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Quiroga D, Roman B, Salih M, Daccarett-Bojanini WN, Garbus H, Ebenebe OV, Dodd-O JM, O'Rourke B, Kohr M, Das S. Sex-dependent phosphorylation of Argonaute 2 reduces the mitochondrial translocation of miR-181c and induces cardioprotection in females. J Mol Cell Cardiol 2024; 194:59-69. [PMID: 38880194 DOI: 10.1016/j.yjmcc.2024.06.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 06/12/2024] [Accepted: 06/13/2024] [Indexed: 06/18/2024]
Abstract
Obesity-induced cardiac dysfunction is growing at an alarming rate, showing a dramatic increase in global prevalence. Mitochondrial translocation of miR-181c in cardiomyocytes results in excessive reactive oxygen species (ROS) production during obesity. ROS causes Sp1, a transcription factor for MICU1, to be degraded via post-translational modification. The subsequent decrease in MICU1 expression causes mitochondrial Ca2+ accumulation, ultimately leading to a propensity for heart failure. Herein, we hypothesized that phosphorylation of Argonaute 2 (AGO2) at Ser 387 (in human) or Ser 388 (in mouse) inhibits the translocation of miR-181c into the mitochondria by increasing the cytoplasmic stability of the RNA-induced silencing complex (RISC). Initially, estrogen offers cardioprotection in pre-menopausal females against the consequences of mitochondrial miR-181c upregulation by driving the phosphorylation of AGO2. Neonatal mouse ventricular myocytes (NMVM) treated with insulin showed an increase in pAGO2 levels and a decrease in mitochondrial miR-181c expression by increasing the binding affinity of AGO2-GW182 in the RISC. Thus, insulin treatment prevented excessive ROS production and mitochondrial Ca2+ accumulation. In human cardiomyocytes, we overexpressed miR-181c to mimic pathological conditions, such as obesity/diabetes. Treatment with estradiol (E2) for 48 h significantly lowered miR-181c entry into the mitochondria through increased pAGO2 levels. E2 treatment also normalized Sp1 degradation and MICU1 transcription that normally occurs in response to miR-181c overexpression. We then investigated these findings using an in vivo model, with age-matched male, female and ovariectomized (OVX) female mice. Consistent with the E2 treatment, we show that female hearts express higher levels of pAGO2 and thus, exhibit higher association of AGO2-GW182 in cytoplasmic RISC. This results in lower expression of mitochondrial miR-181c in female hearts compared to male or OVX groups. Further, female hearts had fewer consequences of mitochondrial miR-181c expression, such as lower Sp1 degradation and significantly decreased MICU1 transcriptional regulation. Taken together, this study highlights a potential therapeutic target for conditions such as obesity and diabetes, where miR-181c is upregulated. NEW AND NOTEWORTHY: In this study, we show that the phosphorylation of Argonaute 2 (AGO2) stabilizes the RNA-induced silencing complex in the cytoplasm, preventing miR-181c entry into the mitochondria. Furthermore, we demonstrate that treatment with estradiol can inhibit the translocation of miR-181c into the mitochondria by phosphorylating AGO2. This ultimately eliminates the downstream consequences of miR-181c overexpression by mitigating excessive reactive oxygen species production and calcium entry into the mitochondria.
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Affiliation(s)
- Diego Quiroga
- Department of Anesthesiology & Critical Care Medicine, Johns Hopkins School of Medicine, Baltimore, MD 21205, United States of America
| | - Barbara Roman
- Department of Pathology, Johns Hopkins University, Baltimore, MD 21205, United States of America
| | - Marwan Salih
- Department of Pathology, Johns Hopkins University, Baltimore, MD 21205, United States of America
| | - William N Daccarett-Bojanini
- Department of Anesthesiology & Critical Care Medicine, Johns Hopkins School of Medicine, Baltimore, MD 21205, United States of America
| | - Haley Garbus
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, United States of America
| | - Obialunanma V Ebenebe
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, United States of America
| | - Jeffrey M Dodd-O
- Department of Anesthesiology & Critical Care Medicine, Johns Hopkins School of Medicine, Baltimore, MD 21205, United States of America
| | - Brian O'Rourke
- Division of Cardiology, Department of Medicine, Johns Hopkins School of Medicine, Baltimore, MD 21205, United States of America
| | - Mark Kohr
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, United States of America
| | - Samarjit Das
- Department of Anesthesiology & Critical Care Medicine, Johns Hopkins School of Medicine, Baltimore, MD 21205, United States of America; Department of Pathology, Johns Hopkins University, Baltimore, MD 21205, United States of America.
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Boen JRA, Gevaert AB, Dendooven A, Krüger D, Tubeeckx M, Van Fraeyenhove J, Bruyns T, Segers VFM, Van Craenenbroeck EM. Divergent cardiac and renal effects of miR-181c-5p inhibition in a rodent heart failure model. Front Cardiovasc Med 2024; 11:1383046. [PMID: 38725830 PMCID: PMC11079209 DOI: 10.3389/fcvm.2024.1383046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Accepted: 04/12/2024] [Indexed: 05/12/2024] Open
Abstract
Aims MiR-181c-5p overexpression associates with heart failure (HF) and cardiac damage, but the underlying pathophysiology remains unclear. This study investigated the effect of miR-181c-5p inhibition on cardiac function and fibrosis in a rodent model of diastolic dysfunction, and evaluated additional effects on kidney as relevant comorbid organ. Methods and results Diastolic dysfunction was induced in male C57/BL6J mice (n = 20) by combining high-fat diet, L-NG-nitroarginine methyl ester, and angiotensin II administration, and was compared to sham controls (n = 18). Mice were randomized to subcutaneous miR-181c-5p antagomiR (INH) or scrambled antagomiR injections (40 mg/kg/week). HF mice demonstrated diastolic dysfunction and increased fibrosis, which was attenuated by INH treatment. Remarkably, HF + INH animals had a threefold higher mortality rate (60%) compared to HF controls (20%). Histological examination revealed increased glomerular damage in all INH treated mice, and signs of thrombotic microangiopathy (TMA) in mice who died prematurely. Quantitative polymerase chain reaction demonstrated a miR-181c-5p-related downregulation of cardiac but not renal Tgfbr1 in HF + INH mice, while INH treatment reduced renal but not cardiac Vegfa expression in all mice. Conclusion This study demonstrates cardiac anti-fibrotic effects of miR-181c-5p inhibition in a rodent HF model through targeting of Tgfbr1 in the heart. Despite improved diastolic function, HF + INH mice had higher mortality due to increased predisposition for TMA, increased renal fibrosis and glomerular damage, associated with Vegfa downregulation in kidneys.
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Affiliation(s)
- Jente R. A. Boen
- Research Group Cardiovascular Diseases, GENCOR Department, University of Antwerp, Wilrijk, Belgium
- Laboratory of Physiopharmacology, GENCOR Department, University of Antwerp, Wilrijk, Belgium
| | - Andreas B. Gevaert
- Research Group Cardiovascular Diseases, GENCOR Department, University of Antwerp, Wilrijk, Belgium
- Department of Cardiology, Antwerp University Hospital (UZA), Edegem, Belgium
| | - Amélie Dendooven
- Department of Pathology, Ghent University Hospital, Gent, Belgium
- Laboratory of Experimental Medicine and Pediatrics, University of Antwerp, Wilrijk, Belgium
| | - Dustin Krüger
- Laboratory of Physiopharmacology, GENCOR Department, University of Antwerp, Wilrijk, Belgium
| | - Michiel Tubeeckx
- Laboratory of Physiopharmacology, GENCOR Department, University of Antwerp, Wilrijk, Belgium
| | - Jens Van Fraeyenhove
- Laboratory of Physiopharmacology, GENCOR Department, University of Antwerp, Wilrijk, Belgium
| | - Tine Bruyns
- Laboratory of Physiopharmacology, GENCOR Department, University of Antwerp, Wilrijk, Belgium
| | - Vincent F. M. Segers
- Laboratory of Physiopharmacology, GENCOR Department, University of Antwerp, Wilrijk, Belgium
- Department of Cardiology, Antwerp University Hospital (UZA), Edegem, Belgium
| | - Emeline M. Van Craenenbroeck
- Research Group Cardiovascular Diseases, GENCOR Department, University of Antwerp, Wilrijk, Belgium
- Department of Cardiology, Antwerp University Hospital (UZA), Edegem, Belgium
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Xu C, Hu L, Zeng J, Wu A, Deng S, Zhao Z, Geng K, Luo J, Wang L, Zhou X, Huang W, Long Y, Song J, Zheng S, Wu J, Chen Q. Gynura divaricata (L.) DC. promotes diabetic wound healing by activating Nrf2 signaling in diabetic rats. JOURNAL OF ETHNOPHARMACOLOGY 2024; 323:117638. [PMID: 38135237 DOI: 10.1016/j.jep.2023.117638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 12/08/2023] [Accepted: 12/19/2023] [Indexed: 12/24/2023]
Abstract
THE ETHNOPHARMACOLOGICAL SIGNIFICANCE Diabetic chronic foot ulcers pose a significant therapeutic challenge as a result of the oxidative stress caused by hyperglycemia. Which impairs angiogenesis and delays wound healing, potentially leading to amputation. Gynura divaricata (L.) DC. (GD), a traditional Chinese herbal medicine with hypoglycemic effects, has been proposed as a potential therapeutic agent for diabetic wound healing. However, the underlying mechanisms of its effects remain unclear. AIM OF THE STUDY In this study, we aimed to reveal the effect and potential mechanisms of GD on accelerating diabetic wound healing in vitro and in vivo. MATERIALS AND METHODS The effects of GD on cell proliferation, apoptosis, reactive oxygen species (ROS) production, migration, mitochondrial membrane potential (MMP), and potential molecular mechanisms were investigated in high glucose (HG) stimulated human umbilical vein endothelial cells (HUVECs) using CCK-8, flow cytometry assay, wound healing assay, immunofluorescence, DCFH-DA staining, JC-1 staining, and Western blot. Full-thickness skin defects were created in STZ-induced diabetic rats, and wound healing rate was tracked by photographing them every day. HE staining, immunohistochemistry, and Western blot were employed to investigate the effect and molecular mechanism of GD on wound healing in diabetic rats. RESULTS GD significantly improved HUVEC survival, decreased apoptosis, lowered ROS production, restored MMP, improved migration ability, and raised VEGF expression. The use of Nrf2-siRNA completely abrogated these effects. Topical application of GD promoted angiogenesis and granulation tissue growth, resulting in faster healing of diabetic wounds. The expression of VEGF, CD31, and VEGFR was elevated in the skin tissue of diabetic rats after GD treatment, which upregulated HO-1, NQO-1, and Bcl-2 expression while downregulating Bax expression via activation of the Nrf2 signaling pathway. CONCLUSION The findings of this study indicate that GD has the potential to serve as a viable alternative treatment for diabetic wounds. This potential arises from its ability to mitigate the negative effects of oxidative stress on angiogenesis, which is regulated by the Nrf2 signaling pathway. The results of our study offer valuable insights into the therapeutic efficacy of GD in the treatment of diabetic wounds, emphasizing the significance of directing interventions towards the Nrf2 signaling pathway to mitigate oxidative stress and facilitate the process of angiogenesis.
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Affiliation(s)
- Caimin Xu
- Department of Endocrinology and Metabolism, The Affiliated Hospital, Southwest Medical University, Luzhou, China; School of Nursing, Southwest Medical University, Luzhou, China; Metabolic Vascular Diseases Key Laboratory of Sichuan Province, Southwest Medical University
| | - Lixin Hu
- Department of Endocrinology and Metabolism, The Affiliated Hospital, Southwest Medical University, Luzhou, China; School of Nursing, Southwest Medical University, Luzhou, China
| | - Jing Zeng
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, China
| | - Anguo Wu
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, China
| | - Shilong Deng
- Department of Nursing, The Affiliated Hospital, Southwest Medical University, Luzhou, China; Wound Healing Basic Research and Clinical Application Key Laboratory, School of Nursing, Southwest Medical University, LuZhou, China
| | - Zijuan Zhao
- Department of Nursing, The Affiliated Hospital, Southwest Medical University, Luzhou, China; Wound Healing Basic Research and Clinical Application Key Laboratory, School of Nursing, Southwest Medical University, LuZhou, China
| | - Kang Geng
- Department of Endocrinology and Metabolism, The Affiliated Hospital, Southwest Medical University, Luzhou, China
| | - Jiesi Luo
- School of Basic Medicine Sciences, Southwest Medical University, Luzhou, China
| | - Long Wang
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, China
| | - Xiaogang Zhou
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, China
| | - Wei Huang
- Department of Endocrinology and Metabolism, The Affiliated Hospital, Southwest Medical University, Luzhou, China; Metabolic Vascular Diseases Key Laboratory of Sichuan Province, Southwest Medical University
| | - Yang Long
- Department of Endocrinology and Metabolism, The Affiliated Hospital, Southwest Medical University, Luzhou, China; Metabolic Vascular Diseases Key Laboratory of Sichuan Province, Southwest Medical University
| | - Jianying Song
- Department of Endocrinology and Metabolism, The Affiliated Hospital, Southwest Medical University, Luzhou, China; School of Nursing, Southwest Medical University, Luzhou, China
| | - Silin Zheng
- Department of Nursing, The Affiliated Hospital, Southwest Medical University, Luzhou, China
| | - Jianming Wu
- School of Basic Medicine Sciences, Southwest Medical University, Luzhou, China.
| | - Qi Chen
- Department of Endocrinology and Metabolism, The Affiliated Hospital, Southwest Medical University, Luzhou, China; School of Nursing, Southwest Medical University, Luzhou, China; Department of Nursing, The Affiliated Hospital, Southwest Medical University, Luzhou, China; Wound Healing Basic Research and Clinical Application Key Laboratory, School of Nursing, Southwest Medical University, LuZhou, China; Metabolic Vascular Diseases Key Laboratory of Sichuan Province, Southwest Medical University.
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4
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Wang J, Li M, Wang M, Yang J, Li D, Hao Y. MiR-181c-5p Regulates Lung Adenocarcinoma Progression via Targeting PRKN. Biochem Genet 2024; 62:1103-1114. [PMID: 37532837 DOI: 10.1007/s10528-023-10459-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Accepted: 07/14/2023] [Indexed: 08/04/2023]
Abstract
Accumulating evidence indicates that microRNAs (miRNAs) have a vital effect on lung adenocarcinoma. However, the contributions and possible mechanisms of miR-181c-5p to lung adenocarcinoma remain largely unclear. Our objective is to clarify the potential mechanism by which miR-181c-5p regulates lung adenocarcinoma progression. RT-qPCR was performed to determine the levels of miR-181c-5p in lung adenocarcinoma tissues and cells. CCK-8 and Transwell assays were conducted to evaluate the viability, migration, and invasion of H460 cells, respectively. The putative target association between miR-181c-5p and the Parkin gene (PRKN) was predicted using miRDB and confirmed by dual-luciferase reporter assay. MiR-181c-5p expression was found to be up-regulated in both lung adenocarcinoma tissues and cells. Suppression of miR-181c-5p resulted in the inhibition of viability, migration, and invasion in lung adenocarcinoma cells. PRKN level was negatively related to miR-181c-5p expression and mediated with the miR-181c-5p's functions on lung adenocarcinoma progression. MiR-181c-5p regulates lung adenocarcinoma progression via targeting PRKN, indicating miR-181c-5p is expected to be a diagnostic and predictive marker for lung adenocarcinoma, providing new insights into the development of treatment strategies for lung adenocarcinoma.
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Affiliation(s)
- Jing Wang
- Department of Oncology, The Second People's Hospital of Liaocheng, Linqing, 252600, Shandong Province, China
| | - Man Li
- Liaocheng Cancer Prevention and Treatment Hospital, Liaocheng, 252000, Shandong Province, China
| | - Meigui Wang
- Department of Obstetrics, Qingdao Central Hospital, No 127 Siliu South Road, Shibei District, Qingdao, 266013, Shandong, China
| | - Jing Yang
- Department of Radiotherapy, Qingdao Municipal Hospital, Qingdao, 266011, Shandong Province, China
| | - Deguang Li
- Department of Proctology, Rizhao City Central Hospital, Rizhao, 276800, Shandong Province, China
| | - Yunxia Hao
- Department of Oncology, Yantai Municipal Laiyang Central Hospital Affiliated to Weifang Medical College, Yantai, 265200, Shandong Province, China.
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5
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Liu H, Yao Q, Wang X, Xie H, Yang C, Gao H, Xie C. The research progress of crosstalk mechanism of autophagy and apoptosis in diabetic vascular endothelial injury. Biomed Pharmacother 2024; 170:116072. [PMID: 38147739 DOI: 10.1016/j.biopha.2023.116072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 12/08/2023] [Accepted: 12/21/2023] [Indexed: 12/28/2023] Open
Abstract
In recent years, the widespread prevalence of diabetes has become a major killer that threatens the health of people worldwide. Of particular concern is hyperglycemia-induced vascular endothelial injury, which is one of the factors that aggravate diabetic vascular disease. During the process of diabetic vascular endothelial injury, apoptosis is an important pathological manifestation and autophagy is a key regulatory mechanism. Autophagy and apoptosis interact with each other. Hence, the crosstalk mechanism between the two processes is an important means of regulating diabetic vascular endothelial injury. This article reviews the research progress in apoptosis in the context of diabetic vascular endothelial injury and discusses the crosstalk mechanism of autophagy and apoptosis and its role in this injury. The purpose is to guide the prevention and treatment of diabetic vascular endothelial injury in the future.
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Affiliation(s)
- Hanyu Liu
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 610075, PR China
| | - Qiyuan Yao
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 610075, PR China
| | - Xueru Wang
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 610075, PR China
| | - Hongyan Xie
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 610075, PR China; TCM Regulating Metabolic Diseases Key Laboratory of Sichuan Province, Chengdu, Sichuan 610075, PR China; Department of Endocrinology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 610075, PR China
| | - Chan Yang
- Division of Endocrinology and Metabolism, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, Sichuan 610041, PR China.
| | - Hong Gao
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 610075, PR China; TCM Regulating Metabolic Diseases Key Laboratory of Sichuan Province, Chengdu, Sichuan 610075, PR China; Department of Endocrinology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 610075, PR China.
| | - Chunguang Xie
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 610075, PR China; TCM Regulating Metabolic Diseases Key Laboratory of Sichuan Province, Chengdu, Sichuan 610075, PR China; Department of Endocrinology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 610075, PR China.
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Yang F, Chen D, Liu Y, Zhang X, Su Y, Zhang X, Yin Z, Wu J. Overexpression of MiR-181c-5p Attenuates Human Umbilical Vascular Endothelial Cell Injury in Deep Vein Thrombosis by Targeting FOS. Int Heart J 2023; 64:759-767. [PMID: 37460318 DOI: 10.1536/ihj.22-689] [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: 08/01/2023]
Abstract
Deep venous thrombosis (DVT) is the third most common cardiovascular disease. Its clinical therapeutic effect is unsatisfactory due to the high rate of postthrombotic syndrome. Several studies have demonstrated the involvement of miRNAs in DVT. Therefore, we identified differentially expressed miRNAs in patients with DVT and explored their effects and underlying mechanism on endothelial cell (EC) injury.Differentially expressed miRNAs were identified via microRNA sequencing and verified using real-time quantitative PCR. The biological function of miR-181c-5p in human umbilical vein endothelial cell (HUVEC) injury stimulated by oxidized low-density lipoprotein (ox-LDL) was investigated. The target gene of miR-181c-5p was analyzed using bioinformatics and verified via dual-luciferase reporter assay.miRNA sequencing showed that miR-181c-5p was downregulated in the peripheral blood of patients with DVT. Furthermore, miR-181c-5p had a high clinical diagnostic value for DVT by receiver operating characteristic curve analysis. An in vitro cell model of EC injury, miR-181c-5p, was repressed in ox-LDL-treated HUVECs. Enhancing miR-181c-5p expression could alleviate the inhibition cell viability, cell apoptosis, raising ROS and MDA production, the reducing SOD level, and the elevated levels of thrombosis-related factor, ET-1 and vWF induced by ox-LDL. Further analysis revealed that FBJ osteosarcoma oncogene (FOS) is a target of miR-181c-5p and could antagonize the protective role of miR-181c-5p in ox-LDL-induced HUVEC injury.Our research demonstrated that miR-181c-5p could attenuate ox-LDL-induced EC injury and thrombosis-related factor expression by negatively regulating FOS. These findings suggest that the miR-181c-5p/FOS axis is a promising therapeutic target for DVT.
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Affiliation(s)
- Fei Yang
- Department of Cardiovascular and Thoracic Surgery, The First People's Hospital of Changde City
| | - Dexiang Chen
- Department of Cardiovascular and Thoracic Surgery, The First People's Hospital of Changde City
| | - Yi Liu
- Department of Cardiovascular and Thoracic Surgery, The First People's Hospital of Changde City
| | - Xumiao Zhang
- Department of Cardiovascular and Thoracic Surgery, The First People's Hospital of Changde City
| | - Yang Su
- Department of Cardiovascular and Thoracic Surgery, The First People's Hospital of Changde City
| | - Xialing Zhang
- Department of Cardiovascular and Thoracic Surgery, The First People's Hospital of Changde City
| | - Zhiqiang Yin
- Department of Cardiovascular and Thoracic Surgery, The First People's Hospital of Changde City
| | - Jiming Wu
- Department of Cardiovascular and Thoracic Surgery, The First People's Hospital of Changde City
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7
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Jankauskas SS, Mone P, Avvisato R, Varzideh F, De Gennaro S, Salemme L, Macina G, Kansakar U, Cioppa A, Frullone S, Gambardella J, Di Mauro M, Tesorio T, Santulli G. miR-181c targets Parkin and SMAD7 in human cardiac fibroblasts: Validation of differential microRNA expression in patients with diabetes and heart failure with preserved ejection fraction. Mech Ageing Dev 2023; 212:111818. [PMID: 37116731 DOI: 10.1016/j.mad.2023.111818] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 04/15/2023] [Accepted: 04/19/2023] [Indexed: 04/30/2023]
Abstract
BACKGROUND Cardiac fibrosis represents a key feature in the pathophysiology of heart failure with preserved ejection fraction (HFpEF), a condition highly prevalent amongst geriatric patients, especially if diabetic. The microRNA miR-181c has been shown to be associated with the response to exercise training in HFpEF patients and has been also linked to diabetic cardiovascular complications. However, the underlying mechanisms have not been fully elucidated. OBJECTIVE To measure circulating miR-181c in elderly patients with HFpEF and DM and identify gene targets pathophysiologically relevant in HFpEF. METHODS We quantified circulating miR-181c in frail older adults with a confirmed diagnosis of HFpEF and diabetes, and, as control, we enrolled age-matched subjects without HFpEF and without diabetes. We validated in human cardiac fibroblasts the molecular mechanisms linking miR-181c to a pro-fibrotic response. RESULTS 51 frail patients were included (34 patients with diabetes and HFpEF and 17 age-matched controls. We observed that miR-181c was significantly upregulated (p<0.0001) in HFpEF patients vs controls. We confirmed in vitro that miR-181c is targeting PRKN and SMAD7. CONCLUSIONS We demonstrate that miR-181c levels are significantly increased in frail elderly adults with diabetes and HFpEF and that miR-181c targets PRKN and SMAD7 in human cardiac fibroblasts.
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Affiliation(s)
- Stanislovas S Jankauskas
- Department of Medicine, Einstein Institute for Aging Research, Wilf Family Cardiovascular Research Institute, Albert Einstein College of Medicine, New York, NY 10461, USA
| | - Pasquale Mone
- Department of Medicine, Einstein Institute for Aging Research, Wilf Family Cardiovascular Research Institute, Albert Einstein College of Medicine, New York, NY 10461, USA; ASL Avellino, Avellino, 83100, Italy
| | - Roberta Avvisato
- Department of Medicine, Einstein Institute for Aging Research, Wilf Family Cardiovascular Research Institute, Albert Einstein College of Medicine, New York, NY 10461, USA
| | - Fahimeh Varzideh
- Department of Medicine, Einstein Institute for Aging Research, Wilf Family Cardiovascular Research Institute, Albert Einstein College of Medicine, New York, NY 10461, USA
| | | | - Luigi Salemme
- Casa di Cura "Montevergine", Mercogliano (Avellino), 83013, Italy
| | | | - Urna Kansakar
- Department of Medicine, Einstein Institute for Aging Research, Wilf Family Cardiovascular Research Institute, Albert Einstein College of Medicine, New York, NY 10461, USA
| | - Angelo Cioppa
- Casa di Cura "Montevergine", Mercogliano (Avellino), 83013, Italy
| | | | - Jessica Gambardella
- Department of Molecular Pharmacology, Fleischer Institute for Diabetes and Metabolism (FIDAM), Einstein-Mount Sinai Diabetes Research Center (ES-DRC), Einstein Institute for Neuroimmunology and Inflammation (INI), Albert Einstein College of Medicine, New York, NY 10461, USA
| | | | - Tullio Tesorio
- Casa di Cura "Montevergine", Mercogliano (Avellino), 83013, Italy
| | - Gaetano Santulli
- Department of Medicine, Einstein Institute for Aging Research, Wilf Family Cardiovascular Research Institute, Albert Einstein College of Medicine, New York, NY 10461, USA; Department of Molecular Pharmacology, Fleischer Institute for Diabetes and Metabolism (FIDAM), Einstein-Mount Sinai Diabetes Research Center (ES-DRC), Einstein Institute for Neuroimmunology and Inflammation (INI), Albert Einstein College of Medicine, New York, NY 10461, USA.
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8
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Monteiro JP, Morine MJ, Ued FV, Kaput J. Identifying and Analyzing Topic Clusters in a Nutri-, Food-, and Diet-Proteomic Corpus Using Machine Reading. Nutrients 2023; 15:nu15020270. [PMID: 36678141 PMCID: PMC9863309 DOI: 10.3390/nu15020270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 12/27/2022] [Accepted: 12/30/2022] [Indexed: 01/06/2023] Open
Abstract
Nutrition affects the early stages of disease development, but the mechanisms remain poorly understood. High-throughput proteomic methods are being used to generate data and information on the effects of nutrients, foods, and diets on health and disease processes. In this report, a novel machine reading pipeline was used to identify all articles and abstracts on proteomics, diet, food, and nutrition in humans. The resulting proteomic corpus was further analyzed to produce seven clusters of "thematic" content defined as documents that have similar word content. Examples of publications from several of these clusters were then described in a similar way to a typical descriptive review.
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Affiliation(s)
- Jacqueline Pontes Monteiro
- Department of Pediatrics, Ribeirão Preto Medical School, University of São Paulo, Bandeirantes Avenue, 3900, Ribeirão Preto 14049-900, Brazil
- Correspondence:
| | | | - Fabio V. Ued
- Department of Pediatrics, Ribeirão Preto Medical School, University of São Paulo, Bandeirantes Avenue, 3900, Ribeirão Preto 14049-900, Brazil
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Szydełko J, Matyjaszek-Matuszek B. MicroRNAs as Biomarkers for Coronary Artery Disease Related to Type 2 Diabetes Mellitus-From Pathogenesis to Potential Clinical Application. Int J Mol Sci 2022; 24:ijms24010616. [PMID: 36614057 PMCID: PMC9820734 DOI: 10.3390/ijms24010616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 12/23/2022] [Accepted: 12/24/2022] [Indexed: 12/31/2022] Open
Abstract
Type 2 diabetes mellitus (T2DM) is a chronic metabolic disease with still growing incidence among adults and young people worldwide. Patients with T2DM are more susceptible to developing coronary artery disease (CAD) than non-diabetic individuals. The currently used diagnostic methods do not ensure the detection of CAD at an early stage. Thus, extensive research on non-invasive, blood-based biomarkers is necessary to avoid life-threatening events. MicroRNAs (miRNAs) are small, endogenous, non-coding RNAs that are stable in human body fluids and easily detectable. A number of reports have highlighted that the aberrant expression of miRNAs may impair the diversity of signaling pathways underlying the pathophysiology of atherosclerosis, which is a key player linking T2DM with CAD. The preclinical evidence suggests the atheroprotective and atherogenic influence of miRNAs on every step of T2DM-induced atherogenesis, including endothelial dysfunction, endothelial to mesenchymal transition, macrophage activation, vascular smooth muscle cells proliferation/migration, platelet hyperactivity, and calcification. Among the 122 analyzed miRNAs, 14 top miRNAs appear to be the most consistently dysregulated in T2DM and CAD, whereas 10 miRNAs are altered in T2DM, CAD, and T2DM-CAD patients. This up-to-date overview aims to discuss the role of miRNAs in the development of diabetic CAD, emphasizing their potential clinical usefulness as novel, non-invasive biomarkers and therapeutic targets for T2DM individuals with a predisposition to undergo CAD.
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Li T, Yu X, Zhu X, Wen Y, Zhu M, Cai W, Hou B, Xu F, Qiu L. Vaccarin alleviates endothelial inflammatory injury in diabetes by mediating miR-570-3p/HDAC1 pathway. Front Pharmacol 2022; 13:956247. [PMID: 36120375 PMCID: PMC9475173 DOI: 10.3389/fphar.2022.956247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Accepted: 08/11/2022] [Indexed: 11/13/2022] Open
Abstract
Vaccarin is a flavonoid glycoside, which has a variety of pharmacological properties and plays a protective role in diabetes and its complications, but its mechanism is unclear. In this study, we aim to investigate whether histone deacetylase 1(HDAC1), a gene that plays a pivotal role in regulating eukaryotic gene expression, is the target of miR-570-3p in diabetic vascular endothelium, and the potential molecular mechanism of vaccarin regulating endothelial inflammatory injury through miR-570-3p/HDAC1 pathway. The HFD and streptozotocin (STZ) induced diabetes mice model, a classical type 2 diabetic model, was established. The aorta of diabetic mice displayed a decrease of miR-570-3p, the elevation of HDAC1, and inflammatory injury, which were alleviated by vaccarin. Next, we employed the role of vaccarin in regulating endothelial cells miR-570-3p and HDAC1 under hyperglycemia conditions in vitro. We discovered that overexpression of HDAC1 counteracted the inhibitory effect of vaccarin on inflammatory injury in human umbilical vein endothelial cells (HUVECs). Manipulation of miRNA levels in HUVECs was achieved by transfecting cells with miR-570-3p mimic and inhibitor. Overexpression of miR-570-3p could decrease the expression of downstream components of HDAC1 including TNF-α, IL-1β, and malondialdehyde, while increasing GSH-Px activity in HUVECs under hyperglycemic conditions. Nevertheless, such phenomenon was completely reversed by miR-570-3p inhibitor, and administration of miR-570-3p inhibitor could block the inhibition of vaccarin on HDAC1 and inflammatory injury. Luciferase reporter assay confirmed the 3′- UTR of the HDAC1 gene was a direct target of miR-570-3p. In summary, our findings suggest that vaccarin alleviates endothelial inflammatory injury in diabetes by mediating miR-570-3p/HDAC1 pathway. Our study provides a new pathogenic link between deregulation of miRNA expression in the vascular endothelium of diabetes and inflammatory injury and provides new ideas, insights, and choices for the scope of application and medicinal value of vaccarin and some potential biomarkers or targets in diabetic endothelial dysfunction and vascular complications.
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Affiliation(s)
- Taiyue Li
- Wuxi Medical School, Jiangnan University, Wuxi, Jiangsu, China
| | - Xiaoyi Yu
- Wuxi Medical School, Jiangnan University, Wuxi, Jiangsu, China
| | - Xuerui Zhu
- School of Life Science and Health Engineering, Jiangnan University, Wuxi, Jiangsu, China
| | - Yuanyuan Wen
- Wuxi Medical School, Jiangnan University, Wuxi, Jiangsu, China
| | - Meizhen Zhu
- Wuxi Medical School, Jiangnan University, Wuxi, Jiangsu, China
| | - Weiwei Cai
- Wuxi Medical School, Jiangnan University, Wuxi, Jiangsu, China
| | - Bao Hou
- Wuxi Medical School, Jiangnan University, Wuxi, Jiangsu, China
| | - Fei Xu
- Wuxi Medical School, Jiangnan University, Wuxi, Jiangsu, China
- *Correspondence: Fei Xu, ; Liying Qiu,
| | - Liying Qiu
- Wuxi Medical School, Jiangnan University, Wuxi, Jiangsu, China
- *Correspondence: Fei Xu, ; Liying Qiu,
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Chen X, Shi C, Wang Y, Yu H, Zhang Y, Zhang J, Li P, Gao J. The mechanisms of glycolipid metabolism disorder on vascular injury in type 2 diabetes. Front Physiol 2022; 13:952445. [PMID: 36117707 PMCID: PMC9473659 DOI: 10.3389/fphys.2022.952445] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Accepted: 08/12/2022] [Indexed: 11/13/2022] Open
Abstract
Patients with diabetes have severe vascular complications, such as diabetic nephropathy, diabetic retinopathy, cardiovascular disease, and neuropathy. Devastating vascular complications lead to increased mortality, blindness, kidney failure, and decreased overall quality of life in people with type 2 diabetes (T2D). Glycolipid metabolism disorder plays a vital role in the vascular complications of T2D. However, the specific mechanism of action remains to be elucidated. In T2D patients, vascular damage begins to develop before insulin resistance and clinical diagnosis. Endothelial dysregulation is a significant cause of vascular complications and the early event of vascular injury. Hyperglycemia and hyperlipidemia can trigger inflammation and oxidative stress, which impair endothelial function. Furthermore, during the pathogenesis of T2D, epigenetic modifications are aberrant and activate various biological processes, resulting in endothelial dysregulation. In the present review, we provide an overview and discussion of the roles of hyperglycemia- and hyperlipidemia-induced endothelial dysfunction, inflammatory response, oxidative stress, and epigenetic modification in the pathogenesis of T2D. Understanding the connections of glucotoxicity and lipotoxicity with vascular injury may reveal a novel potential therapeutic target for diabetic vascular complications.
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Affiliation(s)
- Xiatian Chen
- Center for Molecular Genetics, Institute of Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
- School of Basic Medicine, Qingdao University, Qingdao, China
| | | | - Yin Wang
- Center for Molecular Genetics, Institute of Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
| | - Hua Yu
- The Affiliated Cardiovascular Hospital of Qingdao University, Qingdao, China
| | - Yu Zhang
- Center for Molecular Genetics, Institute of Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
| | - Jiaxuan Zhang
- Center for Molecular Genetics, Institute of Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
| | - Peifeng Li
- Center for Molecular Genetics, Institute of Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
- *Correspondence: Peifeng Li, ; Jinning Gao,
| | - Jinning Gao
- Center for Molecular Genetics, Institute of Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
- *Correspondence: Peifeng Li, ; Jinning Gao,
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12
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Heilmeier U, Hackl M, Schroeder F, Torabi S, Kapoor P, Vierlinger K, Eiriksdottir G, Gudmundsson EF, Harris TB, Gudnason V, Link TM, Grillari J, Schwartz AV. Circulating serum microRNAs including senescent miR-31-5p are associated with incident fragility fractures in older postmenopausal women with type 2 diabetes mellitus. Bone 2022; 158:116308. [PMID: 35066213 DOI: 10.1016/j.bone.2021.116308] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 12/06/2021] [Accepted: 12/20/2021] [Indexed: 12/15/2022]
Abstract
Fragility fractures are an important hallmark of aging and an increasingly recognized complication of Type 2 diabetes (T2D). T2D individuals have been found to exhibit an increased fracture risk despite elevated bone mineral density (BMD) by dual x-ray absorptiometry (DXA). However, BMD and FRAX-scores tend to underestimate fracture risk in T2D. New, reliable biomarkers are therefore needed. MicroRNAs (miRNAs) are secreted into the circulation from cells of various tissues proportional to local disease severity. Serum miRNA-classifiers were recently found to discriminate T2D women with and without prevalent fragility fractures with high specificity and sensitivity (AUC > 0.90). However, the association of circulating miRNAs with incident fractures in T2D has not been examined yet. In 168 T2D postmenopausal women in the AGES-Reykjavik cohort, miRNAs were extracted from baseline serum and a panel of 10 circulating miRNAs known to be involved in diabetic bone disease and aging was quantified by qPCR and Ct-values extracted. Unadjusted and adjusted Cox proportional hazard models assessed the associations between serum miRNAs and incident fragility fracture. Additionally, Receiver operating curve (ROC) analyses were performed. Of the included 168 T2D postmenopausal women who were on average 77.2 ± 5.6 years old, 70 experienced at least one incident fragility fracture during the mean follow-up of 5.8 ± 2.7 years. We found that 3 serum miRNAs were significantly associated with incident diabetic fragility fracture: while low expression of miR-19b-1-5p was associated with significantly lower risk of incident fragility fracture (HR 0.84 (95% CI: 0.71-0.99, p = 0.0323)), low expression of miR-203a and miR-31-5p was each significantly associated with a higher risk of incident fragility fracture per unit increase in Ct-value (miR-203a: HR 1.29 (95% CI: 1.12-1.49), p = 0.0004, miR-31-5p HR 1.27 (95% CI: 1.06-1.52), p = 0.009). Hazard ratios of the latter two miRNAs remained significant after adjustments for age, body mass index (BMI), areal bone mineral density (aBMD), clinical FRAX or FRAXaBMD. Women with miR-203a and miR-31-5p serum levels in the lowest expression quartiles exhibited a 2.4-3.4-fold larger fracture risk than women with miR-31-5p and miR-203a serum expressions in the highest expression quartile (0.002 ≤ p ≤ 0.039). Women with both miR-203a and miR-31-5p serum levels below the median had a significantly increased fracture risk (Unadjusted HR 3.26 (95% CI: 1.57-6.78, p = 0.001) compared to those with both expression levels above the median, stable to adjustments. We next built a diabetic fragility signature consisting of the 3 miRNAs that showed the largest associations with incident fracture (miR-203a, miR-31-5p, miR-19b-1-5p). This 3-miRNA signature showed with an AUC of 0.722 comparable diagnostic accuracy in identifying incident fractures to any of the clinical parameters such as aBMD, Clinical FRAX or FRAXaBMD alone. When the 3 miRNAs were combined with aBMD, this combined 4-feature signature performed with an AUC of 0.756 (95% CI: 0.680, 0.823) significantly better than aBMD alone (AUC 0.666, 95% CI: 0.585, 0.741) (p = 0.009). Our data indicate that specific serum microRNAs including senescent miR-31-5p are associated with incident fragility fracture in older diabetic women and can significantly improve fracture risk prediction in diabetics when combined with aBMD measurements of the femoral neck.
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Affiliation(s)
- Ursula Heilmeier
- Musculoskeletal Quantitative Imaging Research Group, University of California San Francisco, San Francisco, CA, USA; Department of Rheumatology and Clinical Immunology, Faculty of Medicine, University of Freiburg, Freiburg, Germany.
| | | | - Fabian Schroeder
- Department of Molecular Diagnostics, Austrian Institute of Technology, AIT, Vienna, Austria
| | - Soheyla Torabi
- Musculoskeletal Quantitative Imaging Research Group, University of California San Francisco, San Francisco, CA, USA
| | - Puneet Kapoor
- Musculoskeletal Quantitative Imaging Research Group, University of California San Francisco, San Francisco, CA, USA
| | - Klemens Vierlinger
- Department of Molecular Diagnostics, Austrian Institute of Technology, AIT, Vienna, Austria
| | | | | | - Tamara B Harris
- Laboratory of Epidemiology and Population Sciences, National Institute on Aging, Bethesda, USA
| | - Vilmundur Gudnason
- The Icelandic Heart Association, Kopavogur, Iceland; Faculty of Medicine, University of Iceland, Reykjavik, Iceland
| | - Thomas M Link
- Musculoskeletal Quantitative Imaging Research Group, University of California San Francisco, San Francisco, CA, USA
| | - Johannes Grillari
- Department of Biotechnology, University of Natural Resources and Life Sciences, Vienna, Austria; Austrian Cluster for Tissue Regeneration, Vienna, Austria; Christian Doppler Laboratory of Biotechnology of Skin Aging, Vienna, Austria; Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Vienna, Austria
| | - Ann V Schwartz
- Department of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, CA, USA
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Solly EL, Psaltis PJ, Bursill CA, Tan JTM. The Role of miR-181c in Mechanisms of Diabetes-Impaired Angiogenesis: An Emerging Therapeutic Target for Diabetic Vascular Complications. Front Pharmacol 2021; 12:718679. [PMID: 34483928 PMCID: PMC8414254 DOI: 10.3389/fphar.2021.718679] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 08/06/2021] [Indexed: 12/13/2022] Open
Abstract
Diabetes mellitus is estimated to affect up to 700 million people by the year 2045, contributing to an immense health and economic burden. People living with diabetes have a higher risk of developing numerous debilitating vascular complications, leading to an increased need for medical care, a reduced quality of life and increased risk of early death. Current treatments are not satisfactory for many patients who suffer from impaired angiogenesis in response to ischaemia, increasing their risk of ischaemic cardiovascular conditions. These vascular pathologies are characterised by endothelial dysfunction and abnormal angiogenesis, amongst a host of impaired signaling pathways. Therapeutic stimulation of angiogenesis holds promise for the treatment of diabetic vascular complications that stem from impaired ischaemic responses. However, despite significant effort and research, there are no established therapies that directly stimulate angiogenesis to improve ischaemic complications such as ischaemic heart disease and peripheral artery disease, highlighting the immense unmet need. However, despite significant effort and research, there are no established therapies that directly stimulate angiogenesis in a clinical setting, highlighting the immense unmet need. MicroRNAs (miRNAs) are emerging as powerful targets for multifaceted diseases including diabetes and cardiovascular disease. This review highlights the potential role of microRNAs as therapeutic targets for rescuing diabetes-impaired angiogenesis, with a specific focus on miR-181c, which we have previously identified as an important angiogenic regulator. Here we summarise the pathways currently known to be regulated by miR-181c, which include the classical angiogenesis pathways that are dysregulated in diabetes, mitochondrial function and axonal guidance, and describe how these relate both directly and indirectly to angiogenesis. The pleiotropic actions of miR-181c across multiple key angiogenic signaling pathways and critical cellular processes highlight its therapeutic potential as a novel target for treating diabetic vascular complications.
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Affiliation(s)
- Emma L Solly
- Vascular Research Centre, Lifelong Health Theme, South Australian Health and Medical Research Institute, Adelaide, SA, Australia.,Adelaide Medical School, The University of Adelaide, Adelaide, SA, Australia
| | - Peter J Psaltis
- Vascular Research Centre, Lifelong Health Theme, South Australian Health and Medical Research Institute, Adelaide, SA, Australia.,Adelaide Medical School, The University of Adelaide, Adelaide, SA, Australia
| | - Christina A Bursill
- Vascular Research Centre, Lifelong Health Theme, South Australian Health and Medical Research Institute, Adelaide, SA, Australia.,Adelaide Medical School, The University of Adelaide, Adelaide, SA, Australia.,ARC Centre of Excellence for Nanoscale BioPhotonics, The University of Adelaide, Adelaide, SA, Australia
| | - Joanne T M Tan
- Vascular Research Centre, Lifelong Health Theme, South Australian Health and Medical Research Institute, Adelaide, SA, Australia.,Adelaide Medical School, The University of Adelaide, Adelaide, SA, Australia
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Wu J, Zhang G, Xiong H, Zhang Y, Ding G, Ge J. miR-181c-5p mediates apoptosis of vascular endothelial cells induced by hyperoxemia via ceRNA crosstalk. Sci Rep 2021; 11:16582. [PMID: 34400675 PMCID: PMC8368219 DOI: 10.1038/s41598-021-95712-1] [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: 04/06/2021] [Accepted: 07/27/2021] [Indexed: 02/07/2023] Open
Abstract
Oxygen therapy has been widely used in clinical practice, especially in anesthesia and emergency medicine. However, the risks of hyperoxemia caused by excessive O2 supply have not been sufficiently appreciated. Because nasal inhalation is mostly used for oxygen therapy, the pulmonary capillaries are often the first to be damaged by hyperoxia, causing many serious consequences. Nevertheless, the molecular mechanism by which hyperoxia injures pulmonary capillary endothelial cells (LMECs) has not been fully elucidated. Therefore, we systematically investigated these issues using next-generation sequencing and functional research techniques by focusing on non-coding RNAs. Our results showed that hyperoxia significantly induced apoptosis and profoundly affected the transcriptome profiles of LMECs. Hyperoxia significantly up-regulated miR-181c-5p expression, while down-regulated the expressions of NCAPG and lncRNA-DLEU2 in LMECs. Moreover, LncRNA-DLEU2 could bind complementarily to miR-181c-5p and acted as a miRNA sponge to block the inhibitory effect of miR-181c-5p on its target gene NCAPG. The down-regulation of lncRNA-DLEU2 induced by hyperoxia abrogated its inhibition of miR-181c-5p function, which together with the hyperoxia-induced upregulation of miR-181c-5p, all these significantly decreased the expression of NCAPG, resulting in apoptosis of LMECs. Our results demonstrated a ceRNA network consisting of lncRNA-DLEU2, miR-181c-5p and NCAPG, which played an important role in hyperoxia-induced apoptosis of vascular endothelial injury. Our findings will contribute to the full understanding of the harmful effects of hyperoxia and to find ways for effectively mitigating its deleterious effects.
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Affiliation(s)
- Jizhi Wu
- Department of Anesthesiology, Shandong Second Provincial General Hospital, Jinan, Shandong People’s Republic of China
| | - Guangqi Zhang
- Department of Anesthesiology, Jinan Second People’s Hospital, No. 148 Jingyi Road, Jinan, 250021 Shandong People’s Republic of China
| | - Hui Xiong
- grid.440144.10000 0004 1803 8437Department of Pediatric Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong People’s Republic of China
| | - Yuguang Zhang
- Eye Reseach Institute, Jinan Eye Hospital, Jinan, Shandong People’s Republic of China
| | - Gang Ding
- Ophthalmology, Jinan Eye Hospital, Jinan, Shandong People’s Republic of China
| | - Junfeng Ge
- Department of Anesthesiology, Jinan Second People’s Hospital, No. 148 Jingyi Road, Jinan, 250021 Shandong People’s Republic of China
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15
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Morrison KR, Solly EL, Shemesh T, Psaltis PJ, Nicholls SJ, Brown A, Bursill CA, Tan JTM. Elevated HDL-bound miR-181c-5p level is associated with diabetic vascular complications in Australian Aboriginal people. Diabetologia 2021; 64:1402-1411. [PMID: 33651121 DOI: 10.1007/s00125-021-05414-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Accepted: 01/05/2021] [Indexed: 12/17/2022]
Abstract
AIMS/HYPOTHESIS Diabetes is a major burden on Australia's Indigenous population, with high rates of disease and vascular complications. Diabetic vascular complications are associated with impaired ischaemia-driven angiogenesis. MicroRNAs (miRNAs) are key players in the regulation of angiogenesis. HDL-cholesterol (HDL-c) levels are inversely associated with the risk of developing diabetic complications and HDL can carry miRNAs. HDL-miRNA profiles differ in disease states and may present as biomarkers with the capacity to act as bioactive signalling molecules. Recent studies have demonstrated that HDL becomes dysfunctional in a diabetic environment, losing its vasculo-protective effects and becoming more pro-atherogenic. We sought to determine whether HDL-associated miRNA profiles and HDL functionality were predictive of the severity of diabetic vascular complications in Australia's Indigenous population. METHODS HDL was isolated from plasma samples from Indigenous participants without diabetes ('Healthy'), with type 2 diabetes mellitus ('T2DM') and with diabetes-associated macrovascular complications (specifically peripheral artery disease, 'T2DM+Comp'). To assess HDL angiogenic capacity, human coronary artery endothelial cells were treated with PBS, reconstituted HDL (rHDL, positive control) or isolated HDL and then exposed to high-glucose (25 mmol/l) conditions. The expression levels of two anti-angiogenic miRNAs (miR-181c-5p and miR-223-3p) and one pro-angiogenic miRNA (miR-27b-3p) were measured in the HDL fraction, plasma and treated human coronary artery endothelial cells by quantitative real-time PCR. In vitro endothelial tubule formation was assessed using the Matrigel tubulogenesis assay. RESULTS Strikingly, we found that the levels of the anti-angiogenic miRNA miR-181c-5p were 14-fold higher (1454 ± 1346%) in the HDL from Aboriginal people with diabetic complications compared with both the Healthy (100 ± 121%, p < 0.05) and T2DM (82 ± 77%, p < 0.05) groups. Interestingly, we observed a positive correlation between HDL-associated miR-181c-5p levels and disease severity (p = 0.0020). Under high-glucose conditions, cells treated with rHDL, Healthy HDL and T2DM HDL had increased numbers of tubules (rHDL: 136 ± 8%, p < 0.01; Healthy HDL: 128 ± 6%, p < 0.01; T2DM HDL: 124 ± 5%, p < 0.05) and branch points (rHDL: 138 ± 8%, p < 0.001; Healthy HDL: 128 ± 6%, p < 0.01; T2DM HDL: 127 ± 5%, p < 0.01) concomitant with elevations in mRNA levels of the key hypoxia angiogenic transcription factor HIF1A (rHDL: 140 ± 10%, p < 0.01; Healthy HDL: 136 ± 8%, p < 0.01; T2DM HDL: 133 ± 9%, p < 0.05). However, this increase in angiogenic capacity was not observed in cells treated with T2DM + Comp HDL (tubule numbers: 113 ± 6%, p = 0.32; branch points: 113 ± 5%, p = 0.28; HIF1A: 117 ± 6%, p = 0.43), which could be attributed to the increase in cellular miR-181c-5p levels (T2DM + Comp HDL: 136 ± 7% vs PBS: 100 ± 9%, p < 0.05). CONCLUSIONS/INTERPRETATION In conclusion, HDL from Aboriginal people with diabetic complications had reduced angiogenic capacity. This impairment is associated with an increase in the expression of anti-angiogenic miR-181c-5p. These findings provide the rationale for a new way to better inform clinical diagnosis of disease severity with the potential to incorporate targeted, personalised HDL-miRNA intervention therapies to prevent further development of, or to reverse, diabetic vascular complications in Australian Aboriginal people.
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Affiliation(s)
- Kaitlin R Morrison
- South Australian Health and Medical Research Institute, Adelaide, SA, Australia
- College of Medicine and Public Health, Flinders University, Adelaide, SA, Australia
| | - Emma L Solly
- South Australian Health and Medical Research Institute, Adelaide, SA, Australia
- Adelaide Medical School, University of Adelaide, Adelaide, SA, Australia
| | - Tomer Shemesh
- South Australian Health and Medical Research Institute, Adelaide, SA, Australia
| | - Peter J Psaltis
- South Australian Health and Medical Research Institute, Adelaide, SA, Australia
- Adelaide Medical School, University of Adelaide, Adelaide, SA, Australia
| | - Stephen J Nicholls
- Monash Cardiovascular Research Centre, Victorian Heart Institute, Monash University, Melbourne, VIC, Australia
| | - Alex Brown
- South Australian Health and Medical Research Institute, Adelaide, SA, Australia
- College of Medicine and Public Health, Flinders University, Adelaide, SA, Australia
- Adelaide Medical School, University of Adelaide, Adelaide, SA, Australia
| | - Christina A Bursill
- South Australian Health and Medical Research Institute, Adelaide, SA, Australia
- Adelaide Medical School, University of Adelaide, Adelaide, SA, Australia
| | - Joanne T M Tan
- South Australian Health and Medical Research Institute, Adelaide, SA, Australia.
- Adelaide Medical School, University of Adelaide, Adelaide, SA, Australia.
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Li M, Hu J, Peng Y, Li J, Ren R. CircPTK2-miR-181c-5p-HMGB1: a new regulatory pathway for microglia activation and hippocampal neuronal apoptosis induced by sepsis. Mol Med 2021; 27:45. [PMID: 33952191 PMCID: PMC8101146 DOI: 10.1186/s10020-021-00305-3] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 04/22/2021] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND Circular RNA hsa_circ_0008305 (circPTK2), miR-181c-5p and High mobility group box-1 (HMGB1) had a targeted regulatory relationship through bioinformatics analysis. This study explained the effects of these genes in microglia and sepsis mice. METHODS Lipopolysaccharide (LPS) or Cecal Ligation and Puncture (CLP) was used to induce inflammation cell model or sepsis mouse model, as needed. Gene levels were measured by enzyme linked immunosorbent assay (ELISA), quantitative real-time PCR or Western blot, as required. Apoptosis was detected by TUNEL assay, and RNase R was used to test the stability of circPTK2. Targeting relationships between genes were analyzed using bioinformatics analysis and dual luciferase assay. Morris water maze test and mitochondrial membrane potential (MMP) detection were conducted to analyze the effects of genes on cognitive dysfunction of mice. RESULTS Lipopolysaccharide induction triggered the release of pro-inflammatory cytokines, the upregulation of HMGB1 and circPTK2, and the downregulation of miR-181c-5p in microglia. Overexpression of HMGB1 enhanced the effect of LPS, while silencing HMGB1 partially counteracted the effect of LPS. Moreover, miR-181c-5p was a target of circPTK2 and bound to HMGB1. MiR-181c-5p mimic partially reversed the functions of LPS and HMGB1 overexpression, reduced the levels of TNF-α, IL-1β, and HMGB1, and inhibited apoptosis. CircPTK2 knockdown had the same effect as miR-181c-5p up-regulation. In vivo, sicircPTK2 improved cognitive function, restored MMP level, inhibited apoptosis, reduced the levels of inflammatory factors and apoptotic factors, and increased the survival rate of CLP-induced mice. CONCLUSION Our research reveals that circPTK2 regulates microglia activation and hippocampal neuronal apoptosis induced by sepsis via miR-181c-5p-HMGB1 signaling.
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Affiliation(s)
- Min Li
- Neuroscience Intensive Care Unit, The Second Affiliated Hospital of Zhejiang University School of Medicine, No. 88, Jiefang Road, Hangzhou, 310009, Zhejiang Province, China.
| | - Junwen Hu
- Department of Neurosurgery, The Second Affiliated Hospital of Zhejiang University School of Medicine, No. 88, Jiefang Road, Hangzhou, 310009, Zhejiang Province, China
| | - Yucong Peng
- Department of Neurosurgery, The Second Affiliated Hospital of Zhejiang University School of Medicine, No. 88, Jiefang Road, Hangzhou, 310009, Zhejiang Province, China
| | - Jingbo Li
- Neuroscience Intensive Care Unit, The Second Affiliated Hospital of Zhejiang University School of Medicine, No. 88, Jiefang Road, Hangzhou, 310009, Zhejiang Province, China
| | - Reng Ren
- Neuroscience Intensive Care Unit, The Second Affiliated Hospital of Zhejiang University School of Medicine, No. 88, Jiefang Road, Hangzhou, 310009, Zhejiang Province, China
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Fazzalari A, Basadonna G, Kucukural A, Tanriverdi K, Koupenova M, Pozzi N, Kakuturu J, Friedrich AKU, Korstanje R, Fowler N, Belant JL, Beyer DE, Brooks MB, Dickson EW, Blackwood M, Mueller C, Palesty JA, Freedman JE, Cahan MA. A Translational Model for Venous Thromboembolism: MicroRNA Expression in Hibernating Black Bears. J Surg Res 2021; 257:203-212. [PMID: 32858321 PMCID: PMC11026106 DOI: 10.1016/j.jss.2020.06.027] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 05/17/2020] [Accepted: 06/16/2020] [Indexed: 01/02/2023]
Abstract
BACKGROUND Hibernating American black bears have significantly different clotting parameters than their summer active counterparts, affording them protection against venous thromboembolism during prolonged periods of immobility. We sought to evaluate if significant differences exist between the expression of microRNAs in the plasma of hibernating black bears compared with their summer active counterparts, potentially contributing to differences in hemostasis during hibernation. MATERIALS AND METHODS MicroRNA sequencing was assessed in plasma from 21 American black bears in summer active (n = 11) and hibernating states (n = 10), and microRNA signatures during hibernating and active state were established using both bear and human genome. MicroRNA targets were predicted using messenger RNA (mRNA) transcripts from black bear kidney cells. In vitro studies were performed to confirm the relationship between identified microRNAs and mRNA expression, using artificial microRNA and human liver cells. RESULTS Using the bear genome, we identified 15 microRNAs differentially expressed in the plasma of hibernating black bears. Of these microRNAs, three were significantly downregulated (miR-141-3p, miR-200a-3p, and miR-200c-3p), were predicted to target SERPINC1, the gene for antithrombin, and demonstrated regulatory control of the gene mRNA expression in cell studies. CONCLUSIONS Our findings suggest that the hibernating black bears' ability to maintain hemostasis and achieve protection from venous thromboembolism during prolonged periods of immobility may be due to changes in microRNA signatures and possible upregulation of antithrombin expression.
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Affiliation(s)
- Amanda Fazzalari
- Department of Surgery, University of Massachusetts Medical School, Worcester, Massachusetts; The Stanley J. Dudrick Department of Surgery, Saint Mary's Hospital, Waterbury, Connecticut
| | - Giacomo Basadonna
- Department of Surgery, University of Massachusetts Medical School, Worcester, Massachusetts
| | - Alper Kucukural
- Bioinformatics Core, University of Massachusetts Medical School, Worcester, Massachusetts; Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, Massachusetts
| | - Kahraman Tanriverdi
- Division of Cardiovascular Medicine, Department of Medicine, University of Massachusetts Medical School, Worcester, Massachusetts
| | - Milka Koupenova
- Division of Cardiovascular Medicine, Department of Medicine, University of Massachusetts Medical School, Worcester, Massachusetts
| | - Natalie Pozzi
- The Stanley J. Dudrick Department of Surgery, Saint Mary's Hospital, Waterbury, Connecticut
| | - Jahnavi Kakuturu
- The Stanley J. Dudrick Department of Surgery, Saint Mary's Hospital, Waterbury, Connecticut
| | | | - Ron Korstanje
- The Korstanje Lab, The Jackson Laboratory, Bar Harbor, Maine
| | - Nicholas Fowler
- Camp Fire Program in Wildlife Conservation, State University of New York College of Environmental Science and Forestry, Syracuse, New York
| | - Jerrold L Belant
- Camp Fire Program in Wildlife Conservation, State University of New York College of Environmental Science and Forestry, Syracuse, New York
| | - Dean E Beyer
- Department of Fisheries and Wildlife, College of Agriculture & Natural Resources, Michigan State University, East Lansing, Michigan; Michigan Department of Natural Resources, Marquette, Michigan
| | - Marjory B Brooks
- Comparative Coagulation Section, Cornell University Animal Health Diagnostic Center, Ithaca, New York
| | - Eric W Dickson
- Department of Emergency Medicine, University of Massachusetts Medical School, Worcester, Massachusetts
| | - Meghan Blackwood
- Mueller Lab for Gene Therapy, Horae Gene Therapy Center, University of Massachusetts Medical School, Worcester, Massachusetts
| | - Chris Mueller
- Mueller Lab for Gene Therapy, Horae Gene Therapy Center, University of Massachusetts Medical School, Worcester, Massachusetts
| | - J Alexander Palesty
- The Stanley J. Dudrick Department of Surgery, Saint Mary's Hospital, Waterbury, Connecticut
| | - Jane E Freedman
- Division of Cardiovascular Medicine, Department of Medicine, University of Massachusetts Medical School, Worcester, Massachusetts
| | - Mitchell A Cahan
- Department of Surgery, University of Massachusetts Medical School, Worcester, Massachusetts.
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Mediterranean diet and endothelial function in patients with coronary heart disease: An analysis of the CORDIOPREV randomized controlled trial. PLoS Med 2020; 17:e1003282. [PMID: 32903262 PMCID: PMC7480872 DOI: 10.1371/journal.pmed.1003282] [Citation(s) in RCA: 75] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Accepted: 08/07/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Endothelial dysfunction is a crucial step in atherosclerosis development, and its severity is determinant for the risk of cardiovascular recurrence. Diet may be an effective strategy to protect the endothelium, although there is no consensus about the best dietary model. The CORonary Diet Intervention with Olive oil and cardiovascular PREVention (CORDIOPREV) study is an ongoing prospective, randomized, single-blind, controlled trial in 1,002 coronary heart disease (CHD) patients, whose primary objective is to compare the effect of 2 healthy dietary patterns (low-fat versus Mediterranean diet) on the incidence of cardiovascular events. Here, we report the results of one secondary outcome of the CORDIOPREV study: to evaluate the effect of these diets on endothelial function, assessed by flow-mediated dilation (FMD) of the brachial artery. METHODS AND FINDINGS From the total participants taking part in the CORDIOPREV study, 805 completed endothelial function study at baseline and were randomized to follow a Mediterranean diet (35% fat, 22% monounsaturated fatty acids [MUFAs], and <50% carbohydrates) or a low-fat diet (28% fat, 12% MUFAs, and >55% carbohydrates), with endothelial function measurement repeated after 1 year. As secondary objectives and to explore different underlying mechanisms in the modulation of endothelial function, we quantified endothelial microparticles (EMPs) and endothelial progenitor cells (EPCs) and evaluated, in 24 preselected patients, in vitro cellular processes related to endothelial damage (reactive oxygen species, apoptosis, and senescence) and endothelial repair (cell proliferation and angiogenesis), as well as other modulators (micro-RNAs [miRNAs] and proteins). Patients who followed the Mediterranean diet had higher FMD (3.83%; 95% confidence interval [CI]: 2.91-4.23) compared with those in the low-fat diet (1.16%; 95% CI: 0.80 to 1.98) with a difference between diets of 2.63% (95% CI: 1.89-3.40, p = 0.011), even in those patients with severe endothelial dysfunction. We observed higher EPC levels (group difference: 1.64%; 95% CI: 0.79-2.13, p = 0.028) and lower EMPs (group difference: -755 EMPs/μl; 95% CI: -1,010 to -567, p = 0.015) after the Mediterranean diet compared with the low-fat diet in all patients. We also observed lower intracellular reactive oxygen species (ROS) production (group difference: 11.1; 95% CI: 2.5 to 19.6, p = 0.010), cellular apoptosis (group difference: -20.2; 95% CI: -26.7 to -5.11, p = 0.013) and senescence (18.0; 95% CI: 3.57 to 25.1, p = 0.031), and higher cellular proliferation (group difference: 11.3; 95% CI: 4.51 to 13.5, p = 0.011) and angiogenesis (total master segments length, group difference: 549; 95% CI: 110 to 670, p = 0.022) after the Mediterranean diet than the low-fat diet. Each dietary intervention was associated with distinct changes in the epigenetic and proteomic factors that modulate biological process associated with endothelial dysfunction. The evaluation of endothelial function is a substudy of the CORDIOPREV study. As in any substudy, these results should be treated with caution, such as the potential for false positives because of the exploratory nature of the analyses. CONCLUSIONS Our results suggest that the Mediterranean diet better modulates endothelial function compared with a low-fat diet and is associated with a better balance of vascular homeostasis in CHD patients, even in those with severe endothelial dysfunction. CLINICAL TRIAL REGISTRATION URL, http://www.cordioprev.es/index.php/en. clinicaltrials.gov number NCT00924937.
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19
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Wang TY, Wang W, Li FF, Chen YC, Jiang D, Chen YD, Yang H, Liu L, Lu M, Sun JS, Gu DM, Wang J, Wang AP. Maggot excretions/secretions promote diabetic wound angiogenesis via miR18a/19a - TSP-1 axis. Diabetes Res Clin Pract 2020; 165:108140. [PMID: 32277954 DOI: 10.1016/j.diabres.2020.108140] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 02/29/2020] [Accepted: 03/30/2020] [Indexed: 12/15/2022]
Abstract
AIMS The impaired angiogenesis is one of the main factors affecting the healing of diabetic foot ulcer (DFU) wounds. Maggot debridement therapy (MDT) promotes granulation tissue growth and angiogenesis during DFU wound healing. Non-coding microRNAs can also promote local angiogenesis in DFU wounds by regulating wound repairing related gene expression. The purpose of this study was to investigate the mechanism of microRNAs in MDT promoting DFU wound angiogenesis. METHODS In this study, we applied MDT to treat DFU wound tissue and detect the expression of the miR-17-92 cluster. In vitro experiments, human umbilical vein endothelial cells (HUVECs) were treated with maggot excretions/secretions (ES), the miR-17-92 cluster and the predicted target gene expression were measured. Tube formation assay and cell scratch assay were performed when inhibition of miR-18a/19a or overexpression of thrombospondin-1 (TSP-1) were used in this study. RESULTS miR-18a/19a transcription significantly up-regulated and TSP-1 expression down-regulated in patients wound tissue and in HUVECs. Inhibition of miR-18a/19a or overexpression of TSP-1 partially blocked the migration and tube formation ability stimulated by ES. CONCLUSION Targeted activation of miR-18a/19a transcription levels and subsequent regulation of TSP-1 expression may be a novel therapeutic strategy for DFU.
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Affiliation(s)
- Tian-Yuan Wang
- Endocrinology Department, Air Force Hospital of Eastern Theater Command, No.1 Malu Road, Nanjing 210002, China.
| | - Wei Wang
- Endocrinology Department, Air Force Hospital of Eastern Theater Command, No.1 Malu Road, Nanjing 210002, China.
| | - Fei-Fei Li
- Endocrinology Department, The Second Hospital of Anhui Medical University, No.678 Furong Road, Hefei 230601, China.
| | - Yin-Chen Chen
- Endocrinology Department, Air Force Hospital of Eastern Theater Command, No.1 Malu Road, Nanjing 210002, China.
| | - Dong Jiang
- Endocrinology Department, Air Force Hospital of Eastern Theater Command, No.1 Malu Road, Nanjing 210002, China.
| | - Yue-Dong Chen
- Endocrinology Department, Air Force Hospital of Eastern Theater Command, No.1 Malu Road, Nanjing 210002, China.
| | - Hui Yang
- Endocrinology Department, Air Force Hospital of Eastern Theater Command, No.1 Malu Road, Nanjing 210002, China.
| | - Lan Liu
- Endocrinology Department, Air Force Hospital of Eastern Theater Command, No.1 Malu Road, Nanjing 210002, China.
| | - Meng Lu
- Endocrinology Department, Air Force Hospital of Eastern Theater Command, No.1 Malu Road, Nanjing 210002, China.
| | - Jin-Shan Sun
- Endocrinology Department, Air Force Hospital of Eastern Theater Command, No.1 Malu Road, Nanjing 210002, China.
| | - Dong-Mei Gu
- Endocrinology Department, Air Force Hospital of Eastern Theater Command, No.1 Malu Road, Nanjing 210002, China.
| | - Jing Wang
- Translational medicine center, Air Force Hospital of Eastern Theater Command, No.1 Malu Road, Nanjing 210002, China.
| | - Ai-Ping Wang
- Endocrinology Department, Air Force Hospital of Eastern Theater Command, No.1 Malu Road, Nanjing 210002, China.
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20
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Yang JL, Sun MY, Yuan Q, Tang S, Dong MJ, Zhang RD, Liu YY, Mao L. Keap1-Nrf2 signaling activation by Bardoxolone-methyl ameliorates high glucose-induced oxidative injury in human umbilical vein endothelial cells. Aging (Albany NY) 2020; 12:10370-10380. [PMID: 32484788 PMCID: PMC7346051 DOI: 10.18632/aging.103263] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Accepted: 04/20/2020] [Indexed: 12/22/2022]
Abstract
In cultured human umbilical vein endothelial cells (HUVECs) high glucose (HG) stimulation will lead to significant cell death. Bardoxolone-methyl (BARD) is a NF-E2 p45-related factor 2 (Nrf2) agonist. In this study we show that BARD, at only nM concentrations, activated Nrf2 signaling in HUVECs. BARD induced Keap1-Nrf2 disassociation, Nrf2 protein stabilization and nuclear translocation, increasing expression of antioxidant response element (ARE) genes. BARD pretreatment in HUVECs inhibited HG-induced reactive oxygen species production, oxidative injury and cell apoptosis. Nrf2 shRNA or knockout (using a CRISPR/Cas9 construct) reversed BARD-induced cytoprotection in HG-stimulated HUVECs. Conversely, forced activation of Nrf2 cascade by Keap1 shRNA mimicked BARD’s activity and protected HUVECs from HG. Importantly, BARD failed to offer further cytoprotection against HG in the Keap1-silened HUVECs. Taken together, Keap1-Nrf2 cascade activation by BARD protects HUVECs from HG-induced oxidative injury.
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Affiliation(s)
- Jing-Lei Yang
- Department of Endocrinology, The Affiliated Huai'an People's Hospital of Nanjing Medical University, Huai'an, China
| | - Meng-Yue Sun
- Department of Endocrinology, The Affiliated Huai'an People's Hospital of Nanjing Medical University, Huai'an, China
| | - Qi Yuan
- Department of Endocrinology, The Affiliated Huai'an People's Hospital of Nanjing Medical University, Huai'an, China
| | - Shan Tang
- Department of Endocrinology, The Affiliated Huai'an People's Hospital of Nanjing Medical University, Huai'an, China
| | - Mei-Juan Dong
- Department of Endocrinology, The Affiliated Huai'an People's Hospital of Nanjing Medical University, Huai'an, China
| | - Ri-Dong Zhang
- Department of Endocrinology, The Affiliated Huai'an People's Hospital of Nanjing Medical University, Huai'an, China
| | - Yuan-Yuan Liu
- Department of Endocrinology, The Affiliated Huai'an People's Hospital of Nanjing Medical University, Huai'an, China
| | - Li Mao
- Department of Endocrinology, The Affiliated Huai'an People's Hospital of Nanjing Medical University, Huai'an, China
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21
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Light exercise without lactate elevation induces ischemic tolerance through the modulation of microRNA in the gerbil hippocampus. Brain Res 2020; 1732:146710. [PMID: 32035888 DOI: 10.1016/j.brainres.2020.146710] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2019] [Revised: 01/31/2020] [Accepted: 02/05/2020] [Indexed: 12/11/2022]
Abstract
Previously we studied the possible neuroprotective effects of ischemia-resistant exercise in a gerbil model of transient whole-brain ischemia and evaluated the histology, expression of specific proteins, and brain function under different conditions. The present study investigated the neuroprotective effects of light exercise, without lactate elevation, in a gerbil model of ischemia/reperfusion injury. Transient whole-brain ischemia was induced by occlusion of the bilateral common carotid arteries for 5 min. A group of animals was subjected to treadmill exercise before ischemia induction. Hippocampal neuronal damage and miRNA expression, as well as behavioral deficits and plasma lactate levels, were evaluated. Light exercise suppressed hippocampal neuron loss and preserved short-term memory. Moreover, 14 miRNAs (mmu-miR-211-3p, -327, -451b, -711, -3070-3p, -3070-2-3p, -3097-5p, -3620-5p, -6240, -6916-5p, -6944-5p, 7083-5p, -7085-5p, and -7674-5p) were upregulated and 6 miRNAs (mmu-miR-148b-3p, -152-3p, -181c-5p, -299b-5p, -455-3p, and -664-3p) were downregulated due to ischemia. However, the expression of these miRNAs remained unchanged when animals performed light exercise before the ischemic event. Differentially expressed miRNAs regulate multiple biological processes such as inflammation, metabolism, and cell death. These findings suggest that light exercise reduces neuronal death and behavioral deficits after transient ischemia by regulating hippocampal miRNAs.
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22
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Wang P, Ma H, Zhang Y, Zeng R, Yu J, Liu R, Jin X, Zhao Y. Plasma Exosome-derived MicroRNAs as Novel Biomarkers of Traumatic Brain Injury in Rats. Int J Med Sci 2020; 17:437-448. [PMID: 32174774 PMCID: PMC7053301 DOI: 10.7150/ijms.39667] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Accepted: 01/05/2020] [Indexed: 12/11/2022] Open
Abstract
Traumatic brain injury (TBI) is a widespread central nervous system (CNS) condition and a leading cause of death, disability, and long-term disability including seizures and emotional and behavioral issues. To date, applicable diagnostic biomarkers have not been elucidated. MicroRNAs (miRNAs) are enriched and stable in exosomes in plasma. Therefore, we speculated that miRNAs in plasma exosomes might serve as novel biomarkers for TBI diagnosis and are also involved in the pathogenesis of TBI. In this study, we first isolated exosomes from peripheral blood plasma in rats with TBI and then investigated the alterations in miRNA expression in exosomes by high-throughput RNA sequencing. As a result, we identified 50 significantly differentially expressed miRNAs, including 31 upregulated and 19 downregulated miRNAs. Then, gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis revealed that the most highly correlated pathways that were identified were the MAPK signaling pathway, regulation of actin cytoskeleton, Rap1 signaling pathway and Ras signaling pathway. This study provides novel perspectives on miRNAs in peripheral blood plasma exosomes, which not only could be used as biomarkers of TBI diagnosis but could also be manipulated as therapeutic targets of TBI.
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Affiliation(s)
- Pengcheng Wang
- Emergency Center, Zhongnan Hospital of Wuhan University, Wuhan 430071, China.,Hubei Clinical Research Center for Emergency and Resuscitation, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
| | - Haoli Ma
- Emergency Center, Zhongnan Hospital of Wuhan University, Wuhan 430071, China.,Hubei Clinical Research Center for Emergency and Resuscitation, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
| | - Yuxian Zhang
- Emergency Center, Zhongnan Hospital of Wuhan University, Wuhan 430071, China.,Hubei Clinical Research Center for Emergency and Resuscitation, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
| | - Rong Zeng
- Emergency Center, Zhongnan Hospital of Wuhan University, Wuhan 430071, China.,Hubei Clinical Research Center for Emergency and Resuscitation, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
| | - Jiangtao Yu
- Emergency Center, Zhongnan Hospital of Wuhan University, Wuhan 430071, China.,Hubei Clinical Research Center for Emergency and Resuscitation, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
| | - Ruining Liu
- Emergency Center, Zhongnan Hospital of Wuhan University, Wuhan 430071, China.,Hubei Clinical Research Center for Emergency and Resuscitation, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
| | - Xiaoqing Jin
- Emergency Center, Zhongnan Hospital of Wuhan University, Wuhan 430071, China.,Hubei Clinical Research Center for Emergency and Resuscitation, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
| | - Yan Zhao
- Emergency Center, Zhongnan Hospital of Wuhan University, Wuhan 430071, China.,Hubei Clinical Research Center for Emergency and Resuscitation, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
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23
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Zhang X, Liu Z, Shu Q, Yuan S, Xing Z, Song J. LncRNA SNHG6 functions as a ceRNA to regulate neuronal cell apoptosis by modulating miR-181c-5p/BIM signalling in ischaemic stroke. J Cell Mol Med 2019; 23:6120-6130. [PMID: 31334597 PMCID: PMC6714173 DOI: 10.1111/jcmm.14480] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 04/04/2019] [Accepted: 04/28/2019] [Indexed: 12/11/2022] Open
Abstract
Long non-coding RNAs (lncRNAs) play important roles in the pathogenesis of brain and neurodegenerative disorders. As far as we know, the functions and potential mechanisms of small nucleolar RNA host gene 6 (SNHG6) in ischaemic stroke have not been explored. This study aimed to examine the functional role of SNHG6 in the ischaemic stroke. Middle cerebral artery occlusion (MCAO) in mice and the oxygen glucose deprivation (OGD)-induced injury in neuronal cells were applied to mimic ischaemic stroke. TTC staining, quantitative real-time PCR, cell apoptosis assay, caspase-3 activity assay, Western blot, RNA immunoprecipitation and luciferase reporter assay were performed to evaluate the function and possible mechanisms of SNHG6 in the pathogenesis of ischaemic stroke. The results show that SNHG6 expression was significantly increased both OGD-induced neuronal cells and MCAO model mice. In vitro results showed that inhibition of SNHG6 increased cell viability, inhibited cell apoptosis and caspase-3 activity in OGD-induced neuronal cells. Consistently, knockdown of SNHG6 reduced brain infarct size and improved neurological scores in the MCAO mice. Mechanistic study further revealed that SNHG6 functioned as a competing endogenous RNA (ceRNA) for miR-181c-5p, which in turn repressed its downstream target of Bcl-2 interacting mediator of cell death (BIM) and inhibiting cell apoptosis. This study revealed a novel function of SNHG6 in the modulating neuronal apoptosis in the ischaemic stroke model, and the role of SNHG6 in the regulating of neuronal apoptosis was at least partly via targeting miR-181c-5p/BIM signalling pathway.
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Affiliation(s)
- Xi'an Zhang
- Department of NeurosurgeryThe First Affiliated Hospital of Xi'an Jiaotong UniversityXi'anChina
- Department of NeurosurgeryThe Ninth Hospital of Xi'anXi'anChina
| | - Zhanhui Liu
- Department of NeurosurgeryThe Ninth Hospital of Xi'anXi'anChina
| | - Qing Shu
- Department of PharmacyThe Ninth Hospital of Xi'anXi'anChina
| | - Shanqi Yuan
- Department of NeurosurgeryThe Ninth Hospital of Xi'anXi'anChina
| | - Zhiguo Xing
- Department of NeurosurgeryThe First Affiliated Hospital of Xi'an Jiaotong UniversityXi'anChina
| | - Jinning Song
- Department of NeurosurgeryThe First Affiliated Hospital of Xi'an Jiaotong UniversityXi'anChina
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24
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Jin G, Wang Q, Hu X, Li X, Pei X, Xu E, Li M. Profiling and functional analysis of differentially expressed circular RNAs in high glucose-induced human umbilical vein endothelial cells. FEBS Open Bio 2019; 9:1640-1651. [PMID: 31369204 PMCID: PMC6722901 DOI: 10.1002/2211-5463.12709] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 07/07/2019] [Accepted: 07/31/2019] [Indexed: 12/18/2022] Open
Abstract
Dysfunction of vascular endothelial cells often results in diabetic vascular complications. Circular RNAs (circRNAs) have been implicated in the pathogenesis of various diseases, including diabetes and many vascular diseases. This study aimed to explore the roles of circRNAs in high glucose‐induced human umbilical vein endothelial cells (HUVECs) to elucidate the contributions of circRNAs to diabetic vascular complications. We subjected control and high glucose‐induced HUVECs to RNA sequencing and identified 214 differentially expressed circRNAs (versus control HUVECs, fold change ≥ 2.0, P < 0.05). We then validated seven of these differentially expressed circRNAs by qPCR (hsa_circ_0008360, hsa_circ_0005741, hsa_circ_0003250, hsa_circ_0045462, hsa_circ_0064772, hsa_circ_0007976, and hsa_circ_0005263). A representative circRNA–microRNA (miRNA) network was constructed using the three most up‐regulated circRNAs (hsa_circ_0008360, hsa_circ_0000109, and hsa_circ_0002317) and their putative miRNA. Bioinformatic analysis indicated that these circRNAs regulate the expressions of genes involved in vascular endothelial function and angiogenesis through targeting miRNAs. Our work highlights the potential regulatory mechanisms of three crucial circRNAs in diabetes‐associated endothelial dysfunction.
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Affiliation(s)
- Guoxi Jin
- Department of Endocrinology, First Affiliated Hospital of Bengbu Medical College, Anhui, China
| | - Qiong Wang
- Department of Endocrinology, First Affiliated Hospital of Bengbu Medical College, Anhui, China
| | - Xiaolei Hu
- Department of Endocrinology, First Affiliated Hospital of Bengbu Medical College, Anhui, China
| | - Xiaoli Li
- Department of Endocrinology, First Affiliated Hospital of Bengbu Medical College, Anhui, China
| | - Xiaoyan Pei
- Department of Endocrinology, First Affiliated Hospital of Bengbu Medical College, Anhui, China
| | - Erqin Xu
- Room of Physical Diagnostics, Bengbu Medical College, Anhui, China
| | - Minglong Li
- Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong, China
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25
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MicroRNA-181c Inhibits Interleukin-6-mediated Beta Cell Apoptosis by Targeting TNF-α Expression. Molecules 2019; 24:molecules24071410. [PMID: 30974824 PMCID: PMC6480349 DOI: 10.3390/molecules24071410] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2019] [Revised: 04/08/2019] [Accepted: 04/09/2019] [Indexed: 12/21/2022] Open
Abstract
We have previously reported that long-term treatment of beta cells with interleukin-6 (IL-6) is pro-apoptotic. However, little is known about the regulatory mechanisms that are involved. Therefore, we investigated pro-apoptotic changes in mRNA expression in beta cells in response to IL-6 treatment. We analyzed a microarray with RNA from INS-1 beta cells treated with IL-6, and found that TNF-α mRNA was significantly upregulated. Inhibition of TNF-α expression by neutralizing antibodies significantly decreased annexin V staining in cells compared with those treated with a control antibody. We identified three microRNAs that were differentially expressed in INS-1 cells incubated with IL-6. In particular, miR-181c was significantly downregulated in IL-6-treated cells compared with control cells and the decrease of miR-181c was attenuated by STAT-3 signaling inhibition. TNF-α mRNA was a direct target of miR-181c and upregulation of miR-181c by mimics, inhibited IL-6-induced increase in TNF-α mRNA expression. Consequently, reduction of TNF-α mRNA caused by miR-181c mimics enhanced cell viability in IL-6 treated INS-1 cells. These results demonstrated that miR-181c regulation of TNF-α expression plays a role in IL-6-induced beta cell apoptosis.
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26
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Sun Z, Li Y, Wang H, Cai M, Gao S, Liu J, Tong L, Hu Z, Wang Y, Wang K, Zhang L, Cao X, Zhang S, Shi F, Zhao J. miR-181c-5p mediates simulated microgravity-induced impaired osteoblast proliferation by promoting cell cycle arrested in the G 2 phase. J Cell Mol Med 2019; 23:3302-3316. [PMID: 30761733 PMCID: PMC6484313 DOI: 10.1111/jcmm.14220] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2018] [Revised: 01/06/2019] [Accepted: 01/23/2019] [Indexed: 12/15/2022] Open
Abstract
Impaired osteoblast proliferation plays fundamental roles in microgravity‐induced bone loss, and cell cycle imbalance may result in abnormal osteoblast proliferation. However, whether microgravity exerts an influence on the cell cycle in osteoblasts or what mechanisms may underlie such an effect remains to be fully elucidated. Herein, we confirmed that simulated microgravity inhibits osteoblast proliferation. Then, we investigated the effect of mechanical unloading on the osteoblast cell cycle and found that simulated microgravity arrested the osteoblast cell cycle in the G2 phase. In addition, our data showed that cell cycle arrest in osteoblasts from simulated microgravity was mainly because of decreased cyclin B1 expression. Furthermore, miR‐181c‐5p directly inhibited cyclin B1 protein translation by binding to a target site in the 3′UTR. Lastly, we demonstrated that inhibition of miR‐181c‐5p partially counteracted cell cycle arrest and decreased the osteoblast proliferation induced by simulated microgravity. In conclusion, our study demonstrates that simulated microgravity inhibits cell proliferation and induces cell cycle arrest in the G2 phase in primary mouse osteoblasts partially through the miR‐181c‐5p/cyclin B1 pathway. This work may provide a novel mechanism of microgravity‐induced detrimental effects on osteoblasts and offer a new avenue to further investigate bone loss induced by mechanical unloading.
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Affiliation(s)
- Zhongyang Sun
- Department of Orthopedics, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China.,Department of Orthopedics, Junxie Hospital, Anhui Medical University, Nanjing, China.,The Key Laboratory of Aerospace Medicine, Chinese Ministry of Education, Fourth Military Medical University, Xi'an, China
| | - Ying Li
- Department of Orthopedics, Junxie Hospital, Anhui Medical University, Nanjing, China
| | - Han Wang
- Department of Orthopedics, Affiliated Hospital of Air Force Aviation Medicine Research Institute, Fourth Military Medical University, Beijing, China
| | - Min Cai
- Department of Orthopedics, Junxie Hospital, Anhui Medical University, Nanjing, China.,Medical Services Section, Junxie Hospital, Anhui Medical University, Nanjing, China
| | - Shanshan Gao
- Medical Services Section, Junxie Hospital, Anhui Medical University, Nanjing, China
| | - Jing Liu
- Department of Pharmacy, Junxie Hospital, Anhui Medical University, Nanjing, China
| | - Liangcheng Tong
- Department of Orthopedics, Junxie Hospital, Anhui Medical University, Nanjing, China
| | - Zebing Hu
- The Key Laboratory of Aerospace Medicine, Chinese Ministry of Education, Fourth Military Medical University, Xi'an, China
| | - Yixuan Wang
- The Key Laboratory of Aerospace Medicine, Chinese Ministry of Education, Fourth Military Medical University, Xi'an, China
| | - Ke Wang
- The Key Laboratory of Aerospace Medicine, Chinese Ministry of Education, Fourth Military Medical University, Xi'an, China
| | - Lijun Zhang
- The Key Laboratory of Aerospace Medicine, Chinese Ministry of Education, Fourth Military Medical University, Xi'an, China
| | - Xinsheng Cao
- The Key Laboratory of Aerospace Medicine, Chinese Ministry of Education, Fourth Military Medical University, Xi'an, China
| | - Shu Zhang
- The Key Laboratory of Aerospace Medicine, Chinese Ministry of Education, Fourth Military Medical University, Xi'an, China
| | - Fei Shi
- The Key Laboratory of Aerospace Medicine, Chinese Ministry of Education, Fourth Military Medical University, Xi'an, China
| | - Jianning Zhao
- Department of Orthopedics, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China
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Angiopoietin-1 Promotes the Integrity of Neovascularization in the Subcutaneous Matrigel of Type 1 Diabetic Rats. BIOMED RESEARCH INTERNATIONAL 2019; 2019:2016972. [PMID: 30729120 PMCID: PMC6343146 DOI: 10.1155/2019/2016972] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Accepted: 12/30/2018] [Indexed: 12/21/2022]
Abstract
Objective This study aimed to investigate the effects of Ang-1 on neovascularization of diabetic organs by subcutaneous Matrigel angiogenesis model, established in type 1 diabetic rats. Methods Ang-1 adenoviral vector was constructed. The rat model was established by STZ and divided into four group. The Matrigel was inserted subcutaneously into the abdominal cavity of rats at 8 weeks, the treatment group was injected with Ang-1 adenovirus vector via tail vein, and the rats were sacrificed at 10 weeks. Neovascularization of Matrigel was observed with transmission electron microscopy. The marker of vascular endothelial cell and pericyte were detected by immunofluorescence. Immunohistochemical detection of the neovascular endothelial junction protein was performed. RT-PCR was used to determine protein expression of neovascular in Matrigel. Results Vascular cavity-like structure could be seen in subcutaneous Matrigel of diabetic rats, and the cavity was filled with a lot of red blood cells. Transmission electron microscopy showed that neovascular endothelial structure of the Matrigel was incomplete, while the Ang-1 treatment group had more vascular cavity-like structures, intact vascular endothelial structure, and reduced inflammatory cell infiltration in Matrigel. Additionally, the integrity of vascularization improved, and the marker of pericyte and the cell tight junctions protein was upregulated in Ang-1 treatment group. Conclusion Hyperglycemia could induce pathological angiogenesis in subcutaneous Matrigel of diabetic rats, and Ang-1 could upregulate the expression of intercellular junction protein in subcutaneous Matrigel of diabetic rats and promote the integrity of neovascularization in the subcutaneous Matrigel of diabetic rats.
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Jin G, Wang Q, Pei X, Li X, Hu X, Xu E, Li M. mRNAs expression profiles of high glucose-induced memory in human umbilical vein endothelial cells. Diabetes Metab Syndr Obes 2019; 12:1249-1261. [PMID: 31413614 PMCID: PMC6662530 DOI: 10.2147/dmso.s206270] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2019] [Accepted: 06/22/2019] [Indexed: 12/23/2022] Open
Abstract
PURPOSE A long-term "memory" of hyperglycemic stress, even when glycemia is normalized, has been previously reported in endothelial cells. However, the molecular mechanism of "metabolic memory" (MM) remains unknown. In this report, we sought to screen at the whole transcriptome level the genes that participate in MM. METHODS In the present research, RNA sequencing was used to determine the protein-coding mRNA expression profiles of human umbilical vein endothelial cells (HUVECs) under normal-glucose concentration (LG), high-glucose concentration (HG), and MM. A series of bioinformatic analyses was performed. HG-induced MM-involved up-regulated genes (up-HGMMGs) and HG-induced MM-involved down-regulated genes (down-HGMMGs) were identified. Afterward, based on up-HGMMGs and down-HGMMGs, the biological functions and signaling pathways were analyzed using Gene Ontology (GO) and the Kyoto Encyclopedia of Genes and Genomes (KEGG). In addition, several of the identified genes were validated by RT-qPCR. RESULTS A total of 726 HGMMGs were identified, including 210 down- and 516 up-HGMMGs, which were enriched in the cell cycle (hsa04110), oocyte meiosis (hsa04114), p53 signaling pathway (hsa04115), and oxidative phosphorylation (hsa00190), among others. The protein-protein-interaction (PPI) network consisted of 462 nodes and 2656 connections, and four main modules were identified by MCODE. The cell cycle (hsa04110), oocyte meiosis (hsa04114), p53 signaling pathway (hsa04115), and oxidative phosphorylation (hsa00190), among others, could be potential therapeutic targets of HG-induced MM in endothelial cells. The real-time PCR results validated the RNA-seq data. CONCLUSION This study identified crucial mRNAs related to MM-persistent injury in endothelial cells even after switching the cells from high- glucose to normal glucose levels. Further research focusing on these mRNA may unravel new ways to modify MM in diabetes.
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Affiliation(s)
- Guoxi Jin
- Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong250021, People’s Republic of China
- Department of Endocrinology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui233004, People’s Republic of China
| | - Qiong Wang
- Department of Endocrinology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui233004, People’s Republic of China
| | - Xiaoyan Pei
- Department of Endocrinology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui233004, People’s Republic of China
| | - Xiaoli Li
- Department of Endocrinology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui233004, People’s Republic of China
| | - Xiaolei Hu
- Department of Endocrinology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui233004, People’s Republic of China
| | - Erqin Xu
- Room of Physical Diagnostics, Clinical College of Medicine, Bengbu Medical College, Bengbu, Anhui233030, People’s Republic of China
| | - Minglong Li
- Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong250021, People’s Republic of China
- Correspondence: Minglong Li Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong University, 324 Jingwu Road, Huaiyin Zone, Jinan, Shandong Province250012, People’s Republic of ChinaTel +86 5 316 877 6375Fax +86 5 316 877 6383 Email
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