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Liu H, Zhao Y, Zhao G, Deng Y, Chen YE, Zhang J. SWI/SNF Complex in Vascular Smooth Muscle Cells and Its Implications in Cardiovascular Pathologies. Cells 2024; 13:168. [PMID: 38247859 PMCID: PMC10814623 DOI: 10.3390/cells13020168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 01/09/2024] [Accepted: 01/12/2024] [Indexed: 01/23/2024] Open
Abstract
Mature vascular smooth muscle cells (VSMC) exhibit a remarkable degree of plasticity, a characteristic that has intrigued cardiovascular researchers for decades. Recently, it has become increasingly evident that the chromatin remodeler SWItch/Sucrose Non-Fermentable (SWI/SNF) complex plays a pivotal role in orchestrating chromatin conformation, which is critical for gene regulation. In this review, we provide a summary of research related to the involvement of the SWI/SNF complexes in VSMC and cardiovascular diseases (CVD), integrating these discoveries into the current landscape of epigenetic and transcriptional regulation in VSMC. These novel discoveries shed light on our understanding of VSMC biology and pave the way for developing innovative therapeutic strategies in CVD treatment.
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Affiliation(s)
- Hongyu Liu
- Department of Internal Medicine, Cardiovascular Center, University of Michigan Medical Center, 2800 Plymouth Road, Ann Arbor, MI 48109, USA; (H.L.); (Y.Z.)
- Department of Molecular & Integrative Physiology, University of Michigan Medical Center, Ann Arbor, MI 48109, USA
- Department of Vascular Surgery, The Second Xiangya Hospital, Central South University, Changsha 410011, China
| | - Yang Zhao
- Department of Internal Medicine, Cardiovascular Center, University of Michigan Medical Center, 2800 Plymouth Road, Ann Arbor, MI 48109, USA; (H.L.); (Y.Z.)
| | - Guizhen Zhao
- Department of Internal Medicine, Cardiovascular Center, University of Michigan Medical Center, 2800 Plymouth Road, Ann Arbor, MI 48109, USA; (H.L.); (Y.Z.)
| | - Yongjie Deng
- Department of Internal Medicine, Cardiovascular Center, University of Michigan Medical Center, 2800 Plymouth Road, Ann Arbor, MI 48109, USA; (H.L.); (Y.Z.)
| | - Y. Eugene Chen
- Department of Internal Medicine, Cardiovascular Center, University of Michigan Medical Center, 2800 Plymouth Road, Ann Arbor, MI 48109, USA; (H.L.); (Y.Z.)
- Department of Cardiac Surgery, University of Michigan Medical Center, Ann Arbor, MI 48109, USA
| | - Jifeng Zhang
- Department of Internal Medicine, Cardiovascular Center, University of Michigan Medical Center, 2800 Plymouth Road, Ann Arbor, MI 48109, USA; (H.L.); (Y.Z.)
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de Mattos ABM, Ribeiro-Silva JC, Fonseca-Alaniz MH, Valadão IC, da Silva ES, Krieger JE, Miyakawa AA. Cysteine and glycine-rich protein 3 (Crp3) as a critical regulator of elastolysis, inflammation, and smooth muscle cell apoptosis in abdominal aortic aneurysm development. Front Physiol 2023; 14:1252470. [PMID: 38173933 PMCID: PMC10762791 DOI: 10.3389/fphys.2023.1252470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 12/05/2023] [Indexed: 01/05/2024] Open
Abstract
Abdominal aortic aneurysm (AAA) is a life-threatening vascular disease for which surgical or endovascular repair are the only currently available therapeutic strategies. The development of AAA involves the breakdown of elastic fibers (elastolysis), infiltration of inflammatory cells, and apoptosis of smooth muscle cells (SMCs). However, the specific regulators governing these responses remain unknown. We previously demonstrated that Cysteine and glycine-rich protein 3 (Crp3) sensitizes SMCs to apoptosis induced by stretching. Building upon this finding, we aimed to investigate the influence of Crp3 on elastolysis and apoptosis during AAA development. Using the elastase-CaCl2 rat model, we observed an increase in Crp3 expression, aortic diameter, and a reduction in wall thickness in wild type rats. In contrast, Crp3-/- rats exhibited a decreased incidence of AAA, with minimal or no changes in aortic diameter and thickness. Histopathological analysis revealed the absence of SMC apoptosis and degradation of elastic fibers in Crp3-/- rats, accompanied by reduced inflammation and diminished proteolytic capacity in Crp3-/- SMCs and bone marrow-derived macrophages. Collectively, our findings provide evidence that Crp3 plays a crucial role in AAA development by modulating elastolysis, inflammation, and SMC apoptosis. These results underscore the potential significance of Crp3 in the context of AAA progression and offer new insights into therapeutic targets for this disease.
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Affiliation(s)
- Ana Barbosa Marcondes de Mattos
- Laboratorio de Genética e Cardiologia Molecular, Instituto do Coração (InCor), Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Joao Carlos Ribeiro-Silva
- Laboratorio de Genética e Cardiologia Molecular, Instituto do Coração (InCor), Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Miriam Helena Fonseca-Alaniz
- Laboratorio de Genética e Cardiologia Molecular, Instituto do Coração (InCor), Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Iuri Cordeiro Valadão
- Laboratorio de Genética e Cardiologia Molecular, Instituto do Coração (InCor), Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Erasmo Simão da Silva
- Divisão de Cirurgia Vascular e Endovascular, Departamento de Cirurgia, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Jose Eduardo Krieger
- Laboratorio de Genética e Cardiologia Molecular, Instituto do Coração (InCor), Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Ayumi Aurea Miyakawa
- Laboratorio de Genética e Cardiologia Molecular, Instituto do Coração (InCor), Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
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López-Sanz L, Bernal S, Jiménez-Castilla L, Pardines M, Hernández-García A, Blanco-Colio L, Martín-Ventura JL, Gómez Guerrero C. The presence of activating IgG Fc receptors in macrophages aggravates the development of experimental abdominal aortic aneurysm. CLINICA E INVESTIGACION EN ARTERIOSCLEROSIS : PUBLICACION OFICIAL DE LA SOCIEDAD ESPANOLA DE ARTERIOSCLEROSIS 2023; 35:185-194. [PMID: 36737385 DOI: 10.1016/j.arteri.2022.12.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 12/16/2022] [Accepted: 12/22/2022] [Indexed: 02/04/2023]
Abstract
INTRODUCTION Abdominal aortic aneurysm (AAA) is a multifactorial, degenerative disease characterized by progressive aortic dilation and chronic activation of inflammation, proteolytic activity, and oxidative stress in the aortic wall. The immune response triggered by antibodies against antigens present in the vascular wall participates in the formation and progression of AAA through mechanisms not completely understood. This work analyses the function of specific IgG receptors (FcγR), especially those expressed by monocytes/macrophages, in the development of experimental AAA. METHODS In the elastase-induced AAA model, the abdominal aortas from wildtype and FcγR deficient mice with/without macrophage adoptive transfer were analysed by histology and quantitative PCR. In vitro, mouse macrophages were transfected with RNA interference of FcγRIV/CD16.2 or treated with Syk kinase inhibitor before stimulation with IgG immune complexes. RESULTS Macrophage adoptive transfer in FcγR deficient mice increased the susceptibility to AAA development. Mice receiving macrophages with functional FcγR exhibited higher aortic diameter increase, higher content of macrophages and B lymphocytes, and upregulated expression of chemokine CCL2, cytokines (TNF-α and IL-17), metalloproteinase MMP2, prooxidant enzyme NADPH oxidase-2, and the isoforms FcγRIII/CD16 and FcγRIV/CD16.2. In vitro, both FcγRIV/CD16.2 gene silencing and Syk inhibition reduced cytokines and reactive oxygen species production induced by immune complexes in macrophages. CONCLUSIONS Activation of macrophage FcγR contributes to AAA development by inducing mediators of inflammation, proteolysis, and oxidative stress. Modulation of FcγR or effector molecules may represent a potential target for AAA treatment.
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Affiliation(s)
- Laura López-Sanz
- Laboratorio de Patología Vascular y Renal, Instituto de Investigación Sanitaria-Fundación Jiménez Díaz, Universidad Autónoma de Madrid (IIS-FJD/UAM), Madrid, España; Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas (CIBERDEM), Madrid, España
| | - Susana Bernal
- Laboratorio de Patología Vascular y Renal, Instituto de Investigación Sanitaria-Fundación Jiménez Díaz, Universidad Autónoma de Madrid (IIS-FJD/UAM), Madrid, España; Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas (CIBERDEM), Madrid, España
| | - Luna Jiménez-Castilla
- Laboratorio de Patología Vascular y Renal, Instituto de Investigación Sanitaria-Fundación Jiménez Díaz, Universidad Autónoma de Madrid (IIS-FJD/UAM), Madrid, España; Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas (CIBERDEM), Madrid, España
| | - Marisa Pardines
- Laboratorio de Patología Vascular y Renal, Instituto de Investigación Sanitaria-Fundación Jiménez Díaz, Universidad Autónoma de Madrid (IIS-FJD/UAM), Madrid, España
| | - Ana Hernández-García
- Laboratorio de Patología Vascular y Renal, Instituto de Investigación Sanitaria-Fundación Jiménez Díaz, Universidad Autónoma de Madrid (IIS-FJD/UAM), Madrid, España
| | - Luis Blanco-Colio
- Laboratorio de Patología Vascular y Renal, Instituto de Investigación Sanitaria-Fundación Jiménez Díaz, Universidad Autónoma de Madrid (IIS-FJD/UAM), Madrid, España; Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Madrid, España
| | - José Luis Martín-Ventura
- Laboratorio de Patología Vascular y Renal, Instituto de Investigación Sanitaria-Fundación Jiménez Díaz, Universidad Autónoma de Madrid (IIS-FJD/UAM), Madrid, España; Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Madrid, España
| | - Carmen Gómez Guerrero
- Laboratorio de Patología Vascular y Renal, Instituto de Investigación Sanitaria-Fundación Jiménez Díaz, Universidad Autónoma de Madrid (IIS-FJD/UAM), Madrid, España; Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas (CIBERDEM), Madrid, España.
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Reutersberg B, Metschl S, Salvermoser M, Eckstein HH, Knappich C, Maegdefessel L, Jaroslav P, Busch A. CXCR4 - a possible serum marker for risk stratification of abdominal aortic aneurysms. VASA 2023; 52:124-132. [PMID: 36519232 DOI: 10.1024/0301-1526/a001049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Background: Abdominal aortic aneurysm (AAA) rupture is still associated with a mortality rate of 80-90%. Imaging techniques or molecular fingerprinting for patient-specific risk stratification to identify pending rupture are still lacking. The chemokine (C-X-C motif) receptor (CXCR4) activation by CXCL12 ligand has been identified as a marker of inflammation and atherosclerosis, associated with AAA. Both are highly expressed in the aortic aneurysm wall. However, it is still unclear whether different expression levels of CXCR4 and CXCL12 can distinguish ruptured AAAs (rAAA) from intact AAAs (iAAA). Patients and methods: Abdominal aortic tissue samples (rAAA: n=29; iAAA: n=54) were excised during open aortic repair. Corresponding serum samples from these patients (n=9 from rAAAs; n=47 from iAAA) were drawn pre-surgery. Healthy aortic tissue samples (n=8) obtained from adult kidney donors during transplantation and serum samples from healthy adult volunteers were used as controls (n=5 each). Results: CXCR4 was mainly expressed in the media of the aneurysmatic tissue. Focal positive staining was also observed in areas of inflammatory infiltrates within the adventitia. In tissue lysates, no significant differences between iAAA, rAAA, and healthy controls were observed upon ELISA analysis. In serum samples, the level of CXCR4 was significantly increased in rAAA by 4-fold compared to healthy controls (p=0.011) and 3.0-fold for rAAA compared to iAAA (p<0.001). Furthermore a significant positive correlation between aortic diameter and serum CXCR4 concentration was found for both, iAAA and rAAA (p=0.042). Univariate logistic regression analysis showed that increased CXCR4 serum concentrations were associated with AAA rupture (OR: 4.28, 95% CI: 1.95-12.1, p=0.001). Conclusions: CXCR4 concentration was significantly increased in serum of rAAA patients and showed a significant correlation with an increased aortic diameter. The level of CXCR4 in serum was associated with a more than 4-fold risk increase for rAAA and thus could possibly serve as a biomarker in the future. However, further validation in larger studies is required.
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Affiliation(s)
- Benedikt Reutersberg
- Department for Vascular and Endovascular Surgery, Munich Vascular Biobank, Munich Aortic Center (MAC), University Hospital Klinikum rechts der Isar, Technical University of Munich, Germany.,Department for Vascular Surgery, University Hospital Zurich, Switzerland
| | - Susanne Metschl
- Department for Vascular and Endovascular Surgery, Munich Vascular Biobank, Munich Aortic Center (MAC), University Hospital Klinikum rechts der Isar, Technical University of Munich, Germany
| | - Michael Salvermoser
- Department for Vascular and Endovascular Surgery, Munich Vascular Biobank, Munich Aortic Center (MAC), University Hospital Klinikum rechts der Isar, Technical University of Munich, Germany.,Department of Pulmonary and Allergy, Dr. von Hauner Children's Hospital, LMU University of Munich, Germany
| | - Hans-Henning Eckstein
- Department for Vascular and Endovascular Surgery, Munich Vascular Biobank, Munich Aortic Center (MAC), University Hospital Klinikum rechts der Isar, Technical University of Munich, Germany
| | - Christoph Knappich
- Department for Vascular and Endovascular Surgery, Munich Vascular Biobank, Munich Aortic Center (MAC), University Hospital Klinikum rechts der Isar, Technical University of Munich, Germany
| | - Lars Maegdefessel
- Department for Vascular and Endovascular Surgery, Munich Vascular Biobank, Munich Aortic Center (MAC), University Hospital Klinikum rechts der Isar, Technical University of Munich, Germany
| | - Pelisek Jaroslav
- Department for Vascular and Endovascular Surgery, Munich Vascular Biobank, Munich Aortic Center (MAC), University Hospital Klinikum rechts der Isar, Technical University of Munich, Germany.,Department for Vascular Surgery, University Hospital Zurich, Switzerland
| | - Albert Busch
- Department for Vascular and Endovascular Surgery, Munich Vascular Biobank, Munich Aortic Center (MAC), University Hospital Klinikum rechts der Isar, Technical University of Munich, Germany.,Division of Vascular and Endovascular Surgery, Department for Visceral-, Thoracic and Vascular Surgery, Medical Faculty Carl Gustav Carus and University Hospital, Technische Universität Dresden, Germany
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Milk Fat Globule Epidermal Growth Factor VIII Fragment Medin in Age-Associated Arterial Adverse Remodeling and Arterial Disease. Cells 2023; 12:cells12020253. [PMID: 36672188 PMCID: PMC9857039 DOI: 10.3390/cells12020253] [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: 10/24/2022] [Revised: 12/28/2022] [Accepted: 01/03/2023] [Indexed: 01/11/2023] Open
Abstract
Medin, a small 50-amino acid peptide, is an internal cleaved product from the second discoidin domain of milk fat globule epidermal growth factor VIII (MFG-E8) protein. Medin has been reported as the most common amylogenic protein in the upper part of the arterial system, including aortic, temporal, and cerebral arterial walls in the elderly. Medin has a high affinity to elastic fibers and is closely associated with arterial degenerative inflammation, elastic fiber fragmentation, calcification, and amyloidosis. In vitro, treating with the medin peptide promotes the inflammatory phenotypic shift of both endothelial cells and vascular smooth muscle cells. In vitro, ex vivo, and in vivo studies demonstrate that medin enhances the abundance of reactive oxygen species and reactive nitrogen species produced by both endothelial cells and vascular smooth muscle cells and promotes vascular endothelial dysfunction and arterial stiffening. Immunostaining and immunoblotting analyses of human samples indicate that the levels of medin are increased in the pathogenesis of aortic aneurysm/dissection, temporal arteritis, and cerebrovascular dementia. Thus, medin peptide could be targeted as a biomarker diagnostic tool or as a potential molecular approach to curbing the arterial degenerative inflammatory remodeling that accompanies aging and disease.
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Zhao G, Zhao Y, Lu H, Chang Z, Liu H, Wang H, Liang W, Liu Y, Zhu T, Rom O, Guo Y, Chang L, Yang B, Garcia-Barrio MT, Lin JD, Chen YE, Zhang J. BAF60c prevents abdominal aortic aneurysm formation through epigenetic control of vascular smooth muscle cell homeostasis. J Clin Invest 2022; 132:e158309. [PMID: 36066968 PMCID: PMC9621131 DOI: 10.1172/jci158309] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Accepted: 09/01/2022] [Indexed: 01/19/2023] Open
Abstract
Abdominal aortic aneurysm (AAA) is a life-threatening vascular disease. BAF60c, a unique subunit of the SWItch/sucrose nonfermentable (SWI/SNF) chromatin remodeling complex, is critical for cardiac and skeletal myogenesis, yet little is known about its function in the vasculature and, specifically, in AAA pathogenesis. Here, we found that BAF60c was downregulated in human and mouse AAA tissues, with primary staining to vascular smooth muscle cells (VSMCs), confirmed by single-cell RNA-sequencing. In vivo studies revealed that VSMC-specific knockout of Baf60c significantly aggravated both angiotensin II- (Ang II-) and elastase-induced AAA formation in mice, with a significant increase in elastin degradation, inflammatory cell infiltration, VSMC phenotypic switch, and apoptosis. In vitro studies showed that BAF60c knockdown in VSMCs resulted in loss of contractile phenotype, increased VSMC inflammation, and apoptosis. Mechanistically, we demonstrated that BAF60c preserved VSMC contractile phenotype by strengthening serum response factor (SRF) association with its coactivator P300 and the SWI/SNF complex and suppressing VSMC inflammation by promoting a repressive chromatin state of NF-κB target genes as well as preventing VSMC apoptosis through transcriptional activation of KLF5-dependent B cell lymphoma 2 (BCL2) expression. Our identification of the essential role of BAF60c in preserving VSMC homeostasis expands its therapeutic potential in preventing and treating AAA.
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Affiliation(s)
- Guizhen Zhao
- Frankel Cardiovascular Center, Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan, USA
| | - Yang Zhao
- Frankel Cardiovascular Center, Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan, USA
| | - Haocheng Lu
- Frankel Cardiovascular Center, Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan, USA
| | - Ziyi Chang
- Frankel Cardiovascular Center, Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan, USA
| | - Hongyu Liu
- Frankel Cardiovascular Center, Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan, USA
| | - Huilun Wang
- Frankel Cardiovascular Center, Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan, USA
| | - Wenying Liang
- Frankel Cardiovascular Center, Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan, USA
| | - Yuhao Liu
- Frankel Cardiovascular Center, Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan, USA
| | - Tianqing Zhu
- Frankel Cardiovascular Center, Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan, USA
| | - Oren Rom
- Frankel Cardiovascular Center, Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan, USA
- Department of Pathology and Translational Pathobiology, Louisiana State University Health Science Center–Shreveport, Shreveport, Louisiana, USA
| | - Yanhong Guo
- Frankel Cardiovascular Center, Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan, USA
| | - Lin Chang
- Frankel Cardiovascular Center, Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan, USA
| | - Bo Yang
- Department of Cardiac Surgery, University of Michigan Medical Center, Ann Arbor, Michigan, USA
| | - Minerva T. Garcia-Barrio
- Frankel Cardiovascular Center, Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan, USA
| | - Jiandie D. Lin
- Life Sciences Institute and Department of Cell & Developmental Biology, University of Michigan, Ann Arbor, Michigan, USA
| | - Y. Eugene Chen
- Frankel Cardiovascular Center, Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan, USA
| | - Jifeng Zhang
- Frankel Cardiovascular Center, Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan, USA
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Chen Y, Xu X, Chen Z, Huang B, Wang X, Fan X. DNA methylation alternation in Stanford- A acute aortic dissection. BMC Cardiovasc Disord 2022; 22:455. [PMID: 36309656 PMCID: PMC9618190 DOI: 10.1186/s12872-022-02882-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Accepted: 09/26/2022] [Indexed: 11/29/2022] Open
Abstract
Background Acute aortic dissection (AAD) is a life-threatening cardiovascular disease. Recent studies have shown that DNA methylation may be associated with the pathological mechanism of AAD, but the panorama of DNA methylation needs to be explored. Methods DNA methylation patterns were screened using Infinium Human Methylation 450 K BeadChip in the aortic tissues from 4 patients with Stanford-A AAD and 4 controls. Gene enrichment was analyzed by Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway and gene ontology (GO). DNA methylation levels of candidate genes were determined by pyrosequencing in the replication cohort including 16 patients with AAD and 7 controls. Protein expression level of candidate gene was assessed by Western blot. Results A total of 589 differentially methylated positions including 315 hypomethylated and 274 hypermethylated positions were found in AAD group. KEGG analysis demonstrated that differentially methylated position-associated genes were enriched in MAPK signaling pathway, TNF signaling pathway and apoptosis pathway, et al. GO analysis demonstrated that differentially methylated position-associated genes were enriched in protein binding, angiogenesis and heart development et al. The differential DNA methylation in five key genes, including Fas, ANGPT2, DUSP6, FARP1 and CARD6, was authenticated in the independent replication cohort. The protein expression level of the Fas was increased by 1.78 times, indicating the possible role of DNA methylation in regulation of gene expression. Conclusion DNA methylation was markedly changed in the aortic tissues of Stanford-A AAD and associated with gene dysregulation, involved in AAD progression. Supplementary Information The online version contains supplementary material available at10.1186/s12872-022-02882-5.
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LncRNA GAS5 promotes abdominal aortic aneurysm formation through regulating the miR-185-5p/ADCY7 axis. Anticancer Drugs 2021; 33:225-234. [DOI: 10.1097/cad.0000000000001090] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Navas-Acien A, Domingo-Relloso A, Subedi P, Riffo-Campos AL, Xia R, Gomez L, Haack K, Goldsmith J, Howard BV, Best LG, Devereux R, Tauqeer A, Zhang Y, Fretts AM, Pichler G, Levy D, Vasan RS, Baccarelli AA, Herreros-Martinez M, Tang WY, Bressler J, Fornage M, Umans JG, Tellez-Plaza M, Fallin MD, Zhao J, Cole SA. Blood DNA Methylation and Incident Coronary Heart Disease: Evidence From the Strong Heart Study. JAMA Cardiol 2021; 6:1237-1246. [PMID: 34347013 DOI: 10.1001/jamacardio.2021.2704] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Importance American Indian communities experience a high burden of coronary heart disease (CHD). Strategies are needed to identify individuals at risk and implement preventive interventions. Objective To investigate the association of blood DNA methylation (DNAm) with incident CHD using a large number of methylation sites (cytosine-phosphate-guanine [CpG]) in a single model. Design, Setting, and Participants This prospective study, including a discovery cohort (the Strong Heart Study [SHS]) and 4 additional cohorts (the Women's Health Initiative [WHI], the Framingham Heart Study [FHS], the Atherosclerosis Risk in Communities Study ([ARIC]-Black, and ARIC-White), evaluated 12 American Indian communities in 4 US states; African American women, Hispanic women, and White women throughout the US; White men and White women from Massachusetts; and Black men and women and White men and women from 4 US communities. A total of 2321 men and women (mean [SD] follow-up, 19.1 [9.2] years) were included in the SHS, 1874 women (mean [SD] follow-up, 15.8 [5.9] years) in the WHI, 2128 men and women (mean [SD] follow-up, 7.7 [1.8] years) in the FHS, 2114 men and women (mean [SD] follow-up, 20.9 [7.2] years) in the ARIC-Black, and 931 men and women (mean [SD] follow-up, 20.9 [7.2] years) in the ARIC-White. Data were collected from May 1989 to December 2018 and analyzed from February 2019 to May 2021. Exposure Blood DNA methylation. Main Outcome and Measure Using a high-dimensional time-to-event elastic-net model for the association of 407 224 CpG sites with incident CHD in the SHS (749 events), this study selected the differentially methylated CpG positions (DMPs) selected in the SHS and evaluated them in the WHI (531 events), FHS (143 events), ARIC-Black (350 events), and ARIC-White (121 events) cohorts. Results The median (IQR) age of participants in SHS was 55 (49-62) years, and 1359 participants (58.6%) were women. Elastic-net models selected 505 DMPs associated with incident CHD in the SHS beyond established risk factors, center, blood cell counts, and genetic principal components. Among those DMPs, 33 were commonly selected in 3 or 4 of the other cohorts and the pooled hazard ratios from the standard Cox models were significant at P < .05 for 10 of the DMPs. For example, the hazard ratio (95% CI) for CHD comparing the 90th and 10th percentiles of differentially methylated CpGs was 0.86 (0.78-0.95) for cg16604233 (tagged to COL11A2) and 1.23 (1.08-1.39) for cg09926486 (tagged to FRMD5). Some of the DMPs were consistent in the direction of the association; others showed associations in opposite directions across cohorts. Untargeted independent elastic-net models of CHD showed distinct DMPs, genes, and network of genes in the 5 cohorts. Conclusions and Relevance In this multi-cohort study, blood-based DNAm findings supported an association between a complex blood epigenomic signature and CHD that was largely different across populations.
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Affiliation(s)
- Ana Navas-Acien
- Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, New York
| | - Arce Domingo-Relloso
- Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, New York.,Department of Chronic Diseases Epidemiology, National Center for Epidemiology, Carlos III Health Institute, Madrid, Spain.,Department of Statistics and Operations Research, University of Valencia, Valencia, Spain
| | - Pooja Subedi
- College of Public Health and Health Professions and College of Medicine, University of Florida, Gainesville
| | | | - Rui Xia
- Brown Foundation Institute of Molecular Medicine, McGovern Medical School, University of Texas Health Science Center at Houston, Houston
| | - Lizbeth Gomez
- Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, New York
| | - Karin Haack
- Population Health Program, Texas Biomedical Research Institute, San Antonio
| | - Jeff Goldsmith
- Department of Biostatistics, Columbia University Mailman School of Public Health, New York, New York
| | | | - Lyle G Best
- Missouri Breaks Industries Research Inc, Eagle Butte, South Dakota
| | | | - Ali Tauqeer
- Center for American Indian Health Research, Department of Biostatistics and Epidemiology, The University of Oklahoma Health Sciences Center, Oklahoma City
| | - Ying Zhang
- Center for American Indian Health Research, Department of Biostatistics and Epidemiology, The University of Oklahoma Health Sciences Center, Oklahoma City
| | - Amanda M Fretts
- Department of Epidemiology, University of Washington, Seattle
| | - Gernot Pichler
- Department of Cardiology, Heart Center Clinic Floridsdorf, Vienna, Austria
| | - Daniel Levy
- National Heart, Lung, and Blood Institute's and Boston University's Framingham Heart Study, Framingham, Massachusetts.,Section of Preventive Medicine and Epidemiology and Section of Cardiovascular Medicine, Department of Medicine, Department of Epidemiology, Boston University Schools of Medicine and Public Health, Boston, Massachusetts
| | - Ramachandran S Vasan
- National Heart, Lung, and Blood Institute's and Boston University's Framingham Heart Study, Framingham, Massachusetts.,Section of Preventive Medicine and Epidemiology and Section of Cardiovascular Medicine, Department of Medicine, Department of Epidemiology, Boston University Schools of Medicine and Public Health, Boston, Massachusetts
| | - Andrea A Baccarelli
- Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, New York
| | | | - Wan-Yee Tang
- Department of Occupational and Environmental Health, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Jan Bressler
- Human Genetics Center, Department of Epidemiology, Human Genetics and Environmental Sciences, School of Public Health, University of Texas Health Science Center at Houston, Houston
| | - Myriam Fornage
- Brown Foundation Institute of Molecular Medicine, McGovern Medical School, University of Texas Health Science Center at Houston, Houston.,Human Genetics Center, Department of Epidemiology, Human Genetics and Environmental Sciences, School of Public Health, University of Texas Health Science Center at Houston, Houston
| | - Jason G Umans
- Department of Biostatistics, Columbia University Mailman School of Public Health, New York, New York.,Georgetown-Howard Universities Center for Clinical and Translational Science, Washington, DC
| | - Maria Tellez-Plaza
- Department of Chronic Diseases Epidemiology, National Center for Epidemiology, Carlos III Health Institute, Madrid, Spain
| | - M Daniele Fallin
- Department of Epidemiology, Johns Hopkins University, Baltimore, Maryland.,Department of Mental Health, Johns Hopkins University, Baltimore, Maryland
| | - Jinying Zhao
- College of Public Health and Health Professions and College of Medicine, University of Florida, Gainesville
| | - Shelley A Cole
- Population Health Program, Texas Biomedical Research Institute, San Antonio
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10
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Lopez‐Sanz L, Bernal S, Jimenez‐Castilla L, Prieto I, La Manna S, Gomez‐Lopez S, Blanco‐Colio LM, Egido J, Martin‐Ventura JL, Gomez‐Guerrero C. Fcγ receptor activation mediates vascular inflammation and abdominal aortic aneurysm development. Clin Transl Med 2021; 11:e463. [PMID: 34323424 PMCID: PMC8255062 DOI: 10.1002/ctm2.463] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2021] [Revised: 05/24/2021] [Accepted: 05/30/2021] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Abdominal aortic aneurysm (AAA), a degenerative vascular pathology characterized by permanent dilation of the aorta, is considered a chronic inflammatory disease involving innate/adaptive immunity. However, the functional role of antibody-dependent immune response against antigens present in the damaged vessel remains unresolved. We hypothesized that engagement of immunoglobulin G (IgG) Fc receptors (FcγR) by immune complexes (IC) in the aortic wall contributes to AAA development. We therefore evaluated FcγR expression in AAA lesions and analysed whether inhibition of FcγR signaling molecules (γ-chain and Syk kinase) influences AAA formation in mice. METHODS FcγR gene/protein expression was assessed in human and mouse AAA tissues. Experimental AAA was induced by aortic elastase perfusion in wild-type (WT) mice and γ-chain knockout (γKO) mice (devoid of activating FcγR) in combination with macrophage adoptive transfer or Syk inhibitor treatment. To verify the mechanisms of FcγR in vitro, vascular smooth muscle cells (VSMC) and macrophages were stimulated with IgG IC. RESULTS FcγR overexpression was detected in adventitia and media layers of human and mouse AAA. Elastase-perfused γKO mice exhibited a decrease in AAA incidence, aortic dilation, elastin degradation, and VSMC loss. This was associated with (1) reduced infiltrating leukocytes and immune deposits in AAA lesions, (2) inflammatory genes and metalloproteinases downregulation, (3) redox balance restoration, and (4) converse phenotype of anti-inflammatory macrophage M2 and contractile VSMC. Adoptive transfer of FcγR-expressing macrophages aggravated aneurysm in γKO mice. In vitro, FcγR deficiency attenuated inflammatory gene expression, oxidative stress, and phenotypic switch triggered by IC. Additionally, Syk inhibition prevented IC-mediated cell responses, reduced inflammation, and mitigated AAA formation. CONCLUSION Our findings provide insight into the role and mechanisms mediating IgG-FcγR-associated inflammation and aortic wall injury in AAA, which might represent therapeutic targets against AAA disease.
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MESH Headings
- Animals
- Antigen-Antibody Complex/adverse effects
- Aorta, Abdominal/metabolism
- Aorta, Abdominal/pathology
- Aortic Aneurysm, Abdominal/pathology
- Aortic Aneurysm, Abdominal/prevention & control
- Disease Models, Animal
- Humans
- Immunoglobulin gamma-Chains/genetics
- Immunoglobulin gamma-Chains/metabolism
- Inflammation/metabolism
- Inflammation/pathology
- Macrophages/cytology
- Macrophages/immunology
- Macrophages/metabolism
- Male
- Matrix Metalloproteinases/genetics
- Matrix Metalloproteinases/metabolism
- Mice
- Mice, Inbred C57BL
- Mice, Knockout
- Muscle, Smooth, Vascular/cytology
- Muscle, Smooth, Vascular/metabolism
- Niacinamide/analogs & derivatives
- Niacinamide/therapeutic use
- Oxidative Stress
- Pancreatic Elastase/adverse effects
- Pyrimidines/therapeutic use
- Receptors, IgG/genetics
- Receptors, IgG/metabolism
- Syk Kinase/antagonists & inhibitors
- Syk Kinase/metabolism
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Affiliation(s)
- Laura Lopez‐Sanz
- Renal, Vascular and Diabetes Research LabIIS‐Fundacion Jimenez Diaz (IIS‐FJD)MadridSpain
- Universidad Autonoma de Madrid (UAM)MadridSpain
- Spanish Biomedical Research Centre in Diabetes and Associated Metabolic Disorders (CIBERDEM)MadridSpain
| | - Susana Bernal
- Renal, Vascular and Diabetes Research LabIIS‐Fundacion Jimenez Diaz (IIS‐FJD)MadridSpain
- Universidad Autonoma de Madrid (UAM)MadridSpain
- Spanish Biomedical Research Centre in Diabetes and Associated Metabolic Disorders (CIBERDEM)MadridSpain
| | - Luna Jimenez‐Castilla
- Renal, Vascular and Diabetes Research LabIIS‐Fundacion Jimenez Diaz (IIS‐FJD)MadridSpain
- Universidad Autonoma de Madrid (UAM)MadridSpain
- Spanish Biomedical Research Centre in Diabetes and Associated Metabolic Disorders (CIBERDEM)MadridSpain
| | - Ignacio Prieto
- Renal, Vascular and Diabetes Research LabIIS‐Fundacion Jimenez Diaz (IIS‐FJD)MadridSpain
- Spanish Biomedical Research Centre in Diabetes and Associated Metabolic Disorders (CIBERDEM)MadridSpain
| | - Sara La Manna
- Renal, Vascular and Diabetes Research LabIIS‐Fundacion Jimenez Diaz (IIS‐FJD)MadridSpain
- Universidad Autonoma de Madrid (UAM)MadridSpain
| | | | - Luis Miguel Blanco‐Colio
- Renal, Vascular and Diabetes Research LabIIS‐Fundacion Jimenez Diaz (IIS‐FJD)MadridSpain
- Spanish Biomedical Research Centre in Cardiovascular Diseases (CIBERCV)MadridSpain
| | - Jesus Egido
- Renal, Vascular and Diabetes Research LabIIS‐Fundacion Jimenez Diaz (IIS‐FJD)MadridSpain
- Universidad Autonoma de Madrid (UAM)MadridSpain
- Spanish Biomedical Research Centre in Diabetes and Associated Metabolic Disorders (CIBERDEM)MadridSpain
| | - Jose Luis Martin‐Ventura
- Renal, Vascular and Diabetes Research LabIIS‐Fundacion Jimenez Diaz (IIS‐FJD)MadridSpain
- Universidad Autonoma de Madrid (UAM)MadridSpain
- Spanish Biomedical Research Centre in Cardiovascular Diseases (CIBERCV)MadridSpain
| | - Carmen Gomez‐Guerrero
- Renal, Vascular and Diabetes Research LabIIS‐Fundacion Jimenez Diaz (IIS‐FJD)MadridSpain
- Universidad Autonoma de Madrid (UAM)MadridSpain
- Spanish Biomedical Research Centre in Diabetes and Associated Metabolic Disorders (CIBERDEM)MadridSpain
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11
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DAPT, a potent Notch inhibitor regresses actively growing abdominal aortic aneurysm via divergent pathways. Clin Sci (Lond) 2020; 134:1555-1572. [PMID: 32490531 DOI: 10.1042/cs20200456] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 06/01/2020] [Accepted: 06/02/2020] [Indexed: 12/20/2022]
Abstract
Abdominal aortic aneurysm (AAA) is a localized pathological dilation of the aorta exceeding the normal diameter (∼20 mm) by more than 50% of its original size (≥30 mm), accounting for approximately 150000-200000 deaths worldwide per year. We previously reported that Notch inhibition does not decrease the size of pre-established AAA at late stage of the disease. Here, we examined whether a potent pharmacologic inhibitor of Notch signaling (DAPT (N-[N-(3,5-Difluorophenacetyl)-l-alanyl]-S-phenylglycine t-butyl ester)), regresses an actively growing AAA. In a mouse model of an aneurysm (Apoe-/- mice; n=44); DAPT (n=17) or vehicle (n=17) was randomly administered at day 14 of angiotensin II (AngII; 1 µg/min/kg), three times a week and mice were killed on day 42. Progressive increase in aortic stiffness and maximal intraluminal diameter (MILD) was observed in the AngII + vehicle group, which was significantly prevented by DAPT (P<0.01). The regression of aneurysm with DAPT was associated with reduced F4/80+Cd68+ (cluster of differentiation 68) inflammatory macrophages. DAPT improved structural integrity of aorta by reducing collagen fibrils abnormality and restoring their diameter. Mechanistically, C-C chemokine receptor type 7 (Ccr7)+F4/80- dendritic cells (DCs), implicated in the regression of aneurysm, were increased in the aorta of DAPT-treated mice. In the macrophages stimulated with AngII or lipopolysaccharide (LPS), DAPT reverted the expression of pro-inflammatory genes Il6 and Il12 back to baseline within 6 h compared with vehicle (P<0.05). DAPT also significantly increased the expression of anti-inflammatory genes, including c-Myc, Egr2, and Arg1 at 12-24 h in the LPS-stimulated macrophages (P<0.05). Overall, these regressive effects of Notch signaling inhibitor emphasize its therapeutic implications to prevent the progression of active AAAs.
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12
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Gurung R, Choong AM, Woo CC, Foo R, Sorokin V. Genetic and Epigenetic Mechanisms Underlying Vascular Smooth Muscle Cell Phenotypic Modulation in Abdominal Aortic Aneurysm. Int J Mol Sci 2020; 21:ijms21176334. [PMID: 32878347 PMCID: PMC7504666 DOI: 10.3390/ijms21176334] [Citation(s) in RCA: 69] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 08/24/2020] [Accepted: 08/26/2020] [Indexed: 12/12/2022] Open
Abstract
Abdominal aortic aneurysm (AAA) refers to the localized dilatation of the infra-renal aorta, in which the diameter exceeds 3.0 cm. Loss of vascular smooth muscle cells, degradation of the extracellular matrix (ECM), vascular inflammation, and oxidative stress are hallmarks of AAA pathogenesis and contribute to the progressive thinning of the media and adventitia of the aortic wall. With increasing AAA diameter, and left untreated, aortic rupture ensues with high mortality. Collective evidence of recent genetic and epigenetic studies has shown that phenotypic modulation of smooth muscle cells (SMCs) towards dedifferentiation and proliferative state, which associate with the ECM remodeling of the vascular wall and accompanied with increased cell senescence and inflammation, is seen in in vitro and in vivo models of the disease. This review critically analyses existing publications on the genetic and epigenetic mechanisms implicated in the complex role of SMCs within the aortic wall in AAA formation and reflects the importance of SMCs plasticity in AAA formation. Although evidence from the wide variety of mouse models is convincing, how this knowledge is applied to human biology needs to be addressed urgently leveraging modern in vitro and in vivo experimental technology.
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Affiliation(s)
- Rijan Gurung
- Cardiovascular Research Institute, Yong Loo Lin School of Medicine, National University of Singapore, 1E Kent Ridge Road, NUHS Tower Block, Level 9, Singapore 119228, Singapore; (R.G.); (R.F.)
- Genome Institute of Singapore, A*STAR, 60 Biopolis Street, Genome, Singapore 138672, Singapore
| | - Andrew Mark Choong
- Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, 1E Kent Ridge Road, NUHS Tower Block, Level 8, Singapore 119228, Singapore; (A.M.C.); (C.C.W.)
- Department of Cardiac, Thoracic and Vascular Surgery, National University Hospital, National University Health System, 1E Kent Ridge Road, NUHS Tower Block, Level 9, Singapore 119228, Singapore
| | - Chin Cheng Woo
- Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, 1E Kent Ridge Road, NUHS Tower Block, Level 8, Singapore 119228, Singapore; (A.M.C.); (C.C.W.)
| | - Roger Foo
- Cardiovascular Research Institute, Yong Loo Lin School of Medicine, National University of Singapore, 1E Kent Ridge Road, NUHS Tower Block, Level 9, Singapore 119228, Singapore; (R.G.); (R.F.)
- Genome Institute of Singapore, A*STAR, 60 Biopolis Street, Genome, Singapore 138672, Singapore
| | - Vitaly Sorokin
- Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, 1E Kent Ridge Road, NUHS Tower Block, Level 8, Singapore 119228, Singapore; (A.M.C.); (C.C.W.)
- Department of Cardiac, Thoracic and Vascular Surgery, National University Hospital, National University Health System, 1E Kent Ridge Road, NUHS Tower Block, Level 9, Singapore 119228, Singapore
- Correspondence: ; Tel.: +65-6779-5555
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13
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Zhang M, Ding X, Zhang Q, Liu J, Zhang Y, Zhang Y, Tian Z, Li W, Zhu W, Kang H, Wang Z, Wu X, Wang C, Yang X, Wang K. Exome sequencing of 112 trios identifies recessive genetic variants in brain arteriovenous malformations. J Neurointerv Surg 2020; 13:568-573. [PMID: 32848021 DOI: 10.1136/neurintsurg-2020-016469] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 08/03/2020] [Accepted: 08/05/2020] [Indexed: 02/02/2023]
Abstract
BACKGROUND Brain arteriovenous malformation (BAVM) is a main cause of cerebral hemorrhage and hemorrhagic stroke in adolescents. Morphologically, a BAVM is an abnormal connection between cerebrovascular arteries and veins. The genetic etiology of BAVMs has not been fully elucidated. In this study, we aim to investigate potential recessive genetic variants in BAVMs by interrogation of rare compound heterozygous variants. METHODS We performed whole exome sequencing (WES) on 112 BAVM trios and analyzed the data for rare and deleterious compound heterozygous mutations associated with the disease. RESULTS We identified 16 genes with compound heterozygous variants that were recurrent in more than one trio. Two genes (LRP2, MUC5B) were recurrently mutated in three trios. LRP2 has been previously associated with BAVM pathogenesis. Fourteen genes (MYLK, HSPG2, PEAK1, PIEZO1, PRUNE2, DNAH14, DNAH5, FCGBP, HERC2, HMCN1, MYH1, NHSL1, PLEC, RP1L1) were recurrently mutated in two trios, and five of these genes (MYLK, HSPG2, PEAK1, PIEZO1, PRUNE2) have been reported to play a role in angiogenesis or vascular diseases. Additionally, abnormal expression of the MYLK protein is related to spinal arteriovenous malformations. CONCLUSION Our study indicates that rare recessive compound heterozygous variants may underlie cases of BAVM. These findings improve our understanding of BAVM pathology and indicate genes for functional validation.
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Affiliation(s)
- Mingqi Zhang
- Department of Interventional Neuroradiology, Beijing Neurosurgical Institute and Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
| | - Xinghuan Ding
- Department of Neurosurgery, Beijing Ditan Hospital, Capital Medical University, Beijing 100070, China
| | - Qianqian Zhang
- Department of Cerebrovascular Disease, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Henan University People's Hospital, Henan Provincial Neurointerventional Engineering Research Center and Henan International Joint Laboratory of Cerebrovascular Disease, Zhengzhou 450000, Henan, China
| | - Jian Liu
- Department of Interventional Neuroradiology, Beijing Neurosurgical Institute and Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
| | - Yisen Zhang
- Department of Interventional Neuroradiology, Beijing Neurosurgical Institute and Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
| | - Ying Zhang
- Department of Interventional Neuroradiology, Beijing Neurosurgical Institute and Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
| | - Zhongbin Tian
- Department of Interventional Neuroradiology, Beijing Neurosurgical Institute and Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
| | - Wenqiang Li
- Department of Interventional Neuroradiology, Beijing Neurosurgical Institute and Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
| | - Wei Zhu
- Department of Interventional Neuroradiology, Beijing Neurosurgical Institute and Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
| | - Huibin Kang
- Department of Interventional Neuroradiology, Beijing Neurosurgical Institute and Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
| | - Zhongxiao Wang
- Department of Interventional Neuroradiology, Beijing Neurosurgical Institute and Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
| | - Xinzhi Wu
- Department of Interventional Neuroradiology, Beijing Neurosurgical Institute and Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
| | - Chao Wang
- Department of Interventional Neuroradiology, Beijing Neurosurgical Institute and Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
| | - Xinjian Yang
- Department of Interventional Neuroradiology, Beijing Neurosurgical Institute and Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
| | - Kun Wang
- Department of Interventional Neuroradiology, Beijing Neurosurgical Institute and Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
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14
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Zhang H, Yang D, Chen S, Li F, Cui L, Liu Z, Shao J, Chen Y, Liu B, Zheng Y. Identification of potential proteases for abdominal aortic aneurysm by weighted gene coexpression network analysis. Genome 2020; 63:561-575. [PMID: 32783773 DOI: 10.1139/gen-2020-0041] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Proteases are involved in the degradation of the extracellular matrix (ECM), which contributes to the formation of abdominal aortic aneurysm (AAA). To identify new disease targets in addition to the results of previous microarray studies, we performed next-generation sequencing (NGS) of the whole transcriptome of Angiotensin II-treated ApoE-/- male mice (n = 4) and control mice (n = 4) to obtain differentially expressed genes (DEGs). Identified DEGs of proteases were analyzed using weighted gene coexpression network analysis (WGCNA). RT-qPCR was conducted to validate the differential expression of selected hub genes. We found that 43 DEGs were correlated with the expression of the protease profile, and most were clustered in immune response module. Among 26 hub genes, we found that Mmp16 and Mmp17 were significantly downregulated in AAA mice, while Ctsa, Ctsc, and Ctsw were upregulated. Our functional annotation analysis of genes coexpressed with the five hub genes indicated that Ctsw and Mmp17 were involved in T cell regulation and Cell adhesion molecule pathway, respectively, and that both were involved in general regulation of the cell cycle and gene expression. Overall, our data suggest that these ectopic genes are potentially crucial to AAA formation and may act as biomarkers for the diagnosis of AAA.
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Affiliation(s)
- Hui Zhang
- Department of Vascular Surgery, Peking Union Medical College Hospital, Beijing 100730, P.R. China
| | - Dan Yang
- Department of Computational Biology and Bioinformatics, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, P.R. China
| | - Siliang Chen
- Department of Vascular Surgery, Peking Union Medical College Hospital, Beijing 100730, P.R. China
| | - Fangda Li
- Department of Vascular Surgery, Peking Union Medical College Hospital, Beijing 100730, P.R. China
| | - Liqiang Cui
- Department of Vascular Surgery, Peking Union Medical College Hospital, Beijing 100730, P.R. China
| | - Zhili Liu
- Department of Vascular Surgery, Peking Union Medical College Hospital, Beijing 100730, P.R. China
| | - Jiang Shao
- Department of Vascular Surgery, Peking Union Medical College Hospital, Beijing 100730, P.R. China
| | - Yuexin Chen
- Department of Vascular Surgery, Peking Union Medical College Hospital, Beijing 100730, P.R. China
| | - Bao Liu
- Department of Vascular Surgery, Peking Union Medical College Hospital, Beijing 100730, P.R. China
| | - Yuehong Zheng
- Department of Vascular Surgery, Peking Union Medical College Hospital, Beijing 100730, P.R. China
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15
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Decreasing Arl4c expression by inhibition of AKT signal in human lung adenocarcinoma cells. Life Sci 2020; 246:117428. [DOI: 10.1016/j.lfs.2020.117428] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Revised: 02/09/2020] [Accepted: 02/10/2020] [Indexed: 12/15/2022]
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16
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Sharma N, Dev R, Ruiz-Rosado JDD, Partida-Sanchez S, Guerau-de-Arellano M, Dhakal P, Kuivaniemi H, Hans CP. Pharmacological inhibition of Notch signaling regresses pre-established abdominal aortic aneurysm. Sci Rep 2019; 9:13458. [PMID: 31530833 PMCID: PMC6748927 DOI: 10.1038/s41598-019-49682-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Accepted: 08/27/2019] [Indexed: 12/22/2022] Open
Abstract
Abdominal aortic aneurysm (AAA) is characterized by transmural infiltration of myeloid cells at the vascular injury site. Previously, we reported preventive effects of Notch deficiency on the development of AAA by reduction of infiltrating myeloid cells. In this study, we examined if Notch inhibition attenuates the progression of pre-established AAA and potential implications. Pharmacological Notch inhibitor (N-[N-(3,5-difluorophenacetyl)-L-alanyl]-(S)-phenylglycine t-butyl ester; DAPT) was administered subcutaneously three times a week starting at day 28 of angiotensin II (AngII) infusion. Progressive increase in pulse wave velocity (PWV), maximal intra-luminal diameter (MILD) and maximal external aortic diameter (MEAD) were observed at day 56 of the AngII. DAPT prevented such increase in MILD, PWV and MEAD (P < 0.01). Histologically, the aortae of DAPT-treated Apoe-/- mice had significant reduction in inflammatory response and elastin fragmentation. Naked collagen microfibrils and weaker banded structure observed in the aortae of Apoe-/- mice in response to AngII, were substantially diminished by DAPT. A significant decrease in the proteolytic activity in the aneurysmal tissues and vascular smooth muscle cells (vSMCs) was observed with DAPT (P < 0.01). In human and mouse AAA tissues, increased immunoreactivity of activated Notch signaling correlated strongly with CD38 expression (R2 = 0.61). Collectively, we propose inhibition of Notch signaling as a potential therapeutic target for AAA progression.
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MESH Headings
- ADP-ribosyl Cyclase 1/metabolism
- Angiotensin II/adverse effects
- Animals
- Aorta/drug effects
- Aorta/metabolism
- Aortic Aneurysm, Abdominal/chemically induced
- Aortic Aneurysm, Abdominal/diagnostic imaging
- Aortic Aneurysm, Abdominal/drug therapy
- Aortic Aneurysm, Abdominal/metabolism
- Cells, Cultured
- Collagen/metabolism
- Cytokines/metabolism
- Dipeptides/pharmacology
- Disease Models, Animal
- Extracellular Matrix/drug effects
- Extracellular Matrix/metabolism
- Gene Expression Regulation/drug effects
- Humans
- Male
- Membrane Glycoproteins/metabolism
- Mice
- Myocytes, Smooth Muscle/drug effects
- Myocytes, Smooth Muscle/metabolism
- Receptors, Notch/antagonists & inhibitors
- Receptors, Notch/metabolism
- Signal Transduction/drug effects
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Affiliation(s)
- Neekun Sharma
- Department of Cardiovascular Medicine, University of Missouri, Columbia, USA
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, USA
| | - Rishabh Dev
- Department of Cardiovascular Medicine, University of Missouri, Columbia, USA
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, USA
| | - Juan de Dios Ruiz-Rosado
- Center for Microbial Pathogenesis, The Research Institute at Nationwide Children's Hospital, Columbus, OH, USA
| | - Santiago Partida-Sanchez
- Center for Microbial Pathogenesis, The Research Institute at Nationwide Children's Hospital, Columbus, OH, USA
| | - Mireia Guerau-de-Arellano
- School of Health and Rehabilitation Sciences, Medical Laboratory Science Division, The Ohio State University, Columbus, OH, USA
| | - Pramod Dhakal
- Animal Science Research Center, University of Missouri, Columbia, USA
| | - Helena Kuivaniemi
- Division of Molecular Biology and Human Genetics, Department of Biomedical Sciences, Stellenbosch University, Cape Town, South Africa
| | - Chetan P Hans
- Department of Cardiovascular Medicine, University of Missouri, Columbia, USA.
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, USA.
- Medical Pharmacology and Physiology, University of Missouri, Columbia, USA.
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17
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Genomic Analysis of an Obesity Paradox: A Microarray Study of the Aortas of Morbidly Obese Decedents With Mild and Severe Atherosclerosis. Crit Pathw Cardiol 2019; 18:57-60. [PMID: 30747767 DOI: 10.1097/hpc.0000000000000169] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
BACKGROUND Atherosclerosis of the aorta and coronary arteries is still one of the major causes of death. We recently reported obesity paradox between body mass index and atherosclerosis of the aortas (AA) in morbidly obese decedent patients. The cause of this obesity paradox is unknown. The aim of the present study was to carry out genomic microarray analysis to determine gene expression profiles in the aortas of morbidly obese decedents with either mild or severe atherosclerosis of the aorta. METHODS Microarray studies using Affymetrix GeneChips Clariom D Human array chips were performed on the aortas obtained from 6 morbidly obese decedents, 3 of whom had minimal AA and 3 who had severe disease. RESULTS Group 1 (severe AA) and group 2 (mild AA) included 3 patients each. The patients were matched by age and body mass index. There were significant (P<0.005) differences in the expressions of 1067 genes between groups 1 and 2, including 602 upregulated and 465 downregulated genes. CONCLUSIONS Our data show significantly different gene signatures between morbidly obese decedents who have mild or severe AA, suggesting that genetic factors may be important contributors to the obesity paradox as it relates to aortic atherosclerosis. Further studies are warranted to define differences in protein expression in the aortas of these 2 groups to further elucidate the cause of this obesity paradox.
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18
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Lai PMR, Du R. Differentially Expressed Genes Associated with the Estrogen Receptor Pathway in Cerebral Aneurysms. World Neurosurg 2019; 126:e557-e563. [DOI: 10.1016/j.wneu.2019.02.094] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Revised: 02/08/2019] [Accepted: 02/09/2019] [Indexed: 01/23/2023]
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19
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PRUCHA M, SEDIVY P, STADLER P, ZDRAHAL P, MATOSKA V, STRNAD H. Gene Expression in Patients With Abdominal Aortic Aneurysm – More Than Immunological Mechanisms Involved. Physiol Res 2019; 68:385-394. [DOI: 10.33549/physiolres.933905] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Abdominal aortic aneurysm (AAA) is a serious condition of unclear pathogenesis and progression. Two samples were collected from 48 patients during AAA surgery. One sample was collected from the aneurysm, the other from the aneurysm proximal neck where the tissue did not exhibit any aneurysmal changes. Subsequently, gene expression profiles using microarrays (Illumina) were compared in RNA extracted from the samples. Overall, 2,185 genes were found to be upregulated and 2,100 downregulated; from which 158 genes had a different expression with FDR<0.05 (False Discovery Rate) and FC≥2 (Fold Change). Of this number, 115 genes were over-expressed and 43 under-expressed. The analysis of the gene list based on their biological pathways revealed that the regulation of inflammation was mediated by chemokine and cytokine signaling pathways, the integrin signaling pathway, and T and B cell activation. Moreover, a change was identified in the expression of genes involved in both intercellular and intracellular signaling systems.
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Affiliation(s)
- M PRUCHA
- Department of Clinical Biochemistry, Hematology and Immunology, Na Homolce Hospital, Prague, Czech Republic
| | - P SEDIVY
- Department of Vascular Surgery, Na Homolce Hospital, Prague, Czech Republic
| | - P STADLER
- Department of Vascular Surgery, Na Homolce Hospital, Prague, Czech Republic
| | - P ZDRAHAL
- Department of Vascular Surgery, Na Homolce Hospital, Prague, Czech Republic
| | - V MATOSKA
- Department of Clinical Biochemistry, Hematology and Immunology, Na Homolce Hospital, Prague, Czech Republic
| | - H STRNAD
- Genomics and Bioinformatics Core Facility, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czech Republic
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20
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Abstract
Abdominal aortic aneurysm (AAA) is a local dilatation of the abdominal aortic vessel wall and is among the most challenging cardiovascular diseases as without urgent surgical intervention, ruptured AAA has a mortality rate of >80%. Most patients present acutely after aneurysm rupture or dissection from a previously asymptomatic condition and are managed by either surgery or endovascular repair. Patients usually are old and have other concurrent diseases and conditions, such as diabetes mellitus, obesity, and hypercholesterolemia making surgical intervention more difficult. Collectively, these issues have driven the search for alternative methods of diagnosing, monitoring, and treating AAA using therapeutics and less invasive approaches. Noncoding RNAs-short noncoding RNAs (microRNAs) and long-noncoding RNAs-are emerging as new fundamental regulators of gene expression. Researchers and clinicians are aiming at targeting these microRNAs and long noncoding RNAs and exploit their potential as clinical biomarkers and new therapeutic targets for AAAs. While the role of miRNAs in AAA is established, studies on long-noncoding RNAs are only beginning to emerge, suggesting their important yet unexplored role in vascular physiology and disease. Here, we review the role of noncoding RNAs and their target genes focusing on their role in AAA. We also discuss the animal models used for mechanistic understanding of AAA. Furthermore, we discuss the potential role of microRNAs and long noncoding RNAs as clinical biomarkers and therapeutics.
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Affiliation(s)
- Sandeep Kumar
- Wallace H. Coulter Department of Biomedical Engineering,
Emory University and Georgia Institute of Technology, Atlanta, GA, USA
| | - Reinier A. Boon
- Institute for Cardiovascular Regeneration, Center of
Molecular Medicine, Goethe University, Frankfurt, Germany
- Department of Physiology, Amsterdam Cardiovascular
Sciences, VU University Medical Center, De Boelelaan 1117, 1081 HV Amsterdam, The
Netherlands
- German Center of Cardiovascular Research DZHK, Frankfurt,
Germany
| | - Lars Maegdefessel
- Department of Medicine, Karolinska Institute, Stockholm,
Sweden
- Department of Vascular and Endovascular Surgery, Technical
University Munich, Munich, Germany
- German Center for Cardiovascular Research DZHK, Munich,
Germany
| | - Stefanie Dimmeler
- Institute for Cardiovascular Regeneration, Center of
Molecular Medicine, Goethe University, Frankfurt, Germany
- German Center of Cardiovascular Research DZHK, Frankfurt,
Germany
- Corresponding authors: Hanjoong Jo, PhD, John and Jan Portman
Professor, Wallace H. Coulter Department of Biomedical Engineering, Emory
University and Georgia Institute of Technology, 1760 Haygood Drive, Atlanta, GA
30322, , Stefanie Dimmeler, PhD, Institute for
Cardiovascular Regeneration, Centre of Molecular Medicine, Goethe University
Frankfurt, Theodor Stern Kai 7, 60590, Frankfurt, Germany,
| | - Hanjoong Jo
- Wallace H. Coulter Department of Biomedical Engineering,
Emory University and Georgia Institute of Technology, Atlanta, GA, USA
- Division of Cardiology, Emory University, Atlanta, GA,
USA
- Corresponding authors: Hanjoong Jo, PhD, John and Jan Portman
Professor, Wallace H. Coulter Department of Biomedical Engineering, Emory
University and Georgia Institute of Technology, 1760 Haygood Drive, Atlanta, GA
30322, , Stefanie Dimmeler, PhD, Institute for
Cardiovascular Regeneration, Centre of Molecular Medicine, Goethe University
Frankfurt, Theodor Stern Kai 7, 60590, Frankfurt, Germany,
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Wan L, Huang J, Ni H, Yu G. Screening key genes for abdominal aortic aneurysm based on gene expression omnibus dataset. BMC Cardiovasc Disord 2018; 18:34. [PMID: 29439675 PMCID: PMC5812227 DOI: 10.1186/s12872-018-0766-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Accepted: 01/31/2018] [Indexed: 01/15/2023] Open
Abstract
Background Abdominal aortic aneurysm (AAA) is a common cardiovascular system disease with high mortality. The aim of this study was to identify potential genes for diagnosis and therapy in AAA. Methods We searched and downloaded mRNA expression data from the Gene Expression Omnibus (GEO) database to identify differentially expressed genes (DEGs) from AAA and normal individuals. Then, Gene Ontology and Kyoto Encyclopedia of Genes and Genomes pathway analysis, transcriptional factors (TFs) network and protein-protein interaction (PPI) network were used to explore the function of genes. Additionally, immunohistochemical (IHC) staining was used to validate the expression of identified genes. Finally, the diagnostic value of identified genes was accessed by receiver operating characteristic (ROC) analysis in GEO database. Results A total of 1199 DEGs (188 up-regulated and 1011 down-regulated) were identified between AAA and normal individual. KEGG pathway analysis displayed that vascular smooth muscle contraction and pathways in cancer were significantly enriched signal pathway. The top 10 up-regulated and top 10 down-regulated DEGs were used to construct TFs and PPI networks. Some genes with high degrees such as NELL2, CCR7, MGAM, HBB, CSNK2A2, ZBTB16 and FOXO1 were identified to be related to AAA. The consequences of IHC staining showed that CCR7 and PDGFA were up-regulated in tissue samples of AAA. ROC analysis showed that NELL2, CCR7, MGAM, HBB, CSNK2A2, ZBTB16, FOXO1 and PDGFA had the potential diagnostic value for AAA. Conclusions The identified genes including NELL2, CCR7, MGAM, HBB, CSNK2A2, ZBTB16, FOXO1 and PDGFA might be involved in the pathology of AAA.
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Affiliation(s)
- Li Wan
- Department of pathology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Jingyong Huang
- Department of vascular surgery, The First Affiliated Hospital of Wenzhou Medical University, NO.3, YuanXi Lane, Lucheng District, Wenzhou, Zhejiang, 325000, China.
| | - Haizhen Ni
- Department of vascular surgery, The First Affiliated Hospital of Wenzhou Medical University, NO.3, YuanXi Lane, Lucheng District, Wenzhou, Zhejiang, 325000, China
| | - Guanfeng Yu
- Department of vascular surgery, The First Affiliated Hospital of Wenzhou Medical University, NO.3, YuanXi Lane, Lucheng District, Wenzhou, Zhejiang, 325000, China
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Differentially expressed genes and canonical pathways in the ascending thoracic aortic aneurysm - The Tampere Vascular Study. Sci Rep 2017; 7:12127. [PMID: 28935963 PMCID: PMC5608723 DOI: 10.1038/s41598-017-12421-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Accepted: 09/07/2017] [Indexed: 12/14/2022] Open
Abstract
Ascending thoracic aortic aneurysm (ATAA) is a multifactorial disease with a strong inflammatory component. Surgery is often required to prevent aortic rupture and dissection. We performed gene expression analysis (Illumina HumanHT-12 version 3 Expression BeadChip) for 32 samples from ATAA (26 without/6 with dissection), and 28 left internal thoracic arteries (controls) collected in Tampere Vascular study. We compared expression profiles and conducted pathway analysis using Ingenuity Pathway Analysis (IPA) to reveal differences between ATAA and a healthy artery wall. Almost 5000 genes were differentially expressed in ATAA samples compared to controls. The most downregulated gene was homeobox (HOX) A5 (fold change, FC = -25.3) and upregulated cadherin-2 (FC = 12.6). Several other HOX genes were also found downregulated (FCs between -25.3 and -1.5, FDR < 0.05). 43, mostly inflammatory, canonical pathways in ATAA were found to be significantly (p < 0.05, FDR < 0.05) differentially expressed. The results remained essentially the same when the 6 dissected ATAA samples were excluded from the analysis. We show for the first time on genome level that ATAA is an inflammatory process, revealing a more detailed molecular pathway level pathogenesis. We propose HOX genes as potentially important players in maintaining aortic integrity, altered expression of which might be important in the pathobiology of ATAA.
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Shi Y, Yang CQ, Wang SW, Li W, Li J, Wang SM. Characterization of Fc gamma receptor IIb expression within abdominal aortic aneurysm. Biochem Biophys Res Commun 2017; 485:295-300. [DOI: 10.1016/j.bbrc.2017.02.088] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Accepted: 02/17/2017] [Indexed: 11/28/2022]
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A Novel Modification of the Murine Elastase Infusion Model of Abdominal Aortic Aneurysm Formation. Ann Vasc Surg 2017; 42:246-253. [PMID: 28288888 DOI: 10.1016/j.avsg.2017.01.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Revised: 12/17/2016] [Accepted: 01/14/2017] [Indexed: 02/07/2023]
Abstract
BACKGROUND To create a novel procedure that will decrease the mortality of experimental animals in the intraarterial infusion of elastase abdominal aortic aneurysm (AAA) model. METHODS Novel models were created by means of direct puncture in the infrarenal abdominal aortic aorta, intraluminal elastase in the 1-cm segment of abdominal aorta. Femoral artery cannula approach and infusing with elastase was considered as the traditional group and that infusing with saline solution as the control group. Survival rate, morphology and histology of aneurysms, and inflammation mediators were calculated. RESULTS Among the 36 rats, the average length from testicular arteries to left iliolumbar artery was 1.18 ± 0.22 cm, and 77.8% of them were longer than 1 cm. Procedure time was significantly shorter in novel group than that in 2 other groups (P = 0.006; P < 0.0001). During 24 hr postoperation, no death was observed in the novel group. Within 4 wk, survival rate in the control group was 60.6% and 80.8% in the novel group whereas 41.0% in the traditional group. Till the second week, all rats in the traditional and novel group had formed AAAs. And then, the survival rates and rupture rates of AAA between the 2 groups were similar within the following 2 wk (P = 0.487; P = 0.539). Inflammation degree and elastase content in intima media of aneurysms were similar (P = 0.720). However, Tumor necrosis factor alpha and Interleukin-1 beta levels were significantly lower in the novel group than those in the traditional group (P < 0.0001; P < 0.0001). CONCLUSIONS A novel rat AAA model was created by intraluminal elastase infusion through direct puncture the infrarenal aorta. This model is efficient and reliable, with a high survival rate and with similar morphology and histology of aortic aneurysms.
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25
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Genetic and Epigenetic Regulation of Aortic Aneurysms. BIOMED RESEARCH INTERNATIONAL 2017; 2017:7268521. [PMID: 28116311 PMCID: PMC5237727 DOI: 10.1155/2017/7268521] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Accepted: 12/15/2016] [Indexed: 02/07/2023]
Abstract
Aneurysms are characterized by structural deterioration of the vascular wall leading to progressive dilatation and, potentially, rupture of the aorta. While aortic aneurysms often remain clinically silent, the morbidity and mortality associated with aneurysm expansion and rupture are considerable. Over 13,000 deaths annually in the United States are attributable to aortic aneurysm rupture with less than 1 in 3 persons with aortic aneurysm rupture surviving to surgical intervention. Environmental and epidemiologic risk factors including smoking, male gender, hypertension, older age, dyslipidemia, atherosclerosis, and family history are highly associated with abdominal aortic aneurysms, while heritable genetic mutations are commonly associated with aneurysms of the thoracic aorta. Similar to other forms of cardiovascular disease, family history, genetic variation, and heritable mutations modify the risk of aortic aneurysm formation and provide mechanistic insight into the pathogenesis of human aortic aneurysms. This review will examine the relationship between heritable genetic and epigenetic influences on thoracic and abdominal aortic aneurysm formation and rupture.
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Alesutan I, Feger M, Tuffaha R, Castor T, Musculus K, Buehling SS, Heine CL, Kuro-O M, Pieske B, Schmidt K, Tomaschitz A, Maerz W, Pilz S, Meinitzer A, Voelkl J, Lang F. Augmentation of phosphate-induced osteo-/chondrogenic transformation of vascular smooth muscle cells by homoarginine. Cardiovasc Res 2016; 110:408-418. [DOI: 10.1093/cvr/cvw062] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/30/2023] Open
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27
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Kuivaniemi H, Ryer EJ, Elmore JR, Tromp G. Understanding the pathogenesis of abdominal aortic aneurysms. Expert Rev Cardiovasc Ther 2016; 13:975-87. [PMID: 26308600 DOI: 10.1586/14779072.2015.1074861] [Citation(s) in RCA: 241] [Impact Index Per Article: 30.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
An aortic aneurysm is a dilatation in which the aortic diameter is ≥3.0 cm. If left untreated, the aortic wall continues to weaken and becomes unable to withstand the forces of the luminal blood pressure resulting in progressive dilatation and rupture, a catastrophic event associated with a mortality of 50-80%. Smoking and positive family history are important risk factors for the development of abdominal aortic aneurysms (AAA). Several genetic risk factors have also been identified. On the histological level, visible hallmarks of AAA pathogenesis include inflammation, smooth muscle cell apoptosis, extracellular matrix degradation and oxidative stress. We expect that large genetic, genomic, epigenetic, proteomic and metabolomic studies will be undertaken by international consortia to identify additional risk factors and biomarkers, and to enhance our understanding of the pathobiology of AAA. Collaboration between different research groups will be important in overcoming the challenges to develop pharmacological treatments for AAA.
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Affiliation(s)
- Helena Kuivaniemi
- a 1 Sigfried and Janet Weis Center for Research, Geisinger Health System, Danville, PA 17822, USA
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Busch A, Busch M, Scholz CJ, Kellersmann R, Otto C, Chernogubova E, Maegdefessel L, Zernecke A, Lorenz U. Aneurysm miRNA Signature Differs, Depending on Disease Localization and Morphology. Int J Mol Sci 2016; 17:ijms17010081. [PMID: 26771601 PMCID: PMC4730325 DOI: 10.3390/ijms17010081] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Revised: 12/18/2015] [Accepted: 01/04/2016] [Indexed: 12/27/2022] Open
Abstract
Limited comprehension of aneurysm pathology has led to inconclusive results from clinical trials. miRNAs are key regulators of post-translational gene modification and are useful tools in elucidating key features of aneurysm pathogenesis in distinct entities of abdominal and popliteal aneurysms. Here, surgically harvested specimens from 19 abdominal aortic aneurysm (AAA) and 8 popliteal artery aneurysm (PAA) patients were analyzed for miRNA expression and histologically classified regarding extracellular matrix (ECM) remodeling and inflammation. DIANA-based computational target prediction and pathway enrichment analysis verified our results, as well as previous ones. miRNA-362, -19b-1, -194, -769, -21 and -550 were significantly down-regulated in AAA samples depending on degree of inflammation. Similar or inverse regulation was found for miR-769, 19b-1 and miR-550, -21, whereas miR-194 and -362 were unaltered in PAA. In situ hybridization verified higher expression of miR-550 and -21 in PAA compared to AAA and computational analysis for target genes and pathway enrichment affirmed signal transduction, cell-cell-interaction and cell degradation pathways, in line with previous results. Despite the vague role of miRNAs for potential diagnostic and treatment purposes, the number of candidates from tissue signature studies is increasing. Tissue morphology influences subsequent research, yet comparison of distinct entities of aneurysm disease can unravel core pathways.
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Affiliation(s)
- Albert Busch
- Department for General, Visceral, Vascular & Paediatric Surgery, University Hospital of Würzburg, Würzburg 97080, Germany.
| | - Martin Busch
- Rudolf Virchow-Center, University of Würzburg, Würzburg 97080, Germany.
| | - Claus-Jürgen Scholz
- IZKF Laboratory for Microarray Applications, University Hospital Würzburg, Würzburg 97080, Germany.
| | - Richard Kellersmann
- Department for General, Visceral, Vascular & Paediatric Surgery, University Hospital of Würzburg, Würzburg 97080, Germany.
| | - Christoph Otto
- Department for General, Visceral, Vascular & Paediatric Surgery, University Hospital of Würzburg, Würzburg 97080, Germany.
| | - Ekaterina Chernogubova
- Department of Medicine, Center for Molecular Medicine (L8:03), Karolinska Institute, Stockholm 12065, Sweden.
| | - Lars Maegdefessel
- Department of Medicine, Center for Molecular Medicine (L8:03), Karolinska Institute, Stockholm 12065, Sweden.
| | - Alma Zernecke
- Institute of Experimental Biomedicine, University Hospital Würzburg, Würzburg 97080, Germany.
| | - Udo Lorenz
- Department for General, Visceral, Vascular & Paediatric Surgery, University Hospital of Würzburg, Würzburg 97080, Germany.
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Chen X, Zheng C, He Y, Tian L, Li J, Li D, Jin W, Li M, Zheng S. Identification of key genes associated with the human abdominal aortic aneurysm based on the gene expression profile. Mol Med Rep 2015; 12:7891-8. [PMID: 26498477 PMCID: PMC4758287 DOI: 10.3892/mmr.2015.4448] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2014] [Accepted: 08/17/2015] [Indexed: 12/30/2022] Open
Abstract
The present study was aimed at screening the key genes associated with abdominal aortic aneurysm (AAA) in the neck, and to investigate the molecular mechanism underlying the development of AAA. The gene expression profile, GSE47472, including 14 AAA neck samples and eight donor controls, was downloaded from the Gene Expression Omnibus database. The total AAA samples were grouped into two types to avoid bias. Differentially expressed genes (DEGs) were screened in patients with AAA and subsequently compared with donor controls using linear models for microarray data, or the Limma package in R, followed by gene ontology enrichment analysis. Furthermore, a protein-protein interaction (PPI) network based on the DEGs was constructed to detect highly connected regions using a Cytoscape plugin. In total, 388 DEGs in the AAA samples were identified. These DEGs were predominantly associated with limb development, including embryonic limb development and appendage development. Nuclear receptor co-repressor 1 (NCOR1), histone 4 (H4), E2F transcription factor 4 (E2F4) and hepatocyte nuclear factor 4α (HNF4A) were the four transcription factors associated with AAA. Furthermore, HNF4A indirectly interacted with the other three transcription factors. Additionally, six clusters were selected from the PPI network. The DEG screening process and the construction of an interaction network enabled an understanding of the mechanism of AAA to be gleaned. HNF4A may exert an important role in AAA development through its interactions with the three other transcription factors (E2F4, NCOR1 and H4), and the mechanism of this coordinated regulation of the transcription factors in AAA may provide a suitable target for the development of therapeutic intervention strategies.
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Affiliation(s)
- Xudong Chen
- Department of Vascular Surgery, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, P.R. China
| | - Chengfei Zheng
- Department of Vascular Surgery, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, P.R. China
| | - Yunjun He
- Department of Vascular Surgery, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, P.R. China
| | - Lu Tian
- Department of Vascular Surgery, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, P.R. China
| | - Jianhui Li
- Department of Vascular Surgery, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, P.R. China
| | - Donglin Li
- Department of Vascular Surgery, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, P.R. China
| | - Wei Jin
- Department of Vascular Surgery, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, P.R. China
| | - Ming Li
- Department of Vascular Surgery, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, P.R. China
| | - Shusen Zheng
- Key Laboratory of Combined Multi-Organ Transplantation, Ministry of Public Health, Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, P.R. China
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Tanios F, Pelisek J, Lutz B, Reutersberg B, Matevossian E, Schwamborn K, Hösel V, Eckstein HH, Reeps C. CXCR4: A Potential Marker for Inflammatory Activity in Abdominal Aortic Aneurysm Wall. Eur J Vasc Endovasc Surg 2015; 50:745-53. [PMID: 26346005 DOI: 10.1016/j.ejvs.2015.07.040] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2015] [Accepted: 07/30/2015] [Indexed: 12/27/2022]
Abstract
OBJECTIVES The aim of the study was to evaluate the potential role of chemokine receptor CXCR4 and its ligand CXCL12 in the pathogenesis of abdominal aortic aneurysm (AAA). METHODS AAA tissue specimens were obtained from the anterior or lateral aneurysm sac of patients (n = 32, 26 males, 6 females; 66.8 ± 11.2 years, diameter 64.4 ± 17.0 mm), who underwent elective open surgical repair. Twelve non-aneurysmal aortic specimens from transplant donors served as controls. Expression analysis of CXCR4 and CXCL12 at mRNA and protein level was determined by quantitative reverse transcription-polymerase chain reaction (RT-PCR) and western blot. Immunohistochemical staining of corresponding histological sections for CD3 (T-cells), CD20 (B-cells), and CD68 (macrophages) was performed to determine the cellular localization of CXCR4 and CXCL12. Data were analyzed with SPSS 20.0 using Mann-Whitney U test and Spearman's rank correlation coefficient. RESULTS Gene expression of CXCR4 and CXCL12 was 9.6 and 4.6 fold higher in AAA than in non-aneurysmal aorta (p = .0004 and p < .0001, respectively). Likewise, the protein level of CXCR4 was increased 3.2 fold in AAA wall compared with non-aneurysmal aortic tissue (p < .0001), although CXCL12 could not be detected. Immunohistochemical analysis revealed that CXCR4 was expressed in B and T lymphocytes and macrophages, and CXCL12 was observed only in plasma cells. CONCLUSIONS This study confirmed the over expression of CXCR4 in human AAA tissue. CXCR4 was detected both at the mRNA and the protein level and by immunohistochemistry, especially in inflammatory cells. In contrast, CXCL12 expression was observed only at the mRNA level, with the exception of plasma cells. The exact role of CXCR4/CXCL12 in AAA has to be further elucidated.
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Affiliation(s)
- F Tanios
- Department of Vascular and Endovascular Surgery, Klinikum rechts der Isar, Munich, Germany
| | - J Pelisek
- Department of Vascular and Endovascular Surgery, Klinikum rechts der Isar, Munich, Germany.
| | - B Lutz
- Department of Vascular and Endovascular Surgery, Klinikum rechts der Isar, Munich, Germany
| | - B Reutersberg
- Department of Vascular and Endovascular Surgery, Klinikum rechts der Isar, Munich, Germany
| | - E Matevossian
- Department of Surgery, Munich Transplant Centre, Klinikum rechts der Isar, Munich, Germany
| | - K Schwamborn
- Institute of Pathology, Klinikum rechts der Isar, Munich, Germany
| | - V Hösel
- Department of Mathematical Modeling of Biological Systems, Technische Universität München, Munich, Germany
| | - H-H Eckstein
- Department of Vascular and Endovascular Surgery, Klinikum rechts der Isar, Munich, Germany
| | - C Reeps
- Department of Vascular and Endovascular Surgery, Klinikum rechts der Isar, Munich, Germany
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31
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Hinterseher I, Schworer CM, Lillvis JH, Stahl E, Erdman R, Gatalica Z, Tromp G, Kuivaniemi H. Immunohistochemical analysis of the natural killer cell cytotoxicity pathway in human abdominal aortic aneurysms. Int J Mol Sci 2015; 16:11196-212. [PMID: 25993291 PMCID: PMC4463696 DOI: 10.3390/ijms160511196] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2014] [Revised: 01/26/2015] [Accepted: 01/28/2015] [Indexed: 12/18/2022] Open
Abstract
Our previous analysis using genome-wide microarray expression data revealed extreme overrepresentation of immune related genes belonging the Natural Killer (NK) Cell Mediated Cytotoxicity pathway (hsa04650) in human abdominal aortic aneurysm (AAA). We followed up the microarray studies by immunohistochemical analyses using antibodies against nine members of the NK pathway (VAV1, VAV3, PLCG1, PLCG2, HCST, TYROBP, PTK2B, TNFA, and GZMB) and aortic tissue samples from AAA repair operations (n = 6) and control aortae (n = 8) from age-, sex- and ethnicity-matched donors from autopsies. The results confirmed the microarray results. Two different members of the NK pathway, HCST and GRZB, which act at different steps in the NK-pathway, were actively transcribed and translated into proteins in the same cells in the AAA tissue demonstrated by double staining. Furthermore, double staining with antibodies against CD68 or CD8 together with HCST, TYROBP, PTK2B or PLCG2 revealed that CD68 and CD8 positive cells expressed proteins of the NK-pathway but were not the only inflammatory cells involved in the NK-pathway in the AAA tissue. The results provide strong evidence that the NK Cell Mediated Cytotoxicity Pathway is activated in human AAA and valuable insight for future studies to dissect the pathogenesis of human AAA.
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MESH Headings
- Adaptor Proteins, Signal Transducing/genetics
- Adaptor Proteins, Signal Transducing/metabolism
- Adult
- Aged
- Aged, 80 and over
- Antigens, CD/metabolism
- Antigens, Differentiation, Myelomonocytic/metabolism
- Aorta, Abdominal/metabolism
- Aorta, Abdominal/pathology
- Aortic Aneurysm, Abdominal/immunology
- Aortic Aneurysm, Abdominal/metabolism
- Aortic Aneurysm, Abdominal/pathology
- CD8 Antigens/metabolism
- Female
- Focal Adhesion Kinase 2/genetics
- Focal Adhesion Kinase 2/metabolism
- Humans
- Immunohistochemistry
- Killer Cells, Natural/cytology
- Killer Cells, Natural/immunology
- Killer Cells, Natural/metabolism
- Male
- Membrane Proteins/genetics
- Membrane Proteins/metabolism
- Middle Aged
- Oligonucleotide Array Sequence Analysis
- Phospholipase C gamma/metabolism
- Proto-Oncogene Proteins c-vav/genetics
- Proto-Oncogene Proteins c-vav/metabolism
- Receptors, Immunologic/genetics
- Receptors, Immunologic/metabolism
- Transcriptome
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Affiliation(s)
- Irene Hinterseher
- Department of General, Visceral, Vascular and Thoracic Surgery, Charité Universitätsmedizin, Campus Mitte, 10117 Berlin, Germany.
| | - Charles M Schworer
- Sigfried and Janet Weis Center for Research, Geisinger Health System, Danville, PA 17822, USA.
| | - John H Lillvis
- The Center for Molecular Medicine and Genetics, Wayne State University School of Medicine, Detroit, MI 48202, USA.
| | - Elizabeth Stahl
- Sigfried and Janet Weis Center for Research, Geisinger Health System, Danville, PA 17822, USA.
| | - Robert Erdman
- Sigfried and Janet Weis Center for Research, Geisinger Health System, Danville, PA 17822, USA.
| | | | - Gerard Tromp
- Sigfried and Janet Weis Center for Research, Geisinger Health System, Danville, PA 17822, USA.
| | - Helena Kuivaniemi
- Sigfried and Janet Weis Center for Research, Geisinger Health System, Danville, PA 17822, USA.
- Department of Surgery, Temple University School of Medicine, Philadelphia, PA 19140, USA.
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Pahl MC, Erdman R, Kuivaniemi H, Lillvis JH, Elmore JR, Tromp G. Transcriptional (ChIP-Chip) Analysis of ELF1, ETS2, RUNX1 and STAT5 in Human Abdominal Aortic Aneurysm. Int J Mol Sci 2015; 16:11229-58. [PMID: 25993293 PMCID: PMC4463698 DOI: 10.3390/ijms160511229] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2014] [Accepted: 12/31/2014] [Indexed: 01/22/2023] Open
Abstract
We investigated transcriptional control of gene expression in human abdominal aortic aneurysm (AAA). We previously identified 3274 differentially expressed genes in human AAA tissue compared to non-aneurysmal controls. Four expressed transcription factors (ELF1, ETS2, STAT5 and RUNX1) were selected for genome-wide chromatin immunoprecipitation. Transcription factor binding was enriched in 4760 distinct genes (FDR < 0.05), of which 713 were differentially expressed in AAA. Functional classification using Gene Ontology (GO), KEGG, and Network Analysis revealed enrichment in several biological processes including “leukocyte migration” (FDR = 3.09 × 10−05) and “intracellular protein kinase cascade” (FDR = 6.48 × 10−05). In the control aorta, the most significant GO categories differed from those in the AAA samples and included “cytoskeleton organization” (FDR = 1.24 × 10−06) and “small GTPase mediated signal transduction” (FDR = 1.24 × 10−06). Genes up-regulated in AAA tissue showed a highly significant enrichment for GO categories “leukocyte migration” (FDR = 1.62 × 10−11), “activation of immune response” (FDR = 8.44 × 10−11), “T cell activation” (FDR = 4.14 × 10−10) and “regulation of lymphocyte activation” (FDR = 2.45 × 10−09), whereas the down-regulated genes were enriched in GO categories “cytoskeleton organization” (FDR = 7.84 × 10−05), “muscle cell development” (FDR = 1.00 × 10−04), and “organ morphogenesis” (FDR = 3.00 × 10−04). Quantitative PCR assays confirmed a sub-set of the transcription factor binding sites including those in MTMR11, DUSP10, ITGAM, MARCH1, HDAC8, MMP14, MAGI1, THBD and SPOCK1.
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Affiliation(s)
- Matthew C Pahl
- Sigfried and Janet Weis Center for Research, Geisinger Health System, Danville, PA 17822, USA.
| | - Robert Erdman
- Sigfried and Janet Weis Center for Research, Geisinger Health System, Danville, PA 17822, USA.
| | - Helena Kuivaniemi
- Sigfried and Janet Weis Center for Research, Geisinger Health System, Danville, PA 17822, USA.
- Department of Surgery, Temple University School of Medicine, Philadelphia, PA 19140, USA.
| | - John H Lillvis
- Department of Ophthalmology, Wayne State University School of Medicine, Detroit, MI 48202, USA.
| | - James R Elmore
- Department of Vascular and Endovascular Surgery, Geisinger Health System, Danville, PA 17822, USA.
| | - Gerard Tromp
- Sigfried and Janet Weis Center for Research, Geisinger Health System, Danville, PA 17822, USA.
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Ryer EJ, Ronning KE, Erdman R, Schworer CM, Elmore JR, Peeler TC, Nevius CD, Lillvis JH, Garvin RP, Franklin DP, Kuivaniemi H, Tromp G. The potential role of DNA methylation in abdominal aortic aneurysms. Int J Mol Sci 2015; 16:11259-75. [PMID: 25993294 PMCID: PMC4463699 DOI: 10.3390/ijms160511259] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2014] [Accepted: 01/19/2015] [Indexed: 12/14/2022] Open
Abstract
Abdominal aortic aneurysm (AAA) is a complex disorder that has a significant impact on the aging population. While both genetic and environmental risk factors have been implicated in AAA formation, the precise genetic markers involved and the factors influencing their expression remain an area of ongoing investigation. DNA methylation has been previously used to study gene silencing in other inflammatory disorders and since AAA has an extensive inflammatory component, we sought to examine the genome-wide DNA methylation profiles in mononuclear blood cells of AAA cases and matched non-AAA controls. To this end, we collected blood samples and isolated mononuclear cells for DNA and RNA extraction from four all male groups: AAA smokers (n = 11), AAA non-smokers (n = 9), control smokers (n = 10) and control non-smokers (n = 11). Methylation data were obtained using the Illumina 450k Human Methylation Bead Chip and analyzed using the R language and multiple Bioconductor packages. Principal component analysis and linear analysis of CpG island subsets identified four regions with significant differences in methylation with respect to AAA: kelch-like family member 35 (KLHL35), calponin 2 (CNN2), serpin peptidase inhibitor clade B (ovalbumin) member 9 (SERPINB9), and adenylate cyclase 10 pseudogene 1 (ADCY10P1). Follow-up studies included RT-PCR and immunostaining for CNN2 and SERPINB9. These findings are novel and suggest DNA methylation may play a role in AAA pathobiology.
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Affiliation(s)
- Evan J Ryer
- Department of Vascular and Endovascular Surgery, Geisinger Health System, Danville, PA 17822, USA.
| | - Kaitryn E Ronning
- Sigfried and Janet Weis Center for Research, Geisinger Health System, Danville, PA 17822, USA.
- Department of Biology, Susquehanna University, Selinsgrove, PA 17870, USA.
| | - Robert Erdman
- Sigfried and Janet Weis Center for Research, Geisinger Health System, Danville, PA 17822, USA.
| | - Charles M Schworer
- Sigfried and Janet Weis Center for Research, Geisinger Health System, Danville, PA 17822, USA.
| | - James R Elmore
- Department of Vascular and Endovascular Surgery, Geisinger Health System, Danville, PA 17822, USA.
| | - Thomas C Peeler
- Department of Biology, Susquehanna University, Selinsgrove, PA 17870, USA.
| | - Christopher D Nevius
- Sigfried and Janet Weis Center for Research, Geisinger Health System, Danville, PA 17822, USA.
| | - John H Lillvis
- Department of Ophthalmology, Wayne State University School of Medicine, Detroit, MI 48202, USA.
| | - Robert P Garvin
- Department of Vascular and Endovascular Surgery, Geisinger Health System, Danville, PA 17822, USA.
| | - David P Franklin
- Department of Vascular and Endovascular Surgery, Geisinger Health System, Danville, PA 17822, USA.
| | - Helena Kuivaniemi
- Sigfried and Janet Weis Center for Research, Geisinger Health System, Danville, PA 17822, USA.
- Department of Surgery, Temple University School of Medicine, Philadelphia, PA 19140, USA.
| | - Gerard Tromp
- Sigfried and Janet Weis Center for Research, Geisinger Health System, Danville, PA 17822, USA.
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34
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Homoarginine in the renal and cardiovascular systems. Amino Acids 2015; 47:1703-13. [DOI: 10.1007/s00726-015-1993-2] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Accepted: 04/18/2015] [Indexed: 10/23/2022]
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35
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Courtois A, Nusgens BV, Hustinx R, Namur G, Gomez P, Kuivaniemi H, Defraigne JO, Colige AC, Sakalihasan N. Gene expression study in positron emission tomography-positive abdominal aortic aneurysms identifies CCL18 as a potential biomarker for rupture risk. Mol Med 2015; 20:697-706. [PMID: 25517227 DOI: 10.2119/molmed.2014.00065] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2014] [Accepted: 12/09/2014] [Indexed: 11/06/2022] Open
Abstract
Rupture of abdominal aortic aneurysm (AAA) is a cause of significant mortality and morbidity in aging populations. Uptake of 18-fluorodeoxyglucose (FDG) detected by positron emission tomography (PET) is observed in the wall of 12% of AAA (A+), with most of them being symptomatic. We previously showed that the metabolically active areas displayed adventitial inflammation, medial degeneration and molecular alterations prefacing wall rupture. The aim of this study was to identify new factors predictive of rupture. Transcriptomic analyses were performed in the media and adventitia layers from three types of samples: AAA with-out FDG uptake (A0) and with FDG uptake (A+), both at the positive spot (A+(Pos)) and at a paired distant negative site (A+(Neg)) of the same aneurysm. Follow-up studies included reverse-transcriptase-polymerase chain reaction (RT-PCR), immunohistochemical staining and enzyme-linked immunosorbent assay (ELISA). A large number of genes, including matrix metalloproteinases, collagens and cytokines as well as genes involved in osteochondral development, were differentially expressed in the A+(Pos) compared with A+(Neg). Moreover, a series of genes (notably CCL18) was differentially expressed both in the A+(Neg) and A+(Pos) compared with the A0. A significant increase of CCL18 was also found at the protein level in the aortic wall and in peripheral blood of A+ patients compared with A0. In conclusion, new factors, including CCL18, involved in the progression of AAA and, potentially, in their rupture were identified by a genome-wide analysis of PET-positive and -negative human aortic tissue samples. Further work is needed to study their role in AAA destabilization and weakening.
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Affiliation(s)
- Audrey Courtois
- Surgical Research Center, GIGA-Cardiovascular Science Unit, University of Liège, Liège, Belgium.,Laboratory of Connective Tissues Biology, GIGA-Research (GIGA-R), University of Liège, Liège, Belgium.,Department of Cardiovascular and Thoracic Surgery, University Hospital of Liège (CHU), University of Liège, Liège, Belgium
| | - Betty V Nusgens
- Laboratory of Connective Tissues Biology, GIGA-Research (GIGA-R), University of Liège, Liège, Belgium
| | - Roland Hustinx
- Department of Nuclear Medicine, University Hospital of Liège (CHU), University of Liège, Liège, Belgium
| | - Gauthier Namur
- Department of Nuclear Medicine, University Hospital of Liège (CHU), University of Liège, Liège, Belgium.,Department of Nuclear Medicine, St Joseph Hospital (CHC), Liège, Belgium
| | - Pierre Gomez
- Department of Nuclear Medicine, St Joseph Hospital (CHC), Liège, Belgium
| | - Helena Kuivaniemi
- The Sigfried and Janet Weis Center for Research, Geisinger Health System, Danville, Pennsylvania, United States of America.,Department of Surgery, Temple University School of Medicine, Philadelphia, Pennsylvania, United States of America
| | - Jean-Olivier Defraigne
- Department of Cardiovascular and Thoracic Surgery, University Hospital of Liège (CHU), University of Liège, Liège, Belgium
| | - Alain C Colige
- Laboratory of Connective Tissues Biology, GIGA-Research (GIGA-R), University of Liège, Liège, Belgium
| | - Natzi Sakalihasan
- Surgical Research Center, GIGA-Cardiovascular Science Unit, University of Liège, Liège, Belgium.,Department of Nuclear Medicine, University Hospital of Liège (CHU), University of Liège, Liège, Belgium
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36
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Association of polymorphisms of the receptor for advanced glycation end products gene and susceptibility to sporadic abdominal aortic aneurysm. BIOMED RESEARCH INTERNATIONAL 2015; 2015:394126. [PMID: 25789318 PMCID: PMC4348609 DOI: 10.1155/2015/394126] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2014] [Accepted: 01/30/2015] [Indexed: 12/16/2022]
Abstract
Accumulating evidence has suggested that receptor for advanced glycation end products (RAGE) is involved in the development and progression of human abdominal aortic aneurysms (AAAs). However, the association between RAGE gene polymorphisms and AAA has not yet been determined. The present study was aimed at analyzing the potential association between the RAGE gene polymorphisms and AAAs. A cohort of 381 patients and 436 age-matched healthy controls were genotyped to detect the three RAGE polymorphisms (-374 T/A, -429 T/C, and G82S) using SNaPshot. Our study demonstrated a significant difference in the genotype and allele frequencies of the RAGE G82S polymorphism between the AAA patients and the controls. Further stratification by gender and smoking status revealed that the presence of the RAGE 82S allele confers a higher risk for developing AAA in men and smokers. Moreover, AAA patients with the variant 82S allele of RAGE presented with reduced serum soluble RAGE (sRAGE) production, and this decrease was more significant in men and smokers with AAA. Our study provides preliminary evidence that the 82S allele of RAGE is a risk factor for AAA. This new piece of knowledge regarding RAGE may be clinically important for the prevention and therapy of AAAs.
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Cheng J, Koenig SN, Kuivaniemi HS, Garg V, Hans CP. Pharmacological inhibitor of notch signaling stabilizes the progression of small abdominal aortic aneurysm in a mouse model. J Am Heart Assoc 2014; 3:e001064. [PMID: 25349182 PMCID: PMC4338693 DOI: 10.1161/jaha.114.001064] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Background The progression of abdominal aortic aneurysm (AAA) involves a sustained influx of proinflammatory macrophages, which exacerbate tissue injury by releasing cytokines, chemokines, and matrix metalloproteinases. Previously, we showed that Notch deficiency reduces the development of AAA in the angiotensin II–induced mouse model by preventing infiltration of macrophages. Here, we examined whether Notch inhibition in this mouse model prevents progression of small AAA and whether these effects are associated with altered macrophage differentiation. Methods and Results Treatment with pharmacological Notch inhibitor (DAPT [N‐(N‐[3,5‐difluorophenacetyl]‐L‐alanyl)‐S‐phenylglycine t‐butyl ester]) at day 3 or 8 of angiotensin II infusion arrested the progression of AAA in Apoe−/− mice, as demonstrated by a decreased luminal diameter and aortic width. The abdominal aortas of Apoe−/− mice treated with DAPT showed decreased expression of matrix metalloproteinases and presence of elastin precursors including tropoelastin and hyaluronic acid. Marginal adventitial thickening observed in the aorta of DAPT‐treated Apoe−/− mice was not associated with increased macrophage content, as observed in the mice treated with angiotensin II alone. Instead, DAPT‐treated abdominal aortas showed increased expression of Cd206‐positive M2 macrophages and decreased expression of Il12‐positive M1 macrophages. Notch1 deficiency promoted M2 differentiation of macrophages by upregulating transforming growth factor β2 in bone marrow–derived macrophages at basal levels and in response to IL4. Protein expression of transforming growth factor β2 and its downstream effector pSmad2 also increased in DAPT‐treated Apoe−/− mice, indicating a potential link between Notch and transforming growth factor β2 signaling in the M2 differentiation of macrophages. Conclusions Pharmacological inhibitor of Notch signaling prevents the progression of AAA by macrophage differentiation–dependent mechanisms. The study also provides insights for novel therapeutic strategies to prevent the progression of small AAA.
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Affiliation(s)
- Jeeyun Cheng
- Center for Cardiovascular and Pulmonary Research and The Heart Center, Nationwide Children's Hospital, The Ohio State University, Columbus, OH (J.C., S.N.K., V.G., C.P.H.)
| | - Sara N Koenig
- Center for Cardiovascular and Pulmonary Research and The Heart Center, Nationwide Children's Hospital, The Ohio State University, Columbus, OH (J.C., S.N.K., V.G., C.P.H.)
| | - Helena S Kuivaniemi
- The Sigfried and Janet Weis Center for Research, Geisinger Health System, Danville, PA (H.S.K.)
| | - Vidu Garg
- Center for Cardiovascular and Pulmonary Research and The Heart Center, Nationwide Children's Hospital, The Ohio State University, Columbus, OH (J.C., S.N.K., V.G., C.P.H.) Department of Pediatrics, The Ohio State University, Columbus, OH (V.G., C.P.H.) Department of Molecular Genetics, The Ohio State University, Columbus, OH (V.G.)
| | - Chetan P Hans
- Center for Cardiovascular and Pulmonary Research and The Heart Center, Nationwide Children's Hospital, The Ohio State University, Columbus, OH (J.C., S.N.K., V.G., C.P.H.) Department of Pediatrics, The Ohio State University, Columbus, OH (V.G., C.P.H.)
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38
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Estrelinha M, Hinterseher I, Kuivaniemi H. Gene expression studies in human abdominal aortic aneurysm. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.rvm.2014.02.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Kuivaniemi H, Ryer EJ, Elmore JR, Hinterseher I, Smelser DT, Tromp G. Update on abdominal aortic aneurysm research: from clinical to genetic studies. SCIENTIFICA 2014; 2014:564734. [PMID: 24834361 PMCID: PMC4009235 DOI: 10.1155/2014/564734] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/17/2013] [Accepted: 02/02/2014] [Indexed: 06/03/2023]
Abstract
An abdominal aortic aneurysm (AAA) is a dilatation of the abdominal aorta with a diameter of at least 3.0 cm. AAAs are often asymptomatic and are discovered as incidental findings in imaging studies or when the AAA ruptures leading to a medical emergency. AAAs are more common in males than females, in individuals of European ancestry, and in those over 65 years of age. Smoking is the most important environmental risk factor. In addition, a positive family history of AAA increases the person's risk for AAA. Interestingly, diabetes has been shown to be a protective factor for AAA in many large studies. Hallmarks of AAA pathogenesis include inflammation, vascular smooth muscle cell apoptosis, extracellular matrix degradation, and oxidative stress. Autoimmunity may also play a role in AAA development and progression. In this Outlook paper, we summarize our recent studies on AAA including clinical studies related to surgical repair of AAA and genetic risk factor and large-scale gene expression studies. We conclude with a discussion on our research projects using large data sets available through electronic medical records and biobanks.
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Affiliation(s)
- Helena Kuivaniemi
- The Sigfried and Janet Weis Center for Research, Geisinger Health System, Danville, PA, USA
- Department of Surgery, Temple University School of Medicine, Philadelphia, PA, USA
| | - Evan J. Ryer
- Department of Surgery, Temple University School of Medicine, Philadelphia, PA, USA
- Department of Vascular and Endovascular Surgery, Geisinger Health System, Danville, PA, USA
| | - James R. Elmore
- Department of Surgery, Temple University School of Medicine, Philadelphia, PA, USA
- Department of Vascular and Endovascular Surgery, Geisinger Health System, Danville, PA, USA
| | - Irene Hinterseher
- Department of General, Visceral, Vascular and Thoracic Surgery, Charité Universitätsmedizin Berlin, Charité Campus Mitte, Berlin, Germany
| | - Diane T. Smelser
- The Sigfried and Janet Weis Center for Research, Geisinger Health System, Danville, PA, USA
| | - Gerard Tromp
- The Sigfried and Janet Weis Center for Research, Geisinger Health System, Danville, PA, USA
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Abstract
PURPOSE OF REVIEW Family history is a risk factor for abdominal aortic aneurysm (AAA), suggesting that genetic factors play an important role in AAA development, growth and rupture. Identification of these factors could improve understanding of the AAA pathogenesis and be useful to identify at risk individuals. RECENT FINDINGS Many approaches are used to examine genetic determinants of AAA, including genome-wide association studies (GWAS) and DNA linkage studies. Two recent GWAS have identified genetic markers associated with an increased risk of AAA located within the genes for DAB2 interacting protein (DAB2IP) and low density lipoprotein receptor-related protein 1 (LRP1). In addition, a marker on 9p21 associated with other vascular diseases is also strongly associated with AAA. The exact means by which these genes currently control AAA risk is not clear; however, in support of these findings, mice with vascular smooth muscle cell deficiency of Lrp1 are prone to aneurysm development. Further current work is concentrated on other molecular mechanisms relevant in AAA pathogenesis, including noncoding RNAs such as microRNAs. SUMMARY Current studies assessing genetic mechanisms for AAA have significant potential to identify novel mechanisms involved in AAA pathogenesis of high relevance to better clinical management of the disease.
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Kuivaniemi H, Sakalihasan N, Lederle FA, Jones GT, Defraigne JO, Labropoulos N, Legrand V, Michel JB, Nienaber C, Radermecker MA, Elefteriades JA. New Insights Into Aortic Diseases: A Report From the Third International Meeting on Aortic Diseases (IMAD3). AORTA (STAMFORD, CONN.) 2013; 1:23-39. [PMID: 26798669 PMCID: PMC4682695 DOI: 10.12945/j.aorta.2013.13.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2013] [Accepted: 03/08/2013] [Indexed: 12/11/2022]
Abstract
The current state of research and treatment on aortic diseases was discussed in the "3rd International Meeting on Aortic Diseases" (IMAD3) held on October 4-6, 2012, in Liège, Belgium. The 3-day meeting covered a wide range of topics related to thoracic aortic aneurysms and dissections, abdominal aortic aneurysms, and valvular diseases. It brought together clinicians and basic scientists and provided an excellent opportunity to discuss future collaborative research projects for genetic, genomics, and biomarker studies, as well as clinical trials. Although great progress has been made in the past few years, there are still a large number of unsolved questions about aortic diseases. Obtaining answers to the key questions will require innovative, interdisciplinary approaches that integrate information from epidemiological, genetic, molecular biology, and bioengineering studies on humans and animal models. It is more evident than ever that multicenter collaborations are needed to accomplish these goals.
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Affiliation(s)
- Helena Kuivaniemi
- Sigfried and Janet Weis Center for Research, Geisinger Clinic, Danville, Pennsylvania
| | | | - Frank A. Lederle
- Minneapolis Center for Epidemiological and Clinical Research, Department of Medicine (III-0), VA Medical Center, Minneapolis, Minnesota
| | | | | | - Nicos Labropoulos
- Department of Surgery, Stony Brook University Medical Center, Stony Brook, New York
| | - Victor Legrand
- Cardiology Departments, University Hospital of Liège, CHU, Liège, Belgium
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Boytard L, Spear R, Chinetti-Gbaguidi G, Acosta-Martin AE, Vanhoutte J, Lamblin N, Staels B, Amouyel P, Haulon S, Pinet F. Role of Proinflammatory CD68
+
Mannose Receptor
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Macrophages in Peroxiredoxin-1 Expression and in Abdominal Aortic Aneurysms in Humans. Arterioscler Thromb Vasc Biol 2013; 33:431-8. [DOI: 10.1161/atvbaha.112.300663] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Ludovic Boytard
- From the INSERM, U744 (L.B., R.S., A.E.A.-M., N.L., P.A., F.P.), INSERM, U1011 (G.C.-G., J.V, B.S.), and INSERM, U1008 (S.H.), Lille, France; Institut Pasteur de Lille, Lille, France (L.B., R.S., G.C.-G., A.E.A.-M., J.V., N.L., B.S., P.A., F.P.); Univ Lille Nord de France, IFR142, Lille, France (L.B., R.S., A.E.A.-M., N.L., P.A., F.P.); Centre Hospitalier Régional et Universitaire de Lille, Lille, France (R.S., N.L., P.A., S.H., F.P.); and Univ Lille Nord de France, IFR114, Lille, France (G.C.-G., J
| | - Rafaelle Spear
- From the INSERM, U744 (L.B., R.S., A.E.A.-M., N.L., P.A., F.P.), INSERM, U1011 (G.C.-G., J.V, B.S.), and INSERM, U1008 (S.H.), Lille, France; Institut Pasteur de Lille, Lille, France (L.B., R.S., G.C.-G., A.E.A.-M., J.V., N.L., B.S., P.A., F.P.); Univ Lille Nord de France, IFR142, Lille, France (L.B., R.S., A.E.A.-M., N.L., P.A., F.P.); Centre Hospitalier Régional et Universitaire de Lille, Lille, France (R.S., N.L., P.A., S.H., F.P.); and Univ Lille Nord de France, IFR114, Lille, France (G.C.-G., J
| | - Giulia Chinetti-Gbaguidi
- From the INSERM, U744 (L.B., R.S., A.E.A.-M., N.L., P.A., F.P.), INSERM, U1011 (G.C.-G., J.V, B.S.), and INSERM, U1008 (S.H.), Lille, France; Institut Pasteur de Lille, Lille, France (L.B., R.S., G.C.-G., A.E.A.-M., J.V., N.L., B.S., P.A., F.P.); Univ Lille Nord de France, IFR142, Lille, France (L.B., R.S., A.E.A.-M., N.L., P.A., F.P.); Centre Hospitalier Régional et Universitaire de Lille, Lille, France (R.S., N.L., P.A., S.H., F.P.); and Univ Lille Nord de France, IFR114, Lille, France (G.C.-G., J
| | - Adelina E. Acosta-Martin
- From the INSERM, U744 (L.B., R.S., A.E.A.-M., N.L., P.A., F.P.), INSERM, U1011 (G.C.-G., J.V, B.S.), and INSERM, U1008 (S.H.), Lille, France; Institut Pasteur de Lille, Lille, France (L.B., R.S., G.C.-G., A.E.A.-M., J.V., N.L., B.S., P.A., F.P.); Univ Lille Nord de France, IFR142, Lille, France (L.B., R.S., A.E.A.-M., N.L., P.A., F.P.); Centre Hospitalier Régional et Universitaire de Lille, Lille, France (R.S., N.L., P.A., S.H., F.P.); and Univ Lille Nord de France, IFR114, Lille, France (G.C.-G., J
| | - Jonathan Vanhoutte
- From the INSERM, U744 (L.B., R.S., A.E.A.-M., N.L., P.A., F.P.), INSERM, U1011 (G.C.-G., J.V, B.S.), and INSERM, U1008 (S.H.), Lille, France; Institut Pasteur de Lille, Lille, France (L.B., R.S., G.C.-G., A.E.A.-M., J.V., N.L., B.S., P.A., F.P.); Univ Lille Nord de France, IFR142, Lille, France (L.B., R.S., A.E.A.-M., N.L., P.A., F.P.); Centre Hospitalier Régional et Universitaire de Lille, Lille, France (R.S., N.L., P.A., S.H., F.P.); and Univ Lille Nord de France, IFR114, Lille, France (G.C.-G., J
| | - Nicolas Lamblin
- From the INSERM, U744 (L.B., R.S., A.E.A.-M., N.L., P.A., F.P.), INSERM, U1011 (G.C.-G., J.V, B.S.), and INSERM, U1008 (S.H.), Lille, France; Institut Pasteur de Lille, Lille, France (L.B., R.S., G.C.-G., A.E.A.-M., J.V., N.L., B.S., P.A., F.P.); Univ Lille Nord de France, IFR142, Lille, France (L.B., R.S., A.E.A.-M., N.L., P.A., F.P.); Centre Hospitalier Régional et Universitaire de Lille, Lille, France (R.S., N.L., P.A., S.H., F.P.); and Univ Lille Nord de France, IFR114, Lille, France (G.C.-G., J
| | - Bart Staels
- From the INSERM, U744 (L.B., R.S., A.E.A.-M., N.L., P.A., F.P.), INSERM, U1011 (G.C.-G., J.V, B.S.), and INSERM, U1008 (S.H.), Lille, France; Institut Pasteur de Lille, Lille, France (L.B., R.S., G.C.-G., A.E.A.-M., J.V., N.L., B.S., P.A., F.P.); Univ Lille Nord de France, IFR142, Lille, France (L.B., R.S., A.E.A.-M., N.L., P.A., F.P.); Centre Hospitalier Régional et Universitaire de Lille, Lille, France (R.S., N.L., P.A., S.H., F.P.); and Univ Lille Nord de France, IFR114, Lille, France (G.C.-G., J
| | - Philippe Amouyel
- From the INSERM, U744 (L.B., R.S., A.E.A.-M., N.L., P.A., F.P.), INSERM, U1011 (G.C.-G., J.V, B.S.), and INSERM, U1008 (S.H.), Lille, France; Institut Pasteur de Lille, Lille, France (L.B., R.S., G.C.-G., A.E.A.-M., J.V., N.L., B.S., P.A., F.P.); Univ Lille Nord de France, IFR142, Lille, France (L.B., R.S., A.E.A.-M., N.L., P.A., F.P.); Centre Hospitalier Régional et Universitaire de Lille, Lille, France (R.S., N.L., P.A., S.H., F.P.); and Univ Lille Nord de France, IFR114, Lille, France (G.C.-G., J
| | - Stephan Haulon
- From the INSERM, U744 (L.B., R.S., A.E.A.-M., N.L., P.A., F.P.), INSERM, U1011 (G.C.-G., J.V, B.S.), and INSERM, U1008 (S.H.), Lille, France; Institut Pasteur de Lille, Lille, France (L.B., R.S., G.C.-G., A.E.A.-M., J.V., N.L., B.S., P.A., F.P.); Univ Lille Nord de France, IFR142, Lille, France (L.B., R.S., A.E.A.-M., N.L., P.A., F.P.); Centre Hospitalier Régional et Universitaire de Lille, Lille, France (R.S., N.L., P.A., S.H., F.P.); and Univ Lille Nord de France, IFR114, Lille, France (G.C.-G., J
| | - Florence Pinet
- From the INSERM, U744 (L.B., R.S., A.E.A.-M., N.L., P.A., F.P.), INSERM, U1011 (G.C.-G., J.V, B.S.), and INSERM, U1008 (S.H.), Lille, France; Institut Pasteur de Lille, Lille, France (L.B., R.S., G.C.-G., A.E.A.-M., J.V., N.L., B.S., P.A., F.P.); Univ Lille Nord de France, IFR142, Lille, France (L.B., R.S., A.E.A.-M., N.L., P.A., F.P.); Centre Hospitalier Régional et Universitaire de Lille, Lille, France (R.S., N.L., P.A., S.H., F.P.); and Univ Lille Nord de France, IFR114, Lille, France (G.C.-G., J
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Pahl MC, Derr K, Gäbel G, Hinterseher I, Elmore JR, Schworer CM, Peeler TC, Franklin DP, Gray JL, Carey DJ, Tromp G, Kuivaniemi H. MicroRNA expression signature in human abdominal aortic aneurysms. BMC Med Genomics 2012; 5:25. [PMID: 22704053 PMCID: PMC3507654 DOI: 10.1186/1755-8794-5-25] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2012] [Accepted: 05/31/2012] [Indexed: 01/25/2023] Open
Abstract
BACKGROUND Abdominal aortic aneurysm (AAA) is a dilatation of the aorta affecting most frequently elderly men. Histologically AAAs are characterized by inflammation, vascular smooth muscle cell apoptosis, and extracellular matrix degradation. The mechanisms of AAA formation, progression, and rupture are currently poorly understood. A previous mRNA expression study revealed a large number of differentially expressed genes between AAA and non-aneurysmal control aortas. MicroRNAs (miRNAs), small non-coding RNAs that are post-transcriptional regulators of gene expression, could provide a mechanism for the differential expression of genes in AAA. METHODS To determine differences in miRNA levels between AAA (n = 5) and control (n = 5) infrarenal aortic tissues, a microarray study was carried out. Results were adjusted using Benjamini-Hochberg correction (adjusted p < 0.05). Real-time quantitative RT-PCR (qRT-PCR) assays with an independent set of 36 AAA and seven control tissues were used for validation. Potential gene targets were retrieved from miRNA target prediction databases Pictar, TargetScan, and MiRTarget2. Networks from the target gene set were generated and examined using the network analysis programs, CytoScape® and Ingenuity Pathway Core Analysis®. RESULTS A microarray study identified eight miRNAs with significantly different expression levels between AAA and controls (adjusted p < 0.05). Real-time qRT-PCR assays validated the findings for five of the eight miRNAs. A total of 222 predicted miRNA target genes known to be differentially expressed in AAA based on a prior mRNA microarray study were identified. Bioinformatic analyses revealed that several target genes are involved in apoptosis and activation of T cells. CONCLUSIONS Our genome-wide approach revealed several differentially expressed miRNAs in human AAA tissue suggesting that miRNAs play a role in AAA pathogenesis.
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Affiliation(s)
- Matthew C Pahl
- The Sigfried and Janet Weis Center for Research, Geisinger Clinic, 100 North Academy Avenue, Pennsylvania, 17822-2610, USA
- Department of Biology, Susquehanna University, Selinsgrove, PA, USA
| | - Kimberly Derr
- The Sigfried and Janet Weis Center for Research, Geisinger Clinic, 100 North Academy Avenue, Pennsylvania, 17822-2610, USA
| | - Gabor Gäbel
- Department of Visceral, Thoracic and Vascular Surgery, Technical University of Dresden, Dresden, Germany
| | - Irene Hinterseher
- Department of Visceral, Thoracic and Vascular Surgery, Technical University of Dresden, Dresden, Germany
- Department of General, Visceral, Vascular and Thoracic Surgery, Charité Universitätsmedizin, Charité Campus Mitte, Berlin, Germany
| | - James R Elmore
- Department of Vascular and Endovascular Surgery, Geisinger Clinic, Danville, PA, USA
| | - Charles M Schworer
- The Sigfried and Janet Weis Center for Research, Geisinger Clinic, 100 North Academy Avenue, Pennsylvania, 17822-2610, USA
| | - Thomas C Peeler
- Department of Biology, Susquehanna University, Selinsgrove, PA, USA
| | - David P Franklin
- Department of Vascular and Endovascular Surgery, Geisinger Clinic, Danville, PA, USA
| | - John L Gray
- Department of Vascular and Endovascular Surgery, Geisinger Clinic, Danville, PA, USA
| | - David J Carey
- The Sigfried and Janet Weis Center for Research, Geisinger Clinic, 100 North Academy Avenue, Pennsylvania, 17822-2610, USA
| | - Gerard Tromp
- The Sigfried and Janet Weis Center for Research, Geisinger Clinic, 100 North Academy Avenue, Pennsylvania, 17822-2610, USA
| | - Helena Kuivaniemi
- The Sigfried and Janet Weis Center for Research, Geisinger Clinic, 100 North Academy Avenue, Pennsylvania, 17822-2610, USA
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