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Ferraresso F, Leung J, Kastrup CJ. RNA therapeutics to control fibrinolysis: review on applications in biology and medicine. J Thromb Haemost 2024; 22:2103-2114. [PMID: 38663489 PMCID: PMC11269028 DOI: 10.1016/j.jtha.2024.04.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Revised: 04/11/2024] [Accepted: 04/11/2024] [Indexed: 05/26/2024]
Abstract
Regulation of fibrinolysis, the process that degrades blood clots, is pivotal in maintaining hemostasis. Dysregulation leads to thrombosis or excessive bleeding. Proteins in the fibrinolysis system include fibrinogen, coagulation factor XIII, plasminogen, tissue plasminogen activator, urokinase plasminogen activator, α2-antiplasmin, thrombin-activatable fibrinolysis inhibitor, plasminogen activator inhibitor-1, α2-macroglobulin, and others. While each of these is a potential therapeutic target for diseases, they lack effective or long-acting inhibitors. Rapid advances in RNA-based technologies are creating powerful tools to control the expression of proteins. RNA agents can be long-acting and tailored to either decrease or increase production of a specific protein. Advances in nucleic acid delivery, such as by lipid nanoparticles, have enabled the delivery of RNA to the liver, where most proteins of coagulation and fibrinolysis are produced. This review will summarize the classes of RNA that induce 1) inhibition of protein synthesis, including small interfering RNA and antisense oligonucleotides; 2) protein expression, including messenger RNA and self-amplifying RNA; and 3) gene editing for gene knockdown and precise editing. It will review specific examples of RNA therapies targeting proteins in the coagulation and fibrinolysis systems and comment on the wide range of opportunities for controlling fibrinolysis for biological applications and future therapeutics using state-of-the-art RNA therapies.
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Affiliation(s)
- Francesca Ferraresso
- Blood Research Institute, Versiti Wisconsin, Milwaukee, Wisconsin, USA; Michael Smith Laboratories, University of British Columbia, Vancouver, British Columbia, Canada; Department of Biochemistry and Molecular Biology, University of British Columbia, Vancouver, British Columbia, Canada; Centre for Blood Research, University of British Columbia, Vancouver, British Columbia, Canada
| | - Jerry Leung
- Michael Smith Laboratories, University of British Columbia, Vancouver, British Columbia, Canada; Department of Biochemistry and Molecular Biology, University of British Columbia, Vancouver, British Columbia, Canada; Centre for Blood Research, University of British Columbia, Vancouver, British Columbia, Canada
| | - Christian J Kastrup
- Blood Research Institute, Versiti Wisconsin, Milwaukee, Wisconsin, USA; Michael Smith Laboratories, University of British Columbia, Vancouver, British Columbia, Canada; Department of Biochemistry and Molecular Biology, University of British Columbia, Vancouver, British Columbia, Canada; Centre for Blood Research, University of British Columbia, Vancouver, British Columbia, Canada; Departments of Surgery, Biochemistry, Biomedical Engineering, and Pharmacology and Toxicology, Medical College of Wisconsin, Milwaukee, Wisconsin, USA.
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Frias-Anaya E, Gallego-Gutierrez H, Gongol B, Weinsheimer S, Lai CC, Orecchioni M, Sriram A, Bui CM, Nelsen B, Hale P, Pham A, Shenkar R, DeBiasse D, Lightle R, Girard R, Li Y, Srinath A, Daneman R, Nudleman E, Sun H, Guma M, Dubrac A, Mesarwi OA, Ley K, Kim H, Awad IA, Ginsberg MH, Lopez-Ramirez MA. Mild Hypoxia Accelerates Cerebral Cavernous Malformation Disease Through CX3CR1-CX3CL1 Signaling. Arterioscler Thromb Vasc Biol 2024; 44:1246-1264. [PMID: 38660801 PMCID: PMC11111348 DOI: 10.1161/atvbaha.123.320367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Accepted: 04/05/2024] [Indexed: 04/26/2024]
Abstract
BACKGROUND Heterogeneity in the severity of cerebral cavernous malformations (CCMs) disease, including brain bleedings and thrombosis that cause neurological disabilities in patients, suggests that environmental, genetic, or biological factors act as disease modifiers. Still, the underlying mechanisms are not entirely understood. Here, we report that mild hypoxia accelerates CCM disease by promoting angiogenesis, neuroinflammation, and vascular thrombosis in the brains of CCM mouse models. METHODS We used genetic studies, RNA sequencing, spatial transcriptome, micro-computed tomography, fluorescence-activated cell sorting, multiplex immunofluorescence, coculture studies, and imaging techniques to reveal that sustained mild hypoxia via the CX3CR1-CX3CL1 (CX3C motif chemokine receptor 1/chemokine [CX3C motif] ligand 1) signaling pathway influences cell-specific neuroinflammatory interactions, contributing to heterogeneity in CCM severity. RESULTS Histological and expression profiles of CCM neurovascular lesions (Slco1c1-iCreERT2;Pdcd10fl/fl; Pdcd10BECKO) in male and female mice found that sustained mild hypoxia (12% O2, 7 days) accelerates CCM disease. Our findings indicate that a small reduction in oxygen levels can significantly increase angiogenesis, neuroinflammation, and thrombosis in CCM disease by enhancing the interactions between endothelium, astrocytes, and immune cells. Our study indicates that the interactions between CX3CR1 and CX3CL1 are crucial in the maturation of CCM lesions and propensity to CCM immunothrombosis. In particular, this pathway regulates the recruitment and activation of microglia and other immune cells in CCM lesions, which leads to lesion growth and thrombosis. We found that human CX3CR1 variants are linked to lower lesion burden in familial CCMs, proving it is a genetic modifier in human disease and a potential marker for aggressiveness. Moreover, monoclonal blocking antibody against CX3CL1 or reducing 1 copy of the Cx3cr1 gene significantly reduces hypoxia-induced CCM immunothrombosis. CONCLUSIONS Our study reveals that interactions between CX3CR1 and CX3CL1 can modify CCM neuropathology when lesions are accelerated by environmental hypoxia. Moreover, a hypoxic environment or hypoxia signaling caused by CCM disease influences the balance between neuroinflammation and neuroprotection mediated by CX3CR1-CX3CL1 signaling. These results establish CX3CR1 as a genetic marker for patient stratification and a potential predictor of CCM aggressiveness.
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MESH Headings
- Animals
- Female
- Humans
- Male
- Mice
- Chemokine CX3CL1/metabolism
- Chemokine CX3CL1/genetics
- CX3C Chemokine Receptor 1/genetics
- CX3C Chemokine Receptor 1/metabolism
- Disease Models, Animal
- Hemangioma, Cavernous, Central Nervous System/genetics
- Hemangioma, Cavernous, Central Nervous System/metabolism
- Hemangioma, Cavernous, Central Nervous System/pathology
- Hypoxia/metabolism
- Hypoxia/complications
- Mice, Inbred C57BL
- Mice, Knockout
- Neovascularization, Pathologic/metabolism
- Neuroinflammatory Diseases/metabolism
- Neuroinflammatory Diseases/pathology
- Neuroinflammatory Diseases/genetics
- Signal Transduction
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Affiliation(s)
- Eduardo Frias-Anaya
- Department of Medicine (E.F.-A., H.G.-G., C.C.L., C.M.B., B.N., P.H., A.P., H.S., M.G., O.A.M., M.H.G., M.A.L.-R.), University of California San Diego, La Jolla
| | - Helios Gallego-Gutierrez
- Department of Medicine (E.F.-A., H.G.-G., C.C.L., C.M.B., B.N., P.H., A.P., H.S., M.G., O.A.M., M.H.G., M.A.L.-R.), University of California San Diego, La Jolla
| | - Brendan Gongol
- Department of Health Sciences, Victor Valley College, Victorville, CA (B.G.)
- Institute for Integrative Genome Biology, 1207F Genomics Building, University of California, Riverside (B.G.)
| | - Shantel Weinsheimer
- Department of Anesthesia and Perioperative Care, Institute for Human Genetics, University of California, San Francisco (S.W., A.S., H.K.)
| | - Catherine Chinhchu Lai
- Department of Medicine (E.F.-A., H.G.-G., C.C.L., C.M.B., B.N., P.H., A.P., H.S., M.G., O.A.M., M.H.G., M.A.L.-R.), University of California San Diego, La Jolla
| | - Marco Orecchioni
- Division of Inflammation Biology, La Jolla Institute for Immunology, CA (M.O., K.L.)
| | - Aditya Sriram
- Department of Anesthesia and Perioperative Care, Institute for Human Genetics, University of California, San Francisco (S.W., A.S., H.K.)
| | - Cassandra M Bui
- Department of Medicine (E.F.-A., H.G.-G., C.C.L., C.M.B., B.N., P.H., A.P., H.S., M.G., O.A.M., M.H.G., M.A.L.-R.), University of California San Diego, La Jolla
| | - Bliss Nelsen
- Department of Medicine (E.F.-A., H.G.-G., C.C.L., C.M.B., B.N., P.H., A.P., H.S., M.G., O.A.M., M.H.G., M.A.L.-R.), University of California San Diego, La Jolla
| | - Preston Hale
- Department of Medicine (E.F.-A., H.G.-G., C.C.L., C.M.B., B.N., P.H., A.P., H.S., M.G., O.A.M., M.H.G., M.A.L.-R.), University of California San Diego, La Jolla
| | - Angela Pham
- Department of Medicine (E.F.-A., H.G.-G., C.C.L., C.M.B., B.N., P.H., A.P., H.S., M.G., O.A.M., M.H.G., M.A.L.-R.), University of California San Diego, La Jolla
| | - Robert Shenkar
- Neurovascular Surgery Program, Department of Neurological Surgery, The University of Chicago Medicine and Biological Sciences, IL (R.S., D.D., R.L., R.G., Y.L., A.S., I.A.A.)
| | - Dorothy DeBiasse
- Neurovascular Surgery Program, Department of Neurological Surgery, The University of Chicago Medicine and Biological Sciences, IL (R.S., D.D., R.L., R.G., Y.L., A.S., I.A.A.)
| | - Rhonda Lightle
- Neurovascular Surgery Program, Department of Neurological Surgery, The University of Chicago Medicine and Biological Sciences, IL (R.S., D.D., R.L., R.G., Y.L., A.S., I.A.A.)
| | - Romuald Girard
- Neurovascular Surgery Program, Department of Neurological Surgery, The University of Chicago Medicine and Biological Sciences, IL (R.S., D.D., R.L., R.G., Y.L., A.S., I.A.A.)
| | - Ying Li
- Neurovascular Surgery Program, Department of Neurological Surgery, The University of Chicago Medicine and Biological Sciences, IL (R.S., D.D., R.L., R.G., Y.L., A.S., I.A.A.)
| | - Abhinav Srinath
- Neurovascular Surgery Program, Department of Neurological Surgery, The University of Chicago Medicine and Biological Sciences, IL (R.S., D.D., R.L., R.G., Y.L., A.S., I.A.A.)
| | - Richard Daneman
- Department of Pharmacology (R.D., M.A.L.-R.), University of California San Diego, La Jolla
| | - Eric Nudleman
- Department of Ophthalmology (E.N.), University of California San Diego, La Jolla
| | - Hao Sun
- Department of Medicine (E.F.-A., H.G.-G., C.C.L., C.M.B., B.N., P.H., A.P., H.S., M.G., O.A.M., M.H.G., M.A.L.-R.), University of California San Diego, La Jolla
| | - Monica Guma
- Department of Medicine (E.F.-A., H.G.-G., C.C.L., C.M.B., B.N., P.H., A.P., H.S., M.G., O.A.M., M.H.G., M.A.L.-R.), University of California San Diego, La Jolla
| | - Alexandre Dubrac
- Centre de Recherche, CHU St. Justine, Montréal, Quebec, Canada. Département de Pathologie et Biologie Cellulaire, Université de Montréal, Quebec, Canada (A.D.)
| | - Omar A Mesarwi
- Department of Medicine (E.F.-A., H.G.-G., C.C.L., C.M.B., B.N., P.H., A.P., H.S., M.G., O.A.M., M.H.G., M.A.L.-R.), University of California San Diego, La Jolla
| | - Klaus Ley
- Division of Inflammation Biology, La Jolla Institute for Immunology, CA (M.O., K.L.)
| | - Helen Kim
- Department of Anesthesia and Perioperative Care, Institute for Human Genetics, University of California, San Francisco (S.W., A.S., H.K.)
| | - Issam A Awad
- Neurovascular Surgery Program, Department of Neurological Surgery, The University of Chicago Medicine and Biological Sciences, IL (R.S., D.D., R.L., R.G., Y.L., A.S., I.A.A.)
| | - Mark H Ginsberg
- Department of Medicine (E.F.-A., H.G.-G., C.C.L., C.M.B., B.N., P.H., A.P., H.S., M.G., O.A.M., M.H.G., M.A.L.-R.), University of California San Diego, La Jolla
| | - Miguel Alejandro Lopez-Ramirez
- Department of Medicine (E.F.-A., H.G.-G., C.C.L., C.M.B., B.N., P.H., A.P., H.S., M.G., O.A.M., M.H.G., M.A.L.-R.), University of California San Diego, La Jolla
- Department of Pharmacology (R.D., M.A.L.-R.), University of California San Diego, La Jolla
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Chen R, Zhang H, Tang B, Luo Y, Yang Y, Zhong X, Chen S, Xu X, Huang S, Liu C. Macrophages in cardiovascular diseases: molecular mechanisms and therapeutic targets. Signal Transduct Target Ther 2024; 9:130. [PMID: 38816371 PMCID: PMC11139930 DOI: 10.1038/s41392-024-01840-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Revised: 04/02/2024] [Accepted: 04/21/2024] [Indexed: 06/01/2024] Open
Abstract
The immune response holds a pivotal role in cardiovascular disease development. As multifunctional cells of the innate immune system, macrophages play an essential role in initial inflammatory response that occurs following cardiovascular injury, thereby inducing subsequent damage while also facilitating recovery. Meanwhile, the diverse phenotypes and phenotypic alterations of macrophages strongly associate with distinct types and severity of cardiovascular diseases, including coronary heart disease, valvular disease, myocarditis, cardiomyopathy, heart failure, atherosclerosis and aneurysm, which underscores the importance of investigating macrophage regulatory mechanisms within the context of specific diseases. Besides, recent strides in single-cell sequencing technologies have revealed macrophage heterogeneity, cell-cell interactions, and downstream mechanisms of therapeutic targets at a higher resolution, which brings new perspectives into macrophage-mediated mechanisms and potential therapeutic targets in cardiovascular diseases. Remarkably, myocardial fibrosis, a prevalent characteristic in most cardiac diseases, remains a formidable clinical challenge, necessitating a profound investigation into the impact of macrophages on myocardial fibrosis within the context of cardiac diseases. In this review, we systematically summarize the diverse phenotypic and functional plasticity of macrophages in regulatory mechanisms of cardiovascular diseases and unprecedented insights introduced by single-cell sequencing technologies, with a focus on different causes and characteristics of diseases, especially the relationship between inflammation and fibrosis in cardiac diseases (myocardial infarction, pressure overload, myocarditis, dilated cardiomyopathy, diabetic cardiomyopathy and cardiac aging) and the relationship between inflammation and vascular injury in vascular diseases (atherosclerosis and aneurysm). Finally, we also highlight the preclinical/clinical macrophage targeting strategies and translational implications.
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Affiliation(s)
- Runkai Chen
- Department of Cardiology, Laboratory of Heart Center, Heart Center, Translational Medicine Research Center, Zhujiang Hospital, Southern Medical University, 253 Industrial Avenue, Guangzhou, 510280, China
| | - Hongrui Zhang
- Department of Cardiology, Laboratory of Heart Center, Heart Center, Translational Medicine Research Center, Zhujiang Hospital, Southern Medical University, 253 Industrial Avenue, Guangzhou, 510280, China
| | - Botao Tang
- Department of Cardiology, Laboratory of Heart Center, Heart Center, Translational Medicine Research Center, Zhujiang Hospital, Southern Medical University, 253 Industrial Avenue, Guangzhou, 510280, China
| | - Yukun Luo
- Department of Cardiology, Laboratory of Heart Center, Heart Center, Translational Medicine Research Center, Zhujiang Hospital, Southern Medical University, 253 Industrial Avenue, Guangzhou, 510280, China
| | - Yufei Yang
- Department of Cardiology, Laboratory of Heart Center, Heart Center, Translational Medicine Research Center, Zhujiang Hospital, Southern Medical University, 253 Industrial Avenue, Guangzhou, 510280, China
| | - Xin Zhong
- Department of Cardiology, Laboratory of Heart Center, Heart Center, Translational Medicine Research Center, Zhujiang Hospital, Southern Medical University, 253 Industrial Avenue, Guangzhou, 510280, China
| | - Sifei Chen
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100037, China
| | - Xinjie Xu
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100037, China.
| | - Shengkang Huang
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100037, China.
| | - Canzhao Liu
- Department of Cardiology, Laboratory of Heart Center, Heart Center, Translational Medicine Research Center, Zhujiang Hospital, Southern Medical University, 253 Industrial Avenue, Guangzhou, 510280, China.
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Malhi NK, Luo Y, Tang X, Chadha RS, Tapia A, Liu X, Chen M, Yuan D, Qi M, Wei L, Cooke JP, Natarajan R, Southerland KW, Chen ZB. Mapping Endothelial-Macrophage Interactions in Diabetic Vasculature: Role of TREM2 in Vascular Inflammation and Ischemic Response. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.05.14.594235. [PMID: 38798611 PMCID: PMC11118321 DOI: 10.1101/2024.05.14.594235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2024]
Abstract
Vasculopathies occur 15 years earlier in individuals with diabetes mellitus (DM) as compared to those without, but the underlying mechanisms driving diabetic vasculopathy remain incompletely understood. Endothelial cells (ECs) and macrophages (MΦ) are critical players in vascular wall and their crosstalk is crucial in diabetic vasculopathy. In diabetes, EC activation enables monocyte recruitment, which transmigrate into the intima and differentiate into macrophages (MΦ). Beyond this established model of diapedesis, EC-MΦ interplay is highly intricate and heterogenous. To capture these highly context dependent EC-MΦ interactions, we leveraged single-cell (sc)RNA-seq in conjunction with spatial transcriptome (ST)-seq profiling to analyze human mesenteric arteries from non-diabetic (ND) and type 2 diabetic (T2D) donors. We provide in this study a transcriptomic map encompassing major arterial vascular cells, e.g., EC, mononuclear phagocyte (MP), and T cells, and their interactions associated with human T2D. Furthermore, we identified Triggering Receptor Expressed on Myeloid Cells 2 ( TREM2) as a top T2D-induced gene in MP, with concomitant increase of TREM2 ligands in ECs. TREM2 induction was confirmed in mouse models of T2D and monocyte/MΦ subjected to DM-mimicking stimuli. Perturbing TREM2 with either an antibody or silencing RNA in MPs led to decreased pro-inflammatory responses in MPs and ECs and increased EC migration in vitro . In a mouse model of diabetes, TREM2 expression and its interaction with ECs are increased in the ischemic, as compared to non-ischemic muscles. Importantly, neutralization of TREM2 using a neutralizing antibody enhanced ischemic recovery and flow reperfusion in the diabetic mice, suggesting a role of TREM2 in promoting diabetic PAD. Finally, we verified that both TREM2 expression and the TREM2-EC-interaction are increased in human patients with DM-PAD. Collectively, our study presents the first atlas of human diabetic vessels with a focus on EC-MP interactions. Exemplified by TREM2, our study provides valuable insights into EC-MΦ interactions, key processes contributing to diabetic vasculopathies and the potential of targeting these interactions for therapeutic development.
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Liu Y, Wu Z, Li Y, Chen Y, Zhao X, Wu M, Xia Y. Metabolic reprogramming and interventions in angiogenesis. J Adv Res 2024:S2090-1232(24)00178-4. [PMID: 38704087 DOI: 10.1016/j.jare.2024.05.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 04/30/2024] [Accepted: 05/01/2024] [Indexed: 05/06/2024] Open
Abstract
BACKGROUND Endothelial cell (EC) metabolism plays a crucial role in the process of angiogenesis. Intrinsic metabolic events such as glycolysis, fatty acid oxidation, and glutamine metabolism, support secure vascular migration and proliferation, energy and biomass production, as well as redox homeostasis maintenance during vessel formation. Nevertheless, perturbation of EC metabolism instigates vascular dysregulation-associated diseases, especially cancer. AIM OF REVIEW In this review, we aim to discuss the metabolic regulation of angiogenesis by EC metabolites and metabolic enzymes, as well as prospect the possible therapeutic opportunities and strategies targeting EC metabolism. KEY SCIENTIFIC CONCEPTS OF REVIEW In this work, we discuss various aspects of EC metabolism considering normal and diseased vasculature. Of relevance, we highlight that the implications of EC metabolism-targeted intervention (chiefly by metabolic enzymes or metabolites) could be harnessed in orchestrating a spectrum of pathological angiogenesis-associated diseases.
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Affiliation(s)
- Yun Liu
- College of Animal Science and Technology, Southwest University, Chongqing 400715, China
| | - Zifang Wu
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yikun Li
- College of Animal Science and Technology, Southwest University, Chongqing 400715, China; College of Animal Science, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - Yating Chen
- College of Animal Science and Technology, Southwest University, Chongqing 400715, China
| | - Xuan Zhao
- College of Animal Science and Technology, Southwest University, Chongqing 400715, China.
| | - Miaomiao Wu
- Animal Nutritional Genome and Germplasm Innovation Research Center, College of Animal Science and Technology, Hunan Agricultural University, Changsha, Hunan 410128, China.
| | - Yaoyao Xia
- College of Animal Science and Technology, Southwest University, Chongqing 400715, China.
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Lin A, Ramaswamy Y, Misra A. Developmental heterogeneity of vascular cells: Insights into cellular plasticity in atherosclerosis? Semin Cell Dev Biol 2024; 155:3-15. [PMID: 37316416 DOI: 10.1016/j.semcdb.2023.06.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 05/30/2023] [Accepted: 06/06/2023] [Indexed: 06/16/2023]
Abstract
Smooth muscle cells, endothelial cells and macrophages display remarkable heterogeneity within the healthy vasculature and under pathological conditions. During development, these cells arise from numerous embryological origins, which confound with different microenvironments to generate postnatal vascular cell diversity. In the atherosclerotic plaque milieu, all these cell types exhibit astonishing plasticity, generating a variety of plaque burdening or plaque stabilizing phenotypes. And yet how developmental origin influences intraplaque cell plasticity remains largely unexplored despite evidence suggesting this may be the case. Uncovering the diversity and plasticity of vascular cells is being revolutionized by unbiased single cell whole transcriptome analysis techniques that will likely continue to pave the way for therapeutic research. Cellular plasticity is only just emerging as a target for future therapeutics, and uncovering how intraplaque plasticity differs across vascular beds may provide key insights into why different plaques behave differently and may confer different risks of subsequent cardiovascular events.
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Affiliation(s)
- Alexander Lin
- Atherosclerosis and Vascular Remodeling Group, Heart Research Institute, Sydney, NSW, Australia; School of Biomedical Engineering, Faculty of Engineering, The University of Sydney, Sydney, NSW, Australia
| | - Yogambha Ramaswamy
- School of Biomedical Engineering, Faculty of Engineering, The University of Sydney, Sydney, NSW, Australia
| | - Ashish Misra
- Atherosclerosis and Vascular Remodeling Group, Heart Research Institute, Sydney, NSW, Australia; Heart Research Institute, The University of Sydney, Sydney, NSW, Australia; Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia.
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Schelemei P, Wagner E, Picard FSR, Winkels H. Macrophage mediators and mechanisms in cardiovascular disease. FASEB J 2024; 38:e23424. [PMID: 38275140 DOI: 10.1096/fj.202302001r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 12/21/2023] [Accepted: 12/29/2023] [Indexed: 01/27/2024]
Abstract
Macrophages are major players in myocardial infarction (MI) and atherosclerosis, two major cardiovascular diseases (CVD). Atherosclerosis is caused by the buildup of cholesterol-rich lipoproteins in blood vessels, causing inflammation, vascular injury, and plaque formation. Plaque rupture or erosion can cause thrombus formation resulting in inadequate blood flow to the heart muscle and MI. Inflammation, particularly driven by macrophages, plays a central role in both atherosclerosis and MI. Recent integrative approaches of single-cell analysis-based classifications in both murine and human atherosclerosis as well as experimental MI showed overlap in origin, diversity, and function of macrophages in the aorta and the heart. We here discuss differences and communalities between macrophages in the heart and aorta at steady state and in atherosclerosis or upon MI. We focus on markers, mediators, and functional states of macrophage subpopulations. Recent trials testing anti-inflammatory agents show a major benefit in reducing the inflammatory burden of CVD patients, but highlight a necessity for a broader understanding of immune cell ontogeny and heterogeneity in CVD. The novel insights into macrophage biology in CVD represent exciting opportunities for the development of novel treatment strategies against CVD.
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Affiliation(s)
- Patrik Schelemei
- University of Cologne, Faculty of Medicine and University Hospital Cologne, Clinic III for Internal Medicine, Cologne, Germany
- Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany
| | - Elena Wagner
- University of Cologne, Faculty of Medicine and University Hospital Cologne, Clinic III for Internal Medicine, Cologne, Germany
- Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany
| | - Felix Simon Ruben Picard
- University of Cologne, Faculty of Medicine and University Hospital Cologne, Clinic III for Internal Medicine, Cologne, Germany
- Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany
| | - Holger Winkels
- University of Cologne, Faculty of Medicine and University Hospital Cologne, Clinic III for Internal Medicine, Cologne, Germany
- Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany
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Qiao Y, Luo K, Fan J. Heat transfer mechanism in idealized healthy and diseased aortas using fluid-structure interaction method. Biomech Model Mechanobiol 2023; 22:1953-1964. [PMID: 37481471 DOI: 10.1007/s10237-023-01745-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Accepted: 07/06/2023] [Indexed: 07/24/2023]
Abstract
The heat transfer mechanism inside the human aorta may be related to the physiological function and lesion formation of the aortic wall. The objective of this study was to acquire the temperature distribution in the three-dimensional idealized aorta. An idealized healthy aortic geometry and three representative diseased aortas: aortic aneurysm, coarctation of the aorta, and aortic dissection were constructed. Advanced fluid-structure interaction (FSI) computational framework was applied to predict the aortic temperature distribution. The movement of the aortic root due to the heartbeat was also considered. The displacement distribution of the aortic vessel wall was consistent with clinical observation. The lesser curvature of the aortic arch, aneurysm body, coarctation region, and false lumen were all exposed to relatively high temperatures (over 310.006 K). We found that the rigid wall assumption slightly underestimated the magnitude of the whole aortic wall-averaged temperature while the changing trend and local temperature were like the results of the FSI method. Besides, the wall-averaged temperature would increase and the temperature inflection point would advance when the aortic vessel wall was loaded with a high heat flux. This pilot study revealed the aortic heat transfer mechanism and temperature distribution, and the findings may help to understand the physiological characteristics of the aortic vessel wall.
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Affiliation(s)
- Yonghui Qiao
- State Key Laboratory of Clean Energy Utilization, Zhejiang University, 38 Zheda Road, 310027, Hangzhou, China
| | - Kun Luo
- State Key Laboratory of Clean Energy Utilization, Zhejiang University, 38 Zheda Road, 310027, Hangzhou, China.
- Shanghai Institute for Advanced Study of Zhejiang University, Shanghai, China.
| | - Jianren Fan
- State Key Laboratory of Clean Energy Utilization, Zhejiang University, 38 Zheda Road, 310027, Hangzhou, China
- Shanghai Institute for Advanced Study of Zhejiang University, Shanghai, China
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Scipione CA, Hyduk SJ, Polenz CK, Cybulsky MI. Unveiling the Hidden Landscape of Arterial Diseases at Single-Cell Resolution. Can J Cardiol 2023; 39:1781-1794. [PMID: 37716639 DOI: 10.1016/j.cjca.2023.09.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 08/25/2023] [Accepted: 09/11/2023] [Indexed: 09/18/2023] Open
Abstract
High-resolution single-cell technologies have shed light on the pathogenesis of cardiovascular diseases by enabling the discovery of novel cellular and transcriptomic signatures associated with various conditions, and uncovering new contributions of inflammatory processes, immunity, metabolic stress, and risk factors. We review the information obtained from studies using single-cell technologies in tissues with atherosclerosis and aortic aneurysms. Insights are provided on the biology of endothelial, smooth muscle, and immune cells in the arterial intima and media. In addition to cellular diversity, numerous examples of plasticity and phenotype switching are highlighted and presented in the context of normal cell functions.
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Affiliation(s)
- Corey A Scipione
- Toronto General Hospital Research Institute, University Health Network, Toronto, Ontario, Canada; Departments of Laboratory Medicine and Pathobiology and Immunology, University of Toronto, Toronto, Ontario, Canada.
| | - Sharon J Hyduk
- Toronto General Hospital Research Institute, University Health Network, Toronto, Ontario, Canada
| | - Chanele K Polenz
- Toronto General Hospital Research Institute, University Health Network, Toronto, Ontario, Canada; Departments of Laboratory Medicine and Pathobiology and Immunology, University of Toronto, Toronto, Ontario, Canada
| | - Myron I Cybulsky
- Toronto General Hospital Research Institute, University Health Network, Toronto, Ontario, Canada; Departments of Laboratory Medicine and Pathobiology and Immunology, University of Toronto, Toronto, Ontario, Canada; Peter Munk Cardiac Centre, University Health Network, Toronto, Ontario, Canada.
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10
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Hutton M, Frazer M, Lin A, Patel S, Misra A. New Targets in Atherosclerosis: Vascular Smooth Muscle Cell Plasticity and Macrophage Polarity. Clin Ther 2023; 45:1047-1054. [PMID: 37709601 DOI: 10.1016/j.clinthera.2023.08.015] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 08/07/2023] [Accepted: 08/21/2023] [Indexed: 09/16/2023]
Abstract
PURPOSE Despite an increase in treatment options, and substantial reductions in cardiovascular mortality over the past half-century, atherosclerosis remains the most prevalent cause of premature mortality worldwide. The development of innovative new therapies is crucial to further minimize atherosclerosis-related deaths. The diverse array of cell phenotypes derived from vascular smooth muscle cells (SMCs) and macrophages within atherosclerotic plaques are increasingly becoming recognized for their beneficial and detrimental roles in plaque stability and disease burden. This review explores how contemporary transcriptomics and fate-mapping studies have revealed vascular cell plasticity as a relatively unexplored target for therapeutic intervention. METHODS Recent literature for this narrative review was obtained by searching electronic databases (ie, Google Scholar, PubMed). Additional studies were sourced from reference lists and the authors' personal databases. FINDINGS The lipid-rich and inflammatory plaque milieu induces SMC phenotypic switching to both beneficial and detrimental phenotypes. Likewise, macrophage heterogeneity increases with disease burden to a variety of pro-inflammatory and anti-inflammatory activation states. These vascular cell phenotypes are determinants of plaque structure stability, and it is therefore highly likely that they influence clinical outcomes. Development of clinical treatments targeting deleterious phenotypes or promoting pro-healing phenotypes remains in its infancy. However, existing treatments (statins) have shown beneficial effects toward macrophage polarization, providing a rationale for more targeted approaches. In contrast, beneficial SMC phenotypic modulation with these pharmacologic agents has yet to be achieved. The range of modulated vascular cell phenotypes provides a multitude of novel targets and the potential to reduce future adverse events. IMPLICATIONS Vascular cell phenotypic heterogeneity must continue to be explored to lower cardiovascular events in the future. The rapidly increasing weight of evidence surrounding the role of SMC plasticity and macrophage polarity in plaque vulnerability provides a strong foundation upon which development of new therapeutics must follow. This approach may prove to be crucial in reducing cardiovascular events and improving patient benefit in the future.
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Affiliation(s)
- Michael Hutton
- Atherosclerosis and Vascular Remodeling Group, Heart Research Institute, Sydney, New South Wales, Australia
| | - Madeleine Frazer
- Atherosclerosis and Vascular Remodeling Group, Heart Research Institute, Sydney, New South Wales, Australia
| | - Alexander Lin
- Atherosclerosis and Vascular Remodeling Group, Heart Research Institute, Sydney, New South Wales, Australia; School of Biomedical Engineering, Faculty of Engineering, The University of Sydney, Sydney, New South Wales, Australia
| | - Sanjay Patel
- Heart Research Institute, The University of Sydney, Sydney, New South Wales, Australia; Royal Prince Alfred Hospital, Sydney, New South Wales, Australia; Faculty of Medicine and Health, The University of Sydney, Sydney, New South Wales, Australia
| | - Ashish Misra
- Atherosclerosis and Vascular Remodeling Group, Heart Research Institute, Sydney, New South Wales, Australia; Heart Research Institute, The University of Sydney, Sydney, New South Wales, Australia; Faculty of Medicine and Health, The University of Sydney, Sydney, New South Wales, Australia.
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11
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Ji ZZ, Chan MKK, Chan ASW, Leung KT, Jiang X, To KF, Wu Y, Tang PMK. Tumour-associated macrophages: versatile players in the tumour microenvironment. Front Cell Dev Biol 2023; 11:1261749. [PMID: 37965573 PMCID: PMC10641386 DOI: 10.3389/fcell.2023.1261749] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 10/12/2023] [Indexed: 11/16/2023] Open
Abstract
Tumour-Associated Macrophages (TAMs) are one of the pivotal components of the tumour microenvironment. Their roles in the cancer immunity are complicated, both pro-tumour and anti-cancer activities are reported, including not only angiogenesis, extracellular matrix remodeling, immunosuppression, drug resistance but also phagocytosis and tumour regression. Interestingly, TAMs are highly dynamic and versatile in solid tumours. They show anti-cancer or pro-tumour activities, and interplay between the tumour microenvironment and cancer stem cells and under specific conditions. In addition to the classic M1/M2 phenotypes, a number of novel dedifferentiation phenomena of TAMs are discovered due to the advanced single-cell technology, e.g., macrophage-myofibroblast transition (MMT) and macrophage-neuron transition (MNT). More importantly, emerging information demonstrated the potential of TAMs on cancer immunotherapy, suggesting by the therapeutic efficiency of the checkpoint inhibitors and chimeric antigen receptor engineered cells based on macrophages. Here, we summarized the latest discoveries of TAMs from basic and translational research and discussed their clinical relevance and therapeutic potential for solid cancers.
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Affiliation(s)
- Zoey Zeyuan Ji
- Department of Anatomical and Cellular Pathology, State Key Laboratory of Translational Oncology, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - Max Kam-Kwan Chan
- Department of Anatomical and Cellular Pathology, State Key Laboratory of Translational Oncology, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - Alex Siu-Wing Chan
- Department of Applied Social Sciences, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, China
| | - Kam-Tong Leung
- Department of Paediatrics, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - Xiaohua Jiang
- Key Laboratory for Regenerative Medicine of the Ministry of Education of China, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - Ka-Fai To
- Department of Anatomical and Cellular Pathology, State Key Laboratory of Translational Oncology, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - Yi Wu
- MOE Key Laboratory of Environment and Genes Related to Diseases, School of Basic Medical Sciences, Xi’an Jiaotong University, Xi’an, China
| | - Patrick Ming-Kuen Tang
- Department of Anatomical and Cellular Pathology, State Key Laboratory of Translational Oncology, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
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12
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Mannion AJ, Holmgren L. Nuclear mechanosensing of the aortic endothelium in health and disease. Dis Model Mech 2023; 16:dmm050361. [PMID: 37909406 PMCID: PMC10629673 DOI: 10.1242/dmm.050361] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2023] Open
Abstract
The endothelium, the monolayer of endothelial cells that line blood vessels, is exposed to a number of mechanical forces, including frictional shear flow, pulsatile stretching and changes in stiffness influenced by extracellular matrix composition. These forces are sensed by mechanosensors that facilitate their transduction to drive appropriate adaptation of the endothelium to maintain vascular homeostasis. In the aorta, the unique architecture of the vessel gives rise to changes in the fluid dynamics, which, in turn, shape cellular morphology, nuclear architecture, chromatin dynamics and gene regulation. In this Review, we discuss recent work focusing on how differential mechanical forces exerted on endothelial cells are sensed and transduced to influence their form and function in giving rise to spatial variation to the endothelium of the aorta. We will also discuss recent developments in understanding how nuclear mechanosensing is implicated in diseases of the aorta.
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Affiliation(s)
- Aarren J. Mannion
- Department of Oncology-Pathology, Karolinska Institute, Stockholm 171 64, Sweden
| | - Lars Holmgren
- Department of Oncology-Pathology, Karolinska Institute, Stockholm 171 64, Sweden
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13
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Zernecke A, Erhard F, Weinberger T, Schulz C, Ley K, Saliba AE, Cochain C. Integrated single-cell analysis-based classification of vascular mononuclear phagocytes in mouse and human atherosclerosis. Cardiovasc Res 2023; 119:1676-1689. [PMID: 36190844 PMCID: PMC10325698 DOI: 10.1093/cvr/cvac161] [Citation(s) in RCA: 39] [Impact Index Per Article: 39.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 08/09/2022] [Accepted: 09/24/2022] [Indexed: 11/13/2022] Open
Abstract
AIMS Accumulation of mononuclear phagocytes [monocytes, macrophages, and dendritic cells (DCs)] in the vessel wall is a hallmark of atherosclerosis. Using integrated single-cell analysis of mouse and human atherosclerosis, we here aimed to refine the nomenclature of mononuclear phagocytes in atherosclerotic vessels and to compare their transcriptomic profiles in mouse and human disease. METHODS AND RESULTS We integrated 12 single-cell RNA-sequencing (scRNA-seq) datasets of immune cells isolated from healthy or atherosclerotic mouse aortas, and data from 11 patients (n = 4 coronary vessels, n = 7 carotid endarterectomy specimens) from two studies. Integration of mouse data identified subpopulations with discrete transcriptomic signatures within previously described populations of aortic resident (Lyve1), inflammatory (Il1b), as well as foamy (Trem2hi) macrophages. We identified unique transcriptomic features distinguishing aortic intimal resident macrophages from atherosclerosis-associated Trem2hi macrophages. Also, populations of Xcr1+ Type 1 classical DCs (cDC1), Cd209a+ cDC2, and mature DCs (Ccr7, Fscn1) with a 'mreg-DC' signature were detected. In humans, we uncovered macrophage and DC populations with gene expression patterns similar to those observed in mice. In particular, core transcripts of the foamy/Trem2hi signature (TREM2, SPP1, GPNMB, CD9) mapped to a specific population of macrophages in human lesions. Comparison of mouse and human data and direct cross-species data integration suggested transcriptionally similar macrophage and DC populations in mice and humans. CONCLUSIONS We refined the nomenclature of mononuclear phagocytes in mouse atherosclerotic vessels, and show conserved transcriptomic features of macrophages and DCs in atherosclerosis in mice and humans, emphasizing the relevance of mouse models to study mononuclear phagocytes in atherosclerosis.
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Affiliation(s)
- Alma Zernecke
- Institute of Experimental Biomedicine, University Hospital Würzburg, Josef Schneider Str. 2, 97080 Würzburg, Germany
| | - Florian Erhard
- Institute for Virology and Immunobiology, Julius-Maximilians-University Würzburg, Versbacher Straße 7, 97078 Würzburg, Germany
| | - Tobias Weinberger
- Medizinische Klinik und Poliklinik I, Klinikum der Universität, Ludwig-Maximilians-Universität, Campus Großhadern Marchioninistraße 15, 81377 Munich, Germany
- DZHK (German Centre for Cardiovascular Research), partner site Munich Heart Alliance, Munich, Germany
| | - Christian Schulz
- Medizinische Klinik und Poliklinik I, Klinikum der Universität, Ludwig-Maximilians-Universität, Campus Großhadern Marchioninistraße 15, 81377 Munich, Germany
- DZHK (German Centre for Cardiovascular Research), partner site Munich Heart Alliance, Munich, Germany
| | - Klaus Ley
- La Jolla Institute for Immunology, 9420 Athena Circle La Jolla, CA 92037, USA
- Department of Bioengineering, University of California, San Diego, La Jolla, CA 92093, USA
- Immunology Center of Georgia, Augusta University, Augusta, GA 30912, USA
| | - Antoine-Emmanuel Saliba
- Helmholtz Institute for RNA-based Infection Research (HIRI), Helmholtz-Center for Infection Research (HZI), Josef Schneider Str. 2, 97080 Würzburg, Germany
| | - Clément Cochain
- Institute of Experimental Biomedicine, University Hospital Würzburg, Josef Schneider Str. 2, 97080 Würzburg, Germany
- Comprehensive Heart Failure Center Würzburg, University Hospital Würzburg, Am Schwarzenberg 15, 97078 Würzburg, Germany
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14
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Monaco C, Dib L. Breaking the macrophage code in atherosclerosis. Cardiovasc Res 2023; 119:1622-1623. [PMID: 37226046 DOI: 10.1093/cvr/cvad072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/26/2023] Open
Affiliation(s)
- Claudia Monaco
- Kennedy Institute, Nuffield Department of Orthopedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Roosevelt Drive, Oxford OX3 7FY, UK
| | - Lea Dib
- Kennedy Institute, Nuffield Department of Orthopedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Roosevelt Drive, Oxford OX3 7FY, UK
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15
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Wang Y, Huang N, Yang Z. Revealing the Role of Zinc Ions in Atherosclerosis Therapy via an Engineered Three-Dimensional Pathological Model. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2300475. [PMID: 37092571 PMCID: PMC10288231 DOI: 10.1002/advs.202300475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 04/09/2023] [Indexed: 05/03/2023]
Abstract
An incomplete understanding of the cellular functions and underlying mechanisms of zinc ions released from zinc-based stents in atherosclerosis (AS) therapy is one of the major obstacles to their clinical translation. The existing evaluation methodology using cell monolayers has limitations on accurate results due to the lack of vascular architectures and pathological features. Herein, the authors propose a 3D biomimetic AS model based on a multi-layer vascular structure comprising endothelial cells and smooth muscle cells with hyperlipidemic surroundings and inflammatory stimulations as AS-prone biochemical conditions to explore the biological functions of zinc ions in AS therapy. Concentration-dependent biphasic effects of zinc ions on cell growth are observed both in cell monolayers and 3D AS models. Nevertheless, the cells within 3D AS model exhibit more accurate biological assessments of the zinc ions, as evidenced by augmented pathological features and significantly higher half-maximal inhibitory concentration values against zinc ions. Based on such a developed 3D biomimetic AS model, the inhibitory effects on the deoxyribonucleic acid (DNA) synthesis, significantly influenced biological processes like cell motility, proliferation, and adhesion, and several potential bio-targets of zinc ions of cells are revealed.
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Affiliation(s)
- Ying Wang
- Dongguan Key Laboratory of Smart Biomaterials and Regenerative MedicineThe Tenth Affiliated Hospital of Southern Medical UniversityDongguan523059P. R. China
- Guangdong Provincial Key Laboratory of Cardiac Function and MicrocirculationGuangzhou510080P. R. China
| | - Nan Huang
- Dongguan Key Laboratory of Smart Biomaterials and Regenerative MedicineThe Tenth Affiliated Hospital of Southern Medical UniversityDongguan523059P. R. China
| | - Zhilu Yang
- Dongguan Key Laboratory of Smart Biomaterials and Regenerative MedicineThe Tenth Affiliated Hospital of Southern Medical UniversityDongguan523059P. R. China
- Guangdong Provincial Key Laboratory of Cardiac Function and MicrocirculationGuangzhou510080P. R. China
- Department of CardiologyThird People's Hospital of Chengdu Affiliated to Southwest Jiaotong UniversityChengdu610031P. R. China
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16
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Yu L, Zhang Y, Liu C, Wu X, Wang S, Sui W, Zhang Y, Zhang C, Zhang M. Heterogeneity of macrophages in atherosclerosis revealed by single-cell RNA sequencing. FASEB J 2023; 37:e22810. [PMID: 36786718 DOI: 10.1096/fj.202201932rr] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Revised: 01/19/2023] [Accepted: 01/26/2023] [Indexed: 02/15/2023]
Abstract
Technology at the single-cell level has advanced dramatically in characterizing molecular heterogeneity. These technologies have enabled cell subtype diversity to be seen in all tissues, including atherosclerotic plaques. Critical in atherosclerosis pathogenesis and progression are macrophages. Previous studies have only determined macrophage phenotypes within the plaque, mainly by bulk analysis. However, recent progress in single-cell technologies now enables the comprehensive mapping of macrophage subsets and phenotypes present in plaques. In this review, we have updated and discussed the definition and classification of macrophage subsets in mice and humans using single-cell RNA sequencing. We summarized the different classification methods and perspectives: traditional classification with an updated scoring system, inflammatory macrophages, foamy macrophages, and atherosclerotic-resident macrophages. In addition, some special types of macrophages were identified by specific markers, including IFN-inducible and cavity macrophages. Furthermore, we discussed macrophage subset-specific markers and their functions. In the future, these novel insights into the characteristics and phenotypes of these macrophage subsets within atherosclerotic plaques can provide additional therapeutic targets for cardiovascular diseases.
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Affiliation(s)
- Liwen Yu
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Yujie Zhang
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Changhao Liu
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Xiao Wu
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Shasha Wang
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Wenhai Sui
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Cardiovascular Disease Research Center of Shandong First Medical University, Central Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Yun Zhang
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Cardiovascular Disease Research Center of Shandong First Medical University, Central Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Cheng Zhang
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Cardiovascular Disease Research Center of Shandong First Medical University, Central Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Meng Zhang
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Cardiovascular Disease Research Center of Shandong First Medical University, Central Hospital Affiliated to Shandong First Medical University, Jinan, China
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17
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Li L, Ma Q, Wang M, Mou J, Han Y, Wang J, Ye J, Sun G. Single-cell transcriptome sequencing of macrophages in common cardiovascular diseases. J Leukoc Biol 2023; 113:139-148. [PMID: 36822177 DOI: 10.1093/jleuko/qiac014] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Indexed: 01/18/2023] Open
Abstract
Macrophages are strategically located throughout the body at key sites in the immune system. A key feature in atherosclerosis is the uptake and accumulation of lipoproteins by arterial macrophages, leading to the formation of foam cells. After myocardial infarction, macrophages derived from monocytes infiltrate the infarcted heart. Macrophages are also closely related to adverse remodeling after heart failure. An in-depth understanding of the functions and characteristics of macrophages is required to study heart health and pathophysiological processes; however, the heterogeneity and plasticity explained by the classic M1/M2 macrophage paradigm are too limited. Single-cell sequencing is a high-throughput sequencing technique that enables the sequencing of the genome or transcriptome of a single cell. It effectively complements the heterogeneity of gene expression in a single cell that is ignored by conventional sequencing and can give valuable insights into the development of complex diseases. In the present review, we summarize the available research on the application of single-cell transcriptome sequencing to study the changes in macrophages during common cardiovascular diseases, such as atherosclerosis, myocardial infarction, and heart failure. This article also discusses the contribution of this knowledge to understanding the pathogenesis, development, diagnosis, and treatment of heart diseases.
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Affiliation(s)
- Lanfang Li
- Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Malianwa Road, Haidian District, Beijing, China
| | - Qiuxiao Ma
- Xiyuan Hospital, China Academy of Chinese Medical Sciences, Xiyuan Playground, Haidian District, Beijing, China
| | - Min Wang
- Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Malianwa Road, Haidian District, Beijing, China
| | - Junyu Mou
- School of Pharmacy, Harbin University of Commerce, Xuehai Street, Songbei District, Harbin, China
| | - Yanwei Han
- School of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Waihuan East Road, Panyu District, Guangzhou, China
| | - Jialu Wang
- Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Malianwa Road, Haidian District, Beijing, China
| | - Jingxue Ye
- Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Malianwa Road, Haidian District, Beijing, China
| | - Guibo Sun
- Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Malianwa Road, Haidian District, Beijing, China
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18
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Abstract
PURPOSE OF REVIEW To highlight recent conceptual and technological advances that have positioned the field to interrogate the cellular and molecular mechanisms contributing to the initiation of atherosclerosis, including intimal lipid accumulation, inflammation, and lesion growth. RECENT FINDINGS Advances in the understanding of endothelial LDL transcytosis and rapid lipid uptake by intimal macrophages provide mechanistic insights into intimal LDL accumulation and the initiation of atherogenesis. Recent studies have used unbiased single-cell approaches, such as single-cell RNA sequencing and CyTOF, to characterize the cellular components of the normal intima and atherosclerotic lesions. In-vitro studies and high-resolution transcriptomic analysis of aortic intimal lipid-loaded versus lipid-poor myeloid populations in vivo suggest that lipid-loaded macrophages may not be the primary drivers of inflammation in atherosclerotic lesions. SUMMARY A new perspective on the complex cellular landscape of the aorta, specifically the atherosclerosis-prone regions, confirm that intimal accumulation of lipid, monocyte recruitment, and macrophage accumulation are key events in atherogenesis triggered by hypercholesterolemia. Targeting these early events may prove to be a promising strategy for the attenuation of lesion development; however, the specific details of how hypercholesterolemia acts to initiate early inflammatory events remain to be fully elucidated.
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Affiliation(s)
- Corey A. Scipione
- Toronto General Hospital Research Institute, University Health Network
- Department of Laboratory Medicine and Pathobiology
- Department of Immunology, University of Toronto
| | - Myron I. Cybulsky
- Toronto General Hospital Research Institute, University Health Network
- Department of Laboratory Medicine and Pathobiology
- Department of Immunology, University of Toronto
- Peter Munk Cardiac Centre, University Health Network, Toronto, Canada
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19
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Xiang P, Blanchard V, Francis GA. Smooth Muscle Cell—Macrophage Interactions Leading to Foam Cell Formation in Atherosclerosis: Location, Location, Location. Front Physiol 2022; 13:921597. [PMID: 35795646 PMCID: PMC9251363 DOI: 10.3389/fphys.2022.921597] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Accepted: 05/30/2022] [Indexed: 11/13/2022] Open
Abstract
Cholesterol-overloaded cells or “foam cells” in the artery wall are the biochemical hallmark of atherosclerosis, and are responsible for much of the growth, inflammation and susceptibility to rupture of atherosclerotic lesions. While it has previously been thought that macrophages are the main contributor to the foam cell population, recent evidence indicates arterial smooth muscle cells (SMCs) are the source of the majority of foam cells in both human and murine atherosclerosis. This review outlines the timeline, site of appearance and proximity of SMCs and macrophages with lipids in human and mouse atherosclerosis, and likely interactions between SMCs and macrophages that promote foam cell formation and removal by both cell types. An understanding of these SMC-macrophage interactions in foam cell formation and regression is expected to provide new therapeutic targets to reduce the burden of atherosclerosis for the prevention of coronary heart disease, stroke and peripheral vascular disease.
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20
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The why and how of adaptive immune responses in ischemic cardiovascular disease. NATURE CARDIOVASCULAR RESEARCH 2022; 1:431-444. [PMID: 36382200 PMCID: PMC7613798 DOI: 10.1038/s44161-022-00049-1] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Atherosclerotic cardiovascular disease is a major cause of disability and death worldwide. Most therapeutic approaches target traditional risk factors but ignore the fundamental role of the immune system. This is a huge unmet need. Recent evidence indicates that reducing inflammation may limit cardiovascular events. However, the concomitant increase in the risk of lifethreatening infections is a major drawback. In this context, targeting adaptive immunity could constitute a highly effective and safer approach. In this Review, we address the why and how of the immuno-cardiovascular unit, in health and in atherosclerotic disease. We review and discuss fundamental mechanisms that ensure immune tolerance to cardiovascular tissue, and examine how their disruption promotes disease progression. We identify promising strategies to manipulate the adaptive immune system for patient benefit, including novel biologics and RNA-based vaccination strategies. Finally, we advocate for establishing a molecular classification of atherosclerosis as an important milestone in our quest to radically change the understanding and treatment of atherosclerotic disease.
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21
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Pulous FE, Nahrendorf M. Aortic-intima-resident macrophages are guardians of arterial health. NATURE CARDIOVASCULAR RESEARCH 2022; 1:4-5. [PMID: 39196109 DOI: 10.1038/s44161-021-00008-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/29/2024]
Affiliation(s)
- Fadi E Pulous
- Center for Systems Biology and Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Matthias Nahrendorf
- Center for Systems Biology and Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA.
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