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Shen YH, LeMaire SA, Webb NR, Cassis LA, Daugherty A, Lu HS. Aortic Aneurysms and Dissections Series. Arterioscler Thromb Vasc Biol 2020; 40:e37-e46. [PMID: 32101472 DOI: 10.1161/atvbaha.120.313991] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The aortic wall is composed of highly dynamic cell populations and extracellular matrix. In response to changes in the biomechanical environment, aortic cells and extracellular matrix modulate their structure and functions to increase aortic wall strength and meet the hemodynamic demand. Compromise in the structural and functional integrity of aortic components leads to aortic degeneration, biomechanical failure, and the development of aortic aneurysms and dissections (AAD). A better understanding of the molecular pathogenesis of AAD will facilitate the development of effective medications to treat these conditions. Here, we summarize recent findings on AAD published in ATVB. In this issue, we focus on the dynamics of aortic cells and extracellular matrix in AAD; in the next issue, we will focus on the role of signaling pathways in AAD.
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Affiliation(s)
- Ying H Shen
- From the Division of Cardiothoracic Surgery, Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, TX (Y.H.S., S.A.L.).,Department of Cardiovascular Surgery, Texas Heart Institute, Houston (Y.H.S., S.A.L.)
| | - Scott A LeMaire
- From the Division of Cardiothoracic Surgery, Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, TX (Y.H.S., S.A.L.).,Department of Cardiovascular Surgery, Texas Heart Institute, Houston (Y.H.S., S.A.L.)
| | - Nancy R Webb
- Department of Pharmacology and Nutritional Sciences (N.R.W., L.A.C.), University of Kentucky, Lexington
| | - Lisa A Cassis
- Department of Pharmacology and Nutritional Sciences (N.R.W., L.A.C.), University of Kentucky, Lexington
| | - Alan Daugherty
- Department of Physiology and Saha Cardiovascular Research Center (A.D., H.S.L.), University of Kentucky, Lexington
| | - Hong S Lu
- Department of Physiology and Saha Cardiovascular Research Center (A.D., H.S.L.), University of Kentucky, Lexington
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Davis FM, Daugherty A, Lu HS. Updates of Recent Aortic Aneurysm Research. Arterioscler Thromb Vasc Biol 2020; 39:e83-e90. [PMID: 30811252 DOI: 10.1161/atvbaha.119.312000] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Frank M Davis
- From the Department of Surgery, University of Michigan, Ann Arbor (F.M.D.)
| | - Alan Daugherty
- Saha Cardiovascular Research Center (A.D., H.S.L.), University of Kentucky, Lexington.,Department of Physiology (A.D., H.S.L.), University of Kentucky, Lexington
| | - Hong S Lu
- Saha Cardiovascular Research Center (A.D., H.S.L.), University of Kentucky, Lexington.,Department of Physiology (A.D., H.S.L.), University of Kentucky, Lexington
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Ding X, Chen J, Wu C, Wang G, Zhou C, Chen S, Wang K, Zhang A, Ye P, Wu J, Chen S, Zhang H, Xu K, Wang S, Xia J. Nucleotide-Binding Oligomerization Domain-Like Receptor Protein 3 Deficiency in Vascular Smooth Muscle Cells Prevents Arteriovenous Fistula Failure Despite Chronic Kidney Disease. J Am Heart Assoc 2020; 8:e011211. [PMID: 30587058 PMCID: PMC6405733 DOI: 10.1161/jaha.118.011211] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Background The arteriovenous fistula (AVF) is the preferred hemodialysis access for patients with chronic kidney disease. Chronic kidney disease can increase neointima formation, which greatly contributes to AVF failure by an unknown mechanism. Our study aimed to determine the role of nucleotide‐binding oligomerization domain‐like receptor protein 3 (NLRP3) in neointima formation induced by experimental AVFs in the presence of chronic kidney disease. Methods and Results From our findings, NLRP3 was upregulated in the intimal lesions of AVFs in both uremic mice and patients. Smooth muscle–specific knockout NLRP3 mice exhibited markedly decreased neointima formation in the outflow vein of AVFs. Compared with primary vascular smooth muscle cells isolated from control mice, those isolated from smooth muscle–specific knockout NLRP3 mice showed compromised proliferation, migration, phenotypic switching, and a weakened ability to activate mononuclear macrophages. To identify how NLRP3 functions, several small‐molecule inhibitors were used. The results showed that NLRP3 regulates smooth muscle cell proliferation and migration through Smad2/3 phosphorylation rather than through caspase‐1/interleukin‐1 signaling. Unexpectedly, the selective NLRP3‐inflammasome inhibitor MCC950 also repressed Smad2/3 phosphorylation and relieved chronic kidney disease–promoted AVF failure independent of macrophages. Conclusions Our findings suggest that NLRP3 in vascular smooth muscle cells may play a crucial role in uremia‐associated AVF failure and may be a promising therapeutic target for the treatment of AVF failure.
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Affiliation(s)
- Xiangchao Ding
- 1 Department of Cardiovascular Surgery Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Jiuling Chen
- 1 Department of Cardiovascular Surgery Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Chuangyan Wu
- 1 Department of Cardiovascular Surgery Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China.,2 Department of Thoracic Surgery Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Guohua Wang
- 1 Department of Cardiovascular Surgery Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Cheng Zhou
- 1 Department of Cardiovascular Surgery Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Shanshan Chen
- 3 Key Laboratory for Molecular Diagnosis of Hubei Province Central Hospital of Wuhan Tongji Medical College Huazhong University of Science and Technology Wuhan China.,4 Central Laboratory Central Hospital of Wuhan Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Ke Wang
- 6 Department of Respiratory and Critical Care Medicine Tongji Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Anchen Zhang
- 5 Department of Cardiovascular Medicine Central Hospital of Wuhan Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Ping Ye
- 5 Department of Cardiovascular Medicine Central Hospital of Wuhan Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Jie Wu
- 1 Department of Cardiovascular Surgery Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Shanshan Chen
- 1 Department of Cardiovascular Surgery Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Hao Zhang
- 1 Department of Cardiovascular Surgery Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Kaiying Xu
- 2 Department of Thoracic Surgery Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Sihua Wang
- 2 Department of Thoracic Surgery Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Jiahong Xia
- 1 Department of Cardiovascular Surgery Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China
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Targeting endothelial thioredoxin-interacting protein (TXNIP) protects from metabolic disorder-related impairment of vascular function and post-ischemic revascularisation. Angiogenesis 2020; 23:249-264. [PMID: 31900750 DOI: 10.1007/s10456-019-09704-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Accepted: 12/14/2019] [Indexed: 12/12/2022]
Abstract
INTRODUCTION Although thioredoxin-interacting protein (TXNIP) is involved in a variety of biological functions, the contribution of endothelial TXNIP has not been well-defined in regards to endothelial and vascular function or in post-ischemic revascularisation. We postulated that inhibition of endothelial TXNIP with siRNA or in a Cre-LoxP system could be involved in protection from high fat, high protein, low carbohydrate (HFHPLC) diet-induced oxidative stress and endothelial dysfunction, leading to vascular damage and impaired revascularisation in vivo. METHODS AND RESULTS To investigate the role of endothelial TXNIP, the TXNIP gene was deleted in endothelial cells using anti-TXNIP siRNA treatment or the Cre-LoxP system. Murine models were fed a HFHPLC diet, known to induce metabolic disorders. Endothelial TXNIP targeting resulted in protection against metabolic disorder-related endothelial oxidative stress and endothelial dysfunction. This protective effect mitigates media cell loss induced by metabolic disorders and hampered metabolic disorder-related vascular dysfunction assessed by aortic reactivity and distensibility. In aortic ring cultures, metabolic disorders impaired vessel sprouting and this alteration was alleviated by deletion of endothelial TXNIP. When subjected to ischemia, mice fed a HFHPLC diet exhibited defective post-ischemic angiogenesis and impaired blood flow recovery in hind limb ischemia. However, reducing endothelial TXNIP rescued metabolic disorder-related impairment of ischemia-induced revascularisation. CONCLUSION Collectively, these results show that targeting endothelial TXNIP in metabolic disorders is essential to maintaining endothelial function, vascular function and improving ischemia-induced revascularisation, making TXNIP a potential therapeutic target for therapy of vascular complications related to metabolic disorders.
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Luo W, Wang Y, Zhang L, Ren P, Zhang C, Li Y, Azares AR, Zhang M, Guo J, Ghaghada KB, Starosolski ZA, Rajapakshe K, Coarfa C, Li Y, Chen R, Fujiwara K, Abe JI, Coselli JS, Milewicz DM, LeMaire SA, Shen YH. Critical Role of Cytosolic DNA and Its Sensing Adaptor STING in Aortic Degeneration, Dissection, and Rupture. Circulation 2019; 141:42-66. [PMID: 31887080 DOI: 10.1161/circulationaha.119.041460] [Citation(s) in RCA: 136] [Impact Index Per Article: 27.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Sporadic aortic aneurysm and dissection (AAD), caused by progressive aortic smooth muscle cell (SMC) loss and extracellular matrix degradation, is a highly lethal condition. Identifying mechanisms that drive aortic degeneration is a crucial step in developing an effective pharmacologic treatment to prevent disease progression. Recent evidence has indicated that cytosolic DNA and abnormal activation of the cytosolic DNA sensing adaptor STING (stimulator of interferon genes) play a critical role in vascular inflammation and destruction. Here, we examined the involvement of this mechanism in aortic degeneration and sporadic AAD formation. METHODS The presence of cytosolic DNA in aortic cells and activation of the STING pathway were examined in aortic tissues from patients with sporadic ascending thoracic AAD. The role of STING in AAD development was evaluated in Sting-deficient (Stinggt/gt) mice in a sporadic AAD model induced by challenging mice with a combination of a high-fat diet and angiotensin II. We also examined the direct effects of STING on SMC death and macrophage activation in vitro. RESULTS In human sporadic AAD tissues, we observed the presence of cytosolic DNA in SMCs and macrophages and significant activation of the STING pathway. In the sporadic AAD model, Stinggt/gt mice showed significant reductions in challenge-induced aortic enlargement, dissection, and rupture in both the thoracic and abdominal aortic regions. Single-cell transcriptome analysis revealed that aortic challenge in wild-type mice induced the DNA damage response, the inflammatory response, dedifferentiation and cell death in SMCs, and matrix metalloproteinase expression in macrophages. These changes were attenuated in challenged Stinggt/gt mice. Mechanistically, nuclear and mitochondrial DNA damage in SMCs and the subsequent leak of DNA to the cytosol activated STING signaling, which induced cell death through apoptosis and necroptosis. In addition, DNA from damaged SMCs was engulfed by macrophages in which it activated STING and its target interferon regulatory factor 3, which directly induced matrix metalloproteinase-9 expression. We also found that pharmacologically inhibiting STING activation partially prevented AAD development. CONCLUSIONS Our findings indicate that the presence of cytosolic DNA and subsequent activation of cytosolic DNA sensing adaptor STING signaling represent a key mechanism in aortic degeneration and that targeting STING may prevent sporadic AAD development.
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Affiliation(s)
- Wei Luo
- Division of Cardiothoracic Surgery, Michael E. DeBakey Department of Surgery (W.L., Y.W., L.Z., P.R., C.Z., Yanming Li, M.Z., J.G., J.S.C., S.A.L., Y.H.S.), Baylor College of Medicine, Houston, TX
- Department of Cardiovascular Surgery (W.L., Y.W., L.Z., P.R., C.Z., Yanming Li, J.G., J.S.C., S.A.L., Y.H.S.), Texas Heart Institute, Houston
| | - Yidan Wang
- Division of Cardiothoracic Surgery, Michael E. DeBakey Department of Surgery (W.L., Y.W., L.Z., P.R., C.Z., Yanming Li, M.Z., J.G., J.S.C., S.A.L., Y.H.S.), Baylor College of Medicine, Houston, TX
- Department of Cardiovascular Surgery (W.L., Y.W., L.Z., P.R., C.Z., Yanming Li, J.G., J.S.C., S.A.L., Y.H.S.), Texas Heart Institute, Houston
| | - Lin Zhang
- Division of Cardiothoracic Surgery, Michael E. DeBakey Department of Surgery (W.L., Y.W., L.Z., P.R., C.Z., Yanming Li, M.Z., J.G., J.S.C., S.A.L., Y.H.S.), Baylor College of Medicine, Houston, TX
- Department of Cardiovascular Surgery (W.L., Y.W., L.Z., P.R., C.Z., Yanming Li, J.G., J.S.C., S.A.L., Y.H.S.), Texas Heart Institute, Houston
| | - Pingping Ren
- Division of Cardiothoracic Surgery, Michael E. DeBakey Department of Surgery (W.L., Y.W., L.Z., P.R., C.Z., Yanming Li, M.Z., J.G., J.S.C., S.A.L., Y.H.S.), Baylor College of Medicine, Houston, TX
- Department of Cardiovascular Surgery (W.L., Y.W., L.Z., P.R., C.Z., Yanming Li, J.G., J.S.C., S.A.L., Y.H.S.), Texas Heart Institute, Houston
| | - Chen Zhang
- Division of Cardiothoracic Surgery, Michael E. DeBakey Department of Surgery (W.L., Y.W., L.Z., P.R., C.Z., Yanming Li, M.Z., J.G., J.S.C., S.A.L., Y.H.S.), Baylor College of Medicine, Houston, TX
- Department of Cardiovascular Surgery (W.L., Y.W., L.Z., P.R., C.Z., Yanming Li, J.G., J.S.C., S.A.L., Y.H.S.), Texas Heart Institute, Houston
| | - Yanming Li
- Division of Cardiothoracic Surgery, Michael E. DeBakey Department of Surgery (W.L., Y.W., L.Z., P.R., C.Z., Yanming Li, M.Z., J.G., J.S.C., S.A.L., Y.H.S.), Baylor College of Medicine, Houston, TX
- Department of Cardiovascular Surgery (W.L., Y.W., L.Z., P.R., C.Z., Yanming Li, J.G., J.S.C., S.A.L., Y.H.S.), Texas Heart Institute, Houston
| | - Alon R Azares
- Molecular Cardiology Research Lab (A.R.A.), Texas Heart Institute, Houston
| | - Michelle Zhang
- Division of Cardiothoracic Surgery, Michael E. DeBakey Department of Surgery (W.L., Y.W., L.Z., P.R., C.Z., Yanming Li, M.Z., J.G., J.S.C., S.A.L., Y.H.S.), Baylor College of Medicine, Houston, TX
| | - Jiao Guo
- Division of Cardiothoracic Surgery, Michael E. DeBakey Department of Surgery (W.L., Y.W., L.Z., P.R., C.Z., Yanming Li, M.Z., J.G., J.S.C., S.A.L., Y.H.S.), Baylor College of Medicine, Houston, TX
- Department of Cardiovascular Surgery (W.L., Y.W., L.Z., P.R., C.Z., Yanming Li, J.G., J.S.C., S.A.L., Y.H.S.), Texas Heart Institute, Houston
| | - Ketan B Ghaghada
- Department of Pediatric Radiology, Texas Children's Hospital, Houston (K.B.G., Z.A.S.)
| | | | - Kimal Rajapakshe
- Department of Molecular and Cellular Biology (K.R., C.C.), Baylor College of Medicine, Houston, TX
| | - Cristian Coarfa
- Dan L. Duncan Cancer Center (C.C.), Baylor College of Medicine, Houston, TX
| | - Yumei Li
- Human Genome Sequencing Center (Yumei Li, R.C.), Baylor College of Medicine, Houston, TX
| | - Rui Chen
- Department of Biochemistry and Molecular Biology (R.C.), Baylor College of Medicine, Houston, TX
- Department of Molecular and Human Genetics (R.C.), Baylor College of Medicine, Houston, TX
- Human Genome Sequencing Center (Yumei Li, R.C.), Baylor College of Medicine, Houston, TX
| | - Keigi Fujiwara
- Department of Biostatistics and Division of Internal Medicine, Department of Cardiology Research, The University of Texas MD Anderson Cancer Center, Houston (K.F., J.A.)
| | - Jun-Ichi Abe
- Department of Biostatistics and Division of Internal Medicine, Department of Cardiology Research, The University of Texas MD Anderson Cancer Center, Houston (K.F., J.A.)
| | - Joseph S Coselli
- Cardiovascular Research Institute (J.S.C., S.A.L., Y.H.S.), Baylor College of Medicine, Houston, TX
- Division of Cardiothoracic Surgery, Michael E. DeBakey Department of Surgery (W.L., Y.W., L.Z., P.R., C.Z., Yanming Li, M.Z., J.G., J.S.C., S.A.L., Y.H.S.), Baylor College of Medicine, Houston, TX
- Department of Cardiovascular Surgery (W.L., Y.W., L.Z., P.R., C.Z., Yanming Li, J.G., J.S.C., S.A.L., Y.H.S.), Texas Heart Institute, Houston
| | - Dianna M Milewicz
- Division of Medical Genetics, Department of Internal Medicine, The University of Texas Health Science Center at Houston (D.M.M.)
| | - Scott A LeMaire
- Cardiovascular Research Institute (J.S.C., S.A.L., Y.H.S.), Baylor College of Medicine, Houston, TX
- Division of Cardiothoracic Surgery, Michael E. DeBakey Department of Surgery (W.L., Y.W., L.Z., P.R., C.Z., Yanming Li, M.Z., J.G., J.S.C., S.A.L., Y.H.S.), Baylor College of Medicine, Houston, TX
- Department of Cardiovascular Surgery (W.L., Y.W., L.Z., P.R., C.Z., Yanming Li, J.G., J.S.C., S.A.L., Y.H.S.), Texas Heart Institute, Houston
| | - Ying H Shen
- Cardiovascular Research Institute (J.S.C., S.A.L., Y.H.S.), Baylor College of Medicine, Houston, TX
- Division of Cardiothoracic Surgery, Michael E. DeBakey Department of Surgery (W.L., Y.W., L.Z., P.R., C.Z., Yanming Li, M.Z., J.G., J.S.C., S.A.L., Y.H.S.), Baylor College of Medicine, Houston, TX
- Department of Cardiovascular Surgery (W.L., Y.W., L.Z., P.R., C.Z., Yanming Li, J.G., J.S.C., S.A.L., Y.H.S.), Texas Heart Institute, Houston
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Holt M, Seim BE, Øgaard J, Olsen MB, Woldbæk PR, Kvitting JP, Aukrust P, Yndestad A, Mollnes TE, Nilsson PH, Louwe MC, Ranheim T. Selective and marked decrease of complement receptor C5aR2 in human thoracic aortic aneurysms: a dysregulation with potential inflammatory effects. Open Heart 2019; 6:e001098. [PMID: 31798913 PMCID: PMC6861114 DOI: 10.1136/openhrt-2019-001098] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Accepted: 10/03/2019] [Indexed: 12/23/2022] Open
Abstract
Objective The aetiology of thoracic aortic aneurysm (TAA) is largely unknown, but inflammation is
likely to play a central role in the pathogenesis. In this present study, we aim to
investigate the complement receptors in TAA. Methods Aortic tissue and blood from 31 patients with non-syndromic TAA undergoing thoracic
aortic repair surgery were collected. Aortic tissue and blood from 36 patients with
atherosclerosis undergoing coronary artery bypass surgery or aortic valve replacement
were collected and served as control material. The expression of the complement
anaphylatoxin receptors C3aR1, C5aR1 and C5aR2 in aortic tissue were examined by
quantitative RT-PCR and C5aR2 protein by immunohistochemistry. Colocalisation of C5aR2
to different cell types was analysed by immunofluorescence. Complement activation
products C3bc and sC5b-9 were measured in plasma. Results Compared with controls, TAA patients had substantial (73%) downregulated gene
expression of C5aR2 as seen both at the mRNA (p=0.005) level and protein (p=0.03) level.
In contrast, there were no differences in the expression of C3aR1 and C5aR1 between the
two groups. Immunofluorescence examination showed that C5aR2 was colocalised to
macrophages and T cells in the aortic media. There were no differences in the degree of
systemic complement activation between the two groups. Conclusion Our findings suggest downregulation of the C5aR2, regarded to act mainly
anti-inflammatory, in electively operated TAA as compared with non-aneurysmatic aortas
of patients with aortic stenosis and/or coronary artery disease. This may tip the
balance towards a relative increase in the inflammatory responses induced by C5aR1 and
thus enhance the inflammatory processes in TAA.
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Affiliation(s)
- Margrethe Holt
- Institute of Clinical Medicine, University of Oslo Faculty of Medicine, Oslo, Norway.,Research Institute of Internal Medicine, Oslo University Hospital Rikshospitalet, Oslo, Norway
| | - Bjørn E Seim
- Institute of Clinical Medicine, University of Oslo Faculty of Medicine, Oslo, Norway.,Research Institute of Internal Medicine, Oslo University Hospital Rikshospitalet, Oslo, Norway.,Department of Thoracic and Cardiovascular Surgery, Oslo University Hospital Rikshospitalet, Oslo, Norway
| | - Jonas Øgaard
- Research Institute of Internal Medicine, Oslo University Hospital Rikshospitalet, Oslo, Norway
| | - Maria B Olsen
- Research Institute of Internal Medicine, Oslo University Hospital Rikshospitalet, Oslo, Norway
| | - Per R Woldbæk
- Department of Thoracic and Cardiovascular Surgery, Oslo University Hospital Ullevål, Oslo, Norway
| | - J P Kvitting
- Department of Thoracic and Cardiovascular Surgery, Oslo University Hospital Rikshospitalet, Oslo, Norway
| | - Pål Aukrust
- Institute of Clinical Medicine, University of Oslo Faculty of Medicine, Oslo, Norway.,Research Institute of Internal Medicine, Oslo University Hospital Rikshospitalet, Oslo, Norway.,Section of Clinical Immunology and Infectious Diseases, Oslo University Hospital Rikshospitalet, Oslo, Norway
| | - Arne Yndestad
- Institute of Clinical Medicine, University of Oslo Faculty of Medicine, Oslo, Norway.,Research Institute of Internal Medicine, Oslo University Hospital Rikshospitalet, Oslo, Norway
| | - Tom Eirik Mollnes
- Institute of Clinical Medicine, University of Oslo Faculty of Medicine, Oslo, Norway.,Department of Immunology, Oslo University Hospital Rikshospitalet, Oslo, Norway.,Research Laboratory and Faculty of Health Sciences, Nordland Hospital, Bodø, Norway.,K.G. Jebsen TREC - Thrombosis Research and Expertise Center, University of Tromsø, Tromsø, Norway
| | - Per H Nilsson
- Institute of Clinical Medicine, University of Oslo Faculty of Medicine, Oslo, Norway.,Linnaeus Centre for Biomaterials Chemistry, Linnaeus University, Kalmar, Sweden
| | - Mieke C Louwe
- Research Institute of Internal Medicine, Oslo University Hospital Rikshospitalet, Oslo, Norway
| | - Trine Ranheim
- Institute of Clinical Medicine, University of Oslo Faculty of Medicine, Oslo, Norway.,Research Institute of Internal Medicine, Oslo University Hospital Rikshospitalet, Oslo, Norway
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Patel V, Ghanta RK. Commentary: Under pressure: The role of inflammation in aortic aneurysm pathophysiology. J Thorac Cardiovasc Surg 2019; 160:1444-1445. [PMID: 31627956 DOI: 10.1016/j.jtcvs.2019.09.037] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Revised: 09/03/2019] [Accepted: 09/05/2019] [Indexed: 10/25/2022]
Affiliation(s)
- Vivek Patel
- Division of Cardiothoracic Surgery, Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, Tex
| | - Ravi K Ghanta
- Division of Cardiothoracic Surgery, Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, Tex.
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Zhou G, Liao M, Wang F, Qi X, Yang P, Berceli SA, Sharma AK, Upchurch GR, Jiang Z. Cyclophilin A contributes to aortopathy induced by postnatal loss of smooth muscle TGFBR1. FASEB J 2019; 33:11396-11410. [PMID: 31311317 PMCID: PMC6766662 DOI: 10.1096/fj.201900601rr] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Accepted: 06/25/2019] [Indexed: 12/12/2022]
Abstract
Recent recognition that TGF-β signaling disruption is involved in the development of aortic aneurysms has led to renewed investigations into the role of TGF-β biology in the aortic wall. We previously found that the type I receptor of TGF-β (TGFBR2) receptor contributes to formation of ascending aortic aneurysms and dissections (AADs) induced by smooth muscle cell (SMC)-specific, postnatal deletion of Tgfbr1 (Tgfbr1iko). Here, we aimed to decipher the mechanistic signaling pathway underlying the pathogenic effects of TGFBR2 in this context. Gene expression profiling demonstrated that Tgfbr1iko triggers an acute inflammatory response in developing AADs, and Tgfbr1iko SMCs express an inflammatory phenotype in culture. Comparative proteomics profiling and mass spectrometry revealed that Tgfbr1iko SMCs respond to TGF-β1 stimulation via robust up-regulation of cyclophilin A (CypA). This up-regulation is abrogated by inhibition of TGFBR2 kinase activity, small interfering RNA silencing of Tgfbr2 expression, or inhibition of SMAD3 activation. In mice, Tgfbr1iko rapidly promotes CypA production in SMCs of developing AADs, whereas treatment with a CypA inhibitor attenuates aortic dilation by 56% (P = 0.003) and ameliorates aneurysmal degeneration (P = 0.016). These protective effects are associated with reduced aneurysm-promoting inflammation. Collectively, these results suggest a novel mechanism, wherein loss of type I receptor of TGF-β triggers promiscuous, proinflammatory TGFBR2 signaling in SMCs, thereby promoting AAD formation.-Zhou, G., Liao, M., Wang, F., Qi, X., Yang, P., Berceli, S. A., Sharma, A. K., Upchurch, G. R., Jr., Jiang, Z. Cyclophilin A contributes to aortopathy induced by postnatal loss of smooth muscle TGFBR1.
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Affiliation(s)
- Guannan Zhou
- Division of Vascular Surgery and Endovascular Therapy, University of Florida College of Medicine, Gainesville, Florida, USA
| | - Mingmei Liao
- Division of Vascular Surgery and Endovascular Therapy, University of Florida College of Medicine, Gainesville, Florida, USA
| | - Fen Wang
- Division of Vascular Surgery and Endovascular Therapy, University of Florida College of Medicine, Gainesville, Florida, USA
| | - Xiaoyan Qi
- Division of Vascular Surgery and Endovascular Therapy, University of Florida College of Medicine, Gainesville, Florida, USA
| | - Pu Yang
- Division of Vascular Surgery and Endovascular Therapy, University of Florida College of Medicine, Gainesville, Florida, USA
| | - Scott A. Berceli
- Division of Vascular Surgery and Endovascular Therapy, University of Florida College of Medicine, Gainesville, Florida, USA
- Malcom Randall Veterans Affairs Medical Center, Gainesville, Florida, USA
| | - Ashish K. Sharma
- Division of Vascular Surgery and Endovascular Therapy, University of Florida College of Medicine, Gainesville, Florida, USA
| | - Gilbert R. Upchurch
- Division of Vascular Surgery and Endovascular Therapy, University of Florida College of Medicine, Gainesville, Florida, USA
| | - Zhihua Jiang
- Division of Vascular Surgery and Endovascular Therapy, University of Florida College of Medicine, Gainesville, Florida, USA
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Lu HS, Schmidt AM, Hegele RA, Mackman N, Rader DJ, Weber C, Daugherty A. Reporting Sex and Sex Differences in Preclinical Studies. Arterioscler Thromb Vasc Biol 2019; 38:e171-e184. [PMID: 30354222 DOI: 10.1161/atvbaha.118.311717] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Hong S Lu
- From the Department of Physiology, Saha Cardiovascular Research Center, University of Kentucky, Lexington (H.S.L., A.D.)
| | - Ann Marie Schmidt
- Diabetes Research Program, Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, New York University Langone Medical Center, New York, NY (A.M.S.)
| | - Robert A Hegele
- Department of Medicine and Robarts Research Institute, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada (R.A.H.)
| | - Nigel Mackman
- Department of Medicine, University of North Carolina at Chapel Hill (N.M.)
| | - Daniel J Rader
- Department of Medicine (D.J.R.), Perelman School of Medicine, University of Pennsylvania, Philadelphia.,Department of Genetics (D.J.R.), Perelman School of Medicine, University of Pennsylvania, Philadelphia
| | - Christian Weber
- Department of Medicine, Institute for Cardiovascular Prevention, Ludwig-Maximilians-Universität, Munich, Germany (C.W.).,German Centre for Cardiovascular Research, Partner Site Munich Heart Alliance, Munich, Germany (C.W.)
| | - Alan Daugherty
- From the Department of Physiology, Saha Cardiovascular Research Center, University of Kentucky, Lexington (H.S.L., A.D.)
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Martínez-López D, Cedó L, Metso J, Burillo E, García-León A, Canyelles M, Lindholt JS, Torres-Fonseca M, Blanco-Colio LM, Vázquez J, Blanco-Vaca F, Jauhiainen M, Martín-Ventura JL, Escolà-Gil JC. Impaired HDL (High-Density Lipoprotein)-Mediated Macrophage Cholesterol Efflux in Patients With Abdominal Aortic Aneurysm-Brief Report. Arterioscler Thromb Vasc Biol 2019; 38:2750-2754. [PMID: 30354236 DOI: 10.1161/atvbaha.118.311704] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Objective- The ability of HDL (high-density lipoprotein) to promote macrophage cholesterol efflux is considered the main HDL cardioprotective function. Abdominal aortic aneurysm (AAA) is usually characterized by cholesterol accumulation and macrophage infiltration in the aortic wall. Here, we aim to evaluate the composition of circulating HDL particles and their potential for promoting macrophage cholesterol efflux in AAA subjects. Approach and Results- First, we randomly selected AAA and control subjects from Spain. The AAA patients in the Spanish cohort showed lower plasma apoA-I levels concomitantly associated with low levels of plasma HDL cholesterol and the amount of preβ-HDL particles. We determined macrophage cholesterol efflux to apoB-depleted plasma, which contains mature HDL, preβ-HDL particles and HDL regulatory proteins. ApoB-depleted plasma from AAA patients displayed an impaired ability to promote macrophage cholesterol efflux. Next, we replicated the experiments with AAA and control subjects derived from Danish cohort. Danish AAA patients also showed lower apoA-I levels and a defective HDL-mediated macrophage cholesterol efflux. Conclusions- AAA patients show impaired HDL-facilitated cholesterol removal from macrophages, which could be mechanistically linked to AAA.
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Affiliation(s)
- Diego Martínez-López
- From the Laboratorio de Patología Vascular y CIBER de Enfermedades Cardiovasculares (CIBERCV), FIIS-Fundación Jiménez Díaz-Universidad Autónoma, Madrid (D.M.-L., E.B., M.T.-F., L.M.B.-C., J.L.M.-V.)
| | - Lídia Cedó
- Institut d'Investigacions Biomèdiques (IIB) Sant Pau, Barcelona, Spain (L.C., A.G.-L., M.C., F.B.-V., J.C.E.-G.).,CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Barcelona, Spain (L.C., F.B.-V., J.C.E.-G.)
| | - Jari Metso
- Minerva Foundation Institute for Medical Research and National Institute for Health and Welfare, Genomics and Biomarkers Unit, Biomedicum, Helsinki, Finland (J.M., M.J.)
| | - Elena Burillo
- From the Laboratorio de Patología Vascular y CIBER de Enfermedades Cardiovasculares (CIBERCV), FIIS-Fundación Jiménez Díaz-Universidad Autónoma, Madrid (D.M.-L., E.B., M.T.-F., L.M.B.-C., J.L.M.-V.)
| | - Annabel García-León
- Institut d'Investigacions Biomèdiques (IIB) Sant Pau, Barcelona, Spain (L.C., A.G.-L., M.C., F.B.-V., J.C.E.-G.)
| | - Marina Canyelles
- Institut d'Investigacions Biomèdiques (IIB) Sant Pau, Barcelona, Spain (L.C., A.G.-L., M.C., F.B.-V., J.C.E.-G.)
| | - Jes S Lindholt
- Elitary Research Centre of Individualized Medicine in Arterial Disease (CIMA), Department of Cardiothoracic and Vascular Surgery, Odense University Hospital, Denmark (J.S.L.)
| | - Monica Torres-Fonseca
- From the Laboratorio de Patología Vascular y CIBER de Enfermedades Cardiovasculares (CIBERCV), FIIS-Fundación Jiménez Díaz-Universidad Autónoma, Madrid (D.M.-L., E.B., M.T.-F., L.M.B.-C., J.L.M.-V.)
| | - Luis Miguel Blanco-Colio
- From the Laboratorio de Patología Vascular y CIBER de Enfermedades Cardiovasculares (CIBERCV), FIIS-Fundación Jiménez Díaz-Universidad Autónoma, Madrid (D.M.-L., E.B., M.T.-F., L.M.B.-C., J.L.M.-V.)
| | - Jesús Vázquez
- Cardiovascular Proteomics Laboratory, Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), CIBER de Enfermedades Cardiovasculares (CIBERCV), Madrid (J.V.)
| | - Francisco Blanco-Vaca
- Institut d'Investigacions Biomèdiques (IIB) Sant Pau, Barcelona, Spain (L.C., A.G.-L., M.C., F.B.-V., J.C.E.-G.).,CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Barcelona, Spain (L.C., F.B.-V., J.C.E.-G.).,Departament de Bioquímica, Biología Molecular i Biomedicina, Universitat Autònoma de Barcelona, Spain (F.B.-V., J.C.E.-G.)
| | - Matti Jauhiainen
- Minerva Foundation Institute for Medical Research and National Institute for Health and Welfare, Genomics and Biomarkers Unit, Biomedicum, Helsinki, Finland (J.M., M.J.)
| | - Jose Luis Martín-Ventura
- From the Laboratorio de Patología Vascular y CIBER de Enfermedades Cardiovasculares (CIBERCV), FIIS-Fundación Jiménez Díaz-Universidad Autónoma, Madrid (D.M.-L., E.B., M.T.-F., L.M.B.-C., J.L.M.-V.)
| | - Joan Carles Escolà-Gil
- Institut d'Investigacions Biomèdiques (IIB) Sant Pau, Barcelona, Spain (L.C., A.G.-L., M.C., F.B.-V., J.C.E.-G.).,CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Barcelona, Spain (L.C., F.B.-V., J.C.E.-G.).,Departament de Bioquímica, Biología Molecular i Biomedicina, Universitat Autònoma de Barcelona, Spain (F.B.-V., J.C.E.-G.)
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61
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Bogunovic N, Meekel JP, Micha D, Blankensteijn JD, Hordijk PL, Yeung KK. Impaired smooth muscle cell contractility as a novel concept of abdominal aortic aneurysm pathophysiology. Sci Rep 2019; 9:6837. [PMID: 31048749 PMCID: PMC6497672 DOI: 10.1038/s41598-019-43322-3] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Accepted: 04/16/2019] [Indexed: 12/20/2022] Open
Abstract
Ruptured abdominal aortic aneurysms (AAA) are associated with overall mortality rates up to 90%. Despite extensive research, mechanisms leading to AAA formation and advancement are still poorly understood. Smooth muscle cells (SMC) are predominant in the aortic medial layer and maintain the wall structure. Apoptosis of SMC is a well-known phenomenon in the pathophysiology of AAA. However, remaining SMC function is less extensively studied. The aim of this study is to assess the in vitro contractility of human AAA and non-pathologic aortic SMC. Biopsies were perioperatively harvested from AAA patients (n = 21) and controls (n = 6) and clinical data were collected. Contractility was measured using Electric Cell-substrate Impedance Sensing (ECIS) upon ionomycin stimulation. Additionally, SMC of 23% (5 out of 21) of AAA patients showed impaired maximum contraction compared to controls. Also, SMC from patients who underwent open repair after earlier endovascular repair and SMC from current smokers showed decreased maximum contraction vs. controls (p = 0.050 and p = 0.030, respectively). Our application of ECIS can be used to study contractility in other vascular diseases. Finally, our study provides with first proof that impaired SMC contractility might play a role in AAA pathophysiology.
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MESH Headings
- Actins/genetics
- Aortic Aneurysm, Abdominal/genetics
- Aortic Aneurysm, Abdominal/metabolism
- Aortic Aneurysm, Abdominal/physiopathology
- Apoptosis/genetics
- Apoptosis/physiology
- Calcium-Binding Proteins/genetics
- Cells, Cultured
- Cytoskeletal Proteins/genetics
- Humans
- In Vitro Techniques
- Microfilament Proteins/genetics
- Muscle Contraction/genetics
- Muscle Contraction/physiology
- Muscle Proteins/genetics
- Muscle, Smooth, Vascular/metabolism
- Muscle, Smooth, Vascular/physiology
- Myocytes, Smooth Muscle/cytology
- Myocytes, Smooth Muscle/metabolism
- Myocytes, Smooth Muscle/physiology
- Polymerase Chain Reaction
- Vimentin/genetics
- Calponins
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Affiliation(s)
- Natalija Bogunovic
- Departments of Vascular Surgery, Amsterdam University Medical Centers, location VU University Medical center, Amsterdam, The Netherlands
- Departments of Physiology, Amsterdam University Medical Centers, location VU University Medical center, Amsterdam, The Netherlands
- Departments of Clinical Genetics, Amsterdam University Medical Centers, location VU University Medical center, Amsterdam, The Netherlands
| | - Jorn P Meekel
- Departments of Vascular Surgery, Amsterdam University Medical Centers, location VU University Medical center, Amsterdam, The Netherlands
- Departments of Physiology, Amsterdam University Medical Centers, location VU University Medical center, Amsterdam, The Netherlands
| | - Dimitra Micha
- Departments of Clinical Genetics, Amsterdam University Medical Centers, location VU University Medical center, Amsterdam, The Netherlands
| | - Jan D Blankensteijn
- Departments of Vascular Surgery, Amsterdam University Medical Centers, location VU University Medical center, Amsterdam, The Netherlands
| | - Peter L Hordijk
- Departments of Physiology, Amsterdam University Medical Centers, location VU University Medical center, Amsterdam, The Netherlands
| | - Kak K Yeung
- Departments of Vascular Surgery, Amsterdam University Medical Centers, location VU University Medical center, Amsterdam, The Netherlands.
- Departments of Physiology, Amsterdam University Medical Centers, location VU University Medical center, Amsterdam, The Netherlands.
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62
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NLRP3 Inflammasome Is Involved in Calcium-Sensing Receptor-Induced Aortic Remodeling in SHRs. Mediators Inflamm 2019; 2019:6847087. [PMID: 30906225 PMCID: PMC6393924 DOI: 10.1155/2019/6847087] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2018] [Revised: 03/05/2018] [Accepted: 03/28/2018] [Indexed: 12/22/2022] Open
Abstract
Increasing evidence suggests that the NLRP3 (nucleotide oligomerization domain-like receptor family, pyrin domain containing 3) inflammasome participates in cardiovascular diseases. However, its role and activation mechanism during hypertension remains unclear. In this study, we tested the role and mechanism of calcium-sensing receptor (CaSR) in NLRP3 inflammasome activation during hypertension. We observed that the expressions of CaSR and NLRP3 were increased in spontaneous hypertensive rats (SHRs) along with aortic fibrosis. In vascular smooth muscle cells (VSMCs), the activation of NLRP3 inflammasome associated with CaSR and collagen synthesis was induced by angiotensin II (Ang II). Furthermore, inhibition of CaSR and NLRP3 inflammasome attenuated proinflammatory cytokine release, suggesting that CaSR-mediated activation of the NLRP3 inflammasome may be a therapeutic target in aortic dysfunction and vascular inflammatory lesions.
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63
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Wortmann M, Xiao X, Wabnitz G, Samstag Y, Hakimi M, Böckler D, Dihlmann S. AIM2 levels and DNA-triggered inflammasome response are increased in peripheral leukocytes of patients with abdominal aortic aneurysm. Inflamm Res 2019; 68:337-345. [DOI: 10.1007/s00011-019-01212-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Revised: 12/03/2018] [Accepted: 01/01/2019] [Indexed: 02/08/2023] Open
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64
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Forrester SJ, Booz GW, Sigmund CD, Coffman TM, Kawai T, Rizzo V, Scalia R, Eguchi S. Angiotensin II Signal Transduction: An Update on Mechanisms of Physiology and Pathophysiology. Physiol Rev 2018; 98:1627-1738. [PMID: 29873596 DOI: 10.1152/physrev.00038.2017] [Citation(s) in RCA: 614] [Impact Index Per Article: 102.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The renin-angiotensin-aldosterone system plays crucial roles in cardiovascular physiology and pathophysiology. However, many of the signaling mechanisms have been unclear. The angiotensin II (ANG II) type 1 receptor (AT1R) is believed to mediate most functions of ANG II in the system. AT1R utilizes various signal transduction cascades causing hypertension, cardiovascular remodeling, and end organ damage. Moreover, functional cross-talk between AT1R signaling pathways and other signaling pathways have been recognized. Accumulating evidence reveals the complexity of ANG II signal transduction in pathophysiology of the vasculature, heart, kidney, and brain, as well as several pathophysiological features, including inflammation, metabolic dysfunction, and aging. In this review, we provide a comprehensive update of the ANG II receptor signaling events and their functional significances for potential translation into therapeutic strategies. AT1R remains central to the system in mediating physiological and pathophysiological functions of ANG II, and participation of specific signaling pathways becomes much clearer. There are still certain limitations and many controversies, and several noteworthy new concepts require further support. However, it is expected that rigorous translational research of the ANG II signaling pathways including those in large animals and humans will contribute to establishing effective new therapies against various diseases.
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Affiliation(s)
- Steven J Forrester
- Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University , Philadelphia, Pennsylvania ; Department of Pharmacology and Toxicology, School of Medicine, University of Mississippi Medical Center , Jackson, Mississippi ; Department of Pharmacology, Center for Hypertension Research, Roy J. and Lucille A. Carver College of Medicine, University of Iowa , Iowa City, Iowa ; and Duke-NUS, Singapore and Department of Medicine, Duke University Medical Center , Durham, North Carolina
| | - George W Booz
- Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University , Philadelphia, Pennsylvania ; Department of Pharmacology and Toxicology, School of Medicine, University of Mississippi Medical Center , Jackson, Mississippi ; Department of Pharmacology, Center for Hypertension Research, Roy J. and Lucille A. Carver College of Medicine, University of Iowa , Iowa City, Iowa ; and Duke-NUS, Singapore and Department of Medicine, Duke University Medical Center , Durham, North Carolina
| | - Curt D Sigmund
- Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University , Philadelphia, Pennsylvania ; Department of Pharmacology and Toxicology, School of Medicine, University of Mississippi Medical Center , Jackson, Mississippi ; Department of Pharmacology, Center for Hypertension Research, Roy J. and Lucille A. Carver College of Medicine, University of Iowa , Iowa City, Iowa ; and Duke-NUS, Singapore and Department of Medicine, Duke University Medical Center , Durham, North Carolina
| | - Thomas M Coffman
- Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University , Philadelphia, Pennsylvania ; Department of Pharmacology and Toxicology, School of Medicine, University of Mississippi Medical Center , Jackson, Mississippi ; Department of Pharmacology, Center for Hypertension Research, Roy J. and Lucille A. Carver College of Medicine, University of Iowa , Iowa City, Iowa ; and Duke-NUS, Singapore and Department of Medicine, Duke University Medical Center , Durham, North Carolina
| | - Tatsuo Kawai
- Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University , Philadelphia, Pennsylvania ; Department of Pharmacology and Toxicology, School of Medicine, University of Mississippi Medical Center , Jackson, Mississippi ; Department of Pharmacology, Center for Hypertension Research, Roy J. and Lucille A. Carver College of Medicine, University of Iowa , Iowa City, Iowa ; and Duke-NUS, Singapore and Department of Medicine, Duke University Medical Center , Durham, North Carolina
| | - Victor Rizzo
- Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University , Philadelphia, Pennsylvania ; Department of Pharmacology and Toxicology, School of Medicine, University of Mississippi Medical Center , Jackson, Mississippi ; Department of Pharmacology, Center for Hypertension Research, Roy J. and Lucille A. Carver College of Medicine, University of Iowa , Iowa City, Iowa ; and Duke-NUS, Singapore and Department of Medicine, Duke University Medical Center , Durham, North Carolina
| | - Rosario Scalia
- Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University , Philadelphia, Pennsylvania ; Department of Pharmacology and Toxicology, School of Medicine, University of Mississippi Medical Center , Jackson, Mississippi ; Department of Pharmacology, Center for Hypertension Research, Roy J. and Lucille A. Carver College of Medicine, University of Iowa , Iowa City, Iowa ; and Duke-NUS, Singapore and Department of Medicine, Duke University Medical Center , Durham, North Carolina
| | - Satoru Eguchi
- Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University , Philadelphia, Pennsylvania ; Department of Pharmacology and Toxicology, School of Medicine, University of Mississippi Medical Center , Jackson, Mississippi ; Department of Pharmacology, Center for Hypertension Research, Roy J. and Lucille A. Carver College of Medicine, University of Iowa , Iowa City, Iowa ; and Duke-NUS, Singapore and Department of Medicine, Duke University Medical Center , Durham, North Carolina
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65
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Affiliation(s)
- Hiroki Aoki
- Cardiovascular Research Institute, Kurume University, Kurume, Fukuoka, Japan
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66
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Shridas P, De Beer MC, Webb NR. High-density lipoprotein inhibits serum amyloid A-mediated reactive oxygen species generation and NLRP3 inflammasome activation. J Biol Chem 2018; 293:13257-13269. [PMID: 29976759 DOI: 10.1074/jbc.ra118.002428] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Revised: 06/18/2018] [Indexed: 12/11/2022] Open
Abstract
Serum amyloid A (SAA) is a high-density apolipoprotein whose plasma levels can increase more than 1000-fold during a severe acute-phase inflammatory response and are more modestly elevated in chronic inflammation. SAA is thought to play important roles in innate immunity, but its biological activities have not been completely delineated. We previously reported that SAA deficiency protects mice from developing abdominal aortic aneurysms (AAAs) induced by chronic angiotensin II (AngII) infusion. Here, we report that SAA is required for AngII-induced increases in interleukin-1β (IL-1β), a potent proinflammatory cytokine that is tightly controlled by the Nod-like receptor protein 3 (NLRP3) inflammasome and caspase-1 and has been implicated in both human and mouse AAAs. We determined that purified SAA stimulates IL-1β secretion in murine J774 and bone marrow-derived macrophages through a mechanism that depends on NLRP3 expression and caspase-1 activity, but is independent of P2X7 nucleotide receptor (P2X7R) activation. Inhibiting reactive oxygen species (ROS) by N-acetyl-l-cysteine or mito-TEMPO and inhibiting activation of cathepsin B by CA-074 blocked SAA-mediated inflammasome activation and IL-1β secretion. Moreover, inhibiting cellular potassium efflux with glyburide or increasing extracellular potassium also significantly reduced SAA-mediated IL-1β secretion. Of note, incorporating SAA into high-density lipoprotein (HDL) prior to its use in cell treatments completely abolished its ability to stimulate ROS generation and inflammasome activation. These results provide detailed insights into SAA-mediated IL-1β production and highlight HDL's role in regulating SAA's proinflammatory effects.
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Affiliation(s)
- Preetha Shridas
- From the Departments of Internal Medicine, .,Barnstable Brown Diabetes Center, University of Kentucky, Lexington, Kentucky 40536
| | - Maria C De Beer
- Barnstable Brown Diabetes Center, University of Kentucky, Lexington, Kentucky 40536.,Physiology, and.,Pharmacology and Nutritional Sciences
| | - Nancy R Webb
- Barnstable Brown Diabetes Center, University of Kentucky, Lexington, Kentucky 40536.,Pharmacology and Nutritional Sciences.,Saha Cardiovascular Research Center, and
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67
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Xiao Y, Xu W, Su W. NLRP3 inflammasome: A likely target for the treatment of allergic diseases. Clin Exp Allergy 2018; 48:1080-1091. [PMID: 29900602 DOI: 10.1111/cea.13190] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Revised: 05/25/2018] [Accepted: 06/11/2018] [Indexed: 12/28/2022]
Abstract
Allergic diseases, such as asthma, rhinitis, dermatitis, conjunctivitis, and anaphylaxis, have recently become a global public health concern. According to previous studies, the NLRP3 inflammasome is a multi-protein complex known to be associated with many inflammatory conditions. In response to allergens or allergen/damage-associated molecular signals, NLRP3 changes its conformation to allow the assembly of the NLRP3 inflammasome complex and activates caspase-1, which is an evolutionarily conserved enzyme that proteolytically cleaves other proteins, such as the precursors of the inflammatory cytokines IL-1β and IL-18. Subsequently, active caspase-1 cleaves pro-IL-1 and pro-IL-18. Recently, accumulating human and mouse experimental evidence has demonstrated that the NLRP3 inflammasome, IL-1β, and IL-18 are critically involved in the development of allergic diseases. Furthermore, the application of specific NLRP3 inflammasome inhibitors has been demonstrated in animal models. Therefore, these inhibitors may represent potential therapeutic methods for the management of clinical allergic disorders. This review summarizes findings related to the NLRP3 inflammasome and its related factors and concludes that specific NLRP3 inflammasome inhibitors may be potential therapeutic agents for allergic diseases.
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Affiliation(s)
- Yichen Xiao
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China
| | - Wenna Xu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China
| | - Wenru Su
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China
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68
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Wu CH, Mohammadmoradi S, Chen JZ, Sawada H, Daugherty A, Lu HS. Renin-Angiotensin System and Cardiovascular Functions. Arterioscler Thromb Vasc Biol 2018; 38:e108-e116. [PMID: 29950386 PMCID: PMC6039412 DOI: 10.1161/atvbaha.118.311282] [Citation(s) in RCA: 91] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Chia-Hua Wu
- From the Saha Cardiovascular Research Center (C.-H.W., S.M., J.Z.C., H.S., A.D., H.S.L.)
- Department of Pharmacology and Nutritional Sciences (C.-H.W., S.M., A.D., H.S.L.)
| | - Shayan Mohammadmoradi
- From the Saha Cardiovascular Research Center (C.-H.W., S.M., J.Z.C., H.S., A.D., H.S.L.)
- Department of Pharmacology and Nutritional Sciences (C.-H.W., S.M., A.D., H.S.L.)
| | - Jeff Z Chen
- From the Saha Cardiovascular Research Center (C.-H.W., S.M., J.Z.C., H.S., A.D., H.S.L.)
- Department of Physiology (J.Z.C., A.D., H.S.L.), University of Kentucky, Lexington
| | - Hisashi Sawada
- From the Saha Cardiovascular Research Center (C.-H.W., S.M., J.Z.C., H.S., A.D., H.S.L.)
| | - Alan Daugherty
- From the Saha Cardiovascular Research Center (C.-H.W., S.M., J.Z.C., H.S., A.D., H.S.L.)
- Department of Pharmacology and Nutritional Sciences (C.-H.W., S.M., A.D., H.S.L.)
- Department of Physiology (J.Z.C., A.D., H.S.L.), University of Kentucky, Lexington
| | - Hong S Lu
- From the Saha Cardiovascular Research Center (C.-H.W., S.M., J.Z.C., H.S., A.D., H.S.L.)
- Department of Pharmacology and Nutritional Sciences (C.-H.W., S.M., A.D., H.S.L.)
- Department of Physiology (J.Z.C., A.D., H.S.L.), University of Kentucky, Lexington
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69
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Mei B, Yang S, Yue Y, Hou J, Wang K, Chen G, Liang M, Wu Z. Acute adrenal cortex injury during cardiopulmonary bypass in a canine model. J Thorac Cardiovasc Surg 2018; 156:696-706. [PMID: 29753511 DOI: 10.1016/j.jtcvs.2018.03.151] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Revised: 03/04/2018] [Accepted: 03/05/2018] [Indexed: 12/19/2022]
Abstract
OBJECTIVE Cardiopulmonary bypass (CPB) might induce systemic inflammatory responses that cause acute injuries to multiple organs. However, no direct evidence exists to determine whether CPB leads to adrenal cortex injury or to describe its underlying mechanism. METHODS Twelve healthy adult beagles were randomly assigned into control and CPB groups. After cannulation, mild hypothermia CPB was performed in the CPB group but not in the control group. The serum concentrations of various cytokines, cortisol, and aldosterone were assessed. Adrenal cortex injuries were evaluated using standard histological methods. Steroidogenic enzymes and the nucleotide-binding oligomerization domain-like receptor containing pyrin domain 3 (NLRP3) inflammasome pathway were detected using quantitative polymerase chain reaction and Western blot analysis. RESULTS During CPB, serum interleukin (IL)-6, IL-8, IL-10, tumor necrosis factor α, cortisol, and aldosterone levels were significantly higher in the CPB group. The pathologic study revealed higher injury scores (3.6 ± 0.6 vs 0.7 ± 0.7) and significantly more severe edema, inflammatory cell infiltration (lymphocytes and neutrophils), and apoptosis in the CPB group. The electron microscopic examination showed swollen mitochondria, ruptured mitochondrial cristae, reduced lipid droplets, and increased secondary lysosomes in the CPB group. The mRNA expression levels of NLRP3 and the protein levels of 17α-hydroxylase and IL-1β in adrenal tissue were significantly upregulated in the CPB group. CONCLUSIONS CPB induces significant systemic and local inflammation in the adrenal cortex and results in cytological architectural and ultrastructural alterations in adrenocorticocytes. In addition, the NLRP3 inflammasome pathway might promote adrenal gland injury during CPB and might represent a novel potential therapeutic target.
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Affiliation(s)
- Bo Mei
- Department of Cardiac Surgery, First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China; Key Laboratory on Assisted Circulation, Ministry of Health, Guangzhou, China
| | - Song Yang
- Key Laboratory on Assisted Circulation, Ministry of Health, Guangzhou, China; Department of Cardiosurgery Intensive Care Unit, First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Yuan Yue
- Department of Cardiac Surgery, First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China; Key Laboratory on Assisted Circulation, Ministry of Health, Guangzhou, China
| | - Jian Hou
- Department of Cardiac Surgery, First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China; Key Laboratory on Assisted Circulation, Ministry of Health, Guangzhou, China
| | - Keke Wang
- Department of Cardiac Surgery, First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China; Key Laboratory on Assisted Circulation, Ministry of Health, Guangzhou, China
| | - Guangxian Chen
- Department of Cardiac Surgery, First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China; Key Laboratory on Assisted Circulation, Ministry of Health, Guangzhou, China
| | - Mengya Liang
- Department of Cardiac Surgery, First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China; Key Laboratory on Assisted Circulation, Ministry of Health, Guangzhou, China
| | - Zhongkai Wu
- Department of Cardiac Surgery, First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China; Key Laboratory on Assisted Circulation, Ministry of Health, Guangzhou, China.
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70
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Wagenseil JE. Bio-chemo-mechanics of thoracic aortic aneurysms. CURRENT OPINION IN BIOMEDICAL ENGINEERING 2018; 5:50-57. [PMID: 29911202 DOI: 10.1016/j.cobme.2018.01.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Most thoracic aortic aneurysms (TAAs) occur in the ascending aorta. This review focuses on the unique bio-chemo-mechanical environment that makes the ascending aorta susceptible to TAA. The environment includes solid mechanics, fluid mechanics, cell phenotype, and extracellular matrix composition. Advances in solid mechanics include quantification of biaxial deformation and complex failure behavior of the TAA wall. Advances in fluid mechanics include imaging and modeling of hemodynamics that may lead to TAA formation. For cell phenotype, studies demonstrate changes in cell contractility that may serve to sense mechanical changes and transduce chemical signals. Studies on matrix defects highlight the multi-factorial nature of the disease. We conclude that future work should integrate the effects of bio-chemo-mechanical factors for improved TAA treatment.
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Affiliation(s)
- Jessica E Wagenseil
- Dept. of Mechanical Engineering and Materials Science, Washington University, St. Louis, MO
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Bedarida T, Domingues A, Baron S, Ferreira C, Vibert F, Cottart CH, Paul JL, Escriou V, Bigey P, Gaussem P, Leguillier T, Nivet-Antoine V. Reduced endothelial thioredoxin-interacting protein protects arteries from damage induced by metabolic stress in vivo. FASEB J 2018; 32:3108-3118. [PMID: 29401599 DOI: 10.1096/fj.201700856rrr] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Although thioredoxin-interacting protein (TXNIP) is involved in a variety of biologic functions, the contribution of endothelial TXNIP has not been well defined. To investigate the endothelial function of TXNIP, we generated a TXNIP knockout mouse on the Cdh5-cre background (TXNIPfl/fl cdh5cre). Control (TXNIPfl/fl) and TXNIPfl/fl cdh5cre mice were fed a high protein-low carbohydrate (HP-LC) diet for 3 mo to induce metabolic stress. We found that TXNIPfl/fl and TXNIPfl/fl cdh5cre mice on an HP-LC diet displayed impaired glucose tolerance and dyslipidemia concretizing the metabolic stress induced. We evaluated the impact of this metabolic stress on mice with reduced endothelial TXNIP expression with regard to arterial structure and function. TXNIPfl/fl cdh5cre mice on an HP-LC diet exhibited less endothelial dysfunction than littermate mice on an HP-LC diet. These mice were protected from decreased aortic medial cell content, impaired aortic distensibility, and increased plasminogen activator inhibitor 1 secretion. This protective effect came with lower oxidative stress and lower inflammation, with a reduced NLRP3 inflammasome expression, leading to a decrease in cleaved IL-1β. We also show the major role of TXNIP in inflammation with a knockdown model, using a TXNIP-specific, small interfering RNA included in a lipoplex. These findings demonstrate a key role for endothelial TXNIP in arterial impairments induced by metabolic stress, making endothelial TXNIP a potential therapeutic target.-Bedarida, T., Domingues, A., Baron, S., Ferreira, C., Vibert, F., Cottart, C.-H., Paul, J.-L., Escriou, V., Bigey, P., Gaussem, P., Leguillier, T., Nivet-Antoine, V. Reduced endothelial thioredoxin-interacting protein protects arteries from damage induced by metabolic stress in vivo.
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Affiliation(s)
- Tatiana Bedarida
- INSERM, Unité Mixte de Recherche (UMR) S-1140, Paris, France.,Faculty of Pharmacy, Paris Descartes University, Sorbonne Paris Cité, Paris, France
| | - Alison Domingues
- INSERM, Unité Mixte de Recherche (UMR) S-1140, Paris, France.,Faculty of Pharmacy, Paris Descartes University, Sorbonne Paris Cité, Paris, France
| | - Stephanie Baron
- Department of Physiology, Georges Pompidou European Hospital, Assistance Publique-Hôpitaux de Paris (AP-HP), Paris, France
| | - Chrystophe Ferreira
- Platform Anima 5, Paris Descartes University, Sorbonne Paris Cité, Paris, France
| | - Francoise Vibert
- Faculty of Pharmacy, Paris Descartes University, Sorbonne Paris Cité, Paris, France.,INSERM, UMR S-1139, Paris, France
| | - Charles-Henry Cottart
- Faculty of Pharmacy, Paris Descartes University, Sorbonne Paris Cité, Paris, France.,Clinical Biochemistry, Necker Hospital, AP-HP, Paris, France
| | - Jean-Louis Paul
- Department of Biochemistry, Georges Pompidou European Hospital, Assistance Publique-Hôpitaux de Paris (AP-HP), Paris, France
| | - Virginie Escriou
- Faculty of Pharmacy, Paris Descartes University, Sorbonne Paris Cité, Paris, France.,Centre National de la Recherche Scientifique, Unité de Technologies Chimiques et Biologiques pour la Santé (UTCBS), UMR 8258, Paris, France.,INSERM, UTCBS Unité 1022, Paris, France.,Chimie ParisTech, Paris Sciences et Lettres (PSL) Research University, UTCBS, Paris, France; and
| | - Pascal Bigey
- Faculty of Pharmacy, Paris Descartes University, Sorbonne Paris Cité, Paris, France.,Centre National de la Recherche Scientifique, Unité de Technologies Chimiques et Biologiques pour la Santé (UTCBS), UMR 8258, Paris, France.,INSERM, UTCBS Unité 1022, Paris, France.,Chimie ParisTech, Paris Sciences et Lettres (PSL) Research University, UTCBS, Paris, France; and
| | - Pascale Gaussem
- INSERM, Unité Mixte de Recherche (UMR) S-1140, Paris, France.,Faculty of Pharmacy, Paris Descartes University, Sorbonne Paris Cité, Paris, France.,Department of Hematology, Georges Pompidou European Hospital, Assistance Publique-Hôpitaux de Paris (AP-HP), Paris, France
| | - Teddy Leguillier
- INSERM, Unité Mixte de Recherche (UMR) S-1140, Paris, France.,Faculty of Pharmacy, Paris Descartes University, Sorbonne Paris Cité, Paris, France.,Clinical Biochemistry, Necker Hospital, AP-HP, Paris, France
| | - Valerie Nivet-Antoine
- INSERM, Unité Mixte de Recherche (UMR) S-1140, Paris, France.,Faculty of Pharmacy, Paris Descartes University, Sorbonne Paris Cité, Paris, France.,Clinical Biochemistry, Necker Hospital, AP-HP, Paris, France
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Abstract
Cardiovascular disease (CVD) is the number one cause of death worldwide. The pathogenesis of various disease entities that comprise the area of CVD is complex and multifactorial. Inflammation serves a central role in these complex aetiologies. The inflammasomes are intracellular protein complexes activated by danger-associated molecular patterns (DAMPs) present in CVD such as atherosclerosis and myocardial infarction (MI). After a two-step process of priming and activation, inflammasomes are responsible for the formation of pro-inflammatory cytokines interleukin-1β and interleukin-18, inducing a signal transduction cascade resulting in a strong immune response that culminates in disease progression. In the past few years, increased interest has been raised regarding the inflammasomes in CVD. Inflammasome activation is thought to be involved in the pathogenesis of various disease entities such as atherosclerosis, MI and heart failure (HF). Interference with inflammasome-mediated signalling could reduce inflammation and attenuate the severity of disease. In this chapter we provide an overview of the current literature available on the role of inflammasome inhibition as a therapeutic intervention and the possible clinical implications for CVD.
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Affiliation(s)
- Gerardus P J van Hout
- Department of Cardiology, Utrecht University Medical Center, Utrecht, The Netherlands.
| | - Lena Bosch
- Department of Experimental Cardiology, Utrecht University Medical Center, Utrecht, The Netherlands
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MESH Headings
- Animals
- Aorta, Abdominal/metabolism
- Aorta, Abdominal/pathology
- Aorta, Abdominal/physiopathology
- Aorta, Thoracic/metabolism
- Aorta, Thoracic/pathology
- Aorta, Thoracic/physiopathology
- Aortic Aneurysm, Abdominal/epidemiology
- Aortic Aneurysm, Abdominal/metabolism
- Aortic Aneurysm, Abdominal/pathology
- Aortic Aneurysm, Abdominal/physiopathology
- Aortic Aneurysm, Thoracic/epidemiology
- Aortic Aneurysm, Thoracic/metabolism
- Aortic Aneurysm, Thoracic/pathology
- Aortic Aneurysm, Thoracic/physiopathology
- Disease Models, Animal
- Humans
- Risk Factors
- Signal Transduction
- Vascular Remodeling
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Affiliation(s)
- Hong Lu
- From the Department of Physiology, Saha Cardiovascular Research Center, University of Kentucky, Lexington.
| | - Alan Daugherty
- From the Department of Physiology, Saha Cardiovascular Research Center, University of Kentucky, Lexington
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