in angiogenesis-related diseases other than tumors, such as atherosclerosis, myocardial infarction, stroke, diabetic complications, hypertension, osteoporosis, dermatosis, as well as, endocrine, neurological, and other systemic disorders. Moreover, multiple cell types have been implicated in lncRNA-targeted angiogenesis, but only endothelial cells have attracted widespread attention. Thus, we explore the roles of other cells. Finally, we summarize the potential research directions in the area of lncRNAs and angiogenesis that can be undertaken by combining cutting-edge technology and interdisciplinary research, which will provide new insights into the involvement of lncRNAs in angiogenesis-related diseases.
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Affiliation(s)
- Daisong Li
- Department of Cardiology, The Affiliated Hospital of Qingdao University, No. 59 Haier Road, Qingdao 266100, People's Republic of China
| | - Lili Liu
- School of Basic Medicine, Qingdao University, No. 308 Ningxia Road, Qingdao, People's Republic of China
| | - Xiangqin He
- Department of Echocardiography, The Affiliated Hospital of Qingdao University, Qingdao, 266000, People's Republic of China
| | - Ni Wang
- Department of Cardiology, The Affiliated Hospital of Qingdao University, No. 59 Haier Road, Qingdao 266100, People's Republic of China
| | - Ruicong Sun
- Department of Cardiology, The Affiliated Hospital of Qingdao University, No. 59 Haier Road, Qingdao 266100, People's Republic of China
| | - Xiaolu Li
- Department of Echocardiography, The Affiliated Hospital of Qingdao University, Qingdao, 266000, People's Republic of China
| | - Tao Yu
- Institute for Translational Medicine, Qingdao University, No. 38 Dengzhou Road, 266021, People's Republic of China.
| | - Xian-Ming Chu
- Department of Cardiology, The Affiliated Hospital of Qingdao University, No. 59 Haier Road, Qingdao 266100, People's Republic of China; Department of Cardiology, The Affiliated Cardiovascular Hospital of Qingdao University, No. 5 Zhiquan Road, Qingdao 266000, People's Republic of China.
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Exosomal Mir-3613-3p derived from oxygen-glucose deprivation-treated brain microvascular endothelial cell promotes microglial M1 polarization. Cell Mol Biol Lett 2023; 28:18. [PMID: 36870962 PMCID: PMC9985860 DOI: 10.1186/s11658-023-00432-1] [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: 11/09/2022] [Accepted: 02/17/2023] [Indexed: 03/06/2023] Open
Abstract
BACKGROUND Brain microvascular endothelial cell (BMEC) injury can affect neuronal survival by modulating immune responses through the microenvironment. Exosomes are important vehicles of transport between cells. However, the regulation of the subtypes of microglia by BMECs through the exosome transport of microRNAs (miRNAs) has not been established. METHODS In this study, exosomes from normal and oxygen-glucose deprivation (OGD)-cultured BMECs were collected, and differentially expressed miRNAs were analyzed. BMEC proliferation, migration, and tube formation were analyzed using MTS, transwell, and tube formation assays. M1 and M2 microglia and apoptosis were analyzed using flow cytometry. miRNA expression was analyzed using real-time polymerase chain reaction (RT-qPCR), and IL-1β, iNOS, IL-6, IL-10, and RC3H1 protein concentrations were analyzed using western blotting. RESULTS We found that miR-3613-3p was enriched in BMEC exosome by miRNA GeneChip assay and RT-qPCR analysis. miR-3613-3p knockdown enhanced cell survival, migration, and angiogenesis in the OGD-treated BMECs. In addition, BMECs secrete miR-3613-3p to transfer into microglia via exosomes, and miR-3613-3p binds to the RC3H1 3' untranslated region (UTR) to reduce RC3H1 protein levels in microglia. Exosomal miR-3613-3p promotes microglial M1 polarization by inhibiting RC3H1 protein levels. BMEC exosomal miR-3613-3p reduces neuronal survival by regulating microglial M1 polarization. CONCLUSIONS miR-3613-3p knockdown enhances BMEC functions under OGD conditions. Interfering with miR-3613-3p expression in BMSCs reduced the enrichment of miR-3613-3p in exosomes and enhanced M2 polarization of microglia, which contributed to reduced neuronal apoptosis.
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Li Z, Rong YL, Zhang YS. MiR-33-5p alleviates spinal cord injury in rats and protects PC12 cells from lipopolysaccharide-induced apoptosis. Kaohsiung J Med Sci 2023; 39:52-60. [PMID: 36354186 DOI: 10.1002/kjm2.12610] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Revised: 09/14/2022] [Accepted: 09/15/2022] [Indexed: 11/11/2022] Open
Abstract
MicroRNAs (miRNAs) exert critical effects in spinal cord injury (SCI). The miR-33-5p level is found to be lower in rats with SCI compared with that in control (untreated) and sham-operated (laminectomy but no contusion) rats. Therefore, we investigated the biological functions of miR-33-5p and related mechanisms in SCI pathogenesis and development. An in vivo SCI model and a lipopolysaccharide (LPS)-induced cell model of SCI were established. A downregulated level of miR-33-5p in experimental SCI and in LPS-treated PC12 cells was revealed by reverse transcriptase-quantitative polymerase chain reaction (RT-qPCR). MiR-33-5p upregulation alleviated the leakage of the blood-spinal cord barrier (BSCB) induced by SCI and improved the neurological functions of SCI rats, as evidenced by the Basso, Beattie, and Bresnahan (BBB) scores and Evans blue staining. The regulatory relationship between miR-33-5p and Rps6kb1 was verified by luciferase reporter assays, which demonstrated that miR-33-5p bound to the Rps6kb1 3'UTR. Moreover, as MTT assays and flow cytometry showed, the suppressive effects of miR-33-5p upregulation on cell apoptosis were attenuated by Rps6kb1 upregulation. In conclusion, miR-33-5p ameliorates SCI in rats and inhibits the LPS-induced apoptosis of PC12 cells.
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Affiliation(s)
- Zhe Li
- Department of Second Orthopaedic Surgery, The Fourth Affiliated Hospital of China Medical University, Shenyang, Liaoning, China
| | - Yan-Long Rong
- Department of Orthopedic, TieMei General Hospital of Liaoning Province Health Industrial Group, Tieling, Liaoning, China
| | - Yuan-Shi Zhang
- Department of Second Orthopaedic Surgery, The Fourth Affiliated Hospital of China Medical University, Shenyang, Liaoning, China
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Molecular Mechanism Underlying Role of the XBP1s in Cardiovascular Diseases. J Cardiovasc Dev Dis 2022; 9:jcdd9120459. [PMID: 36547457 PMCID: PMC9782920 DOI: 10.3390/jcdd9120459] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 12/01/2022] [Accepted: 12/09/2022] [Indexed: 12/23/2022] Open
Abstract
Spliced X-box binding protein-1 (XBP1s) is a protein that belongs to the cAMP-response element-binding (CREB)/activating transcription factor (ATF) b-ZIP family with a basic-region leucine zipper (bZIP). There is mounting evidence to suggest that XBP1s performs a critical function in a range of different cardiovascular diseases (CVDs), indicating that it is necessary to gain a comprehensive knowledge of the processes involved in XBP1s in various disorders to make progress in research and clinical therapy. In this research, we provide a summary of the functions that XBP1s performs in the onset and advancement of CVDs such as atherosclerosis, hypertension, cardiac hypertrophy, and heart failure. Furthermore, we discuss XBP1s as a novel therapeutic target for CVDs.
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Liu Y, Li W, Liu Y, Jiang Y, Wang Y, Xu Z, Cui D, Gao L. MicroRNA-223 Attenuates Stretch-Injury-Induced Apoptosis in Brain Microvascular Endothelial Cells by Regulating RhoB Expression. Brain Sci 2022; 12:brainsci12091157. [PMID: 36138893 PMCID: PMC9496931 DOI: 10.3390/brainsci12091157] [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: 08/01/2022] [Revised: 08/22/2022] [Accepted: 08/26/2022] [Indexed: 11/16/2022] Open
Abstract
MiR-223 is a miRNA with important functions in apoptosis, carcinogenesis, and inflammation, and it was demonstrated to be over-expressed in brain tissue after traumatic brain injury (TBI). However, few studies have focused on its role in protecting brain microvascular endothelial cells (BMECs). This study evaluated the protective effect of miR-223 on BMECs after stretch injury (SI). bEnd.3 cells (BMECs of mouse) were transfected with overexpressing and blocking lentivirus of miR-223, then were subjected to SI. After immunofluorescence assay, it was demonstrated that miR-223 overexpression significantly rescued the SI-induced loss of ZO-1 (Zonula Occludens 1, tight junction protein) (p < 0.01), while miR-223 blocking exacerbated the loss of ZO-1 (p < 0.05). Flow cytometry confirmed a significant increase in the proportion of apoptotic bEnd.3 cells after SI, and miR-223 overexpression reduced this proportion (p < 0.001). The result of Western blot revealed that miR-223 overexpression significantly reduced the expression of cleaved caspase-3 (cl-caspase 3) (p < 0.05) and RhoB (p < 0.01), while miR-223 blocking increased the expression of these proteins (p < 0.05, p < 0.001). Additionally, knockdown of RhoB significantly reduced the expression of cl-caspase 3 (p < 0.001). These findings suggested that miR-223 can alleviate SI-induced apoptosis of BMECs, and this anti-apoptotic effect is at least partially achieved by inhibiting the expression of RhoB. Moreover, miR-223 may play a role in maintaining the integrity of BBB during TBI.
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Affiliation(s)
- Yingliang Liu
- Department of Neurosurgery, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Wenjing Li
- Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Yingxiu Liu
- Department of Neurology, Zibo Ninth People’s Hospital, Zibo 256400, China
| | - Yang Jiang
- Department of Neurosurgery, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Yida Wang
- Department of Neurosurgery, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Zhiming Xu
- Department of Neurosurgery, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai 200233, China
| | - Daming Cui
- Department of Neurosurgery, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai 200072, China
- Correspondence: (D.C.); (L.G.)
| | - Liang Gao
- Department of Neurosurgery, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai 200072, China
- Correspondence: (D.C.); (L.G.)
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Lõhelaid H, Anttila JE, Liew HK, Tseng KY, Teppo J, Stratoulias V, Airavaara M. UPR Responsive Genes Manf and Xbp1 in Stroke. Front Cell Neurosci 2022; 16:900725. [PMID: 35783104 PMCID: PMC9240287 DOI: 10.3389/fncel.2022.900725] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 05/02/2022] [Indexed: 11/13/2022] Open
Abstract
Stroke is a devastating medical condition with no treatment to hasten recovery. Its abrupt nature results in cataclysmic changes in the affected tissues. Resident cells fail to cope with the cellular stress resulting in massive cell death, which cannot be endogenously repaired. A potential strategy to improve stroke outcomes is to boost endogenous pro-survival pathways. The unfolded protein response (UPR), an evolutionarily conserved stress response, provides a promising opportunity to ameliorate the survival of stressed cells. Recent studies from us and others have pointed toward mesencephalic astrocyte-derived neurotrophic factor (MANF) being a UPR responsive gene with an active role in maintaining proteostasis. Its pro-survival effects have been demonstrated in several disease models such as diabetes, neurodegeneration, and stroke. MANF has an ER-signal peptide and an ER-retention signal; it is secreted by ER calcium depletion and exits cells upon cell death. Although its functions remain elusive, conducted experiments suggest that the endogenous MANF in the ER lumen and exogenously administered MANF protein have different mechanisms of action. Here, we will revisit recent and older bodies of literature aiming to delineate the expression profile of MANF. We will focus on its neuroprotective roles in regulating neurogenesis and inflammation upon post-stroke administration. At the same time, we will investigate commonalities and differences with another UPR responsive gene, X-box binding protein 1 (XBP1), which has recently been associated with MANF’s function. This will be the first systematic comparison of these two UPR responsive genes aiming at revealing previously uncovered associations between them. Overall, understanding the mode of action of these UPR responsive genes could provide novel approaches to promote cell survival.
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Affiliation(s)
- Helike Lõhelaid
- HiLIFE – Neuroscience Center, University of Helsinki, Helsinki, Finland
- *Correspondence: Helike Lõhelaid,
| | - Jenni E. Anttila
- Drug Research Program, Division of Pharmacology and Pharmacotherapy, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland
- Individualized Drug Therapy Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Hock-Kean Liew
- Department of Medical Research, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien City, Taiwan
| | - Kuan-Yin Tseng
- Department of Neurological Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Jaakko Teppo
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland
| | | | - Mikko Airavaara
- HiLIFE – Neuroscience Center, University of Helsinki, Helsinki, Finland
- Drug Research Program, Division of Pharmacology and Pharmacotherapy, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland
- Mikko Airavaara,
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13
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Mathew S, Sivasubbu S. Long Non Coding RNA Based Regulation of Cerebrovascular Endothelium. Front Genet 2022; 13:834367. [PMID: 35495157 PMCID: PMC9043600 DOI: 10.3389/fgene.2022.834367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Accepted: 03/24/2022] [Indexed: 11/13/2022] Open
Abstract
The rapid and high throughput discovery of long non coding RNAs (lncRNAs) has far outstripped the functional annotation of these novel transcripts in their respective cellular contexts. The cells of the blood brain barrier (BBB), especially the cerebrovascular endothelial cells (CVECs), are strictly regulated to maintain a controlled state of homeostasis for undisrupted brain function. Several key pathways are understood in CVEC function that lead to the development and maintenance of their barrier properties, the dysregulation of which leads to BBB breakdown and neuronal injury. Endothelial lncRNAs have been discovered and functionally validated in the past decade, spanning a wide variety of regulatory mechanisms in health and disease. We summarize here the lncRNA-mediated regulation of established pathways that maintain or disrupt the barrier property of CVECs, including in conditions such as ischemic stroke and glioma. These lncRNAs namely regulate the tight junction assembly/disassembly, angiogenesis, autophagy, apoptosis, and so on. The identification of these lncRNAs suggests a less understood mechanistic layer, calling for further studies in appropriate models of the blood brain barrier to shed light on the lncRNA-mediated regulation of CVEC function. Finally, we gather various approaches for validating lncRNAs in BBB function in human organoids and animal models and discuss the therapeutic potential of CVEC lncRNAs along with the current limitations.
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Affiliation(s)
- Samatha Mathew
- CSIR Institute of Genomics and Integrative Biology (CSIR-IGIB), New Delhi, India,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Sridhar Sivasubbu
- CSIR Institute of Genomics and Integrative Biology (CSIR-IGIB), New Delhi, India,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India,*Correspondence: Sridhar Sivasubbu,
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14
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An F, Yin Y, Ju W. Long noncoding RNA DANCR expression and its predictive value in patients with atherosclerosis. Bioengineered 2022; 13:6919-6928. [PMID: 35235755 PMCID: PMC8974009 DOI: 10.1080/21655979.2022.2033408] [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] [Indexed: 11/16/2022] Open
Abstract
Long noncoding RNAs (lncRNAs) act crucial roles in the progression of vascular diseases, including atherosclerosis. This study aims to investigate the expression levels of the atherosclerosis-associated lncRNA DANCR in patients diagnosed with atherosclerosis and whether its abnormal expression affects the progress of atherosclerosis. The expression of DANCR in the serum samples of all study participants was quantified using RT-qPCR. Then, the predictive capacities of DANCR for the detection of atherosclerosis patients were evaluated via receiver operating characteristic (ROC) curve analysis. The effects of DANCR on vascular smooth muscle cells (VSMCs) proliferation and migration were then explored using cell counting kit-8 (CCK-8) and Transwell migration assays. The DANCR exhibited increased expression trends in patients with atherosclerosis than healthy controls. Moreover, there were differences in the levels of low-density lipoprotein cholesterol (LDL-C), homocysteine (Hcy), and C-reactive protein (CRP) between the healthy controls and atherosclerosis patients. The DANCR expression was positively correlated with serum LDL-C, Hcy, and CRP levels. DANCR expression could distinguish patients with atherosclerosis from healthy individuals with a high area under the ROC curve (AUC), sensitivity, and specificity. Additionally, knockdown of DANCR weakened the proliferative abilities and migration capacities of VSMCs. It was also shown that DANCR could compete with miR-335-5p binding. Herein, it appears that the LncRNA DANCR was closely associated with the progression of atherosclerosis by targeting miR-335-5p, which might be a potential detective predictor and target for the treatment of atherosclerosis.
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Affiliation(s)
- Fengxia An
- Department of Health, Dongying People's Hospital, Shandong, China
| | - Yanliang Yin
- Department of Health, Dongying People's Hospital, Shandong, China
| | - Weixian Ju
- Department of Health, Dongying People's Hospital, Shandong, China
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15
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Jiang H, Niu Y, He Y, Li X, Xu Y, Liu X. Proteomic analysis reveals that Xbp1s promotes hypoxic pulmonary hypertension through the p-JNK MAPK pathway. J Cell Physiol 2021; 237:1948-1963. [PMID: 34964131 DOI: 10.1002/jcp.30664] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Revised: 12/10/2021] [Accepted: 12/13/2021] [Indexed: 01/02/2023]
Abstract
Hypoxic pulmonary hypertension (HPH) is characterized by elevated pulmonary artery resistance and vascular remodeling. Endoplasmic reticulum stress (ERS) is reported to be involved in HPH, but the underlying mechanisms remain uncertain. We found that Xbp1s, a potent transcription factor during ERS, was elevated in hypoxic-cultured rat PASMCs and lung tissues from HPH rats. Our in vitro experiments demonstrated that overexpressing Xbp1s can promote proliferation, cell viability, and migration and inhibit the apoptosis of PASMCs, while silencing Xbp1s led to the opposite. Through data-independent acquisition (DIA) mass spectrometry, we identified extensive proteomic alterations regulated by hypoxia and Xbp1s. Further validation revealed that p-JNK, rather than p-ERK or p-p38, was the downstream effector of Xbp1s. p-JNK inhibition reversed the biological effects of Xbp1s overexpression in vitro. In the animal HPH model, rats were randomly assigned to five groups: normoxia, hypoxia, hypoxia+AAV-CTL (control), hypoxia+AAV-Xbp1s (prevention), and hypoxia+AAV-Xbp1s (therapy). Adeno-associated virus (AAV) serotype 1-mediated Xbp1s knockdown in the prevention and therapy groups significantly reduced right ventricular systolic pressure, total pulmonary resistance, right ventricular hypertrophy, and the medial wall thickness of muscularized distal pulmonary arterioles; AAV-Xbp1s also decreased proliferating cell nuclear antigen expression and increased apoptosis in pulmonary arterioles. Collectively, our findings demonstrated that the Xbp1s-p-JNK pathway is important in hypoxic vascular remodeling and that targeting this pathway could be an effective strategy to prevent and alleviate HPH development.
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Affiliation(s)
- Hongxia Jiang
- Department of Pulmonary and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Key Laboratory of Pulmonary Diseases, National Ministry of Health of The People's Republic of China, Wuhan, China
| | - Yang Niu
- Department of Pulmonary and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Key Laboratory of Pulmonary Diseases, National Ministry of Health of The People's Republic of China, Wuhan, China
| | - Yuanzhou He
- Department of Pulmonary and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Key Laboratory of Pulmonary Diseases, National Ministry of Health of The People's Republic of China, Wuhan, China
| | - Xiaochen Li
- Department of Pulmonary and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Key Laboratory of Pulmonary Diseases, National Ministry of Health of The People's Republic of China, Wuhan, China
| | - Yongjian Xu
- Department of Pulmonary and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Key Laboratory of Pulmonary Diseases, National Ministry of Health of The People's Republic of China, Wuhan, China
| | - Xiansheng Liu
- Department of Pulmonary and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Key Laboratory of Pulmonary Diseases, National Ministry of Health of The People's Republic of China, Wuhan, China
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16
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Zhang S, Zhu T, Li Q, Sun G, Sun X. Long Non-Coding RNA-Mediated Competing Endogenous RNA Networks in Ischemic Stroke: Molecular Mechanisms, Therapeutic Implications, and Challenges. Front Pharmacol 2021; 12:765075. [PMID: 34867389 PMCID: PMC8635732 DOI: 10.3389/fphar.2021.765075] [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: 08/26/2021] [Accepted: 10/20/2021] [Indexed: 12/20/2022] Open
Abstract
Ischemic stroke (IS) is a disease that is characterized by high mortality and disability. Recent studies have shown that LncRNA-mediated competing endogenous RNA (ceRNA) networks play roles in the occurrence and development of cerebral I/R injury by regulating different signaling pathways. However, no systematic analysis of ceRNA mechanisms in IS has been reported. In this review, we discuss molecular mechanisms of LncRNA-mediated ceRNA networks under I/R injury. The expression levels of LncRNAs, microRNAs (miRNAs), and messenger RNAs (mRNAs) and their effects in four major cell types of the neurovascular unit (NVU) are also involved. We further summarize studies of LncRNAs as biomarkers and therapeutic targets. Finally, we analyze the advantages and limitations of using LncRNAs as therapeutics for IS.
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Affiliation(s)
- Shuxia Zhang
- Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China.,Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,Key Laboratory of Efficacy Evaluation of Chinese Medicine Against Glycolipid Metabolic Disorders, State Administration of Traditional Chinese Medicine, Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China.,Zhongguancun Open Laboratory of the Research and Development of Natural Medicine and Health Products, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,Key Laboratory of New Drug Discovery Based on Classic Chinese Medicine Prescription, Chinese Academy of Medical Sciences, Beijing, China
| | - Ting Zhu
- Institute of Neuroregeneration and Neurorehabilitation, Qingdao University, Qingdao, China
| | - Qiaoyu Li
- Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China.,Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,Key Laboratory of Efficacy Evaluation of Chinese Medicine Against Glycolipid Metabolic Disorders, State Administration of Traditional Chinese Medicine, Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China.,Zhongguancun Open Laboratory of the Research and Development of Natural Medicine and Health Products, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,Key Laboratory of New Drug Discovery Based on Classic Chinese Medicine Prescription, Chinese Academy of Medical Sciences, Beijing, China
| | - Guibo Sun
- Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China.,Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,Key Laboratory of Efficacy Evaluation of Chinese Medicine Against Glycolipid Metabolic Disorders, State Administration of Traditional Chinese Medicine, Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China.,Zhongguancun Open Laboratory of the Research and Development of Natural Medicine and Health Products, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,Key Laboratory of New Drug Discovery Based on Classic Chinese Medicine Prescription, Chinese Academy of Medical Sciences, Beijing, China
| | - Xiaobo Sun
- Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China.,Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,Key Laboratory of Efficacy Evaluation of Chinese Medicine Against Glycolipid Metabolic Disorders, State Administration of Traditional Chinese Medicine, Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China.,Zhongguancun Open Laboratory of the Research and Development of Natural Medicine and Health Products, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,Key Laboratory of New Drug Discovery Based on Classic Chinese Medicine Prescription, Chinese Academy of Medical Sciences, Beijing, China
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17
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Emerging role of long non-coding RNAs in endothelial dysfunction and their molecular mechanisms. Biomed Pharmacother 2021; 145:112421. [PMID: 34798473 DOI: 10.1016/j.biopha.2021.112421] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 11/10/2021] [Accepted: 11/10/2021] [Indexed: 02/06/2023] Open
Abstract
Long non-coding RNAs (lncRNAs) are the novel class of transcripts involved in transcriptional, post-transcriptional, translational, and post-translational regulation of physiology and the pathology of diseases. Studies have evidenced that the impairment of endothelium is a critical event in the pathogenesis of atherosclerosis and its complications. Endothelial dysfunction is characterized by an imbalance in vasodilation and vasoconstriction, oxidative stress, proinflammatory factors, and nitric oxide bioavailability. Disruption of the endothelial barrier permeability, the first step in developing atherosclerotic lesions is a consequence of endothelial dysfunction. Though several factors interfere with the normal functioning of the endothelium, intrinsic epigenetic mechanisms governing endothelial function are regulated by lncRNAs and perturbations contribute to the pathogenesis of the disease. This review comprehensively addresses the biogenesis of lncRNA and molecular mechanisms underlying and regulation in endothelial function. An insight correlating lncRNAs and endothelial dysfunction-associated diseases can positively impact the development of novel biomarkers and therapeutic targets in endothelial dysfunction-associated diseases and treatment strategies.
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18
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Jiang H, Ding D, He Y, Li X, Xu Y, Liu X. Xbp1s-Ddit3 promotes MCT-induced pulmonary hypertension. Clin Sci (Lond) 2021; 135:2467-2481. [PMID: 34676402 PMCID: PMC8564003 DOI: 10.1042/cs20210612] [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: 06/11/2021] [Revised: 10/13/2021] [Accepted: 10/21/2021] [Indexed: 12/12/2022]
Abstract
Pulmonary hypertension (PH) is a life-threatening disease characterized by vascular remodeling. Exploring new therapy target is urgent. The purpose of the present study is to investigate whether and how spliced x-box binding protein 1 (xbp1s), a key component of endoplasmic reticulum stress (ERS), contributes to the pathogenesis of PH. Forty male SD rats were randomly assigned to four groups: Control, Monocrotaline (MCT), MCT+AAV-CTL (control), and MCT+AAV-xbp1s. The xbp1s protein levels were found to be elevated in lung tissues of the MCT group. Intratracheal injection of adeno-associated virus serotype 1 carrying xbp1s shRNA (AAV-xbp1s) to knock down the expression of xbp1s effectively ameliorated the MCT-induced elevation of right ventricular systolic pressure (RVSP), total pulmonary resistance (TPR), right ventricular hypertrophy and medial wall thickness of muscularized distal pulmonary arterioles. The abnormally increased positive staining rates of proliferating cell nuclear antigen (PCNA) and Ki67 and decreased positive staining rates of terminal deoxynucleotidyl transferase (TdT)-mediated dUTP nick end labeling (TUNEL) in pulmonary arterioles were also reversed in the MCT+AAV-xbp1s group. For mechanistic exploration, bioinformatics prediction of the protein network was performed on the STRING database, and further verification was performed by qRT-PCR, Western blots and co-immunoprecipitation (Co-IP). DNA damage-inducible transcript 3 (Ddit3) was identified as a downstream protein that interacted with xbp1s. Overexpression of Ddit3 restored the decreased proliferation, migration and cell viability caused by silencing of xbp1s. The protein level of Ddit3 was also highly consistent with xbp1s in the animal model. Taken together, our study demonstrated that xbp1s-Ddit3 may be a potential target to interfere with vascular remodeling in PH.
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MESH Headings
- Animals
- Apoptosis
- Arterial Pressure
- Cell Movement
- Cell Proliferation
- Cells, Cultured
- Disease Models, Animal
- Hypertension, Pulmonary/chemically induced
- Hypertension, Pulmonary/genetics
- Hypertension, Pulmonary/metabolism
- Hypertension, Pulmonary/physiopathology
- Hypertrophy, Right Ventricular/chemically induced
- Hypertrophy, Right Ventricular/metabolism
- Hypertrophy, Right Ventricular/physiopathology
- Male
- Monocrotaline
- Muscle, Smooth, Vascular/metabolism
- Muscle, Smooth, Vascular/physiopathology
- Myocytes, Smooth Muscle/metabolism
- Pulmonary Artery/metabolism
- Pulmonary Artery/physiopathology
- Rats, Sprague-Dawley
- Signal Transduction
- Transcription Factor CHOP/genetics
- Transcription Factor CHOP/metabolism
- Vascular Remodeling
- Ventricular Dysfunction, Right/chemically induced
- Ventricular Dysfunction, Right/metabolism
- Ventricular Dysfunction, Right/physiopathology
- Ventricular Function, Right
- X-Box Binding Protein 1/genetics
- X-Box Binding Protein 1/metabolism
- Rats
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Affiliation(s)
- Hongxia Jiang
- Department of Pulmonary and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Key Laboratory of Pulmonary Diseases, National Ministry of Health of The People's Republic of China, Wuhan, China
| | - Dandan Ding
- Department of Pulmonary and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Key Laboratory of Pulmonary Diseases, National Ministry of Health of The People's Republic of China, Wuhan, China
| | - Yuanzhou He
- Department of Pulmonary and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Key Laboratory of Pulmonary Diseases, National Ministry of Health of The People's Republic of China, Wuhan, China
| | - Xiaochen Li
- Department of Pulmonary and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Key Laboratory of Pulmonary Diseases, National Ministry of Health of The People's Republic of China, Wuhan, China
| | - Yongjian Xu
- Department of Pulmonary and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Key Laboratory of Pulmonary Diseases, National Ministry of Health of The People's Republic of China, Wuhan, China
| | - Xiansheng Liu
- Department of Pulmonary and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Key Laboratory of Pulmonary Diseases, National Ministry of Health of The People's Republic of China, Wuhan, China
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19
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Alaqeeli M, Mayaki D, Hussain SNA. Long Non-coding RNA Rhabdomyosarcoma 2-Associated Transcript Regulates Angiogenesis in Endothelial Cells. Front Physiol 2021; 12:729157. [PMID: 34744768 PMCID: PMC8567064 DOI: 10.3389/fphys.2021.729157] [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: 06/22/2021] [Accepted: 09/24/2021] [Indexed: 11/13/2022] Open
Abstract
Background: Long non-coding RNAs (lncRNAs) are non-coding RNAs that have more than 200 nucleotides. They have recently emerged as important regulators of angiogenesis. To identify novel lncRNAs that may be involved in the regulation of angiogenesis, we detected the mRNA of 84 lncRNAs in human umbilical vein endothelial cells (HUVECs) exposed to hypoxia for 24h. One of these, rhabdomyosarcoma 2-associated transcript (RMST), is significantly upregulated by hypoxia. Little is known about the presence and roles of RMST in EC function. Objective: The main objective of the study was to investigate the regulation of RMST in ECs and to determine its role in EC survival, proliferation, migration, and differentiation. Methods: Using qPCR, basal mRNA levels of 10 RMST isoforms in HUVECs were measured. Levels were then measured in response to 24h of hypoxia, 7days of differentiation in a co-culture assay, and exposure to four different angiogenesis factors. Functional roles of RMST in EC survival, migration, and differentiation were quantified by using a loss-of-function approach (transfection with single-stranded antisense LNA GapmeRs). EC survival was measured using cell counts and crystal violet assays. Cell migration and differentiation were measured using scratch wound healing and Matrigel® differentiation assays, respectively. Results: Five RMST isoforms (RMST-202, -203, -204, -206, and -207) were detected in HUVECs and human microvascular endothelial cells (HMEC-1s). Other types of vascular cells, including human aortic valve interstitial cells and human aortic smooth muscle cells, did not display this expression profile. RMST was significantly upregulated in response to 24h of hypoxia and in response to 7days of HUVEC co-culture with human lung fibroblasts. RMST was significantly downregulated by angiopoietin-2 (Ang-2), but not by VEGF, FGF-2, or angiopoietin-1 (Ang-1). Selective knockdown of RMST demonstrated that it promotes EC survival in response to serum deprivation. It is also required for VEGF- and Ang-1-induced EC survival and migration, but not for differentiation. Conclusion: We conclude that RMST is expressed in human ECs and that this expression is upregulated in response to hypoxia and during differentiation into capillary-like structures. We also conclude that RMST plays important roles in EC survival and migration.
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Affiliation(s)
- Maha Alaqeeli
- Translational Research in Respiratory Diseases Program, Research Institute of the McGill University Health Centre, Department of Critical Care, McGill University Health Centre, Montréal, QC, Canada
| | - Dominique Mayaki
- Translational Research in Respiratory Diseases Program, Research Institute of the McGill University Health Centre, Department of Critical Care, McGill University Health Centre, Montréal, QC, Canada
| | - Sabah N A Hussain
- Meakins-Christie Laboratories, Department of Medicine, McGill University, Montréal, QC, Canada
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20
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Zhang M, Hamblin MH, Yin KJ. Long non-coding RNAs mediate cerebral vascular pathologies after CNS injuries. Neurochem Int 2021; 148:105102. [PMID: 34153353 DOI: 10.1016/j.neuint.2021.105102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 06/12/2021] [Accepted: 06/13/2021] [Indexed: 10/21/2022]
Abstract
Central nervous system (CNS) injuries are one of the leading causes of morbidity and mortality worldwide, accompanied with high medical costs and a decreased quality of life. Brain vascular disorders are involved in the pathological processes of CNS injuries and might play key roles for their recovery and prognosis. Recently, increasing evidence has shown that long non-coding RNAs (lncRNAs), which comprise a very heterogeneous group of non-protein-coding RNAs greater than 200 nucleotides, have emerged as functional mediators in the regulation of vascular homeostasis under pathophysiological conditions. Remarkably, lncRNAs can regulate gene transcription and translation, thus interfering with gene expression and signaling pathways by different mechanisms. Hence, a deeper insight into the function and regulatory mechanisms of lncRNAs following CNS injury, especially cerebrovascular-related lncRNAs, could help in establishing potential therapeutic strategies to improve or inhibit neurological disorders. In this review, we highlight recent advancements in understanding of the role of lncRNAs and their application in mediating cerebrovascular pathologies after CNS injury.
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Affiliation(s)
- Mengqi Zhang
- Pittsburgh Institute of Brain Disorders & Recovery, Department of Neurology, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15213, USA
| | - Milton H Hamblin
- Department of Pharmacology, Tulane University School of Medicine, 1430 Tulane Avenue SL-83, New Orleans, LA, 70112, USA
| | - Ke-Jie Yin
- Pittsburgh Institute of Brain Disorders & Recovery, Department of Neurology, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15213, USA; Geriatric Research, Education and Clinical Center, Veterans Affairs Pittsburgh Healthcare System, Pittsburgh, PA, 15261, USA.
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21
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Sung HY, Choi EN, Han J, Chae YJ, Im SW, Kim HS, Park EM, Ahn JH. Protective role of ABCA1 in ischemic preconditioning is mediated by downregulation of miR-33-5p and miR-135-5p. Sci Rep 2021; 11:12511. [PMID: 34131232 PMCID: PMC8206355 DOI: 10.1038/s41598-021-91982-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 06/03/2021] [Indexed: 11/22/2022] Open
Abstract
Ischemic preconditioning (IPC) significantly reduces ischemia–reperfusion injury in the brain by inducing ischemic tolerance. Although emerging evidence suggests that microRNAs (miRNAs) contribute to the pathogenesis of brain ischemia and IPC-induced neuroprotection, the role of miRNAs and their underlying mechanisms are still unclear. IPC was induced in male C57BL/6 mice by brief bilateral common carotid artery occlusion. After 24 h, mice underwent transient middle cerebral artery occlusion followed by 3 h of reperfusion. Expression levels of messenger RNAs (mRNAs) and proteins were examined in the ipsilateral cortex, and mimics and inhibitors of selective miRNAs were transfected into Neuro-2a cells before oxygen–glucose deprivation (OGD). Post-IPC miRNA expression profiling identified neuroprotection-associated changes in miRNA expression in the ipsilateral cortex after ischemic stroke. Among them, miR-33-5p and miR-135b-5p were significantly downregulated by IPC. Inhibition of miR-33-5p and miR-135b-5p expression protected Neuro-2a cells from OGD-induced apoptosis. Inhibition of these two miRNAs significantly increased mRNA and protein levels of ATP-binding cassette subfamily A member 1 (ABCA1), and a binding assay showed that these two miRNAs showed specificity for Abca1 mRNA. Overexpression of ABCA1 decreased the Bax/Bcl2 mRNA ratio and activation of caspase-9 and caspase-3, whereas knockdown of ABCA1 expression increased the Bax/Bcl2 mRNA ratio and the percentage of Neuro-2a cells with a loss of mitochondrial membrane potential after OGD-treatment. In conclusion, ABCA1 expression is regulated by miR-33-5p and miR-135b-5p. Increased ABCA1 expression following IPC exerts a protective influence against cerebral ischemia via suppression of a mitochondria-dependent apoptosis pathway.
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Affiliation(s)
- Hye Youn Sung
- Department of Biochemistry, College of Medicine, Ewha Womans University, 25 Magokdong-ro 2-gil, Gangseo-gu, Seoul, 07804, Korea
| | - Eun Nam Choi
- Department of Biochemistry, College of Medicine, Ewha Womans University, 25 Magokdong-ro 2-gil, Gangseo-gu, Seoul, 07804, Korea
| | - Jihye Han
- Department of Biochemistry, College of Medicine, Ewha Womans University, 25 Magokdong-ro 2-gil, Gangseo-gu, Seoul, 07804, Korea
| | - Yun Ju Chae
- Department of Biochemistry, College of Medicine, Ewha Womans University, 25 Magokdong-ro 2-gil, Gangseo-gu, Seoul, 07804, Korea
| | - Sun-Wha Im
- Genomic Medicine Institute, Medical Research Center, Seoul National University, Seoul, Korea
| | - Hee-Sun Kim
- Department of Molecular Medicine, College of Medicine, Ewha Womans University, Seoul, Korea
| | - Eun-Mi Park
- Department of Pharmacology, College of Medicine, Ewha Womans University, 25 Magokdong-ro 2-gil, Gangseo-gu, Seoul, 07804, Korea.
| | - Jung-Hyuck Ahn
- Department of Biochemistry, College of Medicine, Ewha Womans University, 25 Magokdong-ro 2-gil, Gangseo-gu, Seoul, 07804, Korea.
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22
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Han R, Luo J, Wang L, Li L, Zheng H. miR-33a-5p Suppresses ox-LDL-Stimulated Calcification of Vascular Smooth Muscle Cells by Targeting METTL3. Cardiovasc Toxicol 2021; 21:737-746. [PMID: 34028661 DOI: 10.1007/s12012-021-09663-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Accepted: 05/17/2021] [Indexed: 01/22/2023]
Abstract
Oxidized low-density lipoprotein (ox-LDL) accumulation in the vascular wall plays a pivotal role in the development of atherosclerosis and vascular calcification. However, few studies focus on the regulatory roles of microRNAs in ox-LDL stimulated vascular calcification. The aim of the present study was to investigate how miR-33a-5p regulated vascular calcification stimulated by ox-LDL. In the present study, miR-33a-5p was downregulated during vascular smooth muscle cells (VSMCs) calcification and upon ox-LDL treatment. ox-LDL significantly stimulated VSMCs calcification, while miR-33a-5p overexpression by its mimics transfection inhibited alkaline phosphatase (ALP) activity, mineralization and marker genes associated with VSMCs calcification even in the presence of ox-LDL. Methyltransferase like 3 (METTL3) was the target gene of miR-33a-5p. METTL3 was upregulated during VSMCs calcification and upon ox-LDL treatment. When VSMCs were transfected with miR-33a-5p mimics, METTL3 was downregulated. METTL3 downregulation by siRNA method decreased VSMCs calcification even in the presence of ox-LDL. Taken together, these results suggest miR-33a-5p suppresses VSMCs calcification stimulated by ox-LDL via targeting METTL3, highlighting the critical role of miR-33a-5p/METTL3 in vascular calcification.
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Affiliation(s)
- Ruimei Han
- Department of Cardiology, Shanghai Xuhui Central Hospital, No. 966 Middle Huaihai Road, Shanghai, 200031, China.
| | - Jian Luo
- Department of Internal Medicine, The First Affiliated Hospital, Xinjiang Medical University, Urumqi, 830000, Xinjiang, China
| | - Lingpeng Wang
- Department of Cardiology, The First Affiliated Hospital, Xinjiang Medical University, No.137 Liyushan South Road, Urumqi, 830000, Xinjiang, China.
| | - Li Li
- Department of Internal Medicine, The Sixth Affiliated Hospital, Xinjiang Medical University, Urumqi, 830000, Xinjiang, China
| | - Hongchao Zheng
- Department of Cardiology, Shanghai Xuhui Central Hospital, No. 966 Middle Huaihai Road, Shanghai, 200031, China
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Chen M, Wei X, Shi X, Lu L, Zhang G, Huang Y, Hou J. LncRNA HIF1A-AS2 accelerates malignant phenotypes of renal carcinoma by modulating miR-30a-5p/SOX4 axis as a ceRNA. Cancer Biol Med 2021; 18:j.issn.2095-3941.2020.0209. [PMID: 33710813 PMCID: PMC8185866 DOI: 10.20892/j.issn.2095-3941.2020.0209] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Accepted: 08/21/2020] [Indexed: 12/11/2022] Open
Abstract
OBJECTIVE Several reports have proposed that lncRNAs, as potential biomarkers, participate in the progression and growth of malignant tumors. HIF1A-AS2 is a novel lncRNA and potential biomarker, involved in the genesis and development of carcinomas. However, the molecular mechanism of HIF1A-AS2 in renal carcinoma is unclear. METHODS The relative expression levels of HIF1A-AS2 and miR-30a-5p were detected using RT-qPCR in renal carcinoma tissues and cell lines. Using loss-of-function and overexpression, the biological effects of HIF1A-AS2 and miR-30a-5p in kidney carcinoma progression were characterized. Dual luciferase reporter gene analysis and Western blot were used to detect the potential mechanism of HIF1A-AS2 in renal carcinomas. RESULTS HIF1A-AS2 was upregulated in kidney carcinoma tissues when compared with para-carcinoma tissues (P < 0.05). In addition, tumor size, tumor node mestastasis stage and differentiation were identified as being closely associated with HIF1A-AS2 expression (P < 0.05). Knockdown or overexpression of HIF1A-AS2 either restrained or promoted the malignant phenotype and WNT/β-catenin signaling in renal carcinoma cells (P < 0.05). MiR-30a-5p was downregulated in renal cancers and partially reversed HIF1A-AS2 functions in malignant renal tumor cells. HIF1A-AS2 acted as a microRNA sponge that actively regulated the relative expression of SOX4 in sponging miR-30a-5p and subsequently increased the malignant phenotypes of renal carcinomas. HIF1A-AS2 showed a carcinogenic effect and miR-30a-5p acted as an antagonist of the anti-oncogene effects in the pathogenesis of renal carcinomas. CONCLUSIONS The HIF1A-AS2-miR-30a-5p-SOX4 axis was associated with the malignant progression and development of renal carcinoma. The relative expression of HIF1A-AS2 was negatively correlated with the expression of miR-30a-5p, and was closely correlated with SOX4 mRNA levels in renal cancers.
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Affiliation(s)
- Mingwei Chen
- Department of Urology, The First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - Xuedong Wei
- Department of Urology, The First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - Xiu Shi
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - Le Lu
- Department of Urology, The First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - Guangbo Zhang
- Department of Urology, The First Affiliated Hospital of Soochow University, Suzhou 215006, China
- Jiangsu Institute of Clinical Immunology, The First Affiliated Hospital of Soochow University, Jiangsu Key Laboratory of Clinical Immunology, Soochow University, Jiangsu Key Laboratory of Gastrointestinal Tumor Immunology, Suzhou 215006, China
| | - Yuhua Huang
- Department of Urology, The First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - Jianquan Hou
- Department of Urology, The First Affiliated Hospital of Soochow University, Suzhou 215006, China
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Li J, Xie J, Wang YZ, Gan YR, Wei L, Ding GW, Ding YH, Xie DX. Overexpression of lncRNA Dancr inhibits apoptosis and enhances autophagy to protect cardiomyocytes from endoplasmic reticulum stress injury via sponging microRNA-6324. Mol Med Rep 2020; 23:116. [PMID: 33300079 PMCID: PMC7723073 DOI: 10.3892/mmr.2020.11755] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Accepted: 10/19/2020] [Indexed: 12/17/2022] Open
Abstract
Endoplasmic reticulum stress (ERS) contributes to the pathogenesis of myocardial ischemia/reperfusion injury and myocardial infarction (MI). Long non-coding RNAs (lncRNAs) serve an important role in cardiovascular diseases, and lncRNA discrimination antagonizing non-protein coding RNA (Dancr) alleviates cardiomyocyte damage. microRNA (miR)-6324 was upregulated in MI model rats and was predicted to bind to Dancr. The present study aimed to investigate the role of Dancr in ERS-induced cardiomyocytes and the potential underlying mechanisms. Tunicamycin (Tm) was used to induce ERS. Cell viability, apoptosis and levels of associated proteins, ERS and autophagy in Dancr-overexpression H9C2 cells and miR-6234 mimic-transfected H9C2 cells were assessed using Cell Counting Kit-8, TUNEL staining and western blot assay, respectively. The results suggested that Dancr expression levels and cell viability were downregulated by Tm in a concentration-dependent manner compared with the control group. Tm induced apoptosis, ERS and autophagy, as indicated by an increased ratio of apoptotic cells, increased expression levels of Bax, cleaved (c)-caspase-3/9, glucose-regulated protein 78 kDa (GRP78), phosphorylated (p)-inositol-requiring enzyme-1α (IRE1α), spliced X-box-binding protein 1 (Xbp1s), IRE1α, activating transcription factor (ATF)6, ATF4, Beclin 1 and microtubule associated protein 1 light chain 3α (LC3)II/I, and decreased expression levels of Bcl-2, unspliced Xbp1 (Xbp1u) and p62 in the Tm group compared with the control group. Moreover, the results indicated that compared with the Tm + overexpression (Oe)-negative control (NC) group, the Tm + Oe-Dancr group displayed decreased apoptosis, but enhanced ERS and autophagy to restore cellular homeostasis. Compared with the Tm + Oe-NC group, the Tm + Oe-Dancr group decreased the ratio of apoptotic cells, decreased expression levels of Bax, c-caspase-3/9 and Xbp1u, and increased expression levels of Bcl-2, p-IRE1α, Xbp1s, Beclin 1 and LC3II/I. Dancr overexpression also significantly downregulated miR-6324 expression compared with Oe-NC. The dual-luciferase reporter assay further indicated an interaction between Dancr and miR-6324. In addition, miR-6324 mimic partially reversed the effects of Dancr overexpression on Tm-induced apoptosis, ERS and autophagy. In conclusion, lncRNA Dancr overexpression protected cardiomyocytes against ERS injury via sponging miR-6324, thus inhibiting apoptosis, enhancing autophagy and restoring ER homeostasis.
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Affiliation(s)
- Jiong Li
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Jing Xie
- Department of Ultrasonic Diagnosis, The First People's Hospital of Lanzhou, Lanzhou, Gansu 730050, P.R. China
| | - Yan-Zhen Wang
- Gansu Cardiovascular Institute, Lanzhou, Gansu 730050, P.R. China
| | - Yi-Rong Gan
- Gansu Cardiovascular Institute, Lanzhou, Gansu 730050, P.R. China
| | - Ling Wei
- Outpatient Department, The First People's Hospital of Lanzhou, Lanzhou, Gansu 730050, P.R. China
| | - Guan-Waner Ding
- Medical Department, Shijiazhuang People's Medical College, Shijiazhuang, Hebei 050599, P.R. China
| | - Yan-Hong Ding
- Anesthesiology Department, The First People's Hospital of Lanzhou, Lanzhou, Gansu 730050, P.R. China
| | - Ding-Xiong Xie
- Gansu Cardiovascular Institute, Lanzhou, Gansu 730050, P.R. China
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25
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Yang H, Chen Z, Fan Y, Xiang L, Hu X, Wu T, Xiao B, Feng L, Zhao Z, Chi Y, Zhang M. Difficulties and Countermeasures in Hospital Emergency Management for Fast-Lane Treatment of Acute Stroke During the COVID-19 Epidemic Prevention and Control. Front Neurol 2020; 11:604907. [PMID: 33329365 PMCID: PMC7728798 DOI: 10.3389/fneur.2020.604907] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Accepted: 10/19/2020] [Indexed: 12/11/2022] Open
Abstract
Background: Coronavirus disease 2019 (COVID-19) has a long incubation period and a high degree of infectivity. Patients may not show specific signs or symptoms of upper respiratory tract infection, and the age of onset is similar to that of stroke. Furthermore, an increase in neurological conditions, specifically acute cerebrovascular disease, has been detected. Providing emergency treatment for acute stroke in accordance with the strict epidemic control measures is currently one of the main challenges, as acute stroke is rapid onset and a major cause of death and disability globally. We aimed to evaluate the emergency treatment system for acute stroke during the epidemic control period to provide a reference and basis for informing government and medical institutions on improving patient treatment rates during this period. Methods: Difficulties faced in providing emergency treatment for stroke during an epidemic were investigated and combined with medical educational resources and clinical management experiences to construct an emergency treatment framework for acute stroke during the epidemic. Findings: Currently, emergency treatment measures for acute stroke during the epidemic control period are limited because the main focus is on identifying COVID-19 comorbidities during the critical period. Establishing standards for patients in the neurological outpatient consultation rooms and emergency observation and resuscitation zones; implementing a fast-lane system for the emergency treatment of patients with acute stroke, and strengthening ward management and medicine popularization, can improve the treatment efficiency for stroke patients during the epidemic and provide a reference for peers in clinical practice. Interpretation: Emergency treatment for acute stroke during COVID-19 epidemic control period requires a joint promotion of clinical, popularization, and teaching resources.
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Affiliation(s)
- Haojun Yang
- Department of Neurology, Xiangya Hospital of Central South University, Changsha, China
| | - Zhuohui Chen
- Department of Neurology, Xiangya Hospital of Central South University, Changsha, China
| | - Yishu Fan
- Department of Neurology, Xiangya Hospital of Central South University, Changsha, China
| | - Lan Xiang
- Department of Neurology, Hunan Provincial People's Hospital, Hunan Normal University, Changsha, China
| | - Xinhang Hu
- Department of Neurology, Xiangya Hospital of Central South University, Changsha, China
| | - Tong Wu
- Department of Neurology, Xiangya Hospital of Central South University, Changsha, China
| | - Bo Xiao
- Department of Neurology, Xiangya Hospital of Central South University, Changsha, China
| | - Li Feng
- Department of Neurology, Xiangya Hospital of Central South University, Changsha, China
| | - Zhihong Zhao
- Department of Neurology, Hunan Provincial People's Hospital, Hunan Normal University, Changsha, China
| | | | - Mengqi Zhang
- Department of Neurology, Xiangya Hospital of Central South University, Changsha, China
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26
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Chen W, Wang H, Feng J, Chen L. Overexpression of circRNA circUCK2 Attenuates Cell Apoptosis in Cerebral Ischemia-Reperfusion Injury via miR-125b-5p/GDF11 Signaling. MOLECULAR THERAPY. NUCLEIC ACIDS 2020; 22:673-683. [PMID: 33230465 PMCID: PMC7585838 DOI: 10.1016/j.omtn.2020.09.032] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Accepted: 09/25/2020] [Indexed: 12/14/2022]
Abstract
Circular RNAs (circRNAs) are expressed at high levels in the brain and are involved in various central nervous system diseases. However, the potential role of circRNAs in ischemic stroke-associated neuronal injury remains largely unknown. Herein, we uncovered the function and underlying mechanism of the circRNA UCK2 (circUCK2) in ischemia stroke. The oxygen-glucose deprivation model in HT-22 cells was used to mimic ischemia stroke in vitro. Neuronal viability and apoptosis were determined by Cell Counting Kit-8 (CCK-8) assays and TUNEL (terminal deoxynucleotidyltransferase-mediated deoxyuridine triphosphate nick end labeling) staining, respectively. Middle cerebral artery occlusion was conducted to evaluate the function of circUCK2 in mice. The levels of circUCK2 were significantly decreased in brain tissues from a mouse model of focal cerebral ischemia and reperfusion. Upregulated circUCK2 levels significantly decreased infarct volumes, attenuated neuronal injury, and improved neurological deficits. circUCK2 reduced oxygen glucose deprivation (OGD)-induced cell apoptosis by regulating transforming growth factor β (TGF-β)/mothers against decapentaplegic homolog 3 (Smad3) signaling. Furthermore, circUCK2 functioned as an endogenous miR-125b-5p sponge to inhibit miR-125b-5p activity, resulting in an increase in growth differentiation factor 11 (GDF11) expression and a subsequent amelioration of neuronal injury. Consequently, these findings showed that the circUCK2/miR-125b-5p/GDF11 axis is an essential signaling pathway during ischemia stroke. Thus, the circRNA circUCK2 may serve as a potential target for novel treatment in patients with ischemic stroke.
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Affiliation(s)
- Wanghao Chen
- Medical School of Southeast University, Nanjing 210009, P.R. China
| | - Hong Wang
- Medical School of Southeast University, Nanjing 210009, P.R. China
| | - Jia Feng
- Medical School of Southeast University, Nanjing 210009, P.R. China
| | - Lukui Chen
- Medical School of Southeast University, Nanjing 210009, P.R. China.,Department of Neurosurgery, Neuroscience Center, Cancer Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, P.R. China
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27
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Long Non-coding RNAs (lncRNAs), A New Target in Stroke. Cell Mol Neurobiol 2020; 42:501-519. [PMID: 32865676 DOI: 10.1007/s10571-020-00954-8] [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: 05/22/2020] [Accepted: 08/22/2020] [Indexed: 02/07/2023]
Abstract
Stroke has become the most disabling and the second most fatal disease in the world. It has been a top priority to reveal the pathophysiology of stroke at cellular and molecular levels. A large number of long non-coding RNAs (lncRNAs) are identified to be abnormally expressed after stroke. Here, we summarize 35 lncRNAs associated with stroke, and clarify their functions on the prognosis through signal transduction and predictive values as biomarkers. Changes in the expression of these lncRNAs mediate a wide range of pathological processes in stroke, including apoptosis, inflammation, angiogenesis, and autophagy. Based on the exploration of the functions and mechanisms of lncRNAs in stroke, more timely, accurate predictions and more effective, safer treatments for stroke could be developed.
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28
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Yan Y, Shi Q, Yuan X, Xue C, Shen S, He Y. DANCR: an emerging therapeutic target for cancer. Am J Transl Res 2020; 12:4031-4042. [PMID: 32774756 PMCID: PMC7407722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 06/03/2020] [Indexed: 06/11/2023]
Abstract
The discovery of long non-coding RNAs (lncRNAs) revolutionized the current framework for understanding the molecular mechanisms of tumorigenesis and stimulated the search for targeted cancer treatments. Among lncRNAs, differentiation antagonizing non-protein-coding RNA (DANCR) is a newly identified oncogenic gene that is upregulated in diverse cancer types and has a critical role in cancer progression. Herein, we summarize current knowledge regarding DANCR regulatory functions related to cancer cell proliferation, invasion, metastasis, and chemo-resistance. We also synthesize the effects of DANCR on cancer stemness features, the epithelial-mesenchymal transition (EMT), and angiogenesis, which are essential for the progression of malignant cancer cells. Mechanically, the interaction between DANCR and its targets including microRNAs (miRNAs), mRNAs, and proteins are also elucidated. Finally, we propose DANCR-based therapeutic approaches to provide novel insights about cancer treatment.
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Affiliation(s)
- Yuheng Yan
- Key Laboratory of Hepatobiliary and Pancreatic Surgery and Digestive Organ Transplantation of Henan Province, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, Henan, P.R. China
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, Henan, P.R. China
| | - Qingmiao Shi
- Department of Infectious Diseases, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, Henan, P.R. China
| | - Xin Yuan
- Department of Infectious Diseases, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, Henan, P.R. China
| | - Chen Xue
- Department of Infectious Diseases, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, Henan, P.R. China
| | - Shen Shen
- Department of Infectious Diseases, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, Henan, P.R. China
| | - Yuting He
- Key Laboratory of Hepatobiliary and Pancreatic Surgery and Digestive Organ Transplantation of Henan Province, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, Henan, P.R. China
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, Henan, P.R. China
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29
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Yan G, Zhao H, Hong X. LncRNA MACC1-AS1 attenuates microvascular endothelial cell injury and promotes angiogenesis under hypoxic conditions via modulating miR-6867-5p/TWIST1 in human brain microvascular endothelial cells. ANNALS OF TRANSLATIONAL MEDICINE 2020; 8:876. [PMID: 32793720 DOI: 10.21037/atm-20-4915] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Background Hypoxia following ischemic stroke is a common cause of brain insults. Mounting evidence suggests that long non-coding RNAs (lncRNAs) play a vital role in regulating certain physiological and pathological processes including ischemic stroke. For the first time, the present study investigated the effects and mechanism of LncRNA MACC1-AS1 on hypoxia-induced human brain microvascular endothelial cells (HBMECs). Methods LncRNA MACC1-AS1 levels in HBMECs were detected via reverse transcription quantitative polymerase chain reaction (RT-qPCR) assay. Reactive oxygen species (ROS), malondialdehyde (MDA), superoxide dismutase (SOD), and catalase (CAT), were detected using their respective kits. Flow cytometry and clone formation assay were performed to evaluate the effects of lncRNA MACC1-AS1 on cell apoptosis and cell proliferation respectively. Angiogenesis capacity was evaluated via tube formation assay. Transwell migration assay was performed for assessment of cell migration, Western blot assay was performed for measurement of Twist1 and VE-cadherin level, and permeability assay was performed for evaluation of the cell barrier function. The target gene was predicted via bioinformatics online tool and validated through luciferase reporter assay and RNA pull-down assay. Results LncRNA MACC1-AS1 was downregulated in hypoxia-induced HBMECs. Overexpression of LncRNA MACC1-AS1 reduced cell apoptosis and oxidative stress, while promoting cell proliferation, migration, and angiogenesis. Moreover, LncRNA MACC1-AS1 overexpression reduced cell permeability and elevated VE-cadherin level, which contributed to maintaining cell barrier function. TWIST1 was validated as the target of miR-6867-5p which was further targeted by lncRNA MACC1-AS1. Thus, LncRNA MACC1-AS1 functions in hypoxia-induced HBMECs by regulating miR-6867-5p/TWIST1. Conclusions In this study, we found that LncRNA MACC1-AS1 exerted a protective role in hypoxia-induced HBMECs via regulating miR-6867-5p/TWIST1, indicating a new therapeutic strategy for future ischemic stroke therapy.
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Affiliation(s)
- Guangjun Yan
- Department of Vascular Surgery, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Haomin Zhao
- Department of Vascular Surgery, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Xin Hong
- Department of Vascular Surgery, China-Japan Union Hospital of Jilin University, Changchun, China
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