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Chen D, Zhao Z, Liu P, Liu X, Wang X, Ren Q, Chang B. Adventitial Vasa Vasorum Neovascularization in Femoral Artery of Type 2 Diabetic Patients with Macroangiopathy Is Associated with Macrophages and Lymphocytes as well as the Occurrence of Cardiovascular Events. Thromb Haemost 2023; 123:989-998. [PMID: 37037199 DOI: 10.1055/s-0043-1768162] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
Abstract
OBJECTIVES This study was conducted to assess the relationship between adventitial vasa vasorum neovascularization (VVn) in femoral artery of type 2 diabetic patients with macroangiopathy and the recruitment of macrophages and lymphocytes, and to relate the density of VVn to the occurrence of cardiovascular events. MATERIALS Femoral artery samples were obtained from amputation cases. A total of 55 type 2 diabetic patients with macroangiopathy, 15 autopsy cases with type 2 diabetes without atherosclerosis. METHODS Hematoxylin and eosin (H&E) staining to observe the histopathological features; Victoria blue staining to analyze the histological features; immunohistochemistry (CD34, CD68, CD20, and CD3) to determine the VVn density and the expression of macrophages, B lymphocytes, and T lymphocytes. RESULTS Type 2 diabetic patients with macroangiopathy showed a higher mean adventitial VVn density in femoral artery (48.40 ± 9.39 no./mm2) than patients with type 2 diabetes without atherosclerosis (19.75 ± 6.28 no./mm2) (p < 0.01). In addition, the VVn density was positively associated with the expression of CD68 macrophages (r = 0.62, p < 0.01) and CD20 B lymphocytes (r = 0.59, p < 0.01). Type 2 diabetic patients with high VVn density showed more adverse cardiovascular events (27/35 vs. 8/20 events, p = 0.006). In multivariable analysis adjusted for main risk factors for cardiovascular disease, VVn was still independently associated with adverse cardiovascular events (p = 0.01). CONCLUSION VVn density in type 2 diabetic patients with macroangiopathy is positively correlated with the adventitial immune-inflammatory cell numbers and the development of atherosclerotic lesions. Furthermore, VVn density is associated with adverse cardiovascular events.
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Affiliation(s)
- Dong Chen
- Department of Oncology, Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing, People's Republic of China
| | - Zixi Zhao
- NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin, People's Republic of China
| | - Peng Liu
- Department of Surgery, Binhai New Area Hospital of Traditional Chinese Medicine, Tianjin, People's Republic of China
| | - Xinbang Liu
- NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin, People's Republic of China
| | - Xin Wang
- School of Laboratory Medicine, Hubei University of Chinese Medicine, Wuhan, People's Republic of China
| | - Qiuyue Ren
- Department of Endocrinology, The First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, People's Republic of China
| | - Bai Chang
- NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin, People's Republic of China
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Nielsen MH, Bæk R, Jorgensen MM, Mellergaard M, Handberg A. Increased extracellular vesicles (EVs) related to T cell-mediated inflammation and vascular function in familial hypercholesterolemia. ATHEROSCLEROSIS PLUS 2023; 53:16-25. [PMID: 37637934 PMCID: PMC10457578 DOI: 10.1016/j.athplu.2023.06.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 06/05/2023] [Accepted: 06/19/2023] [Indexed: 08/29/2023]
Abstract
Background and aims OxLDL modulates innate and adaptive immunity, and extracellular vesicles (EVs) released from both non-immune and immune cells are proposed key players in atherosclerosis development. In the present study, we aimed to investigate EVs expressing markers related to adaptive immunity-driven inflammation and endothelial activation/dysfunction in hypercholesterolemic patients. Methods EVs were phenotyped in thirty patients with familial hypercholesterolemia (FH) and twenty-three healthy controls using the Extracellular Vesicle (EV) Array with antibodies targeting proteins expressed on B and T cells, and endothelial cells. Results FH patients had a higher atherosclerotic burden, as determined by the mean carotid intima-media thickness (IMT) (0.64 ± 0.12 mm vs. 0.58 ± 0.07 mm; p = 0.033), higher oxLDL levels (p < 0.0001), and showed increased levels of EV-specific markers: CD9 (p = 0.017), CD63 (p = 0.045), CD81 (p = 0.003), Annexin V (p = 0.018), and EV markers related to adaptive/lymphocyte immunity: CD28 (p = 0.034), CD4 (p = 0.049), CD152 (p = 0.029), LFA-1 (p = 0.024), and endothelial function: CD62E (p = 0.032), CD144 (p = 0.018), tPA (p = 0.017), CD31 (p = 0.024). Linear regression revealed a positive relationship between carotid IMT and several of the increased markers observed within the FH group, including CD9 (β = 0.33; p = 0.022), CD63 (β = 0.35; p 225 = 0.026), CD28 (β = 0.37; p = 0.026), CD4 (β = 0.40; p = 0.025), CD152 (β = 0.41; p = 0.017), LFA-1 (β = 0.42; p = 0.014) and CD62E (β = 0.38; p = 0.024). Conclusion EVs associated with adaptive immunity and endothelial dysfunction are elevated in FH patients, and several markers related to a higher atherosclerotic burden.
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Affiliation(s)
| | - Rikke Bæk
- Clinical Immunology, Aalborg University Hospital, Aalborg, Denmark
| | - Malene Moller Jorgensen
- Clinical Immunology, Aalborg University Hospital, Aalborg, Denmark
- Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
| | - Maiken Mellergaard
- Department of Clinical Biochemistry, Aalborg University Hospital, Aalborg, Denmark
| | - Aase Handberg
- Department of Clinical Biochemistry, Aalborg University Hospital, Aalborg, Denmark
- Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
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COVID-19 and Vasa vasorum: New Atherogenic Factor? A Case Report and Autopsy Findings. Diagnostics (Basel) 2023; 13:diagnostics13061097. [PMID: 36980405 PMCID: PMC10047382 DOI: 10.3390/diagnostics13061097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 03/02/2023] [Accepted: 03/07/2023] [Indexed: 03/16/2023] Open
Abstract
Patients with COVID-19 demonstrate higher rates of cardiovascular complications, including thromboses and thromboembolism. One may suppose that the action of SARS-CoV-2 transforms stable atherosclerotic plaques into unstable status. Cardiovascular complications in COVID-19 may be caused by progressive viral alteration of the blood vessels, including Vasa vasorum. A lethal case of ischemic brain disease caused by cerebral atherosclerosis and exacerbated by a stroke during COVID-19 infection is briefly described. The results of the autopsy showed perivascular lymphocytic infiltration and signs of Vasa vasorum vasculitis with thrombi of adventitial microvasculature. The data discussed in the article are interpreted in the context of the concept giving the important role in atherogenesis to Vasa vasorum.
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Taylor JA, Hutchinson MA, Gearhart PJ, Maul RW. Antibodies in action: the role of humoral immunity in the fight against atherosclerosis. Immun Ageing 2022; 19:59. [PMID: 36461105 PMCID: PMC9717479 DOI: 10.1186/s12979-022-00316-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Accepted: 11/21/2022] [Indexed: 12/03/2022]
Abstract
The sequestering of oxidation-modified low-density lipoprotein by macrophages results in the accumulation of fatty deposits within the walls of arteries. Necrosis of these cells causes a release of intercellular epitopes and the activation of the adaptive immune system, which we predict leads to robust autoantibody production. T cells produce cytokines that act in the plaque environment and further stimulate B cell antibody production. B cells in atherosclerosis meanwhile have a mixed role based on subclass. The current model is that B-1 cells produce protective IgM antibodies in response to oxidation-specific epitopes that work to control plaque formation, while follicular B-2 cells produce class-switched antibodies (IgG, IgA, and IgE) which exacerbate the disease. Over the course of this review, we discuss further the validation of these protective antibodies while evaluating the current dogma regarding class-switched antibodies in atherosclerosis. There are several contradictory findings regarding the involvement of class-switched antibodies in the disease. We hypothesize that this is due to antigen-specificity, and not simply isotype, being important, and that a closer evaluation of these antibodies' targets should be conducted. We propose that specific antibodies may have therapeutical potential in preventing and controlling plaque development within a clinical setting.
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Affiliation(s)
- Joshua A. Taylor
- grid.419475.a0000 0000 9372 4913Laboratory of Molecular Biology and Immunology, National Institute on Aging, NIH, Baltimore, MD USA ,grid.21107.350000 0001 2171 9311Graduate Program in Immunology, Johns Hopkins University School of Medicine, Baltimore, MD USA
| | - Mark A. Hutchinson
- grid.419475.a0000 0000 9372 4913Laboratory of Molecular Biology and Immunology, National Institute on Aging, NIH, Baltimore, MD USA
| | - Patricia J. Gearhart
- grid.419475.a0000 0000 9372 4913Laboratory of Molecular Biology and Immunology, National Institute on Aging, NIH, Baltimore, MD USA
| | - Robert W. Maul
- grid.419475.a0000 0000 9372 4913Laboratory of Molecular Biology and Immunology, National Institute on Aging, NIH, Baltimore, MD USA
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Yang P, Zang G, Yan Y, Zhong W, Li B, Xu Y, Shao C, Wang Z, Pu J, Yuan W. CD137-CD137L Aggravates Calcification of Vascular Smooth Muscle Cell and Vasculature of ApoE -/- Mice Via Rab7-Mediated Autophagy. J Cardiovasc Transl Res 2022; 15:1297-1314. [PMID: 35763154 DOI: 10.1007/s12265-022-10272-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Accepted: 05/04/2022] [Indexed: 12/14/2022]
Abstract
Vascular calcification is an independent risk factor for acute cardiovascular events and a predictor of adverse prognosis; the abnormal fusion and degradation of autophagosomes and lysosomes are closely related to the calcification of VSMC and aortic AS plaque in ApoE-/- mice. Rab7 is a member of the Ras protein family and acts as a molecular switch in the fusion between autophagosomes and lysosomes. In this study, we found that the activation of the CD137-CD137L signal promoted calcification by inhibiting the expression and activity of Rab7, which regulates the degradation of autophagic cargo in vascular smooth muscle cells (VSMCs) and aortic atherosclerosis (AS) plaques in ApoE-/- mice. Knockdown of Rab7 impaired its tethering with the downstream molecule FYVE and coiled-coil containing 1 (FYCO1), which transports autophagosomes to lysosomes through microtubule motor kinesins and fuses with lysosomes to degrade the autophagic content. Overexpression of Rab7-alleviated calcification caused by the activation of the CD137 signaling pathway. In addition, FYCO1 knockdown promoted calcification even though the expression and activity of Rab7 were normal. Our results suggest that Rab7 is the target of CD137 signaling; Rab7 cannot interact with its downstream molecule FYCO1 when its activity and expression were inhibited by the activation of CD137 signaling pathway, thus inhibiting the autophagic degradation and promoting calcification.
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Affiliation(s)
- Ping Yang
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Jiangsu Province, 212001, Zhenjiang, China
- School of Medicine, Jiangsu University, Jiangsu Province, 212001, Zhenjiang, China
| | - Guangyao Zang
- School of Medicine, Jiangsu University, Jiangsu Province, 212001, Zhenjiang, China
| | - Yang Yan
- Department of Cardiology Ren Ji Hospital Affiliated to Shanghai, Jiao Tong University School of Medicine, Shanghai, China
| | - Wei Zhong
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Jiangsu Province, 212001, Zhenjiang, China
- School of Medicine, Jiangsu University, Jiangsu Province, 212001, Zhenjiang, China
| | - Bo Li
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Jiangsu Province, 212001, Zhenjiang, China
- School of Medicine, Jiangsu University, Jiangsu Province, 212001, Zhenjiang, China
| | - Yao Xu
- School of Medicine, Jiangsu University, Jiangsu Province, 212001, Zhenjiang, China
| | - Chen Shao
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Jiangsu Province, 212001, Zhenjiang, China
| | - Zhongqun Wang
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Jiangsu Province, 212001, Zhenjiang, China
| | - Jun Pu
- Department of Cardiology Ren Ji Hospital Affiliated to Shanghai, Jiao Tong University School of Medicine, Shanghai, China
| | - Wei Yuan
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Jiangsu Province, 212001, Zhenjiang, China.
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Topography of immune cell infiltration in different stages of coronary atherosclerosis revealed by multiplex immunohistochemistry. IJC HEART & VASCULATURE 2022; 44:101111. [PMID: 36820389 PMCID: PMC9938475 DOI: 10.1016/j.ijcha.2022.101111] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 08/01/2022] [Accepted: 08/14/2022] [Indexed: 01/15/2023]
Abstract
Background Aim of this study was to investigate immune cells and subsets in different stages of human coronary artery disease with a novel multiplex immunohistochemistry (mIHC) technique. Methods Human left anterior descending coronary artery specimens were analyzed: eccentric intimal thickening (N = 11), pathological intimal thickening (N = 10), fibroatheroma (N = 9), and fibrous plaque (N = 9). Eccentric intimal thickening was considered normal, and pathological intimal thickening, fibroatheroma, and fibrous plaque were considered diseased coronary arteries. Two mIHC panels, consisting of six and five primary antibodies, autofluoresence, and DAPI, were used to detect adaptive and innate immune cells. Via semi-automated analysis, (sub)types of immune cells in whole plaques and specific plaque regions were quantified. Results Increased numbers of CD3+ T cells (P < 0.001), CD20+ B cells (P = 0.013), CD68+ macrophages (P = 0.003), CD15+ neutrophils (P = 0.017), and CD31+ endothelial cells (P = 0.024) were identified in intimas of diseased coronary arteries compared to normal. Subset analyses of T cells and macrophages showed that diseased coronary arteries contained an abundance of CD3+CD8- non-cytotoxic T cells and CD68+CD206- non-M2-like macrophages. Proportions of CD3+CD45RO+ memory T cells were similar to normal coronary arteries. Among pathological intimal thickening, fibroatheroma, and fibrous plaque, all immune cell numbers and subsets were similar. Conclusions The type of immune response does not differ substantially between different stages of plaque development and may provide context for mechanistic research into immune cell function in atherosclerosis. We provide the first comprehensive map of immune cell subtypes across plaque types in coronary arteries demonstrating the potential of mIHC for vascular research.
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Bellini R, Bonacina F, Norata GD. Crosstalk between dendritic cells and T lymphocytes during atherogenesis: Focus on antigen presentation and break of tolerance. Front Cardiovasc Med 2022; 9:934314. [PMID: 35966516 PMCID: PMC9365967 DOI: 10.3389/fcvm.2022.934314] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Accepted: 07/05/2022] [Indexed: 12/14/2022] Open
Abstract
Atherosclerosis is a chronic disease resulting from an impaired lipid and immune homeostasis, where the interaction between innate and adaptive immune cells leads to the promotion of atherosclerosis-associated immune-inflammatory response. Emerging evidence has suggested that this response presents similarities to the reactivity of effector immune cells toward self-epitopes, often as a consequence of a break of tolerance. In this context, dendritic cells, a heterogeneous population of antigen presenting cells, play a key role in instructing effector T cells to react against foreign antigens and T regulatory cells to maintain tolerance against self-antigens and/or to patrol for self-reactive effector T cells. Alterations in this delicate balance appears to contribute to atherogenesis. The aim of this review is to discuss different DC subsets, and their role in atherosclerosis as well as in T cell polarization. Moreover, we will discuss how loss of T cell tolerogenic phenotype participates to the immune-inflammatory response associated to atherosclerosis and how a better understanding of these mechanisms might result in designing immunomodulatory therapies targeting DC-T cell crosstalk for the treatment of atherosclerosis-related inflammation.
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Affiliation(s)
- Rossella Bellini
- Department of Pharmacological and Biomolecular Sciences, University of Milan, Milan, Italy
| | - Fabrizia Bonacina
- Department of Pharmacological and Biomolecular Sciences, University of Milan, Milan, Italy
- *Correspondence: Fabrizia Bonacina,
| | - Giuseppe Danilo Norata
- Department of Pharmacological and Biomolecular Sciences, University of Milan, Milan, Italy
- Center for the Study of Atherosclerosis, E. Bassini Hospital, Cinisello Balsamo, Milan, Italy
- Giuseppe Danilo Norata,
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Sun T, Wang F, He Y, Mao B, Han M, Liu H, Zhao P, Li X, Wang D. Enlarged Pericarotid Lymph Nodes Suggest Recent Ischemic Symptoms in Patients with Carotid Atherosclerosis. Front Immunol 2022; 13:900642. [PMID: 35903093 PMCID: PMC9315152 DOI: 10.3389/fimmu.2022.900642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 06/23/2022] [Indexed: 11/17/2022] Open
Abstract
Atherosclerosis is a chronic inflammatory disease closely associated with immunological activity. Lymph nodes (LNs) are essential secondary lymphoid organs, in which complex immune responses occur. Enlarged LNs are commonly observed around inflamed tissues or tumors; however, their role in atherosclerosis is not well understood. We hypothesized that enlarged pericarotid LNs would be present in symptomatic patients with carotid atherosclerosis. Therefore, we recorded the size of LNs around the carotid artery during surgery in patients undergoing carotid endarterectomy (CEA) for carotid atherosclerotic stenosis. Patients were stratified by enlarged LNs, defined as a diameter ≥ 10mm in the transverse diameters. Demographic and clinical data of participants were measured and analyzed. Hematoxylin and eosin (H&E), Sirius red, DAB-enhanced Perls’ Prussian blue, alizarin red, and immunohistochemistry (IHC) staining were performed for composition identification of plaques or LNs. Symptomatic patients were defined as those presenting with an ipsilateral cerebral ischemic event. Compared with patients with non-enlarged LNs, patients with enlarged LNs were more likely to be symptomatic (22/32, 68.8% versus 9/40, 22.5%, P < 0.001) and use calcium channel blocker drugs (17/32, 53.1% versus 10/40, 25%, P=0.014). In addition, they showed lower body mass index (mean ± SD: 24.00 ± 2.66 versus 25.34 ± 2.56 kg/m2, P=0.034), lower weight (median [interquartile range]: 64 [60.00-76.00] versus 72.5 [65.00-77.50] Kg, P = 0.046) and higher diastolic blood pressure (mean ± SD: 78.94 ± 9.30 versus 73.93 ± 8.84 mmHg, P = 0.022). The plague from patients with enlarged LNs exhibited a lower relative percentage of fibrous tissue (29.49 ± 10.73% versus 34.62 ± 10.33%, P = 0.041). The enlarged LNs remained oval-shaped by visual inspection. Compared to non-enlarged LNs, the predominant changes in enlarged LNs were atrophic lymphatic sinuses and dilated LNs parenchyma. Enlarged LNs contained more germinal centers and lymphocytes. In conclusion, symptomatic patients with carotid atherosclerosis have enlarged pericarotid LNs. The current study supports the conclusion that enlarged LNs with an activated and enhanced adaptive immune response may indicate plaque instability. Pericarotid LNs will be a promising marker of plaque stability and may be a potential therapeutic target in patients with carotid atherosclerosis.
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Affiliation(s)
- Tao Sun
- Department of Neurosurgery, Qilu Hospital of Shandong University, Cheeloo College of Medicine, Shandong University, Jinan, China
- Institute of Brain and Brain-Inspired Science, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Fei Wang
- Department of Neurosurgery, Qilu Hospital of Shandong University, Cheeloo College of Medicine, Shandong University, Jinan, China
- Institute of Brain and Brain-Inspired Science, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Yiming He
- Department of Neurosurgery, Qilu Hospital of Shandong University, Cheeloo College of Medicine, Shandong University, Jinan, China
- Institute of Brain and Brain-Inspired Science, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Bo Mao
- Department of Neurosurgery, Qilu Hospital of Shandong University, Cheeloo College of Medicine, Shandong University, Jinan, China
- Institute of Brain and Brain-Inspired Science, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Mengtao Han
- Department of Neurosurgery, Qilu Hospital of Shandong University, Cheeloo College of Medicine, Shandong University, Jinan, China
- Institute of Brain and Brain-Inspired Science, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Han Liu
- Institute of Brain and Brain-Inspired Science, Cheeloo College of Medicine, Shandong University, Jinan, China
- Department of Critical Care Medicine, Qilu Hospital of Shandong University, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Peng Zhao
- Department of Neurosurgery, Qilu Hospital of Shandong University, Cheeloo College of Medicine, Shandong University, Jinan, China
- Institute of Brain and Brain-Inspired Science, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Xingang Li
- Department of Neurosurgery, Qilu Hospital of Shandong University, Cheeloo College of Medicine, Shandong University, Jinan, China
- Institute of Brain and Brain-Inspired Science, Cheeloo College of Medicine, Shandong University, Jinan, China
- *Correspondence: Xingang Li, ; Donghai Wang,
| | - Donghai Wang
- Department of Neurosurgery, Qilu Hospital of Shandong University, Cheeloo College of Medicine, Shandong University, Jinan, China
- Institute of Brain and Brain-Inspired Science, Cheeloo College of Medicine, Shandong University, Jinan, China
- *Correspondence: Xingang Li, ; Donghai Wang,
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Li GQ, Liu XM, Liu BL, Zhong Y, Gu QW, Miao JJ, Wang J, Liu S, Mao XM. High triiodothyronine levels induce myocardial hypertrophy via BAFF overexpression. J Cell Mol Med 2022; 26:4453-4462. [PMID: 35808902 PMCID: PMC9357614 DOI: 10.1111/jcmm.17470] [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: 03/15/2022] [Revised: 06/13/2022] [Accepted: 06/18/2022] [Indexed: 11/27/2022] Open
Abstract
Activated B cells contribute to heart diseases, and inhibition of B‐cell activating factor (BAFF) expression is an effective therapeutic target for heart diseases. Whether activated B cells participate in the development and progression of hyperthyroid heart disease, and what induces B cells activation in hyperthyroidism are unknown. The present study aimed to determine the roles of BAFF overexpression induced by high concentrations of triiodothyronine (T3) in the pathogenesis of hyperthyroid heart disease. Female C57BL/6J mice were subcutaneously injected with T3 for 6 weeks, and BAFF expression was inhibited using shRNA. Protein and mRNA expression of BAFF in mouse heart tissues evaluated via immunohistochemistry, western blotting and polymerase chain reaction (PCR). Proportions of B cells in mouse cardiac tissue lymphocytes were quantified via flow cytometry. Morphology and left ventricle function were assessed using pathological sections and echocardiography, respectively. Here, we demonstrate that compared with the control group, the proportion of myocardial B cells was larger in the T3 group; immunohistochemistry, western blotting and PCR analyses revealed increased protein and mRNA expression levels of TNF‐α and BAFF in heart tissues of the T3 group. Compared with the normal controls group, in the T3 group, the diameter of myocardial cells and some echocardiographic values significantly increased and hypertrophy and structural disorder were noticeable. Our results revealed that elevated levels of circulating T3 can promote the expression of BAFF in myocardial cells and can lead to B‐cell activation, an elevated inflammatory response and ventricular remodelling.
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Affiliation(s)
- Guo-Qing Li
- Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Xiao-Mei Liu
- Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Bing-Li Liu
- Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Yi Zhong
- Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Qing-Wei Gu
- Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Jing-Jing Miao
- Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Jie Wang
- Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Shu Liu
- Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Xiao-Ming Mao
- Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
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Tomas L, Prica F, Schulz C. Trafficking of Mononuclear Phagocytes in Healthy Arteries and Atherosclerosis. Front Immunol 2021; 12:718432. [PMID: 34759917 PMCID: PMC8573388 DOI: 10.3389/fimmu.2021.718432] [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: 05/31/2021] [Accepted: 09/30/2021] [Indexed: 12/15/2022] Open
Abstract
Monocytes and macrophages play essential roles in all stages of atherosclerosis – from early precursor lesions to advanced stages of the disease. Intima-resident macrophages are among the first cells to be confronted with the influx and retention of apolipoprotein B-containing lipoproteins at the onset of hypercholesterolemia and atherosclerosis development. In this review, we outline the trafficking of monocytes and macrophages in and out of the healthy aorta, as well as the adaptation of their migratory behaviour during hypercholesterolemia. Furthermore, we discuss the functional and ontogenetic composition of the aortic pool of mononuclear phagocytes and its link to the atherosclerotic disease process. The development of mouse models of atherosclerosis regression in recent years, has enabled scientists to investigate the behaviour of monocytes and macrophages during the resolution of atherosclerosis. Herein, we describe the dynamics of these mononuclear phagocytes upon cessation of hypercholesterolemia and how they contribute to the restoration of tissue homeostasis. The aim of this review is to provide an insight into the trafficking, fate and disease-relevant dynamics of monocytes and macrophages during atherosclerosis, and to highlight remaining questions. We focus on the results of rodent studies, as analysis of cellular fates requires experimental manipulations that cannot be performed in humans but point out findings that could be replicated in human tissues. Understanding of the biology of macrophages in atherosclerosis provides an important basis for the development of therapeutic strategies to limit lesion formation and promote plaque regression.
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Affiliation(s)
- Lukas Tomas
- Department of Medicine I, University Hospital, Ludwig Maximilian University, Munich, Germany.,DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany
| | - Filip Prica
- Department of Medicine I, University Hospital, Ludwig Maximilian University, Munich, Germany.,DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany
| | - Christian Schulz
- Department of Medicine I, University Hospital, Ludwig Maximilian University, Munich, Germany.,DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany
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Rodríguez-Carrio J, Carrillo-López N, Ulloa C, Martín-Carro B, Rodríguez-Suárez C, Naves-Díaz M, Sánchez-Álvarez E, Rodríguez-García M, Arcidiacono MV, Fernández-Mariño B, Cannata-Andía JB, Suárez A, Dusso AS. Novel Immune Cell Subsets Exhibit Different Associations With Vascular Outcomes in Chronic Kidney Disease Patients-Identifying Potential Biomarkers. Front Med (Lausanne) 2021; 8:618286. [PMID: 34113627 PMCID: PMC8185045 DOI: 10.3389/fmed.2021.618286] [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: 10/16/2020] [Accepted: 04/07/2021] [Indexed: 11/17/2022] Open
Abstract
Background and Aims: Alterations in novel immune cell subsets, such as angiogenic T cells (Tang), senescent T cells (CD4+CD28null), and monocyte subsets are associated with impaired vascular homeostasis in several inflammatory conditions. However, mediators underlying vascular deterioration in chronic kidney disease (CKD) are poorly characterized. This study assessed their role in the vascular deterioration of CKD using a broad spectrum of surrogate markers ranging from altered functionality to overt calcification. Methods: Tang (CD3+CD31+CXCR4+), CD4+CD28null cells, and monocytes [CD14/CD16 subsets and angiotensin-converting enzyme (ACE) expression] were measured in peripheral blood by flow cytometry in 33 CKD stage 5 patients undergoing peritoneal dialysis (CKD5-PD) and 15 healthy controls (HCs). Analyses were replicated in a hemodialysis cohort. Vascular surrogate markers (including adventitial vasa vasorum, pulse wave velocity, intima-media thickness, and vascular calcification) were assessed by appropriate imaging methods. Results: In CKD5-PD, decreased Tang levels (p < 0.001) were unrelated to clinical features or traditional cardiovascular (CV) risk factors but correlated negatively with troponin T levels (r = −0.550, p = 0.003). Instead, CD4+CD28null frequency was increased (p < 0.001), especially in those with vascular calcifications. Quantitative and qualitative differences were also observed within the monocyte pool, a shift toward CD16+ subsets and ACE expression being found in CKD. Equivalent results were observed in the replication cohort. Each subset associated distinctly with adverse vascular outcomes in univariate and multivariate analyses: while Tang depletion was linked to poor vascular function and subclinical atherosclerosis, increases in CD4+CD28null were associated with overt vascular thickening and calcification. Monocytes were not independently associated with vascular outcomes in CKD patients. Conclusions: Novel T cell and monocyte subsets are altered in CKD. Altered T-cell subpopulations, but not monocytes, exhibited distinct associations with different vascular outcomes in CKD. Tang are emerging biomarkers of subclinical vascular deterioration in CKD.
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Affiliation(s)
- Javier Rodríguez-Carrio
- Area of Immunology, Department of Functional Biology, University of Oviedo, Oviedo, Spain.,Bone and Mineral Research Unit, Hospital Universitario Central de Asturias, Oviedo, Spain.,Instituto de Investigación Sanitaria del Principado de Asturias, Oviedo, Spain
| | - Natalia Carrillo-López
- Bone and Mineral Research Unit, Hospital Universitario Central de Asturias, Oviedo, Spain.,Instituto de Investigación Sanitaria del Principado de Asturias, Oviedo, Spain.,REDinREN-ISCIII, Oviedo, Spain
| | - Catalina Ulloa
- Bone and Mineral Research Unit, Hospital Universitario Central de Asturias, Oviedo, Spain.,Department of Nephrology, Hospital Universitario de Cabueñes, Gijón, Spain
| | - Beatriz Martín-Carro
- Bone and Mineral Research Unit, Hospital Universitario Central de Asturias, Oviedo, Spain.,Instituto de Investigación Sanitaria del Principado de Asturias, Oviedo, Spain.,REDinREN-ISCIII, Oviedo, Spain
| | | | - Manuel Naves-Díaz
- Bone and Mineral Research Unit, Hospital Universitario Central de Asturias, Oviedo, Spain.,Instituto de Investigación Sanitaria del Principado de Asturias, Oviedo, Spain.,REDinREN-ISCIII, Oviedo, Spain
| | - Emilio Sánchez-Álvarez
- REDinREN-ISCIII, Oviedo, Spain.,Department of Nephrology, Hospital Universitario de Cabueñes, Gijón, Spain
| | - Minerva Rodríguez-García
- REDinREN-ISCIII, Oviedo, Spain.,Division of Nephrology, Hospital Universitario Central de Asturias, Oviedo, Spain
| | | | | | - Jorge B Cannata-Andía
- Bone and Mineral Research Unit, Hospital Universitario Central de Asturias, Oviedo, Spain.,Instituto de Investigación Sanitaria del Principado de Asturias, Oviedo, Spain.,REDinREN-ISCIII, Oviedo, Spain.,Department of Medicine, University of Oviedo, Oviedo, Spain
| | - Ana Suárez
- Area of Immunology, Department of Functional Biology, University of Oviedo, Oviedo, Spain.,Department of Medicine, University of Oviedo, Oviedo, Spain
| | - Adriana S Dusso
- Bone and Mineral Research Unit, Hospital Universitario Central de Asturias, Oviedo, Spain.,Instituto de Investigación Sanitaria del Principado de Asturias, Oviedo, Spain.,REDinREN-ISCIII, Oviedo, Spain.,Department of Medicine, University of Oviedo, Oviedo, Spain
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12
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Hume DA, Caruso M, Keshvari S, Patkar OL, Sehgal A, Bush SJ, Summers KM, Pridans C, Irvine KM. The Mononuclear Phagocyte System of the Rat. THE JOURNAL OF IMMUNOLOGY 2021; 206:2251-2263. [PMID: 33965905 DOI: 10.4049/jimmunol.2100136] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Accepted: 03/01/2021] [Indexed: 12/14/2022]
Abstract
The laboratory rat continues to be the model of choice for many studies of physiology, behavior, and complex human diseases. Cells of the mononuclear phagocyte system (MPS; monocytes, macrophages, and dendritic cells) are abundant residents in every tissue in the body and regulate postnatal development, homeostasis, and innate and acquired immunity. Recruitment and proliferation of MPS cells is an essential component of both initiation and resolution of inflammation. The large majority of current knowledge of MPS biology is derived from studies of inbred mice, but advances in technology and resources have eliminated many of the advantages of the mouse as a model. In this article, we review the tools available and the current state of knowledge of development, homeostasis, regulation, and diversity within the MPS of the rat.
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Affiliation(s)
- David A Hume
- Mater Research Institute-University of Queensland, Translational Research Institute, Brisbane, Queensland, Australia
| | - Melanie Caruso
- Mater Research Institute-University of Queensland, Translational Research Institute, Brisbane, Queensland, Australia
| | - Sahar Keshvari
- Mater Research Institute-University of Queensland, Translational Research Institute, Brisbane, Queensland, Australia
| | - Omkar L Patkar
- Mater Research Institute-University of Queensland, Translational Research Institute, Brisbane, Queensland, Australia
| | - Anuj Sehgal
- Mater Research Institute-University of Queensland, Translational Research Institute, Brisbane, Queensland, Australia
| | - Stephen J Bush
- Nuffield Department of Clinical Medicine, John Radcliffe Hospital, University of Oxford, Oxford, United Kingdom
| | - Kim M Summers
- Mater Research Institute-University of Queensland, Translational Research Institute, Brisbane, Queensland, Australia
| | - Clare Pridans
- Centre for Inflammation Research, University of Edinburgh, Edinburgh, United Kingdom.,Simons Initiative for the Developing Brain, Centre for Discovery Brain Sciences, University of Edinburgh, Edinburgh, United Kingdom
| | - Katharine M Irvine
- Mater Research Institute-University of Queensland, Translational Research Institute, Brisbane, Queensland, Australia
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13
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Mohmmad‐Rezaei M, Arefnezhad R, Ahmadi R, Abdollahpour‐Alitappeh M, Mirzaei Y, Arjmand M, Ferns GA, Bashash D, Bagheri N. An overview of the innate and adaptive immune system in atherosclerosis. IUBMB Life 2020. [DOI: 10.1002/iub.2425] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Mina Mohmmad‐Rezaei
- Cellular and Molecular Research Center, Basic Health Sciences Institute Shahrekord University of Medical Sciences Shahrekord Iran
| | - Reza Arefnezhad
- Halal Research Center of IRI, FDA Tehran Iran
- Department of Anatomy, School of Medicine Shiraz University of Medical Sciences Shiraz Iran
| | - Reza Ahmadi
- Clinical Biochemistry Research Center, Basic Health Sciences Institute Shahrekord University of Medical Sciences Shahrekord Iran
| | | | - Yousef Mirzaei
- Department of Biogeosciences, Scientific Research Center Soran University Soran Iraq
| | - Mohammad‐Hassan Arjmand
- Cellular and Molecular Research Center, Basic Health Sciences Institute Shahrekord University of Medical Sciences Shahrekord Iran
- Cancer Research Center Shahrekord University of Medical Sciences Shahrekord Iran
| | - Gordon A. Ferns
- Brighton & Sussex Medical School, Division of Medical Education Sussex United Kingdom
| | - Davood Bashash
- Department of Hematology and Blood Banking, School of Allied Medical Sciences Shahid Beheshti University of Medical Sciences Tehran Iran
| | - Nader Bagheri
- Cellular and Molecular Research Center, Basic Health Sciences Institute Shahrekord University of Medical Sciences Shahrekord Iran
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14
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Presence of vasa vasorum in human intracranial aneurysms. Acta Neurochir (Wien) 2020; 162:2283-2293. [PMID: 32696328 DOI: 10.1007/s00701-020-04502-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Accepted: 07/15/2020] [Indexed: 02/05/2023]
Abstract
OBJECTIVES Vasa vasorum is associated with the pathogenesis of various cerebrovascular diseases, but its presence in intracranial aneurysms (IA) and its ability to act as a predicting factor of IA rupture remain unrevealed. METHODS Histological investigation was performed for 3 middle meningeal arteries and 25 human IAs that were sequentially collected from 2017 to 2019. Relevant medical information was collected from the hospital information and imaging system. Fisher's exact tests and Student's t tests were performed to identify the histological and clinical differences between aneurysms with and without vasa vasorum. RESULTS Vasa vasorum were present in 14/25 (56%) aneurysm samples. They were detected at a similar frequency in male patients (4/9, 44.4%) and (10/16, 62.5%) female patients. Patients with vasa vasorum present aneurysms (47.07 ± 3.668 years, n = 14) or vasa vasorum absent aneurysms (50.27 ± 2.289 years, n = 11) did not differ in age (p = 0.49). True aneurysms and pseudoaneurysms also shared a similar rate of vasa vasorum presence (10/16, 62.5% in true aneurysms vs 4/9, 44.4% in pseudoaneurysms). The average size of aneurysms with vasa vasorum varied from 21.70 to 3.00 mm, and no statistical difference in size was detected when comparing aneurysms with and without vasa vasorum (p = 0.71). The vasa vasorum in almost all IAs had uniform vascular trajectory with occasional exceptions. The presence of vasa vasorum appears to be tightly associated with important histopathological changes of myointimal hyperplasia and increased immune cell infiltration in IAs (both p value < 0.05), though it does not appear to be indicative of IA rupture or other rupture-related histological degenerations (all p values > 0.05). CONCLUSIONS The presence of vasa vasorum is common in IAs. While it is associated with aneurysm wall remodeling and robust inflammatory cell infiltration, our results indicate that it is not a single specific marker of rupture-prone aneurysms.
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15
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Low frequency of IL-10 + B cells in patients with atherosclerosis is related with inflammatory condition. Heliyon 2020; 6:e03441. [PMID: 32154409 PMCID: PMC7057201 DOI: 10.1016/j.heliyon.2020.e03441] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 09/11/2019] [Accepted: 02/14/2020] [Indexed: 12/13/2022] Open
Abstract
Background and aims B cells involvement in animal models of atherosclerosis has been unequivocally established. However, the role of these cells in patients with atherosclerosis is almost unknown. Besides the production of antibodies, B cells can also exhibit regulatory functions mainly through IL-10. Here, we characterized human B cell subsets, their production of IL-10 in patients with atherosclerosis and their potential association with inflammation. Methods Patients with confirmed atherosclerotic events and controls with low cardiovascular risk were included. B cells subsets were determined in mononuclear cells (PBMC) using flow cytometry. PBMC were cultured ex vivo (5 h) and in vitro (48 h) to determine IL-10+ B cells and in some cases TNF-α+ and IFN-γ+ CD4+ T cells. The inflammatory state of the participants was determined through high sensitivity C reactive protein levels. Results Increase in percentage and number of plasmablasts was observed in patients with atherosclerosis compared with controls. A decreased frequency of IL-10+ B cells was observed in patients, both in ex vivo and in vitro cultures. This decrease was detected in transitional, memory, and plasmablast subsets. Interestingly, the reduction of IL-10+ B cells negatively and significantly correlated with the inflammatory condition of the studied subjects and associated with an increased frequency of TNF-α+ and IFN-γ+ CD4+ T cells. The blockade of IL-10R did not show further effect in T cells activation. Conclusions There is an association between the inflammatory state and a reduction of IL-10+ B cells that could contribute to the development of atherosclerosis.
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16
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Milutinović A, Šuput D, Zorc-Pleskovič R. Pathogenesis of atherosclerosis in the tunica intima, media, and adventitia of coronary arteries: An updated review. Bosn J Basic Med Sci 2020; 20:21-30. [PMID: 31465719 PMCID: PMC7029210 DOI: 10.17305/bjbms.2019.4320] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Accepted: 07/31/2019] [Indexed: 02/07/2023] Open
Abstract
Atherosclerosis is a chronic inflammatory disease of arteries and it affects the structure and function of all three layers of the coronary artery wall. Current theories suggest that the dysfunction of endothelial cells is one of the initial steps in the development of atherosclerosis. The view that the tunica intima normally consists of a single layer of endothelial cells attached to the subendothelial layer and internal elastic membrane has been questioned in recent years. The structure of intima changes with age and it becomes multilayered due to migration of smooth muscle cells from the media to intima. At this stage, the migration and proliferation of smooth muscle cells do not cause pathological changes in the intima. The multilayering of intima is classically considered to be an important stage in the development of atherosclerosis, but in fact atherosclerotic plaques develop only focally due to the interplay of various processes that involve the resident and invading inflammatory cells. The tunica media consists of multiple layers of smooth muscle cells that produce the extracellular matrix, and this layer normally does not contain microvessels. During the development of atherosclerosis, the microvessels from the tunica adventitia or from the lumen may penetrate thickened media to provide nutrition and oxygenation. According to some theories, the endothelial dysfunction of these nutritive vessels may significantly contribute to the atherosclerosis of coronary arteries. The adventitia contains fibroblasts, progenitor cells, immune cells, microvessels, and adrenergic nerves. The degree of inflammatory cell infiltration into the adventitia, which can lead to the formation of tertiary lymphoid organs, correlates with the severity of atherosclerotic plaques. Coronary arteries are surrounded by perivascular adipose tissue that also participates in the atherosclerotic process.
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Affiliation(s)
- Aleksandra Milutinović
- Institute of Histology and Embryology, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia.
| | - Dušan Šuput
- Institute of Pathophysiology, Medical Faculty, University of Ljubljana, Ljubljana, Slovenia.
| | - Ruda Zorc-Pleskovič
- Institute of Histology and Embryology, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia; International Center for Cardiovascular Diseases MC Medicor d.d., Izola, Slovenia.
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17
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Lee JG, Ha CH, Yoon B, Cheong SA, Kim G, Lee DJ, Woo DC, Kim YH, Nam SY, Lee SW, Sung YH, Baek IJ. Knockout rat models mimicking human atherosclerosis created by Cpf1-mediated gene targeting. Sci Rep 2019; 9:2628. [PMID: 30796231 PMCID: PMC6385241 DOI: 10.1038/s41598-019-38732-2] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2018] [Accepted: 01/08/2019] [Indexed: 12/19/2022] Open
Abstract
The rat is a time-honored traditional experimental model animal, but its use is limited due to the difficulty of genetic modification. Although engineered endonucleases enable us to manipulate the rat genome, it is not known whether the newly identified endonuclease Cpf1 system is applicable to rats. Here we report the first application of CRISPR-Cpf1 in rats and investigate whether Apoe knockout rat can be used as an atherosclerosis model. We generated Apoe- and/or Ldlr-deficient rats via CRISPR-Cpf1 system, characterized by high efficiency, successful germline transmission, multiple gene targeting capacity, and minimal off-target effect. The resulting Apoe knockout rats displayed hyperlipidemia and aortic lesions. In partially ligated carotid arteries of rats and mice fed with high-fat diet, in contrast to Apoe knockout mice showing atherosclerotic lesions, Apoe knockout rats showed only adventitial immune infiltrates comprising T lymphocytes and mainly macrophages with no plaque. In addition, adventitial macrophage progenitor cells (AMPCs) were more abundant in Apoe knockout rats than in mice. Our data suggest that the Cpf1 system can target single or multiple genes efficiently and specifically in rats with genetic heritability and that Apoe knockout rats may help understand initial-stage atherosclerosis.
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Affiliation(s)
- Jong Geol Lee
- ConveRgence mEDIcine research cenTer (CREDIT), Asan Institute for Life Sciences, Asan Medical Center, Seoul, Republic of Korea
- Biomedical Research Center, Asan Institute for Life Sciences, Asan Medical Center, Seoul, Republic of Korea
- College of Veterinary Medicine, Chungbuk National University, Cheongju, Republic of Korea
| | - Chang Hoon Ha
- Biomedical Research Center, Asan Institute for Life Sciences, Asan Medical Center, Seoul, Republic of Korea
- Department of Convergence Medicine, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea
| | - Bohyun Yoon
- Biomedical Research Center, Asan Institute for Life Sciences, Asan Medical Center, Seoul, Republic of Korea
| | - Seung-A Cheong
- ConveRgence mEDIcine research cenTer (CREDIT), Asan Institute for Life Sciences, Asan Medical Center, Seoul, Republic of Korea
| | - Globinna Kim
- ConveRgence mEDIcine research cenTer (CREDIT), Asan Institute for Life Sciences, Asan Medical Center, Seoul, Republic of Korea
- Biomedical Research Center, Asan Institute for Life Sciences, Asan Medical Center, Seoul, Republic of Korea
- Department of Convergence Medicine, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea
| | - Doo Jae Lee
- Biomedical Research Center, Asan Institute for Life Sciences, Asan Medical Center, Seoul, Republic of Korea
| | - Dong-Cheol Woo
- ConveRgence mEDIcine research cenTer (CREDIT), Asan Institute for Life Sciences, Asan Medical Center, Seoul, Republic of Korea
- Biomedical Research Center, Asan Institute for Life Sciences, Asan Medical Center, Seoul, Republic of Korea
- Department of Convergence Medicine, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea
| | - Young-Hak Kim
- Department of Cardiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea
| | - Sang-Yoon Nam
- College of Veterinary Medicine, Chungbuk National University, Cheongju, Republic of Korea
| | - Sang-Wook Lee
- ConveRgence mEDIcine research cenTer (CREDIT), Asan Institute for Life Sciences, Asan Medical Center, Seoul, Republic of Korea.
- Department of Radiation Oncology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea.
| | - Young Hoon Sung
- ConveRgence mEDIcine research cenTer (CREDIT), Asan Institute for Life Sciences, Asan Medical Center, Seoul, Republic of Korea.
- Biomedical Research Center, Asan Institute for Life Sciences, Asan Medical Center, Seoul, Republic of Korea.
- Department of Convergence Medicine, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea.
| | - In-Jeoung Baek
- ConveRgence mEDIcine research cenTer (CREDIT), Asan Institute for Life Sciences, Asan Medical Center, Seoul, Republic of Korea.
- Biomedical Research Center, Asan Institute for Life Sciences, Asan Medical Center, Seoul, Republic of Korea.
- Department of Convergence Medicine, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea.
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18
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Sedding DG, Boyle EC, Demandt JAF, Sluimer JC, Dutzmann J, Haverich A, Bauersachs J. Vasa Vasorum Angiogenesis: Key Player in the Initiation and Progression of Atherosclerosis and Potential Target for the Treatment of Cardiovascular Disease. Front Immunol 2018; 9:706. [PMID: 29719532 PMCID: PMC5913371 DOI: 10.3389/fimmu.2018.00706] [Citation(s) in RCA: 145] [Impact Index Per Article: 24.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Accepted: 03/22/2018] [Indexed: 01/08/2023] Open
Abstract
Plaque microvascularization and increased endothelial permeability are key players in the development of atherosclerosis, from the initial stages of plaque formation to the occurrence of acute cardiovascular events. First, endothelial dysfunction and increased permeability facilitate the entry of diverse inflammation-triggering molecules and particles such as low-density lipoproteins into the artery wall from the arterial lumen and vasa vasorum (VV). Recognition of entering particles by resident phagocytes in the vessel wall triggers a maladaptive inflammatory response that initiates the process of local plaque formation. The recruitment and accumulation of inflammatory cells and the subsequent release of several cytokines, especially from resident macrophages, stimulate the expansion of existing VV and the formation of new highly permeable microvessels. This, in turn, exacerbates the deposition of pro-inflammatory particles and results in the recruitment of even more inflammatory cells. The progressive accumulation of leukocytes in the intima, which trigger proliferation of smooth muscle cells in the media, results in vessel wall thickening and hypoxia, which further stimulates neoangiogenesis of VV. Ultimately, this highly inflammatory environment damages the fragile plaque microvasculature leading to intraplaque hemorrhage, plaque instability, and eventually, acute cardiovascular events. This review will focus on the pivotal roles of endothelial permeability, neoangiogenesis, and plaque microvascularization by VV during plaque initiation, progression, and rupture. Special emphasis will be given to the underlying molecular mechanisms and potential therapeutic strategies to selectively target these processes.
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Affiliation(s)
- Daniel G Sedding
- Department of Cardiology and Angiology, Hannover Medical School, Hannover, Germany
| | - Erin C Boyle
- Department of Cardiothoracic, Transplantation, and Vascular Surgery, Hannover Medical School, Hannover, Germany
| | - Jasper A F Demandt
- Department of Pathology, Cardiovascular Research Institute Maastricht, Maastricht University, Maastricht, Netherlands
| | - Judith C Sluimer
- Department of Pathology, Cardiovascular Research Institute Maastricht, Maastricht University, Maastricht, Netherlands.,BHF Centre for Cardiovascular Science, Edinburgh University, Edinburgh, United Kingdom
| | - Jochen Dutzmann
- Department of Cardiology and Angiology, Hannover Medical School, Hannover, Germany
| | - Axel Haverich
- Department of Cardiothoracic, Transplantation, and Vascular Surgery, Hannover Medical School, Hannover, Germany
| | - Johann Bauersachs
- Department of Cardiology and Angiology, Hannover Medical School, Hannover, Germany
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19
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You AYF, Bergholt MS, St-Pierre JP, Kit-Anan W, Pence IJ, Chester AH, Yacoub MH, Bertazzo S, Stevens MM. Raman spectroscopy imaging reveals interplay between atherosclerosis and medial calcification in the human aorta. SCIENCE ADVANCES 2017; 3:e1701156. [PMID: 29226241 PMCID: PMC5721727 DOI: 10.1126/sciadv.1701156] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Accepted: 11/09/2017] [Indexed: 05/21/2023]
Abstract
Medial calcification in the human aorta accumulates during aging and is known to be aggravated in several diseases. Atherosclerosis, another major cause of cardiovascular calcification, shares some common aggravators. However, the mechanisms of cardiovascular calcification remain poorly understood. To elucidate the relationship between medial aortic calcification and atherosclerosis, we characterized the cross-sectional distributions of the predominant minerals in aortic tissue, apatite and whitlockite, and the associated extracellular matrix. We also compared the cellular changes between atherosclerotic and nonatherosclerotic human aortic tissues. This was achieved through the development of Raman spectroscopy imaging methods that adapted algorithms to distinguish between the major biomolecules present within these tissues. We present a relationship between apatite, cholesterol, and triglyceride in atherosclerosis, with the relative amount of all molecules concurrently increased in the atherosclerotic plaque. Further, the increase in apatite was disproportionately large in relation to whitlockite in the aortic media directly underlying a plaque, indicating that apatite is more pathologically significant in atherosclerosis-aggravated medial calcification. We also discovered a reduction of β-carotene in the whole aortic intima, including a plaque in atherosclerotic aortic tissues compared to nonatherosclerotic tissues. This unprecedented biomolecular characterization of the aortic tissue furthers our understanding of pathological and physiological cardiovascular calcification events in humans.
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Affiliation(s)
- Amanda Y. F. You
- Department of Materials, Imperial College London, London SW7 2AZ, UK
- Department of Bioengineering, Imperial College London, London SW7 2AZ, UK
- Institute of Biomedical Engineering, Imperial College London, London SW7 2AZ, UK
| | - Mads S. Bergholt
- Department of Materials, Imperial College London, London SW7 2AZ, UK
- Department of Bioengineering, Imperial College London, London SW7 2AZ, UK
- Institute of Biomedical Engineering, Imperial College London, London SW7 2AZ, UK
| | - Jean-Philippe St-Pierre
- Department of Materials, Imperial College London, London SW7 2AZ, UK
- Department of Bioengineering, Imperial College London, London SW7 2AZ, UK
- Institute of Biomedical Engineering, Imperial College London, London SW7 2AZ, UK
| | - Worrapong Kit-Anan
- Department of Materials, Imperial College London, London SW7 2AZ, UK
- Department of Bioengineering, Imperial College London, London SW7 2AZ, UK
- Institute of Biomedical Engineering, Imperial College London, London SW7 2AZ, UK
| | - Isaac J. Pence
- Department of Materials, Imperial College London, London SW7 2AZ, UK
- Department of Bioengineering, Imperial College London, London SW7 2AZ, UK
- Institute of Biomedical Engineering, Imperial College London, London SW7 2AZ, UK
| | - Adrian H. Chester
- National Heart and Lung Institute, Harefield Heart Science Centre, Imperial College London, Harefield, Middlesex UB9 6JH, UK
| | - Magdi H. Yacoub
- National Heart and Lung Institute, Harefield Heart Science Centre, Imperial College London, Harefield, Middlesex UB9 6JH, UK
| | - Sergio Bertazzo
- Department of Medical Physics and Biomedical Engineering, University College London, Malet Place Engineering Building, London WC1E 6BT, UK
| | - Molly M. Stevens
- Department of Materials, Imperial College London, London SW7 2AZ, UK
- Department of Bioengineering, Imperial College London, London SW7 2AZ, UK
- Institute of Biomedical Engineering, Imperial College London, London SW7 2AZ, UK
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20
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Akhavanpoor M, Gleissner CA, Akhavanpoor H, Lasitschka F, Doesch AO, Katus HA, Erbel C. Adventitial tertiary lymphoid organ classification in human atherosclerosis. Cardiovasc Pathol 2017; 32:8-14. [PMID: 29078120 DOI: 10.1016/j.carpath.2017.08.002] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Revised: 08/25/2017] [Accepted: 08/26/2017] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Atherosclerosis is a chronic inflammatory disease of the arterial wall. Adjacent to lamina intima lesion progression, a cellular compound develops in the lamina adventitia, defined as tertiary lymphoid organs (TLO) in mice. But in human system, it remains unknown whether these adventitial cellular accumulations represent these highly organized immunological structures. PATIENTS AND METHODS In this study, we investigated whether the adventitial cellular compounds represent TLOs in 72 human coronary artery samples by immunoenzyme staining. RESULTS The study showed that the adventitial cellular compound partly represented TLOs in human coronary arteries affected by atherogenesis in patients suffering from ischemic heart disease (56%) or a fatal myocardial infarction (100%), but not dilated cardiomyopathy. In addition, we established a classification for human TLOs, stage I-III, and showed that all stages were present in diseased coronary arteries. The stage of TLOs highly correlated with lesion size as well as plaque instability and rupture, and all patients with a myocardial infarction had stage III. Additionally, there were cellular infiltration and destruction of the lamina media, which were restricted to TLOs next to ruptured plaques in patients with a fatal myocardial infarction. CONCLUSIONS TLOs are present in patients with a coronary artery disease and highly correlated with lesion size, plaque instability, and rupture. Further studies are needed to investigate whether TLOs might be a specific diagnostic and drug target to modify plaque instability/rupture.
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Affiliation(s)
- Mohammadreza Akhavanpoor
- Department of Cardiology, University of Heidelberg, Germany; DZHK (German Centre for Cardiovascular Research), partner site Heidelberg, Mannheim, Germany
| | - Christian A Gleissner
- Department of Cardiology, University of Heidelberg, Germany; DZHK (German Centre for Cardiovascular Research), partner site Heidelberg, Mannheim, Germany
| | - Hamidreza Akhavanpoor
- Department of Cardiology, University of Heidelberg, Germany; DZHK (German Centre for Cardiovascular Research), partner site Heidelberg, Mannheim, Germany
| | | | - Andreas O Doesch
- Department of Cardiology, University of Heidelberg, Germany; DZHK (German Centre for Cardiovascular Research), partner site Heidelberg, Mannheim, Germany
| | - Hugo A Katus
- Department of Cardiology, University of Heidelberg, Germany; DZHK (German Centre for Cardiovascular Research), partner site Heidelberg, Mannheim, Germany
| | - Christian Erbel
- Department of Cardiology, University of Heidelberg, Germany; DZHK (German Centre for Cardiovascular Research), partner site Heidelberg, Mannheim, Germany.
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Sánchez-Trujillo L, Vázquez-Garza E, Castillo EC, García-Rivas G, Torre-Amione G. Role of Adaptive Immunity in the Development and Progression of Heart Failure: New Evidence. Arch Med Res 2017; 48:1-11. [PMID: 28577862 DOI: 10.1016/j.arcmed.2016.12.008] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Accepted: 12/13/2016] [Indexed: 12/18/2022]
Abstract
Heart failure (HF) is considered the endpoint of a variety of cardiac diseases, which are the leading cause of death in adults and considered a growing pandemic worldwide. Independent of the initial form of cardiac injury, there is evidence linking the involvement of the immune system. In HF there is evidence of the participation of TH1, and TH17 cells, which account for sustained pathological chronic inflammation, cell migration, and the induction of specific pathological phenotypes of mononuclear cells. Of equal or even higher relevance are the B lymphocyte activation mechanisms that include production of pro-inflammatory cytokines, chemokines, and cardiac autoantibodies with or without activation of the complement proteins. Both of these unbalanced T- and B-cell pathways of the adaptive immune system are associated with cardiomyocyte death and tissue remodeling by fibrosis leading to a dysfunctional heart. At this time, therapy with neutralizing antibodies and the use of anti-cytokine immunomodulators to counteract the immune system effects have reached a plateau of mixed results in clinical trials. Nevertheless, recent evidence showed promising results in animal models that suggest that modulation of the adaptive immune system cells more than some of their effector molecules could have benefits in HF patients. This review summarizes the role of the adaptive immunity cells in HF, considering the sustained activation of adaptive immune system as a potential contributor to disease progression in humans and experimental models where its regulation provides a new therapeutic target.
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Affiliation(s)
- Luis Sánchez-Trujillo
- Cátedra de Cardiología y Medicina Vascular, Escuela de Medicina, Tecnologico de Monterrey, Monterrey, México; Hospital General de Zona No. 4, Instituto Mexicano del Seguro Social, México City, Mexico
| | - Eduardo Vázquez-Garza
- Cátedra de Cardiología y Medicina Vascular, Escuela de Medicina, Tecnologico de Monterrey, Monterrey, México
| | - Elena C Castillo
- Cátedra de Cardiología y Medicina Vascular, Escuela de Medicina, Tecnologico de Monterrey, Monterrey, México
| | - Gerardo García-Rivas
- Cátedra de Cardiología y Medicina Vascular, Escuela de Medicina, Tecnologico de Monterrey, Monterrey, México; Centro de Investigación Biomédica, Hospital Zambrano Hellion, Tecnologico de Monterrey, San Pedro Garza-García, México.
| | - Guillermo Torre-Amione
- Cátedra de Cardiología y Medicina Vascular, Escuela de Medicina, Tecnologico de Monterrey, Monterrey, México; Centro de Investigación Biomédica, Hospital Zambrano Hellion, Tecnologico de Monterrey, San Pedro Garza-García, México; Methodist DeBakey Heart and Vascular Center, The Methodist Hospital, Houston, Texas
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Abstract
Cardiovascular disease is the leading cause of death worldwide, both in the general population and among patients with chronic kidney disease (CKD). In most cases, the underlying cause of the cardiovascular event is atherosclerosis - a chronic inflammatory disease. CKD accelerates atherosclerosis via augmentation of inflammation, perturbation of lipid metabolism, and other mechanisms. In the artery wall, subendothelial retention of plasma lipoproteins triggers monocyte-derived macrophages and T helper type 1 (TH1) cells to form atherosclerotic plaques. Inflammation is initiated by innate immune reactions to modified lipoproteins and is perpetuated by TH1 cells that react to autoantigens from the apolipoprotein B100 protein of LDL. Other T cells are also active in atherosclerotic lesions; regulatory T cells inhibit pathological inflammation, whereas TH17 cells can promote plaque fibrosis. The slow build-up of atherosclerotic plaques is asymptomatic, but plaque rupture or endothelial erosion can induce thrombus formation, leading to myocardial infarction or ischaemic stroke. Targeting risk factors for atherosclerosis has reduced mortality, but a need exists for novel therapies to stabilize plaques and to treat arterial inflammation. Patients with CKD would likely benefit from such preventive measures.
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Affiliation(s)
- Anton Gisterå
- Center for Molecular Medicine, Department of Medicine, Karolinska University Hospital, Karolinska Institutet, SE-17176 Stockholm, Sweden
| | - Göran K Hansson
- Center for Molecular Medicine, Department of Medicine, Karolinska University Hospital, Karolinska Institutet, SE-17176 Stockholm, Sweden
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The vascular adventitia: An endogenous, omnipresent source of stem cells in the body. Pharmacol Ther 2017; 171:13-29. [DOI: 10.1016/j.pharmthera.2016.07.017] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Accepted: 07/12/2016] [Indexed: 12/22/2022]
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Sage AP, Mallat Z. Readapting the adaptive immune response - therapeutic strategies for atherosclerosis. Br J Pharmacol 2017; 174:3926-3939. [PMID: 28052311 DOI: 10.1111/bph.13700] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Revised: 12/13/2016] [Accepted: 12/20/2016] [Indexed: 02/06/2023] Open
Abstract
Cardiovascular diseases remain a major global health issue, with the development of atherosclerosis as a major underlying cause. Our treatment of cardiovascular disease has improved greatly over the past three decades, but much remains to be done reduce disease burden. Current priorities include reducing atherosclerosis advancement to clinically significant stages and preventing plaque rupture or erosion. Inflammation and involvement of the adaptive immune system influences all these aspects and therefore is one focus for future therapeutic development. The atherosclerotic vascular wall is now recognized to be invaded from both sides (arterial lumen and adventitia), for better or worse, by the adaptive immune system. Atherosclerosis is also affected at several stages by adaptive immune responses, overall providing many opportunities to target these responses and to reduce disease progression. Protective influences that may be defective in diseased individuals include humoral responses to modified LDL and regulatory T cell responses. There are many strategies in development to boost these pathways in humans, including vaccine-based therapies. The effects of various existing adaptive immune targeting therapies, such as blocking critical co-stimulatory pathways or B cell depletion, on cardiovascular disease are beginning to emerge with important consequences for both autoimmune disease patients and the potential for wider use of such therapies. Entering the translation phase for adaptive immune targeting therapies is an exciting and promising prospect. LINKED ARTICLES This article is part of a themed section on Targeting Inflammation to Reduce Cardiovascular Disease Risk. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v174.22/issuetoc and http://onlinelibrary.wiley.com/doi/10.1111/bcp.v82.4/issuetoc.
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Affiliation(s)
- Andrew P Sage
- Division of Cardiovascular Medicine, Department of Medicine, University of Cambridge, Cambridge, UK
| | - Ziad Mallat
- Division of Cardiovascular Medicine, Department of Medicine, University of Cambridge, Cambridge, UK.,INSERM U970, Paris Cardiovascular Research Center, Paris, France, Université Paris Descartes, Sorbonne Paris Cité, Paris, France
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Wei Z, Song J, Feng X, Zhang N, Wang L, Xu B. Reversal of cardiac remodeling after treatment of IgG4 related cholangitis. Int J Cardiol 2016; 222:257-259. [DOI: 10.1016/j.ijcard.2016.07.245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Accepted: 07/29/2016] [Indexed: 10/21/2022]
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Wang X, Chen L, Liu J, Yan T, Wu G, Xia Y, Zong G, Li F. In vivo treatment of rat arterial adventitia with interleukin‑1β induces intimal proliferation via the JAK2/STAT3 signaling pathway. Mol Med Rep 2016; 13:3451-8. [PMID: 26955959 PMCID: PMC4805072 DOI: 10.3892/mmr.2016.4982] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2015] [Accepted: 02/09/2016] [Indexed: 11/09/2022] Open
Abstract
Previous studies have indicated that adventitial inflammation is involved in the development of atherosclerosis. The aim of this study was to investigate the effect of arterial adventitia inflammation induced by interleukin (IL)-1β on intimal proliferation and the mechanisms involved in this process. The left common carotid artery adventitia of male rats in the experimental and control groups (25 rats/group) was wrapped with agar containing or without a sustained-release suspension of 2.5 µg IL-1β, respectively. Five animals in each group were randomly selected for sacrifice at 2 h, 8 h, 24 h, 48 h, and 1 week post-treatment. Hematoxylin and eosin staining was performed for to analyze the morphology of the adventitia. The expression of janus kinase (JAK)2, signal transducer and activator of transcription (STAT)3, phosphorylated (p-)JAK2 and p-STAT3 were detected by western blot analysis or immunohistochemistry staining. A model of adventitial inflammation was successfully created by wrapping IL-1β around the rat carotid artery. IL-1β treatment induced vascular smooth muscle cell proliferation and migration as well as intimal proliferation. In addition, the expression of p-JAK2 and p-STAT3 increased after IL-1β treatment. Furthermore, an inhibitor of JAK2/STAT3 pathway, AG490, suppressed IL-1β-induced intimal proliferation and phosphorylation of JAK2 and STAT3. Thus, the JAK2/STAT3 signaling pathway is involved in intimal proliferation caused by vascular adventitial inflammation. Inhibiting the JAK2/STAT3 signaling pathway may be a novel method for the clinical treatment of artery atherosclerosis.
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Affiliation(s)
- Xiao Wang
- Department of Cardiovascular Diseases, The 101st Hospital of PLA, Wuxi, Jiangsu 214044, P.R. China
| | - Lihua Chen
- Department of Radiology, The 101st Hospital of PLA, Wuxi, Jiangsu 214044, P.R. China
| | - Jie Liu
- Department of Cardiovascular Diseases, The 101st Hospital of PLA, Wuxi, Jiangsu 214044, P.R. China
| | - Tao Yan
- Central Laboratories, The Second Artillery General Hospital, Beijing 100088, P.R. China
| | - Gangyong Wu
- Department of Cardiovascular Diseases, The 101st Hospital of PLA, Wuxi, Jiangsu 214044, P.R. China
| | - Yang Xia
- Department of Cardiovascular Diseases, The 101st Hospital of PLA, Wuxi, Jiangsu 214044, P.R. China
| | - Gangjun Zong
- Department of Cardiovascular Diseases, The 101st Hospital of PLA, Wuxi, Jiangsu 214044, P.R. China
| | - Fengsheng Li
- Central Laboratories, The Second Artillery General Hospital, Beijing 100088, P.R. China
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Abstract
Atherosclerosis is a lipid-storage disease of arteries that is exacerbated by chronic inflammatory processes. In this issue of Immunity, Hu et al. (2015) demonstrate that T cell responses in atherosclerotic lesions are controlled in tertiary lymphoid organs in the arterial wall.
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Affiliation(s)
- Lucas Onder
- Institute of Immunobiology, Kantonsspital St. Gallen, St. Gallen 9007, Switzerland
| | - Burkhard Ludewig
- Institute of Immunobiology, Kantonsspital St. Gallen, St. Gallen 9007, Switzerland.
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Quesada IM, Lucero A, Amaya C, Meijles DN, Cifuentes ME, Pagano PJ, Castro C. Selective inactivation of NADPH oxidase 2 causes regression of vascularization and the size and stability of atherosclerotic plaques. Atherosclerosis 2015; 242:469-75. [PMID: 26298737 DOI: 10.1016/j.atherosclerosis.2015.08.011] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/23/2015] [Revised: 07/23/2015] [Accepted: 08/06/2015] [Indexed: 11/28/2022]
Abstract
BACKGROUND A variety of NADPH oxidase (Nox) isoforms including Noxs 1, 2, 4 and 5 catalyze the formation of reactive oxygen species (ROS) in the vascular wall. The Nox2 isoform complex has arguably received the greatest attention in the progression of atherogenesis in animal models. Thus, in the current study we postulated that specific Nox2 oxidase inhibition could reverse or attenuate atherosclerosis in mice fed a high-fat diet. METHODS We evaluated the effect of isoform-selective Nox2 assembly inhibitor on the progression and vascularization of atheromatous plaques. Apolipoprotein E-deficient mice (ApoE-/-) were fed a high fat diet for two months and treated over 15 days with Nox2ds-tat or control sequence (scrambled); 10 mg/kg/day, i.p. Mice were sacrificed and superoxide production in arterial tissue was detected by cytochrome C reduction assay and dihydroethidium staining. Plaque development was evaluated and the angiogenic markers VEGF, HIF1-α and visfatin were quantified by real time qRT-PCR. MMP-9 protein release and gelatinolytic activity was determined as a marker for vascularization. RESULTS Nox2ds-tat inhibited Nox-derived superoxide determined by cytochrome C in carotid arteries (2.3 ± 0.1 vs 1.7 ± 0.1 O2(•-) nmol/min*mg protein; P < 0.01) and caused a significant regression in atherosclerotic plaques in aorta (66 ± 6 μm(2) vs 37 ± 1 μm(2); scrmb vs. Nox2ds-tat; P < 0.001). Increased VEGF, HIF-1α, MMP-9 and visfatin expression in arterial tissue in response to high-fat diet were significantly attenuated by Nox2ds-tat which in turn impaired both MMP-9 protein expression and activity. CONCLUSION Given these results, it is quite evident that selective Nox inhibitors can reverse vascular pathology arising with atherosclerosis.
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Affiliation(s)
- I M Quesada
- Vascular Biology Lab, Institute of Medicine and Experimental Biology of Cuyo (IMBECU) CONICET, School of Medical Sciences, National University of Cuyo, Mendoza, Argentina
| | - A Lucero
- Vascular Biology Lab, Institute of Medicine and Experimental Biology of Cuyo (IMBECU) CONICET, School of Medical Sciences, National University of Cuyo, Mendoza, Argentina
| | - C Amaya
- Cellular and Molecular Biology Lab, Institute of Histology and Embryology (IHEM) CONICET, Mendoza, Argentina
| | - D N Meijles
- Department of Pharmacology & Chemical Biology and Vascular Medicine Institute, 200 Lothrop Street, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - M E Cifuentes
- Department of Pharmacology & Chemical Biology and Vascular Medicine Institute, 200 Lothrop Street, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - P J Pagano
- Department of Pharmacology & Chemical Biology and Vascular Medicine Institute, 200 Lothrop Street, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - C Castro
- Vascular Biology Lab, Institute of Medicine and Experimental Biology of Cuyo (IMBECU) CONICET, School of Medical Sciences, National University of Cuyo, Mendoza, Argentina.
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29
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Treacy AD, Norita K, Ingram PJ, Sheppard MN. Pseudotumour formation in atheromatous coronary arteries. J Forensic Leg Med 2015; 32:73-6. [DOI: 10.1016/j.jflm.2015.02.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2014] [Revised: 10/14/2014] [Accepted: 02/07/2015] [Indexed: 12/24/2022]
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Kirabo A, Harrison DG. Hypertension as a Risk Factor for Atherosclerosis. Atherosclerosis 2015. [DOI: 10.1002/9781118828533.ch6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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31
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Chistiakov DA, Orekhov AN, Bobryshev YV. Contribution of neovascularization and intraplaque haemorrhage to atherosclerotic plaque progression and instability. Acta Physiol (Oxf) 2015; 213:539-53. [PMID: 25515699 DOI: 10.1111/apha.12438] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Revised: 11/13/2014] [Accepted: 12/10/2014] [Indexed: 12/14/2022]
Abstract
Atherosclerosis is a continuous pathological process that starts early in life and progresses frequently to unstable plaques. Plaque rupture leads to deleterious consequences such as acute coronary syndrome, stroke and atherothrombosis. The vulnerable lesion has several structural and functional hallmarks that distinguish it from the stable plaque. The unstable plaque has large necrotic core (over 40% plaque volume) composed of cholesterol crystals, cholesterol esters, oxidized lipids, fibrin, erythrocytes and their remnants (haeme, iron, haemoglobin), and dying macrophages. The fibrous cap is thin, depleted of smooth muscle cells and collagen, and is infiltrated with proinflammatory cells. In unstable lesion, formation of neomicrovessels is increased. These neovessels have weak integrity and leak thereby leading to recurrent haemorrhages. Haemorrhages deliver erythrocytes to the necrotic core where they degrade promoting inflammation and oxidative stress. Inflammatory cells mostly presented by monocytes/macrophages, neutrophils and mast cells extravagate from bleeding neovessels and infiltrate adventitia where they support chronic inflammation. Plaque destabilization is an evolutionary process that could start at early atherosclerotic stages and whose progression is influenced by many factors including neovascularization, intraplaque haemorrhages, formation of cholesterol crystals, inflammation, oxidative stress and intraplaque protease activity.
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Affiliation(s)
- D. A. Chistiakov
- Department of Medical Nanobiotechnology; Pirogov Russian State Medical University; Moscow Russia
- The Mount Sinai Community Clinical Oncology Program; Mount Sinai Comprehensive Cancer Center; Mount Sinai Medical Center; Miami Beach FL USA
- Research Center for Children's Health; Moscow Russia
| | - A. N. Orekhov
- Laboratory of Angiopathology; Institute of General Pathology and Pathophysiology; Russian Academy of Sciences; Moscow Russia
- Skolkovo Innovative Center; Institute for Atherosclerosis Research; Moscow Russia
| | - Y. V. Bobryshev
- Laboratory of Angiopathology; Institute of General Pathology and Pathophysiology; Russian Academy of Sciences; Moscow Russia
- Faculty of Medicine and St Vincent's Centre for Applied Medical Research; University of New South Wales; Sydney NSW Australia
- School of Medicine; University of Western Sydney; Campbelltown NSW Australia
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32
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Akhavanpoor M, Wangler S, Gleissner CA, Korosoglou G, Katus HA, Erbel C. Adventitial inflammation and its interaction with intimal atherosclerotic lesions. Front Physiol 2014; 5:296. [PMID: 25152736 PMCID: PMC4126462 DOI: 10.3389/fphys.2014.00296] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2014] [Accepted: 07/22/2014] [Indexed: 12/22/2022] Open
Abstract
The presence of adventitial inflammation in correlation with atherosclerotic lesions has been recognized for decades. In the last years, several studies have investigated the relevance and impact of adventitial inflammation on atherogenesis. In the abdominal aorta of elderly Apoe−/− mice, adventitial inflammatory structures were characterized as organized ectopic lymphoid tissue, and therefore termed adventitial tertiary lymphoid organs (ATLOs). These ATLOs possess similarities in development, structure and function to secondary lymphoid organs. A crosstalk between intimal atherosclerotic lesions and ATLOs has been suggested, and several studies could demonstrate a potential role for medial vascular smooth muscle cells in this process. We here review the development, phenotypic characteristics, and function of ATLOs in atherosclerosis. Furthermore, we discuss the possible role of medial vascular smooth muscle cells and their interaction between plaque and ATLOs.
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Affiliation(s)
- Mohammadreza Akhavanpoor
- Department of Cardiology, University of Heidelberg Heidelberg, Germany ; DZHK (German Centre for Cardiovascular Research) Partner Site Heidelberg/Mannheim, Germany
| | - Susanne Wangler
- Department of Cardiology, University of Heidelberg Heidelberg, Germany ; DZHK (German Centre for Cardiovascular Research) Partner Site Heidelberg/Mannheim, Germany
| | - Christian A Gleissner
- Department of Cardiology, University of Heidelberg Heidelberg, Germany ; DZHK (German Centre for Cardiovascular Research) Partner Site Heidelberg/Mannheim, Germany
| | - Grigorios Korosoglou
- Department of Cardiology, University of Heidelberg Heidelberg, Germany ; DZHK (German Centre for Cardiovascular Research) Partner Site Heidelberg/Mannheim, Germany
| | - Hugo A Katus
- Department of Cardiology, University of Heidelberg Heidelberg, Germany ; DZHK (German Centre for Cardiovascular Research) Partner Site Heidelberg/Mannheim, Germany
| | - Christian Erbel
- Department of Cardiology, University of Heidelberg Heidelberg, Germany ; DZHK (German Centre for Cardiovascular Research) Partner Site Heidelberg/Mannheim, Germany
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Yin K, Agrawal DK. High-density lipoprotein: a novel target for antirestenosis therapy. Clin Transl Sci 2014; 7:500-11. [PMID: 25043950 DOI: 10.1111/cts.12186] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Restenosis is an integral pathological process central to the recurrent vessel narrowing after interventional procedures. Although the mechanisms for restenosis are diverse in different pathological conditions, endothelial dysfunction, inflammation, vascular smooth muscle cell (SMC) proliferation, and myofibroblasts transition have been thought to play crucial role in the development of restenosis. Indeed, there is an inverse relationship between high-density lipoprotein (HDL) levels and risk for coronary heart disease (CHD). However, relatively studies on the direct assessment of HDL effect on restenosis are limited. In addition to involvement in the cholesterol reverse transport, many vascular protective effects of HDL, including protection of endothelium, antiinflammation, antithrombus actions, inhibition of SMC proliferation, and regulation by adventitial effects may contribute to the inhibition of restenosis, though the exact relationships between HDL and restenosis remain to be elucidated. This review summarizes the vascular protective effects of HDL, emphasizing the potential role of HDL in intimal hyperplasia and vascular remodeling, which may provide novel prophylactic and therapeutic strategies for antirestenosis.
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Affiliation(s)
- Kai Yin
- Center for Clinical & Translational Science, Creighton University School of Medicine, Omaha, Nebraska, USA
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34
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Affiliation(s)
- Mary Jo Mulligan-Kehoe
- From the Department of Surgery, Vascular Section, Geisel School of Medicine at Dartmouth, Lebanon, NH (M.J.M.-K.); and Yale Cardiovascular Research Center, Section of Cardiovascular Medicine, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT (M.S.)
| | - Michael Simons
- From the Department of Surgery, Vascular Section, Geisel School of Medicine at Dartmouth, Lebanon, NH (M.J.M.-K.); and Yale Cardiovascular Research Center, Section of Cardiovascular Medicine, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT (M.S.)
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35
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Beyond the Standard Lipid Profile: What is Known about Apolipoproteins, Lp(a), and Lipoprotein Particle Distributions in Children. CURRENT CARDIOVASCULAR RISK REPORTS 2014. [DOI: 10.1007/s12170-014-0381-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Drożdż K, Grzegorek I, Chmielewska M, Gomułkiewicz A, Jabłońska K, Piotrowska A, Karczewski M, Janczak D, Patrzałek D, Dzięgiel P, Szuba A. Nogo-B expression, in arterial intima, is impeded in the early stages of atherosclerosis in humans. APMIS 2013; 122:742-9. [PMID: 24372562 DOI: 10.1111/apm.12212] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2013] [Accepted: 09/27/2013] [Indexed: 11/30/2022]
Abstract
Nogo-B (Reticulon 4B) is considered to be a novel vascular marker, which may have a protective role in injury-induced neointima formation and atherosclerosis. Nogo A/B is found to be crucial for monocyte/macrophage recruitment in acute inflammation and it is expressed in CD68 + macrophages. We hypothesize that macrophage infiltration in atherosclerosis is not dependent on Nogo-B expression in arterial wall. We have assessed Nogo-B expression and macrophage accumulation in the iliac arteries of healthy organ donors and organ donors with cardiovascular risk factors. Paraffin sections of 66 iliac arteries, from 44 deceased organ donors (17 women and 27 men), were studied. The healthy and cardiovascular risk (CVR) subgroups were created. With regard to staging of the atherosclerotic process, the thickness of arterial intima was measured in digitalized images of H+E stained tissue sections. Immunohistochemical reactions (Nogo-B and CD68) were carried out in all arteries (66 samples). Western blotting (WB-19 samples) and real-time PCR (27 samples) were performed on selected arteries. Significantly higher Nogo-B expression was demonstrated in the intima of the healthy subjects' subgroup, using immunohistochemistry. WB and real-time PCR revealed a trend toward lower Nogo-B expression in the adventitia of the CVR subgroup. Furthermore, the thickness of the intima was found to negatively correlate with the expression of Nogo-B in the intima and media (r = -0.32; p < 0.05; r = -0.32; p < 0.05). Macrophage infiltrates were more prominent in intima of CVR subjects (0.65 vs 3.52 a.u.; p < 0.01). Macrophage density in intima increased with atherosclerosis progression (r = 0.37; p < 0.01). CD68 macrophages density in adventitia was lower in CVR arteries than in healthy arteries. The expression of Nogo-B, in arterial intima, is impeded in the early stages of atherosclerosis. Accumulation of arterial intimal CD68 macrophages has been shown to progress; however, the overall macrophage density in the adventitia is reduced in arteries shown to have intimal thickening. Macrophage infiltration is not accompanied by Nogo-B expression in atherosclerotic arteries.
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Affiliation(s)
- Katarzyna Drożdż
- Regional Specialized Hospital in Wroclaw, Research and Development Center, Wroclaw, Poland; Department of Internal Medicine, 4th Military Hospital, Wroclaw, Poland
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Salabei JK, Hill BG. Implications of autophagy for vascular smooth muscle cell function and plasticity. Free Radic Biol Med 2013; 65:693-703. [PMID: 23938401 PMCID: PMC3859773 DOI: 10.1016/j.freeradbiomed.2013.08.003] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2013] [Revised: 08/02/2013] [Accepted: 08/04/2013] [Indexed: 12/14/2022]
Abstract
Vascular smooth muscle cells (VSMCs) are fundamental in regulating blood pressure and distributing oxygen and nutrients to peripheral tissues. They also possess remarkable plasticity, with the capacity to switch to synthetic, macrophage-like, or osteochondrogenic phenotypes when cued by external stimuli. In arterial diseases such as atherosclerosis and restenosis, this plasticity seems to be critical and, depending on the disease context, can be deleterious or beneficial. Therefore, understanding the mechanisms regulating VSMC phenotype and survival is essential for developing new therapies for vascular disease as well as understanding how secondary complications due to surgical interventions develop. In this regard, the cellular process of autophagy is increasingly being recognized as a major player in vascular biology and a critical determinant of VSMC phenotype and survival. Although autophagy was identified in lesional VSMCs in the 1960s, our understanding of the implications of autophagy in arterial diseases and the stimuli promoting its activation in VSMCs is only now being elucidated. In this review, we highlight the evidence for autophagy occurring in VSMCs in vivo, elaborate on the stimuli and processes regulating autophagy, and discuss the current understanding of the role of autophagy in vascular disease.
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Affiliation(s)
- Joshua K Salabei
- Diabetes and Obesity Center, Institute of Molecular Cardiology, University of Louisville School of Medicine, Louisville, KY 40202, USA
| | - Bradford G Hill
- Diabetes and Obesity Center, Institute of Molecular Cardiology, University of Louisville School of Medicine, Louisville, KY 40202, USA; Department of Biochemistry and Molecular Biology, University of Louisville School of Medicine, Louisville, KY 40202, USA; Department of Physiology and Biophysics, University of Louisville School of Medicine, Louisville, KY 40202, USA.
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Hamze M, Desmetz C, Berthe ML, Roger P, Boulle N, Brancherau P, Picard E, Guzman C, Tolza C, Guglielmi P. Characterization of Resident B Cells of Vascular Walls in Human Atherosclerotic Patients. THE JOURNAL OF IMMUNOLOGY 2013; 191:3006-16. [DOI: 10.4049/jimmunol.1202870] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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39
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Abstract
Cardiovascular disease is the leading cause of death in several countries. The underlying process is atherosclerosis, a slowly progressing chronic disorder that can lead to intravascular thrombosis. There is overwhelming evidence for the underlying importance of our immune system in atherosclerosis. Monocytes, which comprise part of the innate immune system, can be recruited to inflamed endothelium and this recruitment has been shown to be proportional to the extent of atherosclerotic disease. Monocytes undergo migration into the vasculature, they differentiate into macrophage phenotypes, which are highly phagocytic and can scavenge modified lipids, leading to foam cell formation and development of the lipid-rich atheroma core. This increased influx leads to a highly inflammatory environment and along with other immune cells can increase the risk in the development of the unstable atherosclerotic plaque phenotype. The present review provides an overview and description of the immunological aspect of innate and adaptive immune cell subsets in atherosclerosis, by defining their interaction with the vascular environment, modified lipids and other cellular exchanges. There is a particular focus on monocytes and macrophages, but shorter descriptions of dendritic cells, lymphocyte populations, neutrophils, mast cells and platelets are also included.
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Ishizaka N. IgG4-related disease underlying the pathogenesis of coronary artery disease. Clin Chim Acta 2013; 415:220-5. [DOI: 10.1016/j.cca.2012.11.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2012] [Revised: 10/30/2012] [Accepted: 11/02/2012] [Indexed: 01/05/2023]
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Yang Y, Wang YF, Yang XF, Wang ZH, Lian YT, Yang Y, Li XW, Gao X, Chen J, Shu YW, Cheng LX, Liao YH, Liu K. Specific Kv1.3 blockade modulates key cholesterol-metabolism-associated molecules in human macrophages exposed to ox-LDL. J Lipid Res 2012; 54:34-43. [PMID: 23099443 DOI: 10.1194/jlr.m023846] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Cholesterol-metabolism-associated molecules, including scavenger receptor class A (SR-A), lectin-like oxidized low-density lipoprotein receptor-1 (LOX-1), CD36, ACAT1, ABCA1, ABCG1, and scavenger receptor class B type I, can modulate cholesterol metabolism in the transformation from macrophages to foam cells. Voltage-gated potassium channel Kv1.3 has increasingly been demonstrated to play an important role in the modulation of macrophage function. Here, we investigate the role of Kv1.3 in modulating cholesterol-metabolism-associated molecules in human acute monocytic leukemia cell-derived macrophages (THP-1 macrophages) and human monocyte-derived macrophages exposed to oxidized LDL (ox-LDL). Human Kv1.3 and Kv1.5 channels (hKv1.3 and hKv1.5) are expressed in macrophages and form a heteromultimeric channel. The hKv1.3-E314 antibody that we had generated as a specific hKv1.3 blocker inhibited outward delayed rectifier potassium currents, whereas the hKv1.5-E313 antibody that we had generated as a specific hKv1.5 blocker failed. Accordingly, the hKv1.3-E314 antibody reduced percentage of cholesterol ester and enhanced apoA-I-mediated cholesterol efflux in THP-1 macrophages and human monocyte-derived macrophages exposed to ox-LDL. The hKv1.3-E314 antibody downregulated SR-A, LOX-1, and ACAT1 expression and upregulated ABCA1 expression in THP-1 macrophages and human monocyte-derived macrophages. Our results reveal that specific Kv1.3 blockade represents a novel strategy modulating cholesterol metabolism in macrophages, which benefits the treatment of atherosclerotic lesions.
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Affiliation(s)
- Yong Yang
- Department of Cardiology, Union Hospital, Huazhong University of Science and Technology, Wuhan, China
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Canducci F, Saita D, Foglieni C, Piscopiello MR, Chiesa R, Colombo A, Cianflone D, Maseri A, Clementi M, Burioni R. Cross-reacting antibacterial auto-antibodies are produced within coronary atherosclerotic plaques of acute coronary syndrome patients. PLoS One 2012; 7:e42283. [PMID: 22879930 PMCID: PMC3412836 DOI: 10.1371/journal.pone.0042283] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2012] [Accepted: 07/02/2012] [Indexed: 12/19/2022] Open
Abstract
Coronary atherosclerosis, the main condition predisposing to acute myocardial infarction, has an inflammatory component caused by stimuli that are yet unknown. We molecularly investigated the nature of the immune response within human coronary lesion in four coronary plaques obtained by endoluminal atherectomy from four patients. We constructed phage-display libraries containing the IgG1/kappa antibody fragments produced by B-lymphocytes present in each plaque. By immunoaffinity, we selected from these libraries a monoclonal antibody, arbitrarily named Fab7816, able to react both with coronary and carotid atherosclerotic tissue samples. We also demonstrated by confocal microscopy that this monoclonal antibody recognized human transgelin type 1, a cytoskeleton protein involved in atherogenesis, and that it co-localized with fibrocyte-like cells transgelin+, CD68+, CD45+ in human sections of coronary and carotid plaques. In vitro fibrocytes obtained by differentiating CD14+ cells isolated from peripheral blood mononuclear cells also interacted with Fab7816, thus supporting the hypothesis of a specific recognition of fibrocytes into the atherosclerotic lesions. Interestingly, the same antibody, cross-reacted with the outer membrane proteins of Proteus mirabilis and Klebsiella pneumoniae (and possibly with homologous proteins of other enterobacteriaceae present in the microbiota). From all the other three libraries, we were able to clone, by immunoaffinity selection, human monoclonal antibodies cross-reacting with bacterial outer membrane proteins and with transgelin. These findings demonstrated that in human atherosclerotic plaques a local cross-reactive immune response takes place.
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Affiliation(s)
- Filippo Canducci
- Laboratory of Microbiology and Virology, Ospedale San Raffaele, Milan, Italy
- University Vita-Salute San Raffaele, Milan, Italy
| | - Diego Saita
- Laboratory of Microbiology and Virology, Ospedale San Raffaele, Milan, Italy
- University Vita-Salute San Raffaele, Milan, Italy
| | - Chiara Foglieni
- University Vita-Salute San Raffaele, Milan, Italy
- Clinical Cardiovascular Biology Centre, Ospedale San Raffaele, Milan, Italy
| | - Maria Rosaria Piscopiello
- University Vita-Salute San Raffaele, Milan, Italy
- Istituto di Neurologia Sperimentale, Ospedale San Raffaele, Milan, Italy
| | - Roberto Chiesa
- University Vita-Salute San Raffaele, Milan, Italy
- Division of Vascular Surgery, Ospedale San Raffaele, Milan, Italy
| | - Antonio Colombo
- University Vita-Salute San Raffaele, Milan, Italy
- Interventional Cardiology Unit, Department of Cardio-Thoracic and Vascular Diseases, Ospedale San Raffaele, Milan Italy
| | - Domenico Cianflone
- University Vita-Salute San Raffaele, Milan, Italy
- Clinical Cardiovascular Biology Centre, Ospedale San Raffaele, Milan, Italy
| | | | - Massimo Clementi
- Laboratory of Microbiology and Virology, Ospedale San Raffaele, Milan, Italy
- University Vita-Salute San Raffaele, Milan, Italy
| | - Roberto Burioni
- Laboratory of Microbiology and Virology, Ospedale San Raffaele, Milan, Italy
- University Vita-Salute San Raffaele, Milan, Italy
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Weih F, Gräbner R, Hu D, Beer M, Habenicht AJR. Control of dichotomic innate and adaptive immune responses by artery tertiary lymphoid organs in atherosclerosis. Front Physiol 2012; 3:226. [PMID: 22783198 PMCID: PMC3390894 DOI: 10.3389/fphys.2012.00226] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2012] [Accepted: 06/04/2012] [Indexed: 12/29/2022] Open
Abstract
Tertiary lymphoid organs (TLOs) emerge in tissues in response to non-resolving inflammation such as chronic infection, graft rejection, and autoimmune disease. We identified artery TLOs (ATLOs) in the adventitia adjacent to atherosclerotic plaques of aged hyperlipidemic ApoE−/− mice. ATLOs are structured into T cell areas harboring conventional dendritic cells and monocyte-derived DCs; B cell follicles containing follicular dendritic cells within activated germinal centers; and peripheral niches of plasma cells. ATLOs also show extensive neoangiogenesis, aberrant lymphangiogenesis, and high endothelial venule (HEV) neogenesis. Newly formed conduit networks connect the external lamina of the artery with HEVs in T cell areas. ATLOs recruit and generate lymphocyte subsets with opposing activities including activated CD4+ and CD8+ effector T cells, natural and induced CD4+ T regulatory (nTregs; iTregs) cells as well as B-1 and B-2 cells at different stages of differentiation. These data indicate that ATLOs organize dichotomic innate and adaptive immune responses in atherosclerosis. In this review we discuss the novel concept that dichotomic immune responses toward atherosclerosis-specific antigens are carried out by ATLOs in the adventitia of the arterial wall and that malfunction of the tolerogenic arm of ATLO immunity triggers transition from silent autoimmune reactivity to clinically overt disease.
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Affiliation(s)
- Falk Weih
- Leibniz-Institute for Age Research, Fritz-Lipmann-Institute Jena, Germany
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Fukui M, Tanaka M, Toda H, Asano M, Yamazaki M, Hasegawa G, Imai S, Fujinami A, Ohta M, Nakamura N. The serum concentration of allograft inflammatory factor-1 is correlated with metabolic parameters in healthy subjects. Metabolism 2012; 61:1021-5. [PMID: 22225958 DOI: 10.1016/j.metabol.2011.12.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2011] [Revised: 12/04/2011] [Accepted: 12/05/2011] [Indexed: 02/04/2023]
Abstract
Obesity is associated with low-grade chronic inflammation characterized by inflamed adipose tissue with increased infiltration of macrophages. The aim of this study was to investigate the correlations between the serum concentration of allograft inflammatory factor-1 (AIF-1), which is a marker of activated macrophages, and metabolic parameters. The serum AIF-1 concentrations were measured in 303 healthy subjects (163 men and 140 women). We then evaluated the relationships between the serum AIF-1 concentrations and metabolic parameters, including fasting plasma glucose levels, serum lipid concentration, uric acid concentration, and waist circumference. The serum AIF-1 concentrations positively correlated with levels of fasting plasma glucose (r = 0.159, P =.0056), hemoglobin A(1c) (r = 0.169, P = .0032), triglycerides (r = 0.137, P = .0172), and uric acid (r = 0.146, P = .0108) and with waist circumference (r = 0.221, P = .0001) and body mass index (r = 0.185, P = .0012), whereas the serum AIF-1 concentrations inversely correlated with high-density lipoprotein cholesterol level (r = -0.178, P = .0019). Stepwise multiple regression analysis demonstrated that hemoglobin A(1c) level (β = .133, F = 5.490, P < .05) and waist circumference (β = .197, F = 11.954, P < .05) were independent predictors of the serum AIF-1 concentrations. The serum AIF-1 concentrations correlated with clinical and biochemical metabolic parameters. Allograft inflammatory factor-1 may be a significant predictor of activated macrophages as well as cardiovascular disease in humans.
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Affiliation(s)
- Michiaki Fukui
- Department of Endocrinology and Metabolism, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kamigyo-ku, Kyoto 602-8566, Japan.
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45
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Campbell KA, Lipinski MJ, Doran AC, Skaflen MD, Fuster V, McNamara CA. Lymphocytes and the adventitial immune response in atherosclerosis. Circ Res 2012; 110:889-900. [PMID: 22427326 DOI: 10.1161/circresaha.111.263186] [Citation(s) in RCA: 92] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Although much of the research on atherosclerosis has focused on the intimal accumulation of lipids and inflammatory cells, there is an increasing amount of interest in the role of the adventitia in coordinating the immune response in atherosclerosis. In this review of the contributions of the adventitia and adventitial lymphocytes to the development of atherosclerosis, we discuss recent research on the formation and structural nature of adventitial immune aggregates, potential mechanisms of crosstalk between the intima, media, and adventitia, specific contributions of B lymphocytes and T lymphocytes, and the role of the vasa vasorum and surrounding perivascular adipose tissue. Furthermore, we highlight techniques for the imaging of lymphocytes in the vasculature.
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Affiliation(s)
- Kirsti A Campbell
- Cardiovascular Research Center, University of Virginia, Charlottesville, USA
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46
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Abstract
Smooth muscle cells (SMCs) possess remarkable phenotypic plasticity that allows rapid adaptation to fluctuating environmental cues, including during development and progression of vascular diseases such as atherosclerosis. Although much is known regarding factors and mechanisms that control SMC phenotypic plasticity in cultured cells, our knowledge of the mechanisms controlling SMC phenotypic switching in vivo is far from complete. Indeed, the lack of definitive SMC lineage-tracing studies in the context of atherosclerosis, and difficulties in identifying phenotypically modulated SMCs within lesions that have down-regulated typical SMC marker genes, and/or activated expression of markers of alternative cell types including macrophages, raise major questions regarding the contributions of SMCs at all stages of atherogenesis. The goal of this review is to rigorously evaluate the current state of our knowledge regarding possible phenotypes exhibited by SMCs within atherosclerotic lesions and the factors and mechanisms that may control these phenotypic transitions.
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Affiliation(s)
- Delphine Gomez
- Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, 415 Lane Road, PO Box 801394, Room 1322 Medical Research Building 5, Charlottesville, VA 22908, USA
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Lebastchi AH, Khan SF, Qin L, Li W, Zhou J, Hibino N, Yi T, Rao DA, Pober JS, Tellides G. Transforming growth factor beta expression by human vascular cells inhibits interferon gamma production and arterial media injury by alloreactive memory T cells. Am J Transplant 2011; 11:2332-41. [PMID: 21812925 PMCID: PMC3203343 DOI: 10.1111/j.1600-6143.2011.03676.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Arteriosclerosis is characterized by the local activation of effector T cells leading to production of proinflammatory cytokines, such as IFN (interferon)-γ and IL-17, within the vessel wall. Conversely, the production of antiinflammatory cytokines, for example, TGF-β, by regulatory lymphocytes is known to inhibit both the differentiation of naïve T cells into effector T cells and the development of arteriosclerosis in murine models. We investigated the role of TGF-β on the alloreactivity of human effector memory T cells (Tem). Quiescent vascular cells, but not Tem, expressed TGF-β. Blockade of TGF-β activity in cocultures of CD4(+) Tem with allogeneic endothelial cells significantly increased IFN-γ, but not IL-17, secretion. Additionally, serologic neutralization of TGF-β in immunodeficient mouse hosts of human coronary artery grafts into which allogeneic human T cells were adoptively transferred resulted in heavier medial infiltration by Tem, greater loss of medial smooth muscle cells and increased IFN-γ production within the grafts without significantly reducing either intimal injury or IL-17 production. Protective effects of TGF-β may be limited by fewer TGF-β-expressing vascular cells within the intimal compartment, by a reduction in the expression of TGF-β by vascular cells in rejecting grafts, or possibly to less effective suppression of Tem than naïve T cells.
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Affiliation(s)
- Amir H. Lebastchi
- Department of Surgery, Interdepartmental Program in Vascular Biology and Therapeutics, Yale University School of Medicine, New Haven, Connecticut 06510
| | - Salman F. Khan
- Department of Surgery, Interdepartmental Program in Vascular Biology and Therapeutics, Yale University School of Medicine, New Haven, Connecticut 06510
| | - Lingfeng Qin
- Department of Surgery, Interdepartmental Program in Vascular Biology and Therapeutics, Yale University School of Medicine, New Haven, Connecticut 06510
| | - Wei Li
- Department of Surgery, Interdepartmental Program in Vascular Biology and Therapeutics, Yale University School of Medicine, New Haven, Connecticut 06510
| | - Jing Zhou
- Department of Surgery, Interdepartmental Program in Vascular Biology and Therapeutics, Yale University School of Medicine, New Haven, Connecticut 06510
| | - Narutoshi Hibino
- Department of Surgery, Interdepartmental Program in Vascular Biology and Therapeutics, Yale University School of Medicine, New Haven, Connecticut 06510
| | - Tai Yi
- Department of Immunobiology, Interdepartmental Program in Vascular Biology and Therapeutics, Yale University School of Medicine, New Haven, Connecticut 06510
| | - Deepak A. Rao
- Department of Immunobiology, Interdepartmental Program in Vascular Biology and Therapeutics, Yale University School of Medicine, New Haven, Connecticut 06510
| | - Jordan S. Pober
- Department of Immunobiology, Interdepartmental Program in Vascular Biology and Therapeutics, Yale University School of Medicine, New Haven, Connecticut 06510
| | - George Tellides
- Department of Surgery, Interdepartmental Program in Vascular Biology and Therapeutics, Yale University School of Medicine, New Haven, Connecticut 06510
,Veterans Affairs Connecticut Healthcare System, West Haven, Connecticut 06516
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48
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Doran AC, Lipinski MJ, Oldham SN, Garmey JC, Campbell KA, Skaflen MD, Cutchins A, Lee DJ, Glover DK, Kelly KA, Galkina EV, Ley K, Witztum JL, Tsimikas S, Bender TP, McNamara CA. B-cell aortic homing and atheroprotection depend on Id3. Circ Res 2011; 110:e1-12. [PMID: 22034493 DOI: 10.1161/circresaha.111.256438] [Citation(s) in RCA: 97] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
RATIONALE B cells are abundant in the adventitia of normal and diseased vessels. Yet, the molecular and cellular mechanisms mediating homing of B cells to the vessel wall and B-cell effects on atherosclerosis are poorly understood. Inhibitor of differentiation-3 (Id3) is important for atheroprotection in mice and polymorphism in the human ID3 gene has been implicated as a potential risk marker of atherosclerosis in humans. Yet, the role of Id3 in B-cell regulation of atherosclerosis is unknown. OBJECTIVE To determine if Id3 regulates B-cell homing to the aorta and atheroprotection and identify molecular and cellular mechanisms mediating this effect. METHODS AND RESULTS Loss of Id3 in Apoe(-/-) mice resulted in early and increased atherosclerosis. Flow cytometry revealed a defect in Id3(-/-) Apoe(-/-) mice in the number of B cells in the aorta but not the spleen, lymph nodes, and circulation. Similarly, B cells transferred from Id3(-/-) Apoe(-/-) mice into B-cell-deficient mice reconstituted spleen, lymph node, and blood similarly to B cells from Id3(+/+) Apoe(-/-) mice, but aortic reconstitution and B-cell-mediated inhibition of diet-induced atherosclerosis was significantly impaired. In addition to retarding initiation of atherosclerosis, B cells homed to regions of existing atherosclerosis, reduced macrophage content in plaque, and attenuated progression of disease. The chemokine receptor CCR6 was identified as an important Id3 target mediating aortic homing and atheroprotection. CONCLUSIONS Together, these results are the first to identify the Id3-CCR6 pathway in B cells and demonstrate its role in aortic B-cell homing and B-cell-mediated protection from early atherosclerosis.
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Affiliation(s)
- Amanda C Doran
- University of Virginia, PO Box 801394, 415 Lane Rd, Charlottesville, VA 22908, USA.
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Lahoute C, Herbin O, Mallat Z, Tedgui A. Adaptive immunity in atherosclerosis: mechanisms and future therapeutic targets. Nat Rev Cardiol 2011; 8:348-58. [PMID: 21502963 DOI: 10.1038/nrcardio.2011.62] [Citation(s) in RCA: 177] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Chronic inflammation drives the development of atherosclerosis, and adaptive immunity is deeply involved in this process. Initial studies attributed a pathogenic role to T cells in atherosclerosis, mainly owing to the proatherogenic role of the T-helper (T(H))-1 cell subset, whereas the influence of T(H)2 and T(H)17 subsets is still debated. Today we know that T regulatory cells play a critical role in the protection against atherosclerotic lesion development and inflammation. In contrast to T cells, B cells were initially considered to be protective in atherosclerosis, assumingly through the production of protective antibodies against oxidized LDL. This concept has now been refined and proatherogenic roles of certain mature B cell subsets have been identified. We review the current knowledge about the role of various lymphocyte subsets in the development and progression of atherosclerosis and highlight future targets for immunomodulatory therapy.
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Affiliation(s)
- Charlotte Lahoute
- French National Institute of Health and Medical Research, Paris Cardiovascular Research Center, Université Paris Descartes, 56 rue Leblanc, Paris, France
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50
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Michel JB, Virmani R, Arbustini E, Pasterkamp G. Intraplaque haemorrhages as the trigger of plaque vulnerability. Eur Heart J 2011; 32:1977-85, 1985a, 1985b, 1985c. [PMID: 21398643 PMCID: PMC3155759 DOI: 10.1093/eurheartj/ehr054] [Citation(s) in RCA: 248] [Impact Index Per Article: 19.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Atherothrombosis remains one of the main causes of morbidity and mortality in the western countries. Human atherothrombotic disease begins early in life in relation to circulating lipid retention in the inner vascular wall. Risk factors enhance the progression towards clinical expression: dyslipidaemia, diabetes, smoking, hypertension, ageing, etc. The evolution from the initial lipid retention in the arterial wall to clinical events is a continuum of increasingly complex biological processes. Current strategies to fight the consequences of atherothrombosis are orientated either towards the promotion of a healthy life style and preventive treatment of risk factors, or towards late interventional strategies. Despite this therapeutic arsenal, the incidence of clinical events remains dramatically high, dependent, at least in part, on the increasing frequency of type 2 diabetes and ageing. But some medical treatments, focusing only on prevention of the metabolic risk, have failed to reduce cardiovascular mortality, thus illustrating that our understanding of the pathophysiology of human atherothrombosis leading to clinical events remain incomplete. New paradigms are now emerging which may give rise to novel experimental strategies to improve therapeutic efficacy and prediction of disease progression. Recent studies strengthen the concept that the intraplaque neovascularization and bleeding (Figure 1, upper panel) are events that could play a major role in plaque progression and leucocyte infiltration, and may also serve as a measure of risk for the development of future events. The recent advances in our understanding of IntraPlaque Hemorrhage as a critical event in triggering acute clinical events have important implications for clinical research and possibly future clinical practice.
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Affiliation(s)
- Jean-Baptiste Michel
- UMR 698 Inserm, Paris 7-Denis Diderot University, Xavier Bichat Hospital, 46 rue Henri Huchard, 75018 Paris, France.
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