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Zhai L, Hu W, Li J, Li D, Xia N, Tang T, Nie S, Zhang M, Jiao J, Lv B, Yang F, Lu Y, Zha L, Gu M, Hu X, Wen S, Hu D, Zhang L, Wang W, Cheng X. Unravelling CD4 + T cell diversity and tissue adaptation of Tregs in abdominal aortic aneurysms through single-cell sequencing. Immunology 2024; 172:600-613. [PMID: 38637948 DOI: 10.1111/imm.13796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Accepted: 04/08/2024] [Indexed: 04/20/2024] Open
Abstract
Immune cell infiltration is a significant pathological process in abdominal aortic aneurysms (AAA). T cells, particularly CD4+ T cells, are essential immune cells responsible for substantial infiltration of the aorta. Regulatory T cells (Tregs) in AAA have been identified as tissue-specific; however, the time, location, and mechanism of acquiring the tissue-specific phenotype are still unknown. Using single-cell RNA sequencing (scRNA-seq) on CD4+ T cells from the AAA aorta and spleen, we discovered heterogeneity among CD4+ T cells and identified activated, proliferating and developed aorta Tregs. These Tregs originate in the peripheral tissues and acquire the tissue-specific phenotype in the aorta. The identification of precursors for Tregs in AAA provides new insight into the pathogenesis of AAA.
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Affiliation(s)
- Luna Zhai
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Key Laboratory of Biological Targeted Therapy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Engineering Research Center for Immunological Diagnosis and Therapy of Cardiovascular Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wangling Hu
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Key Laboratory of Biological Targeted Therapy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Engineering Research Center for Immunological Diagnosis and Therapy of Cardiovascular Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jingyong Li
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Key Laboratory of Biological Targeted Therapy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Engineering Research Center for Immunological Diagnosis and Therapy of Cardiovascular Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Dan Li
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Key Laboratory of Biological Targeted Therapy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Engineering Research Center for Immunological Diagnosis and Therapy of Cardiovascular Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ni Xia
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Key Laboratory of Biological Targeted Therapy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Engineering Research Center for Immunological Diagnosis and Therapy of Cardiovascular Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Tingting Tang
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Key Laboratory of Biological Targeted Therapy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Engineering Research Center for Immunological Diagnosis and Therapy of Cardiovascular Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shaofang Nie
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Key Laboratory of Biological Targeted Therapy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Engineering Research Center for Immunological Diagnosis and Therapy of Cardiovascular Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Min Zhang
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Key Laboratory of Biological Targeted Therapy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Engineering Research Center for Immunological Diagnosis and Therapy of Cardiovascular Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jiao Jiao
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Key Laboratory of Biological Targeted Therapy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Engineering Research Center for Immunological Diagnosis and Therapy of Cardiovascular Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Bingjie Lv
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Key Laboratory of Biological Targeted Therapy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Engineering Research Center for Immunological Diagnosis and Therapy of Cardiovascular Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Fen Yang
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Key Laboratory of Biological Targeted Therapy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Engineering Research Center for Immunological Diagnosis and Therapy of Cardiovascular Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yuzhi Lu
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Key Laboratory of Biological Targeted Therapy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Engineering Research Center for Immunological Diagnosis and Therapy of Cardiovascular Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Lingfeng Zha
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Key Laboratory of Biological Targeted Therapy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Engineering Research Center for Immunological Diagnosis and Therapy of Cardiovascular Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Muyang Gu
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Key Laboratory of Biological Targeted Therapy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Engineering Research Center for Immunological Diagnosis and Therapy of Cardiovascular Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiajun Hu
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Key Laboratory of Biological Targeted Therapy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Engineering Research Center for Immunological Diagnosis and Therapy of Cardiovascular Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shuang Wen
- Department of Emergency Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Desheng Hu
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Li Zhang
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Weimin Wang
- Department of Immunology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiang Cheng
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Key Laboratory of Biological Targeted Therapy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Engineering Research Center for Immunological Diagnosis and Therapy of Cardiovascular Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Liu C, Wu H, Li K, Chi Y, Wu Z, Xing C. Identification of biomarkers for abdominal aortic aneurysm in Behçet's disease via mendelian randomization and integrated bioinformatics analyses. J Cell Mol Med 2024; 28:e18398. [PMID: 38785203 PMCID: PMC11117452 DOI: 10.1111/jcmm.18398] [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: 12/26/2023] [Revised: 04/03/2024] [Accepted: 04/30/2024] [Indexed: 05/25/2024] Open
Abstract
Behçet's disease (BD) is a complex autoimmune disorder impacting several organ systems. Although the involvement of abdominal aortic aneurysm (AAA) in BD is rare, it can be associated with severe consequences. In the present study, we identified diagnostic biomarkers in patients with BD having AAA. Mendelian randomization (MR) analysis was initially used to explore the potential causal association between BD and AAA. The Limma package, WGCNA, PPI and machine learning algorithms were employed to identify potential diagnostic genes. A receiver operating characteristic curve (ROC) for the nomogram was constructed to ascertain the diagnostic value of AAA in patients with BD. Finally, immune cell infiltration analyses and single-sample gene set enrichment analysis (ssGSEA) were conducted. The MR analysis indicated a suggestive association between BD and the risk of AAA (odds ratio [OR]: 1.0384, 95% confidence interval [CI]: 1.0081-1.0696, p = 0.0126). Three hub genes (CD247, CD2 and CCR7) were identified using the integrated bioinformatics analyses, which were subsequently utilised to construct a nomogram (area under the curve [AUC]: 0.982, 95% CI: 0.944-1.000). Finally, the immune cell infiltration assay revealed that dysregulation immune cells were positively correlated with the three hub genes. Our MR analyses revealed a higher susceptibility of patients with BD to AAA. We used a systematic approach to identify three potential hub genes (CD247, CD2 and CCR7) and developed a nomogram to assist in the diagnosis of AAA among patients with BD. In addition, immune cell infiltration analysis indicated the dysregulation in immune cell proportions.
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Affiliation(s)
- Chunjiang Liu
- Department of General SurgeryThe Second Affiliated Hospital of Soochow UniversitySuzhouChina
| | - Huadong Wu
- Department of vascular surgeryFirst affiliated Hospital of Huzhou UniversityHuzhouChina
| | - Kuan Li
- Department of General SurgeryKunshan Hospital of Traditional Chinese MedicineKunshanChina
| | - Yongxing Chi
- Department of General SurgeryThe Second Affiliated Hospital of Soochow UniversitySuzhouChina
| | - Zhaoying Wu
- Department of General SurgeryThe Second Affiliated Hospital of Soochow UniversitySuzhouChina
| | - Chungen Xing
- Department of General SurgeryThe Second Affiliated Hospital of Soochow UniversitySuzhouChina
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Jia D, Wang K, Huang L, Zhou Z, Zhang Y, Chen N, Yang Q, Wen Z, Jiang H, Yao C, Wu R. Revealing PPP1R12B and COL1A1 as piRNA pathway genes contributing to abdominal aortic aneurysm through integrated analysis and experimental validation. Gene 2024; 897:148068. [PMID: 38070790 DOI: 10.1016/j.gene.2023.148068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 11/27/2023] [Accepted: 12/05/2023] [Indexed: 01/17/2024]
Abstract
BACKGROUND Abdominal aortic aneurysm (AAA) is a permanent dilation of the abdominal aorta, with a high mortality rate when rupturing. Although lots of piRNA pathway genes (piRPGs) have recently been linked to both neoplastic and non-neoplastic illnesses, their role in AAA is still unknown. Utilizing integrative bioinformatics methods, this research discovered piRPGs as biomarkers for AAA and explore possible molecular mechanisms. METHODS The datasets were obtained from the Gene Expression Omnibus and piRPGs were identified from the Genecards database. The "limma" and "clusterProfiler" R-packages were used to discover differentially expressed genes and perform enrichment analysis, respectively. Hub piRPGs were further filtered using least absolute shrinkage and selection operator regression, random forests, as well as receiver operating characteristic curve. Additionally, multi-factor logistic regression (MLR), extreme gradient boosting (XGboost), and artificial neural network (ANN) were employed to construct prediction models. The relationship between hub piRPGs and immune infiltrating cells and sgGSEA were further studied. The expression of hub piRPGs was verified by qRT-PCR, immunohistochemistry, and western blotting in AAA and normal vascular tissues and analyzed by scRNA-seq in mouse AAA model. SRAMP and cMAP database were utilized for the prediction of N6-methyladenosine (m6A) targets therapeutic drug. RESULTS 34 differentially expressed piRPGs were identified in AAA and enriched in pathways of immune regulation and gene silence. Three piRPGs (PPP1R12B, LRP10, and COL1A1) were further screened as diagnostic genes and used to construct prediction model. Compared with MLR and ANN, Xgboost showed better predictive ability, and PPP1R12B might have the ability to distinguish small and large AAA. Furthermore, the expression levels of PPP1R12B and COL1A1 were consistent with the results of bioinformatics analysis, and PPP1R12B showed a downward trend that may be related to m6A. CONCLUSION The results suggest that piRPGs might serve a significant role in AAA. PPP1R12B, COL1A1, and LRP10 had potential as diagnostic-specific biomarkers for AAA and performed better in XGboost model. The expression and localization of PPP1R12B and COL1A1 were experimentally verified. Besides, downregulation of PPP1R12B caused by m6A might contribute to the formation of AAA.
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Affiliation(s)
- Dongdong Jia
- Department of Vascular Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, PR China; National-Guangdong Joint Engineering Laboratory for Diagnosis and Treatment of Vascular Disease, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510080, PR China
| | - Kangjie Wang
- Department of Vascular Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, PR China; National-Guangdong Joint Engineering Laboratory for Diagnosis and Treatment of Vascular Disease, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510080, PR China
| | - Lin Huang
- National-Guangdong Joint Engineering Laboratory for Diagnosis and Treatment of Vascular Disease, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510080, PR China
| | - Zhihao Zhou
- National-Guangdong Joint Engineering Laboratory for Diagnosis and Treatment of Vascular Disease, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510080, PR China
| | - Yinfeng Zhang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao 266021, PR China
| | - Nuo Chen
- Department of Vascular Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, PR China
| | - Qingqi Yang
- Department of Vascular Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, PR China
| | - Zengjin Wen
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao 266021, PR China
| | - Hui Jiang
- Department of Radiation Oncology, Sun Yat-Sen University Cancer Center, Guangzhou 510060, PR China
| | - Chen Yao
- Department of Vascular Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, PR China; National-Guangdong Joint Engineering Laboratory for Diagnosis and Treatment of Vascular Disease, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510080, PR China
| | - Ridong Wu
- Department of Vascular Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, PR China; National-Guangdong Joint Engineering Laboratory for Diagnosis and Treatment of Vascular Disease, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510080, PR China.
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Deng J, Li D, Zhang X, Lu W, Rong D, Wang X, Sun G, Jia S, Zhang H, Jia X, Guo W. Murine model of elastase-induced proximal thoracic aortic aneurysm through a midline incision in the anterior neck. Front Cardiovasc Med 2023; 10:953514. [PMID: 36815017 PMCID: PMC9939838 DOI: 10.3389/fcvm.2023.953514] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Accepted: 01/03/2023] [Indexed: 02/09/2023] Open
Abstract
Objective This study was performed to develop a murine model of elastase-induced proximal thoracic aortic aneurysms (PTAAs). Methods The ascending thoracic aorta and aortic arch of adult C57BL/6J male mice were exposed through a midline incision in the anterior neck, followed by peri-adventitial elastase or saline application. The maximal ascending thoracic aorta diameter was measured with high-resolution micro-ultrasound. Twenty-eight days after the operation, the aortas were harvested and analyzed by histopathological examination and qualitative polymerase chain reaction to determine the basic characteristics of the aneurysmal lesions. Results Fourteen days after the operation, the dilation rate (mean ± standard error) in the 10-min elastase application group (n = 10, 71.44 ± 10.45%) or 5-min application group (n = 9, 42.67 ± 3.72%) were significantly higher than that in the saline application group (n = 9, 7.37 ± 0.94%, P < 0.001 for both). Histopathological examination revealed aortic wall thickening, degradation of elastin fibers, loss of smooth muscle cells, more vasa vasorum, enhanced extracellular matrix degradation, augmented collagen synthesis, upregulated apoptosis and proliferation capacity of smooth muscle cells, and increased macrophages and CD4+ T cells infiltration in the PTAA lesions. Qualitative analyses indicated higher expression of the proinflammatory markers, matrix metalloproteinase-2 and -9 as well as Collagen III, Collagen I in the PTAAs than in the controls. Conclusion We established a novel in vivo mouse model of PTAAs through a midline incision in the anterior neck by peri-adventitial application of elastase. This model may facilitate research into the pathogenesis of PTAA formation and the treatment strategy for this devastating disease.
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Affiliation(s)
- Jianqing Deng
- Department of Vascular and Endovascular Surgery, The First Medical Center of PLA General Hospital, Beijing, China,State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China,Department of Cardiovascular Surgery, The Sixth Medical Center of PLA General Hospital, Beijing, China
| | - Dandan Li
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xuelin Zhang
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Weihang Lu
- Department of Vascular and Endovascular Surgery, The First Medical Center of PLA General Hospital, Beijing, China
| | - Dan Rong
- Department of Vascular and Endovascular Surgery, The First Medical Center of PLA General Hospital, Beijing, China
| | - Xinhao Wang
- Department of Vascular and Endovascular Surgery, The First Medical Center of PLA General Hospital, Beijing, China
| | - Guoyi Sun
- Department of Vascular and Endovascular Surgery, The First Medical Center of PLA General Hospital, Beijing, China
| | - Senhao Jia
- Department of Vascular and Endovascular Surgery, The First Medical Center of PLA General Hospital, Beijing, China
| | - Hongpeng Zhang
- Department of Vascular and Endovascular Surgery, The First Medical Center of PLA General Hospital, Beijing, China
| | - Xin Jia
- Department of Vascular and Endovascular Surgery, The First Medical Center of PLA General Hospital, Beijing, China
| | - Wei Guo
- Department of Vascular and Endovascular Surgery, The First Medical Center of PLA General Hospital, Beijing, China,*Correspondence: Wei Guo,
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Griepke S, Grupe E, Lindholt JS, Fuglsang EH, Steffensen LB, Beck HC, Larsen MD, Bang-Møller SK, Overgaard M, Rasmussen LM, Lambertsen KL, Stubbe J. Selective inhibition of soluble tumor necrosis factor signaling reduces abdominal aortic aneurysm progression. Front Cardiovasc Med 2022; 9:942342. [PMID: 36186984 PMCID: PMC9523116 DOI: 10.3389/fcvm.2022.942342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 08/08/2022] [Indexed: 11/21/2022] Open
Abstract
Background Tumor necrosis factor (TNF) is pathologically elevated in human abdominal aortic aneurysms (AAA). Non-selective TNF inhibition-based therapeutics are approved for human use but have been linked to several side effects. Compounds that target the proinflammatory soluble form of TNF (solTNF) but preserve the immunomodulatory capabilities of the transmembrane form of TNF (tmTNF) may prevent these side effects. We hypothesize that inhibition of solTNF signaling prevents AAA expansion. Methods The effect of the selective solTNF inhibitor, XPro1595, and the non-selective TNF inhibitor, Etanercept (ETN) was examined in porcine pancreatic elastase (PPE) induced AAA mice, and findings with XPro1595 was confirmed in angiotensin II (ANGII) induced AAA in hyperlipidemic apolipoprotein E (Apoe) –/– mice. Results XPro1595 treatment significantly reduced AAA expansion in both models, and a similar trend (p = 0.06) was observed in PPE-induced AAA in ETN-treated mice. In the PPE aneurysm wall, XPro1595 improved elastin integrity scores. In aneurysms, mean TNFR1 levels reduced non-significantly (p = 0.07) by 50% after TNF inhibition, but the histological location in murine AAAs was unaffected and similar to that in human AAAs. Semi-quantification of infiltrating leucocytes, macrophages, T-cells, and neutrophils in the aneurysm wall were unaffected by TNF inhibition. XPro1595 increased systemic TNF levels, while ETN increased systemic IL-10 levels. In ANGII-induced AAA mice, XPro1595 increased systemic TNF and IL-5 levels. In early AAA development, proteomic analyses revealed that XPro1595 significantly upregulated ontology terms including “platelet aggregation” and “coagulation” related to the fibrinogen complex, from which several proteins were among the top regulated proteins. Downregulated ontology terms were associated with metabolic processes. Conclusion In conclusion, selective inhibition of solTNF signaling reduced aneurysm expansion in mice, supporting its potential as an attractive treatment option for AAA patients.
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Affiliation(s)
- Silke Griepke
- Department of Cardiovascular and Renal Research, Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - Emilie Grupe
- Department of Cardiovascular and Renal Research, Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - Jes Sanddal Lindholt
- Elite Research Centre for Individualized Medicine in Arterial Diseases (CIMA), Odense University Hospital, Odense, Denmark
- Department of Cardiothoracic and Vascular Surgery, Odense University Hospital, Odense, Denmark
| | - Elizabeth Hvitfeldt Fuglsang
- Department of Cardiovascular and Renal Research, Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - Lasse Bach Steffensen
- Department of Cardiovascular and Renal Research, Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - Hans Christian Beck
- Elite Research Centre for Individualized Medicine in Arterial Diseases (CIMA), Odense University Hospital, Odense, Denmark
- Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, Odense, Denmark
| | - Mia Dupont Larsen
- Department of Cardiovascular and Renal Research, Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - Sissel Karoline Bang-Møller
- Department of Cardiovascular and Renal Research, Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - Martin Overgaard
- Elite Research Centre for Individualized Medicine in Arterial Diseases (CIMA), Odense University Hospital, Odense, Denmark
- Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, Odense, Denmark
| | - Lars Melholt Rasmussen
- Elite Research Centre for Individualized Medicine in Arterial Diseases (CIMA), Odense University Hospital, Odense, Denmark
- Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, Odense, Denmark
| | - Kate Lykke Lambertsen
- Department of Neurobiology, Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark
- Department of Neurology, Odense University Hospital, Odense, Denmark
- BRIDGE—Brain Research—Inter-Disciplinary Guided Excellence, Department of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - Jane Stubbe
- Department of Cardiovascular and Renal Research, Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark
- Elite Research Centre for Individualized Medicine in Arterial Diseases (CIMA), Odense University Hospital, Odense, Denmark
- *Correspondence: Jane Stubbe,
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Chen Y, Ouyang T, Fang C, Tang CE, Lei K, Jiang L, Luo F. Identification of biomarkers and analysis of infiltrated immune cells in stable and ruptured abdominal aortic aneurysms. Front Cardiovasc Med 2022; 9:941185. [PMID: 36158807 PMCID: PMC9492965 DOI: 10.3389/fcvm.2022.941185] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Accepted: 08/17/2022] [Indexed: 11/24/2022] Open
Abstract
Objectives The mortality rate of abdominal aortic aneurysm (AAA) is extremely high in the older population. This study aimed to identify potential biomarkers of AAA and aortic rupture and analyze infiltration of immune cells in stable and ruptured AAA samples. Methods Raw data of GSE47472, GSE57691, and GSE98278 were downloaded. After data processing, the co-expression gene networks were constructed. Gene Ontology and pathway enrichment analysis of AAA- and aortic rupture-related gene modules were conducted using the Database for Annotation, Visualization, and Integrated Discovery. Gene set enrichment analysis (GSEA) and gene set variation analysis (GSVA) were used for further enrichment analysis. The CIBERSORT tool was used to analyze the relative abundance of immune cells in samples. Differentially expressed immune-related genes were analyzed between different samples. Predictive models were constructed via extreme gradient boosting, and hub genes were identified according to feature importance. Results Blue and yellow modules were significantly related to AAA, and genes in these modules were associated with the aortic wall and immune response, respectively. In terms of aortic rupture, the most relevant module was significantly enriched in the inflammatory response. The results of GSEA and GSVA suggested that immune cells and the inflammatory response were involved in the development of AAA and aortic rupture. There were significant differences in the infiltration of immune cells and expression levels of immune-related genes among different samples. NFKB1 might be an important transcription factor mediating the inflammatory response of AAA and aortic rupture. After the construction of a predictive model, CD19, SELL, and CCR7 were selected as hub genes for AAA whereas OAS3, IFIT1, and IFI44L were identified as hub genes for aortic rupture. Conclusion Weakening of the aortic wall and the immune response both contributed to the development of AAA, and the inflammatory response was closely associated with aortic rupture. The infiltration of immune cells was significantly different between different samples. NFKB1 might be an important transcription factor in AAA and aortic rupture. CD19, SELL, and CCR7 had potential diagnostic value for AAA. OAS3, IFIT1, and IFI44L might be predictive factors for aortic rupture.
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Affiliation(s)
- Yubin Chen
- Department of Cardiac Surgery, Xiangya Hospital, Central South University, Changsha, China
| | - Tianyu Ouyang
- Department of Cardiac Surgery, Xiangya Hospital, Central South University, Changsha, China
| | - Cheng Fang
- Department of Cardiac Surgery, Xiangya Hospital, Central South University, Changsha, China
| | - Can-e Tang
- Department of Endocrinology, Xiangya Hospital, Central South University, Changsha, China
- The Institute of Medical Science Research, Xiangya Hospital, Central South University, Changsha, China
| | - Kaibo Lei
- Department of Cardiac Surgery, Xiangya Hospital, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Longtan Jiang
- Department of Cardiac Surgery, Xiangya Hospital, Central South University, Changsha, China
- *Correspondence: Longtan Jiang,
| | - Fanyan Luo
- Department of Cardiac Surgery, Xiangya Hospital, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
- Fanyan Luo,
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Davis FM, Tsoi LC, Ma F, Wasikowski R, Moore BB, Kunkel SL, Gudjonsson JE, Gallagher KA. Single-cell Transcriptomics Reveals Dynamic Role of Smooth Muscle Cells and Enrichment of Immune Cell Subsets in Human Abdominal Aortic Aneurysms. Ann Surg 2022; 276:511-521. [PMID: 35762613 PMCID: PMC9388616 DOI: 10.1097/sla.0000000000005551] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To determine cell-specific gene expression profiles that contribute to development of abdominal aortic aneurysms (AAAs). BACKGROUND AAAs represent the most common pathological aortic dilation leading to the fatal consequence of aortic rupture. Both immune and structural cells contribute to aortic degeneration, however, gene specific alterations in these cellular subsets are poorly understood. METHODS We performed single-cell RNA sequencing (scRNA-seq) analysis of AAAs and control tissues. AAA-related changes were examined by comparing gene expression profiles as well as detailed receptor-ligand interactions. An integrative analysis of scRNA-seq data with large genome-wide association study data was conducted to identify genes critical for AAA development. RESULTS Using scRNA-seq we provide the first comprehensive characterization of the cellular landscape in human AAA tissues. Unbiased clustering analysis of transcriptional profiles identified seventeen clusters representing 8 cell lineages. For immune cells, clustering analysis identified 4 T-cell and 5 monocyte/macrophage subpopulations, with distinct transcriptional profiles in AAAs compared to controls. Gene enrichment analysis on immune subsets identified multiple pathways only expressed in AAA tissue, including those involved in mitochondrial dysfunction, proliferation, and cytokine secretion. Moreover, receptor-ligand analysis defined robust interactions between vascular smooth muscle cells and myeloid populations in AAA tissues. Lastly, integrated analysis of scRNA-seq data with genome-wide association study studies determined that vascular smooth muscle cell expression of SORT1 is critical for maintaining normal aortic wall function. CONCLUSIONS Here we provide the first comprehensive evaluation of single-cell composition of the abdominal aortic wall and reveal how the gene expression landscape is altered in human AAAs.
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Affiliation(s)
- Frank M. Davis
- Section of Vascular Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI
- Department Microbiology and Immunology, University of Michigan, Ann Arbor, MI
| | - Lam C. Tsoi
- Department of Dermatology, University of Michigan, Ann Arbor, MI
- Department of Computation Medicine University of Michigan, Ann Arbor, MI
- Department of Biostatistics, University of Michigan, Ann Arbor, MI
| | - Feiyang Ma
- Department of Molecular, Cell and Developmental Biology, David Geffen School of Medicine at University of California (UCLA), Los Angeles, California
| | | | - Bethany B. Moore
- Department Microbiology and Immunology, University of Michigan, Ann Arbor, MI
- Department of Internal Medicine, University of Michigan, Ann Arbor, MI
| | | | | | - Katherine A. Gallagher
- Section of Vascular Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI
- Department Microbiology and Immunology, University of Michigan, Ann Arbor, MI
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8
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Lu S, White JV, Nwaneshiudu I, Nwaneshiudu A, Monos DS, Solomides CC, Oleszak EL, Platsoucas CD. Human abdominal aortic aneurysm (AAA): Evidence for an autoimmune antigen-driven disease. Clin Exp Rheumatol 2022; 21:103164. [PMID: 35926768 DOI: 10.1016/j.autrev.2022.103164] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Accepted: 07/29/2022] [Indexed: 11/02/2022]
Abstract
Abdominal aortic aneurism (AAA) is a complex immunological disease with a strong genetic component, and one of the ten leading causes of death of individuals 55-74 years old worldwide. Strong evidence has been accumulated suggesting that AAA is an autoimmune specific antigen-driven disease. Mononuclear cells infiltrating AAA lesions comprised of T and B lymphocytes and other cells expressing early-, intermediate- and late-activation antigens, and the presence of antigen-presenting cells have been documented, demonstrating an ongoing immune response. The three components of the trimolecular complex, T-cell receptor (TCR)/peptide (antigen)/HLA have been identified in AAA, and specifically: (i) clonal expansions of T-cell clones in AAA lesions; (ii) the association of AAA with particular HLA Class I and Class II; and (iii) self or nonself putative AAA-associated antigens. IgG autoantibodies recognizing proteins present in normal aortic tissue have been reported in patients with AAA. Molecular mimicry, defined as the sharing of antigenic epitopes between microorganisms (bacteria, viruses) and self antigens, maybe is responsible for T-cell responses and antibody production in AAA. Also, the frequency and the suppressor activity of CD4 + CD25 + FOXP3+ Tregs and the expression of FOXP3 transcripts and protein have been reported to be significantly impaired in AAA patients vs normal donors.
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Affiliation(s)
- Song Lu
- Mon Health Medical Center, Department of Pathology, Morgantown, WV, USA
| | - John V White
- Department of Surgery, Advocate Lutheran General Hospital & University of Illinois School of Medicine, Park Ridge, IL, USA
| | - Ifeyinwa Nwaneshiudu
- Department of Microbiology and Immunology, Temple University School of Medicine, Philadelphia, PA, USA
| | - Adaobi Nwaneshiudu
- Department of Microbiology and Immunology, Temple University School of Medicine, Philadelphia, PA, USA; Cutis Wellness Dermatology and Dermatopathology PLLC, Laredo, TX, USA
| | - Dimitri S Monos
- Department of Pathology and Laboratory Medicine, University of Pennsylvania, Perelman School of Medicine, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Charalambos C Solomides
- Department of Pathology & Laboratory Medicine, Thomas Jefferson University Hospital, Philadelphia, PA, USA
| | - Emilia L Oleszak
- Department of Biological Sciences and Center for Molecular Medicine, Old Dominion University, Norfolk, VA, USA
| | - Chris D Platsoucas
- Department of Biological Sciences and Center for Molecular Medicine, Old Dominion University, Norfolk, VA, USA.
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9
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Zhou H, Wang L, Liu S, Wang W. The role of phosphoinositide 3-kinases in immune-inflammatory responses: potential therapeutic targets for abdominal aortic aneurysm. Cell Cycle 2022; 21:2339-2364. [PMID: 35792922 DOI: 10.1080/15384101.2022.2094577] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
The pathogenesis of abdominal aortic aneurysm (AAA) includes inflammatory responses, matrix metalloproteinases (MMPs) degradation, VSMC apoptosis, oxidative stress, and angiogenesis, among which the inflammatory response plays a key role. At present, surgery is the only curing treatment, and no effective drug can delay AAA progression in clinical practice. Therefore, searching for a signaling pathway related to the immune-inflammatory response is an essential direction for developing drugs targeting AAA. Recent studies have confirmed that the PI3K family plays an important role in many inflammatory diseases and is involved in regulating various cellular functions, especially in the immune-inflammatory response. This review focuses on the role of each isoform of PI3K in each stage of AAA immune-inflammatory response, making available explorations for a deeper understanding of the mechanism of inflammation and immune response during the formation and development of AAA.
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Affiliation(s)
- Haiyang Zhou
- Department of General &vascular Surgery, Xiangya Hospital, Central South University, Changsha, China
| | - Lei Wang
- Department of General &vascular Surgery, Xiangya Hospital, Central South University, Changsha, China
| | - Shuai Liu
- Department of General &vascular Surgery, Xiangya Hospital, Central South University, Changsha, China
| | - Wei Wang
- Department of General &vascular Surgery, Xiangya Hospital, Central South University, Changsha, China
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10
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Skotsimara G, Antonopoulos A, Oikonomou E, Papastamos C, Siasos G, Tousoulis D. Aortic Wall Inflammation in the Pathogenesis, Diagnosis and Treatment of Aortic Aneurysms. Inflammation 2022; 45:965-976. [DOI: 10.1007/s10753-022-01626-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 01/08/2022] [Accepted: 01/12/2022] [Indexed: 12/18/2022]
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11
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Li B, Song X, Guo W, Hou Y, Hu H, Ge W, Fan T, Han Z, Li Z, Yang P, Gao R, Zhao H, Wang J. Single-Cell Transcriptome Profiles Reveal Fibrocytes as Potential Targets of Cell Therapies for Abdominal Aortic Aneurysm. Front Cardiovasc Med 2021; 8:753711. [PMID: 34901214 PMCID: PMC8652037 DOI: 10.3389/fcvm.2021.753711] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 10/22/2021] [Indexed: 11/13/2022] Open
Abstract
Abdominal aortic aneurysm (AAA) is potentially life-threatening in aging population due to the risk of aortic rupture and a lack of optimal treatment. The roles of different vascular and immune cells in AAA formation and pathogenesis remain to be future characterized. Single-cell RNA sequencing was performed on an angiotensin (Ang) II-induced mouse model of AAA. Macrophages, B cells, T cells, fibroblasts, smooth muscle cells and endothelial cells were identified through bioinformatic analyses. The discovery of multiple subtypes of macrophages, such as the re-polarization of Trem2+Acp5+ osteoclast-like and M2-like macrophages toward the M1 type macrophages, indicates the heterogenous nature of macrophages during AAA development. More interestingly, we defined CD45+COL1+ fibrocytes, which was further validated by flow cytometry and immunostaining in mouse and human AAA tissues. We then reconstituted these fibrocytes into mice with Ang II-induced AAA and found the recruitment of these fibrocytes in mouse AAA. More importantly, the fibrocyte treatment exhibited a protective effect against AAA development, perhaps through modulating extracellular matrix production and thus enhancing aortic stability. Our study reveals the heterogeneity of macrophages and the involvement of a novel cell type, fibrocyte, in AAA. Fibrocyte may represent a potential cell therapy target for AAA.
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Affiliation(s)
- Bolun Li
- State Key Laboratory of Medical Molecular Biology, Department of Pathophysiology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Xiaomin Song
- State Key Laboratory of Medical Molecular Biology, Department of Pathophysiology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Wenjun Guo
- State Key Laboratory of Medical Molecular Biology, Department of Pathophysiology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Yangfeng Hou
- State Key Laboratory of Medical Molecular Biology, Department of Pathophysiology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Huiyuan Hu
- State Key Laboratory of Medical Molecular Biology, Department of Pathophysiology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China.,First Clinical College, Xi'an Jiaotong University, ShaanXi, China
| | - Weipeng Ge
- State Key Laboratory of Medical Molecular Biology, Department of Pathophysiology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Tianfei Fan
- State Key Laboratory of Medical Molecular Biology, Department of Pathophysiology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Zhifa Han
- State Key Laboratory of Medical Molecular Biology, Department of Pathophysiology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China.,Department of Basic Medical Sciences, School of Medicine, Tsinghua University, Beijing, China
| | - Zhiwei Li
- State Key Laboratory of Medical Molecular Biology, Department of Pathophysiology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Peiran Yang
- State Key Laboratory of Medical Molecular Biology, Department of Physiology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Ran Gao
- State Key Laboratory of Medical Molecular Biology, Department of Pathophysiology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Hongmei Zhao
- State Key Laboratory of Medical Molecular Biology, Department of Pathophysiology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Jing Wang
- State Key Laboratory of Medical Molecular Biology, Department of Pathophysiology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
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12
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Zhao G, Lu H, Chang Z, Zhao Y, Zhu T, Chang L, Guo Y, Garcia-Barrio MT, Chen YE, Zhang J. Single-cell RNA sequencing reveals the cellular heterogeneity of aneurysmal infrarenal abdominal aorta. Cardiovasc Res 2021; 117:1402-1416. [PMID: 32678909 PMCID: PMC8064434 DOI: 10.1093/cvr/cvaa214] [Citation(s) in RCA: 92] [Impact Index Per Article: 30.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 06/21/2020] [Accepted: 07/10/2020] [Indexed: 12/28/2022] Open
Abstract
AIMS The artery contains numerous cell types which contribute to multiple vascular diseases. However, the heterogeneity and cellular responses of these vascular cells during abdominal aortic aneurysm (AAA) progression have not been well characterized. METHODS AND RESULTS Single-cell RNA sequencing was performed on the infrarenal abdominal aortas (IAAs) from C57BL/6J mice at Days 7 and 14 post-sham or peri-adventitial elastase-induced AAA. Unbiased clustering analysis of the transcriptional profiles from >4500 aortic cells identified 17 clusters representing nine-cell lineages, encompassing vascular smooth muscle cells (VSMCs), fibroblasts, endothelial cells, immune cells (macrophages, T cells, B cells, and dendritic cells), and two types of rare cells, including neural cells and erythrocyte cells. Seurat clustering analysis identified four smooth muscle cell (SMC) subpopulations and five monocyte/macrophage subpopulations, with distinct transcriptional profiles. During AAA progression, three major SMC subpopulations were proportionally decreased, whereas the small subpopulation was increased, accompanied with down-regulation of SMC contractile markers and up-regulation of pro-inflammatory genes. Another AAA-associated cellular response is immune cell expansion, particularly monocytes/macrophages. Elastase exposure induced significant expansion and activation of aortic resident macrophages, blood-derived monocytes and inflammatory macrophages. We also identified increased blood-derived reparative macrophages expressing anti-inflammatory cytokines suggesting that resolution of inflammation and vascular repair also persist during AAA progression. CONCLUSION Our data identify AAA disease-relevant transcriptional signatures of vascular cells in the IAA. Furthermore, we characterize the heterogeneity and cellular responses of VSMCs and monocytes/macrophages during AAA progression, which provide insights into their function and the regulation of AAA onset and progression.
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MESH Headings
- Animals
- Aorta, Abdominal/metabolism
- Aorta, Abdominal/pathology
- Aortic Aneurysm, Abdominal/chemically induced
- Aortic Aneurysm, Abdominal/genetics
- Aortic Aneurysm, Abdominal/metabolism
- Aortic Aneurysm, Abdominal/pathology
- Cell Lineage
- Cluster Analysis
- Disease Models, Animal
- Gene Expression Profiling
- Macrophages/metabolism
- Macrophages/pathology
- Mice, Inbred C57BL
- Monocytes/metabolism
- Monocytes/pathology
- Muscle, Smooth, Vascular/metabolism
- Muscle, Smooth, Vascular/pathology
- Myocytes, Smooth Muscle/metabolism
- Myocytes, Smooth Muscle/pathology
- Pancreatic Elastase
- Phenotype
- RNA-Seq
- Single-Cell Analysis
- Transcriptome
- Mice
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Affiliation(s)
- Guizhen Zhao
- Frankel Cardiovascular Center, Department of Internal Medicine, University of Michigan Medical Center, NCRC Bldg26, Room 357S. 2800 Plymouth Rd, Ann Arbor, MI 48109, USA
| | - Haocheng Lu
- Frankel Cardiovascular Center, Department of Internal Medicine, University of Michigan Medical Center, NCRC Bldg26, Room 357S. 2800 Plymouth Rd, Ann Arbor, MI 48109, USA
| | - Ziyi Chang
- Frankel Cardiovascular Center, Department of Internal Medicine, University of Michigan Medical Center, NCRC Bldg26, Room 357S. 2800 Plymouth Rd, Ann Arbor, MI 48109, USA
- Department of Metabolism and Endocrinology, The Second Xiangya Hospital, Central South University, Changsha 410011, PR China
| | - Yang Zhao
- Frankel Cardiovascular Center, Department of Internal Medicine, University of Michigan Medical Center, NCRC Bldg26, Room 357S. 2800 Plymouth Rd, Ann Arbor, MI 48109, USA
| | - Tianqing Zhu
- Frankel Cardiovascular Center, Department of Internal Medicine, University of Michigan Medical Center, NCRC Bldg26, Room 357S. 2800 Plymouth Rd, Ann Arbor, MI 48109, USA
| | - Lin Chang
- Frankel Cardiovascular Center, Department of Internal Medicine, University of Michigan Medical Center, NCRC Bldg26, Room 357S. 2800 Plymouth Rd, Ann Arbor, MI 48109, USA
| | - Yanhong Guo
- Frankel Cardiovascular Center, Department of Internal Medicine, University of Michigan Medical Center, NCRC Bldg26, Room 357S. 2800 Plymouth Rd, Ann Arbor, MI 48109, USA
| | - Minerva T Garcia-Barrio
- Frankel Cardiovascular Center, Department of Internal Medicine, University of Michigan Medical Center, NCRC Bldg26, Room 357S. 2800 Plymouth Rd, Ann Arbor, MI 48109, USA
| | - Y Eugene Chen
- Frankel Cardiovascular Center, Department of Internal Medicine, University of Michigan Medical Center, NCRC Bldg26, Room 357S. 2800 Plymouth Rd, Ann Arbor, MI 48109, USA
| | - Jifeng Zhang
- Frankel Cardiovascular Center, Department of Internal Medicine, University of Michigan Medical Center, NCRC Bldg26, Room 357S. 2800 Plymouth Rd, Ann Arbor, MI 48109, USA
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13
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Meekel JP, Dias-Neto M, Bogunovic N, Conceição G, Sousa-Mendes C, Stoll GR, Leite-Moreira A, Huynh J, Micha D, Eringa EC, Balm R, Blankensteijn JD, Yeung KK. Inflammatory Gene Expression of Human Perivascular Adipose Tissue in Abdominal Aortic Aneurysms. Eur J Vasc Endovasc Surg 2021; 61:1008-1016. [PMID: 33858751 DOI: 10.1016/j.ejvs.2021.02.034] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Revised: 02/15/2021] [Accepted: 02/20/2021] [Indexed: 01/08/2023]
Abstract
OBJECTIVE Perivascular adipose tissue (PVAT) contributes to vascular homeostasis and is increasingly linked to vascular pathology. PVAT density and volume were associated with abdominal aortic aneurysm (AAA) presence and dimensions on imaging. However, mechanisms underlying the role of PVAT in AAA have not been clarified. This study aimed to explore differences in PVAT from AAA using gene expression and functional tests. METHODS Human aortic PVAT and control subcutaneous adipose tissue were collected during open AAA surgery. Gene analyses and functional tests were performed. The control group consisted of healthy aorta from non-living renal transplant donors. Gene expression tests were performed to study genes potentially involved in various inflammatory processes and AAA related genes. Live PVAT and subcutaneous adipose tissue (SAT) from AAA were used for ex vivo co-culture with smooth muscle cells (SMCs) retrieved from non-pathological aortas. RESULTS Adipose tissue was harvested from 27 AAA patients (n [gene expression] = 22, n [functional tests] = 5) and five control patients. An increased inflammatory gene expression of PTPRC (p = .008), CXCL8 (p = .033), LCK (p = .003), CCL5 (p = .004) and an increase in extracellular matrix breakdown marker MMP9 (p = .016) were found in AAA compared with controls. Also, there was a decreased anti-inflammatory gene expression of PPARG in AAA compared with controls (p = .040). SMC co-cultures from non-pathological aortas with PVAT from AAA showed increased MMP9 (p = .033) and SMTN (p = .008) expression and SAT increased SMTN expression in these SMC. CONCLUSION The data revealed that PVAT from AAA shows an increased pro-inflammatory and matrix metallopeptidase gene expression and decreased anti-inflammatory gene expression. Furthermore, increased expression of genes involved in aneurysm formation was found in healthy SMC co-culture with PVAT of AAA patients. Therefore, PVAT from AAA might contribute to inflammation of the adjacent aortic wall and thereby plays a possible role in AAA pathophysiology. These proposed pathways of inflammatory induction could reveal new therapeutic targets in AAA treatment.
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Affiliation(s)
- Jorn P Meekel
- Department of Vascular Surgery, Amsterdam University Medical Centres, location VUmc, Amsterdam, the Netherlands; Department of Physiology, Amsterdam University Medical Centres, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands; Department of Surgery, Zaans Medisch Centrum, Zaandam, the Netherlands
| | - Marina Dias-Neto
- Department of Angiology and Vascular Surgery, São João University Hospital Centre, Porto, Portugal; Department of Surgery and Physiology, Cardiovascular Research Unit, Faculty of Medicine, University of Porto, Portugal
| | - Natalija Bogunovic
- Department of Vascular Surgery, Amsterdam University Medical Centres, location VUmc, Amsterdam, the Netherlands; Department of Physiology, Amsterdam University Medical Centres, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - Gloria Conceição
- Department of Surgery and Physiology, Cardiovascular Research Unit, Faculty of Medicine, University of Porto, Portugal
| | - Claudia Sousa-Mendes
- Department of Surgery and Physiology, Cardiovascular Research Unit, Faculty of Medicine, University of Porto, Portugal
| | - Gawin R Stoll
- Department of Physiology, Amsterdam University Medical Centres, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - Adelino Leite-Moreira
- Department of Surgery and Physiology, Cardiovascular Research Unit, Faculty of Medicine, University of Porto, Portugal
| | - Jennifer Huynh
- Department of Vascular Surgery, Amsterdam University Medical Centres, location VUmc, Amsterdam, the Netherlands; Department of Physiology, Amsterdam University Medical Centres, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - Dimitra Micha
- Department of Clinical Genetics, Amsterdam University Medical Centres, location VUmc, Amsterdam, the Netherlands
| | - Etto C Eringa
- Department of Physiology, Amsterdam University Medical Centres, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - Ron Balm
- Department of Vascular Surgery, Amsterdam University Medical Centres, location AMC, Amsterdam, the Netherlands
| | - Jan D Blankensteijn
- Department of Vascular Surgery, Amsterdam University Medical Centres, location VUmc, Amsterdam, the Netherlands
| | - Kak K Yeung
- Department of Vascular Surgery, Amsterdam University Medical Centres, location VUmc, Amsterdam, the Netherlands; Department of Physiology, Amsterdam University Medical Centres, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands; Department of Vascular Surgery, Amsterdam University Medical Centres, location AMC, Amsterdam, the Netherlands.
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14
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Ye T, Zhang G, Liu H, Shi J, Qiu H, Liu Y, Han F, Hou N. Relationships Between Perivascular Adipose Tissue and Abdominal Aortic Aneurysms. Front Endocrinol (Lausanne) 2021; 12:704845. [PMID: 34194399 PMCID: PMC8236981 DOI: 10.3389/fendo.2021.704845] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Accepted: 05/25/2021] [Indexed: 02/05/2023] Open
Abstract
Abdominal aortic aneurysms (AAAs) are typically asymptomatic, and there is a high mortality rate associated with aneurysm rupture. AAA pathogenesis involves extracellular matrix degradation, vascular smooth muscle cell phenotype switching, inflammation, and oxidative stress. There is increasing evidence of excessive adipocyte accumulation in ruptured AAA walls. These excessive numbers of adipocytes in the vascular wall have been closely linked with AAA progression. Perivascular adipose tissue (PVAT), a unique type of adipose tissue, can be involved in adipocyte accumulation in the AAA wall. PVAT produces various chemokines and adipocytokines around vessels to maintain vascular homeostasis through paracrine and autocrine mechanisms in normal physiological conditions. Nevertheless, PVAT loses its normal function and promotes the progression of vascular diseases in pathological conditions. There is evidence of significantly reduced AAA diameter in vessel walls of removed PVAT. There is a need to highlight the critical roles of cytokines, cells, and microRNA derived from PVAT in the regulation of AAA development. PVAT may constitute an important therapeutic target for the prevention and treatment of AAAs. In this review, we discuss the relationship between PVAT and AAA development; we also highlight the potential for PVAT-derived factors to serve as a therapeutic target in the treatment of AAAs.
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Affiliation(s)
- Tongtong Ye
- Department of Endocrinology, Affiliated Hospital of Weifang Medical University, Weifang, China
- Clinical Research Center, Affiliated Hospital of Weifang Medical University, Weifang, China
| | - Guangdong Zhang
- Department of Endocrinology, Affiliated Hospital of Weifang Medical University, Weifang, China
| | - Hangyu Liu
- Department of Ophthalmology, Weifang Eye Hospital, Weifang, China
| | - Junfeng Shi
- Department of Endocrinology, Affiliated Hospital of Weifang Medical University, Weifang, China
- Clinical Research Center, Affiliated Hospital of Weifang Medical University, Weifang, China
| | - Hongyan Qiu
- Department of Endocrinology, Affiliated Hospital of Weifang Medical University, Weifang, China
- Clinical Research Center, Affiliated Hospital of Weifang Medical University, Weifang, China
| | - Yongping Liu
- Department of Endocrinology, Affiliated Hospital of Weifang Medical University, Weifang, China
- Clinical Research Center, Affiliated Hospital of Weifang Medical University, Weifang, China
| | - Fang Han
- Department of Pathology, Affiliated Hospital of Weifang Medical University, Weifang, China
- *Correspondence: Ningning Hou, ; Fang Han,
| | - Ningning Hou
- Department of Endocrinology, Affiliated Hospital of Weifang Medical University, Weifang, China
- *Correspondence: Ningning Hou, ; Fang Han,
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15
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Chumachenko PV, Postnov AY, Ivanova AG, Afanasieva OI, Afanasiev MA, Ekta MB, Sukhorukov VN, Kheimets GI, Sobenin IA. Thoracic Aortic Aneurysm and Factors Affecting Aortic Dissection. J Pers Med 2020; 10:jpm10040153. [PMID: 33023269 PMCID: PMC7711713 DOI: 10.3390/jpm10040153] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 09/24/2020] [Accepted: 09/25/2020] [Indexed: 01/18/2023] Open
Abstract
This study is aimed at investigating the relationship between inflammation, the number of vasa vasorum, and the presence of lipoprotein (a) [Lp(a)] in the aortic aneurysm wall, as well as the relationships of these pathological processes with the development of aneurysm wall dissection. To that end, we examined segments of aortic aneurysm wall, consisting of intima, media, and adventitia, collected from patients during aneurysm prosthetics intervention. The material was collected from 23 men and eight women aged from 33 to 69 years. Monoclonal antibodies to Lp(a), markers of monocytes and macrophages (CD68), T cells (CD3, CD4, and CD8), von Willebrand factor, endothelium NO synthase, and smooth muscle α-actin were used for morphological and morphometric investigation. The present study demonstrated that Lp(a) is not often found in biopsies of patients with thoracic aortic aneurysm. Morphological and morphometric investigation shows the connection of aortic dissection with the process of damage to its wall caused by inflammatory infiltrates, medianecroses, and the appearance of newly formed vasa vasorum in media.
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Affiliation(s)
- Petr V. Chumachenko
- Laboratory of Medical Genetics, National Medical Research Center of Cardiology, Institute of Experimental Cardiology, 15-a 3-rd Cherepkovskaya Str., 121552 Moscow, Russia; (P.V.C.); (O.I.A.); (M.A.A.); (G.I.K.); (I.A.S.)
| | - Anton Yu. Postnov
- Laboratory of Medical Genetics, National Medical Research Center of Cardiology, Institute of Experimental Cardiology, 15-a 3-rd Cherepkovskaya Str., 121552 Moscow, Russia; (P.V.C.); (O.I.A.); (M.A.A.); (G.I.K.); (I.A.S.)
- Research Institute of Human Morphology, Laboratory of Cellular and Molecular Pathology of Cardiovascular System, 3 Tsyurupy Str., 117418 Moscow, Russia; (M.B.E.); (V.N.S.)
- Correspondence: ; Tel.: +7(916)6904154; Fax: +7(499)120-80-65
| | - Alexandra G. Ivanova
- Russian Research Center of Surgery, Lane Abrikosovsky, 2, 119991 Moscow, Russia;
| | - Olga I. Afanasieva
- Laboratory of Medical Genetics, National Medical Research Center of Cardiology, Institute of Experimental Cardiology, 15-a 3-rd Cherepkovskaya Str., 121552 Moscow, Russia; (P.V.C.); (O.I.A.); (M.A.A.); (G.I.K.); (I.A.S.)
| | - Maksim A. Afanasiev
- Laboratory of Medical Genetics, National Medical Research Center of Cardiology, Institute of Experimental Cardiology, 15-a 3-rd Cherepkovskaya Str., 121552 Moscow, Russia; (P.V.C.); (O.I.A.); (M.A.A.); (G.I.K.); (I.A.S.)
| | - Mariam Bagheri Ekta
- Research Institute of Human Morphology, Laboratory of Cellular and Molecular Pathology of Cardiovascular System, 3 Tsyurupy Str., 117418 Moscow, Russia; (M.B.E.); (V.N.S.)
| | - Vasily N. Sukhorukov
- Research Institute of Human Morphology, Laboratory of Cellular and Molecular Pathology of Cardiovascular System, 3 Tsyurupy Str., 117418 Moscow, Russia; (M.B.E.); (V.N.S.)
| | - Grigoriy I. Kheimets
- Laboratory of Medical Genetics, National Medical Research Center of Cardiology, Institute of Experimental Cardiology, 15-a 3-rd Cherepkovskaya Str., 121552 Moscow, Russia; (P.V.C.); (O.I.A.); (M.A.A.); (G.I.K.); (I.A.S.)
| | - Igor A. Sobenin
- Laboratory of Medical Genetics, National Medical Research Center of Cardiology, Institute of Experimental Cardiology, 15-a 3-rd Cherepkovskaya Str., 121552 Moscow, Russia; (P.V.C.); (O.I.A.); (M.A.A.); (G.I.K.); (I.A.S.)
- Research Institute of Human Morphology, Laboratory of Cellular and Molecular Pathology of Cardiovascular System, 3 Tsyurupy Str., 117418 Moscow, Russia; (M.B.E.); (V.N.S.)
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16
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Knappich C, Spin JM, Eckstein HH, Tsao PS, Maegdefessel L. Involvement of Myeloid Cells and Noncoding RNA in Abdominal Aortic Aneurysm Disease. Antioxid Redox Signal 2020; 33:602-620. [PMID: 31989839 PMCID: PMC7455479 DOI: 10.1089/ars.2020.8035] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Significance: Abdominal aortic aneurysm (AAA) is a potentially fatal condition, featuring the possibility of high-mortality rupture. To date, prophylactic surgery by means of open surgical repair or endovascular aortic repair at specific thresholds is considered standard therapy. Both surgical options hold different risk profiles of short- and long-term morbidity and mortality. Targeting early stages of AAA development to decelerate disease progression is desirable. Recent Advances: Understanding the pathomechanisms that initiate formation, maintain growth, and promote rupture of AAA is crucial to developing new medical therapeutic options. Inflammatory cells, in particular macrophages, have been investigated for their contribution to AAA disease for decades, whereas evidence on lymphocytes, mast cells, and neutrophils is sparse. Recently, there has been increasing interest in noncoding RNAs (ncRNAs) and their involvement in disease development, including AAA. Critical Issues: The current evidence on myeloid cells and ncRNAs in AAA largely originates from small animal models, making clinical extrapolation difficult. Although it is feasible to collect surgical human AAA samples, these tissues reflect end-stage disease, preventing examination of critical mechanisms behind early AAA formation. Future Directions: Gaining more insight into how myeloid cells and ncRNAs contribute to AAA disease, particularly in early stages, might suggest nonsurgical AAA treatment options. The utilization of large animal models might be helpful in this context to help bridge translational results to humans.
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Affiliation(s)
- Christoph Knappich
- Department for Vascular and Endovascular Surgery, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Joshua M Spin
- Division of Cardiovascular Medicine, Stanford University School of Medicine, Stanford, California, USA
| | - Hans-Henning Eckstein
- Department for Vascular and Endovascular Surgery, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Philip S Tsao
- Division of Cardiovascular Medicine, Stanford University School of Medicine, Stanford, California, USA
| | - Lars Maegdefessel
- Department for Vascular and Endovascular Surgery, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany.,Department of Medicine, Karolinska Institute, Stockholm, Sweden
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17
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Talepoor AG, Fouladseresht H, Khosropanah S, Doroudchi M. Immune-Inflammation in Atherosclerosis: A New Twist in an Old Tale. Endocr Metab Immune Disord Drug Targets 2020; 20:525-545. [DOI: 10.2174/1871530319666191016095725] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 08/26/2019] [Accepted: 09/23/2019] [Indexed: 12/27/2022]
Abstract
Background and Objective:Atherosclerosis, a chronic and progressive inflammatory disease, is triggered by the activation of endothelial cells followed by infiltration of innate and adaptive immune cells including monocytes and T cells in arterial walls. Major populations of T cells found in human atherosclerotic lesions are antigen-specific activated CD4+ effectors and/or memory T cells from Th1, Th17, Th2 and Treg subsets. In this review, we will discuss the significance of T cell orchestrated immune inflammation in the development and progression of atherosclerosis.Discussion:Pathogen/oxidative stress/lipid induced primary endothelial wound cannot develop to a full-blown atherosclerotic lesion in the absence of chronically induced inflammation. While the primary inflammatory response might be viewed as a lone innate response, the persistence of such a profound response over time must be (and is) associated with diverse local and systemic T cell responses. The interplay between T cells and innate cells contributes to a phenomenon called immuneinflammation and has an impact on the progression and outcome of the lesion. In recent years immuneinflammation, an old term, has had a comeback in connecting the puzzle pieces of chronic inflammatory diseases.Conclusion:Taking one-step back and looking from afar at the players of immune-inflammation may help us provide a broader perspective of these complicated interactions. This may lead to the identification of new drug targets and the development of new therapies as well as preventative measures.
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Affiliation(s)
- Atefe Ghamar Talepoor
- Department of Immunology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Hamed Fouladseresht
- Department of Immunology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Shahdad Khosropanah
- Department of Cardiology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mehrnoosh Doroudchi
- Department of Immunology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
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18
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Liu B, Granville DJ, Golledge J, Kassiri Z. Pathogenic mechanisms and the potential of drug therapies for aortic aneurysm. Am J Physiol Heart Circ Physiol 2020; 318:H652-H670. [PMID: 32083977 DOI: 10.1152/ajpheart.00621.2019] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Aortic aneurysm is a permanent focal dilation of the aorta. It is usually an asymptomatic disease but can lead to sudden death due to aortic rupture. Aortic aneurysm-related mortalities are estimated at ∼200,000 deaths per year worldwide. Because no pharmacological treatment has been found to be effective so far, surgical repair remains the only treatment for aortic aneurysm. Aortic aneurysm results from changes in the aortic wall structure due to loss of smooth muscle cells and degradation of the extracellular matrix and can form in different regions of the aorta. Research over the past decade has identified novel contributors to aneurysm formation and progression. The present review provides an overview of cellular and noncellular factors as well as enzymes that process extracellular matrix and regulate cellular functions (e.g., matrix metalloproteinases, granzymes, and cathepsins) in the context of aneurysm pathogenesis. An update of clinical trials focusing on therapeutic strategies to slow abdominal aortic aneurysm growth and efforts underway to develop effective pharmacological treatments is also provided.
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Affiliation(s)
- Bo Liu
- University of Wisconsin, Madison, Department of Surgery, Madison Wisconsin
| | - David J Granville
- International Collaboration on Repair Discoveries Centre and University of British Columbia Centre for Heart Lung Innovation, Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Jonathan Golledge
- The Queensland Research Centre for Peripheral Vascular Disease, College of Medicine and Dentistry, James Cook University, Department of Vascular and Endovascular Surgery, Townsville Hospital and Health Services, Townsville, Queensland, Australia
| | - Zamaneh Kassiri
- University of Alberta, Department of Physiology, Cardiovascular Research Center, Faculty of Medicine and Dentistry, Edmonton, Alberta, Canada
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19
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Mangum KD, Farber MA. Genetic and epigenetic regulation of abdominal aortic aneurysms. Clin Genet 2020; 97:815-826. [PMID: 31957007 DOI: 10.1111/cge.13705] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 12/22/2019] [Accepted: 01/11/2020] [Indexed: 12/11/2022]
Abstract
Abdominal aortic aneurysms (AAAs) are focal dilations of the aorta that develop from degenerative changes in the media and adventitia of the vessel. Ruptured AAAs have a mortality of up to 85%, thus it is important to identify patients with AAA at increased risk for rupture who would benefit from increased surveillance and/or surgical repair. Although the exact genetic and epigenetic mechanisms regulating AAA formation are not completely understood, Mendelian cases of AAA, which result from pathologic variants in a single gene, have helped provide a basic understanding of AAA pathophysiology. More recently, genome wide associated studies (GWAS) have identified additional variants, termed single nucleotide polymorphisms, in humans that may be associated with AAAs. While some variants may be associated with AAAs and play causal roles in aneurysm pathogenesis, it should be emphasized that the majority of SNPs do not actually cause disease. In addition to GWAS, other studies have uncovered epigenetic causes of disease that regulate expression of genes known to be important in AAA pathogenesis. This review describes many of these genetic and epigenetic contributors of AAAs, which altogether provide a deeper insight into AAA pathogenesis.
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Affiliation(s)
- Kevin D Mangum
- Section of Vascular Surgery, Department of Surgery, University of Michigan, Ann Arbor, Michigan
| | - Mark A Farber
- Division of Vascular Surgery, UNC Department of Surgery, Chapel Hill, North Carolina
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20
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IgG Anti-High Density Lipoprotein Antibodies Are Elevated in Abdominal Aortic Aneurysm and Associated with Lipid Profile and Clinical Features. J Clin Med 2019; 9:jcm9010067. [PMID: 31888089 PMCID: PMC7019833 DOI: 10.3390/jcm9010067] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 12/21/2019] [Accepted: 12/24/2019] [Indexed: 02/06/2023] Open
Abstract
High-density lipoproteins cholesterol (HDLc) levels are decreased in abdominal aortic aneurysm (AAA), which is hallmarked by autoimmunity and lipid aortic deposits. To investigate whether IgG anti-HDL antibodies were present in AAA and their potential association with clinical features, IgG anti-HDL and total IgG along with HDLc plasma levels were measured in 488 AAA patients and 184 controls from the Viborg Vascular (VIVA) study, and in tissue-conditioned media from AAA intraluminal thrombus and media layer samples compared to control aortas. Higher IgG anti-HDL levels were found in AAA compared to controls, even after correcting for total IgG, and after adjusting for potential confounders. IgG anti-HDL levels were correlated with aortic diameter in univariate and adjusted multivariate analyses. IgG anti-HDL antibodies were negatively associated with HDLc levels before and after correcting for potential confounders. Increased anti-HDL antibodies were identified in tissue-conditioned media from AAA samples compared to healthy aortas, with higher levels being observed in the media layer. In conclusion, increased IgG anti-HDL levels (both in plasma and in tissue) are linked to AAA, associated with aortic diameter and HDLc levels. These data suggest a potential immune response against HDL in AAA and support an emerging role of anti-HDL antibodies in AAA.
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21
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Chumachenko PV, Afanasyev MA, Ivanova AG, Drobkova IP, Kheimets GI, Postnov AY. [Inflammatory infiltrates, vasa vasorum, and endothelial NO synthase in the wall of thoracic aortic aneurysm]. Arkh Patol 2019; 81:45-52. [PMID: 31626204 DOI: 10.17116/patol20198105145] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
OBJECTIVE To elucidate whether there is a relationship between inflammation of the wall of aortic aneurysm and the number of vasa vasorum in it. MATERIAL AND METHODS The investigation material was aortic aneurysm wall segments obtained during surgery. Among the patients, there were 20 men and 5 women. The patients' age ranged from 33 to 69 years. The investigation used monoclonal antibodies to macrophages (CD68), T cells (CD3, CD4, and CD8) and antibodies to von Willebrand factor, endothelial NO synthase, and alpha smooth muscle actin. A morphometric study was conducted. RESULTS Calculation of the number of vasa vasorum (including newly formed vessels) in the adventitia of aortic aneurysm revealed that there was a statistically significant difference between the number of vasa vasorum in patients with an active inflammatory response (Group 1) versus Group 2 patients with a moderate inflammatory process in the aneurysm wall (p≤0.05) and a statistically significant difference between Groups 1 and 3 (without inflammatory infiltrates) (p≤0.05). Endothelial vasa vasorum heterogeneity was found in case of an immune response to NO synthase. At the same time individual vasa vasorium did not contain NO synthase, this enzyme was identified in the endothelium in a number of nearby vessels. CONCLUSION The increase in the number of vasa vasorum in the aneurysm wall in patients with abundant inflammatory infiltrates is due to the fact that some of the inflammatory cytokines of T-cells and macrophages also contribute to angiogenesis.
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Affiliation(s)
- P V Chumachenko
- National Medical Research Center of Cardiology, Ministry of Health of Russia, Moscow, Russia
| | - M A Afanasyev
- National Medical Research Center of Cardiology, Ministry of Health of Russia, Moscow, Russia
| | - A G Ivanova
- Acad. B.V. Petrovsky Russian Research Center of Surgery, Moscow, Russia
| | - I P Drobkova
- National Medical Research Center of Cardiology, Ministry of Health of Russia, Moscow, Russia
| | - G I Kheimets
- National Medical Research Center of Cardiology, Ministry of Health of Russia, Moscow, Russia
| | - A Yu Postnov
- National Medical Research Center of Cardiology, Ministry of Health of Russia, Moscow, Russia; Research Institute of Human Morphology, Ministry of Science and Higher Education of Russia, Moscow, Russia
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22
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Abstract
Aortic aneurysms are a common vascular disease in Western populations that can involve virtually any portion of the aorta. Abdominal aortic aneurysms are much more common than thoracic aortic aneurysms and combined they account for >25 000 deaths in the United States annually. Although thoracic and abdominal aortic aneurysms share some common characteristics, including the gross anatomic appearance, alterations in extracellular matrix, and loss of smooth muscle cells, they are distinct diseases. In recent years, advances in genetic analysis, robust molecular tools, and increased availability of animal models have greatly enhanced our knowledge of the pathophysiology of aortic aneurysms. This review examines the various proposed cellular mechanisms responsible for aortic aneurysm formation and identifies opportunities for future studies.
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Affiliation(s)
- Raymundo Alain Quintana
- From the Division of Cardiology, Department of Medicine (R.A.Q., W.R.T.), Emory University School of Medicine, Atlanta, GA
| | - W Robert Taylor
- From the Division of Cardiology, Department of Medicine (R.A.Q., W.R.T.), Emory University School of Medicine, Atlanta, GA.,Wallace H. Coulter Department of Biomedical Engineering Georgia Institute of Technology (W.R.T.), Emory University School of Medicine, Atlanta, GA.,Division of Cardiology, Atlanta VA Medical Center, Decatur, GA (W.R.T.)
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23
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Sagan A, Mikolajczyk TP, Mrowiecki W, MacRitchie N, Daly K, Meldrum A, Migliarino S, Delles C, Urbanski K, Filip G, Kapelak B, Maffia P, Touyz R, Guzik TJ. T Cells Are Dominant Population in Human Abdominal Aortic Aneurysms and Their Infiltration in the Perivascular Tissue Correlates With Disease Severity. Front Immunol 2019; 10:1979. [PMID: 31552015 PMCID: PMC6736986 DOI: 10.3389/fimmu.2019.01979] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Accepted: 08/05/2019] [Indexed: 12/22/2022] Open
Abstract
Abdominal Aortic Aneurysm (AAA) is a major cause of cardiovascular mortality. Adverse changes in vascular phenotype act in concert with chronic inflammation to promote AAA progression. Perivascular adipose tissue (PVAT) helps maintain vascular homeostasis but when inflamed and dysfunctional, can also promote vascular pathology. Previous studies suggested that PVAT may be an important site of vascular inflammation in AAA; however, a detailed assessment of leukocyte populations in human AAA, their anatomic location in the vessel wall and correlation to AAA size remain undefined. Accordingly, we performed in depth immunophenotyping of cells infiltrating the pathologically altered perivascular tissue (PVT) and vessel wall in AAA samples at the site of maximal dilatation (n = 51 patients). Flow cytometry revealed that T cells, rather than macrophages, are the major leukocyte subset in AAA and that their greatest accumulations occur in PVT. Both CD4+ and CD8+ T cell populations are highly activated in both compartments, with CD4+ T cells displaying the highest activation status within the AAA wall. Finally, we observed a positive relationship between T cell infiltration in PVT and AAA wall. Interestingly, only PVT T cell infiltration was strongly related to tertiles of AAA size. In summary, this study highlights an important role for PVT as a reservoir of T lymphocytes and potentially as a key site in modulating the underlying inflammation in AAA.
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Affiliation(s)
- Agnieszka Sagan
- BHF Cardiovascular Research Centre, Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom.,Department of Internal and Agricultural Medicine, Jagiellonian University Medical College, Kraków, Poland
| | - Tomasz P Mikolajczyk
- Department of Internal and Agricultural Medicine, Jagiellonian University Medical College, Kraków, Poland.,Centre for Immunobiology, Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, United Kingdom
| | - Wojciech Mrowiecki
- Department of Vascular Surgery, CUMRiK, University Hospital, Kraków, Poland
| | - Neil MacRitchie
- Centre for Immunobiology, Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, United Kingdom
| | - Kevin Daly
- Department of Vascular Surgery, Queen Elizabeth University Hospital, Glasgow, United Kingdom
| | - Alan Meldrum
- Department of Vascular Surgery, Queen Elizabeth University Hospital, Glasgow, United Kingdom
| | - Serena Migliarino
- BHF Cardiovascular Research Centre, Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom
| | - Christian Delles
- BHF Cardiovascular Research Centre, Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom
| | - Karol Urbanski
- Department of Internal and Agricultural Medicine, Jagiellonian University Medical College, Kraków, Poland
| | - Grzegorz Filip
- Department of Cardiovascular Surgery and Transplantology, John Paul II Hospital, Kraków, Poland
| | - Boguslaw Kapelak
- Department of Cardiovascular Surgery and Transplantology, John Paul II Hospital, Kraków, Poland.,Institute of Cardiology, Jagiellonian University Medical College, Kraków, Poland
| | - Pasquale Maffia
- BHF Cardiovascular Research Centre, Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom.,Centre for Immunobiology, Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, United Kingdom.,Department of Pharmacy, University of Naples Federico II, Naples, Italy
| | - Rhian Touyz
- BHF Cardiovascular Research Centre, Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom
| | - Tomasz J Guzik
- BHF Cardiovascular Research Centre, Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom.,Department of Internal and Agricultural Medicine, Jagiellonian University Medical College, Kraków, Poland
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24
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Lu S, White JV, Judy RI, Merritt LL, Lin WL, Zhang X, Solomides C, Nwaneshiudu I, Gaughan J, Monos DS, Oleszak EL, Platsoucas CD. Clonally expanded alpha-chain T-cell receptor (TCR) transcripts are present in aneurysmal lesions of patients with Abdominal Aortic Aneurysm (AAA). PLoS One 2019; 14:e0218990. [PMID: 31310631 PMCID: PMC6634378 DOI: 10.1371/journal.pone.0218990] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Accepted: 06/14/2019] [Indexed: 01/25/2023] Open
Abstract
Abdominal aortic aneurysm (AAA) is a life-threatening immunological disease responsible for 1 to 2% of all deaths in 65 year old or older individuals. Although mononuclear cell infiltrates have been demonstrated in AAA lesions and autoimmunity may be responsible for the initiation and account for the propagation of the disease, the information available about the pathogenesis of AAA is limited. To examine whether AAA lesions from patients with AAA contain clonally expanded α-chain TCR transcripts, we amplified by the non-palindromic adaptor-PCR (NPA-PCR)/Vα-specific PCR and/or the Vα-specific PCR these α-chain TCR transcripts. The amplified transcripts were cloned and sequenced. Substantial proportions of identical α-chain TCR transcripts were identified in AAA lesions of 4 of 5 patients, demonstrating that clonally expanded T cells are present in these AAA lesions. These results were statistically significant by the bimodal distribution. Three of 5 of these patients were typed by DNA-based HLA-typing and all three expressed DRB1 alleles containing the DRβGln70 amino acid residue that has been demonstrated to be associated with AAA. All three patients exhibited clonally expanded T cells in AAA lesions. Four of the 5 patients with AAA who exhibited clonal expansions of α-chain TCR transcripts, also exhibited clonal expansions of β-chain TCR transcripts in AAA lesions, as we have demonstrated previously (J Immunol 192:4897, 2014). αβ TCR-expressing T cells infiltrating AAA lesions contain T-cell clones which have undergone proliferation and clonal expansion in vivo in response to as yet unidentified specific antigens that may be self or nonself. These results provide additional evidence supporting the hypothesis that AAA is a specific antigen-driven T-cell autoimmune disease.
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MESH Headings
- Aged
- Aged, 80 and over
- Amino Acid Sequence/genetics
- Antigens/genetics
- Antigens/immunology
- Aortic Aneurysm, Abdominal/genetics
- Aortic Aneurysm, Abdominal/immunology
- Aortic Aneurysm, Abdominal/pathology
- Cells, Cultured
- Clone Cells/immunology
- Humans
- Male
- Receptors, Antigen, T-Cell, alpha-beta/genetics
- Receptors, Antigen, T-Cell, alpha-beta/immunology
- Sequence Analysis, RNA
- T-Lymphocytes/immunology
- T-Lymphocytes/pathology
- Transcription, Genetic
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Affiliation(s)
- Song Lu
- Department of Microbiology and Immunology, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, United States of America
| | - John V. White
- Department of Surgery, Advocate Lutheran General Hospital and University of Illinois School of Medicine, Park Ridge, IL, United States of America
| | - Raquel I. Judy
- Department of Biological Sciences, Old Dominion University, Norfolk, VA, United States of America
| | - Lisa L. Merritt
- Department of Biological Sciences, Old Dominion University, Norfolk, VA, United States of America
| | - Wan Lu Lin
- Department of Microbiology and Immunology, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, United States of America
| | - Xiaoying Zhang
- Department of Microbiology and Immunology, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, United States of America
| | - Charalambos Solomides
- Department of Pathology and Laboratory Medicine, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, United States of America
| | - Ifeyinwa Nwaneshiudu
- Department of Microbiology and Immunology, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, United States of America
| | - John Gaughan
- Biostatistics Consulting Center, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, United States of America
| | - Dimitri S. Monos
- Department of Pathology and Laboratory Medicine, The Children’s Hospital of Philadelphia and the Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States of America
| | - Emilia L. Oleszak
- Department of Biological Sciences, Old Dominion University, Norfolk, VA, United States of America
- Department of Anatomy and Cell Biology, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, United States of America
- Center for Molecular Medicine, Old Dominion University, Norfolk, VA, United States of America
| | - Chris D. Platsoucas
- Department of Microbiology and Immunology, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, United States of America
- Department of Biological Sciences, Old Dominion University, Norfolk, VA, United States of America
- Center for Molecular Medicine, Old Dominion University, Norfolk, VA, United States of America
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25
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Potential Medication Treatment According to Pathological Mechanisms in Abdominal Aortic Aneurysm. J Cardiovasc Pharmacol 2019; 71:46-57. [PMID: 28953105 DOI: 10.1097/fjc.0000000000000540] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Abdominal aortic aneurysm (AAA) is a vascular disease with high mortality. Because of the lack of effective medications to stop or reverse the progression of AAA, surgical operation has become the most predominant recommendation of treatment for patients. There are many potential mechanisms, including inflammation, smooth muscle cell apoptosis, extracellular matrix degradation, oxidative stress, and so on, involving in AAA pathogenesis. According to those mechanisms, some potential therapeutic drugs have been proposed and tested in animal models and even in clinical trials. This review focuses on recent advances in both pathogenic mechanisms and potential pharmacologic therapies of AAA.
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26
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Li FD, Nie H, Tian C, Wang HX, Sun BH, Ren HL, Zhang X, Liao PZ, Liu D, Li HH, Zheng YH. Ablation and Inhibition of the Immunoproteasome Catalytic Subunit LMP7 Attenuate Experimental Abdominal Aortic Aneurysm Formation in Mice. THE JOURNAL OF IMMUNOLOGY 2019; 202:1176-1185. [PMID: 30642978 DOI: 10.4049/jimmunol.1800197] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Accepted: 12/03/2018] [Indexed: 11/19/2022]
Abstract
Low-molecular mass protein 7 (LMP7) is a proteolytic subunit of the immunoproteasome that is involved in regulating inflammatory responses. However, the role of LMP7 in the pathogenesis of abdominal aortic aneurysm (AAA) remains unknown. In this study, ApoE knockout (KO) or LMP7/ApoE double KO (dKO) mice were infused with angiotensin II (Ang II, 1000 ng/kg per minute) for up to 28 d. We found that LMP7 expression was significantly upregulated in AAA tissues from ApoE KO mice and human patients. Moreover, Ang II infusion markedly increased the incidence and severity of AAA in ApoE KO mice, which was considerably reduced in LMP7/ApoE dKO mice. Histological alterations, including aortic wall thickening, collagen deposition, elastin fragmentation, and vascular smooth muscle cell apoptosis in AAA tissue of ApoE KO mice, were also significantly attenuated in LMP7/ApoE dKO mice. Interestingly, LMP7/ApoE dKO mice showed a marked reduction of infiltration of CD3+ T cells, especially CD4+ T cells in AAA tissues compared with ApoE KO mice. Moreover, ablation of LMP7 substantially inhibited the differentiation of CD4+ T cells into Th1 and Th17 cells by reducing the activation of multiple transcriptional factors. We also investigated the effects of an LMP7-specific inhibitor PR-957 (also known as ONX 0914) on AAA formation in ApoE KO mice. PR-957 treatment could reduce the AAA incidence and severity. In conclusion, our results provide, to our knowledge, novel evidence that ablation or pharmacological inhibition of LMP7 attenuates Ang II-induced AAA formation, and LMP7 might be a novel therapeutic target for treating AAA in humans.
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Affiliation(s)
- Fang-da Li
- Department of Vascular Surgery, Peking Union Medical College Hospital, Beijing 100730, People's Republic of China
| | - Hao Nie
- Department of Vascular Surgery, Peking Union Medical College Hospital, Beijing 100730, People's Republic of China
| | - Cui Tian
- Department of Physiology and Physiopathology, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, People's Republic of China
| | - Hong-Xia Wang
- Department of Physiology and Physiopathology, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, People's Republic of China
| | - Bao-Hua Sun
- Department of Vascular Surgery, Peking Union Medical College Hospital, Beijing 100730, People's Republic of China
| | - Hua-Liang Ren
- Department of Vascular Surgery, Peking Union Medical College Hospital, Beijing 100730, People's Republic of China
| | - Xu Zhang
- Department of Vascular Surgery, Peking Union Medical College Hospital, Beijing 100730, People's Republic of China
| | - Peng-Zhi Liao
- Department of Vascular Surgery, Peking Union Medical College Hospital, Beijing 100730, People's Republic of China
| | - Duan Liu
- Department of Vascular Surgery, Peking Union Medical College Hospital, Beijing 100730, People's Republic of China
| | - Hui-Hua Li
- Department of Cardiology, Institute of Cardiovascular Diseases, First Affiliated Hospital of Dalian Medical University, Dalian 116011, People's Republic of China; and.,School of Public Health, Dalian Medical University, Dalian 116044, People's Republic of China
| | - Yue-Hong Zheng
- Department of Vascular Surgery, Peking Union Medical College Hospital, Beijing 100730, People's Republic of China;
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27
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Recombinant leptin attenuates abdominal aortic aneurysm formation in angiotensin II-infused apolipoprotein E-deficient mice. Biochem Biophys Res Commun 2018; 503:1450-1456. [DOI: 10.1016/j.bbrc.2018.07.062] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Accepted: 07/11/2018] [Indexed: 12/19/2022]
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28
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Modulation of Immune-Inflammatory Responses in Abdominal Aortic Aneurysm: Emerging Molecular Targets. J Immunol Res 2018; 2018:7213760. [PMID: 29967801 PMCID: PMC6008668 DOI: 10.1155/2018/7213760] [Citation(s) in RCA: 78] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Revised: 03/18/2018] [Accepted: 03/31/2018] [Indexed: 12/24/2022] Open
Abstract
Abdominal aortic aneurysm (AAA), a deadly vascular disease in human, is a chronic degenerative process of the abdominal aorta. In this process, inflammatory responses and immune system work efficiently by inflammatory cell attraction, proinflammatory factor secretion and subsequently MMP upregulation. Previous studies have demonstrated various inflammatory cell types in AAA of human and animals. The majority of cells, such as macrophages, CD4+ T cells, and B cells, play an important role in the diseased aortic wall through phenotypic modulation. Furthermore, immunoglobulins also greatly affect the functions and differentiation of immune cells in AAA. Recent evidence suggests that innate immune system, especially Toll-like receptors, chemokine receptors, and complements are involved in the progression of AAAs. We discussed the innate immune system, inflammatory cells, immunoglobulins, immune-mediated mechanisms, and key cytokines in the pathogenesis of AAA and particularly emphasis on a further trend and application of these interventions. This current understanding may offer new insights into the role of inflammation and immune response in AAA.
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Boese AC, Chang L, Yin KJ, Chen YE, Lee JP, Hamblin MH. Sex differences in abdominal aortic aneurysms. Am J Physiol Heart Circ Physiol 2018; 314:H1137-H1152. [PMID: 29350999 DOI: 10.1152/ajpheart.00519.2017] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Abdominal aortic aneurysm (AAA) is a vascular disorder with a high case fatality rate in the instance of rupture. AAA is a multifactorial disease, and the etiology is still not fully understood. AAA is more likely to occur in men, but women have a greater risk of rupture and worse prognosis. Women are reportedly protected against AAA possibly by premenopausal levels of estrogen and are, on average, diagnosed at older ages than men. Here, we review the present body of research on AAA pathophysiology in humans, animal models, and cultured cells, with an emphasis on sex differences and sex steroid hormone signaling.
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Affiliation(s)
- Austin C Boese
- Department of Pharmacology, Tulane University School of Medicine , New Orleans, Louisiana
| | - Lin Chang
- Center for Advanced Models for Translational Sciences and Therapeutics, Department of Internal Medicine, University of Michigan , Ann Arbor, Michigan
| | - Ke-Jie Yin
- Department of Neurology, University of Pittsburgh School of Medicine , Pittsburgh, Pennsylvania
| | - Y Eugene Chen
- Center for Advanced Models for Translational Sciences and Therapeutics, Department of Internal Medicine, University of Michigan , Ann Arbor, Michigan
| | - Jean-Pyo Lee
- Department of Physiology, Tulane University School of Medicine , New Orleans, Louisiana.,Center for Stem Cell Research and Regenerative Medicine , New Orleans, Louisiana
| | - Milton H Hamblin
- Department of Pharmacology, Tulane University School of Medicine , New Orleans, Louisiana
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van Puijvelde GHM, Foks AC, van Bochove RE, Bot I, Habets KLL, de Jager SC, ter Borg MND, van Osch P, Boon L, Vos M, de Waard V, Kuiper J. CD1d deficiency inhibits the development of abdominal aortic aneurysms in LDL receptor deficient mice. PLoS One 2018; 13:e0190962. [PMID: 29346401 PMCID: PMC5773169 DOI: 10.1371/journal.pone.0190962] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Accepted: 12/22/2017] [Indexed: 11/19/2022] Open
Abstract
An abdominal aortic aneurysm (AAA) is a dilatation of the abdominal aorta leading to serious complications and mostly to death. AAA development is associated with an accumulation of inflammatory cells in the aorta including NKT cells. An important factor in promoting the recruitment of these inflammatory cells into tissues and thereby contributing to the development of AAA is angiotensin II (Ang II). We demonstrate that a deficiency in CD1d dependent NKT cells under hyperlipidemic conditions (LDLr-/-CD1d-/- mice) results in a strong decline in the severity of angiotensin II induced aneurysm formation when compared with LDLr-/- mice. In addition, we show that Ang II amplifies the activation of NKT cells both in vivo and in vitro. We also provide evidence that type I NKT cells contribute to AAA development by inducing the expression of matrix degrading enzymes in vSMCs and macrophages, and by cytokine dependently decreasing vSMC viability. Altogether, these data prove that CD1d-dependent NKT cells contribute to AAA development in the Ang II-mediated aneurysm model by enhancing aortic degradation, establishing that therapeutic applications which target NKT cells can be a successful way to prevent AAA development.
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Affiliation(s)
- Gijs H. M. van Puijvelde
- Division of Biopharmaceutics, Leiden Academic Centre for Drug Research, Leiden University, Leiden, The Netherlands
- * E-mail:
| | - Amanda C. Foks
- Division of Biopharmaceutics, Leiden Academic Centre for Drug Research, Leiden University, Leiden, The Netherlands
| | - Rosemarie E. van Bochove
- Division of Biopharmaceutics, Leiden Academic Centre for Drug Research, Leiden University, Leiden, The Netherlands
| | - Ilze Bot
- Division of Biopharmaceutics, Leiden Academic Centre for Drug Research, Leiden University, Leiden, The Netherlands
| | - Kim L. L. Habets
- Division of Biopharmaceutics, Leiden Academic Centre for Drug Research, Leiden University, Leiden, The Netherlands
| | - Saskia C. de Jager
- Division of Biopharmaceutics, Leiden Academic Centre for Drug Research, Leiden University, Leiden, The Netherlands
| | - Mariëtte N. D. ter Borg
- Division of Biopharmaceutics, Leiden Academic Centre for Drug Research, Leiden University, Leiden, The Netherlands
| | - Puck van Osch
- Division of Biopharmaceutics, Leiden Academic Centre for Drug Research, Leiden University, Leiden, The Netherlands
| | | | - Mariska Vos
- Department of Medical Biochemistry, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - Vivian de Waard
- Department of Medical Biochemistry, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - Johan Kuiper
- Division of Biopharmaceutics, Leiden Academic Centre for Drug Research, Leiden University, Leiden, The Netherlands
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Aria H, Kalani M, Hodjati H, Doroudchi M. Elevated levels of IL-6 and IL-9 in the sera of patients with AAA do not correspond to their production by peripheral blood mononuclear cells. Artery Res 2018. [DOI: 10.1016/j.artres.2017.12.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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Li FD, Kang R, Nie H, Wang XM, Zheng YH. An association of spleen volume and aortic diameter in patients and in mice with abdominal aortic aneurysm. BMC Surg 2017; 17:134. [PMID: 29246140 PMCID: PMC5731055 DOI: 10.1186/s12893-017-0328-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Accepted: 11/27/2017] [Indexed: 12/21/2022] Open
Abstract
Background To investigate the potential mechanism of splenic enlargement in Ang II/APOE model and the associations between the spleen volume and the indices of abdominal aortic aneurysm (AAA) in human. Methods To investigate the changes of spleen volume on AAA formation, apolipoprotein E knockout (Apo E−/−) mice were treated with Ang II (1000 ng/kg/min) up to 28 days to generate AAA. We used Magnetic Resonance Imaging (MRI), liquid measurement, H&E and immunohistochemistry to analyze the morphological or pathological changes of spleen. To investigate the changes of spleen volume in human, a retrospective case-control study involving 30 male AAA patients and 25 male controls were performed. Spleen volume was measured on computed tomography images. Univariate analysis and multivariable sequential logistic regression analyses were used to analyze the association between spleen volume and maximal diameter (Dmax). Results In Ang II/APOE model, we found splenic enlargement in mice with AAA compared with the sham group. Histopathological investigations revealed hypertrophies of splenic follicles and increased populations of CD3+ T cells. In clinic cohort study, univariate analysis revealed higher values in large AAA (Dmax > 5.5 cm,n = 15) compared with the small (Dmax < 5.5 cm,n = 15) for spleen volume (230.6 ± 64.5 cm3 vs. 170.0 ± 32.8 cm3; P = 0.0030). Regression analysis revealed a statistically significant positive linear correlation of spleen volume and Dmax of AAA (r = 0.3611;P = 0.0423). Conclusions Mimicking the splenic pathology observed in murine AAA model, there is a strong positive correlation between spleen volume and the Dmax in male AAA patients. As Dmax is a valuable predictor of AAA rupture, the spleen enlargement may be another indicator.
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Affiliation(s)
- Fang-Da Li
- Department of Vascular Surgery, Peking Union Medical College Hospital, No.1 Shuaifuyuan, Dongdan, Dongcheng District, Beijing, 100730, China
| | - Rui Kang
- Shandong Medical Imaging Research Institute, Shandong Provincial Key Laboratory of Diagnosis and Treatment of Cardio-Cerebral Vascular Diseases, Shandong University, NO, 324, Jingwu Road, Jinan, Shandong, 250021, China
| | - Hao Nie
- Department of Vascular Surgery, Peking Union Medical College Hospital, No.1 Shuaifuyuan, Dongdan, Dongcheng District, Beijing, 100730, China
| | - Xi-Ming Wang
- Shandong Medical Imaging Research Institute, Shandong Provincial Key Laboratory of Diagnosis and Treatment of Cardio-Cerebral Vascular Diseases, Shandong University, NO, 324, Jingwu Road, Jinan, Shandong, 250021, China.
| | - Yue-Hong Zheng
- Department of Vascular Surgery, Peking Union Medical College Hospital, No.1 Shuaifuyuan, Dongdan, Dongcheng District, Beijing, 100730, China.
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Hayashi T, Sasaki N, Yamashita T, Mizoguchi T, Emoto T, Amin HZ, Yodoi K, Matsumoto T, Kasahara K, Yoshida N, Tabata T, Kitano N, Fukunaga A, Nishigori C, Rikitake Y, Hirata KI. Ultraviolet B Exposure Inhibits Angiotensin II-Induced Abdominal Aortic Aneurysm Formation in Mice by Expanding CD4 +Foxp3 + Regulatory T Cells. J Am Heart Assoc 2017; 6:JAHA.117.007024. [PMID: 28860231 PMCID: PMC5634315 DOI: 10.1161/jaha.117.007024] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Background Pathogenic immune responses are known to play an important role in abdominal aortic aneurysm (AAA) development. Ultraviolet B (UVB) irradiation has been demonstrated to have therapeutic potential not only for cutaneous diseases but also for systemic inflammatory diseases in mice by suppressing immunoinflammatory responses. We investigated the effect of UVB irradiation on experimental AAA. Methods and Results We used an angiotensin II–induced AAA model in apolipoprotein E–deficient mice fed a high‐cholesterol diet. Mice aged 10 weeks were irradiated with 5 kJ/m2UVB once weekly for 6 weeks (UVB‐irradiated, n=38; nonirradiated, n=42) and were euthanized for evaluation of AAA formation at 16 weeks. Overall, 93% of angiotensin II–infused mice developed AAA, with 60% mortality possibly because of aneurysm rupture. UVB irradiation significantly decreased the incidence (66%) and mortality (29%) of AAA (P=0.004 and P=0.006, respectively). UVB‐irradiated mice had significantly smaller diameter AAA (P=0.008) and fewer inflammatory cells in the aortic aneurysm tissue than nonirradiated mice, along with systemic expansion of CD4+Foxp3+ regulatory T cells and decreased effector CD4+CD44highCD62Llow T cells in para‐aortic lymph nodes. Genetic depletion of regulatory T cells abrogated these beneficial effects of UVB treatment, demonstrating a critical role of regulatory T cells. Conclusions Our data suggest that UVB‐dependent expansion of regulatory T cells has beneficial effects on experimental AAA and may provide a novel strategy for the treatment of AAA.
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Affiliation(s)
- Tomohiro Hayashi
- Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Naoto Sasaki
- Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan .,Department of Medical Pharmaceutics, Kobe Pharmaceutical University, Kobe, Japan
| | - Tomoya Yamashita
- Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Taiji Mizoguchi
- Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Takuo Emoto
- Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Hilman Zulkifli Amin
- Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan.,Department of Medical Pharmaceutics, Kobe Pharmaceutical University, Kobe, Japan.,Department of Internal Medicine, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia
| | - Keiko Yodoi
- Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Takuya Matsumoto
- Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Kazuyuki Kasahara
- Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Naofumi Yoshida
- Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Tokiko Tabata
- Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Naoki Kitano
- Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Atsushi Fukunaga
- Division of Dermatology, Department of Internal Related, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Chikako Nishigori
- Division of Dermatology, Department of Internal Related, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Yoshiyuki Rikitake
- Department of Medical Pharmaceutics, Kobe Pharmaceutical University, Kobe, Japan
| | - Ken-Ichi Hirata
- Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
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Circulating microRNAs signature correlates with positive [ 18F]fluorodeoxyglucose-positron emission tomography in patients with abdominal aortic aneurysm. J Vasc Surg 2017; 67:585-595.e3. [PMID: 28431866 DOI: 10.1016/j.jvs.2016.12.112] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Accepted: 12/12/2016] [Indexed: 12/12/2022]
Abstract
BACKGROUND Prediction of abdominal aortic aneurysm (AAA) rupture is a challenging issue. Small noncoding microRNAs (miRNAs) are potent regulators of gene expression and are considered as valuable circulating biomarkers. Recently, [18F]fluorodeoxyglucose (FDG) uptake detected by positron emission tomography (PET) in AAA was correlated with cellular and molecular alterations involved in wall instability and its potential rupture. Our study aimed at identifying circulating miRNAs correlated with a positive PET that could help discriminate patients at high risk of rupture. METHODS The level of 372 miRNAs was evaluated by polymerase chain reaction array in plasma from 35 AAA patients displaying no FDG uptake (A0) and 22 patients with a positive PET uptake (A+). The modulated miRNAs were validated by quantitative polymerase chain reaction and measured in aneurysmal tissues from both groups of patients. RESULTS Six circulating miRNAs were found significantly modulated in A+ vs A0 patients. They were significantly correlated not only between them but also with the intensity of FDG uptake. Two of them correlated also with the AAA diameter. These miRNAs displayed significant discriminating power between the A+ and A0 groups as determined by receiver operating characteristic curves. Three downregulated circulating miRNAs (miR-99b-5p, miR-125b-5p, and miR-204-5p) were also significantly reduced in the aneurysmal tissue, specifically in the FDG-uptake site, compared with a negative zone in the same aneurysm and with A0 aneurysms. They were further significantly inversely correlated with the expression, at the positive uptake site, of some of their potential gene targets, most notably matrix metalloproteinase 13. CONCLUSIONS Six miRNAs were identified as potential new circulating biomarkers of PET+ AAA. Three of these were similarly modulated in the metabolically active aneurysmal wall and might be directly involved in AAA instability.
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Abstract
Abdominal aortic aneurysm (AAA) is a localized enlargement of the abdominal aorta, such that the diameter exceeds 3 cm. The natural history of AAA is progressive growth leading to rupture, an event that carries up to 90% risk of mortality. Hence there is a need to predict the growth of the diameter of the aorta based on the diameter of a patient’s aneurysm at initial screening and aided by non-invasive biomarkers. IL-6 is overexpressed in AAA and was suggested as a prognostic marker for the risk in AAA. The present paper develops a mathematical model which relates the growth of the abdominal aorta to the serum concentration of IL-6. Given the initial diameter of the aorta and the serum concentration of IL-6, the model predicts the growth of the diameter at subsequent times. Such a prediction can provide guidance to how closely the patient’s abdominal aorta should be monitored. The mathematical model is represented by a system of partial differential equations taking place in the aortic wall, where the media is assumed to have the constituency of an hyperelastic material.
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Shen YH, LeMaire SA. Molecular pathogenesis of genetic and sporadic aortic aneurysms and dissections. Curr Probl Surg 2017; 54:95-155. [PMID: 28521856 DOI: 10.1067/j.cpsurg.2017.01.001] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Accepted: 01/16/2017] [Indexed: 12/20/2022]
Affiliation(s)
- Ying H Shen
- Division of Cardiothoracic Surgery, Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, TX; Department of Cardiovascular Surgery, Texas Heart Institute, Houston, TX; Cardiovascular Research Institute, Baylor College of Medicine, Houston, TX.
| | - Scott A LeMaire
- Division of Cardiothoracic Surgery, Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, TX; Department of Cardiovascular Surgery, Texas Heart Institute, Houston, TX; Cardiovascular Research Institute, Baylor College of Medicine, Houston, TX; Department of Molecular Physiology and Biophysics, Baylor College of Medicine, Houston, TX.
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Xie J, Jones TJ, Feng D, Cook TG, Jester AA, Yi R, Jawed YT, Babbey C, March KL, Murphy MP. Human Adipose-Derived Stem Cells Suppress Elastase-Induced Murine Abdominal Aortic Inflammation and Aneurysm Expansion Through Paracrine Factors. Cell Transplant 2016; 26:173-189. [PMID: 27436185 DOI: 10.3727/096368916x692212] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Abdominal aortic aneurysm (AAA) is a potentially lethal disease associated with immune activation-induced aortic degradation. We hypothesized that xenotransplantation of human adipose-derived stem cells (hADSCs) would reduce aortic inflammation and attenuate expansion in a murine AAA model. Modulatory effects of ADSCs on immune cell subtypes associated with AAA progression were investigated using human peripheral blood mononuclear cells (hPBMNCs) cocultured with ADSCs. Murine AAA was induced through elastase application to the abdominal aorta in C57BL/6 mice. ADSCs were administered intravenously, and aortic changes were determined by ultrasonography and videomicrometry. Circulating monocytes, aortic neutrophils, CD28- T cells, FoxP3+ regulatory T cells (Tregs), and CD206+ M2 macrophages were assessed at multiple terminal time points. In vitro, ADSCs induced M2 macrophage and Treg phenotypes while inhibiting neutrophil transmigration and lymphocyte activation without cellular contact. Intravenous ADSC delivery reduced aneurysmal expansion starting from day 4 [from baseline: 54.8% (saline) vs. 16.9% (ADSCs), n = 10 at baseline, n = 4 at day 4, p < 0.001], and the therapeutic effect persists through day 14 (from baseline: 64.1% saline vs. 24.6% ADSCs, n = 4, p < 0.01). ADSC administration increased aortic Tregs by 20-fold (n = 5, p < 0.01), while decreasing CD4+CD28- (-28%), CD8+CD28- T cells (-61%), and Ly6G/C+ neutrophils (-43%, n = 5, p < 0.05). Circulating CD115+CXCR1-LY6C+-activated monocytes decreased in the ADSC-treated group by day 7 (-60%, n = 10, p < 0.05), paralleled by an increase in aortic CD206+ M2 macrophages by 2.4-fold (n = 5, p < 0.05). Intravenously injected ADSCs transiently engrafted in the lung on day 1 without aortic engraftment at any time point. In conclusion, ADSCs exhibit pleiotropic immunomodulatory effects in vitro as well as in vivo during the development of AAA. The temporal evolution of these effects systemically as well as in aortic tissue suggests that ADSCs induce a sequence of anti-inflammatory cellular events mediated by paracrine factors, which leads to amelioration of AAA progression.
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Liu CL, Wang Y, Liao M, Wemmelund H, Ren J, Fernandes C, Zhou Y, Sukhova GK, Lindholt JS, Johnsen SP, Zhang JY, Cheng X, Huang X, Daugherty A, Levy BD, Libby P, Shi GP. Allergic Lung Inflammation Aggravates Angiotensin II-Induced Abdominal Aortic Aneurysms in Mice. Arterioscler Thromb Vasc Biol 2015; 36:69-77. [PMID: 26543094 DOI: 10.1161/atvbaha.115.305911] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Accepted: 10/14/2015] [Indexed: 11/16/2022]
Abstract
OBJECTIVE Asthma and abdominal aortic aneurysms (AAA) both involve inflammation. Patients with asthma have an increased risk of developing AAA or experiencing aortic rupture. This study tests the development of one disease on the progression of the other. APPROACH AND RESULTS Ovalbumin sensitization and challenge in mice led to the development of allergic lung inflammation (ALI). Subcutaneous infusion of angiotensin II into mice produced AAA. Simultaneous production of ALI in AAA mice doubled abdominal aortic diameter and increased macrophage and mast cell content, arterial media smooth muscle cell loss, cell proliferation, and angiogenesis in AAA lesions. ALI also increased plasma IgE, reduced plasma interleukin-5, and increased bronchioalveolar total inflammatory cell and eosinophil accumulation. Intraperitoneal administration of an anti-IgE antibody suppressed AAA lesion formation and reduced lesion inflammation, plasma IgE, and bronchioalveolar inflammation. Pre-establishment of ALI also increased AAA lesion size, lesion accumulation of macrophages and mast cells, media smooth muscle cell loss, and plasma IgE, reduced plasma interleukin-5, interleukin-13, and transforming growth factor-β, and increased bronchioalveolar inflammation. Consequent production of ALI also doubled lesion size of pre-established AAA and increased lesion mast cell and T-cell accumulation, media smooth muscle cell loss, lesion cell proliferation and apoptosis, plasma IgE, and bronchioalveolar inflammation. In periaortic CaCl2 injury-induced AAA in mice, production of ALI also increased AAA formation, lesion inflammation, plasma IgE, and bronchioalveolar inflammatory cell accumulation. CONCLUSIONS This study suggests a pathological link between airway allergic disease and AAA. Production of one disease aggravates the progression of the other.
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Affiliation(s)
- Cong-Lin Liu
- From the Department of Cardiology, Institute of Clinical Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China (C.-L.L., J.-Y.Z., G.-P.S.); Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA (C.-L.L., Y.W., M.L., J.R., C.F., Y.Z., G.K.S., B.D.L., P.L., G.-P.S.); Department of Cardiology, Shanghai First People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China (Y.W.); Laboratory of Cardiovascular Immunology, Institute of Cardiology, Union Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan, China (M.L., X.C.); Department of Vascular Surgery, Viborg Regional Hospital, Viborg, Denmark (H.W.); Department of Hypertension, Beijing Anzhen Hospital, Capital Medical University, Beijing, China (J.R.); Department of Clinical Epidemiology, Institute of Clinical Medicine, Aarhus University Hospital, Aarhus, Denmark (H.W., S.P.J.); Department of Cardiothoracic and Vascular Surgery, Elitary Research Centre of Individualized Medicine of Arterial Disease, Odense University Hospital, Odense, Denmark (J.S.L.); Department of Medicine, University of California, San Francisco (X.H.); and Saha Cardiovascular Research Center, University of Kentucky, Lexington (A.D.)
| | - Yi Wang
- From the Department of Cardiology, Institute of Clinical Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China (C.-L.L., J.-Y.Z., G.-P.S.); Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA (C.-L.L., Y.W., M.L., J.R., C.F., Y.Z., G.K.S., B.D.L., P.L., G.-P.S.); Department of Cardiology, Shanghai First People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China (Y.W.); Laboratory of Cardiovascular Immunology, Institute of Cardiology, Union Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan, China (M.L., X.C.); Department of Vascular Surgery, Viborg Regional Hospital, Viborg, Denmark (H.W.); Department of Hypertension, Beijing Anzhen Hospital, Capital Medical University, Beijing, China (J.R.); Department of Clinical Epidemiology, Institute of Clinical Medicine, Aarhus University Hospital, Aarhus, Denmark (H.W., S.P.J.); Department of Cardiothoracic and Vascular Surgery, Elitary Research Centre of Individualized Medicine of Arterial Disease, Odense University Hospital, Odense, Denmark (J.S.L.); Department of Medicine, University of California, San Francisco (X.H.); and Saha Cardiovascular Research Center, University of Kentucky, Lexington (A.D.)
| | - Mengyang Liao
- From the Department of Cardiology, Institute of Clinical Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China (C.-L.L., J.-Y.Z., G.-P.S.); Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA (C.-L.L., Y.W., M.L., J.R., C.F., Y.Z., G.K.S., B.D.L., P.L., G.-P.S.); Department of Cardiology, Shanghai First People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China (Y.W.); Laboratory of Cardiovascular Immunology, Institute of Cardiology, Union Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan, China (M.L., X.C.); Department of Vascular Surgery, Viborg Regional Hospital, Viborg, Denmark (H.W.); Department of Hypertension, Beijing Anzhen Hospital, Capital Medical University, Beijing, China (J.R.); Department of Clinical Epidemiology, Institute of Clinical Medicine, Aarhus University Hospital, Aarhus, Denmark (H.W., S.P.J.); Department of Cardiothoracic and Vascular Surgery, Elitary Research Centre of Individualized Medicine of Arterial Disease, Odense University Hospital, Odense, Denmark (J.S.L.); Department of Medicine, University of California, San Francisco (X.H.); and Saha Cardiovascular Research Center, University of Kentucky, Lexington (A.D.)
| | - Holger Wemmelund
- From the Department of Cardiology, Institute of Clinical Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China (C.-L.L., J.-Y.Z., G.-P.S.); Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA (C.-L.L., Y.W., M.L., J.R., C.F., Y.Z., G.K.S., B.D.L., P.L., G.-P.S.); Department of Cardiology, Shanghai First People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China (Y.W.); Laboratory of Cardiovascular Immunology, Institute of Cardiology, Union Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan, China (M.L., X.C.); Department of Vascular Surgery, Viborg Regional Hospital, Viborg, Denmark (H.W.); Department of Hypertension, Beijing Anzhen Hospital, Capital Medical University, Beijing, China (J.R.); Department of Clinical Epidemiology, Institute of Clinical Medicine, Aarhus University Hospital, Aarhus, Denmark (H.W., S.P.J.); Department of Cardiothoracic and Vascular Surgery, Elitary Research Centre of Individualized Medicine of Arterial Disease, Odense University Hospital, Odense, Denmark (J.S.L.); Department of Medicine, University of California, San Francisco (X.H.); and Saha Cardiovascular Research Center, University of Kentucky, Lexington (A.D.)
| | - Jingyuan Ren
- From the Department of Cardiology, Institute of Clinical Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China (C.-L.L., J.-Y.Z., G.-P.S.); Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA (C.-L.L., Y.W., M.L., J.R., C.F., Y.Z., G.K.S., B.D.L., P.L., G.-P.S.); Department of Cardiology, Shanghai First People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China (Y.W.); Laboratory of Cardiovascular Immunology, Institute of Cardiology, Union Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan, China (M.L., X.C.); Department of Vascular Surgery, Viborg Regional Hospital, Viborg, Denmark (H.W.); Department of Hypertension, Beijing Anzhen Hospital, Capital Medical University, Beijing, China (J.R.); Department of Clinical Epidemiology, Institute of Clinical Medicine, Aarhus University Hospital, Aarhus, Denmark (H.W., S.P.J.); Department of Cardiothoracic and Vascular Surgery, Elitary Research Centre of Individualized Medicine of Arterial Disease, Odense University Hospital, Odense, Denmark (J.S.L.); Department of Medicine, University of California, San Francisco (X.H.); and Saha Cardiovascular Research Center, University of Kentucky, Lexington (A.D.)
| | - Cleverson Fernandes
- From the Department of Cardiology, Institute of Clinical Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China (C.-L.L., J.-Y.Z., G.-P.S.); Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA (C.-L.L., Y.W., M.L., J.R., C.F., Y.Z., G.K.S., B.D.L., P.L., G.-P.S.); Department of Cardiology, Shanghai First People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China (Y.W.); Laboratory of Cardiovascular Immunology, Institute of Cardiology, Union Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan, China (M.L., X.C.); Department of Vascular Surgery, Viborg Regional Hospital, Viborg, Denmark (H.W.); Department of Hypertension, Beijing Anzhen Hospital, Capital Medical University, Beijing, China (J.R.); Department of Clinical Epidemiology, Institute of Clinical Medicine, Aarhus University Hospital, Aarhus, Denmark (H.W., S.P.J.); Department of Cardiothoracic and Vascular Surgery, Elitary Research Centre of Individualized Medicine of Arterial Disease, Odense University Hospital, Odense, Denmark (J.S.L.); Department of Medicine, University of California, San Francisco (X.H.); and Saha Cardiovascular Research Center, University of Kentucky, Lexington (A.D.)
| | - Yi Zhou
- From the Department of Cardiology, Institute of Clinical Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China (C.-L.L., J.-Y.Z., G.-P.S.); Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA (C.-L.L., Y.W., M.L., J.R., C.F., Y.Z., G.K.S., B.D.L., P.L., G.-P.S.); Department of Cardiology, Shanghai First People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China (Y.W.); Laboratory of Cardiovascular Immunology, Institute of Cardiology, Union Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan, China (M.L., X.C.); Department of Vascular Surgery, Viborg Regional Hospital, Viborg, Denmark (H.W.); Department of Hypertension, Beijing Anzhen Hospital, Capital Medical University, Beijing, China (J.R.); Department of Clinical Epidemiology, Institute of Clinical Medicine, Aarhus University Hospital, Aarhus, Denmark (H.W., S.P.J.); Department of Cardiothoracic and Vascular Surgery, Elitary Research Centre of Individualized Medicine of Arterial Disease, Odense University Hospital, Odense, Denmark (J.S.L.); Department of Medicine, University of California, San Francisco (X.H.); and Saha Cardiovascular Research Center, University of Kentucky, Lexington (A.D.)
| | - Galina K Sukhova
- From the Department of Cardiology, Institute of Clinical Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China (C.-L.L., J.-Y.Z., G.-P.S.); Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA (C.-L.L., Y.W., M.L., J.R., C.F., Y.Z., G.K.S., B.D.L., P.L., G.-P.S.); Department of Cardiology, Shanghai First People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China (Y.W.); Laboratory of Cardiovascular Immunology, Institute of Cardiology, Union Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan, China (M.L., X.C.); Department of Vascular Surgery, Viborg Regional Hospital, Viborg, Denmark (H.W.); Department of Hypertension, Beijing Anzhen Hospital, Capital Medical University, Beijing, China (J.R.); Department of Clinical Epidemiology, Institute of Clinical Medicine, Aarhus University Hospital, Aarhus, Denmark (H.W., S.P.J.); Department of Cardiothoracic and Vascular Surgery, Elitary Research Centre of Individualized Medicine of Arterial Disease, Odense University Hospital, Odense, Denmark (J.S.L.); Department of Medicine, University of California, San Francisco (X.H.); and Saha Cardiovascular Research Center, University of Kentucky, Lexington (A.D.)
| | - Jes S Lindholt
- From the Department of Cardiology, Institute of Clinical Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China (C.-L.L., J.-Y.Z., G.-P.S.); Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA (C.-L.L., Y.W., M.L., J.R., C.F., Y.Z., G.K.S., B.D.L., P.L., G.-P.S.); Department of Cardiology, Shanghai First People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China (Y.W.); Laboratory of Cardiovascular Immunology, Institute of Cardiology, Union Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan, China (M.L., X.C.); Department of Vascular Surgery, Viborg Regional Hospital, Viborg, Denmark (H.W.); Department of Hypertension, Beijing Anzhen Hospital, Capital Medical University, Beijing, China (J.R.); Department of Clinical Epidemiology, Institute of Clinical Medicine, Aarhus University Hospital, Aarhus, Denmark (H.W., S.P.J.); Department of Cardiothoracic and Vascular Surgery, Elitary Research Centre of Individualized Medicine of Arterial Disease, Odense University Hospital, Odense, Denmark (J.S.L.); Department of Medicine, University of California, San Francisco (X.H.); and Saha Cardiovascular Research Center, University of Kentucky, Lexington (A.D.)
| | - Søren P Johnsen
- From the Department of Cardiology, Institute of Clinical Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China (C.-L.L., J.-Y.Z., G.-P.S.); Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA (C.-L.L., Y.W., M.L., J.R., C.F., Y.Z., G.K.S., B.D.L., P.L., G.-P.S.); Department of Cardiology, Shanghai First People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China (Y.W.); Laboratory of Cardiovascular Immunology, Institute of Cardiology, Union Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan, China (M.L., X.C.); Department of Vascular Surgery, Viborg Regional Hospital, Viborg, Denmark (H.W.); Department of Hypertension, Beijing Anzhen Hospital, Capital Medical University, Beijing, China (J.R.); Department of Clinical Epidemiology, Institute of Clinical Medicine, Aarhus University Hospital, Aarhus, Denmark (H.W., S.P.J.); Department of Cardiothoracic and Vascular Surgery, Elitary Research Centre of Individualized Medicine of Arterial Disease, Odense University Hospital, Odense, Denmark (J.S.L.); Department of Medicine, University of California, San Francisco (X.H.); and Saha Cardiovascular Research Center, University of Kentucky, Lexington (A.D.)
| | - Jin-Ying Zhang
- From the Department of Cardiology, Institute of Clinical Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China (C.-L.L., J.-Y.Z., G.-P.S.); Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA (C.-L.L., Y.W., M.L., J.R., C.F., Y.Z., G.K.S., B.D.L., P.L., G.-P.S.); Department of Cardiology, Shanghai First People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China (Y.W.); Laboratory of Cardiovascular Immunology, Institute of Cardiology, Union Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan, China (M.L., X.C.); Department of Vascular Surgery, Viborg Regional Hospital, Viborg, Denmark (H.W.); Department of Hypertension, Beijing Anzhen Hospital, Capital Medical University, Beijing, China (J.R.); Department of Clinical Epidemiology, Institute of Clinical Medicine, Aarhus University Hospital, Aarhus, Denmark (H.W., S.P.J.); Department of Cardiothoracic and Vascular Surgery, Elitary Research Centre of Individualized Medicine of Arterial Disease, Odense University Hospital, Odense, Denmark (J.S.L.); Department of Medicine, University of California, San Francisco (X.H.); and Saha Cardiovascular Research Center, University of Kentucky, Lexington (A.D.)
| | - Xiang Cheng
- From the Department of Cardiology, Institute of Clinical Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China (C.-L.L., J.-Y.Z., G.-P.S.); Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA (C.-L.L., Y.W., M.L., J.R., C.F., Y.Z., G.K.S., B.D.L., P.L., G.-P.S.); Department of Cardiology, Shanghai First People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China (Y.W.); Laboratory of Cardiovascular Immunology, Institute of Cardiology, Union Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan, China (M.L., X.C.); Department of Vascular Surgery, Viborg Regional Hospital, Viborg, Denmark (H.W.); Department of Hypertension, Beijing Anzhen Hospital, Capital Medical University, Beijing, China (J.R.); Department of Clinical Epidemiology, Institute of Clinical Medicine, Aarhus University Hospital, Aarhus, Denmark (H.W., S.P.J.); Department of Cardiothoracic and Vascular Surgery, Elitary Research Centre of Individualized Medicine of Arterial Disease, Odense University Hospital, Odense, Denmark (J.S.L.); Department of Medicine, University of California, San Francisco (X.H.); and Saha Cardiovascular Research Center, University of Kentucky, Lexington (A.D.)
| | - Xiaozhu Huang
- From the Department of Cardiology, Institute of Clinical Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China (C.-L.L., J.-Y.Z., G.-P.S.); Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA (C.-L.L., Y.W., M.L., J.R., C.F., Y.Z., G.K.S., B.D.L., P.L., G.-P.S.); Department of Cardiology, Shanghai First People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China (Y.W.); Laboratory of Cardiovascular Immunology, Institute of Cardiology, Union Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan, China (M.L., X.C.); Department of Vascular Surgery, Viborg Regional Hospital, Viborg, Denmark (H.W.); Department of Hypertension, Beijing Anzhen Hospital, Capital Medical University, Beijing, China (J.R.); Department of Clinical Epidemiology, Institute of Clinical Medicine, Aarhus University Hospital, Aarhus, Denmark (H.W., S.P.J.); Department of Cardiothoracic and Vascular Surgery, Elitary Research Centre of Individualized Medicine of Arterial Disease, Odense University Hospital, Odense, Denmark (J.S.L.); Department of Medicine, University of California, San Francisco (X.H.); and Saha Cardiovascular Research Center, University of Kentucky, Lexington (A.D.)
| | - Alan Daugherty
- From the Department of Cardiology, Institute of Clinical Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China (C.-L.L., J.-Y.Z., G.-P.S.); Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA (C.-L.L., Y.W., M.L., J.R., C.F., Y.Z., G.K.S., B.D.L., P.L., G.-P.S.); Department of Cardiology, Shanghai First People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China (Y.W.); Laboratory of Cardiovascular Immunology, Institute of Cardiology, Union Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan, China (M.L., X.C.); Department of Vascular Surgery, Viborg Regional Hospital, Viborg, Denmark (H.W.); Department of Hypertension, Beijing Anzhen Hospital, Capital Medical University, Beijing, China (J.R.); Department of Clinical Epidemiology, Institute of Clinical Medicine, Aarhus University Hospital, Aarhus, Denmark (H.W., S.P.J.); Department of Cardiothoracic and Vascular Surgery, Elitary Research Centre of Individualized Medicine of Arterial Disease, Odense University Hospital, Odense, Denmark (J.S.L.); Department of Medicine, University of California, San Francisco (X.H.); and Saha Cardiovascular Research Center, University of Kentucky, Lexington (A.D.)
| | - Bruce D Levy
- From the Department of Cardiology, Institute of Clinical Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China (C.-L.L., J.-Y.Z., G.-P.S.); Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA (C.-L.L., Y.W., M.L., J.R., C.F., Y.Z., G.K.S., B.D.L., P.L., G.-P.S.); Department of Cardiology, Shanghai First People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China (Y.W.); Laboratory of Cardiovascular Immunology, Institute of Cardiology, Union Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan, China (M.L., X.C.); Department of Vascular Surgery, Viborg Regional Hospital, Viborg, Denmark (H.W.); Department of Hypertension, Beijing Anzhen Hospital, Capital Medical University, Beijing, China (J.R.); Department of Clinical Epidemiology, Institute of Clinical Medicine, Aarhus University Hospital, Aarhus, Denmark (H.W., S.P.J.); Department of Cardiothoracic and Vascular Surgery, Elitary Research Centre of Individualized Medicine of Arterial Disease, Odense University Hospital, Odense, Denmark (J.S.L.); Department of Medicine, University of California, San Francisco (X.H.); and Saha Cardiovascular Research Center, University of Kentucky, Lexington (A.D.)
| | - Peter Libby
- From the Department of Cardiology, Institute of Clinical Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China (C.-L.L., J.-Y.Z., G.-P.S.); Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA (C.-L.L., Y.W., M.L., J.R., C.F., Y.Z., G.K.S., B.D.L., P.L., G.-P.S.); Department of Cardiology, Shanghai First People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China (Y.W.); Laboratory of Cardiovascular Immunology, Institute of Cardiology, Union Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan, China (M.L., X.C.); Department of Vascular Surgery, Viborg Regional Hospital, Viborg, Denmark (H.W.); Department of Hypertension, Beijing Anzhen Hospital, Capital Medical University, Beijing, China (J.R.); Department of Clinical Epidemiology, Institute of Clinical Medicine, Aarhus University Hospital, Aarhus, Denmark (H.W., S.P.J.); Department of Cardiothoracic and Vascular Surgery, Elitary Research Centre of Individualized Medicine of Arterial Disease, Odense University Hospital, Odense, Denmark (J.S.L.); Department of Medicine, University of California, San Francisco (X.H.); and Saha Cardiovascular Research Center, University of Kentucky, Lexington (A.D.)
| | - Guo-Ping Shi
- From the Department of Cardiology, Institute of Clinical Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China (C.-L.L., J.-Y.Z., G.-P.S.); Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA (C.-L.L., Y.W., M.L., J.R., C.F., Y.Z., G.K.S., B.D.L., P.L., G.-P.S.); Department of Cardiology, Shanghai First People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China (Y.W.); Laboratory of Cardiovascular Immunology, Institute of Cardiology, Union Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan, China (M.L., X.C.); Department of Vascular Surgery, Viborg Regional Hospital, Viborg, Denmark (H.W.); Department of Hypertension, Beijing Anzhen Hospital, Capital Medical University, Beijing, China (J.R.); Department of Clinical Epidemiology, Institute of Clinical Medicine, Aarhus University Hospital, Aarhus, Denmark (H.W., S.P.J.); Department of Cardiothoracic and Vascular Surgery, Elitary Research Centre of Individualized Medicine of Arterial Disease, Odense University Hospital, Odense, Denmark (J.S.L.); Department of Medicine, University of California, San Francisco (X.H.); and Saha Cardiovascular Research Center, University of Kentucky, Lexington (A.D.).
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Chang TW, Gracon ASA, Murphy MP, Wilkes DS. Exploring autoimmunity in the pathogenesis of abdominal aortic aneurysms. Am J Physiol Heart Circ Physiol 2015; 309:H719-27. [DOI: 10.1152/ajpheart.00273.2015] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2015] [Accepted: 06/22/2015] [Indexed: 12/14/2022]
Abstract
The abdominal aortic aneurysm (AAA) is a disease process that carries significant morbidity and mortality in the absence of early identification and treatment. While current management includes surveillance and surgical treatment of low- and high-risk aneurysms, respectively, our narrow understanding of the pathophysiology of AAAs limits our ability to more effectively manage and perhaps even prevent the occurrence of this highly morbid disease. Over the past couple of decades, there has been considerable interest in exploring the role of autoimmunity as an etiological component of AAA. This review covers the current literature pertaining to this immunological process, focusing on research that highlights the local and systemic immune components found in both human patients and murine models. A better understanding of the autoimmune mechanisms in the pathogenesis of AAAs can pave the way to novel and improved treatment strategies in this patient population.
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Affiliation(s)
- Tiffany W. Chang
- Department of Surgery, Indiana University School of Medicine, Indianapolis, Indiana; and
| | - Adam S. A. Gracon
- Department of Surgery, Indiana University School of Medicine, Indianapolis, Indiana; and
| | - Michael P. Murphy
- Department of Surgery, Indiana University School of Medicine, Indianapolis, Indiana; and
| | - David S. Wilkes
- Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana
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40
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Zhang L, Wang Y. B lymphocytes in abdominal aortic aneurysms. Atherosclerosis 2015; 242:311-7. [PMID: 26233918 DOI: 10.1016/j.atherosclerosis.2015.07.036] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2015] [Revised: 06/29/2015] [Accepted: 07/20/2015] [Indexed: 01/13/2023]
Abstract
Abdominal aortic aneurysm (AAA) is a progressive inflammatory disease of the artery walls. Immune cells, including B lymphocytes, are implicated in the pathogenesis of AAA through interconnected mechanisms. Many studies have shown that compared with normal abdominal aortic tissue, the amount of B lymphocytes that infiltrate the adventitia of AAAs was significantly higher. Activated B lymphocytes promote AAA by producing immunoglobulins, cytokines, and matrix metalloproteinases (MMPs), resulting in the activation of macrophages, mast cells (MCs) and complement pathways. Finally, all of these factors lead to the degradation of collagen and matrix proteins and to aortic wall remodeling, which are hallmarks of AAA. However, few studies focus on the relative function of B cells, and their precise mechanisms in AAA remain unclear. Thus, we summarize the current knowledge on the role of B cells in AAA and offer recommendations for further investigation of preventing the progression of AAA.
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Affiliation(s)
- Lili Zhang
- Department of Cardiology, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200080, China
| | - Yi Wang
- Department of Cardiology, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200080, China.
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41
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Zhou Y, Wu W, Lindholt JS, Sukhova GK, Libby P, Yu X, Shi GP. Regulatory T cells in human and angiotensin II-induced mouse abdominal aortic aneurysms. Cardiovasc Res 2015; 107:98-107. [PMID: 25824145 PMCID: PMC4560044 DOI: 10.1093/cvr/cvv119] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2014] [Revised: 03/07/2015] [Accepted: 03/19/2015] [Indexed: 01/02/2023] Open
Abstract
AIMS Regulatory T cells (Tregs) protect mice from angiotensin II (Ang-II)-induced abdominal aortic aneurysms (AAA). This study tested whether AAA patients are Treg-insufficient and the Treg molecular mechanisms that control AAA pathogenesis. METHODS AND RESULTS ELISA determined the Foxp3 concentration in blood cell lysates from 485 AAA patients and 204 age- and sex-matched controls. AAA patients exhibited lower blood cell Foxp3 expression than controls (P < 0.0001). Pearson's correlation test demonstrated a significant but negative correlation between Foxp3 and AAA annual expansion rate before (r = -0.147, P = 0.007) and after (r = -0.153, P = 0.006) adjustment for AAA risk factors. AAA in apolipoprotein E-deficient (Apoe(-/-)) mice that received different doses of Ang-II exhibited a negative correlation of lesion Foxp3(+) Treg numbers with AAA size (r = -0.883, P < 0.0001). Adoptive transfer of Tregs from wild-type (WT) and IL10-deficient (Il10(-/-)) mice increased AAA lesion Treg content, but only WT mice Tregs reduced AAA size, AAA incidence, blood pressure, lesion macrophage and CD4(+) and CD8(+) T-cell accumulation, and angiogenesis with concurrent increase of lesion collagen content. Both AAA lesion immunostaining and plasma ELISA demonstrated that adoptive transfer of WT Tregs, but not Il10(-/-) Tregs, reduced the expression of MCP-1. In vitro cell culture and aortic ring assay demonstrated that only Tregs from WT mice, but not those from Il10(-/-) mice, reduced macrophage MCP-1 secretion, macrophage and vascular cell protease expression and activity, and aortic ring microvessel formation. CONCLUSION This study supports a protective role of Tregs in human and experimental AAA by releasing IL10 to suppress inflammatory cell chemotaxis, arterial wall remodelling, and angiogenesis.
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Affiliation(s)
- Yi Zhou
- Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, 77 Avenue Louis Pasteur, NRB-7, Boston, MA 02115, USA Department of Nephrology, First Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510080, China
| | - Wenxue Wu
- Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, 77 Avenue Louis Pasteur, NRB-7, Boston, MA 02115, USA College of Veterinary Medicine, China Agriculture University, Beijing 100193, China
| | - Jes S Lindholt
- Elitary Research Centre of Individualized Medicine in Arterial Diseases, Department of Cardiothoracic and Vascular Surgery, University Hospital of Odense, Odense DK-5000, Denmark
| | - Galina K Sukhova
- Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, 77 Avenue Louis Pasteur, NRB-7, Boston, MA 02115, USA
| | - Peter Libby
- Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, 77 Avenue Louis Pasteur, NRB-7, Boston, MA 02115, USA
| | - Xueqing Yu
- Department of Nephrology, First Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510080, China
| | - Guo-Ping Shi
- Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, 77 Avenue Louis Pasteur, NRB-7, Boston, MA 02115, USA
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Parvizi M, Harmsen MC. Therapeutic Prospect of Adipose-Derived Stromal Cells for the Treatment of Abdominal Aortic Aneurysm. Stem Cells Dev 2015; 24:1493-505. [DOI: 10.1089/scd.2014.0517] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Affiliation(s)
- Mojtaba Parvizi
- Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Martin C. Harmsen
- Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
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Dale MA, Ruhlman MK, Baxter BT. Inflammatory cell phenotypes in AAAs: their role and potential as targets for therapy. Arterioscler Thromb Vasc Biol 2015; 35:1746-55. [PMID: 26044582 DOI: 10.1161/atvbaha.115.305269] [Citation(s) in RCA: 173] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2015] [Accepted: 05/11/2015] [Indexed: 02/06/2023]
Abstract
Abdominal aortic aneurysms (AAAs) are characterized by chronic inflammatory cell infiltration. AAA is typically an asymptomatic disease and caused ≈15 000 deaths annually in the United States. Previous studies have examined both human and murine aortic tissue for the presence of various inflammatory cell types. Studies show that in both human and experimental AAAs, prominent inflammatory cell infiltration, such as CD4(+) T cells and macrophages, occurs in the damaged aortic wall. These cells have the ability to undergo phenotypic modulation based on microenvironmental cues, potentially influencing disease progression. Proinflammatory CD4(+) T cells and classically activated macrophages dominate the landscape of aortic infiltrates. The skew to proinflammatory phenotypes alters disease progression and plays a role in causing chronic inflammation. The local cytokine production and presence of inflammatory mediators, such as extracellular matrix breakdown products, influence the uneven balance of the inflammatory infiltrate phenotypes. Understanding and developing new strategies that target the proinflammatory phenotype could provide useful therapeutic targets for a disease with no current pharmacological intervention.
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Affiliation(s)
- Matthew A Dale
- From the Department of Pathology and Microbiology (M.A.D.) and Department of Surgery, University of Nebraska Medical Center, Omaha (M.A.D., M.K.R., B.T.B.)
| | - Melissa K Ruhlman
- From the Department of Pathology and Microbiology (M.A.D.) and Department of Surgery, University of Nebraska Medical Center, Omaha (M.A.D., M.K.R., B.T.B.)
| | - B Timothy Baxter
- From the Department of Pathology and Microbiology (M.A.D.) and Department of Surgery, University of Nebraska Medical Center, Omaha (M.A.D., M.K.R., B.T.B.)
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Liao M, Liu CL, Lv BJ, Zhang JY, Cheng L, Cheng X, Lindholt JS, Rasmussen LM, Shi GP. Plasma cytokine levels and risks of abdominal aortic aneurysms: A population-based prospective cohort study. Ann Med 2015; 47:245-52. [PMID: 25856542 PMCID: PMC4669056 DOI: 10.3109/07853890.2015.1019916] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND Abdominal aortic aneurysm (AAA) is characterized by inflammatory cell accumulation in AAA lesions that produce inflammatory cytokines and advance its pathogenesis. Peripheral cytokines may predict the degree or risk of AAA. METHODS AND RESULTS ELISA determined plasma interleukin-6 (IL6), IL10, IL17A, IFN-γ, and C-reactive protein (CRP) from 476 AAA patients and 200 controls. AAA patients had lower IL6, IFN-γ, IL10, IL17A, and higher CRP than controls. IL10 correlated positively with IFN-γ, IL17A, or IL6, but not CRP in control or AAA populations. IL10 associated negatively with systolic blood pressure, whereas CRP associated positively with diastolic blood pressure and body mass index. CRP was an independent AAA risk factor and correlated positively with aortic diameters before and after adjustments for other risk factors. IFN-γ, IL17A, and CRP correlated positively with cross-sectional AAA area after adjustment. IL10 correlated positively with AAA growth rate before and after adjustment. The risk of death doubled in AAA patients with CRP levels above the median. CONCLUSIONS Reduced IFN-γ, IL10, and IL17A in AAA patients, positive correlations of IFN-γ and IL17A with cross-sectional AAA area, IL10 with AAA growth rate, and IL10 with IFN-γ and IL17A suggest combined Th1, Th2, and Th17 immune responses in human AAAs.
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Affiliation(s)
- Mengyang Liao
- Institute of Cardiology, Union Hospital, Tongji Medical College of Huazhong University of Science and Technology , Wuhan , China
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Mao N, Gu T, Shi E, Zhang G, Yu L, Wang C. Phenotypic switching of vascular smooth muscle cells in animal model of rat thoracic aortic aneurysm. Interact Cardiovasc Thorac Surg 2015; 21:62-70. [PMID: 25829166 DOI: 10.1093/icvts/ivv074] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2014] [Accepted: 03/04/2015] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVES To explore if there is phenotypic switching in the vascular smooth muscle cells (vSMCs) of rat thoracic aortic aneurysms and the role it plays in the process of aneurysm formation. METHODS Male SD white rats were assigned randomly to the aneurysm group (AG) and control group (CG). The animal aneurysm model was obtained by soaking the peri-adventitia with porcine pancreatic elastase (PPE). The rats in the CG were given saline to provide contrast. A vascular ultrasound was used to monitor the diameter of the aneurysm. Specimens were stained with haematoxylin and eosin (HE), and α-SMA, SM-MHC, matrix metalloproteinase (MMP)-2 and MMP-9 were detected with immunohistochemistry staining. α-SMA, SM-MHC, MMP-2 and MMP-9 were conducted with western blot. vSMCs taken from the descending aorta of both of the CG and AG were separated and cultured until Passage 3. 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) method were used to analyse cell proliferation. Western blot was used to evaluate MMP-2, MMP-9 expression and flow cytometry was employed to assess cell apoptosis. RESULTS Vascular ultrasound showed obvious dilatation of soaked descending aorta. HE staining showed thickening of thoracic aorta and disarrangement of cells after soaking with PPE. Immunohistochemistry staining showed high expression of MMP-2 and MMP-9 but low expression of SM-MHC and α-SMA in the AG. Tissue western blot analysis of the AG showed that the protein gray value was high in MMP-2 and MMP-9, but low in α-SMA and SM-MHC, which had statistical differences compared with CG with a P-value of <0.05. MTT analysis showed vSMC proliferation activity was higher in the AG than in the CG. Flow cytometry analysis revealed that cell apoptosis between the control and aneurysm groups had significant statistical differences. CONCLUSIONS There is vSMC phenotypic switching in animal models as seen through the rat thoracic aortic aneurysms. This may play an important role in the formation of aneurysms. Our findings are relevant to human aneurysms and may be conducive in the research of aortic aneurysm pathology and treatment.
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Affiliation(s)
- Naihui Mao
- Department of Cardiac Surgery, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Tianxiang Gu
- Department of Cardiac Surgery, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Enyi Shi
- Department of Cardiac Surgery, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Guangwei Zhang
- Department of Cardiac Surgery, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Lei Yu
- Department of Cardiac Surgery, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Chun Wang
- Department of Cardiac Surgery, The First Affiliated Hospital of China Medical University, Shenyang, China
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Wei Z, Wang Y, Zhang K, Liao Y, Ye P, Wu J, Wang Y, Li F, Yao Y, Zhou Y, Liu J. Inhibiting the Th17/IL-17A–Related Inflammatory Responses With Digoxin Confers Protection Against Experimental Abdominal Aortic Aneurysm. Arterioscler Thromb Vasc Biol 2014; 34:2429-38. [DOI: 10.1161/atvbaha.114.304435] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Zhanjie Wei
- From the Department of Cardiovascular Surgery, Union Hospital (Z.W., K.Z., Y.L., P.Y., J.W., Y.W., F.L., J.L.) and Department of Biochemistry and Molecular Biology (Y.W.), Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Department of Cardiology, Central Hospital of Wuhan, Wuhan, China (P.Y.); and Key Laboratory of Molecular Biophysics of the Ministry of Education, Cardio-X Institute, College of Life Science and Technology and Center for Human Genome Research (Y.Y
| | - Yu Wang
- From the Department of Cardiovascular Surgery, Union Hospital (Z.W., K.Z., Y.L., P.Y., J.W., Y.W., F.L., J.L.) and Department of Biochemistry and Molecular Biology (Y.W.), Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Department of Cardiology, Central Hospital of Wuhan, Wuhan, China (P.Y.); and Key Laboratory of Molecular Biophysics of the Ministry of Education, Cardio-X Institute, College of Life Science and Technology and Center for Human Genome Research (Y.Y
| | - Kailun Zhang
- From the Department of Cardiovascular Surgery, Union Hospital (Z.W., K.Z., Y.L., P.Y., J.W., Y.W., F.L., J.L.) and Department of Biochemistry and Molecular Biology (Y.W.), Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Department of Cardiology, Central Hospital of Wuhan, Wuhan, China (P.Y.); and Key Laboratory of Molecular Biophysics of the Ministry of Education, Cardio-X Institute, College of Life Science and Technology and Center for Human Genome Research (Y.Y
| | - Yaohang Liao
- From the Department of Cardiovascular Surgery, Union Hospital (Z.W., K.Z., Y.L., P.Y., J.W., Y.W., F.L., J.L.) and Department of Biochemistry and Molecular Biology (Y.W.), Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Department of Cardiology, Central Hospital of Wuhan, Wuhan, China (P.Y.); and Key Laboratory of Molecular Biophysics of the Ministry of Education, Cardio-X Institute, College of Life Science and Technology and Center for Human Genome Research (Y.Y
| | - Ping Ye
- From the Department of Cardiovascular Surgery, Union Hospital (Z.W., K.Z., Y.L., P.Y., J.W., Y.W., F.L., J.L.) and Department of Biochemistry and Molecular Biology (Y.W.), Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Department of Cardiology, Central Hospital of Wuhan, Wuhan, China (P.Y.); and Key Laboratory of Molecular Biophysics of the Ministry of Education, Cardio-X Institute, College of Life Science and Technology and Center for Human Genome Research (Y.Y
| | - Jie Wu
- From the Department of Cardiovascular Surgery, Union Hospital (Z.W., K.Z., Y.L., P.Y., J.W., Y.W., F.L., J.L.) and Department of Biochemistry and Molecular Biology (Y.W.), Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Department of Cardiology, Central Hospital of Wuhan, Wuhan, China (P.Y.); and Key Laboratory of Molecular Biophysics of the Ministry of Education, Cardio-X Institute, College of Life Science and Technology and Center for Human Genome Research (Y.Y
| | - Yang Wang
- From the Department of Cardiovascular Surgery, Union Hospital (Z.W., K.Z., Y.L., P.Y., J.W., Y.W., F.L., J.L.) and Department of Biochemistry and Molecular Biology (Y.W.), Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Department of Cardiology, Central Hospital of Wuhan, Wuhan, China (P.Y.); and Key Laboratory of Molecular Biophysics of the Ministry of Education, Cardio-X Institute, College of Life Science and Technology and Center for Human Genome Research (Y.Y
| | - Feifei Li
- From the Department of Cardiovascular Surgery, Union Hospital (Z.W., K.Z., Y.L., P.Y., J.W., Y.W., F.L., J.L.) and Department of Biochemistry and Molecular Biology (Y.W.), Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Department of Cardiology, Central Hospital of Wuhan, Wuhan, China (P.Y.); and Key Laboratory of Molecular Biophysics of the Ministry of Education, Cardio-X Institute, College of Life Science and Technology and Center for Human Genome Research (Y.Y
| | - Yufeng Yao
- From the Department of Cardiovascular Surgery, Union Hospital (Z.W., K.Z., Y.L., P.Y., J.W., Y.W., F.L., J.L.) and Department of Biochemistry and Molecular Biology (Y.W.), Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Department of Cardiology, Central Hospital of Wuhan, Wuhan, China (P.Y.); and Key Laboratory of Molecular Biophysics of the Ministry of Education, Cardio-X Institute, College of Life Science and Technology and Center for Human Genome Research (Y.Y
| | - Yanzhao Zhou
- From the Department of Cardiovascular Surgery, Union Hospital (Z.W., K.Z., Y.L., P.Y., J.W., Y.W., F.L., J.L.) and Department of Biochemistry and Molecular Biology (Y.W.), Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Department of Cardiology, Central Hospital of Wuhan, Wuhan, China (P.Y.); and Key Laboratory of Molecular Biophysics of the Ministry of Education, Cardio-X Institute, College of Life Science and Technology and Center for Human Genome Research (Y.Y
| | - Jinping Liu
- From the Department of Cardiovascular Surgery, Union Hospital (Z.W., K.Z., Y.L., P.Y., J.W., Y.W., F.L., J.L.) and Department of Biochemistry and Molecular Biology (Y.W.), Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Department of Cardiology, Central Hospital of Wuhan, Wuhan, China (P.Y.); and Key Laboratory of Molecular Biophysics of the Ministry of Education, Cardio-X Institute, College of Life Science and Technology and Center for Human Genome Research (Y.Y
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B2 cells suppress experimental abdominal aortic aneurysms. THE AMERICAN JOURNAL OF PATHOLOGY 2014; 184:3130-41. [PMID: 25194661 DOI: 10.1016/j.ajpath.2014.07.006] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2014] [Revised: 06/16/2014] [Accepted: 07/10/2014] [Indexed: 12/11/2022]
Abstract
Recent reports of rupture in patients with abdominal aortic aneurysm (AAA) receiving B-cell depletion therapy highlight the importance of understanding the role of B cells (B1 and B2 subsets) in the development of AAA. We hypothesized that B2 cells aggravate experimental aneurysm formation. The IHC staining revealed infiltration of B cells in the aorta of wild-type (C57BL/6) mice at day 7 after elastase perfusion and persisted through day 21. Quantification of immune cell types using flow cytometry at day 14 showed significantly greater infiltration of mononuclear cells, including B cells (B2: 93% of total B cells) and T cells in elastase-perfused aortas compared with saline-perfused or normal aortas. muMT (mature B-cell deficient) mice were prone to AAA formation similar to wild-type mice in two different experimental AAA models. Contradicting our hypothesis, adoptive transfer of B2 cells suppressed AAA formation (102.0% ± 7.3% versus 75.2% ± 5.5%; P < 0.05) with concomitant increase in the splenic regulatory T cell (0.24% ± 0.03% versus 0.92% ± 0.23%; P < 0.05) and decrease in aortic infiltration of mononuclear cells. Our data suggest that B2 cells constitute the largest population of B cells in experimental AAA. Furthermore, B2 cells, in the absence of other B-cell subsets, increase splenic regulatory T-cell population and suppress AAA formation.
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T lymphocytes and aortic aneurysms. SCIENCE CHINA-LIFE SCIENCES 2014; 57:795-801. [DOI: 10.1007/s11427-014-4699-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2014] [Accepted: 06/19/2014] [Indexed: 11/27/2022]
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Hagenaars JCJP, Koning OHJ, van den Haak RFF, Verhoeven BAN, Renders NHM, Hermans MHA, Wever PC, van Suylen RJ. Histological characteristics of the abdominal aortic wall in patients with vascular chronic Q fever. Int J Exp Pathol 2014; 95:282-9. [PMID: 24953727 DOI: 10.1111/iep.12086] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2014] [Accepted: 04/26/2014] [Indexed: 12/28/2022] Open
Abstract
The aim of this study was to describe specific histological findings of the Coxiella burnetii-infected aneurysmal abdominal aortic wall. Tissue samples of the aneurysmal abdominal aortic wall from seven patients with chronic Q fever and 15 patients without evidence of Q fever infection were analysed and compared. Chronic Q fever was diagnosed using serology and tissue PCR analysis. Histological sections were stained using haematoxylin and eosin staining, Elastica van Gieson staining and immunohistochemical staining for macrophages (CD68), T lymphocytes (CD3), T lymphocyte subsets (CD4 and CD8) and B lymphocytes (CD20). Samples were scored by one pathologist, blinded for Q fever status, using a standard score form. Seven tissue samples from patients with chronic Q fever and 15 tissue samples from patients without Q fever were collected. Four of seven chronic Q fever samples showed a necrotizing granulomatous response of the vascular wall, which was characterized by necrotic core of the arteriosclerotic plaque (P = 0.005) and a presence of high numbers of macrophages in the adventitia (P = 0.007) distributed in typical palisading formation (P = 0.005) and surrounded by the presence of high numbers of T lymphocytes located diffusely in media and adventitia. Necrotizing granulomas are a histological finding in the C. burnetii-infected aneurysmal abdominal aortic wall. Chronic Q fever should be included in the list of infectious diseases with necrotizing granulomatous response, such as tuberculosis, cat scratch disease and syphilis.
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Lu S, White JV, Lin WL, Zhang X, Solomides C, Evans K, Ntaoula N, Nwaneshiudu I, Gaughan J, Monos DS, Oleszak EL, Platsoucas CD. Aneurysmal lesions of patients with abdominal aortic aneurysm contain clonally expanded T cells. THE JOURNAL OF IMMUNOLOGY 2014; 192:4897-912. [PMID: 24752442 DOI: 10.4049/jimmunol.1301009] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Abdominal aortic aneurysm (AAA) is a common disease with often life-threatening consequences. This vascular disorder is responsible for 1-2% of all deaths in men aged 65 years or older. Autoimmunity may be responsible for the pathogenesis of AAA. Although it is well documented that infiltrating T cells are essentially always present in AAA lesions, little is known about their role in the initiation and/or progression of the disease. To determine whether T cells infiltrating AAA lesions contain clonally expanded populations of T cells, we amplified β-chain TCR transcripts by the nonpalindromic adaptor-PCR/Vβ-specific PCR and/or Vβ-specific PCR, followed by cloning and sequencing. We report in this article that aortic abdominal aneurysmal lesions from 8 of 10 patients with AAA contained oligoclonal populations of T cells. Multiple identical copies of β-chain TCR transcripts were identified in these patients. These clonal expansions are statistically significant. These results demonstrate that αβ TCR(+) T lymphocytes infiltrating aneurysmal lesions of patients with AAA have undergone proliferation and clonal expansion in vivo at the site of the aneurysmal lesion, in response to unidentified self- or nonself Ags. This evidence supports the hypothesis that AAA is a specific Ag-driven T cell disease.
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Affiliation(s)
- Song Lu
- Department of Microbiology and Immunology, Temple University School of Medicine, Philadelphia, PA 19140
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