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Tiwari P, Elgazzaz M, Lazartigues E, Hanif K. Effect of Diminazene Aceturate, an ACE2 activator, on platelet CD40L signaling induced glial activation in rat model of hypertension. Int Immunopharmacol 2024; 139:112654. [PMID: 38996777 DOI: 10.1016/j.intimp.2024.112654] [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: 10/24/2023] [Revised: 06/30/2024] [Accepted: 07/06/2024] [Indexed: 07/14/2024]
Abstract
Hypertension causes platelet activation and adhesion in the brain resulting in glial activation and neuroinflammation. Further, activation of Angiotensin-Converting Enzyme 2/Angiotensin (1-7)/Mas Receptor (ACE2/Ang (1-7)/MasR) axis of central Renin-Angiotensin System (RAS), is known to reduce glial activation and neuroinflammation, thereby exhibiting anti-hypertensive and anti-neuroinflammatory properties. Therefore, in the present study, the role of ACE2/Ang (1-7)/MasR axis was studied on platelet-induced glial activation and neuroinflammation using Diminazene Aceturate (DIZE), an ACE2 activator, in astrocytes and microglial cells as well as in rat model of hypertension. We found that the ACE2 activator DIZE, independently of its BP-lowering properties, efficiently prevented hypertension-induced glial activation, neuroinflammation, and platelet CD40-CD40L signaling via upregulation of ACE2/Ang (1-7)/MasR axis. Further, DIZE decreased platelet deposition in the brain by reducing the expression of adhesion molecules on the brain endothelium. Activation of ACE2 also reduced hypertension-induced endothelial dysfunction by increasing eNOS bioavailability. Interestingly, platelets isolated from hypertensive rats or activated with ADP had significantly increased sCD40L levels and induced significantly more glial activation than platelets from DIZE treated group. Therefore, injection of DIZE pre-treated ADP-activated platelets into normotensive rats strongly reduced glial activation compared to ADP-treated platelets. Moreover, CD40L-induced glial activation, CD40 expression, and NFкB-NLRP3 inflammatory signaling are reversed by DIZE. Furthermore, the beneficial effects of ACE2 activation, DIZE was found to be significantly blocked by MLN4760 (ACE2 inhibitor) as well as A779 (MasR antagonist) treatments. Hence, our study demonstrated that ACE2 activation reduced the platelet CD40-CD40L induced glial activation and neuroinflammation, hence imparted neuroprotection.
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Affiliation(s)
- Priya Tiwari
- Division of Pharmacology, CSIR-Central Drug Research Institute, Lucknow 226031, U.P., India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Mona Elgazzaz
- Department of Pharmacology & Experimental Therapeutics, Louisiana State University Health Sciences Center, New Orleans, LA 70112, USA
| | - Eric Lazartigues
- Department of Pharmacology & Experimental Therapeutics, Louisiana State University Health Sciences Center, New Orleans, LA 70112, USA
| | - Kashif Hanif
- Division of Pharmacology, CSIR-Central Drug Research Institute, Lucknow 226031, U.P., India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.
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Tiwari P, Mueed S, Abdulkareem AO, Hanif K. Activation of angiotensin converting enzyme 2 promotes hippocampal neurogenesis via activation of Wnt/β-catenin signaling in hypertension. Mol Cell Neurosci 2024; 130:103953. [PMID: 39013481 DOI: 10.1016/j.mcn.2024.103953] [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: 03/21/2024] [Revised: 07/07/2024] [Accepted: 07/10/2024] [Indexed: 07/18/2024] Open
Abstract
Hypertension-induced brain renin-angiotensin system (RAS) activation and neuroinflammation are hallmark neuropathological features of neurodegenerative diseases. Previous studies from our lab have shown that inhibition of ACE/Ang II/AT1R axis (by AT1R blockers or ACE inhibitors) reduced neuroinflammation and accompanied neurodegeneration via up-regulating adult hippocampal neurogenesis. Apart from this conventional axis, another axis of RAS also exists i.e., ACE2/Ang (1-7)/MasR axis, reported as an anti-hypertensive and anti-inflammatory. However, the role of this axis has not been explored in hypertension-induced glial activation and hippocampal neurogenesis in rat models of hypertension. Hence, in the present study, we examined the effect of ACE2 activator, Diminazene aceturate (DIZE) at 2 different doses of 10 mg/kg (non-antihypertensive) and 15 mg/kg (antihypertensive dose) in renovascular hypertensive rats to explore whether their effect on glial activation, neuroinflammation, and neurogenesis is either influenced by blood-pressure. The results of our study revealed that hypertension induced significant glial activation (astrocyte and microglial), neuroinflammation, and impaired hippocampal neurogenesis. However, ACE2 activation by DIZE, even at the low dose prevented these hypertension-induced changes in the brain. Mechanistically, ACE2 activation inhibited Ang II levels, TRAF6-NFκB mediated inflammatory signaling, NOX4-mediated ROS generation, and mitochondrial dysfunction by upregulating ACE2/Ang (1-7)/MasR signaling. Moreover, DIZE-induced activation of the ACE2/Ang (1-7)/MasR axis upregulated Wnt/β-catenin signaling, promoting hippocampal neurogenesis during the hypertensive state. Therefore, our study demonstrates that ACE2 activation can effectively prevent glial activation and enhance hippocampal neurogenesis in hypertensive conditions, regardless of its blood pressure-lowering effects.
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Affiliation(s)
- Priya Tiwari
- Division of Pharmacology, CSIR-Central Drug Research Institute, Lucknow 226031, U.P., India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Sumbul Mueed
- Division of Pharmacology, CSIR-Central Drug Research Institute, Lucknow 226031, U.P., India
| | - Adam Olaitan Abdulkareem
- Division of Pharmacology, CSIR-Central Drug Research Institute, Lucknow 226031, U.P., India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India; Animal Physiology Unit, Department of Zoology, University of Ilorin, Ilorin, Nigeria
| | - Kashif Hanif
- Division of Pharmacology, CSIR-Central Drug Research Institute, Lucknow 226031, U.P., India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.
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Geng F, Xu J, Ren X, Zhao Y, Cai Y, Li Y, Jin F, Li T, Gao X, Cai W, Xu H, Wei Z, Mao N, Sun Y, Yang F. Effect of macrophage-to-myofibroblast transition on silicosis. Animal Model Exp Med 2024. [PMID: 38979656 DOI: 10.1002/ame2.12470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Accepted: 06/23/2024] [Indexed: 07/10/2024] Open
Abstract
BACKGROUND The aim was to explore the effect of macrophage polarization and macrophage-to-myofibroblast transition (MMT) in silicosis. METHODS Male Wistar rats were divided into a control group and a silicosis group developed using a HOPE MED 8050 dynamic automatic dusting system. Murine macrophage MH-S cells were randomly divided into a control group and an SiO2 group. The pathological changes in lung tissue were observed using hematoxylin and eosin (HE) and Van Gieson (VG) staining. The distribution and location of macrophage marker (F4/80), M1 macrophage marker (iNOS), M2 macrophage marker (CD206), and myofibroblast marker (α-smooth muscle actin [α-SMA]) were detected using immunohistochemical and immunofluorescent staining. The expression changes in iNOS, Arg, α-SMA, vimentin, and type I collagen (Col I) were measured using Western blot. RESULTS The results of HE and VG staining showed obvious silicon nodule formation and the distribution of thick collagen fibers in the lung tissue of the silicosis group. Macrophage marker F4/80 increased gradually from 8 to 32 weeks after exposure to silica. Immunohistochemical and immunofluorescent staining results revealed that there were more iNOS-positive cells and some CD206-positive cells in the lung tissue of the silicosis group at 8 weeks. More CD206-positive cells were found in the silicon nodules of the lung tissues in the silicosis group at 32 weeks. Western blot analysis showed that the expressions of Inducible nitric oxide synthase and Arg protein in the lung tissues of the silicosis group were upregulated compared with those of the control group. The results of immunofluorescence staining showed the co-expression of F4/80, α-SMA, and Col I, and CD206 and α-SMA were co-expressed in the lung tissue of the silicosis group. The extracted rat alveolar lavage fluid revealed F4/80+α-SMA+, CD206+α-SMA+, and F4/80+α-SMA+Col I+ cells using immunofluorescence staining. Similar results were also found in MH-S cells induced by SiO2. CONCLUSIONS The development of silicosis is accompanied by macrophage polarization and MMT.
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Affiliation(s)
- Fei Geng
- Hebei Key Laboratory for Organ Fibrosis Research, School of Public Health, North China University of Science and Technology, Tangshan, China
- Department of Pathology, Hebei Key Laboratory for Chronic Diseases, School of Basic Medical Sciences, North China University of Science and Technology, Tangshan, China
| | - Jingrou Xu
- Hebei Key Laboratory for Organ Fibrosis Research, School of Public Health, North China University of Science and Technology, Tangshan, China
| | - Xichen Ren
- Hebei Key Laboratory for Organ Fibrosis Research, School of Public Health, North China University of Science and Technology, Tangshan, China
| | - Ying Zhao
- Hebei Key Laboratory for Organ Fibrosis Research, School of Public Health, North China University of Science and Technology, Tangshan, China
| | - Yuhao Cai
- Hebei Key Laboratory for Organ Fibrosis Research, School of Public Health, North China University of Science and Technology, Tangshan, China
| | - Yaqian Li
- Hebei Key Laboratory for Organ Fibrosis Research, School of Public Health, North China University of Science and Technology, Tangshan, China
| | - Fuyu Jin
- Hebei Key Laboratory for Organ Fibrosis Research, School of Public Health, North China University of Science and Technology, Tangshan, China
| | - Tian Li
- Hebei Key Laboratory for Organ Fibrosis Research, School of Public Health, North China University of Science and Technology, Tangshan, China
| | - Xuemin Gao
- Hebei Key Laboratory for Organ Fibrosis Research, School of Public Health, North China University of Science and Technology, Tangshan, China
| | - Wenchen Cai
- Hebei Key Laboratory for Organ Fibrosis Research, School of Public Health, North China University of Science and Technology, Tangshan, China
| | - Hong Xu
- Hebei Key Laboratory for Organ Fibrosis Research, School of Public Health, North China University of Science and Technology, Tangshan, China
| | - Zhongqiu Wei
- Department of Pathology, Hebei Key Laboratory for Chronic Diseases, School of Basic Medical Sciences, North China University of Science and Technology, Tangshan, China
| | - Na Mao
- Hebei Key Laboratory for Organ Fibrosis Research, School of Public Health, North China University of Science and Technology, Tangshan, China
| | - Ying Sun
- Department of Pathology, Hebei Key Laboratory for Chronic Diseases, School of Basic Medical Sciences, North China University of Science and Technology, Tangshan, China
| | - Fang Yang
- Hebei Key Laboratory for Organ Fibrosis Research, School of Public Health, North China University of Science and Technology, Tangshan, China
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Blanco-Pérez J, Salgado-Barreira Á, Blanco-Dorado S, González Bello ME, Caldera Díaz AC, Pérez-Gonzalez A, Pallarés Sanmartín A, Fernández Villar A, Gonzalez-Barcala FJ. Clinical usefulness of serum angiotensin converting enzyme in silicosis. Pulmonology 2024; 30:370-377. [PMID: 36280590 DOI: 10.1016/j.pulmoe.2022.06.002] [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: 06/18/2021] [Revised: 06/07/2022] [Accepted: 06/07/2022] [Indexed: 06/16/2023] Open
Abstract
INTRODUCTION Silicosis is an irreversible and incurable disease. Preventive measures to eliminate exposure are the only effective way to reduce morbidity and mortality. In such situations, having a biomarker for early diagnosis or to predict evolution would be very useful in order to improve control of the disease. The elevation of serum angiotensin-converting enzyme (sACE) in silicosis has been described in previous studies, although its relationship with severity and prognosis is not clear. AIMS To determine the levels of sACE in a cohort of patients with exposure to silica dust with and without silicosis, and to assess their impact on the prognosis of the aforementioned patients. METHOD Prospective observational study on patients treated in a silicosis clinic from 2009 to 2018. sACE levels and pulmonary function tests were performed. Radiological progression was assessed in patients who had already had 2 X-rays of the thorax and / or two CT scans with at least a 1-year interval, from the time of inclusion in the study. RESULTS A total of 413 cases of silicosis were confirmed, as well as 73 with exposure to silica dust but without silicosis. The mean sACE level for healthy subjects was 27.5±7.3U/L, for exposed patients without silicosis it was 49.6±24.2U/L, for simple silicosis it was 57.8±31,3U/L and for complicated silicosis it was 74.5±38.6U/L. Patients with a higher sACE generally progressed radiologically during follow-up (73.3±38.0 vs. 60.4±33.7; p<.001) and so the category of silicosis changed (73,9±38.1 vs. 62.5±34.6; p<.021). CONCLUSIONS sACE was elevated in patients with silicosis, and the greater its severity, the higher it was, which is associated with disease progression measured radiologically or as a category change of silicosis.
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Affiliation(s)
- J Blanco-Pérez
- Pneumology Department, University Hospital Complex of Vigo, Spain..
| | - Á Salgado-Barreira
- Department of Preventive Medicine and Public Health, University of Santiago de Compostela, Santiago de Compostela, Spain.; Health Research Institute of Santiago de Compostela (IDIS), Santiago de Compostela, Spain.; Consortium for Biomedical Research in Epidemiology and Public Health (CIBER en Epidemiología y Salud Pública-CIBERESP), Carlos III Health Institute, Madrid, Spain..
| | - S Blanco-Dorado
- Pharmacy Department, University Hospital Complex of Santiago de Compostela, Spain
| | | | - A C Caldera Díaz
- Radiology Department, University Hospital Complex of Vigo, Spain
| | - A Pérez-Gonzalez
- Internal Medicine Department, University Hospital Complex of Vigo, Spain
| | | | | | - F J Gonzalez-Barcala
- Pneumology Department, University Hospital Complex of Vigo, Spain.; Health Research Institute of Santiago de Compostela (IDIS), Santiago de Compostela, Spain.; Pneumology Department, University Hospital Complex of Santiago de Compostela; Spanish Biomedical Research Networking Centre-CIBERES, Spain
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Alkhofash NF, Ali BR. The Evaluation of Drugs as Potential Modulators of the Trafficking and Maturation of ACE2, the SARS-CoV-2 Receptor. Biomolecules 2024; 14:764. [PMID: 39062478 PMCID: PMC11274373 DOI: 10.3390/biom14070764] [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: 05/18/2024] [Revised: 06/15/2024] [Accepted: 06/17/2024] [Indexed: 07/28/2024] Open
Abstract
ACE2, part of the angiotensin-converting enzyme family and the renin-angiotensin-aldosterone system (RAAS), plays vital roles in cardiovascular and renal functions. It is also the primary receptor for SARS-CoV-2, enabling its entry into cells. This project aimed to study ACE2's cellular trafficking and maturation to the cell surface and assess the impact of various drugs and compounds on these processes. We used cellular and biochemical analyses to evaluate these compounds as potential leads for COVID-19 therapeutics. Our screening assay focused on ACE2 maturation levels and subcellular localization with and without drug treatments. Results showed that ACE2 maturation is generally fast and robust, with certain drugs having a mild impact. Out of twenty-three tested compounds, eight significantly reduced ACE2 maturation levels, and three caused approximately 20% decreases. Screening trafficking inhibitors revealed significant effects from most molecular modulators of protein trafficking, mild effects from most proposed COVID-19 drugs, and no effects from statins. This study noted that manipulating ACE2 levels could be beneficial or harmful, depending on the context. Thus, using this approach to uncover leads for COVID-19 therapeutics requires a thorough understanding ACE2's biogenesis and biology.
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Affiliation(s)
- Nesreen F. Alkhofash
- Department of Genetics and Genomics, College of Medicine and Health Sciences, United Arab Emirates University, Al-Ain P.O. Box 15551, United Arab Emirates;
| | - Bassam R. Ali
- Department of Genetics and Genomics, College of Medicine and Health Sciences, United Arab Emirates University, Al-Ain P.O. Box 15551, United Arab Emirates;
- ASPIRE Precision Medicine Research Institute Abu Dhabi, United Arab Emirates University, Al-Ain P.O. Box 15551, United Arab Emirates
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Wan TT, Li Y, Li JX, Xiao X, Liu L, Li HH, Guo SB. ACE2 activation alleviates sepsis-induced cardiomyopathy by promoting MasR-Sirt1-mediated mitochondrial biogenesis. Arch Biochem Biophys 2024; 752:109855. [PMID: 38097099 DOI: 10.1016/j.abb.2023.109855] [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: 08/24/2023] [Revised: 10/17/2023] [Accepted: 12/08/2023] [Indexed: 12/20/2023]
Abstract
Sepsis-induced cardiomyopathy (SIC), caused by a dysregulated host response to infection, is a major contributor to high mortality. Angiotensin-converting enzyme 2 (ACE2), a crucial component of the renin-angiotensin system (RAS), has protective effects against several cardiovascular diseases, such as myocardial infarction and heart failure. However, the role of ACE2 in the pathogenesis of SIC and underlying mechanisms remain unknown. The present study was designed to examine the effects of ACE2 activation or inhibition on SIC in C57BL/6 mice. The ACE2 activator diminazene aceturate (DIZE) and ACE2 inhibitor MLN-4760 were applied for treatment. Myocardial function, inflammatory response, oxidative stress, apoptosis and mitochondrial biogenesis were investigated. Major assays were echocardiography, H&E staining, immunofluorescence staining, DHE staining, TUNEL staining, Western blot, qPCR analysis, ELISA and corresponding kits. We confirmed that ACE2 was markedly downregulated in septic heart tissues. Pharmacological activation of ACE2 by DIZE ameliorated cecal ligation puncture (CLP)-induced mortality, cardiac dysfunction, inflammatory response, oxidative stress and the cardiomyocyte apoptosis by promoting MasR-Sirt1-mediated mitochondrial biogenesis. In contrast, SIC was aggravated via inhibiting MasR-Sirt1-mediated mitochondrial biogenesis by the use of ACE2 inhibitor MLN-4760. Consequently, activation of ACE2 may protect against SIC by promoting MasR-Sirt1-mediated mitochondrial biogenesis.
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Affiliation(s)
- Tian-Tian Wan
- Department of Emergency Medicine, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China; Beijing Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Beijing, China
| | - Ya Li
- Department of Emergency Medicine, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China; Beijing Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Beijing, China
| | - Jia-Xin Li
- Department of Emergency Medicine, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China; Beijing Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Beijing, China
| | - Xue Xiao
- Department of Emergency Medicine, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China; Beijing Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Beijing, China
| | - Lei Liu
- Department of Emergency Medicine, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China; Beijing Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Beijing, China
| | - Hui-Hua Li
- Department of Emergency Medicine, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China; Beijing Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Beijing, China.
| | - Shu-Bin Guo
- Department of Emergency Medicine, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China; Beijing Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Beijing, China.
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Zhang B, Liu S, Sun Y, Xu D. Endosulfan induced kidney cell injury by modulating ACE2 through up-regulating miR-429 in HK-2 cells. Toxicology 2023; 484:153392. [PMID: 36513242 DOI: 10.1016/j.tox.2022.153392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 12/01/2022] [Accepted: 12/06/2022] [Indexed: 12/14/2022]
Abstract
Endosulfan, a typical organochlorine pesticide, is widely used in agricultural countries and was detected in blood samples from the general population. Studies have shown a positive correlation between chronic kidney disease of unknown aetiology (CKDu) and endosulfan. CKDu has become endemic in agricultural countries, with clinical manifestations of tubulointerstitial fibrosis.The goal of this study was to investigate the effects of endosulfan in kidney cell injury in human renal tubular epithelial cells (HK-2), focusing on apoptosis, inflammatory response, and epithelial-mesenchymal transition (EMT). We found that endosulfan induced apoptosis in HK-2 cells by up-regulating the expression of BAX, APAF-1, Caspase-3 and mitochondrial Cytochrome c was released into the cytosol. Endosulfan caused an inflammatory response, showing the increase in the secretion and mRNA expression levels of IL-6/IL-8. Endosulfan triggered EMT, characterized by downregulation of E-cadherin and upregulation of Vimentin. Western blot results showed that p-Smad3 and Smad3 protein expression were elevated while the expression of Smad7 were decreased in endosulfan-exposed groups. Dual luciferase reporter assay confirmed the potential binding capacity of miR-429 to 3'-UTR of ACE2. Endosulfan causes upregulation of miR-429 and downregulation of ACE2 in HK-2 cells. Overexpression of miR-429 or silencing of ACE2 in HK-2 cells caused apoptosis, inflammation and EMT through TGF signaling pathway. These findings suggest that endosulfan can lead to kidney cell injury by modulating ACE2 through up-regulating miR-429, providing new evidence for the pathogenesis of CKDu.
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Affiliation(s)
- Boxiang Zhang
- Institute of Environmental Systems Biology, Environment Science and Engineering College, Dalian Maritime University, Linghai Road 1, Dalian 116026, PR China.
| | - Shiwen Liu
- Institute of Environmental Systems Biology, Environment Science and Engineering College, Dalian Maritime University, Linghai Road 1, Dalian 116026, PR China.
| | - Yeqing Sun
- Institute of Environmental Systems Biology, Environment Science and Engineering College, Dalian Maritime University, Linghai Road 1, Dalian 116026, PR China.
| | - Dan Xu
- Institute of Environmental Systems Biology, Environment Science and Engineering College, Dalian Maritime University, Linghai Road 1, Dalian 116026, PR China.
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Sun X, Deng Y, Ge P, Peng Q, Soufiany I, Zhu L, Duan R. Diminazene Ameliorates Neuroinflammation by Suppression of Astrocytic miRNA-224-5p/NLRP3 Axis in Alzheimer's Disease Model. J Inflamm Res 2023; 16:1639-1652. [PMID: 37092127 PMCID: PMC10120828 DOI: 10.2147/jir.s401385] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Accepted: 04/12/2023] [Indexed: 04/25/2023] Open
Abstract
Purpose ACE2/Ang(1-7)/Mas Receptor, the momentous component of the renin-angiotensin system, has been shown to be involved in Alzheimer's disease (AD). We had previously found that enhancing brain ACE2 activity ameliorated cognitive impairment and attenuated brain neuroinflammation in SAMP8 mice, an animal model of AD. However, the exact mechanism of action of Diminazene (DIZE) has not been revealed. Methods APP/PS1 mice were injected intraperitoneally with DIZE. Cognitive functions, neuronal and synaptic integrity, and inflammation-related markers were assessed by Morris water maze, Nissl staining, Western blotting and ELISA, respectively. Since astrocytes played a crucial role in AD-related neuroinflammation whilst miRNAs were reported to participate in modulating inflammatory responses, astrocytes of APP/PS1 mice were then isolated for high-throughput miRNAs sequencing to identify the most differentially expressed miRNA following DIZE treatment. Afterward, the downstream pathway of this miRNA in the anti-inflammatory action of DIZE was investigated using primary astrocytes. Results The results showed that DIZE alleviated cognitive impairment and neuronal and synaptic damage in APP/PS1 mice. Simultaneously, DIZE suppressed the secretion of pro-inflammatory cytokines and the expression of NLRP3 inflammasome. Importantly, miR-224-5p was significantly up-regulated in the astrocytes of APP/PS1 mice treated by DIZE, and NLRP3 is one of the targets of miR-224-5p. Upregulation of miR-224-5p inhibited the expression of NLRP3 in Aβ1-42-stimulated cells, whereas miR-224-5p downregulation reversed this effect. Furthermore, the inhibition of miR-224-5p could reverse the inhibitory effect of DIZE on astrocytic NLRP3 inflammasome. Conclusion These findings firstly suggested that DIZE could inhibit astrocyte-regulated neuroinflammation via miRNA-224-5p/NLRP3 pathway. Furthermore, our study reveals the underlying mechanism by which DIZE suppresses neuroinflammatory responses in AD mice and uncovers the potential of DIZE in AD treatment.
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Affiliation(s)
- XiaoJin Sun
- Faculty of Pharmacy, Bengbu Medical College, Anhui Engineering Technology Research Center of Biochemical Pharmaceuticals, Bengbu, Anhui, People’s Republic of China
| | - Yang Deng
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, People’s Republic of China
| | - PengXin Ge
- Department of Pharmacy, Anhui Provincial Cancer Hospital, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, People’s Republic of China
| | - Qiang Peng
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, People’s Republic of China
| | - Ismatullah Soufiany
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, People’s Republic of China
| | - Lin Zhu
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, People’s Republic of China
- Correspondence: Lin Zhu; Rui Duan, Email ;
| | - Rui Duan
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, People’s Republic of China
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Tiwari P, Tiwari V, Gupta S, Shukla S, Hanif K. Activation of Angiotensin-converting Enzyme 2 Protects Against Lipopolysaccharide-induced Glial Activation by Modulating Angiotensin-converting Enzyme 2/Angiotensin (1-7)/Mas Receptor Axis. Mol Neurobiol 2023; 60:203-227. [PMID: 36251234 DOI: 10.1007/s12035-022-03061-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 10/03/2022] [Indexed: 12/30/2022]
Abstract
Neuroinflammation is associated with activation of glial cells and pro-inflammatory arm of the central Renin Angiotensin System (RAS) namely, Angiotensin-Converting Enzyme/Angiotensin II/Angiotensin Type 1 Receptor (ACE/Ang II/AT1R) axis. Apart from this, another axis of RAS also exists, Angiotensin-Converting Enzyme 2/Angiotensin (1-7)/Mas Receptor (ACE2/Ang (1-7)/MasR), which counters ACE/Ang II/AT1R axis by showing anti-inflammatory properties. However, the role of ACE2/Ang (1-7)/MasR axis has not been explored in glial activation and neuroinflammation. Hence, the present study tries to unveil the role of ACE2/Ang (1-7)/MasR axis in lipopolysaccharide (LPS)-induced neuroinflammation using diminazene aceturate (DIZE), an ACE2 activator, in astroglial (C6) and microglial (BV2) cells as well as male SD rats. We found that ACE2 activation efficiently prevented LPS-induced changes by decreasing glial activation, inflammatory signaling, cell migration, ROS generation via upregulation of ACE2/Ang (1-7)/MasR signaling. In addition, activation of ACE2/Ang (1-7)/MasR axis by DIZE significantly suppressed the pro-inflammatory ACE/Ang II/AT1R axis by reducing Ang II level in neuroinflammatory conditions induced by LPS in both in vitro and in vivo. ACE2/Ang (1-7)/MasR axis activation further decreased mitochondrial depolarization and apoptosis, hence providing neuroprotection. Furthermore, to validate that the beneficial effect of the ACE2 activator was indeed through MasR, a selective MasR antagonist (A779) was used that significantly blocked the anti-inflammatory effect of ACE2 activation by DIZE. Hence, our study demonstrated that ACE2 activation imparted neuroprotection by enhancing ACE2/Ang (1-7)/MasR signaling which in turn decreased glial activation, neuroinflammation, and apoptosis and improved mitochondrial health.
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Affiliation(s)
- Priya Tiwari
- Division of Pharmacology, CSIR- Central Drug Research Institute, Lucknow-226031, Uttar Pradesh, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| | - Virendra Tiwari
- Division of Neuroscience and Ageing Biology, CSIR- Central Drug Research Institute, Lucknow-226031, Uttar Pradesh, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| | - Shivangi Gupta
- Division of Neuroscience and Ageing Biology, CSIR- Central Drug Research Institute, Lucknow-226031, Uttar Pradesh, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| | - Shubha Shukla
- Division of Neuroscience and Ageing Biology, CSIR- Central Drug Research Institute, Lucknow-226031, Uttar Pradesh, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| | - Kashif Hanif
- Division of Pharmacology, CSIR- Central Drug Research Institute, Lucknow-226031, Uttar Pradesh, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India.
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Peng F, Dai J, Qian Q, Cao X, Wang L, Zhu M, Han S, Liu W, Li Y, Xue T, Chen X, Yang X, Wang J, Wang H, Li T, Ding C. Serum metabolic profiling of coal worker's pneumoconiosis using untargeted lipidomics. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:85444-85453. [PMID: 35796929 DOI: 10.1007/s11356-022-21905-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 07/04/2022] [Indexed: 06/15/2023]
Abstract
In this work, untargeted lipidomics was employed to analyze the effects of coal dust exposure on serum metabolite profiles. Furthermore, the potential of differential metabolites as novel biomarkers for diagnosis was investigated by binary logistic classification model. Nineteen differential metabolites were found among the three groups. The compounds were enriched in pathways associated with linoleic acid metabolism and pyrimidine metabolism. Fifty-three differential metabolites were found in coal dust-exposed people and CWP patients, and they were mainly enriched in glycerophospholipid metabolism. Three differential metabolites were correlated with lung function values. The diagnostic model, composed of lysoPI (16:0/0:0), bilirubin, and lysoPC (24:1/0:0), showed strong discrimination ability between dust-exposed people and CWP patients. The sensitivity, specificity, and AUC values of the model were 0.869, 0.600, and 0.750, respectively. The results suggest that coal worker's pneumoconiosis causes abnormal lipid metabolism in the body. A diagnostic model may aid current CWP diagnostic methods, and lysoPI (16:0/0:0), bilirubin, and lysoPC (24:1/0:0) can be used as potential CWP biomarkers. Further study is warranted to validate the findings in larger populations.
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Affiliation(s)
- Fangda Peng
- National Center for Occupational Safety and Health, NHC, Beijing, 102308, China
- NHC Key Laboratary for Engineering Control of Dust Hazard, Beijing, 102308, China
| | - Jing Dai
- National Center for Occupational Safety and Health, NHC, Beijing, 102308, China
- NHC Key Laboratary for Engineering Control of Dust Hazard, Beijing, 102308, China
| | - Qingjun Qian
- National Center for Occupational Safety and Health, NHC, Beijing, 102308, China
- NHC Key Laboratary for Engineering Control of Dust Hazard, Beijing, 102308, China
| | - Xiangfu Cao
- National Center for Occupational Safety and Health, NHC, Beijing, 102308, China
- NHC Key Laboratary for Engineering Control of Dust Hazard, Beijing, 102308, China
| | - Lifang Wang
- National Center for Occupational Safety and Health, NHC, Beijing, 102308, China
- NHC Key Laboratary for Engineering Control of Dust Hazard, Beijing, 102308, China
| | - Min Zhu
- National Center for Occupational Safety and Health, NHC, Beijing, 102308, China
- NHC Key Laboratary for Engineering Control of Dust Hazard, Beijing, 102308, China
| | - Shujin Han
- National Center for Occupational Safety and Health, NHC, Beijing, 102308, China
- NHC Key Laboratary for Engineering Control of Dust Hazard, Beijing, 102308, China
| | - Wubin Liu
- National Center for Occupational Safety and Health, NHC, Beijing, 102308, China
- NHC Key Laboratary for Engineering Control of Dust Hazard, Beijing, 102308, China
| | - Yan Li
- National Center for Occupational Safety and Health, NHC, Beijing, 102308, China
- NHC Key Laboratary for Engineering Control of Dust Hazard, Beijing, 102308, China
| | - Teng Xue
- ZhongYuan BoRui Biotech (Zhuhai Hengqin) Co., Ltd, Zhuhai, 519031, China
| | - Xianyang Chen
- ZhongYuan BoRui Biotech (Zhuhai Hengqin) Co., Ltd, Zhuhai, 519031, China
| | - Xiaoli Yang
- General Hospital of Jingmei Group, Beijing, 102308, China
| | - Jiaolei Wang
- General Hospital of Jingmei Group, Beijing, 102308, China
| | - Huanqiang Wang
- National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing, 100050, China
| | - Tao Li
- National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing, 100050, China
| | - Chunguang Ding
- National Center for Occupational Safety and Health, NHC, Beijing, 102308, China.
- NHC Key Laboratary for Engineering Control of Dust Hazard, Beijing, 102308, China.
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Thalidomide Alleviates Pulmonary Fibrosis Induced by Silica in Mice by Inhibiting ER Stress and the TLR4-NF-κB Pathway. Int J Mol Sci 2022; 23:ijms23105656. [PMID: 35628464 PMCID: PMC9144898 DOI: 10.3390/ijms23105656] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Revised: 05/16/2022] [Accepted: 05/17/2022] [Indexed: 02/04/2023] Open
Abstract
Silicosis is the most prevalent occupational disease in China. It is a form of pulmonary fibrosis caused by the inhalation of silicon particles. As there is no cure for the potentially lethal and progressive condition, the treatment of silicotic fibrosis is an important and difficult problem to address. Thalidomide, a drug with anti-inflammatory and immunoregulatory properties, has been reported to have lung-protective effects. The purpose of this study was to observe the therapeutic effect of thalidomide on silicotic mice and to determine the protective mechanism. By using silicotic mice models and MH-S cells, we found the expression of endoplasmic reticulum stress (ER stress) and Toll-like receptor 4 (TLR4)-nuclear factor kappa-B (NF-κB) pathway as well as inflammation-related factors were upregulated in the macrophages of silicotic mice. The same indexes were detected in silica-stimulated MH-S cells, and the results were consistent with those in vivo. That is, silica activated ER stress and the TLR4-NF-κB pathway as well as the inflammatory response in vitro. Treating both silicotic mice and silica-stimulated MH-S cells with thalidomide inhibited ER stress and the TLR4-NF-κB pathway as well as the inflammatory response. The present study demonstrates thalidomide as a potential therapeutic agent against silicosis.
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Gupta D, Kumar A, Mandloi A, Shenoy V. Renin angiotensin aldosterone system in pulmonary fibrosis: Pathogenesis to therapeutic possibilities. Pharmacol Res 2021; 174:105924. [PMID: 34607005 DOI: 10.1016/j.phrs.2021.105924] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Revised: 09/21/2021] [Accepted: 09/29/2021] [Indexed: 01/12/2023]
Abstract
Pulmonary fibrosis is a devastating lung disease with multifactorial etiology characterized by alveolar injury, fibroblast proliferation and excessive deposition of extracellular matrix proteins, which progressively results in respiratory failure and death. Accumulating evidence from experimental and clinical studies supports a central role of the renin angiotensin aldosterone system (RAAS) in the pathogenesis and progression of idiopathic pulmonary fibrosis. Angiotensin II (Ang II), a key vasoactive peptide of the RAAS mediates pro-inflammatory and pro-fibrotic effects on the lungs, adversely affecting organ function. Recent years have witnessed seminal discoveries in the field of RAAS. Identification of new enzymes, peptides and receptors has led to the development of several novel concepts. Of particular interest is the establishment of a protective axis of the RAAS comprising of Angiotensin converting enzyme 2 (ACE2), Angiotensin-(1-7) [Ang-(1-7)], and the Mas receptor (the ACE2/Ang-(1-7)/Mas axis), and the discovery of a functional role for the Angiotensin type 2 (AT2) receptor. Herein, we will review our current understanding of the role of RAAS in lung fibrogenesis, provide evidence on the anti-fibrotic actions of the newly recognized RAAS components (the ACE2/Ang-(1-7)/Mas axis and AT2 receptor), discuss potential strategies and translational efforts to convert this new knowledge into effective therapeutics for PF.
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Affiliation(s)
- Dipankar Gupta
- Congenital Heart Center, Department of Pediatrics, University of Florida, College of Medicine, Gainesville, FL, USA
| | - Ashok Kumar
- Department of Internal Medicine, Kansas University Medical Center, Kansas City, KS, USA
| | - Avinash Mandloi
- College of Pharmacy, VNS Group of Institutions, Bhopal, India
| | - Vinayak Shenoy
- College of Pharmacy, California Health Sciences University, Clovis, CA, USA.
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OC-STAMP Overexpression Drives Lung Alveolar Epithelial Cell Type II Senescence in Silicosis. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:4158495. [PMID: 34426759 PMCID: PMC8380176 DOI: 10.1155/2021/4158495] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Accepted: 07/27/2021] [Indexed: 02/05/2023]
Abstract
Cellular senescence has been considered an important driver of many chronic lung diseases. However, the specific mechanism of cellular senescence in silicosis is still unknown. In the present study, silicotic rats and osteoclast stimulatory transmembrane protein (Ocstamp) overexpression of MLE-12 cells were used to explore the mechanism of OC-STAMP in cellular senescence in alveolar epithelial cell type II (AEC2). We found an increasing level of OC-STAMP in AEC2 of silicotic rats. Overexpression of Ocstamp in MLE-12 cells promoted epithelial-mesenchymal transition (EMT), endoplasmic reticulum (ER) stress, and cellular senescence. Myosin heavy chain 9 (MYH9) was a potential interacting protein of OC-STAMP. Knockdown of Ocstamp or Myh9 inhibited cellular senescence in MLE-12 cells transfected with pcmv6-Ocstamp. Treatment with 4-phenylbutyrate (4-PBA) to inhibit ER stress also attenuated cellular senescence in vitro or in vivo. In conclusion, OC-STAMP promotes cellular senescence in AEC2 in silicosis.
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Ziaja M, Urbanek KA, Kowalska K, Piastowska-Ciesielska AW. Angiotensin II and Angiotensin Receptors 1 and 2-Multifunctional System in Cells Biology, What Do We Know? Cells 2021; 10:cells10020381. [PMID: 33673178 PMCID: PMC7917773 DOI: 10.3390/cells10020381] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 02/05/2021] [Accepted: 02/09/2021] [Indexed: 12/13/2022] Open
Abstract
For years, the renin-angiotensin system (RAS) has been perceived as a system whose role is to primarily modulate the functioning of the cardiovascular system. Years of research into the role of RAS have provided the necessary data to confirm that the role of RAS is very complex and not limited to the cardiovascular system. The presence of individual elements of the renin-angiotensin (RA) system allows to control many processes, ranging from the memorization to pro-cancer processes. Maintaining the proportions between the individual axes of the RA system allows for achieving a balance, often called homeostasis. Thus, any disturbance in the expression or activity of individual RAS elements leads to pathophysiological processes.
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Li S, Li Y, Zhang Y, Li S, Zhang M, Jin F, Wei Z, Yang Y, Gao X, Mao N, Ge X, Xu H, Yang F. N-Acetyl-Seryl-Asparyl-Lysyl-Proline regulates lung renin angiotensin system to inhibit epithelial-mesenchymal transition in silicotic mice. Toxicol Appl Pharmacol 2020; 408:115255. [PMID: 33007385 DOI: 10.1016/j.taap.2020.115255] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 09/22/2020] [Accepted: 09/25/2020] [Indexed: 12/16/2022]
Abstract
Silicosis is a major public health concern with various contributing factors. The renin-angiotensin system (RAS)is a critical regulator in the pathogenesis of this disease. We focused on two key RAS enzymes, angiotensin-converting enzyme (ACE) and angiotensin-converting enzyme 2 (ACE2), to elucidate the activation of the ACE-angiotensin II (Ang II)-angiotensin II receptor 1 (AT1) axis and the inhibition of the ACE2-angiotensin-(1-7) [Ang-(1-7)]-Mas receptor axis in C57BL/6mice following SiO2 treatment. Silica exposure caused nodule formation, pulmonary interstitial fibrosis, epithelial-mesenchymal transition (EMT), abnormal deposition of extracellular matrix, and impaired lung function in mice. These effects were attenuated by the inhibition of ACE (captopril), blockade of the AT1(losartan), or systemic knockdown of the Ace gene. These effects were exacerbated by the inhibition of ACE2 (MLN-4760), blockade of the Mas (A779), or knockdown of the Ace2 gene. N-Acetyl-Seryl-Asparyl-Lysyl-Proline (Ac-SDKP), an anti-fibrotic peptide, ameliorated the silica-exposure-induced pathological changes by targeting the RAS system by activating the protective ACE2-Ang-(1-7)-Mas axis and inhibiting the deleterious ACE-Ang II-AT1 axis, thereby exerting a protective effect. This was confirmed in mouse lung type II epithelial cells (MLE-12) pretreated with Ang II and/or gene silencing separately targeting Ace and Ace2.The effects of Ac-SDKP were similar to those produced by Ace gene silencing and were partly attenuated by Ace2 deficiency. These findings suggested that RAS plays critical roles in the pathomechanism of silicosis fibrosis and that Ac-SDKP regulates lung RAS to inhibit EMT in silicotic mice and MLE-12 cells.
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Affiliation(s)
- Shumin Li
- School of Public Health, North China University of Science and Technology, Tangshan 063210, Hebei, China; School of Basic Medical Sciences, North China University of Science and Technology, Tangshan 063210, Hebei, China
| | - Yaqian Li
- School of Basic Medical Sciences, North China University of Science and Technology, Tangshan 063210, Hebei, China; Hebei Key Laboratory for Organ Fibrosis, North China University of Science and Technology, Tangshan 063210, Hebei, China
| | - Yi Zhang
- School of Basic Medical Sciences, North China University of Science and Technology, Tangshan 063210, Hebei, China
| | - Shifeng Li
- School of Public Health, North China University of Science and Technology, Tangshan 063210, Hebei, China; Hebei Key Laboratory for Organ Fibrosis, North China University of Science and Technology, Tangshan 063210, Hebei, China
| | - Min Zhang
- Hebei Key Laboratory for Organ Fibrosis, North China University of Science and Technology, Tangshan 063210, Hebei, China
| | - Fuyu Jin
- School of Basic Medical Sciences, North China University of Science and Technology, Tangshan 063210, Hebei, China; Hebei Key Laboratory for Organ Fibrosis, North China University of Science and Technology, Tangshan 063210, Hebei, China
| | - Zhongqiu Wei
- School of Basic Medical Sciences, North China University of Science and Technology, Tangshan 063210, Hebei, China
| | - Yi Yang
- School of Basic Medical Sciences, North China University of Science and Technology, Tangshan 063210, Hebei, China
| | - Xuemin Gao
- Hebei Key Laboratory for Organ Fibrosis, North China University of Science and Technology, Tangshan 063210, Hebei, China
| | - Na Mao
- School of Public Health, North China University of Science and Technology, Tangshan 063210, Hebei, China
| | - Xingchen Ge
- Hebei Key Laboratory for Organ Fibrosis, North China University of Science and Technology, Tangshan 063210, Hebei, China
| | - Hong Xu
- School of Public Health, North China University of Science and Technology, Tangshan 063210, Hebei, China; Hebei Key Laboratory for Organ Fibrosis, North China University of Science and Technology, Tangshan 063210, Hebei, China
| | - Fang Yang
- School of Public Health, North China University of Science and Technology, Tangshan 063210, Hebei, China; Hebei Key Laboratory for Organ Fibrosis, North China University of Science and Technology, Tangshan 063210, Hebei, China.
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