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Abstract
Coronary atherosclerosis is a chronic inflammatory disease that can lead to varying degrees of blood flow obstruction and a common pathophysiological basis of cardiovascular disease. Inflammatory factors run through the whole process of atherosclerotic lesions. Macrophages, T cells, and neutrophils play important roles in the process of atherosclerotic inflammation. Considering the evolutionary characteristics, atherosclerosis can be divided into different stages as early atherosclerotic plaque, plaque formation stage, and plaque rupture stage. In this paper, the changes in inflammatory cells at different stages of lesions and their related mechanisms are discussed, which can provide new insights from a clinical to bench perspective for atherosclerosis me chanism.
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152
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Peng C, Tu G, Yu L, Wu P, Zhang X, Li Z, Li Z, Yu X. Murine Chronic Pancreatitis Model Induced by Partial Ligation of the Pancreatic Duct Encapsulates the Profile of Macrophage in Human Chronic Pancreatitis. Front Immunol 2022; 13:840887. [PMID: 35432336 PMCID: PMC9011002 DOI: 10.3389/fimmu.2022.840887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Accepted: 03/14/2022] [Indexed: 11/13/2022] Open
Abstract
Immune responses are an integral part of the pathogenesis of pancreatitis. Studies applying the mouse model of pancreatitis induced by partial ligation of the pancreatic duct to explore the pancreatic immune microenvironment are still lacking. The aim of the present study is to explore the macrophage profile and associated regulatory mechanisms in mouse pancreatitis, as well as the correlation with human chronic pancreatitis (CP). In the present study, the mouse model of pancreatitis was induced by partial ligation of the pancreatic duct. Mice in the acute phase were sacrificed at 0, 4, 8, 16, 32, 72 h after ligation, while mice in the chronic phase were sacrificed at 7, 14, 21, 28 days after ligation. We found that the pancreatic pathological score, expression of TNF-α and IL-6 were elevated over time and peaked at 72h in the acute phase, while in the chronic phase, the degree of pancreatic fibrosis peaked at day 21 after ligation. Pancreatic M1 macrophages and pyroptotic macrophages showed a decreasing trend over time, whereas M2 macrophages gradually rose and peaked at day 21. IL-4 is involved in the development of CP and is mainly derived from pancreatic stellate cells (PSCs). The murine pancreatitis model constructed by partial ligation of the pancreatic duct, especially the CP model, can ideally simulate human CP caused by obstructive etiologies in terms of morphological alterations and immune microenvironment characteristics.
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Affiliation(s)
- Cheng Peng
- Department of Hepatopancreatobiliary Surgery, Third Xiangya Hospital, Central South University, Changsha, China
| | - Guangping Tu
- Department of Hepatopancreatobiliary Surgery, Third Xiangya Hospital, Central South University, Changsha, China
| | - Li Yu
- Department of Radiology, Third Xiangya Hospital, Central South University, Changsha, China
| | - Peng Wu
- Department of Hepatopancreatobiliary Surgery, Third Xiangya Hospital, Central South University, Changsha, China
| | - Xianlin Zhang
- Department of General Surgery, Renhe Hospital, Three Gorges University, Yichang, China
| | - Zheng Li
- Department of General Surgery, Renhe Hospital, Three Gorges University, Yichang, China
| | - Zhiqiang Li
- Department of Hepatopancreatobiliary Surgery, Third Xiangya Hospital, Central South University, Changsha, China
- *Correspondence: Xiao Yu, ; Zhiqiang Li,
| | - Xiao Yu
- Department of Hepatopancreatobiliary Surgery, Third Xiangya Hospital, Central South University, Changsha, China
- *Correspondence: Xiao Yu, ; Zhiqiang Li,
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153
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Li XY, Wang YJ, Chen S, Pan LH, Li QM, Luo JP, Zha XQ. Laminaria japonica Polysaccharide Suppresses Atherosclerosis via Regulating Autophagy-Mediated Macrophage Polarization. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:3633-3643. [PMID: 35167294 DOI: 10.1021/acs.jafc.1c07483] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The present work aimed to explore the effect and underlying mechanism of a homogeneous Laminaria japonica polysaccharide (LJP61A) on macrophage polarization in high-fat-diet-fed LDLr-/- mice and Ox-LDL-induced macrophages. Results showed that LJP61A remarkably reduced the lesion burden in atherosclerotic mice, alleviated lipid deposition in Ox-LDL-stimulated macrophages, decreased the expression of M1 macrophage markers, and increased the expression of M2 macrophage markers, thus reducing the M1/M2 macrophage phenotype ratio. Meanwhile, the autophagic flux of macrophages was enhanced by LJP61A treatment in vitro and in vivo. 3-Methyladenine is an autophagic inhibitor. As expected, this inhibitor blocked the effects of LJP61A on macrophage polarization. SIRT1 and FoxO1 are two key upstream genes that control the autophagy behavior. We also found that LJP61A significantly up-regulated the expression of SIRT1 and FoxO1. However, these effects of LJP61A were abolished by the SIRT1 siRNA and FoxO1 inhibitor AS1842856. These results suggested that LJP61A reduced atherosclerosis in HFD-induced LDLr-/- mice via regulating autophagy-mediated macrophage polarization.
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Affiliation(s)
- Xue-Ying Li
- Engineering Research Centre of Bioprocess of Ministry of Education, Hefei University of Technology, No 193 Tunxi Road, Hefei 230009, People's Republic of China
- School of Food and Biological Engineering, Hefei University of Technology, No 193 Tunxi Road, Hefei 230009, People's Republic of China
| | - Yu-Jing Wang
- Engineering Research Centre of Bioprocess of Ministry of Education, Hefei University of Technology, No 193 Tunxi Road, Hefei 230009, People's Republic of China
- School of Food and Biological Engineering, Hefei University of Technology, No 193 Tunxi Road, Hefei 230009, People's Republic of China
| | - Shun Chen
- Engineering Research Centre of Bioprocess of Ministry of Education, Hefei University of Technology, No 193 Tunxi Road, Hefei 230009, People's Republic of China
- School of Food and Biological Engineering, Hefei University of Technology, No 193 Tunxi Road, Hefei 230009, People's Republic of China
| | - Li-Hua Pan
- Engineering Research Centre of Bioprocess of Ministry of Education, Hefei University of Technology, No 193 Tunxi Road, Hefei 230009, People's Republic of China
- School of Food and Biological Engineering, Hefei University of Technology, No 193 Tunxi Road, Hefei 230009, People's Republic of China
| | - Qiang-Ming Li
- Engineering Research Centre of Bioprocess of Ministry of Education, Hefei University of Technology, No 193 Tunxi Road, Hefei 230009, People's Republic of China
- School of Food and Biological Engineering, Hefei University of Technology, No 193 Tunxi Road, Hefei 230009, People's Republic of China
| | - Jian-Ping Luo
- Engineering Research Centre of Bioprocess of Ministry of Education, Hefei University of Technology, No 193 Tunxi Road, Hefei 230009, People's Republic of China
- School of Food and Biological Engineering, Hefei University of Technology, No 193 Tunxi Road, Hefei 230009, People's Republic of China
| | - Xue-Qiang Zha
- Engineering Research Centre of Bioprocess of Ministry of Education, Hefei University of Technology, No 193 Tunxi Road, Hefei 230009, People's Republic of China
- School of Food and Biological Engineering, Hefei University of Technology, No 193 Tunxi Road, Hefei 230009, People's Republic of China
- Key Laboratory of Metabolism and Regulation for Major Disease of Anhui Higher Education Institutes, Hefei University of Technology, No 193 Tunxi Road, Hefei 230009, People's Republic of China
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154
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Farias-Itao DS, Pasqualucci CA, de Andrade RA, da Silva LFF, Yahagi-Estevam M, Lage SHG, Leite REP, Campo AB, Suemoto CK. Macrophage Polarization in the Perivascular Fat Was Associated With Coronary Atherosclerosis. J Am Heart Assoc 2022; 11:e023274. [PMID: 35229617 PMCID: PMC9075275 DOI: 10.1161/jaha.121.023274] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Background Inflammation of the perivascular adipose tissue (PvAT) may be related to atherosclerosis; however, the association of polarized macrophages in the pericoronary PvAT with measurements of atherosclerosis components in humans has not been fully investigated. Methods and Results Coronary arteries were dissected with surrounding PvAT. We evaluated the percentage of arterial obstruction, intima-media thickness, fibrous cap thickness, plaque components, and the number of vasa vasorum. The number of proinflammatory (M1) and anti-inflammatory (M2) macrophages in the periplaque and control PvAT were evaluated using immunohistochemistry. Regression models adjusted for sociodemographic and clinical variables were used. In 319 segments from 82 individuals, we found a correlation of the M1/M2 macrophage density ratio with an increase in arterial obstruction (P=0.02) and lipid content (P=0.01), and a decrease in smooth muscle cells (P=0.02). M1 and the ratio of M1/M2 macrophages were associated with an increased risk of thrombosis (P=0.03). In plaques with thrombosis, M1 macrophages were correlated with a decrease in fibrous cap thickness (P=0.006), an increase in lipid content (P=0.008), and the number of vasa vasorum in the adventitia layer (P=0.001). M2 macrophages were correlated with increased arterial obstruction (P=0.01), calcification (P=0.02), necrosis (P=0.03) only in plaques without thrombosis, and decrease of the number of vasa vasorum in plaques with thrombosis (P=0.003). Conclusions M1 macrophages in the periplaque PvAT were associated with a higher risk of coronary thrombosis and were correlated with histological components of plaque progression and destabilization. M2 macrophages were correlated with plaque size, calcification, necrotic content, and a decrease in the number of vasa vasorum in the adventitia layer.
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Affiliation(s)
| | | | - Renato Araújo de Andrade
- Control and Automation Engineering Federal Institute of Education, Science and Technology of Sao Paulo Sao Paulo Brazil
| | | | | | | | | | - Alexandre Brincalepe Campo
- Control and Automation Engineering Federal Institute of Education, Science and Technology of Sao Paulo Sao Paulo Brazil
| | - Claudia Kimie Suemoto
- Department of Pathology University of Sao Paulo Medical School Sao Paulo Brazil.,Discipline of Geriatrics University of Sao Paulo Medical School Sao Paulo Brazil
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155
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Liu J, Sun Q, Sun M, Lin L, Ren X, Li T, Xu Q, Sun Z, Duan J. Melatonin alleviates PM 2.5-triggered macrophage M1 polarization and atherosclerosis via regulating NOX2-mediated oxidative stress homeostasis. Free Radic Biol Med 2022; 181:166-179. [PMID: 35149217 DOI: 10.1016/j.freeradbiomed.2022.02.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Revised: 02/06/2022] [Accepted: 02/07/2022] [Indexed: 12/20/2022]
Abstract
It is reported that oxidative stress homeostasis was involved in PM2.5-induced foam cell formation and progression of atherosclerosis, but the exact molecular mechanism is still unclear. Melatonin is an effective antioxidant that could reverse the cardiopulmonary injury. The main purpose of this study is to investigate the latent mechanism of PM2.5-triggered atherosclerosis development and the protective role of melatonin administration. Vascular Doppler ultrasound showed that PM2.5 exposure reduced aortic elasticity in ApoE-/- mice. Meanwhile, blood biochemical and pathological analysis demonstrated that PM2.5 exposure caused dyslipidemia, elicited oxidative damage of aorta and was accompanied by an increase in atherosclerotic plaque area; while the melatonin administration could effectively alleviate PM2.5-induced macrophage M1 polarization and atherosclerosis in mice. Further investigation verified that NADPH oxidase 2 (NOX2) and mitochondria are two prominent sources of PM2.5-induced ROS production in vascular macrophages. Whereas, the combined use of two ROS-specific inhibitors and adopted with melatonin markedly rescued PM2.5-triggered macrophage M1 polarization and foam cell formation by inhibiting NOX2-mediated crosstalk of Keap1/Nrf2/NF-κB and TLR4/TRAF6/NF-κB signaling pathways. Our results demonstrated that NOX2-mediated oxidative stress homeostasis is critical for PM2.5-induced atherosclerosis and melatonin might be a potential treatment for air pollution-related cardiovascular diseases.
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Affiliation(s)
- Jiangyan Liu
- Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, 100069, PR China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, PR China
| | - Qinglin Sun
- Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, 100069, PR China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, PR China
| | - Mengqi Sun
- Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, 100069, PR China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, PR China
| | - Lisen Lin
- Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, 100069, PR China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, PR China
| | - Xiaoke Ren
- Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, 100069, PR China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, PR China
| | - Tianyu Li
- Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, 100069, PR China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, PR China
| | - Qing Xu
- Core Facilities for Electrophysiology, Core Facilities Center, Capital Medical University, Beijing, 100069, PR China
| | - Zhiwei Sun
- Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, 100069, PR China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, PR China
| | - Junchao Duan
- Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, 100069, PR China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, PR China.
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156
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Ahamada MM, Jia Y, Wu X. Macrophage Polarization and Plasticity in Systemic Lupus Erythematosus. Front Immunol 2022; 12:734008. [PMID: 34987500 PMCID: PMC8721097 DOI: 10.3389/fimmu.2021.734008] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 11/08/2021] [Indexed: 12/14/2022] Open
Abstract
Systemic lupus erythematosus (SLE) is an autoimmune disease that attacks almost every organ. The condition mostly happens to adults but is also found in children, and the latter have the most severe manifestations. Among adults, females, especially non-Caucasian, are mostly affected. Even if the etiology of SLE remains unclear, studies show a close relation between this disease and both genetics and environment. Despite the large number of published articles about SLE, we still do not have a clear picture of its pathogenesis, and no specific drug has been found to treat this condition effectively. The implication of macrophages in SLE development is gaining ground, and studying it could answer these gaps. Indeed, both in vivo and in vitro studies increasingly report a strong link between this disease and macrophages. Hence, this review aims to explore the role of macrophages polarization and plasticity in SLE development. Understanding this role is of paramount importance because in-depth knowledge of the connection between macrophages and this systemic disease could clarify its pathogenesis and provide a foundation for macrophage-centered therapeutic approaches.
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Affiliation(s)
- Mariame Mohamed Ahamada
- Department of Pediatrics, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Yang Jia
- Department of Pediatrics, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Xiaochuan Wu
- Department of Pediatrics, The Second Xiangya Hospital, Central South University, Changsha, China
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157
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Dasagrandhi D, Muthuswamy A, Swaminathan JK. Atherosclerosis: nexus of vascular dynamics and cellular cross talks. Mol Cell Biochem 2022; 477:571-584. [PMID: 34845570 DOI: 10.1007/s11010-021-04307-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Accepted: 11/17/2021] [Indexed: 01/11/2023]
Abstract
Cardiovascular diseases (CVDs) are the foremost cause of mortality worldwide. Atherosclerosis is the underlying pathology behind CVDs. Atherosclerosis is manifested predominantly by lipid deposition, plaque formation, and inflammation in vascular intima. Initiation and progression of plaque require many years. With aging, atherosclerotic plaques become vulnerable. Localization of these plaques in the coronary artery leads to myocardial infarction. A complete understanding of the pathophysiology of this multifaceted disease is necessary to achieve the clinical goal to provide early diagnosis and the best therapeutics. The triggering factors of atherosclerosis are biomechanical forces, hyperlipidemia, and chronic inflammatory response. The current review focuses on crucial determinants involved in the disease, such as location, hemodynamic factors, oxidation of low-density lipoproteins, and the role of endothelial cells, vascular smooth muscle cells, and immune cells, and better therapeutic targets.
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Affiliation(s)
- Divya Dasagrandhi
- Drug Discovery and Molecular Cardiology Laboratory, Department of Bioinformatics, Bharathidasan University, Tiruchirappalli, 620024, India
| | - Anusuyadevi Muthuswamy
- Molecular Neurogerontology Laboratory, Department of Biochemistry, Bharathidasan University, Tiruchirappalli, 620024, India
| | - Jayachandran Kesavan Swaminathan
- Drug Discovery and Molecular Cardiology Laboratory, Department of Bioinformatics, Bharathidasan University, Tiruchirappalli, 620024, India.
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158
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Tevini J, Eder SK, Huber-Schönauer U, Niederseer D, Strebinger G, Gostner JM, Aigner E, Datz C, Felder TK. Changing Metabolic Patterns along the Colorectal Adenoma–Carcinoma Sequence. J Clin Med 2022; 11:jcm11030721. [PMID: 35160173 PMCID: PMC8836789 DOI: 10.3390/jcm11030721] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 01/18/2022] [Accepted: 01/27/2022] [Indexed: 02/06/2023] Open
Abstract
Colorectal cancer (CRC) is a major public health burden and one of the leading causes of cancer-related deaths worldwide. Screening programs facilitate early diagnosis and can help to reduce poor outcomes. Serum metabolomics can extract vital molecular information that may increase the sensitivity and specificity of colonoscopy in combination with histopathological examination. The present study identifies serum metabolite patterns of treatment-naïve patients, diagnosed with either advanced adenoma (AA) or CRC in colonoscopy screenings, in the framework of the SAKKOPI (Salzburg Colon Cancer Prevention Initiative) program. We used a targeted flow injection analysis and liquid chromatography-tandem mass spectrometry metabolomics approach (FIA- and LC-MS/MS) to characterise the serum metabolomes of an initial screening cohort and two validation cohorts (in total 66 CRC, 76 AA and 93 controls). The lipidome was significantly perturbed, with a proportion of lipid species being downregulated in CRC patients, as compared to AA and controls. The predominant alterations observed were in the levels of lyso-lipids, glycerophosphocholines and acylcarnitines, but additionally, variations in the quantity of hydroxylated sphingolipids could be detected. Changed amino acid metabolism was restricted mainly to metabolites of the arginine/dimethylarginine/NO synthase pathway. The identified metabolic divergences observed in CRC set the foundation for mechanistic studies to characterise biochemical pathways that become deregulated during progression through the adenoma to carcinoma sequence and highlight the key importance of lipid metabolites. Biomarkers related to these pathways could improve the sensitivity and specificity of diagnosis, as well as the monitoring of therapies.
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Affiliation(s)
- Julia Tevini
- Department of Laboratory Medicine, Paracelsus Medical University, 5020 Salzburg, Austria;
| | - Sebastian K. Eder
- First Department of Medicine, Paracelsus Medical University, 5020 Salzburg, Austria; (S.K.E.); (E.A.)
- Department of Pediatrics and Adolescent Medicine, St. Anna Children’s Hospital, Medical University of Vienna, 1090 Vienna, Austria
| | - Ursula Huber-Schönauer
- Department of Internal Medicine, Hospital Oberndorf, Teaching Hospital of the Paracelsus Medical University Salzburg, 5110 Oberndorf, Austria; (U.H.-S.); (G.S.)
| | - David Niederseer
- Department of Cardiology, University Heart Center Zurich, University Hospital Zurich, University of Zurich, 8091 Zurich, Switzerland;
| | - Georg Strebinger
- Department of Internal Medicine, Hospital Oberndorf, Teaching Hospital of the Paracelsus Medical University Salzburg, 5110 Oberndorf, Austria; (U.H.-S.); (G.S.)
| | - Johanna M. Gostner
- Institute of Medical Biochemistry, Innsbruck Medical University, 6020 Innsbruck, Austria;
| | - Elmar Aigner
- First Department of Medicine, Paracelsus Medical University, 5020 Salzburg, Austria; (S.K.E.); (E.A.)
| | - Christian Datz
- Department of Internal Medicine, Hospital Oberndorf, Teaching Hospital of the Paracelsus Medical University Salzburg, 5110 Oberndorf, Austria; (U.H.-S.); (G.S.)
- Correspondence: (C.D.); (T.K.F.); Tel.: +43-5-7255-58126 (T.K.F.)
| | - Thomas K. Felder
- Department of Laboratory Medicine, Paracelsus Medical University, 5020 Salzburg, Austria;
- Correspondence: (C.D.); (T.K.F.); Tel.: +43-5-7255-58126 (T.K.F.)
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159
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Advanced Glycation End Products Induce Atherosclerosis via RAGE/TLR4 Signaling Mediated-M1 Macrophage Polarization-Dependent Vascular Smooth Muscle Cell Phenotypic Conversion. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:9763377. [PMID: 35069982 PMCID: PMC8776434 DOI: 10.1155/2022/9763377] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 12/05/2021] [Accepted: 12/08/2021] [Indexed: 12/17/2022]
Abstract
Objective. The objective of this study was to investigate the involved mechanisms of advanced glycation end product- (AGE-) exacerbated atherosclerosis (AS). Methods. Toll-like receptor 4 (TLR4) inhibitor was administrated to type 2 diabetes mellitus (T2DM) AS rats. Atherosclerotic plaque, M1 macrophage infiltration, and VSMCs phenotypes were evaluated. AGE-exposed primary macrophages were treated with specific siRNAs knocking down receptor for AGEs (RAGE) and TLR4. Phenotypes of M1 macrophage and VSMCs were identified by fluorescent stains. Contact and noncontact coculture models were established. VSMCs and macrophages were cocultured in these models. ELISA was used to detect inflammatory cytokine concentrations. Relative mRNA expression levels were determined by real-time PCR. Relative protein expression and phosphorylation levels were evaluated by Western blots assays. Results. TLR4 inhibitor treatment significantly reduced arterial stenosis, infiltration of M1 polarized macrophages, and contractile-to-synthetic phenotype conversion of VSMCs in DM AS animals. RAGE and TLR4 silencing dramatically reduced AGE-induced macrophage M1 polarization, inflammatory cytokine secretion, and RAGE/TLR4/forkhead box protein C2 (FOXC2)/signaling which inhibited delta-like ligand 4 (Dll4) expression in macrophages. AGE-treated macrophages induced VSMC phenotypic conversion via activating Notch pathway in a contact coculture model rather than a noncontact model. The VSMC phenotypic conversion induction capability of macrophages was attenuated by RAGE and TLR4 silencing. Conclusions. AGEs induced activation of RAGE/TLR4/FOXC2 signaling, which featured macrophage with Dll4 high expression during M1 polarization. These macrophages promoted contractile-synthetic phenotypic conversion of VSMCs through the Dll4/Notch pathway after direct cell-to-cell contacts.
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160
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Li M, Jiao Q, Xin W, Niu S, Liu M, Song Y, Wang Z, Yang X, Liang D. The Emerging Role of Rho Guanine Nucleotide Exchange Factors in Cardiovascular Disorders: Insights Into Atherosclerosis: A Mini Review. Front Cardiovasc Med 2022; 8:782098. [PMID: 35047576 PMCID: PMC8761945 DOI: 10.3389/fcvm.2021.782098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Accepted: 11/18/2021] [Indexed: 11/13/2022] Open
Abstract
Atherosclerosis is a leading cause of cardiovascular disease, and atherosclerotic cardiovascular disease accounts for one-third of global deaths. However, the mechanism of atherosclerosis is not fully understood. It is well-known that the Rho GTPase family, especially Rho A, plays a vital role in the development and progression of arteriosclerosis. Rho guanine nucleotide exchange factors (Rho GEFs), which act upstream of Rho GTPases, are also involved in the atheromatous pathological process. Despite some research on the role of Rho GEFS in the regulation of atherosclerosis, the number of studies is small relative to studies on the essential function of Rho GEFs. Some studies have preliminarily revealed Rho GEF regulation of atherosclerosis by experiments in vivo and in vitro. Herein, we review the advances in research on the relationship and interaction between Rho GEFs and atheroma to provide a potential reference for further study of atherosclerosis.
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Affiliation(s)
- Mengqi Li
- Department of Cardiovascular Surgery, Tianjin Medical University General Hospital, Tianjin, China
| | - Qingzheng Jiao
- Second Department of Internal Medicine, Gucheng County Hospital, Hengshui Gucheng, Hebei, China
| | - Wenqiang Xin
- Department of Neurology, University of Göttingen Medical School, Göttingen, Germany
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China
| | - Shulin Niu
- Department of Cardiology, Tianjin Medical University General Hospital, Tianjin, China
| | - Mingming Liu
- Department of Neurology and Immunology, Institute of Neurology, Tianjin Medical University General Hospital, Tianjin, China
| | - Yanxin Song
- Department of Nursing, Tianjin Medical University, Tianjin, China
| | - Zengguang Wang
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China
- Zengguang Wang
| | - Xinyu Yang
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China
- Xinyu Yang
| | - Degang Liang
- Department of Cardiovascular Surgery, Tianjin Medical University General Hospital, Tianjin, China
- *Correspondence: Degang Liang
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161
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Xu C, Li H, Tang CK. Sterol Carrier Protein 2: A promising target in the pathogenesis of atherosclerosis. Genes Dis 2022; 10:457-467. [DOI: 10.1016/j.gendis.2021.12.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 11/21/2021] [Accepted: 12/01/2021] [Indexed: 10/19/2022] Open
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162
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Razeghian-Jahromi I, Karimi Akhormeh A, Razmkhah M, Zibaeenezhad MJ. Immune system and atherosclerosis: Hostile or friendly relationship. Int J Immunopathol Pharmacol 2022; 36:3946320221092188. [PMID: 35410514 PMCID: PMC9009140 DOI: 10.1177/03946320221092188] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Coronary artery disease has remained a major health challenge despite enormous
progress in prevention, diagnosis, and treatment strategies. Formation of
atherosclerotic plaque is a chronic process that is developmentally influenced
by intrinsic and extrinsic determinants. Inflammation triggers atherosclerosis,
and the fundamental element of inflammation is the immune system. The immune
system involves in the atherosclerosis process by a variety of immune cells and
a cocktail of mediators. It is believed that almost all main components of this
system possess a profound contribution to the atherosclerosis. However, they
play contradictory roles, either protective or progressive, in different stages
of atherosclerosis progression. It is evident that monocytes are the first
immune cells appeared in the atherosclerotic lesion. With the plaque growth,
other types of the immune cells such as mast cells, and T lymphocytes are
gradually involved. Each cell releases several cytokines which cause the
recruitment of other immune cells to the lesion site. This is followed by
affecting the expression of other cytokines as well as altering certain
signaling pathways. All in all, a mix of intertwined interactions determine the
final outcome in terms of mild or severe manifestations, either clinical or
subclinical. Therefore, it is of utmost importance to precisely understand the
kind and degree of contribution which is made by each immune component in order
to stop the growing burden of cardiovascular morbidity and mortality. In this
review, we present a comprehensive appraisal on the role of immune cells in the
atherosclerosis initiation and development.
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Affiliation(s)
- Iman Razeghian-Jahromi
- Cardiovascular Research Center, 571605Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ali Karimi Akhormeh
- Cardiovascular Research Center, 571605Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mahboobeh Razmkhah
- Shiraz Institute for Cancer Research, 48435Shiraz University of Medical Sciences, Shiraz, Iran
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Miller D, Motomura K, Galaz J, Gershater M, Lee ED, Romero R, Gomez-Lopez N. Cellular immune responses in the pathophysiology of preeclampsia. J Leukoc Biol 2022; 111:237-260. [PMID: 33847419 PMCID: PMC8511357 DOI: 10.1002/jlb.5ru1120-787rr] [Citation(s) in RCA: 44] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Preeclampsia, defined as new-onset hypertension accompanied by proteinuria occurring at 20 weeks of gestation or later, is a leading cause of perinatal morbidity and mortality worldwide. The pathophysiology of this major multi-systemic syndrome includes defective deep placentation, oxidative stress, endothelial dysfunction, the presence of an anti-angiogenic state, and intravascular inflammation, among others. In this review, we provide a comprehensive overview of the cellular immune responses involved in the pathogenesis of preeclampsia. Specifically, we summarize the role of innate and adaptive immune cells in the maternal circulation, reproductive tissues, and at the maternal-fetal interface of women affected by this pregnancy complication. The major cellular subsets involved in the pathogenesis of preeclampsia are regulatory T cells, effector T cells, NK cells, monocytes, macrophages, and neutrophils. We also summarize the literature on those immune cells that have been less characterized in this clinical condition, such as γδ T cells, invariant natural killer T cells, dendritic cells, mast cells, and B cells. Moreover, we discuss in vivo studies utilizing a variety of animal models of preeclampsia to further support the role of immune cells in this disease. Finally, we highlight the existing gaps in knowledge of the immunobiology of preeclampsia that require further investigation. The goal of this review is to promote translational research leading to clinically relevant strategies that can improve adverse perinatal outcomes resulting from the obstetrical syndrome of preeclampsia.
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Affiliation(s)
- Derek Miller
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS); Bethesda, Maryland, and Detroit, Michigan, USA,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Kenichiro Motomura
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS); Bethesda, Maryland, and Detroit, Michigan, USA,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Jose Galaz
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS); Bethesda, Maryland, and Detroit, Michigan, USA,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Meyer Gershater
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS); Bethesda, Maryland, and Detroit, Michigan, USA,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Eun D. Lee
- Department of Microbiology and Immunology, Virginia Commonwealth University, Richmond, Virginia, USA,Department of Obstetrics and Gynecology, Virginia Commonwealth University, Richmond, Virginia, USA
| | - Roberto Romero
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS); Bethesda, Maryland, and Detroit, Michigan, USA,Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, Michigan, USA,Department of Epidemiology and Biostatistics, Michigan State University, East Lansing, Michigan, USA,Center for Molecular Medicine and Genetics, Wayne State University, Detroit, Michigan, USA,Detroit Medical Center, Detroit, Michigan, USA,Department of Obstetrics and Gynecology, Florida International University, Miami, Florida, USA
| | - Nardhy Gomez-Lopez
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS); Bethesda, Maryland, and Detroit, Michigan, USA,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan, USA,Department of Biochemistry, Microbiology, and Immunology, Wayne State University School of Medicine, Detroit, Michigan, USA
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164
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Wang C, Ma C, Gong L, Guo Y, Fu K, Zhang Y, Zhou H, Li Y. Macrophage Polarization and Its Role in Liver Disease. Front Immunol 2022; 12:803037. [PMID: 34970275 PMCID: PMC8712501 DOI: 10.3389/fimmu.2021.803037] [Citation(s) in RCA: 197] [Impact Index Per Article: 98.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Accepted: 11/29/2021] [Indexed: 12/12/2022] Open
Abstract
Macrophages are important immune cells in innate immunity, and have remarkable heterogeneity and polarization. Under pathological conditions, in addition to the resident macrophages, other macrophages are also recruited to the diseased tissues, and polarize to various phenotypes (mainly M1 and M2) under the stimulation of various factors in the microenvironment, thus playing different roles and functions. Liver diseases are hepatic pathological changes caused by a variety of pathogenic factors (viruses, alcohol, drugs, etc.), including acute liver injury, viral hepatitis, alcoholic liver disease, metabolic-associated fatty liver disease, liver fibrosis, and hepatocellular carcinoma. Recent studies have shown that macrophage polarization plays an important role in the initiation and development of liver diseases. However, because both macrophage polarization and the pathogenesis of liver diseases are complex, the role and mechanism of macrophage polarization in liver diseases need to be further clarified. Therefore, the origin of hepatic macrophages, and the phenotypes and mechanisms of macrophage polarization are reviewed first in this paper. It is found that macrophage polarization involves several molecular mechanisms, mainly including TLR4/NF-κB, JAK/STATs, TGF-β/Smads, PPARγ, Notch, and miRNA signaling pathways. In addition, this paper also expounds the role and mechanism of macrophage polarization in various liver diseases, which aims to provide references for further research of macrophage polarization in liver diseases, contributing to the therapeutic strategy of ameliorating liver diseases by modulating macrophage polarization.
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Affiliation(s)
- Cheng Wang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Key Laboratory of Standardization for Chinese Herbal Medicine, Ministry of Education, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Cheng Ma
- State Key Laboratory of Southwestern Chinese Medicine Resources, Key Laboratory of Standardization for Chinese Herbal Medicine, Ministry of Education, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Lihong Gong
- State Key Laboratory of Southwestern Chinese Medicine Resources, Key Laboratory of Standardization for Chinese Herbal Medicine, Ministry of Education, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yuqin Guo
- State Key Laboratory of Southwestern Chinese Medicine Resources, Key Laboratory of Standardization for Chinese Herbal Medicine, Ministry of Education, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Ke Fu
- State Key Laboratory of Southwestern Chinese Medicine Resources, Key Laboratory of Standardization for Chinese Herbal Medicine, Ministry of Education, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yafang Zhang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Key Laboratory of Standardization for Chinese Herbal Medicine, Ministry of Education, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Honglin Zhou
- State Key Laboratory of Southwestern Chinese Medicine Resources, Key Laboratory of Standardization for Chinese Herbal Medicine, Ministry of Education, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yunxia Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, Key Laboratory of Standardization for Chinese Herbal Medicine, Ministry of Education, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
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165
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Vascular Calcification: Key Roles of Phosphate and Pyrophosphate. Int J Mol Sci 2021; 22:ijms222413536. [PMID: 34948333 PMCID: PMC8708352 DOI: 10.3390/ijms222413536] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 12/13/2021] [Accepted: 12/14/2021] [Indexed: 11/17/2022] Open
Abstract
Cardiovascular complications due to accelerated arterial stiffening and atherosclerosis are the leading cause of morbimortality in Western society. Both pathologies are frequently associated with vascular calcification. Pathologic calcification of cardiovascular structures, or vascular calcification, is associated with several diseases (for example, genetic diseases, diabetes, and chronic kidney disease) and is a common consequence of aging. Calcium phosphate deposition, mainly in the form of hydroxyapatite, is the hallmark of vascular calcification and can occur in the medial layer of arteries (medial calcification), in the atheroma plaque (intimal calcification), and cardiac valves (heart valve calcification). Although various mechanisms have been proposed for the pathogenesis of vascular calcification, our understanding of the pathogenesis of calcification is far from complete. However, in recent years, some risk factors have been identified, including high serum phosphorus concentration (hyperphosphatemia) and defective synthesis of pyrophosphate (pyrophosphate deficiency). The balance between phosphate and pyrophosphate, strictly controlled by several genes, plays a key role in vascular calcification. This review summarizes the current knowledge concerning phosphate and pyrophosphate homeostasis, focusing on the role of extracellular pyrophosphate metabolism in aortic smooth muscle cells and macrophages.
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166
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Wang X, Liang Z, Xiang H, Li Y, Chen S, Lu H. LKB1 Regulates Vascular Macrophage Functions in Atherosclerosis. Front Pharmacol 2021; 12:810224. [PMID: 34975507 PMCID: PMC8714937 DOI: 10.3389/fphar.2021.810224] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Accepted: 11/29/2021] [Indexed: 11/13/2022] Open
Abstract
Liver kinase B1 (LKB1) is known to shape the regulation of macrophage function by participating in multiple processes including cell metabolism, growth, and polarization. However, whether LKB1 also affects the functional plasticity of macrophages in atherosclerosis has not attracted much attention. Abnormal macrophage function is a pathophysiological hallmark of atherosclerosis, characterized by the formation of foam cells and the maintenance of vascular inflammation. Mounting evidence supports that LKB1 plays a vital role in the regulation of macrophage function in atherosclerosis, including affecting lipid metabolism reprogramming, inflammation, endoplasmic reticulum stress, and autophagy in macrophages. Thus, decreased expression of LKB1 in atherosclerosis aggravates vascular injury by inducing excessive lipid deposition in macrophages and the formation of foam cells. To systematically understand the role and potential mechanism of LKB1 in regulating macrophage functions in atherosclerosis, this review summarizes the relevant data in this regard, hoping to provide new ideas for the prevention and treatment of atherosclerosis.
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Affiliation(s)
- Xuewen Wang
- Health Management Center, The Third Xiangya Hospital of Central South University, Changsha, China
- Department of Cardiology, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Ziwei Liang
- Department of Clinical Laboratory, Yueyang people’s Hospital, Yueyang, China
| | - Hong Xiang
- Center for Experimental Medicine, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Yanqiu Li
- Health Management Center, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Shuhua Chen
- Department of Biochemistry, School of Life Sciences of Central South University, Changsha, China
- Correspondence: Hongwei Lu, ; Shuhua Chen,
| | - Hongwei Lu
- Health Management Center, The Third Xiangya Hospital of Central South University, Changsha, China
- Department of Cardiology, The Third Xiangya Hospital of Central South University, Changsha, China
- Center for Experimental Medicine, The Third Xiangya Hospital of Central South University, Changsha, China
- Correspondence: Hongwei Lu, ; Shuhua Chen,
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167
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Yang H, Li H, Chen W, Mei Z, Yuan Y, Wang X, Chu L, Xu Y, Sun Y, Li D, Gao H, Zhan B, Li H, Yang X. Therapeutic Effect of Schistosoma japonicum Cystatin on Atherosclerotic Renal Damage. Front Cell Dev Biol 2021; 9:760980. [PMID: 34901005 PMCID: PMC8656285 DOI: 10.3389/fcell.2021.760980] [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: 08/19/2021] [Accepted: 10/11/2021] [Indexed: 01/15/2023] Open
Abstract
Atherosclerosis is a chronic inflammation of the arterial vessel wall driven by lipid metabolism disorders. Although helminthic infection and their derivatives have been identified to attenuate the chronic inflammatory diseases, the immunomodulatory effect of recombinant Schistosoma japonicum cystatin (rSj-Cys) on metabolic diseases and atherosclerosis has not been reported. In this study, we investigated the therapeutic efficacy of rSj-Cys on atherosclerotic renal damage and explored the related immunological mechanism. The results demonstrated that treatment with rSj-Cys significantly reduced body weight gain, hyperlipidemia, and atherosclerosis induced by the high-fat diet in apoE–/– mice. The treatment of rSj-Cys also significantly improved kidney functions through promoting macrophage polarization from M1 to M2, therefore inhibiting M1 macrophage–induced inflammation. The possible mechanism underlying the regulatory effect of rSj-Cys on reducing atherosclerosis and atherosclerotic renal damage is that rSj-Cys stimulates regulatory T cell and M2 macrophage polarization that produce regulatory cytokines, such as interleukin 10 and transforming growth factor β. The therapeutic effect of rSj-Cys on atherosclerotic renal damage is possibly through inhibiting the activation of TLR2/Myd88 signaling pathway. The results in this study provide evidence for the first time that Schistosoma-derived cystatin could be developed as a therapeutic agent to treat lipid metabolism disorder and atherosclerosis that threats million lives around the world.
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Affiliation(s)
- Huijuan Yang
- Department of Nephrology, First Affiliated Hospital of Bengbu Medical College, Bengbu, China.,Anhui Key Laboratory of Infection and Immunity of Bengbu Medical College, Bengbu, China
| | - Hongqi Li
- Department of Gerontology, Anhui Provincial Hospital, First Affiliated Hospital of University of Science and Technology of China, Hefei, China
| | - Weidong Chen
- Department of Nephrology, First Affiliated Hospital of Bengbu Medical College, Bengbu, China
| | - Zhijie Mei
- Department of Urology, First Affiliated Hospital of Bengbu Medical College, Bengbu, China
| | - Yuan Yuan
- Anhui Key Laboratory of Infection and Immunity of Bengbu Medical College, Bengbu, China.,Basic Medical College of Bengbu Medical College, Bengbu, China
| | - Xiaoli Wang
- Anhui Key Laboratory of Infection and Immunity of Bengbu Medical College, Bengbu, China.,Basic Medical College of Bengbu Medical College, Bengbu, China
| | - Liang Chu
- Second Affiliated Hospital of Bengbu Medical College, Bengbu, China
| | - Yu Xu
- Anhui Key Laboratory of Infection and Immunity of Bengbu Medical College, Bengbu, China.,Basic Medical College of Bengbu Medical College, Bengbu, China
| | - Yan Sun
- Anhui Key Laboratory of Infection and Immunity of Bengbu Medical College, Bengbu, China.,Basic Medical College of Bengbu Medical College, Bengbu, China
| | - Dingru Li
- Anhui Key Laboratory of Infection and Immunity of Bengbu Medical College, Bengbu, China.,Basic Medical College of Bengbu Medical College, Bengbu, China
| | - Hongyu Gao
- Anhui Key Laboratory of Infection and Immunity of Bengbu Medical College, Bengbu, China.,Basic Medical College of Bengbu Medical College, Bengbu, China
| | - Bin Zhan
- National School of Tropical Medicine, Baylor College of Medicine, Houston, TX, United States
| | - Huihui Li
- Anhui Key Laboratory of Infection and Immunity of Bengbu Medical College, Bengbu, China.,Basic Medical College of Bengbu Medical College, Bengbu, China
| | - Xiaodi Yang
- Anhui Key Laboratory of Infection and Immunity of Bengbu Medical College, Bengbu, China.,Basic Medical College of Bengbu Medical College, Bengbu, China
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168
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Ma Y, Zhang Y, Qiu C, He C, He T, Shi S, Liu Z. Rivaroxaban Suppresses Atherosclerosis by Inhibiting FXa-Induced Macrophage M1 Polarization-Mediated Phenotypic Conversion of Vascular Smooth Muscle Cells. Front Cardiovasc Med 2021; 8:739212. [PMID: 34869643 PMCID: PMC8634446 DOI: 10.3389/fcvm.2021.739212] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Accepted: 10/12/2021] [Indexed: 11/23/2022] Open
Abstract
Background: Factor Xa (FXa) is a mediator initiating and accelerating atherosclerosis (AS). Both macrophage and vascular smooth muscle cells (VSMCs) participate in AS progression. This study was aimed to investigate the mechanisms underlying the effects of the FXa inhibitor rivaroxaban on AS. Methods: Rivaroxaban was administered to AS mice. Primary macrophages were exposed to FXa, treated with rivaroxaban, and transfected with siRNA silencing protease-activated receptor 2 (PAR2), hypoxia-inducible factor 1α (HIF1α), delta-like receptor 4 (Dll4), and Akt. Interaction between macrophages and VSMCs was assessed by co-culturing systems. Atherosclerotic lesions were evaluated by oil red O stain. Fluorescent staining was used to determine the cell phenotypes. Secretions of inflammatory cytokines and collagen were assessed by ELISA and Sircol assays. Western blotting was used to evaluate the protein expression and phosphorylation levels. Results: Rivaroxaban reduced lesion area, accumulation of M1 macrophages, and contractile-synthetic phenotypic conversion of VSMCs in atherosclerotic plaques. FXa exposure induced polarization of macrophages toward M1 and Dll4 high expression, which were inhibited by PAR2, Akt1, and HIF1α silencing. Rivaroxaban treatment inhibited PAR2/Akt/HIF1α signaling activation and Dll4 expression in FXa-exposed macrophages. By cell-to-cell contact, M1 macrophages induced Notch signaling activation in VSMCs which committed contractile-synthetic conversion. Rivaroxaban treatment and Dll4 silencing incapacitated macrophage in inducing phenotypic conversion of VSMCs upon cell-to-cell contact. Conclusion: Rivaroxaban suppresses AS by inhibiting FXa-induced PAR2/Akt/HIF1α signaling activation-mediated macrophage M1 polarization and high Dll4 expression. These macrophages facilitated VSMCs to perform contractile-synthetic phenotypic conversion upon macrophage-VSMCs cell-to-cell contact.
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Affiliation(s)
- Yanpeng Ma
- Department of Cardiology, Shaanxi Provincial People's Hospital, Xi'an, China
| | - Yong Zhang
- Department of Cardiology, Shaanxi Provincial People's Hospital, Xi'an, China
| | - Chuan Qiu
- Center for Bioinformatics and Genomics, Department of Global Biostatistics and Data Science, School of Public Health and Tropical Medicine, Tulane University, New Orleans, LA, United States
| | - Chunhui He
- Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Ting He
- Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Shuang Shi
- Department of Cardiology, Shaanxi Provincial People's Hospital, Xi'an, China
| | - Zhongwei Liu
- Department of Cardiology, Shaanxi Provincial People's Hospital, Xi'an, China
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169
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Ye W, Liu Z, Liu F, Luo C. Heme Oxygenase-1 Predicts Risk Stratification and Immunotherapy Efficacy in Lower Grade Gliomas. Front Cell Dev Biol 2021; 9:760800. [PMID: 34858984 PMCID: PMC8631111 DOI: 10.3389/fcell.2021.760800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 10/11/2021] [Indexed: 11/13/2022] Open
Abstract
Background: Gliomas are the most common tumors in human brains with unpleasing outcomes. Heme oxygenase-1 (HMOX1, HO-1) was a potential target for human cancers. However, their relationship remains incompletely discussed. Methods: We employed a total of 952 lower grade glioma (LGG) patients from TCGA and CGGA databases, and 29 samples in our hospital for subsequent analyses. Expression, mutational, survival, and immune profiles of HMOX1 were comprehensively evaluated. We constructed a risk signature using the LASSO Cox regression model, and further generated a nomogram model to predict survival of LGG patients. Single-cell transcriptomic sequencing data were also employed to investigated the role of HMOX1 in cancer cells. Results: We found that HMOX1 was overexpressed and was related to poorer survival in gliomas. HMOX1-related genes (HRGs) were involved in immune-related pathways. Patients in the high-risk group exhibited significantly poorer overall survival. The risk score was positively correlated with the abundance of resting memory CD4+ T cells, M1, M2 macrophages, and activated dendritic cells. Additionally, immunotherapy showed potent efficacy in low-risk group. And patients with lower HMOX1 expression were predicted to have better response to immunotherapies, suggesting that immunotherapies combined with HMOX1 inhibition may execute good responses. Moreover, significant correlations were found between HMOX1 expression and single-cell functional states including angiogenesis, hypoxia, and metastasis. Finally, we constructed a nomogram which could predict 1-, 3-, and 5-year survival in LGG patients. Conclusion: HMOX1 is involved in immune infiltration and predicts poor survival in patients with lower grade glioma. Importantly, HMOX1 were related to oncological functional states including angiogenesis, hypoxia, and metastasis. A nomogram integrated with the risk signature was obtained to robustly predict glioma patient outcomes, with the potential to guide clinical decision-making.
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Affiliation(s)
- Wenrui Ye
- Department of Neurosurgery, Xiangya Hospital, Central South University (CSU), Changsha, China
| | - Zhixiong Liu
- Department of Neurosurgery, Xiangya Hospital, Central South University (CSU), Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University (CSU), Changsha, China
| | - Fangkun Liu
- Department of Neurosurgery, Xiangya Hospital, Central South University (CSU), Changsha, China
| | - Cong Luo
- Department of Urology, Xiangya Hospital, Central South University (CSU), Changsha, China
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170
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Farahi L, Sinha SK, Lusis AJ. Roles of Macrophages in Atherogenesis. Front Pharmacol 2021; 12:785220. [PMID: 34899348 PMCID: PMC8660976 DOI: 10.3389/fphar.2021.785220] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 11/04/2021] [Indexed: 12/18/2022] Open
Abstract
Atherosclerosis is a chronic inflammatory disease that may ultimately lead to local proteolysis, plaque rupture, and thrombotic vascular disease, resulting in myocardial infarction, stroke, and sudden cardiac death. Circulating monocytes are recruited to the arterial wall in response to inflammatory insults and differentiate into macrophages which make a critical contribution to tissue damage, wound healing, and also regression of atherosclerotic lesions. Within plaques, macrophages take up aggregated lipoproteins which have entered the vessel wall to give rise to cholesterol-engorged foam cells. Also, the macrophage phenotype is influenced by various stimuli which affect their polarization, efferocytosis, proliferation, and apoptosis. The heterogeneity of macrophages in lesions has recently been addressed by single-cell sequencing techniques. This article reviews recent advances regarding the roles of macrophages in different stages of disease pathogenesis from initiation to advanced atherosclerosis. Macrophage-based therapies for atherosclerosis management are also described.
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Affiliation(s)
- Lia Farahi
- Monoclonal Antibody Research Center, Avicenna Research Institute, Tehran, Iran
| | - Satyesh K. Sinha
- Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States
| | - Aldons J. Lusis
- Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States
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171
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Conforti A, Wahlers T, Paunel-Görgülü A. Neutrophil extracellular traps modulate inflammatory markers and uptake of oxidized LDL by human and murine macrophages. PLoS One 2021; 16:e0259894. [PMID: 34797846 PMCID: PMC8604363 DOI: 10.1371/journal.pone.0259894] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Accepted: 10/29/2021] [Indexed: 01/23/2023] Open
Abstract
Neutrophil extracellular traps (NETs) are web-like structures, which are released upon neutrophil activation. It has previously been demonstrated that NETs are present in atherosclerotic lesions of both humans and animal models thus playing a decisive role in atherosclerosis. Besides, macrophages have a crucial role in disease progression, whereby classically activated M1 macrophages sustain inflammation and alternatively activated M2 macrophages display anti-inflammatory effects. Although NETs and macrophages were found to colocalize in atherosclerotic lesions, the impact of NETs on macrophage function is not fully understood. In the present study, we aimed to investigate the effect of NETs on human and murine macrophages in respect to the expression of pro-inflammatory cytokines, matrix metalloproteinases (MMPs) and uptake of oxidized LDL (oxLDL) in vitro. Human THP-1 and murine bone marrow-derived macrophages were cultured under M1 (LPS + IFN-γ)- and M2a (IL-4)-polarizing culture conditions and treated with NETs. To mimic intraplaque regions, cells were additionally cultured under hypoxic conditions. NETs significantly increased the expression of IL-1β, TNF-α and IL-6 in THP-M1 macrophages under normoxia but suppressed their expression in murine M1 macrophages under hypoxic conditions. Notably, NETs increased the number of oxLDL-positive M1 and M2 human and murine macrophages under normoxia, but did not influence formation of murine foam cells under hypoxia. However, oxLDL uptake did not strongly correlate with the expression of the LDL receptor CD36. Besides, upregulated MMP-9 expression and secretion by macrophages was detected in the presence of NETs. Again, hypoxic culture conditions dampened NETs effects. These results suggest that NETs may favor foam cell formation and plaque vulnerability, but exert opposite effects in respect to the inflammatory response of human and murine M1 macrophages. Moreover, effects of NETs on macrophages’ phenotype are altered under hypoxia.
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Affiliation(s)
- Andreas Conforti
- Department of Cardiothoracic Surgery, Heart Center of The University of Cologne, Cologne, Germany
| | - Thorsten Wahlers
- Department of Cardiothoracic Surgery, Heart Center of The University of Cologne, Cologne, Germany
| | - Adnana Paunel-Görgülü
- Department of Cardiothoracic Surgery, Heart Center of The University of Cologne, Cologne, Germany
- * E-mail:
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172
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Mao Y, Lv X, Xu W, Ying Y, Qin Z, Liao H, Chen L, Liu Y. Identification and validation of candidate genes dysregulated in alveolar macrophages of acute respiratory distress syndrome. PeerJ 2021; 9:e12312. [PMID: 34754619 PMCID: PMC8555499 DOI: 10.7717/peerj.12312] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 09/24/2021] [Indexed: 01/10/2023] Open
Abstract
Background Acute respiratory distress syndrome (ARDS) is a common cause of death in ICU patients and its underlying mechanism remains unclear, which leads to its high mortality rate. This study aimed to identify candidate genes potentially implicating in the pathogenesis of ARDS and provide novel therapeutic targets. Methods Using bioinformatics tools, we searched for differentially expressed genes (DEGs) in an ARDS microarray dataset downloaded from the Gene Expression Omnibus (GEO) database. Afterwards, functional enrichment analysis of GO, KEGG, GSEA and WGCNA were carried out to investigate the potential involvement of these DEGs. Moreover, the Protein-protein interaction (PPI) network was constructed and molecular complexes and hub genes were identified, followed by prognosis analysis of the hub genes. Further, we performed qRT-PCR, Western Blot and flow cytometry analysis to detect candidate genes of CCR2 and FPR3 in macrophage model of LPS-induced ARDS and primary alveolar macrophages(AMs). Macrophage chemotaxis was evaluated using Transwell assay. Results DEGs mainly involved in myeloid leukocyte activation, cell chemotaxis, adenylate cyclase-modulating G protein-coupled receptor signaling pathway and cytokine-cytokine receptor interaction. Basing on the constructed PPI network, we identified five molecular complexes and 10 hub genes potentially participating in the pathogenesis of ARDS. It was observed that candidate genes of CCR2 and FPR3 were significantly over-expressed in primary alveolar macrophages from ARDS patients and macrophgae model of LPS-induced ARDS. Moreover, in vitro transwell assay demonstrated that CCR2 and FPR3 down-regulation, respectively, inhibited LPS-triggered macrophage chemotaxis toward CCL2. Finally, a positive correlation between FPR3 and CCR2 expression was confirmed using pearson correlation analysis and Western Blot assay. Conclusions Our study identified CCR2 and FPR3 as the candidate genes which can promote macrophage chemotaxis through a possible interaction between FPR3 and CCL2/CCR2 axis and provided novel insights into ARDS pathogenesis.
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Affiliation(s)
- Yong Mao
- Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Department of Intensive Care Unit, Shanghai, China
| | - Xin Lv
- Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Department of Intensive Care Unit, Shanghai, China
| | - Wei Xu
- Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Department of Intensive Care Unit, Shanghai, China
| | - Youguo Ying
- Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Emergency Department, Shanghai, China
| | - Zonghe Qin
- Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Department of Intensive Care Unit, Shanghai, China
| | - Handi Liao
- Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Department of Intensive Care Unit, Shanghai, China
| | - Li Chen
- Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Department of Intensive Care Unit, Shanghai, China
| | - Ya Liu
- Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Department of Intensive Care Unit, Shanghai, China
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173
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Batoon L, McCauley LK. Cross Talk Between Macrophages and Cancer Cells in the Bone Metastatic Environment. Front Endocrinol (Lausanne) 2021; 12:763846. [PMID: 34803925 PMCID: PMC8597897 DOI: 10.3389/fendo.2021.763846] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 10/11/2021] [Indexed: 12/12/2022] Open
Abstract
The skeleton is a common site for cancer metastases with the bone microenvironment providing the appropriate conditions for cancer cell colonization. Once in bone, cancer cells effectively manipulate their microenvironment to support their growth and survival. Despite previous efforts to improve treatment modalities, skeletal metastases remain with poor prognoses. This warrants an improved understanding of the mechanisms leading to bone metastasis that will aid development of effective treatments. Macrophages in the tumor microenvironment are termed tumor associated macrophages (TAMs) and their crosstalk with cancer cells is critical in regulating tumorigenicity in multiple cancers. In bone metastases, this crosstalk is also being increasingly implicated but the specific signaling pathways remain incompletely understood. Here, we summarize the reported functions, interactions, and signaling of macrophages with cancer cells during the metastatic cascade to bone. Specifically, we review and discuss how these specific interactions impact macrophages and their profiles to promote tumor development. We also discuss the potential of targeting this crosstalk to inhibit disease progression. Finally, we identify the remaining knowledge gaps that will need to be addressed in order to fully consider therapeutic targeting to improve clinical outcomes in cancer patients.
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Affiliation(s)
- Lena Batoon
- Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, MI, United States
- Bones and Immunology Group, Mater Research Institute, The University of Queensland, Brisbane, QLD, Australia
| | - Laurie K. McCauley
- Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, MI, United States
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174
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Zubair K, You C, Kwon G, Kang K. Two Faces of Macrophages: Training and Tolerance. Biomedicines 2021; 9:biomedicines9111596. [PMID: 34829825 PMCID: PMC8615871 DOI: 10.3390/biomedicines9111596] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 10/25/2021] [Accepted: 10/29/2021] [Indexed: 01/16/2023] Open
Abstract
Macrophages are present in almost all body tissues. They detect and quickly respond to “environmental signals” in the tissue. Macrophages have been associated with numerous beneficial roles, such as host defense, wound healing, and tissue regeneration; however, they have also been linked to the development of diverse illnesses, particularly cancers and autoimmune disorders. Complex signaling, epigenetic, and metabolic pathways drive macrophage training and tolerance. The induced intracellular program differs depending on the type of initial stimuli and the tissue microenvironment. Due to the essential roles of macrophages in homeostatic and their association with the pathogenesis of inflammatory diseases, recent studies have investigated the molecular mechanisms of macrophage training and tolerance. This review discusses the role of factors involved in macrophage training and tolerance, along with the current studies in human diseases.
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175
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Hu Q, Chen Z, Yuan X, Li S, Zhang R, Qin X. Common Polymorphisms in the RGMa Promoter Are Associated With Cerebrovascular Atherosclerosis Burden in Chinese Han Patients With Acute Ischemic Cerebrovascular Accident. Front Cardiovasc Med 2021; 8:743868. [PMID: 34722675 PMCID: PMC8554026 DOI: 10.3389/fcvm.2021.743868] [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: 07/21/2021] [Accepted: 09/27/2021] [Indexed: 12/31/2022] Open
Abstract
Repulsive guidance molecule a (RGMa) plays a vital role in the progression of numerous inflammatory diseases. However, whether it participates in atherosclerosis development is not known. Here, we explored the influence of RGMa in atherogenesis by investigating whether an association exists between functional polymorphisms in the RGMa promoter and cerebrovascular atherosclerosis burden (CAB) in Chinese Han patients diagnosed with acute ischemic cerebrovascular accident. To this end, we conducted a genetic association study on 201 patients with prior diagnoses of acute ischemic stroke or transient ischemic attack recruited from our hospital. After admission, we conducted three targeted single-nucleotide polymorphisms (SNPs) genotyping and evaluated CAB by computed tomography angiography. We used logistic regression modeling to analyze genetic associations. Functional polymorphism analysis indicated an independent association between the rs725458 T allele and increased CAB in patients with acute ischemic cerebrovascular accident [adjusted odds ratio (OR) = 1.66, 95% confidence interval (CI) = 1.01–2.74, P = 0.046]. In contrast, an association between the rs4778099 AA genotype and decreased CAB (adjusted OR = 0.10, 95% CI = 0.01–0.77, P = 0.027) was found. Our Gene Expression Omnibus analysis revealed lower RGMa levels in the atherosclerotic aortas and in the macrophages isolated from plaques than that in the normal aortas and macrophages from normal tissue, respectively. In conclusion, the relationship between RGMa and cerebrovascular atherosclerosis suggests that RGMa has a potential vasoprotective effect. The two identified functional SNPs (rs725458 and rs4778099) we identified in the RGMa promoter are associated with CAB in patients diagnosed with acute ischemic cerebrovascular accident. These findings offer a promising research direction for RGMa-related translational studies on atherosclerosis.
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Affiliation(s)
- Qingzhe Hu
- Department of Neurology, The First Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Zhenlei Chen
- Department of Neurology, The First Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Xiaofan Yuan
- Department of Neurology, The First Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Shucheng Li
- Department of Neurology, The First Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Rongrong Zhang
- Department of Neurology, The First Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Xinyue Qin
- Department of Neurology, The First Affiliated Hospital, Chongqing Medical University, Chongqing, China
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176
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Chen Y, Liu Y, Gao X. The Application of Single-Cell Technologies in Cardiovascular Research. Front Cell Dev Biol 2021; 9:751371. [PMID: 34708045 PMCID: PMC8542723 DOI: 10.3389/fcell.2021.751371] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Accepted: 09/21/2021] [Indexed: 12/21/2022] Open
Abstract
Cardiovascular diseases (CVDs) are the leading cause of deaths in the world. The intricacies of the cellular composition and tissue microenvironment in heart and vasculature complicate the dissection of molecular mechanisms of CVDs. Over the past decade, the rapid development of single-cell omics technologies generated vast quantities of information at various biological levels, which have shed light on the cellular and molecular dynamics in cardiovascular development, homeostasis and diseases. Here, we summarize the latest single-cell omics techniques, and show how they have facilitated our understanding of cardiovascular biology. We also briefly discuss the clinical value and future outlook of single-cell applications in the field.
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Affiliation(s)
- Yinan Chen
- Fuwai Hospital, Chinese Academy of Medical Sciences, Shenzhen, China.,State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yang Liu
- Department of Vascular Surgery, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Xiang Gao
- Department of Vascular Surgery, The Second Hospital of Hebei Medical University, Shijiazhuang, China
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177
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Huang R, Hu Z, Chen X, Cao Y, Li H, Zhang H, Li Y, Liang L, Feng Y, Wang Y, Su W, Kong Z, Melgiri ND, Jiang L, Li X, Du J, Chen Y. The Transcription Factor SUB1 Is a Master Regulator of the Macrophage TLR Response in Atherosclerosis. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:e2004162. [PMID: 34378353 PMCID: PMC8498911 DOI: 10.1002/advs.202004162] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 06/24/2021] [Indexed: 12/26/2022]
Abstract
Toll-like receptor 2 and 4 (TLR2, TLR4) signaling is implicated in atherosclerotic plaque formation. The two-stage master regulator Virtual Inference of Protein-activity by Enriched Regulon (VIPER) analysis of macrophage TLR2 and TLR4 signature genes integrated with coexpression network genes derived from 371 patient-derived carotid specimens identifies activated RNA polymerase II transcriptional coactivator p15 (SUB1/Sub1, PC4) as a master regulon in the atherogenic TLR response. It is found that TLR2 and TLR4 signaling is proinflammatory and proatherosclerotic in chow-fed apolipoprotein E-deficient (ApoE-/- ) mice. Through transgenic myeloid-specific Sub1 knockout in ApoE-/- mice, it is discovered that these proatherosclerotic effects of TLR2 and TLR4 signaling are mediated by Sub1. Sub1 knockout in macrophages enhances anti-inflammatory M2 macrophage polarization and cholesterol efflux. Irradiated low density lipoprotein receptor-deficient (Ldlr-/- ) mice transplanted with Sub1-/- murine bone marrow display reduced atherosclerosis. Promoter analysis reveals Sub1-dependent activation of interferon regulatory factor 1 (Irf1) transcription in a casein kinase 2 (Ck2)-dependent manner, and Sub1-knockout macrophages display decreased Irf1 expression. Artificial Irf1 overexpression in Sub1-knockout macrophages enhances proinflammatory M1 skewing and lowers cholesterol clearance. In conclusion, the TLR master regulon Sub1, and its downstream effect on the transcription factor Irf1, promotes a proinflammatory M1 macrophage phenotype and enhances atherosclerotic burden in vivo.
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Affiliation(s)
- Rongzhong Huang
- Department of Geriatric Medicine The Second Affiliated Hospital of Chongqing Medical University Chongqing 400010 China
| | - Zicheng Hu
- Institute of Ultrasound Imaging The Second Affiliated Hospital of Chongqing Medical University Chongqing 400010 China
| | - Xiaorui Chen
- Department of Pulmonary and Critical Care Medicine The Second Affiliated Hospital of Chongqing Medical University Chongqing 400010 China
| | - Yu Cao
- Department of Cardiothoracic Surgery The First People's Hospital of Yunnan Province Kunming 650032 China
| | - Hongrong Li
- Department of Cardiothoracic Surgery The First People's Hospital of Yunnan Province Kunming 650032 China
| | - Hong Zhang
- Department of Cardiology The First People's Hospital of Yunnan Province Kunming 650032 China
| | - Yongyong Li
- Department of Geriatric Medicine The Second Affiliated Hospital of Chongqing Medical University Chongqing 400010 China
| | - Liwen Liang
- Department of Cardiology The First People's Hospital of Yunnan Province Kunming 650032 China
| | - Yuxing Feng
- Department of Rehabilitation and Pain Medicine The Ninth People's Hospital of Chongqing Chongqing 400700 China
| | - Ying Wang
- Department of Rehabilitation Medicine The Second Affiliated Hospital of Chongqing Medical University Chongqing 400010 China
| | - Wenhua Su
- Department of Cardiology The First People's Hospital of Yunnan Province Kunming 650032 China
| | - Zerui Kong
- Department of Cardiothoracic Surgery The Affiliated Yan An Hospital of Kunming Medical University Kunming 650000 China
- Yunnan Key Laboratory of Primate Biomedical Research Kunming 650500 China
| | - ND Melgiri
- Impactys Foundation for Biomedical Research San Diego CA 92121 USA
| | - Lihong Jiang
- Department of Cardiothoracic Surgery The First People's Hospital of Yunnan Province Kunming 650032 China
| | - Xingsheng Li
- Department of Geriatric Medicine The Second Affiliated Hospital of Chongqing Medical University Chongqing 400010 China
| | - Jianlin Du
- Department of Cardiology The Second Affiliated Hospital of Chongqing Medical University Chongqing 400010 China
| | - Yunqing Chen
- Department of Cardiology The Second Affiliated Hospital of Chongqing Medical University Chongqing 400010 China
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178
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Zhang L, Xue S, Ren F, Huang S, Zhou R, Wang Y, Zhou C, Li Z. An atherosclerotic plaque-targeted single-chain antibody for MR/NIR-II imaging of atherosclerosis and anti-atherosclerosis therapy. J Nanobiotechnology 2021; 19:296. [PMID: 34583680 PMCID: PMC8479957 DOI: 10.1186/s12951-021-01047-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Accepted: 09/17/2021] [Indexed: 12/11/2022] Open
Abstract
Background Oxidation-specific epitopes (OSEs) are rich in atherosclerotic plaques. Innate and adaptive immune responses to OSEs play an important role in atherosclerosis. The purpose of this study was to develop novel human single-chain variable fragment (scFv) antibody specific to OSEs to image and inhibit atherosclerosis. Results Here, we screened a novel scFv antibody, named as ASA6, from phage-displayed human scFv library. ASA6 can bind to oxidized LDL (Ox-LDL) and atherosclerotic plaques. Meanwhile, ASA6 can also inhibit the uptake of Ox-LDL into macrophage to reduce macrophage apoptosis. The atherosclerotic lesion area of ApoE−/− mice administrated with ASA6 antibody was significantly reduced. Transcriptome analysis reveals the anti-atherosclerosis effect of ASA6 is related to the regulation of fatty acid metabolism and inhibition of M1 macrophage polarization. Moreover, we conjugated ASA6 antibody to NaNdF4@NaGdF4 nanoparticles for noninvasive imaging of atherosclerotic plaques by magnetic resonance (MR) and near-infrared window II (NIR-II) imaging. Conclusions Together, these data demonstrate the potential of ASA6 antibody in targeted therapy and noninvasive imaging for atherosclerosis. Graphic abstract ![]()
Supplementary Information The online version contains supplementary material available at 10.1186/s12951-021-01047-4.
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Affiliation(s)
- Liwei Zhang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, 266021, China
| | - Sheng Xue
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, 266021, China.
| | - Feng Ren
- Center for Molecular Imaging and Nuclear Medicine, State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Soochow University, Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, Suzhou, 215123, China
| | - Siyang Huang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, 266021, China
| | - Ruizhi Zhou
- Department of Radiology, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266021, China
| | - Yu Wang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, 266021, China
| | - Changyong Zhou
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, 266021, China
| | - Zhen Li
- Center for Molecular Imaging and Nuclear Medicine, State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Soochow University, Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, Suzhou, 215123, China.
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179
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Li J, Zhou L, Ouyang X, He P. Transcription Factor-7-Like-2 (TCF7L2) in Atherosclerosis: A Potential Biomarker and Therapeutic Target. Front Cardiovasc Med 2021; 8:701279. [PMID: 34568447 PMCID: PMC8459927 DOI: 10.3389/fcvm.2021.701279] [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: 04/27/2021] [Accepted: 08/09/2021] [Indexed: 01/07/2023] Open
Abstract
Transcription factor-7-like-2 (TCF7L2), a vital member of the T-cell factor/lymphoid enhancer factor (TCF/LEF) family, plays an important role in normal human physiological and pathological processes. TCF7L2 exhibits multiple anti-atherosclerotic effects through the activation of specific molecular mechanisms, including regulation of metabolic homeostasis, macrophage polarization, and neointimal hyperplasia. A single-nucleotide substitution of TCF7L2, rs7903146, is a genetic high-risk factor for type 2 diabetes and indicates susceptibility to cardiovascular disease as a link between metabolic disorders and atherosclerosis. In this review, we summarize the anti-atherosclerosis effect and novel mechanisms underlying the function of TCF7L2 to elucidate its potential as an anti-atherosclerosis biomarker and provide a novel therapeutic target for cardiovascular diseases.
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Affiliation(s)
- Junyi Li
- School of Nursing, Hengyang Medical College, University of South China, Hengyang, China
| | - Li Zhou
- Department of Pathology, Chongqing Public Health Medical Center, Southwest University Public Health Hospital, Chongqing, China
| | - Xinping Ouyang
- Hengyang Key Laboratory of Neurodegeneration and Cognitive Impairment, Department of Physiology, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang Medical College, The Neuroscience Institute, University of South China, Hengyang, China
| | - Pingping He
- School of Nursing, Hengyang Medical College, University of South China, Hengyang, China
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180
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Checkouri E, Blanchard V, Meilhac O. Macrophages in Atherosclerosis, First or Second Row Players? Biomedicines 2021; 9:biomedicines9091214. [PMID: 34572399 PMCID: PMC8465019 DOI: 10.3390/biomedicines9091214] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 09/08/2021] [Accepted: 09/11/2021] [Indexed: 12/24/2022] Open
Abstract
Macrophages represent a cell type that has been widely described in the context of atherosclerosis since the earliest studies in the 17th century. Their role has long been considered to be preponderant in the onset and aggravation of atherosclerosis, in particular by participating in the establishment of a chronic inflammatory state by the release of pro-inflammatory cytokines and by uncontrolled engorgement of lipids resulting in the formation of foam cells and later of the necrotic core. However, recent evidence from mouse models using an elegant technique of tracing vascular smooth muscle cells (VSMCs) during plaque development revealed that resident VSMCs display impressive plastic properties in response to an arterial injury, allowing them to switch into different cell types within the plaque, including mesenchymal-like cells, macrophage-like cells and osteochondrogenic-like cells. In this review, we oppose the arguments in favor or against the influence of macrophages versus VSMCs in all stages of atherosclerosis including pre-atherosclerosis, formation of lipid-rich foam cells, development of the necrotic core and the fibrous cap as well as calcification and rupture of the plaque. We also analyze the relevance of animal models for the investigation of the pathophysiological mechanisms of atherosclerosis in humans, and discuss potential therapeutic strategies targeting either VSMCs or macrophage to prevent the development of cardiovascular events. Overall, although major findings have been made from animal models, efforts are still needed to better understand and therefore prevent the development of atherosclerotic plaques in humans.
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Affiliation(s)
- Eloïse Checkouri
- INSERM, UMR 1188 Diabète Athérothrombose Thérapies Réunion Océan Indien (DéTROI), Université de La Réunion, 97400 Sainte-Clotilde, France; (E.C.); (V.B.)
- Habemus Papam, Food Industry, 97470 Saint-Benoit, France
| | - Valentin Blanchard
- INSERM, UMR 1188 Diabète Athérothrombose Thérapies Réunion Océan Indien (DéTROI), Université de La Réunion, 97400 Sainte-Clotilde, France; (E.C.); (V.B.)
- Departments of Medicine, Centre for Heart Lung Innovation, Providence Healthcare Research Institute, St Paul’s Hospital, University of British Columbia, Vancouver, BC V6T 1Z4, Canada
| | - Olivier Meilhac
- INSERM, UMR 1188 Diabète Athérothrombose Thérapies Réunion Océan Indien (DéTROI), Université de La Réunion, 97400 Sainte-Clotilde, France; (E.C.); (V.B.)
- CHU de La Réunion, INSERM, CIC1410, 97500 Saint-Pierre, France
- Correspondence: ; Tel.: +33-262-93-8811
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181
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Chen H, Gao J, Xu Q, Wan D, Zhai W, Deng L, Qie R. MiR-145-5p modulates lipid metabolism and M2 macrophage polarization by targeting PAK7 and regulating β-catenin signaling in hyperlipidemia. Can J Physiol Pharmacol 2021; 99:857-863. [PMID: 34143694 DOI: 10.1139/cjpp-2020-0539] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The present study aims to explore the role of microRNA 145-5p (miR-145-5p) in hyperlipidemia. Using bioinformatics tools and a wide range of function and mechanism assays, we attempted to understand the specific function and potential mechanism of miR-145-5p in hyperlipidemia. A cholesterol-enriched diet induced an increase of serum cholesterol and triacylglycerol but a decrease of serum high-density lipoprotein. MiR-145-5p level was decreased in hyperlipidemia rat models. MiR-145-5p regulated lipid metabolism by antagonizing the alteration of high-density lipoprotein, cholesterol, and triacylglycerol in serum mediated by a cholesterol-enriched diet. In mechanism, miR-145-5p directly bound with p21 protein (RAC1)-activated kinase 7 (PAK7) and negatively regulated mRNA and protein levels of PAK7 in THP-1 cells. Furthermore, miR-145-5p level was negatively associated with PAK7 level in rat cardiac tissues. Finally, overexpression of PAK7 reversed the effects of miR-145-5p on β-catenin activation and M2 macrophages polarization in THP-1 cells. In conclusion, MiR-145-5p modulated lipid metabolism and M2 macrophage polarization by targeting PAK7 and regulating β-catenin signaling in hyperlipidemia, which may provide a potential biomarker for the treatment of hyperlipidemia-induced cardiovascular diseases.
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Affiliation(s)
- Huijun Chen
- Department of Cardiology, Second Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin 150001, Heilongjiang, China
| | - Jing Gao
- Department of Cardiology, Second Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin 150001, Heilongjiang, China
| | - Qian Xu
- Department of Cardiology, Second Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin 150001, Heilongjiang, China
| | - Dongmei Wan
- Department of Cardiology, Second Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin 150001, Heilongjiang, China
| | - Wenji Zhai
- Department of Cardiology, Second Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin 150001, Heilongjiang, China
| | - Limei Deng
- Department of Cardiology, Second Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin 150001, Heilongjiang, China
| | - Rui Qie
- Department of Emergency, First Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin 150040, Heilongjiang, China
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182
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Macrophage metabolic regulation in atherosclerotic plaque. Atherosclerosis 2021; 334:1-8. [PMID: 34450556 DOI: 10.1016/j.atherosclerosis.2021.08.010] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 07/02/2021] [Accepted: 08/05/2021] [Indexed: 12/18/2022]
Abstract
Metabolism plays a key role in controlling immune cell functions. In this review, we will discuss the diversity of plaque resident myeloid cells and will focus on their metabolic demands that could reflect on their particular intraplaque localization. Defining the metabolic configuration of plaque resident myeloid cells according to their topologic distribution could provide answers to key questions regarding their functions and contribution to disease development.
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183
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Virgens AR, Goes HFO, de Carvalho GC, Pietrobon AJ, C C Branco AC, Ramos YAL, Pereira NV, Orfali RL, Aoki V, da Silva LFF, Sotto MN, Dos Reis VMS, Sato MN. Perivascular clusters of Th2 cells and M2 macrophages in allergic contact dermatitis to methylchloroisothiazolinone and methylisothiazolinone. Exp Dermatol 2021; 31:191-201. [PMID: 34358352 DOI: 10.1111/exd.14442] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 07/30/2021] [Accepted: 08/04/2021] [Indexed: 11/30/2022]
Abstract
BACKGROUND Methylisothiazolinone (MI) and Methylchloroisothiazolinone (MCI) are among the most common skin sensitizers, yet the immunological events that occur during MCI/MI allergic contact dermatitis (ACD) are still poorly understood. OBJECTIVES To analyse dendrocytes, macrophage subtypes and T cells in skin during the elicitation phase of MCI/MI ACD. METHODS Thirteen patients with positive patch test reactions to MCI/MI (ACD group) and 11 individuals with negative patch test results were selected. Skin biopsies were only performed at 48 hours of patch testing. Immunohistochemistry was conducted to assess T cells, dendrocytes (Factor XIIIa), M1 (p-Stat1, CD68) and M2 (c-Maf, CD163) macrophages. Transcriptional analyses were performed for cytokines and related factors, and further compared to atopic dermatitis samples (n=4). Immunofluorescence assays addressed T cells location, along with IL-4 or IL-13, within the skin. RESULTS MCI/MI elicited dermal dendrocytes and macrophages, pronouncedly the M2 subtype. T cells, majorly CD4+ T cells, accumulated in the perivascular areas. Similarly, abundant IL-4 protein was detected in these areas. There was an upregulation of IL-4 and IL-13 mRNA expression, a mild increase in IFNG mRNA levels and a down-regulation of RORC in the ACD group. Immunofluorescence revealed dermal clusters of T cells co-localized with IL-4. CONCLUSIONS M2 macrophages and Th2 cells participate in the immunopathogenesis of MCI/MI ACD. Dermal dendrocytes and M2 macrophages may assist the formation of CD4+ T cells perivascular clusters. These findings render a mechanistic insight into the MCI/MI reaction. Further analysis at different timepoints of patch testing is required to fully comprehend this ACD kinetics.
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Affiliation(s)
- Anangélica R Virgens
- Laboratory of Investigation in Medicine, LIM-56, Department of Dermatology, Tropical Medicine Institute of São Paulo, University of São Paulo Medical School, São Paulo, SP, Brazil.,Department of Dermatology, University of São Paulo Medical School, São Paulo, SP, Brazil
| | - Heliana F O Goes
- Laboratory of Investigation in Medicine, LIM-56, Department of Dermatology, Tropical Medicine Institute of São Paulo, University of São Paulo Medical School, São Paulo, SP, Brazil.,Department of Dermatology, University of São Paulo Medical School, São Paulo, SP, Brazil
| | - Gabriel C de Carvalho
- Laboratory of Investigation in Medicine, LIM-56, Department of Dermatology, Tropical Medicine Institute of São Paulo, University of São Paulo Medical School, São Paulo, SP, Brazil
| | - Anna Julia Pietrobon
- Laboratory of Investigation in Medicine, LIM-56, Department of Dermatology, Tropical Medicine Institute of São Paulo, University of São Paulo Medical School, São Paulo, SP, Brazil
| | - Anna Cláudia C C Branco
- Laboratory of Investigation in Medicine, LIM-56, Department of Dermatology, Tropical Medicine Institute of São Paulo, University of São Paulo Medical School, São Paulo, SP, Brazil
| | - Yasmim A L Ramos
- Department of Pathology, University of São Paulo Medical School, São Paulo, SP, Brazil
| | - Naiura V Pereira
- Department of Dermatology, University of São Paulo Medical School, São Paulo, SP, Brazil
| | - Raquel L Orfali
- Department of Dermatology, University of São Paulo Medical School, São Paulo, SP, Brazil
| | - Valéria Aoki
- Department of Dermatology, University of São Paulo Medical School, São Paulo, SP, Brazil
| | | | - Mirian N Sotto
- Department of Pathology, University of São Paulo Medical School, São Paulo, SP, Brazil
| | - Vitor M S Dos Reis
- Department of Dermatology, University of São Paulo Medical School, São Paulo, SP, Brazil
| | - Maria N Sato
- Laboratory of Investigation in Medicine, LIM-56, Department of Dermatology, Tropical Medicine Institute of São Paulo, University of São Paulo Medical School, São Paulo, SP, Brazil
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184
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Chang Z, Wang Y, Liu C, Smith W, Kong L. Natural Products for Regulating Macrophages M2 Polarization. Curr Stem Cell Res Ther 2021; 15:559-569. [PMID: 31120001 DOI: 10.2174/1574888x14666190523093535] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Revised: 02/23/2019] [Accepted: 04/26/2019] [Indexed: 02/06/2023]
Abstract
Macrophages M2 polarization have been taken as an anti-inflammatory progression during inflammation. Natural plant-derived products, with potential therapeutic and preventive activities against inflammatory diseases, have received increasing attention in recent years because of their whole regulative effects and specific pharmacological activities. However, the molecular mechanisms about how different kinds of natural compounds regulate macrophages polarization still unclear. Therefore, in the current review, we summarized the detailed research progress on the active compounds derived from herbal plants with regulating effects on macrophages, especially M2 polarization. These natural occurring compounds including flavonoids, terpenoids, glycosides, lignans, coumarins, alkaloids, polyphenols and quinones. In addition, we extensively discussed the cellular mechanisms underlying the M2 polarization for each compound, which could provide potential therapeutic strategies aiming macrophages M2 polarization.
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Affiliation(s)
- Zhen Chang
- Department of Spine Surgery, Honghui-hospital, Xi'an Jiaotong University, School of Medicine, Xi'an, China
| | - Youhan Wang
- Department of Spine Surgery, Honghui-hospital, Xi'an Jiaotong University, School of Medicine, Xi'an, China.,Shaanxi University of Chinese Medicine, Xian Yang, China
| | - Chang Liu
- Department of Spine Surgery, Honghui-hospital, Xi'an Jiaotong University, School of Medicine, Xi'an, China.,Shaanxi University of Chinese Medicine, Xian Yang, China
| | - Wanli Smith
- Department of Neuroscience, Johns Hopkins University, Baltimore, Maryland, USA
| | - Lingbo Kong
- Department of Spine Surgery, Honghui-hospital, Xi'an Jiaotong University, School of Medicine, Xi'an, China
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185
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Zhang Y, Ideguchi H, Aoyagi H, Yamashiro K, Yamamoto T, Nishibori M, Takashiba S. Malnutrition delayed wound healing after tooth extraction by HMGB1-related prolonged inflammation. Int Immunopharmacol 2021; 96:107772. [PMID: 34162142 DOI: 10.1016/j.intimp.2021.107772] [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: 03/23/2021] [Revised: 05/05/2021] [Accepted: 05/05/2021] [Indexed: 10/21/2022]
Abstract
Malnutrition causes prolonged inflammation, resulting in delayed wound healing. High mobility group box-1 (HMGB1) is a damage-associated molecular pattern that is present in the nuclei of macrophages and is secreted into the extracellular milieu in response to stimuli. It stimulates the production of interleukin-1β (IL-1β) through the receptors for advanced glycation end products (RAGE), inducing an inflammatory response, which is an essential response to initiate wound healing. We hypothesized that malnutrition may interfere with this cascade, causing abnormal inflammation and ultimately delaying wound healing. We used tooth-extracted mice with malnutrition fed with low-casein diet for two weeks. On days 3 and 7 after tooth extraction, the wound tissue was histologically observed and analyzed for several factors in the inflammation-regeneration lineage, including IL-1β, mesenchymal stem cells, myeloperoxidase activity, HMGB1, macrophage polarization, and adenosine 5-triphosphate (ATP). On day 7, delayed wound healing was observed with the following findings under malnutrition conditions: decreased mRNA expression of genes for regeneration and mesenchymal stem cell (MSC) accumulation, an obvious increase in myeloperoxidase and IL-1β mRNA expression, an increase in HMGB1 levels, and an increase in ATP concentration in tissues with elevated proportion of M2 macrophages. These results suggest that the significantly increased secretion of HMGB1 associated with the upregulated production of ATP and IL-1β secretion via the RAGE pathway may interfere with the resolution of inflammation and wound healing under the state of malnutrition.
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Affiliation(s)
- Yao Zhang
- Department of Pathophysiology - Periodontal Science, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Hidetaka Ideguchi
- Department of Pathophysiology - Periodontal Science, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Hiroaki Aoyagi
- Department of Pathophysiology - Periodontal Science, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Keisuke Yamashiro
- Department of Periodontics and Endodontics, Okayama University Hospital, Okayama, Japan; Present address: Department of Oral Health, Kobe Tokiwa University, Hyogo, Japan
| | - Tadashi Yamamoto
- Department of Pathophysiology - Periodontal Science, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Masahiro Nishibori
- Department of Pharmacology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Shogo Takashiba
- Department of Pathophysiology - Periodontal Science, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan.
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186
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Shi CX, Wang Y, Jiao FZ, Chen Q, Cao P, Pei MH, Zhang LY, Guo J, Deng W, Wang LW, Gong ZJ. Epigenetic Regulation of Hepatic Stellate Cell Activation and Macrophage in Chronic Liver Inflammation. Front Physiol 2021; 12:683526. [PMID: 34276405 PMCID: PMC8281248 DOI: 10.3389/fphys.2021.683526] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 06/03/2021] [Indexed: 11/13/2022] Open
Abstract
Chronic liver inflammation is a complex pathological process under different stress conditions, and the roles of stellate cells and macrophages in chronic liver inflammation have been widely reported. Moderate liver inflammation can protect the liver from damage and facilitate the recovery of liver injury. However, an inflammatory response that is too intense can result in massive death of hepatocytes, which leads to irreversible damage to the liver parenchyma. Epigenetic regulation plays a key part in liver inflammation. This study reviews the regulation of epigenetics on stellate cells and macrophages to explore the new mechanisms of epigenetics on liver inflammation and provide new ideas for the treatment of liver disease.
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Affiliation(s)
- Chun-Xia Shi
- Department of Infectious Diseases, Renmin Hospital of Wuhan University, Wuhan, China
| | - Yao Wang
- Department of Infectious Diseases, Renmin Hospital of Wuhan University, Wuhan, China
| | - Fang-Zhou Jiao
- Department of Infectious Diseases, Renmin Hospital of Wuhan University, Wuhan, China
| | - Qian Chen
- Department of Infectious Diseases, Renmin Hospital of Wuhan University, Wuhan, China
| | - Pan Cao
- Department of Infectious Diseases, Renmin Hospital of Wuhan University, Wuhan, China
| | - Mao-Hua Pei
- Department of Infectious Diseases, Renmin Hospital of Wuhan University, Wuhan, China
| | - Lu-Yi Zhang
- Department of Infectious Diseases, Renmin Hospital of Wuhan University, Wuhan, China
| | - Jin Guo
- Department of Infectious Diseases, Renmin Hospital of Wuhan University, Wuhan, China
| | - Wei Deng
- Department of Infectious Diseases, Renmin Hospital of Wuhan University, Wuhan, China
| | - Lu-Wen Wang
- Department of Infectious Diseases, Renmin Hospital of Wuhan University, Wuhan, China
| | - Zuo-Jiong Gong
- Department of Infectious Diseases, Renmin Hospital of Wuhan University, Wuhan, China
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187
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Wan R, Weissman JP, Grundman K, Lang L, Grybowski DJ, Galiano RD. Diabetic wound healing: The impact of diabetes on myofibroblast activity and its potential therapeutic treatments. Wound Repair Regen 2021; 29:573-581. [PMID: 34157786 DOI: 10.1111/wrr.12954] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 06/04/2021] [Accepted: 06/07/2021] [Indexed: 12/12/2022]
Abstract
Diabetes is a systemic disease in which the body cannot regulate the amount of sugar, namely glucose, in the blood. High glucose toxicity has been implicated in the dysfunction of diabetic wound healing, following insufficient production (Type 1) or inadequate usage (Type 2) of insulin. Chronic non-healing diabetic wounds are one of the major complications of both types of diabetes, which are serious concerns for public health and can impact the life quality of patients significantly. In general, diabetic wounds are characterized by deficient chemokine production, an unusual inflammatory response, lack of angiogenesis and epithelialization, and dysfunction of fibroblasts. Increasing scientific evidence from available experimental studies on animal and cell models strongly associates impaired wound healing in diabetes with dysregulated fibroblast differentiation to myofibroblasts, interrupted myofibroblast activity, and inadequate extracellular matrix production. Myofibroblasts play an important role in tissue repair by producing and organizing extracellular matrix and subsequently promoting wound contraction. Based on these studies, hyperglycaemic conditions can interfere with cytokine signalling pathways (such as growth factor-β pathway) affecting fibroblast differentiation, alter fibroblast apoptosis, dysregulate dermal lipolysis, and enhance hypoxia damage, thus leading to damaged microenvironment for myofibroblast formation, inappropriate extracellular matrix modulation, and weakened wound contraction. In this review, we will focus on the current available studies on the impact of diabetes on fibroblast differentiation and myofibroblast function, as well as potential treatments related to the affected pathways.
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Affiliation(s)
- Rou Wan
- Department of Surgery, Division of Plastic and Reconstructive Surgery, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Joshua P Weissman
- Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Kendra Grundman
- Department of Surgery, Franciscan Health, Chicago, Illinois, USA
| | - Lin Lang
- Department of Surgery, Shanghai New Hongqiao Medical Center, Shanghai, China
| | - Damian J Grybowski
- Department of Surgery, Division of Plastic and Reconstructive Surgery, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Robert D Galiano
- Department of Surgery, Division of Plastic and Reconstructive Surgery, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
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188
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Fu M, Song J. Single-Cell Transcriptomics Reveals the Cellular Heterogeneity of Cardiovascular Diseases. Front Cardiovasc Med 2021; 8:643519. [PMID: 34179129 PMCID: PMC8225933 DOI: 10.3389/fcvm.2021.643519] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Accepted: 05/13/2021] [Indexed: 12/23/2022] Open
Abstract
"A world in a wild flower, and a bodhi in a leaf," small cells contain huge secrets. The vasculature is composed of many multifunctional cell subpopulations, each of which is involved in the occurrence and development of cardiovascular diseases. Single-cell transcriptomics captures the full picture of genes expressed within individual cells, identifies rare or de novo cell subpopulations, analyzes single-cell trajectory and stem cell or progenitor cell lineage conversion, and compares healthy tissue and disease-related tissue at single-cell resolution. Single-cell transcriptomics has had a profound effect on the field of cardiovascular research over the past decade, as evidenced by the construction of cardiovascular cell landscape, as well as the clarification of cardiovascular diseases and the mechanism of stem cell or progenitor cell differentiation. The classification and proportion of cell subpopulations in vasculature vary with species, location, genotype, and disease, exhibiting unique gene expression characteristics in organ development, disease progression, and regression. Specific gene markers are expected to be the diagnostic criteria, therapeutic targets, or prognostic indicators of diseases. Therefore, treatment of vascular disease still has lots of potentials to develop. Herein, we summarize the cell clusters and gene expression patterns in normal vasculature and atherosclerosis, aortic aneurysm, and pulmonary hypertension to reveal vascular heterogeneity and new regulatory factors of cardiovascular disease in the use of single-cell transcriptomics and discuss its current limitations and promising clinical potential.
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Affiliation(s)
- Mengxia Fu
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- The Cardiomyopathy Research Group at Fuwai Hospital, Beijing, China
| | - Jiangping Song
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- The Cardiomyopathy Research Group at Fuwai Hospital, Beijing, China
- Department of Cardiovascular Surgery, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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189
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Ganji M, Nardi V, Prasad M, Jordan KL, Bois MC, Franchi F, Zhu XY, Tang H, Young MD, Lerman LO, Lerman A. Carotid Plaques From Symptomatic Patients Are Characterized by Local Increase in Xanthine Oxidase Expression. Stroke 2021; 52:2792-2801. [PMID: 34107737 DOI: 10.1161/strokeaha.120.032964] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
[Figure: see text].
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Affiliation(s)
- Morsaleh Ganji
- Department of Cardiovascular Medicine (M.G., V.N., M.P., F.F., M.D.Y., A.L.), Mayo Clinic, Rochester, MN
| | - Valentina Nardi
- Department of Cardiovascular Medicine (M.G., V.N., M.P., F.F., M.D.Y., A.L.), Mayo Clinic, Rochester, MN
| | - Megha Prasad
- Department of Cardiovascular Medicine (M.G., V.N., M.P., F.F., M.D.Y., A.L.), Mayo Clinic, Rochester, MN
| | - Kyra L Jordan
- Department of Nephrology and Hypertension (K.L.J., X.Y.Z., H.T., L.O.L.), Mayo Clinic, Rochester, MN
| | - Melanie C Bois
- Department of Laboratory Medicine and Pathology (M.C.B.), Mayo Clinic, Rochester, MN
| | - Federico Franchi
- Department of Cardiovascular Medicine (M.G., V.N., M.P., F.F., M.D.Y., A.L.), Mayo Clinic, Rochester, MN
| | - Xiang Y Zhu
- Department of Nephrology and Hypertension (K.L.J., X.Y.Z., H.T., L.O.L.), Mayo Clinic, Rochester, MN
| | - Hui Tang
- Department of Nephrology and Hypertension (K.L.J., X.Y.Z., H.T., L.O.L.), Mayo Clinic, Rochester, MN
| | - Melissa D Young
- Department of Cardiovascular Medicine (M.G., V.N., M.P., F.F., M.D.Y., A.L.), Mayo Clinic, Rochester, MN
| | - Lilach O Lerman
- Department of Nephrology and Hypertension (K.L.J., X.Y.Z., H.T., L.O.L.), Mayo Clinic, Rochester, MN
| | - Amir Lerman
- Department of Cardiovascular Medicine (M.G., V.N., M.P., F.F., M.D.Y., A.L.), Mayo Clinic, Rochester, MN
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190
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Tan Y, Wang M, Zhang Y, Ge S, Zhong F, Xia G, Sun C. Tumor-Associated Macrophages: A Potential Target for Cancer Therapy. Front Oncol 2021; 11:693517. [PMID: 34178692 PMCID: PMC8222665 DOI: 10.3389/fonc.2021.693517] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Accepted: 05/24/2021] [Indexed: 12/24/2022] Open
Abstract
Macrophages, an important class of innate immune cells that maintain body homeostasis and ward off foreign pathogens, exhibit a high degree of plasticity and play a supportive role in different tissues and organs. Thus, dysfunction of macrophages may contribute to advancement of several diseases, including cancer. Macrophages within the tumor microenvironment are known as tumor-associated macrophages (TAMs), which typically promote cancer cell initiation and proliferation, accelerate angiogenesis, and tame anti-tumor immunity to promote tumor progression and metastasis. Massive infiltration of TAMs or enrichment of TAM-related markers usually indicates cancer progression and a poor prognosis, and consequently tumor immunotherapies targeting TAMs have gained significant attention. Here, we review the interaction between TAMs and cancer cells, discuss the origin, differentiation and phenotype of TAMs, and highlight the role of TAMs in pro-cancer functions such as tumor initiation and development, invasive metastasis, and immunosuppression. Finally, we review therapies targeting TAMs, which are very promising therapeutic strategies for malignant tumors.
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Affiliation(s)
- Yifan Tan
- Department of Urology, Huashan Hospital, Fudan University, Shanghai, China
| | - Min Wang
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Yang Zhang
- Department of Systems Biology for Medicine, Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, China
| | - Shengyang Ge
- Department of Urology, Huashan Hospital, Fudan University, Shanghai, China
| | - Fan Zhong
- Department of Systems Biology for Medicine, Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, China
| | - Guowei Xia
- Department of Urology, Huashan Hospital, Fudan University, Shanghai, China
| | - Chuanyu Sun
- Department of Urology, Huashan Hospital, Fudan University, Shanghai, China
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191
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Qian Q, He W, Liu D, Yin J, Ye L, Chen P, Xu D, Liu J, Li Y, Zeng G, Li M, Wu Z, Zhang Y, Wang X, DiSanto ME, Zhang X. M2a macrophage can rescue proliferation and gene expression of benign prostate hyperplasia epithelial and stroma cells from insulin-like growth factor 1 knockdown. Prostate 2021; 81:530-542. [PMID: 33861464 DOI: 10.1002/pros.24131] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Accepted: 03/30/2021] [Indexed: 12/20/2022]
Abstract
BACKGROUND Benign prostatic hyperplasia (BPH) is a common disease in elderly men and is often accompanied by chronic inflammation. Macrophages (several subtypes) are the main inflammatory cells that infiltrate the hyperplastic prostate and are found to secrete cytokines and growth factors. The current study aims to explore the effect of M2a macrophages on the development of BPH via insulin-like growth factor 1 (IGF-1). METHODS Human prostate tissues, prostate, and monocyte cell lines (WPMY-1, BPH-1, and THP-1) were used. THP-1 was polarized into several subtypes with cytokines. The expression and localization of IGF-1 and M2 macrophages were determined via immunofluorescent staining, quantitative real-time polymerase chain reaction, and Western blot analysis. Flow cytometry and 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) assays were used to investigate the effects of different subtypes of macrophages on prostate cells. IGF-1 in WPMY-1 and BPH-1 cells was silenced and cocultured with or without M2a macrophages. Cell proliferation, apoptosis, cell cycle, epithelial-mesenchymal transition (EMT), and fibrosis processes were examined. RESULTS The polarized subtypes of macrophages were verified by amplifying their specific markers. M2a macrophages enhanced prostate cell proliferation more significantly and CD206 was more expressed in hyperplastic prostate. IGF-1 was localized in both epithelial and stromal components of prostate and upregulated in BPH tissues. M2a macrophages expressed more IGF-1 than other subtypes. Knockdown of IGF-1 in WPMY-1 and BPH-1 cells attenuated cell proliferation, promoted cell apoptosis, retarded cell cycle at the G0/G1 phase, and suppressed the EMT process in BPH-1 cells as well as the fibrotic process in WPMY-1 cells, which was reversible when cocultured with M2a macrophages. CONCLUSION These data demonstrated that knockdown of IGF-1 expression in cultured BPH epithelial and stromal cells reduces proliferation and increases apoptosis. These effects are reversed by coculture with M2a macrophages.
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Affiliation(s)
- Qiaofeng Qian
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Weixiang He
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Daoquan Liu
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Jing Yin
- Department of Rehabilitation, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Linpeng Ye
- Department of Urology, Huangmei People's Hospital, Huangmei, China
| | - Ping Chen
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Deqiang Xu
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Jianmin Liu
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Yan Li
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Guang Zeng
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Mingzhou Li
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Zhonghua Wu
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Yingao Zhang
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Xinghuan Wang
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Michael E DiSanto
- Department of Surgery and Biomedical Sciences, Cooper Medical School of Rowan University, Camden, New Jersey, USA
| | - Xinhua Zhang
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
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192
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Lin P, Ji HH, Li YJ, Guo SD. Macrophage Plasticity and Atherosclerosis Therapy. Front Mol Biosci 2021; 8:679797. [PMID: 34026849 PMCID: PMC8138136 DOI: 10.3389/fmolb.2021.679797] [Citation(s) in RCA: 81] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Accepted: 04/12/2021] [Indexed: 12/15/2022] Open
Abstract
Atherosclerosis is a chronic disease starting with the entry of monocytes into the subendothelium and the subsequent differentiation into macrophages. Macrophages are the major immune cells in atherosclerotic plaques and are involved in the dynamic progression of atherosclerotic plaques. The biological properties of atherosclerotic plaque macrophages determine lesion size, composition, and stability. The heterogenicity and plasticity of atherosclerotic macrophages have been a hotspot in recent years. Studies demonstrated that lipids, cytokines, chemokines, and other molecules in the atherosclerotic plaque microenvironment regulate macrophage phenotype, contributing to the switch of macrophages toward a pro- or anti-atherosclerosis state. Of note, M1/M2 classification is oversimplified and only represent two extreme states of macrophages. Moreover, M2 macrophages in atherosclerosis are not always protective. Understanding the phenotypic diversity and functions of macrophages can disclose their roles in atherosclerotic plaques. Given that lipid-lowering therapy cannot completely retard the progression of atherosclerosis, macrophages with high heterogeneity and plasticity raise the hope for atherosclerosis regression. This review will focus on the macrophage phenotypic diversity, its role in the progression of the dynamic atherosclerotic plaque, and finally discuss the possibility of treating atherosclerosis by targeting macrophage microenvironment.
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Affiliation(s)
- Ping Lin
- Institute of Lipid Metabolism and Atherosclerosis, Innovative Drug Research Centre, School of Pharmacy, Weifang Medical University, Weifang, China
| | - Hong-Hai Ji
- Institute of Lipid Metabolism and Atherosclerosis, Innovative Drug Research Centre, School of Pharmacy, Weifang Medical University, Weifang, China
| | - Yan-Jie Li
- Institute of Lipid Metabolism and Atherosclerosis, Innovative Drug Research Centre, School of Pharmacy, Weifang Medical University, Weifang, China
| | - Shou-Dong Guo
- Institute of Lipid Metabolism and Atherosclerosis, Innovative Drug Research Centre, School of Pharmacy, Weifang Medical University, Weifang, China
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193
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Maretti-Mira AC, Golden-Mason L, Salomon MP, Kaplan MJ, Rosen HR. Cholesterol-Induced M4-Like Macrophages Recruit Neutrophils and Induce NETosis. Front Immunol 2021; 12:671073. [PMID: 34012454 PMCID: PMC8126646 DOI: 10.3389/fimmu.2021.671073] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Accepted: 04/20/2021] [Indexed: 01/11/2023] Open
Abstract
The liver is the central organ for cholesterol synthesis and homeostasis. The effects of dietary cholesterol on hepatic injury, mainly of oxidized low-density lipoproteins (OxLDL), are not fully understood. Here, we show that the degree of cholesterol oxidation had different impacts on the global gene expression of human M2-like macrophages, with highly oxidized LDL causing the most dramatic changes. M2-like macrophages and Kupffer cells undergo M4-like polarization, decreasing the expression of important markers, such as IL10, MRC1, and CD163. These cells also displayed functional changes, with reduced phagocytic capacity, increased neutrophil recruitment, and more effective neutrophil extracellular traps (NETs) induction. Our findings provide a link between LDL oxidation and modification of peripheral and liver macrophage function.
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Affiliation(s)
- Ana C Maretti-Mira
- Department of Medicine, Keck School of Medicine, Gastroenterology & Hepatology, Research Center for Liver Disease, University of Southern California (USC), Los Angeles, CA, United States
| | - Lucy Golden-Mason
- Department of Medicine, Keck School of Medicine, Gastroenterology & Hepatology, Research Center for Liver Disease, University of Southern California (USC), Los Angeles, CA, United States
| | - Matthew P Salomon
- Department of Medicine, Keck School of Medicine, Gastroenterology & Hepatology, Research Center for Liver Disease, University of Southern California (USC), Los Angeles, CA, United States
| | - Mariana J Kaplan
- Systemic Autoimmunity Branch, National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS), National Institutes of Health (NIH), Bethesda, MD, United States
| | - Hugo R Rosen
- Department of Medicine, Keck School of Medicine, Gastroenterology & Hepatology, Research Center for Liver Disease, University of Southern California (USC), Los Angeles, CA, United States
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194
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Chen Q, Qi X, Zhang W, Zhang Y, Bi Y, Meng Q, Bian H, Li Y. Catalpol Inhibits Macrophage Polarization and Prevents Postmenopausal Atherosclerosis Through Regulating Estrogen Receptor Alpha. Front Pharmacol 2021; 12:655081. [PMID: 33995075 PMCID: PMC8120111 DOI: 10.3389/fphar.2021.655081] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Accepted: 04/21/2021] [Indexed: 12/19/2022] Open
Abstract
Lacking estrogen increases the risk of atherosclerosis (AS) in postmenopausal women. Inflammation plays a vital role in the pathological process of AS, and macrophages are closely related to inflammation. Catalpol is an iridoid glucoside extracted from the fresh roots of the traditional Chinese herb Rehmanniae radix preparata. In this study, we aimed to evaluate the effects of catalpol on macrophage polarization and postmenopausal AS. In addition, we investigated whether the mechanism of catalpol was dependent on regulating the expression of estrogen receptors (ERs). In vitro, lipopolysaccharides (LPS) and interferon-γ (IFN-γ) were applied to induce M1 macrophage polarization. In vivo, the ApoE−/− mice were fed with a high-fat diet to induce AS, and ovariectomy was operated to mimic the estrogen cessation. We demonstrated catalpol inhibited M1 macrophage polarization induced by LPS and INF-γ, and eliminated lipid accumulation in postmenopausal AS mice. Catalpol not only suppressed the inflammatory response but also reduced the level of oxidative stress. Then, ERs (ERα and ERβ) inhibitors and ERα siRNA were also applied in confirming that the protective effect of catalpol was mediated by ERα, rather than ERβ. In conclusion, catalpol significantly inhibited macrophage polarization and prevented postmenopausal AS by increasing ERα expression.
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Affiliation(s)
- Qi Chen
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
| | - Xu Qi
- School of Medicine and Life Sciences, Nanjing University of Chinese Medicine, Nanjing, China
| | - Weiwei Zhang
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
| | - Yuhan Zhang
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
| | - Yunhui Bi
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
| | - Qinghai Meng
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
| | - Huimin Bian
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China.,Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing, China
| | - Yu Li
- Department of Respiratory Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
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195
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Coates JA, Brooks E, Brittle AL, Armitage EL, Zeidler MP, Evans IR. Identification of functionally distinct macrophage subpopulations in Drosophila. eLife 2021; 10:e58686. [PMID: 33885361 PMCID: PMC8062135 DOI: 10.7554/elife.58686] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Accepted: 03/30/2021] [Indexed: 12/24/2022] Open
Abstract
Vertebrate macrophages are a highly heterogeneous cell population, but while Drosophila blood is dominated by a macrophage-like lineage (plasmatocytes), until very recently these cells were considered to represent a homogeneous population. Here, we present our identification of enhancer elements labelling plasmatocyte subpopulations, which vary in abundance across development. These subpopulations exhibit functional differences compared to the overall population, including more potent injury responses and differential localisation and dynamics in pupae and adults. Our enhancer analysis identified candidate genes regulating plasmatocyte behaviour: pan-plasmatocyte expression of one such gene (Calnexin14D) improves wound responses, causing the overall population to resemble more closely the subpopulation marked by the Calnexin14D-associated enhancer. Finally, we show that exposure to increased levels of apoptotic cell death modulates subpopulation cell numbers. Taken together this demonstrates macrophage heterogeneity in Drosophila, identifies mechanisms involved in subpopulation specification and function and facilitates the use of Drosophila to study macrophage heterogeneity in vivo.
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Affiliation(s)
- Jonathon Alexis Coates
- Department of Biomedical Science and the Bateson Centre, University of SheffieldSheffieldUnited Kingdom
| | - Elliot Brooks
- Department of Infection, Immunity and Cardiovascular Disease and the Bateson Centre, University of SheffieldSheffieldUnited Kingdom
| | - Amy Louise Brittle
- Department of Infection, Immunity and Cardiovascular Disease and the Bateson Centre, University of SheffieldSheffieldUnited Kingdom
| | - Emma Louise Armitage
- Department of Infection, Immunity and Cardiovascular Disease and the Bateson Centre, University of SheffieldSheffieldUnited Kingdom
| | - Martin Peter Zeidler
- Department of Biomedical Science and the Bateson Centre, University of SheffieldSheffieldUnited Kingdom
| | - Iwan Robert Evans
- Department of Infection, Immunity and Cardiovascular Disease and the Bateson Centre, University of SheffieldSheffieldUnited Kingdom
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196
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Wang Y, Xu Z, Wang X, Zheng J, Peng L, Zhou Y, Song Y, Lu Z. Extracellular-vesicle containing miRNA-503-5p released by macrophages contributes to atherosclerosis. Aging (Albany NY) 2021; 13:12239-12257. [PMID: 33872218 PMCID: PMC8109059 DOI: 10.18632/aging.103855] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 05/27/2020] [Indexed: 11/29/2022]
Abstract
Endothelial dysfunction, and the differentiation of smooth muscle cells (SMCs) into proliferative, secretory phenotypes, are two major pathophysiological processes in atherosclerosis. SMCs have the potential to recruit macrophages in atherosclerotic plaques, in which macrophages drive inflammatory responses. In this study, we found that microRNA-503-5p (miR-503-5p) was enriched in either extracellular vesicles (EVs), secreted by oxidized low-density lipoprotein-treated macrophages, or the EVs from peripheral blood mononuclear cells of atherosclerosis patients. miR-503-5p was transferred intercellularly from macrophages to the co-cultured human coronary artery endothelial cells (HCAECs) and HCASMCs via EVs, thus reducing the proliferative and angiogenic abilities of HCAECs and accelerating the proliferative and migrating abilities of HCASMCs. Smad family members 1, 2 and 7 were negatively regulated by miR-503-5p in HCAECs and HCASMCs. miR-503-5p was verified as an enhancer of inflammatory cytokines and adhesion molecules released by macrophages, in part via the down-regulation of smad family members 1, 2 and 7. The inhibition of miR-503-5p by lentivirus reduced atherosclerotic lesion formations in the aorta of atherosclerotic mice. Our work demonstrated a miR-503-5p- and EV-mediated mechanism for macrophage communication with HCAECs and HCASMCs in atherosclerosis. miR-503-5p is pro-atherosclerotic stimuli that may be a therapeutic target for atherosclerosis treatment.
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Affiliation(s)
- Yuquan Wang
- Department of Cardiology, Affiliated Hospital of North Sichuan Medical College, Nanchong 637000, P. R. China
| | - Zhengmin Xu
- Department of Pharmacy, North Sichuan Medical College, Nanchong 637000, P. R. China
| | - Xiaoli Wang
- Department of Pharmacy, North Sichuan Medical College, Nanchong 637000, P. R. China
| | - Jiankang Zheng
- Department of Cardiology, Affiliated Hospital of North Sichuan Medical College, Nanchong 637000, P. R. China
| | - Lihan Peng
- Department of Cardiology, Affiliated Hospital of North Sichuan Medical College, Nanchong 637000, P. R. China
| | - Yunfei Zhou
- Department of Thoracic Surgery, Dazhou Central Hospital, Dazhou 635000, P. R. China
| | - Yongyan Song
- School of Preclinical Medicine, and Nanchong Key Laboratory of Metabolic Drugs and Biological Products, North Sichuan Medical College, Nanchong 637000, P. R. China
| | - Zhan Lu
- Department of Cardiology, Affiliated Hospital of North Sichuan Medical College, Nanchong 637000, P. R. China
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197
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Hydroxytyrosol Plays Antiatherosclerotic Effects through Regulating Lipid Metabolism via Inhibiting the p38 Signal Pathway. BIOMED RESEARCH INTERNATIONAL 2021; 2020:5036572. [PMID: 32685494 PMCID: PMC7330625 DOI: 10.1155/2020/5036572] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Revised: 04/25/2020] [Accepted: 05/16/2020] [Indexed: 02/07/2023]
Abstract
Purpose Hydroxytyrosol (HT) processes multiaspect pharmacological properties such as antithrombosis and antidiabetes. The aim of this study was to explore the antistherosclerotic roles and relevant mechanisms of HT. Methods Male apoE−/− mice were randomly divided into 2 groups: the control group and the HT group (10 mg/kg/day orally). After 16 weeks, blood tissue, heart tissue, and liver tissue were obtained to detect the atherosclerotic lesions, histological analysis, lipid parameters, and inflammation. And the underlying molecular mechanisms of HT were also studied in vivo and in vitro. Results HT administration significantly reduced the extent of atherosclerotic lesions in the aorta of apoE−/− mice. We found that HT markedly lowered the levels of serum TG, TC, and LDL-C approximately by 17.4% (p = 0.004), 15.2% (p = 0.003), and 17.9% (p = 0.009), respectively, as well as hepatic TG and TC by 15.0% (p < 0.001) and 12.3% (p = 0.003), respectively, while inducing a 26.9% (p = 0.033) increase in serum HDL-C. Besides, HT improved hepatic steatosis and lipid deposition. Then, we discovered that HT could regulate the signal flow of AMPK/SREBP2 and increase the expression of ABCA1, apoAI, and SRBI. In addition, HT reduced the levels of serum CRP, TNF-α, IL-1β, and IL-6 approximately by 23.5% (p < 0.001), 27.8% (p < 0.001), 18.4% (p < 0.001), and 19.1% (p < 0.001), respectively, and induced a 1.4-fold increase in IL-10 level (p = 0.014). Further, we found that HT might regulate cholesterol metabolism via decreasing phosphorylation of p38, followed by activation of AMPK and inactivation of NF-κB, which in turn triggered the blockade of SREBP2/PCSK9 and upregulation of LDLR, apoAI, and ABCA1, finally leading to a reduction of LDL-C and increase of HDL-C in the circulation. Conclusion Our results provide the first evidence that HT displays antiatherosclerotic actions via mediating lipid metabolism-related pathways through regulating the activities of inflammatory signaling molecules.
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198
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Marques ARA, Ramos C, Machado-Oliveira G, Vieira OV. Lysosome (Dys)function in Atherosclerosis-A Big Weight on the Shoulders of a Small Organelle. Front Cell Dev Biol 2021; 9:658995. [PMID: 33855029 PMCID: PMC8039146 DOI: 10.3389/fcell.2021.658995] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Accepted: 03/11/2021] [Indexed: 12/15/2022] Open
Abstract
Atherosclerosis is a progressive insidious chronic disease that underlies most of the cardiovascular pathologies, including myocardial infarction and ischemic stroke. The malfunctioning of the lysosomal compartment has a central role in the etiology and pathogenesis of atherosclerosis. Lysosomes are the degradative organelles of mammalian cells and process endogenous and exogenous substrates in a very efficient manner. Dysfunction of these organelles and consequent inefficient degradation of modified low-density lipoproteins (LDL) and apoptotic cells in atherosclerotic lesions have, therefore, numerous deleterious consequences for cellular homeostasis and disease progression. Lysosome dysfunction has been mostly studied in the context of the inherited lysosomal storage disorders (LSDs). However, over the last years it has become increasingly evident that the consequences of this phenomenon are more far-reaching, also influencing the progression of multiple acquired human pathologies, such as neurodegenerative diseases, cancer, and cardiovascular diseases (CVDs). During the formation of atherosclerotic plaques, the lysosomal compartment of the various cells constituting the arterial wall is under severe stress, due to the tremendous amounts of lipoproteins being processed by these cells. The uncontrolled uptake of modified lipoproteins by arterial phagocytic cells, namely macrophages and vascular smooth muscle cells (VSMCs), is the initial step that triggers the pathogenic cascade culminating in the formation of atheroma. These cells become pathogenic "foam cells," which are characterized by dysfunctional lipid-laden lysosomes. Here, we summarize the current knowledge regarding the origin and impact of the malfunctioning of the lysosomal compartment in plaque cells. We further analyze how the field of LSD research may contribute with some insights to the study of CVDs, particularly how therapeutic approaches that target the lysosomes in LSDs could be applied to hamper atherosclerosis progression and associated mortality.
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Affiliation(s)
- André R A Marques
- iNOVA4Health, Chronic Diseases Research Center (CEDOC), NOVA Medical School (NMS), Universidade NOVA de Lisboa, Lisbon, Portugal
| | - Cristiano Ramos
- iNOVA4Health, Chronic Diseases Research Center (CEDOC), NOVA Medical School (NMS), Universidade NOVA de Lisboa, Lisbon, Portugal
| | - Gisela Machado-Oliveira
- iNOVA4Health, Chronic Diseases Research Center (CEDOC), NOVA Medical School (NMS), Universidade NOVA de Lisboa, Lisbon, Portugal
| | - Otília V Vieira
- iNOVA4Health, Chronic Diseases Research Center (CEDOC), NOVA Medical School (NMS), Universidade NOVA de Lisboa, Lisbon, Portugal
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199
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Davis FM, Tsoi LC, Melvin WJ, denDekker A, Wasikowski R, Joshi AD, Wolf S, Obi AT, Billi AC, Xing X, Audu C, Moore BB, Kunkel SL, Daugherty A, Lu HS, Gudjonsson JE, Gallagher KA. Inhibition of macrophage histone demethylase JMJD3 protects against abdominal aortic aneurysms. J Exp Med 2021; 218:211922. [PMID: 33779682 PMCID: PMC8008365 DOI: 10.1084/jem.20201839] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 12/23/2020] [Accepted: 02/19/2021] [Indexed: 12/21/2022] Open
Abstract
Abdominal aortic aneurysms (AAAs) are a life-threatening disease for which there is a lack of effective therapy preventing aortic rupture. During AAA formation, pathological vascular remodeling is driven by macrophage infiltration, and the mechanisms regulating macrophage-mediated inflammation remain undefined. Recent evidence suggests that an epigenetic enzyme, JMJD3, plays a critical role in establishing macrophage phenotype. Using single-cell RNA sequencing of human AAA tissues, we identified increased JMJD3 in aortic monocyte/macrophages resulting in up-regulation of an inflammatory immune response. Mechanistically, we report that interferon-β regulates Jmjd3 expression via JAK/STAT and that JMJD3 induces NF-κB–mediated inflammatory gene transcription in infiltrating aortic macrophages. In vivo targeted inhibition of JMJD3 with myeloid-specific genetic depletion (JMJD3f/fLyz2Cre+) or pharmacological inhibition in the elastase or angiotensin II–induced AAA model preserved the repressive H3K27me3 on inflammatory gene promoters and markedly reduced AAA expansion and attenuated macrophage-mediated inflammation. Together, our findings suggest that cell-specific pharmacologic therapy targeting JMJD3 may be an effective intervention for AAA expansion.
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Affiliation(s)
- Frank M Davis
- Section of Vascular Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI.,Department Microbiology and Immunology, University of Michigan, Ann Arbor, MI
| | - Lam C Tsoi
- Department of Dermatology, University of Michigan, Ann Arbor, MI.,Department of Computation Medicine and Bioinformatics, University of Michigan, Ann Arbor, MI.,Department of Biostatistics, University of Michigan, Ann Arbor, MI
| | - William J Melvin
- Section of Vascular Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI
| | - Aaron denDekker
- Section of Vascular Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI
| | | | - Amrita D Joshi
- Section of Vascular Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI
| | - Sonya Wolf
- Section of Vascular Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI
| | - Andrea T Obi
- Section of Vascular Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI
| | - Allison C Billi
- Department of Dermatology, University of Michigan, Ann Arbor, MI
| | - Xianying Xing
- Department of Dermatology, University of Michigan, Ann Arbor, MI
| | - Christopher Audu
- Section of Vascular Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI
| | - Bethany B Moore
- Department Microbiology and Immunology, University of Michigan, Ann Arbor, MI.,Department of Internal Medicine, University of Michigan, Ann Arbor, MI
| | - Steven L Kunkel
- Department of Pathology, University of Michigan, Ann Arbor, MI
| | - Alan Daugherty
- Department of Physiology, Saha Cardiovascular Research Center, University of Kentucky, Lexington, KY
| | - Hong S Lu
- Department of Physiology, Saha Cardiovascular Research Center, University of Kentucky, Lexington, KY
| | | | - Katherine A Gallagher
- Section of Vascular Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI.,Department Microbiology and Immunology, University of Michigan, Ann Arbor, MI
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200
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Du Y, Rong L, Cong Y, Shen L, Zhang N, Wang B. Macrophage polarization: an effective approach to targeted therapy of inflammatory bowel disease. Expert Opin Ther Targets 2021; 25:191-209. [PMID: 33682588 DOI: 10.1080/14728222.2021.1901079] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Introduction: Inflammatory bowel disease (IBD) is a systemic disease with immune abnormalities that can affect the entire digestive tract. A high percentage of patients with IBD are unresponsive to current pharmacological agents, hence the need exists for novel therapeutic approaches. There is compelling evidence that macrophage polarization plays a key role in the remission of IBD patients and that it could open up future treatment options for patients.Areas covered: This paper highlights the crucial role of macrophage polarization in IBD. The authors shed light on the phenotype and function of macrophages and potential drug targets for polarization regulation. Existing approaches for regulating macrophage polarization are discussed and potential solutions for safety concerns are considered. We performed a literature search on the IBD and macrophage polarization mainly published in PubMed January 2010-July 2020.Expert opinion: Evidence indicates that there are fewer M2 macrophages and a high proportion of M1 macrophages in the intestinal tissues of individuals who are non- responsive to treatment. Regulating macrophage polarization is a potential novel targeted option for IBD treatment. Improved mechanistic insights are required to uncover more precise and effective targets for skewing macrophages into a proper phenotype.
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Affiliation(s)
- Yaoyao Du
- Experiment Center for Science and Technology, Shanghai University of Traditional Chinese Medicine, Shanghai, China.,School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Lan Rong
- Department of Digestive Diseases, Huashan Hospital Affiliated to Fudan University, Shanghai, China
| | - Yuanhua Cong
- Center for Pharmaceutics Research, Shanghai Institute of Materia Medica Chinese Academy of Sciences, Shanghai, China
| | - Lan Shen
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Ning Zhang
- Experiment Center for Science and Technology, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Bing Wang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China.,Center for Pharmaceutics Research, Shanghai Institute of Materia Medica Chinese Academy of Sciences, Shanghai, China
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