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Yuan Z, Shu L, Fu J, Yang P, Wang Y, Sun J, Zheng M, Liu Z, Yang J, Song J, Song S, Cai Z. Single-Cell RNA Sequencing Deconstructs the Distribution of Immune Cells Within Abdominal Aortic Aneurysms in Mice. Arterioscler Thromb Vasc Biol 2024; 44:1986-2003. [PMID: 39051127 DOI: 10.1161/atvbaha.124.321129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2024] [Accepted: 07/15/2024] [Indexed: 07/27/2024]
Abstract
BACKGROUND Inflammation is a key component in the development of abdominal aortic aneurysm (AAA), yet insights into the roles of immune cells and their interactions in this process are limited. METHODS Using single-cell RNA transcriptomic analysis, we deconstructed the CD45+ cell population in elastase-induced murine AAA at the single-cell level. We isolated each group of immune cells from murine AAA tissue at different time points and divided them into several subtypes, listed the remarkable differentially expressed genes, explored the developmental trajectories of immune cells, and demonstrated the interactions among them. RESULTS Our findings reveal significant differences in several immune cell subsets, including macrophages, dendritic cells, and T cells, within the AAA microenvironment compared with the normal aorta. Especially, conventional dendritic cell type 1 exclusively existed in the AAA tissue rather than the normal aortas. Via CellChat analysis, we identified several intercellular communication pathways like visfatin, which targets monocyte differentiation and neutrophil extracellular trap-mediated interaction between neutrophils and dendritic cells, which might contribute to AAA development. Some of these pathways were validated in human AAA. CONCLUSIONS Despite the absence of external pathogenic stimuli, AAA tissues develop a complex inflammatory microenvironment involving numerous immune cells. In-depth studies of the inflammatory network shall provide new strategies for patients with AAA.
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MESH Headings
- Aortic Aneurysm, Abdominal/immunology
- Aortic Aneurysm, Abdominal/genetics
- Aortic Aneurysm, Abdominal/chemically induced
- Aortic Aneurysm, Abdominal/pathology
- Aortic Aneurysm, Abdominal/metabolism
- Animals
- Single-Cell Analysis
- Disease Models, Animal
- Mice, Inbred C57BL
- Aorta, Abdominal/pathology
- Aorta, Abdominal/metabolism
- Aorta, Abdominal/immunology
- Mice
- Dendritic Cells/immunology
- Dendritic Cells/metabolism
- Humans
- Macrophages/metabolism
- Macrophages/immunology
- Male
- Transcriptome
- RNA-Seq
- T-Lymphocytes/immunology
- T-Lymphocytes/metabolism
- Gene Expression Profiling/methods
- Pancreatic Elastase
- Cell Communication
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Affiliation(s)
- Zhen Yuan
- Departments of Cardiology (Z.Y., L.S., Y.W., Z.C.), The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
- State Key Laboratory of Transvascular Implantation Devices, China (Z.Y., L.S., Y.W., Z.C.)
- Cardiovascular Key Laboratory of Zhejiang Province, Hangzhou, China (Z.Y., L.S., Y.W., Z.C.)
| | - Li Shu
- Departments of Cardiology (Z.Y., L.S., Y.W., Z.C.), The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
- State Key Laboratory of Transvascular Implantation Devices, China (Z.Y., L.S., Y.W., Z.C.)
- Cardiovascular Key Laboratory of Zhejiang Province, Hangzhou, China (Z.Y., L.S., Y.W., Z.C.)
| | - Jiantao Fu
- Institute of Hepatology and Metabolic Diseases, Hangzhou Normal University, China (J.F., P.Y., J.Y.)
| | - Peipei Yang
- Institute of Hepatology and Metabolic Diseases, Hangzhou Normal University, China (J.F., P.Y., J.Y.)
| | - Yidong Wang
- Departments of Cardiology (Z.Y., L.S., Y.W., Z.C.), The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
- State Key Laboratory of Transvascular Implantation Devices, China (Z.Y., L.S., Y.W., Z.C.)
- Cardiovascular Key Laboratory of Zhejiang Province, Hangzhou, China (Z.Y., L.S., Y.W., Z.C.)
| | - Jie Sun
- Pathology (J. Sun, M.Z.), The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Mengsha Zheng
- Pathology (J. Sun, M.Z.), The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Zhenjie Liu
- Vascular Surgery (Z.L.), The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Jin Yang
- Institute of Hepatology and Metabolic Diseases, Hangzhou Normal University, China (J.F., P.Y., J.Y.)
| | - Jiangping Song
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, China (J. Song, S.S.)
| | - Shen Song
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, China (J. Song, S.S.)
| | - Zhejun Cai
- Departments of Cardiology (Z.Y., L.S., Y.W., Z.C.), The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
- State Key Laboratory of Transvascular Implantation Devices, China (Z.Y., L.S., Y.W., Z.C.)
- Cardiovascular Key Laboratory of Zhejiang Province, Hangzhou, China (Z.Y., L.S., Y.W., Z.C.)
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2
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Zhu J, Meganathan I, MacAruthur R, Kassiri Z. Inflammation in Abdominal Aortic Aneurysm: cause or co-morbidity? Can J Cardiol 2024:S0828-282X(24)00926-7. [PMID: 39181326 DOI: 10.1016/j.cjca.2024.08.274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2024] [Revised: 08/12/2024] [Accepted: 08/15/2024] [Indexed: 08/27/2024] Open
Abstract
Aortic aneurysm is a potentially deadly disease. It is chronic degeneration of the aortic wall that involves an inflammatory response and the immune system, aberrant remodeling of the extracellular matrix, and maladaptive transformation of the aortic cells. This review article focuses on the role of the inflammatory cells in abdominal aortic aneurysm. Studies in human aneurysmal specimens and animal models have identified various inflammatory cell types that could contribute to aneurysm formation and or expansion. These include the commonly studied leukocytes (neutrophils and macrophages) as well as the less commonly explored natural killer cells, dendritic cells, T- and B-cells. Despite the well-demonstrated contribution of inflammatory cells and the related signaling pathways to aneurysm development and expansion, anti-inflammatory therapy approaches have demonstrated limitations and may require additional considerations, such as a combinational approach in targeting multiple pathways for significant beneficial outcomes.
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Affiliation(s)
- Jiechun Zhu
- Department of Physiology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
| | - Ilamaran Meganathan
- Department of Physiology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
| | - Roderick MacAruthur
- Department of Cardiac surgery, Mazankowski Alberta Heart Institute, University of Alberta Hospital, Edmonton, AB, Canada
| | - Zamaneh Kassiri
- Department of Physiology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada.
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3
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Jiang H, Huang C, Shi Y, Wang CH, Chen SY, Li J, Wang Q, Li MT, Tian XP, Zeng XF, Zhao Y, Zhao JL. Effect of smoking on thrombotic antiphospholipid syndrome: a 10-year prospective cohort study. Rheumatology (Oxford) 2024; 63:1917-1922. [PMID: 37738261 DOI: 10.1093/rheumatology/kead498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Revised: 08/16/2023] [Accepted: 08/21/2023] [Indexed: 09/24/2023] Open
Abstract
OBJECTIVES Cigarette smoking is an established risk factor for autoimmune diseases. However, whether smoking plays a clear role in thrombotic APS (TAPS) has not been determined. We aimed to investigate the effects of smoking on the clinical characteristics and prognosis of TAPS. METHODS This was a prospective cohort study from 2013 to 2022. During the study period, 297 patients were diagnosed with TAPS, including 82 smokers and 215 non-smokers. After propensity score matching, 57 smokers and 57 non-smokers matched by age and sex were analysed. RESULTS Overall, smokers with TAPS had more cardiovascular risk factors than non-smokers, including hypertension (36.59% vs 14.42%, P < 0.001), obesity (15.85% vs 7.44%, P = 0.029), dyslipidaemia (64.63% vs 48.37%, P = 0.012) and hyperhomocysteinaemia (62.20% vs 36.28%, P < 0.001). Arterial thrombotic events were more common in smokers at diagnosis (62.20% vs 46.05%, P = 0.013), especially myocardial infarction, visceral thrombosis and peripheral vascular thrombosis. After matching, smokers showed balanced cardiovascular risk factors with non-smokers at baseline, but retained a higher prevalence of arterial thrombosis (59.65% vs 33.33%, P = 0.005), mainly distributed in cerebral vascular, cardiovascula and retinal vascular territories. During follow-up, smokers presented a tendency for more recurrent arterial thrombosis and less recurrent venous thrombosis. Smokers had significantly poorer outcomes for organ damage with higher Damage Index for APS score (median 2.00 vs 1.00, P = 0.008), especially in the cardiovascular (26.32% vs 3.51%, P = 0.001), gastrointestinal (15.79% vs 1.75%, P = 0.016) and ophthalmologic (10.53% vs 00.00%, P = 0.027) systems. CONCLUSION Smoking is related to increased arterial events and poor prognosis in TAPS patients. Patients with TAPS should be fully encouraged to avoid smoking.
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Affiliation(s)
- Hui Jiang
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Can Huang
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
- National Clinical Research Center for Dermatologic and Immunologic Diseases, Ministry of Science & Technology, Beijing, China
| | - Yu Shi
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Chu-Han Wang
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Si-Yun Chen
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Jun Li
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Qian Wang
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
- National Clinical Research Center for Dermatologic and Immunologic Diseases, Ministry of Science & Technology, Beijing, China
- State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Beijing, China
- Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China
| | - Meng-Tao Li
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
- National Clinical Research Center for Dermatologic and Immunologic Diseases, Ministry of Science & Technology, Beijing, China
- State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Beijing, China
- Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China
| | - Xin-Ping Tian
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
- National Clinical Research Center for Dermatologic and Immunologic Diseases, Ministry of Science & Technology, Beijing, China
- State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Beijing, China
- Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China
| | - Xiao-Feng Zeng
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
- National Clinical Research Center for Dermatologic and Immunologic Diseases, Ministry of Science & Technology, Beijing, China
- State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Beijing, China
- Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China
| | - Yan Zhao
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
- National Clinical Research Center for Dermatologic and Immunologic Diseases, Ministry of Science & Technology, Beijing, China
- State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Beijing, China
- Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China
| | - Jiu-Liang Zhao
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
- National Clinical Research Center for Dermatologic and Immunologic Diseases, Ministry of Science & Technology, Beijing, China
- State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Beijing, China
- Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China
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4
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Guo M, Ji S, Wang H, Zhang J, Zhu J, Yang G, Chen L. Myeloid Cell mPGES-1 Deletion Attenuates Calcium Phosphate-induced Abdominal Aortic Aneurysm in Male Mice. Inflammation 2024:10.1007/s10753-024-02055-w. [PMID: 38865056 DOI: 10.1007/s10753-024-02055-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 05/06/2024] [Accepted: 05/15/2024] [Indexed: 06/13/2024]
Abstract
Microsomal PGE2 synthase (mPGES)-1 is the key enzyme responsible for synthesizing inflammatory prostaglandin E2 (PGE2). Our previous studies have shown that deletion mPGES-1 in myeloid cells hinders atherogenesis, suppresses vascular proliferative response to injury and enhances survival after myocardial infarction. Here we aimed to further explore the influence of myeloid cell mPGES-1 deletion in abdominal aortic aneurysm (AAA) formation. The AAA was triggered by applying 0.5 M calcium phosphate (CaPO4) to the infrarenal aorta of both myeloid mPGES-1 knockout (Mac-mPGES-1-KO) and their littermate control Mac-mPGES-1-WT mice. AAA induction was assessed by calculating the expansion of the infrarenal aortic diameter 4 weeks after CaPO4 application. The maximum diameters of the aortas were measured by morphometry and the mean maximal diameters were calculated. Paraffin sections of the infrarenal aortas were examined for morphological analysis and immunohistochemical staining. The results showed that myeloid cell mPGES-1 deletion significantly mitigated AAA formation, including reducing expansion of the infrarenal aorta, preventing elastic lamellar degradation, and decreasing aortic calcium deposition. Immunohistochemical staining further indicated that macrophage infiltration and matrix metalloproteinase 2 (MMP2) expression was attenuated in the Mac-mPGES-1-KO aortas. Consistently, in vitro experiments showed that expression of pro-inflammatory cytokines and MMPs was significantly reduced when mPGES-1 was lacking in the primary cultured peritoneal macrophages. These data altogether demonstrated that deletion of mPGES-1 in myeloid cells may attenuate AAA formation and targeting myeloid cell mPGES-1 could potentially offer an effective strategy for the treatment and prevention of vascular inflammatory diseases.
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Affiliation(s)
- Meina Guo
- Advanced Institute for Medical Sciences, Dalian Medical University, Dalian, 116044, China
| | - Shuang Ji
- Advanced Institute for Medical Sciences, Dalian Medical University, Dalian, 116044, China
| | - Hui Wang
- Advanced Institute for Medical Sciences, Dalian Medical University, Dalian, 116044, China
| | - Jiayang Zhang
- Health Science Center, East China Normal University, Shanghai, 200241, China
| | - Jingwen Zhu
- Advanced Institute for Medical Sciences, Dalian Medical University, Dalian, 116044, China
| | - Guangrui Yang
- School of Clinical Medicine, Shanghai University of Medicine and Health Sciences, Shanghai, 201318, China
| | - Lihong Chen
- Advanced Institute for Medical Sciences, Dalian Medical University, Dalian, 116044, China.
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5
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Liu Z, Feng G, Chen Y, Fan J, Liang Z, Bi J, Dai X. Hyperhomocysteinemia may aggravate abdominal aortic aneurysm formation by up-regulating RASSF2. Gene 2024; 898:148036. [PMID: 38036076 DOI: 10.1016/j.gene.2023.148036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Revised: 11/14/2023] [Accepted: 11/24/2023] [Indexed: 12/02/2023]
Abstract
Abdominal aortic aneurysm (AAA) is a fatal cardiovascular disorder with high mortality and morbidity rates. To date, no drug has shown to significantly alleviate the risk of AAA. Previous studies have indicated that hyperhomocysteinemia (HHcy) significantly increases the incidence of AAA by disrupting endothelial cell homeostasis; however, the potential molecular mechanisms require clarification. Herein, we aimed to integrate transcriptomics analysis and molecular biology experiments to explore the potential molecular targets by which HHcy may increase the incidence of AAA. We integrated two AAA data profiles (GSE57691 and GSE7084) based on previously published microarray ribonucleic acid sequencing (RNAseq) data from the GEO database. Additionally, 500 μM homocysteine-treated human aorta endothelium cells microarray dataset (GSE175748) was downloaded and processed. Subsequently, single-cell RNA-seq profiles of the aortic aneurysms (GSE155468) were downloaded, scaled, and processed for further analysis. The microarray profiles analysis demonstrated that the Ras association domain family member 2 (RASSF2) and interleukin (IL)-1β are potentially the target genes involved in the HHcy-mediated aggravation of AAA formation. Single-cell RNAseq analysis revealed that RASSF2 might impair endothelial cell function by increasing inflammatory cell infiltration to participate in AAA formation. Finally, we conducted reverse transcription quantitative polymerase chain reaction and immunofluorescence analysis to validate the up-regulated mRNA expression of RASSF2 (p = 0.008) and IL-1β (p = 0.002) in AAA tissue compared to control tissue. Immunofluorescence staining revealed overexpression of RASSF2 protein in AAA tissue sections compared to control tissue (p = 0.037). Co-localization of RASSF2 and the aortic endothelium cell marker, CD31, was observed in tissue sections, indicating the potential involvement of RASSF2 in aortic endothelial cells. To summarise, our preliminary study revealed that HHcy may worsen AAA formation by up-regulating the expression of RASSF2 and IL-1β in aortic endothelium cells.
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Affiliation(s)
- Zongwei Liu
- Department of Vascular surgery of Tianjin Medical University General Hospital, Tianjin, PR China
| | - Guilin Feng
- Department of Vascular surgery of Tianjin Medical University General Hospital, Tianjin, PR China
| | - Yonghui Chen
- Department of Vascular surgery of Tianjin Medical University General Hospital, Tianjin, PR China
| | - Jibo Fan
- Department of Vascular surgery of Tianjin Medical University General Hospital, Tianjin, PR China
| | - Zhian Liang
- Department of Vascular surgery of Tianjin Medical University General Hospital, Tianjin, PR China
| | - Jiaxue Bi
- Department of Vascular surgery of Tianjin Medical University General Hospital, Tianjin, PR China.
| | - Xiangchen Dai
- Department of Vascular surgery of Tianjin Medical University General Hospital, Tianjin, PR China.
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6
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Li S, Li J, Cheng W, He W, Dai SS. Independent and Interactive Roles of Immunity and Metabolism in Aortic Dissection. Int J Mol Sci 2023; 24:15908. [PMID: 37958896 PMCID: PMC10647240 DOI: 10.3390/ijms242115908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 10/22/2023] [Accepted: 10/27/2023] [Indexed: 11/15/2023] Open
Abstract
Aortic dissection (AD) is a cardiovascular disease that seriously endangers the lives of patients. The mortality rate of this disease is high, and the incidence is increasing annually, but the pathogenesis of AD is complicated. In recent years, an increasing number of studies have shown that immune cell infiltration in the media and adventitia of the aorta is a novel hallmark of AD. These cells contribute to changes in the immune microenvironment, which can affect their own metabolism and that of parenchymal cells in the aortic wall, which are essential factors that induce degeneration and remodeling of the vascular wall and play important roles in the formation and development of AD. Accordingly, this review focuses on the independent and interactive roles of immunity and metabolism in AD to provide further insights into the pathogenesis, novel ideas for diagnosis and new strategies for treatment or early prevention of AD.
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Affiliation(s)
- Siyu Li
- School of Medicine, Chongqing University, Chongqing 400044, China
- Department of Biochemistry and Molecular Biology, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Jun Li
- Department of Cardiac Surgery, The First Affiliated Hospital of Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Wei Cheng
- Department of Cardiac Surgery, The First Affiliated Hospital of Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Wenhui He
- Department of Biochemistry and Molecular Biology, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Shuang-Shuang Dai
- School of Medicine, Chongqing University, Chongqing 400044, China
- Department of Biochemistry and Molecular Biology, Third Military Medical University (Army Medical University), Chongqing 400038, China
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7
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Qin R, Wu H, Guan H, Tang C, Zheng Z, Deng C, Chen C, Zou Q, Lu L, Ma K. Anti-phospholipid autoantibodies in human diseases. Clin Immunol 2023; 256:109803. [PMID: 37821073 DOI: 10.1016/j.clim.2023.109803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 09/24/2023] [Accepted: 10/05/2023] [Indexed: 10/13/2023]
Abstract
Anti-phospholipid autoantibodies are a group of antibodies that can specifically bind to anionic phospholipids and phospholipid protein complexes. Recent studies have reported elevated serum anti-phospholipid autoantibody levels in patients with antiphospholipid syndrome, systemic lupus erythematosus, rheumatoid arthritis, metabolic disorders, malaria, SARS-CoV-2 infection, obstetric diseases and cardiovascular diseases. However, the underlying mechanisms of anti-phospholipid autoantibodies in disease pathogenesis remain largely unclear. Emerging evidence indicate that anti-phospholipid autoantibodies modulate NETs formation, monocyte activation, blockade of apoptotic cell phagocytosis in macrophages, complement activation, dendritic cell activation and vascular endothelial cell activation. Herein, we provide an update on recent advances in elucidating the effector mechanisms of anti-phospholipid autoantibodies in the pathogenesis of various diseases, which may facilitate the development of potential therapeutic targets for the treatment of anti-phospholipid autoantibody-related disorders.
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Affiliation(s)
- Rencai Qin
- Shenzhen Key Laboratory for Systems Medicine in Inflammatory Diseases, Centre for Infection and Immunity Studies (CIIS), School of Medicine, The Seventh Affiliated Hospital, Shenzhen Campus of Sun Yat-Sen University, Shenzhen, Guangdong 518107, China
| | - Haiqi Wu
- Shenzhen Key Laboratory for Systems Medicine in Inflammatory Diseases, Centre for Infection and Immunity Studies (CIIS), School of Medicine, The Seventh Affiliated Hospital, Shenzhen Campus of Sun Yat-Sen University, Shenzhen, Guangdong 518107, China
| | - Hui Guan
- Shenzhen Key Laboratory for Systems Medicine in Inflammatory Diseases, Centre for Infection and Immunity Studies (CIIS), School of Medicine, The Seventh Affiliated Hospital, Shenzhen Campus of Sun Yat-Sen University, Shenzhen, Guangdong 518107, China
| | - Chun Tang
- Shenzhen Key Laboratory for Systems Medicine in Inflammatory Diseases, Centre for Infection and Immunity Studies (CIIS), School of Medicine, The Seventh Affiliated Hospital, Shenzhen Campus of Sun Yat-Sen University, Shenzhen, Guangdong 518107, China
| | - Zhihua Zheng
- Shenzhen Key Laboratory for Systems Medicine in Inflammatory Diseases, Centre for Infection and Immunity Studies (CIIS), School of Medicine, The Seventh Affiliated Hospital, Shenzhen Campus of Sun Yat-Sen University, Shenzhen, Guangdong 518107, China
| | - Chong Deng
- Department of Pathology and Shenzhen Institute of Research and Innovation, The University of Hong Kong, Hong Kong 999077, China
| | - Chengshun Chen
- Department of Rheumatology and Immunology, First Affiliated Hospital of Army Medical University, Chongqing, China
| | - Qinghua Zou
- Department of Rheumatology and Immunology, First Affiliated Hospital of Army Medical University, Chongqing, China.
| | - Liwei Lu
- Department of Pathology and Shenzhen Institute of Research and Innovation, The University of Hong Kong, Hong Kong 999077, China.
| | - Kongyang Ma
- Shenzhen Key Laboratory for Systems Medicine in Inflammatory Diseases, Centre for Infection and Immunity Studies (CIIS), School of Medicine, The Seventh Affiliated Hospital, Shenzhen Campus of Sun Yat-Sen University, Shenzhen, Guangdong 518107, China.
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8
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Hu Y, Cai Z, He B. Smooth Muscle Heterogeneity and Plasticity in Health and Aortic Aneurysmal Disease. Int J Mol Sci 2023; 24:11701. [PMID: 37511460 PMCID: PMC10380637 DOI: 10.3390/ijms241411701] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Revised: 07/16/2023] [Accepted: 07/18/2023] [Indexed: 07/30/2023] Open
Abstract
Vascular smooth muscle cells (VSMCs) are the predominant cell type in the medial layer of the aorta, which plays a critical role in the maintenance of aortic wall integrity. VSMCs have been suggested to have contractile and synthetic phenotypes and undergo phenotypic switching to contribute to the deteriorating aortic wall structure. Recently, the unprecedented heterogeneity and diversity of VSMCs and their complex relationship to aortic aneurysms (AAs) have been revealed by high-resolution research methods, such as lineage tracing and single-cell RNA sequencing. The aortic wall consists of VSMCs from different embryonic origins that respond unevenly to genetic defects that directly or indirectly regulate VSMC contractile phenotype. This difference predisposes to hereditary AAs in the aortic root and ascending aorta. Several VSMC phenotypes with different functions, for example, secreting VSMCs, proliferative VSMCs, mesenchymal stem cell-like VSMCs, immune-related VSMCs, proinflammatory VSMCs, senescent VSMCs, and stressed VSMCs are identified in non-hereditary AAs. The transformation of VSMCs into different phenotypes is an adaptive response to deleterious stimuli but can also trigger pathological remodeling that exacerbates the pathogenesis and development of AAs. This review is intended to contribute to the understanding of VSMC diversity in health and aneurysmal diseases. Papers that give an update on VSMC phenotype diversity in health and aneurysmal disease are summarized and recent insights on the role of VSMCs in AAs are discussed.
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Affiliation(s)
- Yunwen Hu
- Department of Cardiology, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
| | - Zhaohua Cai
- Department of Cardiology, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
| | - Ben He
- Department of Cardiology, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
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9
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Du X, Ma X, Tan Y, Shao F, Li C, Zhao Y, Miao Y, Han L, Dang G, Song Y, Yang D, Deng Z, Wang Y, Jiang C, Kong W, Feng J, Wang X. B cell-derived anti-beta 2 glycoprotein I antibody mediates hyperhomocysteinemia-aggravated hypertensive glomerular lesions by triggering ferroptosis. Signal Transduct Target Ther 2023; 8:103. [PMID: 36907919 PMCID: PMC10008839 DOI: 10.1038/s41392-023-01313-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 10/14/2022] [Accepted: 01/09/2023] [Indexed: 03/14/2023] Open
Abstract
Hyperhomocysteinemia (HHcy) is a risk factor for chronic kidney diseases (CKDs) that affects about 85% CKD patients. HHcy stimulates B cells to secrete pathological antibodies, although it is unknown whether this pathway mediates kidney injury. In HHcy-treated 2-kidney, 1-clip (2K1C) hypertensive murine model, HHcy-activated B cells secreted anti-beta 2 glycoprotein I (β2GPI) antibodies that deposited in glomerular endothelial cells (GECs), exacerbating glomerulosclerosis and reducing renal function. Mechanistically, HHcy 2K1C mice increased phosphatidylethanolamine (PE) (18:0/20:4, 18:0/22:6, 16:0/20:4) in kidney tissue, as determined by lipidomics. GECs oxidative lipidomics validated the increase of oxidized phospholipids upon Hcy-activated B cells culture medium (Hcy-B CM) treatment, including PE (18:0/20:4 + 3[O], PE (18:0a/22:4 + 1[O], PE (18:0/22:4 + 2[O] and PE (18:0/22:4 + 3[O]). PE synthases ethanolamine kinase 2 (etnk2) and ethanolamine-phosphate cytidylyltransferase 2 (pcyt2) were increased in the kidney GECs of HHcy 2K1C mice and facilitated polyunsaturated PE synthesis to act as lipid peroxidation substrates. In HHcy 2K1C mice and Hcy-B CM-treated GECs, the oxidative environment induced by iron accumulation and the insufficient clearance of lipid peroxides caused by transferrin receptor (TFR) elevation and down-regulation of SLC7A11/glutathione peroxidase 4 (GPX4) contributed to GECs ferroptosis of the kidneys. In vivo, pharmacological depletion of B cells or inhibition of ferroptosis mitigated the HHcy-aggravated hypertensive renal injury. Consequently, our findings uncovered a novel mechanism by which B cell-derived pathogenic anti-β2GPI IgG generated by HHcy exacerbated hypertensive kidney damage by inducing GECs ferroptosis. Targeting B cells or ferroptosis may be viable therapeutic strategies for ameliorating lipid peroxidative renal injury in HHcy patients with hypertensive nephropathy.
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Affiliation(s)
- Xing Du
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Peking University, 100191, Beijing, P. R. China
| | - Xiaolong Ma
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Peking University, 100191, Beijing, P. R. China
| | - Ying Tan
- Department of Nephrology, Peking University First Hospital, 100034, Beijing, P. R. China
| | - Fangyu Shao
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Peking University, 100191, Beijing, P. R. China
| | - Chun Li
- Department of Rheumatology and Immunology, Peking University People's Hospital, Beijing, China
| | - Yang Zhao
- Department of Laboratory Medicine, Peking University Third Hospital, 100083, Beijing, P. R. China
| | - Yutong Miao
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Peking University, 100191, Beijing, P. R. China
| | - Lulu Han
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Peking University, 100191, Beijing, P. R. China
| | - Guohui Dang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Peking University, 100191, Beijing, P. R. China
| | - Yuwei Song
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Peking University, 100191, Beijing, P. R. China
| | - Dongmin Yang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Peking University, 100191, Beijing, P. R. China
| | - Zhenling Deng
- Department of Nephrology, Peking University Third Hospital, 100083, Beijing, P. R. China
| | - Yue Wang
- Department of Nephrology, Peking University Third Hospital, 100083, Beijing, P. R. China
| | - Changtao Jiang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Peking University, 100191, Beijing, P. R. China
| | - Wei Kong
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Peking University, 100191, Beijing, P. R. China
| | - Juan Feng
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Peking University, 100191, Beijing, P. R. China.
| | - Xian Wang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Peking University, 100191, Beijing, P. R. China.
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10
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The mechanism and therapy of aortic aneurysms. Signal Transduct Target Ther 2023; 8:55. [PMID: 36737432 PMCID: PMC9898314 DOI: 10.1038/s41392-023-01325-7] [Citation(s) in RCA: 36] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Revised: 12/15/2022] [Accepted: 01/14/2023] [Indexed: 02/05/2023] Open
Abstract
Aortic aneurysm is a chronic aortic disease affected by many factors. Although it is generally asymptomatic, it poses a significant threat to human life due to a high risk of rupture. Because of its strong concealment, it is difficult to diagnose the disease in the early stage. At present, there are no effective drugs for the treatment of aneurysms. Surgical intervention and endovascular treatment are the only therapies. Although current studies have discovered that inflammatory responses as well as the production and activation of various proteases promote aortic aneurysm, the specific mechanisms remain unclear. Researchers are further exploring the pathogenesis of aneurysms to find new targets for diagnosis and treatment. To better understand aortic aneurysm, this review elaborates on the discovery history of aortic aneurysm, main classification and clinical manifestations, related molecular mechanisms, clinical cohort studies and animal models, with the ultimate goal of providing insights into the treatment of this devastating disease. The underlying problem with aneurysm disease is weakening of the aortic wall, leading to progressive dilation. If not treated in time, the aortic aneurysm eventually ruptures. An aortic aneurysm is a local enlargement of an artery caused by a weakening of the aortic wall. The disease is usually asymptomatic but leads to high mortality due to the risk of artery rupture.
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11
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The binding of autotaxin to integrins mediates hyperhomocysteinemia-potentiated platelet activation and thrombosis in mice and humans. Blood Adv 2022; 6:46-61. [PMID: 34559203 PMCID: PMC8753216 DOI: 10.1182/bloodadvances.2021004572] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Accepted: 07/26/2021] [Indexed: 11/23/2022] Open
Abstract
Hcy increases integrin αIIbβ3 activation by promoting phospholipid hydrolysis and ATX interaction in platelets. Targeting ATX-mediated integrin αIIbβ3 activation alleviates HHcy-potentiated thrombosis.
Hyperhomocysteinemia (HHcy) is associated with an exaggerated platelet thrombotic response at sites of vascular injury. In this study, human medical examination showed that elevated human plasma Hcy levels correlated positively with enhanced blood coagulation and platelet activity, suggesting that humans with HHcy are more prone to thrombus formation at the sites of vascular injury. Accordingly, we observed accelerated platelet activation, primary hemostasis, and thrombus formation in apolipoprotein E-deficient (ApoE−/−) mice with acute or chronic HHcy. Upon homocysteine (Hcy) administration in C57BL/6J mice, platelet aggregation, spreading and clot retraction were markedly induced. More important, Hcy increased the affinity of platelet integrin αIIbβ3 with ligands and enhanced integrin outside-in signaling by promoting membrane phosphatidylserine exposure in vitro. Mechanistically, lipidomics analysis showed that lysophosphatidylcholines were the primary metabolites leading to clustering of HHcy-stimulated platelets. Cytosolic phospholipase A2 (cPLA2) activity and autotaxin (ATX, a secreted lysophospholipase D) secretion were upregulated by Hcy, leading to membrane phospholipid hydrolysis and PS exposure. Moreover, secreted ATX directly interacted with integrin β3. Inhibitors of cPLA2 and ATX activity blocked integrin αIIbβ3 outside-in signaling and thrombosis in HHcy ApoE−/− mice. In this study, we identified a novel mechanism by which HHcy promotes platelet membrane phospholipid catabolism and extracellular ATX secretion to activate integrin outside-in signaling, consequently exacerbating thrombosis and the results revealed an innovative approach to treating HHcy-related thrombotic diseases.
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12
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VWF, Platelets and the Antiphospholipid Syndrome. Int J Mol Sci 2021; 22:ijms22084200. [PMID: 33919627 PMCID: PMC8074042 DOI: 10.3390/ijms22084200] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 04/13/2021] [Accepted: 04/14/2021] [Indexed: 12/11/2022] Open
Abstract
The antiphospholipid syndrome (APS) is characterized by thrombosis and/or pregnancy morbidity with the persistent presence of antiphospholipid antibodies (aPLs). Laboratory criteria for the classification of APS include the detection of lupus anticoagulant (LAC), anti-cardiolipin (aCL) antibodies and anti-β2glycoprotein I (aβ2GPI) antibodies. Clinical criteria for the classification of thrombotic APS include venous and arterial thrombosis, along with microvascular thrombosis. Several aPLs, including LAC, aβ2GPI and anti-phosphatidylserine/prothrombin antibodies (aPS/PT) have been associated with arterial thrombosis. The Von Willebrand Factor (VWF) plays an important role in arterial thrombosis by mediating platelet adhesion and aggregation. Studies have shown that aPLs antibodies present in APS patients are able to increase the risk of arterial thrombosis by upregulating the plasma levels of active VWF and by promoting platelet activation. Inflammatory reactions induced by APS may also provide a suitable condition for arterial thrombosis, mostly ischemic stroke and myocardial infarction. The presence of other cardiovascular risk factors can enhance the effect of aPLs and increase the risk for thrombosis even more. These factors should therefore be taken into account when investigating APS-related arterial thrombosis. Nevertheless, the exact mechanism by which aPLs can cause thrombosis remains to be elucidated.
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13
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Yuan Z, Lu Y, Wei J, Wu J, Yang J, Cai Z. Abdominal Aortic Aneurysm: Roles of Inflammatory Cells. Front Immunol 2021; 11:609161. [PMID: 33613530 PMCID: PMC7886696 DOI: 10.3389/fimmu.2020.609161] [Citation(s) in RCA: 76] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Accepted: 12/18/2020] [Indexed: 12/14/2022] Open
Abstract
Abdominal aortic aneurysms (AAAs) are local dilations of infrarenal segment of aortas. Molecular mechanisms underlying the pathogenesis of AAA remain not fully clear. However, inflammation has been considered as a central player in the development of AAA. In the past few decades, studies demonstrated a host of inflammatory cells, including T cells, macrophages, dendritic cells, neutrophils, B cells, and mast cells, etc. infiltrating into aortic walls, which implicated their crucial roles. In addition to direct cell contacts and cytokine or protease secretions, special structures like inflammasomes and neutrophil extracellular traps have been investigated to explore their functions in aneurysm formation. The above-mentioned inflammatory cells and associated structures may initiate and promote AAA expansion. Understanding their impacts and interaction networks formation is meaningful to develop new strategies of screening and pharmacological interventions for AAA. In this review, we aim to discuss the roles and mechanisms of these inflammatory cells in AAA pathogenesis.
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Affiliation(s)
- Zhen Yuan
- Department of Cardiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yi Lu
- Department of Cardiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Jia Wei
- Department of Urology, Children's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Jiaqi Wu
- Translational Medicine Center, The Affiliated Hospital of Hangzhou Normal University, Hangzhou, China
| | - Jin Yang
- Translational Medicine Center, The Affiliated Hospital of Hangzhou Normal University, Hangzhou, China.,Institute of Hepatology and Metabolic Diseases, Hangzhou Normal University, Hangzhou, China
| | - Zhejun Cai
- Department of Cardiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Jiaxing Key Laboratory of Cardiac Rehabilitation, Jiaxing, China
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14
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Miao Y, Zhao Y, Han L, Ma X, Deng J, Yang J, Lü S, Shao F, Kong W, Wang W, Xu Q, Wang X, Feng J. NSun2 regulates aneurysm formation by promoting autotaxin expression and T cell recruitment. Cell Mol Life Sci 2021; 78:1709-1727. [PMID: 32734582 PMCID: PMC11073013 DOI: 10.1007/s00018-020-03607-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Revised: 07/09/2020] [Accepted: 07/22/2020] [Indexed: 01/08/2023]
Abstract
Abdominal aortic aneurysm (AAA) is characterized by inflammatory cell infiltration and aggravated by hyperhomocysteinemia (HHcy). It is unknown whether the homocysteine (Hcy)-activated RNA methyltransferase NOP2/Sun domain family member 2 (NSun2) is associated with AAA. Here, we found that NSun2 deficiency significantly attenuated elastase-induced and HHcy-aggravated murine AAA with decreased T cell infiltration in the vessel walls. T cell labeling and adoptive transfer experiments confirmed that NSun2 deficiency inhibited the chemotaxis of vessels to T cells. RNA sequencing of endothelial cells showed that Hcy induced the accumulation of various metabolic enzymes of the phospholipid PC-LPC-LPA metabolic pathway, especially autotaxin (ATX). In the elastase-induced mouse model of AAA, ATX was specifically expressed in the endothelium and the plasma ATX concentration was upregulated and even higher in the HHcy group, which were decreased dramatically by NSun2 knockdown. In vitro Transwell experiments showed that ATX dose-dependently promoted T cell migration. HHcy may upregulate endothelial ATX expression and secretion and in turn recruit T cells into the vessel walls to induce vascular inflammation and consequently accelerate the pathogenesis of AAA. Mechanistically, secreted ATX interacted with T cells by binding to integrin α4, which subsequently activated downstream FAK/Src-RhoA signaling pathways and then induced T cell chemokinesis and adhesion. ATX overexpression in the vessel walls reversed the inhibited development of AAA in the NSun2-deficient mice. Therefore, NSun2 mediates the development of HHcy-aggravated AAA primarily by increasing endothelial ATX expression, secretion and T cell migration, which is a novel mechanism for HHcy-aggravated vascular inflammation and pathogenesis of AAA.
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Affiliation(s)
- Yutong Miao
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, 100191, People's Republic of China
| | - Yang Zhao
- Department of Laboratory Medicine, Peking University Third Hospital, Beijing, People's Republic of China
| | - Lulu Han
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, 100191, People's Republic of China
| | - Xiaolong Ma
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, 100191, People's Republic of China
| | - Jiacheng Deng
- Cardiovascular Division, BHF Center for Vascular Regeneration, King's College London, London, UK
| | - Juan Yang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, 100191, People's Republic of China
| | - Silin Lü
- State Key Laboratory of Bioactive Substances and Function of Natural Medicine, Institute of Materia Medica, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, People's Republic of China
| | - Fangyu Shao
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, 100191, People's Republic of China
| | - Wei Kong
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, 100191, People's Republic of China
| | - Wengong Wang
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Peking University, Beijing, People's Republic of China
| | - Qingbo Xu
- Cardiovascular Division, BHF Center for Vascular Regeneration, King's College London, London, UK
| | - Xian Wang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, 100191, People's Republic of China.
| | - Juan Feng
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, 100191, People's Republic of China.
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15
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Deng J, Liu J, Cao L, Wang Q, Zhang H, Liu X, Guo W. The Association between Hyperhomocysteinemia and Thoracoabdominal Aortic Aneurysms in Chinese Population. BIOMED RESEARCH INTERNATIONAL 2020; 2020:4691026. [PMID: 32775423 PMCID: PMC7407013 DOI: 10.1155/2020/4691026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Accepted: 07/02/2020] [Indexed: 12/31/2022]
Abstract
OBJECTIVE To shed light on the association between hyperhomocysteinemia (HHcy) and thoracoabdominal aortic aneurysms (TAAAs). METHODS From July 2013 to March 2017, we conducted a matched case-control study involving individuals who presented to the Chinese People's Liberation Army General Hospital and underwent thoracoabdominal magnetic resonance angiography or computed tomography angiography. A total of 73 patients with TAAAs were enrolled in the case group, and 219 sex-matched subjects without TAAAs were included in the control group. We then examined the relationship between HHcy and TAAAs by logistic regression models and subgroup as well as interaction analyses. RESULTS Serum total homocysteine (tHcy) concentrations and the proportion of HHcy were significantly higher in the patients with TAAAs than in those without TAAAs (P < 0.001). Furthermore, the multivariate logistic regression models indicated that participants with HHcy had a 2.14-fold higher risk of TAAAs than those with a normal serum tHcy level (adjusted odds ratio (OR), 2.14; 95% confidence interval, 1.00-4.56). Similarly, each 1 μmol/L increase in the serum tHcy concentration was associated with a 4% higher risk of TAAAs (adjusted OR, 1.04; 95% confidence interval, 1.00-1.07). Subgroup analyses indicated that HHcy tended to be associated with a greater risk of TAAAs in all stratified subgroups (adjusted ORs > 1). Furthermore, the interaction analyses revealed no interactive role in the association between HHcy and TAAAs. CONCLUSIONS The present case-control study suggests that HHcy is an independent risk factor for TAAAs. Larger prospective cohort studies are warranted to validate these findings.
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Affiliation(s)
- Jianqing Deng
- Department of Vascular and Endovascular Surgery, The First Medical Centre, Chinese PLA General Hospital, Beijing, China
| | - Jie Liu
- Department of Vascular and Endovascular Surgery, The First Medical Centre, Chinese PLA General Hospital, Beijing, China
| | - Long Cao
- Department of Vascular and Endovascular Surgery, The First Medical Centre, Chinese PLA General Hospital, Beijing, China
- Department of General Surgery, Chinese PLA No.983 Hospital, Tianjin, China
| | - Qun Wang
- Department of Neurosurgery, The First Medical Centre, Chinese PLA General Hospital, Beijing, China
| | - Hongpeng Zhang
- Department of Vascular and Endovascular Surgery, The First Medical Centre, Chinese PLA General Hospital, Beijing, China
| | - Xiaoping Liu
- Department of Vascular and Endovascular Surgery, The First Medical Centre, Chinese PLA General Hospital, Beijing, China
| | - Wei Guo
- Department of Vascular and Endovascular Surgery, The First Medical Centre, Chinese PLA General Hospital, Beijing, China
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