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Tang X, Guo J, Qi F, Rezaei MJ. Role of non-coding RNAs and exosomal non-coding RNAs in vasculitis: A narrative review. Int J Biol Macromol 2024; 261:129658. [PMID: 38266857 DOI: 10.1016/j.ijbiomac.2024.129658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 01/17/2024] [Accepted: 01/19/2024] [Indexed: 01/26/2024]
Abstract
A category of very uncommon systemic inflammatory blood vessel illnesses known as vasculitides. The pathogenesis and etiology of vasculitis are still poorly known. Despite all of the progress made in understanding the genetics and causes behind vasculitis, there is still more to learn. Epigenetic dysregulation is a significant contributor to immune-mediated illnesses, and epigenetic aberrancies in vasculitis are becoming more widely acknowledged. Less than 2 % of the genome contains protein-encoding DNA. Studies have shown that a variety of RNAs originating from the non-coding genome exist. Long non-coding RNAs (lncRNAs), microRNAs (miRNAs), and circular RNAs (circRNAs) have attracted the most attention in recent years as they are becoming more and more important regulators of different biological processes, such as diseases of the veins. Extracellular vehicles (EVs) such as exosomes, are membrane-bound vesicular structures that break free either during programmed cell death, such as apoptosis, pyroptosis, and necroptosis or during cell activation. Exosomes may be involved in harmful ways in inflammation, procoagulation, autoimmune reactions, endothelial dysfunction/damage, intimal hyperplasia and angiogenesis, all of which may be significant in vasculitis. Herein, we summarized various non-coding RNAs that are involved in vasculitides pathogenesis. Moreover, we highlighted the role of exosomes in vasculitides.
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Affiliation(s)
- Xiuming Tang
- Department of Cardiology, The affiliated hospital to Changchun University of Chinise Medicine, Changchun, Jilin 130021, China.
| | - Jiajuan Guo
- Department of Cardiology, The affiliated hospital to Changchun University of Chinise Medicine, Changchun, Jilin 130021, China
| | - Feng Qi
- Department of Cardiology, The affiliated hospital to Changchun University of Chinise Medicine, Changchun, Jilin 130021, China
| | - Mohammad J Rezaei
- Institute for Immunology and Immune Health, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, United States.
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Sun Y, Tao Y, Geng Z, Zheng F, Wang Y, Wang Y, Fu S, Wang W, Xie C, Zhang Y, Gong F. The activation of CaN/NFAT signaling pathway in macrophages aggravated Lactobacillus casei cell wall extract-induced Kawasaki disease vasculitis. Cytokine 2023; 169:156304. [PMID: 37487381 DOI: 10.1016/j.cyto.2023.156304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Revised: 06/23/2023] [Accepted: 07/17/2023] [Indexed: 07/26/2023]
Abstract
OBJECTIVES By using GWAS(genome-wide association studies) and linkage disequilibrium analysis to investigate the susceptibility genes of KD(Kawasaki disease), previous studies have identified that the CaN(calcineurin)-NFAT(the nuclear factor of activated T cell) signal pathway were significantly associated with susceptibility to KD. However, little is known about the molecular basis of the CaN/NFAT pathway involved in KD. Therefore, in our study we investigate the role of Ca2+/CaN/NFAT signaling pathway in macrophages in vitro and in vivo on coronary artery lesions induced by LCWE (Lactobacillus casei cell wall extract). METHODS AND RESULTS We observed that LCWE could increase the expression of NFAT1 and NFAT2 in macrophages in vitro, and also enhance the transcriptional activity of NFAT by promoting the nucleus translocation. Similarly, in LCWE-induced mice model, the expression of NFAT1 and NFAT2 and associated proinflammatory factors were increased significantly. In addition, by knocking down or overexpressing NFAT1 or NFAT2 in macrophages, the results indicated that NFAT signaling pathway mediated LCWE-induced immune responses in macrophages and regulated the synthesis of IL(interleukin)-6, IL-1β and TNF(tumor necrosis factor)-α in LCWE-induced macrophage activation. As well, we found that this process could be suppressed by CaN inhibitor CsA(cyclosporinA). CONCLUSIONS Therefore, the CaN/NFAT signaling pathway mediated LCWE-induced immune responses in macrophages, and also participated in the LCWE-induced CALs(coronary artery lesions). And also the inhibitory effect of CsA in LCWE-induced cell model towards a strategy to modulate the CaN/NFAT pathway during the acute course of KD might be helpful in alleviate KD-induced CALs.
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Affiliation(s)
- Yameng Sun
- Department of Cardiology, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health. No. 3333 Binsheng Road, Hangzhou 310052, PR China
| | - Yijing Tao
- Department of Cardiology, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health. No. 3333 Binsheng Road, Hangzhou 310052, PR China
| | - Zhimin Geng
- Department of Cardiology, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health. No. 3333 Binsheng Road, Hangzhou 310052, PR China
| | - Fenglei Zheng
- Department of Cardiology, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health. No. 3333 Binsheng Road, Hangzhou 310052, PR China
| | - Ying Wang
- Department of Cardiology, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health. No. 3333 Binsheng Road, Hangzhou 310052, PR China
| | - Yujia Wang
- Department of Cardiology, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health. No. 3333 Binsheng Road, Hangzhou 310052, PR China
| | - Songling Fu
- Department of Cardiology, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health. No. 3333 Binsheng Road, Hangzhou 310052, PR China
| | - Wei Wang
- Department of Cardiology, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health. No. 3333 Binsheng Road, Hangzhou 310052, PR China
| | - Chunhong Xie
- Department of Cardiology, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health. No. 3333 Binsheng Road, Hangzhou 310052, PR China
| | - Yiying Zhang
- Department of Cardiology, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health. No. 3333 Binsheng Road, Hangzhou 310052, PR China
| | - Fangqi Gong
- Department of Cardiology, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health. No. 3333 Binsheng Road, Hangzhou 310052, PR China.
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Cho MJ, Lee DG, Lee JW, Hwang B, Yoon SJ, Lee SJ, Park YJ, Park SH, Lee HG, Kim YH, Lee CH, Lee J, Lee NK, Han TS, Cho HS, Moon JH, Lee GS, Bae KH, Hwang GS, Lee SH, Chung SJ, Shim S, Cho J, Oh GT, Kwon YG, Park JG, Min JK. Endothelial PTP4A1 mitigates vascular inflammation via USF1/A20 axis-mediated NF-κB inactivation. Cardiovasc Res 2023; 119:1265-1278. [PMID: 36534975 PMCID: PMC10411943 DOI: 10.1093/cvr/cvac193] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 09/08/2022] [Accepted: 11/08/2022] [Indexed: 12/23/2022] Open
Abstract
AIMS The nuclear factor-κB (NF-κB) signalling pathway plays a critical role in the pathogenesis of multiple vascular diseases. However, in endothelial cells (ECs), the molecular mechanisms responsible for the negative regulation of the NF-κB pathway are poorly understood. In this study, we investigated a novel role for protein tyrosine phosphatase type IVA1 (PTP4A1) in NF-κB signalling in ECs. METHODS AND RESULTS In human tissues, human umbilical artery ECs, and mouse models for loss of function and gain of function of PTP4A1, we conducted histological analysis, immunostaining, laser-captured microdissection assay, lentiviral infection, small interfering RNA transfection, quantitative real-time PCR and reverse transcription-PCR, as well as luciferase reporter gene and chromatin immunoprecipitation assays. Short hairpin RNA-mediated knockdown of PTP4A1 and overexpression of PTP4A1 in ECs indicated that PTP4A1 is critical for inhibiting the expression of cell adhesion molecules (CAMs). PTP4A1 increased the transcriptional activity of upstream stimulatory factor 1 (USF1) by dephosphorylating its S309 residue and subsequently inducing the transcription of tumour necrosis factor-alpha-induced protein 3 (TNFAIP3/A20) and the inhibition of NF-κB activity. Studies on Ptp4a1 knockout or transgenic mice demonstrated that PTP4A1 potently regulates the interleukin 1β-induced expression of CAMs in vivo. In addition, we verified that PTP4A1 deficiency in apolipoprotein E knockout mice exacerbated high-fat high-cholesterol diet-induced atherogenesis with upregulated expression of CAMs. CONCLUSION Our data indicate that PTP4A1 is a novel negative regulator of vascular inflammation by inducing USF1/A20 axis-mediated NF-κB inactivation. Therefore, the expression and/or activation of PTP4A1 in ECs might be useful for the treatment of vascular inflammatory diseases.
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Affiliation(s)
- Min Ji Cho
- Biotherapeutics Translational Research Centre, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Dong Gwang Lee
- Biotherapeutics Translational Research Centre, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Jeong Woong Lee
- Biotherapeutics Translational Research Centre, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Byungtae Hwang
- Biotherapeutics Translational Research Centre, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Sung-Jin Yoon
- Environmental Disease Research Centre, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Seon-Jin Lee
- Environmental Disease Research Centre, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Young-Jun Park
- Environmental Disease Research Centre, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Seung-Ho Park
- Environmental Disease Research Centre, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Hee Gu Lee
- Immunotherapy Convergence Research Centre, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Yong-Hoon Kim
- Laboratory Animal Resource Centre, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Chul-Ho Lee
- Laboratory Animal Resource Centre, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Jangwook Lee
- Biotherapeutics Translational Research Centre, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Nam-Kyung Lee
- Biotherapeutics Translational Research Centre, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Tae-Su Han
- Biotherapeutics Translational Research Centre, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Hyun-Soo Cho
- Stem Cell Convergence Research Centre, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Jeong Hee Moon
- Disease Target Structure Research Centre, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Ga Seul Lee
- Disease Target Structure Research Centre, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Kwang-Hee Bae
- Metabolic Regulation Research Centre, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Geum-Sook Hwang
- Integrated Metabolomics Research Group, Western Seoul Centre, Korea Basic Science Institute, 150 Bugahyeon-ro, Seodaemun-gu, Seoul 03759, Republic of Korea
| | - Sang-Hak Lee
- Division of Cardiology, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Sang J Chung
- School of Pharmacy, Sungkyunkwan University, 2066 Seobu-ro, Jangan-gu, Suwon 16419, Republic of Korea
| | - Sungbo Shim
- Department of Biochemistry, Chungbuk National University, 1 Chungdae-ro, Seowon-gu, Cheongju 28644, Republic of Korea
| | - Jaehyung Cho
- Division of Haematology, Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110, USA
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Goo Taeg Oh
- Heart-Immune-Brain Network Research Centre, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul 03760, Republic of Korea
| | - Young-Guen Kwon
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Jong-Gil Park
- Biotherapeutics Translational Research Centre, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
- Department of Bioscience, KRIBB School of Bioscience, Korea University of Science and Technology (UST), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Jeong-Ki Min
- Biotherapeutics Translational Research Centre, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
- Department of Bioscience, KRIBB School of Bioscience, Korea University of Science and Technology (UST), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
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Massicotte-Azarniouch D, Herrera CA, Jennette JC, Falk RJ, Free ME. Mechanisms of vascular damage in ANCA vasculitis. Semin Immunopathol 2022; 44:325-345. [PMID: 35254509 PMCID: PMC9064952 DOI: 10.1007/s00281-022-00920-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Accepted: 02/02/2022] [Indexed: 12/12/2022]
Abstract
The discovery of anti-neutrophil cytoplasmic antibodies (ANCA) and their antigenic targets, myeloperoxidase (MPO) and proteinase 3 (PR3), has led to further understanding as to the pathophysiologic processes that underlie vascular and tissue damage in ANCA vasculitis. ANCA trigger neutrophil activation leading to vascular damage in ANCA vasculitis. However, decades of study have determined that neutrophil activation alone is not sufficient to cause disease. Inflammatory stimuli are drivers of ANCA autoantigen expression and ANCA production. Certain infections or bacterial peptides may be crucial players in the initial steps of ANCA immunopathogenesis. Genetic and epigenetic alterations of gene encoding for MPO and PR3 provide additional disturbances to the immune homeostasis which provide a substrate for pathogenic ANCA formation from an adaptive immune system predisposed to autoreactivity. Promoted by inflammatory cytokines, ANCA binding leads to neutrophil activation, a process characterized by conformational changes, production and release of cytotoxic substances, and alternative complement pathway activation, thus creating an intense inflammatory milieu. This cascade of events perpetuates a vicious cycle of further inflammatory cell recruitment and activation, culminating in tissue necrosis. Our understanding of the pathogenic process in ANCA vasculitis paves the way for the development of therapies targeting crucial steps in this process. The greater appreciation of the role for complement, monocytes, and the adaptive immune system has already led to novel complement blockers and is poised to lead to further innovations which will allow for tailored antigen- or cell-specific immunotherapy targeting the autoimmune process without exposure to undue risks or toxicities.
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Affiliation(s)
- David Massicotte-Azarniouch
- Division of Nephrology and Hypertension, Department of Medicine, University of North Carolina, Chapel Hill, NC, USA
| | - Carolina A Herrera
- Division of Nephrology and Hypertension, Department of Medicine, University of North Carolina, Chapel Hill, NC, USA
- Department of Pathology and Laboratory Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - J Charles Jennette
- Department of Pathology and Laboratory Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Ronald J Falk
- Division of Nephrology and Hypertension, Department of Medicine, University of North Carolina, Chapel Hill, NC, USA
| | - Meghan E Free
- Division of Nephrology and Hypertension, Department of Medicine, University of North Carolina, Chapel Hill, NC, USA.
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Argyropoulou OD, Goules AV, Boutzios G, Tsirogianni A, Sfontouris C, Manoussakis MN, Vlachoyiannopoulos PG, Tzioufas AG, Kapsogeorgou EK. Occurrence and Antigenic Specificity of Perinuclear Anti-Neutrophil Cytoplasmic Antibodies (P-ANCA) in Systemic Autoimmune Diseases. Cells 2021; 10:cells10082128. [PMID: 34440897 PMCID: PMC8393570 DOI: 10.3390/cells10082128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 08/12/2021] [Accepted: 08/17/2021] [Indexed: 11/26/2022] Open
Abstract
Perinuclear anti-neutrophilic cytoplasmic antibodies (P-ANCA) recognize heterogeneous antigens, including myeloperoxidase (MPO), lactoferrin, elastase, cathepsin-G and bactericidal/permeability-increasing protein. Although P-ANCA have diagnostic utility in vasculitides, they may also be found in patients with various other systemic autoimmune rheumatic diseases (SARDs). Nevertheless, the clinical significance and the targets recognized by P-ANCA in such patients remain unclear. For this purpose, herein we investigated the occurrence of ANCA-related antigenic specificities in 82 P-ANCA-positive sera by multiplex ELISA, as well as their association with other autoantibodies. The P-ANCA-positive sera corresponded to patients with vasculitides (n = 24), systemic lupus erythematosus (n = 28), antiphospholipid syndrome (n = 5), Sjögren’s syndrome (n = 7), rheumatoid arthritis (n = 3), systemic scleroderma (n = 1), sarcoidosis (n = 1) and Hashimoto′s thyroiditis (n = 13). In most P-ANCA-positive patients studied (51/82, 62.3%), these autoantibodies occurred in high titers (>1:160). The analysis of P-ANCA-positive sera revealed reactivity to MPO in only 50% of patients with vasculitides, whereas it was infrequent in the other disease groups studied. Reactivity to other P-ANCA-related autoantigens was also rarely detected. Our findings support that high P-ANCA titers occur in SARD. The P-ANCA-positive staining pattern is associated with MPO specificity in vasculitides, while in other autoimmune diseases, it mostly involves unknown autoantigens.
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Affiliation(s)
- Ourania D. Argyropoulou
- Department of Pathophysiology, School of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece; (O.D.A.); (G.B.); (M.N.M.); (P.G.V.); (A.G.T.); (E.K.K.)
- Joint Rheumatology Academic Program, School of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece
| | - Andreas V. Goules
- Department of Pathophysiology, School of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece; (O.D.A.); (G.B.); (M.N.M.); (P.G.V.); (A.G.T.); (E.K.K.)
- Joint Rheumatology Academic Program, School of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece
- Correspondence: ; Tel.: +30-210-7462-513
| | - Georgios Boutzios
- Department of Pathophysiology, School of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece; (O.D.A.); (G.B.); (M.N.M.); (P.G.V.); (A.G.T.); (E.K.K.)
| | - Alexandra Tsirogianni
- Department of Immunology and Histocompatibility, Evangelismos General Hospital, 10676 Athens, Greece;
| | | | - Menelaos N. Manoussakis
- Department of Pathophysiology, School of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece; (O.D.A.); (G.B.); (M.N.M.); (P.G.V.); (A.G.T.); (E.K.K.)
- Joint Rheumatology Academic Program, School of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece
| | - Panayiotis G. Vlachoyiannopoulos
- Department of Pathophysiology, School of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece; (O.D.A.); (G.B.); (M.N.M.); (P.G.V.); (A.G.T.); (E.K.K.)
- Joint Rheumatology Academic Program, School of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece
| | - Athanasios G. Tzioufas
- Department of Pathophysiology, School of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece; (O.D.A.); (G.B.); (M.N.M.); (P.G.V.); (A.G.T.); (E.K.K.)
- Joint Rheumatology Academic Program, School of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece
| | - Efstathia K. Kapsogeorgou
- Department of Pathophysiology, School of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece; (O.D.A.); (G.B.); (M.N.M.); (P.G.V.); (A.G.T.); (E.K.K.)
- Joint Rheumatology Academic Program, School of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece
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Sawalha K, Kunnumpurath A, Singh S, Kamoga GR. It Is Just a Rash They Said! Acute Skin Manifestation in a Patient With Vasculitis in Rural Hospitals. J Investig Med High Impact Case Rep 2021; 8:2324709620966446. [PMID: 33090049 PMCID: PMC7585880 DOI: 10.1177/2324709620966446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
A 76-year-old Caucasian male with a history of rheumatoid arthritis, Raynaud’s phenomenon, pulmonary embolism on warfarin, and a previous amputation of his left partial ring and fifth finger presented with acute onset of rash in bilateral lower extremities. He was recently started on trimethoprim-sulfamethoxazole due to concern for cellulitis. Differential diagnosis for acute-onset rash with the patient’s history presented as a challenge to the internist, as the differential is broad. Our case goes through the differential diagnosis to contrast the different presentations of rash in a patient with vasculitis. Ultimately skin biopsy in conjunction with a past positive cryoglobulinemic level helped confirm the diagnosis of cutaneous vasculitis, following which he was started on appropriate treatment and recovered.
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Affiliation(s)
- Khalid Sawalha
- White River Health System, Batesville, AR, USA
- Khalid Sawalha, MD, White River Health System Inc, 1710 Harrison Street, Batesville, AR 72501, USA.
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Medina-Leyte DJ, Zepeda-García O, Domínguez-Pérez M, González-Garrido A, Villarreal-Molina T, Jacobo-Albavera L. Endothelial Dysfunction, Inflammation and Coronary Artery Disease: Potential Biomarkers and Promising Therapeutical Approaches. Int J Mol Sci 2021; 22:ijms22083850. [PMID: 33917744 PMCID: PMC8068178 DOI: 10.3390/ijms22083850] [Citation(s) in RCA: 126] [Impact Index Per Article: 42.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 03/24/2021] [Accepted: 03/25/2021] [Indexed: 12/14/2022] Open
Abstract
Coronary artery disease (CAD) and its complications are the leading cause of death worldwide. Inflammatory activation and dysfunction of the endothelium are key events in the development and pathophysiology of atherosclerosis and are associated with an elevated risk of cardiovascular events. There is great interest to further understand the pathophysiologic mechanisms underlying endothelial dysfunction and atherosclerosis progression, and to identify novel biomarkers and therapeutic strategies to prevent endothelial dysfunction, atherosclerosis and to reduce the risk of developing CAD and its complications. The use of liquid biopsies and new molecular biology techniques have allowed the identification of a growing list of molecular and cellular markers of endothelial dysfunction, which have provided insight on the molecular basis of atherosclerosis and are potential biomarkers and therapeutic targets for the prevention and or treatment of atherosclerosis and CAD. This review describes recent information on normal vascular endothelium function, as well as traditional and novel potential biomarkers of endothelial dysfunction and inflammation, and pharmacological and non-pharmacological therapeutic strategies aimed to protect the endothelium or reverse endothelial damage, as a preventive treatment for CAD and related complications.
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Affiliation(s)
- Diana Jhoseline Medina-Leyte
- Genomics of Cardiovascular Diseases Laboratory, National Institute of Genomic Medicine (INMEGEN), Mexico City 14610, Mexico; (D.J.M.-L.); (O.Z.-G.); (M.D.-P.); (A.G.-G.); (T.V.-M.)
- Posgrado en Ciencias Biológicas, Universidad Nacional Autónoma de México (UNAM), Coyoacán, Mexico City 04510, Mexico
| | - Oscar Zepeda-García
- Genomics of Cardiovascular Diseases Laboratory, National Institute of Genomic Medicine (INMEGEN), Mexico City 14610, Mexico; (D.J.M.-L.); (O.Z.-G.); (M.D.-P.); (A.G.-G.); (T.V.-M.)
- Posgrado en Ciencias Biológicas, Universidad Nacional Autónoma de México (UNAM), Coyoacán, Mexico City 04510, Mexico
| | - Mayra Domínguez-Pérez
- Genomics of Cardiovascular Diseases Laboratory, National Institute of Genomic Medicine (INMEGEN), Mexico City 14610, Mexico; (D.J.M.-L.); (O.Z.-G.); (M.D.-P.); (A.G.-G.); (T.V.-M.)
| | - Antonia González-Garrido
- Genomics of Cardiovascular Diseases Laboratory, National Institute of Genomic Medicine (INMEGEN), Mexico City 14610, Mexico; (D.J.M.-L.); (O.Z.-G.); (M.D.-P.); (A.G.-G.); (T.V.-M.)
| | - Teresa Villarreal-Molina
- Genomics of Cardiovascular Diseases Laboratory, National Institute of Genomic Medicine (INMEGEN), Mexico City 14610, Mexico; (D.J.M.-L.); (O.Z.-G.); (M.D.-P.); (A.G.-G.); (T.V.-M.)
| | - Leonor Jacobo-Albavera
- Genomics of Cardiovascular Diseases Laboratory, National Institute of Genomic Medicine (INMEGEN), Mexico City 14610, Mexico; (D.J.M.-L.); (O.Z.-G.); (M.D.-P.); (A.G.-G.); (T.V.-M.)
- Correspondence: ; Tel.: +55-5350-1900
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Ho B, Larkin J, Heelan K. Checkpoint Inhibitor-associated Cutaneous Small Vessel Vasculitis: A Review of the Literature. J Immunother 2021; 44:118-121. [PMID: 33323871 DOI: 10.1097/cji.0000000000000352] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Accepted: 11/10/2020] [Indexed: 11/25/2022]
Abstract
Checkpoint inhibitor therapy is an established cancer treatment option often complicated by the development of immune-related adverse events. Vasculitis has been reported with a broad spectrum of both cutaneous and systemic manifestations and can be complicated by delayed diagnosis. The authors report 2 histologically proven cases of cutaneous leucocytoclastic vasculitis induced by programmed cell-death 1 inhibitor inhibitor nivolumab. As physicians, including medical oncologists and dermatologists, we need to be aware of this clinical entity and the importance of clinicopathological confirmation in this setting to confirm the diagnosis to help guide the management of these complex patients.
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Affiliation(s)
- Bernard Ho
- Department of Dermatology, Epsom and St Helier University Hospitals, Sutton
| | | | - Kara Heelan
- Dermatology, The Royal Marsden NHS Foundation Trust, Chelsea, London, UK
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9
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Xie X, Cong L, Liu S, Xiang L, Fu X. Genistein alleviates chronic vascular inflammatory response via the miR‑21/NF‑κB p65 axis in lipopolysaccharide‑treated mice. Mol Med Rep 2021; 23:192. [PMID: 33495831 PMCID: PMC7809901 DOI: 10.3892/mmr.2021.11831] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Accepted: 12/09/2020] [Indexed: 12/24/2022] Open
Abstract
Chronic vascular inflammatory response is an important pathological basis of cardiovascular disease. Genistein (GEN), a natural compound, exhibits anti‑inflammatory effects. The aim of the present study was to investigate the effects of GEN on lipopolysaccharide (LPS)‑induced chronic vascular inflammatory response in mice and explore the underlying anti‑inflammatory mechanisms. C57BL/6 mice were fed with a high‑fat diet combined with intraperitoneal injection of LPS to induce chronic vascular inflammation. The expression levels of TNF‑α, IL‑6 and microRNA (miR)‑21 in the vasculature were detected via reverse transcription‑quantitative (RT‑q)PCR. The protein levels of inducible nitric oxide synthase (iNOS) and NF‑κB p65 were detected via western blotting. NF‑κB p65 was also analyzed via immunohistochemistry and immunofluorescence (IF). In addition, after transfection with miR‑21 mimic or inhibitor for 24 h, vascular endothelial cells (VECs) were treated with GEN and LPS. RT‑qPCR and western blot analyses were performed to detect the expression of TNF‑α, IL‑6, miR‑21 and iNOS, and the protein levels of iNOS and NF‑κB p65, respectively. IF was used to measure NF‑κB p65 nuclear translocation. The results revealed that GEN significantly decreased the expression of inflammation‑associated vascular factors in LPS‑treated C57BL/6 mice, including TNF‑α, IL‑6, iNOS, NF‑κB p65 and miR‑21. Furthermore, miR‑21 antagomir enhanced the anti‑inflammatory effects of GEN. In LPS‑induced VECs, miR‑21 mimic increased inflammation‑associated factor expression and attenuated the anti‑inflammatory effects of GEN, whereas miR‑21 inhibitor induced opposing effects. Therefore, the results of the present study suggested that GEN inhibited chronic vascular inflammatory response in mice, which may be associated with the inhibition of VEC inflammatory injury via the miR‑21/NF‑κB p65 pathway.
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Affiliation(s)
- Xiaolin Xie
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, Hunan Normal University, Changsha, Hunan 410013, P.R. China
- Department of Basic Medicine, School of Medicine, Hunan Normal University, Changsha, Hunan 410013, P.R. China
| | - Li Cong
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, Hunan Normal University, Changsha, Hunan 410013, P.R. China
| | - Sujuan Liu
- Department of Basic Medicine, School of Medicine, Hunan Normal University, Changsha, Hunan 410013, P.R. China
| | - Liping Xiang
- Department of Pathology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Xiaohua Fu
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, Hunan Normal University, Changsha, Hunan 410013, P.R. China
- Department of Basic Medicine, School of Medicine, Hunan Normal University, Changsha, Hunan 410013, P.R. China
- Correspondence to: Professor Xiaohua Fu, Department of Basic Medicine, School of Medicine, Hunan Normal University, 371 Tongzipo Road, Changsha, Hunan 410013, P.R. China, E-mail:
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10
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Maiuolo J, Mollace R, Gliozzi M, Musolino V, Carresi C, Paone S, Scicchitano M, Macrì R, Nucera S, Bosco F, Scarano F, Zito MC, Ruga S, Tavernese A, Mollace V. The Contribution of Endothelial Dysfunction in Systemic Injury Subsequent to SARS-Cov-2 Infection. Int J Mol Sci 2020; 21:E9309. [PMID: 33291346 PMCID: PMC7730352 DOI: 10.3390/ijms21239309] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 11/28/2020] [Accepted: 12/04/2020] [Indexed: 02/06/2023] Open
Abstract
SARS-CoV-2 (Severe Acute Respiratory Syndrome Coronavirus 2) infection is associated, alongside with lung infection and respiratory disease, to cardiovascular dysfunction that occurs at any stage of the disease. This includes ischemic heart disease, arrhythmias, and cardiomyopathies. The common pathophysiological link between SARS-CoV-2 infection and the cardiovascular events is represented by coagulation abnormalities and disruption of factors released by endothelial cells, which contribute in maintaining the blood vessels into an anti-thrombotic state. Thus, early alteration of the functionality of endothelial cells, which may be found soon after SARS-CoV-2 infection, seems to represent the major target of a SARS CoV-2 disease state and accounts for the systemic vascular dysfunction that leads to a detrimental effect in terms of hospitalization and death accompanying the disease. In particular, the molecular interaction of SARS-CoV-2 with the ACE2 receptor located in the endothelial cell surface, either at the pulmonary and systemic level, leads to early impairment of endothelial function, which, in turn, is followed by vascular inflammation and thrombosis of peripheral blood vessels. This highlights systemic hypoxia and further aggravates the vicious circle that compromises the development of the disease, leading to irreversible tissue damage and death of people with SARS CoV-2 infection. The review aims to assess some recent advances to define the crucial role of endothelial dysfunction in the pathogenesis of vascular complications accompanying SARS-CoV-2 infection. In particular, the molecular mechanisms associated with the interaction of SARS CoV-2 with the ACE2 receptor located on the endothelial cells are highlighted to support its role in compromising endothelial cell functionality. Finally, the consequences of endothelial dysfunction in enhancing pro-inflammatory and pro-thrombotic effects of SARS-CoV-2 infection are assessed in order to identify early therapeutic interventions able to reduce the impact of the disease in high-risk patients.
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Affiliation(s)
- Jessica Maiuolo
- Institute of Research for Food Safety & Health IRC-FSH, University Magna Graecia, 88100 Catanzaro, Italy; (J.M.); (R.M.); (M.G.); (V.M.); (C.C.); (S.P.); (M.S.); (R.M.); (S.N.); (F.B.); (F.S.); (M.C.Z.); (S.R.); (A.T.)
- Nutramed S.c.a.r.l., Complesso Ninì Barbieri, Roccelletta di Borgia, 88021 Catanzaro, Italy
| | - Rocco Mollace
- Institute of Research for Food Safety & Health IRC-FSH, University Magna Graecia, 88100 Catanzaro, Italy; (J.M.); (R.M.); (M.G.); (V.M.); (C.C.); (S.P.); (M.S.); (R.M.); (S.N.); (F.B.); (F.S.); (M.C.Z.); (S.R.); (A.T.)
- Department of Medicine, Chair of Cardiology, University of Rome Tor Vergata, 00133 Roma, Italy
| | - Micaela Gliozzi
- Institute of Research for Food Safety & Health IRC-FSH, University Magna Graecia, 88100 Catanzaro, Italy; (J.M.); (R.M.); (M.G.); (V.M.); (C.C.); (S.P.); (M.S.); (R.M.); (S.N.); (F.B.); (F.S.); (M.C.Z.); (S.R.); (A.T.)
- Nutramed S.c.a.r.l., Complesso Ninì Barbieri, Roccelletta di Borgia, 88021 Catanzaro, Italy
| | - Vincenzo Musolino
- Institute of Research for Food Safety & Health IRC-FSH, University Magna Graecia, 88100 Catanzaro, Italy; (J.M.); (R.M.); (M.G.); (V.M.); (C.C.); (S.P.); (M.S.); (R.M.); (S.N.); (F.B.); (F.S.); (M.C.Z.); (S.R.); (A.T.)
- Nutramed S.c.a.r.l., Complesso Ninì Barbieri, Roccelletta di Borgia, 88021 Catanzaro, Italy
| | - Cristina Carresi
- Institute of Research for Food Safety & Health IRC-FSH, University Magna Graecia, 88100 Catanzaro, Italy; (J.M.); (R.M.); (M.G.); (V.M.); (C.C.); (S.P.); (M.S.); (R.M.); (S.N.); (F.B.); (F.S.); (M.C.Z.); (S.R.); (A.T.)
- Nutramed S.c.a.r.l., Complesso Ninì Barbieri, Roccelletta di Borgia, 88021 Catanzaro, Italy
| | - Sara Paone
- Institute of Research for Food Safety & Health IRC-FSH, University Magna Graecia, 88100 Catanzaro, Italy; (J.M.); (R.M.); (M.G.); (V.M.); (C.C.); (S.P.); (M.S.); (R.M.); (S.N.); (F.B.); (F.S.); (M.C.Z.); (S.R.); (A.T.)
- Nutramed S.c.a.r.l., Complesso Ninì Barbieri, Roccelletta di Borgia, 88021 Catanzaro, Italy
| | - Miriam Scicchitano
- Institute of Research for Food Safety & Health IRC-FSH, University Magna Graecia, 88100 Catanzaro, Italy; (J.M.); (R.M.); (M.G.); (V.M.); (C.C.); (S.P.); (M.S.); (R.M.); (S.N.); (F.B.); (F.S.); (M.C.Z.); (S.R.); (A.T.)
| | - Roberta Macrì
- Institute of Research for Food Safety & Health IRC-FSH, University Magna Graecia, 88100 Catanzaro, Italy; (J.M.); (R.M.); (M.G.); (V.M.); (C.C.); (S.P.); (M.S.); (R.M.); (S.N.); (F.B.); (F.S.); (M.C.Z.); (S.R.); (A.T.)
- Nutramed S.c.a.r.l., Complesso Ninì Barbieri, Roccelletta di Borgia, 88021 Catanzaro, Italy
| | - Saverio Nucera
- Institute of Research for Food Safety & Health IRC-FSH, University Magna Graecia, 88100 Catanzaro, Italy; (J.M.); (R.M.); (M.G.); (V.M.); (C.C.); (S.P.); (M.S.); (R.M.); (S.N.); (F.B.); (F.S.); (M.C.Z.); (S.R.); (A.T.)
- Nutramed S.c.a.r.l., Complesso Ninì Barbieri, Roccelletta di Borgia, 88021 Catanzaro, Italy
| | - Francesca Bosco
- Institute of Research for Food Safety & Health IRC-FSH, University Magna Graecia, 88100 Catanzaro, Italy; (J.M.); (R.M.); (M.G.); (V.M.); (C.C.); (S.P.); (M.S.); (R.M.); (S.N.); (F.B.); (F.S.); (M.C.Z.); (S.R.); (A.T.)
- Nutramed S.c.a.r.l., Complesso Ninì Barbieri, Roccelletta di Borgia, 88021 Catanzaro, Italy
| | - Federica Scarano
- Institute of Research for Food Safety & Health IRC-FSH, University Magna Graecia, 88100 Catanzaro, Italy; (J.M.); (R.M.); (M.G.); (V.M.); (C.C.); (S.P.); (M.S.); (R.M.); (S.N.); (F.B.); (F.S.); (M.C.Z.); (S.R.); (A.T.)
- Nutramed S.c.a.r.l., Complesso Ninì Barbieri, Roccelletta di Borgia, 88021 Catanzaro, Italy
| | - Maria Caterina Zito
- Institute of Research for Food Safety & Health IRC-FSH, University Magna Graecia, 88100 Catanzaro, Italy; (J.M.); (R.M.); (M.G.); (V.M.); (C.C.); (S.P.); (M.S.); (R.M.); (S.N.); (F.B.); (F.S.); (M.C.Z.); (S.R.); (A.T.)
| | - Stefano Ruga
- Institute of Research for Food Safety & Health IRC-FSH, University Magna Graecia, 88100 Catanzaro, Italy; (J.M.); (R.M.); (M.G.); (V.M.); (C.C.); (S.P.); (M.S.); (R.M.); (S.N.); (F.B.); (F.S.); (M.C.Z.); (S.R.); (A.T.)
| | - Annamaria Tavernese
- Institute of Research for Food Safety & Health IRC-FSH, University Magna Graecia, 88100 Catanzaro, Italy; (J.M.); (R.M.); (M.G.); (V.M.); (C.C.); (S.P.); (M.S.); (R.M.); (S.N.); (F.B.); (F.S.); (M.C.Z.); (S.R.); (A.T.)
- Department of Medicine, Chair of Cardiology, University of Rome Tor Vergata, 00133 Roma, Italy
| | - Vincenzo Mollace
- Institute of Research for Food Safety & Health IRC-FSH, University Magna Graecia, 88100 Catanzaro, Italy; (J.M.); (R.M.); (M.G.); (V.M.); (C.C.); (S.P.); (M.S.); (R.M.); (S.N.); (F.B.); (F.S.); (M.C.Z.); (S.R.); (A.T.)
- Nutramed S.c.a.r.l., Complesso Ninì Barbieri, Roccelletta di Borgia, 88021 Catanzaro, Italy
- IRCCS San Raffaele Pisana, 00163 Roma, Italy
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11
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Hu T, Luo Z, Li K, Wang S, Wu D. Zanthoxylum nitidum extract attenuates BMP-2-induced inflammation and hyperpermeability. Biosci Rep 2020; 40:226607. [PMID: 33030503 PMCID: PMC7584816 DOI: 10.1042/bsr20201098] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Revised: 09/10/2020] [Accepted: 10/07/2020] [Indexed: 02/07/2023] Open
Abstract
Bone morphogenetic protein-2 (BMP-2) is commonly applied in spinal surgery to augment spinal fusion. Nevertheless, its pro-inflammatory potential could induce dangerous side effects such as vascular hyper-permeability, posing the need for manners against this condition. The present study aims to investigate the protective effect of Zanthoxylum nitidum (ZN) on BMP-2-related hyperpermeability and inflammation on the human umbilical vein endothelial cells (HUVECs). The results revealed that, in a concentration-dependent manner, BMP-2 enhanced the production of pro-inflammatory cytokines, including interleukin (IL)-1α, IL-1β, and tumor necrosis factor-α, which were, however, suppressed by ZN. ZN inhibited BMP-2-induced inflammatory response by suppressing the phosphorylation of NF-κBp65 and IκB, and the abnormal nuclear translocation of p65. Moreover, the inhibited expression intercellular tight junction protein VE-cadherin and Occludin caused by BMP-2 was blocked by ZN. The hyper-permeability of HUVECs induced by BMP-2, as expressed as the higher fluorescent intensity of dextran, was also reversed by ZN. Overall, these findings demonstrated that ZN antagonized BMP-2-induced inflammation and hyperpermeability. It could be a therapeutic candidate for the treatment of BMP-2-induced side effects during spinal fusion.
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Affiliation(s)
- Tao Hu
- Department of Spine Surgery, Shanghai East Hospital, Tongji University School of Medicine, China
| | - Zhiwen Luo
- Department of Sports Medicine, Huashan Hospital, Fudan University, China
| | - Kai Li
- Key Laboratory of Inorganic Coating Materials CAS, Shanghai Institute of Ceramics, Chinese Academy of Sciences, China
| | - Shanjin Wang
- Department of Spine Surgery, Shanghai East Hospital, Tongji University School of Medicine, China
| | - Desheng Wu
- Department of Spine Surgery, Shanghai East Hospital, Tongji University School of Medicine, China
- Correspondence: Desheng Wu ()
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12
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Li C, Zhang S, Chen X, Ji J, Yang W, Gui T, Gai Z, Li Y. Farnesoid X receptor activation inhibits TGFBR1/TAK1-mediated vascular inflammation and calcification via miR-135a-5p. Commun Biol 2020; 3:327. [PMID: 32581266 PMCID: PMC7314757 DOI: 10.1038/s42003-020-1058-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Accepted: 06/08/2020] [Indexed: 01/06/2023] Open
Abstract
Chronic inflammation plays a crucial role in vascular calcification. However, only a few studies have revealed the mechanisms underlying the development of inflammation under high-phosphate conditions in chronic kidney disease (CKD) patients. Here, we show that inflammation resulting from the activation of the TGFBR1/TAK1 pathway is involved in calcification in CKD rats or osteogenic medium-cultured human aortic smooth muscle cells (HASMCs). Moreover, miR-135a-5p is demonstrated to be a key regulator of the TGFBR1/TAK1 pathway, which has been reported to be decreased in CKD rats. We further reveal that farnesoid X receptor (FXR) activation increases miR-135a-5p expression, thereby inhibiting the activation of the TGFBR1/TAK1 pathway, ultimately resulting in the attenuation of vascular inflammation and calcification in CKD rats. Our findings provide advanced insights into the mechanisms underlying the development of inflammation in vascular calcification, and evidence that FXR activation could serve as a therapeutic strategy for retarding vascular calcification in CKD patients.
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MESH Headings
- Animals
- Aorta/cytology
- Calcinosis/genetics
- Calcinosis/metabolism
- Cells, Cultured
- Female
- Humans
- MAP Kinase Kinase Kinases/genetics
- MAP Kinase Kinase Kinases/metabolism
- Male
- MicroRNAs/genetics
- Muscle, Smooth, Vascular/cytology
- Osteogenesis
- Rats, Wistar
- Receptor, Transforming Growth Factor-beta Type I/genetics
- Receptor, Transforming Growth Factor-beta Type I/metabolism
- Receptors, Cytoplasmic and Nuclear/genetics
- Receptors, Cytoplasmic and Nuclear/metabolism
- Renal Insufficiency, Chronic/etiology
- Renal Insufficiency, Chronic/pathology
- Vasculitis/genetics
- Vasculitis/metabolism
- Vasculitis/pathology
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Affiliation(s)
- Chao Li
- Experimental Center, Shandong University of Traditional Chinese Medicine, Jinan, 250355, China
- Department of Clinical Pharmacology and Toxicology, University Hospital Zurich, Zurich, 8032, Switzerland
| | - Shijun Zhang
- Experimental Center, Shandong University of Traditional Chinese Medicine, Jinan, 250355, China
| | - Xiaoqing Chen
- Experimental Center, Shandong University of Traditional Chinese Medicine, Jinan, 250355, China
| | - Jingkang Ji
- Experimental Center, Shandong University of Traditional Chinese Medicine, Jinan, 250355, China
| | - Wenqing Yang
- Experimental Center, Shandong University of Traditional Chinese Medicine, Jinan, 250355, China
| | - Ting Gui
- Experimental Center, Shandong University of Traditional Chinese Medicine, Jinan, 250355, China
| | - Zhibo Gai
- Experimental Center, Shandong University of Traditional Chinese Medicine, Jinan, 250355, China.
- Department of Clinical Pharmacology and Toxicology, University Hospital Zurich, Zurich, 8032, Switzerland.
| | - Yunlun Li
- Experimental Center, Shandong University of Traditional Chinese Medicine, Jinan, 250355, China.
- Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, 250000, China.
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13
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Del Gaudio I, Hendrix S, Christoffersen C, Wadsack C. Neonatal HDL Counteracts Placental Vascular Inflammation via S1P-S1PR1 Axis. Int J Mol Sci 2020; 21:ijms21030789. [PMID: 31991780 PMCID: PMC7037016 DOI: 10.3390/ijms21030789] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 01/20/2020] [Accepted: 01/21/2020] [Indexed: 12/19/2022] Open
Abstract
Placental inflammation and dysfunction during pregnancy are associated with short- and long-term adverse outcomes for the offspring. However, the mechanisms of vascular protection at the feto-placental interface are still poorly investigated. The high-density lipoprotein (HDL) associated sphingosine-1-phosphate (S1P) has been described as a powerful anti-inflammatory complex. This study aimed to elucidate the role of cord blood-derived HDL (nHDL) in feto-placental endothelial dysfunction. Here, we report that the exposure of primary fetal placental arterial endothelial cell (fPAEC) to healthy nHDL-S1P attenuated the ability of TNFα to activate NF-κB signaling and increase the expression of pro-inflammatory markers. Moreover, the angiotensin II (AngII)-induced reactive oxygen species (ROS) production was blunted in the presence of nHDL, whereas it was preserved when the cells were preincubated with S1P receptor antagonists, suggesting that S1P accounts for the vascular protective function of nHDL at the feto-placental unit. These results highlight the importance of HDL and S1P metabolism and signaling in pregnancy pathophysiology.
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Affiliation(s)
- Ilaria Del Gaudio
- Department of Obstetrics and Gynecology, Medical University of Graz, 8036 Graz, Austria; (I.D.G.); (S.H.)
| | - Sebastian Hendrix
- Department of Obstetrics and Gynecology, Medical University of Graz, 8036 Graz, Austria; (I.D.G.); (S.H.)
| | - Christina Christoffersen
- Department of Biomedical Sciences, University of Copenhagen, 1165 Copenhagen, Denmark;
- Department of Clinical Biochemistry, Rigshospitalet, 2100 Copenhagen, Denmark
| | - Christian Wadsack
- Department of Obstetrics and Gynecology, Medical University of Graz, 8036 Graz, Austria; (I.D.G.); (S.H.)
- Correspondence: ; Tel.: +43-316-385-81074
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14
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Zanatta E, Colombo C, D’Amico G, d’Humières T, Dal Lin C, Tona F. Inflammation and Coronary Microvascular Dysfunction in Autoimmune Rheumatic Diseases. Int J Mol Sci 2019; 20:ijms20225563. [PMID: 31703406 PMCID: PMC6888405 DOI: 10.3390/ijms20225563] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 10/31/2019] [Accepted: 11/05/2019] [Indexed: 02/07/2023] Open
Abstract
Autoimmune rheumatic diseases (ARDs) form a heterogeneous group of disorders that include systemic lupus erythematosus (SLE), systemic sclerosis (SSc), rheumatoid arthritis (RA), idiopathic inflammatory myopathies (IIMs), and systemic vasculitis. Coronary microvascular dysfunction (CMD) is quite common in patients with ARDs and is linked to increased cardiovascular morbidity and mortality. Inflammation plays a crucial role in the pathogenesis of both accelerated atherosclerosis and CMD in ARDs, especially in patients affected by SLE and RA. In this regard, some studies have highlighted the efficacy of immunosuppressants and/or biologics in restoring CMD in these patients. By contrast, the role of inflammation in the pathogenesis of CMD-SSc appears to be much less relevant compared to endothelial dysfunction and microvascular ischemia, with calcium-channel blockers providing some benefits. Few studies have endeavored to assess the occurrence of CMD in IIMs and systemic vasculitis, thus warranting further investigations. The present review summarizes the current evidence on the occurrence of CMD in ARDs, focusing on the role of inflammation and possible therapeutic approaches.
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Affiliation(s)
| | - Claudia Colombo
- Department of Cardiac, Thoracic, Vascular Sciences and Public Health, Padova University Hospital, 35128 Padua, Italy; (C.C.); (G.D.); (C.D.L.)
| | - Gianpiero D’Amico
- Department of Cardiac, Thoracic, Vascular Sciences and Public Health, Padova University Hospital, 35128 Padua, Italy; (C.C.); (G.D.); (C.D.L.)
| | - Thomas d’Humières
- Department of Cardiovascular Physiology, AP-HP, Henri-Mondor Teaching Hospital, 94010 Créteil, France;
| | - Carlo Dal Lin
- Department of Cardiac, Thoracic, Vascular Sciences and Public Health, Padova University Hospital, 35128 Padua, Italy; (C.C.); (G.D.); (C.D.L.)
| | - Francesco Tona
- Department of Cardiac, Thoracic, Vascular Sciences and Public Health, Padova University Hospital, 35128 Padua, Italy; (C.C.); (G.D.); (C.D.L.)
- Correspondence:
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15
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Chen PY, Qin L, Li G, Wang Z, Dahlman JE, Malagon-Lopez J, Gujja S, Cilfone NA, Kauffman KJ, Sun L, Sun H, Zhang X, Aryal B, Canfran-Duque A, Liu R, Kusters P, Sehgal A, Jiao Y, Anderson DG, Gulcher J, Fernandez-Hernando C, Lutgens E, Schwartz MA, Pober JS, Chittenden TW, Tellides G, Simons M. Endothelial TGF-β signalling drives vascular inflammation and atherosclerosis. Nat Metab 2019; 1:912-926. [PMID: 31572976 PMCID: PMC6767930 DOI: 10.1038/s42255-019-0102-3] [Citation(s) in RCA: 150] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Atherosclerosis is a progressive vascular disease triggered by interplay between abnormal shear stress and endothelial lipid retention. A combination of these and, potentially, other factors leads to a chronic inflammatory response in the vessel wall, which is thought to be responsible for disease progression characterized by a buildup of atherosclerotic plaques. Yet molecular events responsible for maintenance of plaque inflammation and plaque growth have not been fully defined. Here we show that endothelial TGFβ signaling is one of the primary drivers of atherosclerosis-associated vascular inflammation. Inhibition of endothelial TGFβ signaling in hyperlipidemic mice reduces vessel wall inflammation and vascular permeability and leads to arrest of disease progression and regression of established lesions. These pro-inflammatory effects of endothelial TGFβ signaling are in stark contrast with its effects in other cell types and identify it as an important driver of atherosclerotic plaque growth and show the potential of cell-type specific therapeutic intervention aimed at control of this disease.
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Affiliation(s)
- Pei-Yu Chen
- Yale Cardiovascular Research Center, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT, USA
| | - Lingfeng Qin
- Department of Surgery, Yale University School of Medicine, New Haven, CT, USA
| | - Guangxin Li
- Department of Surgery, Yale University School of Medicine, New Haven, CT, USA
- Department of Vascular Surgery, The First Hospital of China Medical University, Shenyang, China
| | - Zheng Wang
- School of Basic Medicine, Qingdao University, Shandong, China
| | - James E Dahlman
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, USA
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA, USA
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, GA, USA
| | - Jose Malagon-Lopez
- Computational Statistics and Bioinformatics Group, Advanced Artificial Intelligence Research Laboratory, WuXi NextCODE, Cambridge, MA, USA
- Complex Biological Systems Alliance, Medford, MA, USA
| | - Sharvari Gujja
- Computational Statistics and Bioinformatics Group, Advanced Artificial Intelligence Research Laboratory, WuXi NextCODE, Cambridge, MA, USA
- Complex Biological Systems Alliance, Medford, MA, USA
| | - Nicholas A Cilfone
- Computational Statistics and Bioinformatics Group, Advanced Artificial Intelligence Research Laboratory, WuXi NextCODE, Cambridge, MA, USA
- Complex Biological Systems Alliance, Medford, MA, USA
| | - Kevin J Kauffman
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Lele Sun
- Genomics Laboratory, WuXi NextCODE, Shanghai, China
| | - Hongye Sun
- Genomics Laboratory, WuXi NextCODE, Shanghai, China
| | - Xinbo Zhang
- Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, CT, USA
| | - Binod Aryal
- Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, CT, USA
| | - Alberto Canfran-Duque
- Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, CT, USA
| | - Rebecca Liu
- Department of Immunobiology, Yale School of Medicine, New Haven, CT, USA
| | - Pascal Kusters
- Department of Medical Biochemistry, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands
| | - Alfica Sehgal
- Alnylam Pharmaceuticals Inc., Cambridge, MA, USA
- CAMP4 Therapeutics, Cambridge, MA, USA
| | - Yang Jiao
- Department of Surgery, Yale University School of Medicine, New Haven, CT, USA
| | - Daniel G Anderson
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, USA
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA, USA
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | | | | | - Esther Lutgens
- Department of Medical Biochemistry, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands
- Institute for Cardiovascular Prevention, Ludwig Maximilian's University, Munich, Germany
| | - Martin A Schwartz
- Yale Cardiovascular Research Center, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT, USA
| | - Jordan S Pober
- Department of Immunobiology, Yale School of Medicine, New Haven, CT, USA
| | - Thomas W Chittenden
- Computational Statistics and Bioinformatics Group, Advanced Artificial Intelligence Research Laboratory, WuXi NextCODE, Cambridge, MA, USA
- Complex Biological Systems Alliance, Medford, MA, USA
- Division of Genetics and Genomics, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - George Tellides
- Department of Surgery, Yale University School of Medicine, New Haven, CT, USA
| | - Michael Simons
- Yale Cardiovascular Research Center, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT, USA.
- Department of Cell Biology, Yale University School of Medicine, New Haven, CT, USA.
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16
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Katayama M, Ota K, Nagi-Miura N, Ohno N, Yabuta N, Nojima H, Kumanogoh A, Hirano T. Ficolin-1 is a promising therapeutic target for autoimmune diseases. Int Immunol 2019; 31:23-32. [PMID: 30169661 PMCID: PMC6364620 DOI: 10.1093/intimm/dxy056] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Accepted: 08/27/2018] [Indexed: 01/29/2023] Open
Abstract
Previously, we reported that mRNA expression of ficolin-1 (FCN1), a component of the complement lectin pathway, is elevated in peripheral blood mononuclear cells of patients with vasculitis syndrome, and that FCN1-positive cells infiltrate into inflamed regions in patient specimens. In addition, we reported that the serum FCN1 concentration is elevated in patients with Kawasaki disease (KD), a pediatric vasculitis, but dramatically decreases after intravenous immunoglobulin (IVIG) treatment. Furthermore, we showed that FCN1 binds to IgG1 in a pull-down assay. These results suggested that removal of FCN1 may be a therapeutic mechanism of IVIG. In this study, we prepared anti-FCN1 monoclonal antibody (mAb) and examined its therapeutic potential in mice treated with Candida albicans water-soluble fraction (CAWS), which induces KD-like vasculitis in the coronary artery. Indeed, treatment with anti-FCN1 mAb decreased the histological score of vasculitis (P = 0.03). To investigate the role of FCN1, we assessed blood samples of patients with various autoimmune diseases and demonstrated that serum levels of FCN1 were elevated not only in patients with vasculitis, but also in those with rheumatoid arthritis. Additionally, FCN1-targeted treatment of a mouse model of arthritis [collagen antibody-induced arthritis (CAIA)] revealed that administration of anti-FCN1 mAb ameliorated symptoms of arthritis (P < 0.01). These results suggest that FCN1 is involved in the pathogenesis of autoimmune diseases, and that targeting FCN1 represents a promising strategy for treating these diseases.
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Affiliation(s)
- Michihito Katayama
- Department of Respiratory Medicine and Clinical Immunology, Graduate School of Medicine, Osaka University, Yamadaoka, Suita, Osaka, Japan
| | - Kaori Ota
- Department of Molecular Genetics, Research Institute for Microbial Diseases, Osaka University, Yamadaoka, Suita, Osaka, Japan
| | - Noriko Nagi-Miura
- Center for the Advancement of Pharmaceutical Education, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Horinouchi, Hachioji, Tokyo, Japan
| | - Naohito Ohno
- Laboratory for Immunopharmacology of Microbial Products, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Horinouchi, Hachioji, Tokyo, Japan
| | - Norikazu Yabuta
- Department of Molecular Genetics, Research Institute for Microbial Diseases, Osaka University, Yamadaoka, Suita, Osaka, Japan
| | - Hiroshi Nojima
- Department of Molecular Genetics, Research Institute for Microbial Diseases, Osaka University, Yamadaoka, Suita, Osaka, Japan
| | - Atsushi Kumanogoh
- Department of Respiratory Medicine and Clinical Immunology, Graduate School of Medicine, Osaka University, Yamadaoka, Suita, Osaka, Japan
| | - Toru Hirano
- Department of Respiratory Medicine and Clinical Immunology, Graduate School of Medicine, Osaka University, Yamadaoka, Suita, Osaka, Japan
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17
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Håversen L, Sundelin JP, Mardinoglu A, Rutberg M, Ståhlman M, Wilhelmsson U, Hultén LM, Pekny M, Fogelstrand P, Bentzon JF, Levin M, Borén J. Vimentin deficiency in macrophages induces increased oxidative stress and vascular inflammation but attenuates atherosclerosis in mice. Sci Rep 2018; 8:16973. [PMID: 30451917 PMCID: PMC6242955 DOI: 10.1038/s41598-018-34659-2] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Accepted: 09/27/2018] [Indexed: 12/14/2022] Open
Abstract
The aim was to clarify the role of vimentin, an intermediate filament protein abundantly expressed in activated macrophages and foam cells, in macrophages during atherogenesis. Global gene expression, lipid uptake, ROS, and inflammation were analyzed in bone-marrow derived macrophages from vimentin-deficient (Vim-/-) and wild-type (Vim+/+) mice. Atherosclerosis was induced in Ldlr-/- mice transplanted with Vim-/- and Vim+/+ bone marrow, and in Vim-/- and Vim+/+ mice injected with a PCSK9 gain-of-function virus. The mice were fed an atherogenic diet for 12-15 weeks. We observed impaired uptake of native LDL but increased uptake of oxLDL in Vim-/- macrophages. FACS analysis revealed increased surface expression of the scavenger receptor CD36 on Vim-/- macrophages. Vim-/- macrophages also displayed increased markers of oxidative stress, activity of the transcription factor NF-κB, secretion of proinflammatory cytokines and GLUT1-mediated glucose uptake. Vim-/- mice displayed decreased atherogenesis despite increased vascular inflammation and increased CD36 expression on macrophages in two mouse models of atherosclerosis. We demonstrate that vimentin has a strong suppressive effect on oxidative stress and that Vim-/- mice display increased vascular inflammation with increased CD36 expression on macrophages despite decreased subendothelial lipid accumulation. Thus, vimentin has a key role in regulating inflammation in macrophages during atherogenesis.
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Affiliation(s)
- Liliana Håversen
- Department of Molecular and Clinical Medicine/Wallenberg Laboratory, University of Gothenburg, and Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Jeanna Perman Sundelin
- Strategic planning and operations, Cardiovascular and metabolic diseases, IMED Biotech Unit, AstraZeneca, Gothenburg, Sweden
| | - Adil Mardinoglu
- Science for Life Laboratory, KTH - Royal Institute of Technology, Stockholm, Sweden
- Centre for Host-Microbiome Interactions, Dental Institute, King's College London, London, SE1 9RT, United Kingdom
| | - Mikael Rutberg
- Department of Molecular and Clinical Medicine/Wallenberg Laboratory, University of Gothenburg, and Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Marcus Ståhlman
- Department of Molecular and Clinical Medicine/Wallenberg Laboratory, University of Gothenburg, and Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Ulrika Wilhelmsson
- Department of Clinical Neuroscience/Center for Brain Repair, University of Gothenburg, Gothenburg, Sweden
| | - Lillemor Mattsson Hultén
- Department of Molecular and Clinical Medicine/Wallenberg Laboratory, University of Gothenburg, and Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Milos Pekny
- Department of Clinical Neuroscience/Center for Brain Repair, University of Gothenburg, Gothenburg, Sweden
| | - Per Fogelstrand
- Department of Molecular and Clinical Medicine/Wallenberg Laboratory, University of Gothenburg, and Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Jacob Fog Bentzon
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark, and Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Madrid, Spain
| | - Malin Levin
- Department of Molecular and Clinical Medicine/Wallenberg Laboratory, University of Gothenburg, and Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Jan Borén
- Department of Molecular and Clinical Medicine/Wallenberg Laboratory, University of Gothenburg, and Sahlgrenska University Hospital, Gothenburg, Sweden.
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18
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Sharma AK, Charles EJ, Zhao Y, Narahari AK, Baderdinni PK, Good ME, Lorenz UM, Kron IL, Bayliss DA, Ravichandran KS, Isakson BE, Laubach VE. Pannexin-1 channels on endothelial cells mediate vascular inflammation during lung ischemia-reperfusion injury. Am J Physiol Lung Cell Mol Physiol 2018; 315:L301-L312. [PMID: 29745255 PMCID: PMC6139659 DOI: 10.1152/ajplung.00004.2018] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Revised: 04/17/2018] [Accepted: 05/02/2018] [Indexed: 12/31/2022] Open
Abstract
Ischemia-reperfusion (I/R) injury (IRI), which involves inflammation, vascular permeability, and edema, remains a major challenge after lung transplantation. Pannexin-1 (Panx1) channels modulate cellular ATP release during inflammation. This study tests the hypothesis that endothelial Panx1 is a key mediator of vascular inflammation and edema after I/R and that IRI can be blocked by Panx1 antagonism. A murine hilar ligation model of IRI was used whereby left lungs underwent 1 h of ischemia and 2 h of reperfusion. Treatment of wild-type mice with Panx1 inhibitors (carbenoxolone or probenecid) significantly attenuated I/R-induced pulmonary dysfunction, edema, cytokine production, and neutrophil infiltration versus vehicle-treated mice. In addition, VE-Cad-CreERT2+/Panx1fl/fl mice (tamoxifen-inducible deletion of Panx1 in vascular endothelium) treated with tamoxifen were significantly protected from IRI (reduced dysfunction, endothelial permeability, edema, proinflammatory cytokines, and neutrophil infiltration) versus vehicle-treated mice. Furthermore, extracellular ATP levels in bronchoalveolar lavage fluid is Panx1-mediated after I/R as it was markedly attenuated by Panx1 antagonism in wild-type mice and by endothelial-specific Panx1 deficiency. Panx1 gene expression in lungs after I/R was also significantly elevated compared with sham. In vitro experiments demonstrated that TNF-α and/or hypoxia-reoxygenation induced ATP release from lung microvascular endothelial cells, which was attenuated by Panx1 inhibitors. This study is the first, to our knowledge, to demonstrate that endothelial Panx1 plays a key role in mediating vascular permeability, inflammation, edema, leukocyte infiltration, and lung dysfunction after I/R. Pharmacological antagonism of Panx1 activity may be a novel therapeutic strategy to prevent IRI and primary graft dysfunction after lung transplantation.
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Affiliation(s)
- Ashish K Sharma
- Department of Surgery, University of Virginia School of Medicine , Charlottesville, Virginia
| | - Eric J Charles
- Department of Surgery, University of Virginia School of Medicine , Charlottesville, Virginia
| | - Yunge Zhao
- Department of Surgery, University of Virginia School of Medicine , Charlottesville, Virginia
| | - Adishesh K Narahari
- Department of Pharmacology, University of Virginia School of Medicine , Charlottesville, Virginia
| | - Pranav K Baderdinni
- Department of Pharmacology, University of Virginia School of Medicine , Charlottesville, Virginia
| | - Miranda E Good
- Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine , Charlottesville, Virginia
| | - Ulrike M Lorenz
- Department of Microbiology, Immunology, and Cancer, University of Virginia School of Medicine , Charlottesville, Virginia
| | - Irving L Kron
- Department of Surgery, University of Virginia School of Medicine , Charlottesville, Virginia
| | - Douglas A Bayliss
- Department of Pharmacology, University of Virginia School of Medicine , Charlottesville, Virginia
| | - Kodi S Ravichandran
- Department of Microbiology, Immunology, and Cancer, University of Virginia School of Medicine , Charlottesville, Virginia
| | - Brant E Isakson
- Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine , Charlottesville, Virginia
| | - Victor E Laubach
- Department of Surgery, University of Virginia School of Medicine , Charlottesville, Virginia
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19
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Shirai R, Sato K, Yamashita T, Yamaguchi M, Okano T, Watanabe-Kominato K, Watanabe R, Matsuyama TA, Ishibashi-Ueda H, Koba S, Kobayashi Y, Hirano T, Watanabe T. Neopterin Counters Vascular Inflammation and Atherosclerosis. J Am Heart Assoc 2018; 7:e007359. [PMID: 29420219 PMCID: PMC5850243 DOI: 10.1161/jaha.117.007359] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Accepted: 12/11/2017] [Indexed: 12/15/2022]
Abstract
BACKGROUND Neopterin, a metabolite of GTP, is produced by activated macrophages and is abundantly expressed within atherosclerotic lesions in human aorta and carotid and coronary arteries. We aimed to clarify the influence of neopterin on both vascular inflammation and atherosclerosis, as neither effect had been fully assessed. METHODS AND RESULTS We investigated neopterin expression in coronary artery lesions and plasma from patients with coronary artery disease. We assessed the atheroprotective effects of neopterin in vitro using human aortic endothelial cells, human monocyte-derived macrophages, and human aortic smooth muscle cells. In vivo experiments included a study of aortic lesions in apolipoprotein E-deficient mice. Neopterin expression in coronary artery lesions and plasma was markedly increased in patients with versus without coronary artery disease. In human aortic endothelial cells, neopterin reduced proliferation and TNF-α (tumor necrosis factor α)-induced upregulation of MCP-1 (monocyte chemotactic protein 1), ICAM-1 (intercellular adhesion molecule 1), and VCAM-1 (vascular cell adhesion molecule 1). Neopterin attenuated TNF-α-induced monocyte adhesion to human aortic endothelial cells and the inflammatory macrophage phenotype via NF-κB (nuclear factor-κB) downregulation. Neopterin suppressed oxidized low-density lipoprotein-induced foam cell formation associated with CD36 downregulation and upregulation of ATP-binding cassette transporters A1 and G1 in human monocyte-derived macrophages. In human aortic smooth muscle cells, neopterin suppressed angiotensin II-induced migration and proliferation via c-Src/Raf-1/ERK1/2 downregulation without inducing apoptosis. Exogenous neopterin administration and endogenous neopterin attenuation with its neutralizing antibody for 4 weeks retarded and promoted, respectively, the development of aortic atherosclerotic lesions in apolipoprotein E-deficient mice. CONCLUSIONS Our results indicate that neopterin prevents both vascular inflammation and atherosclerosis and may be induced to counteract the progression of atherosclerotic lesions. Consequently, neopterin could be of use as a novel therapeutic target for atherosclerotic cardiovascular diseases.
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MESH Headings
- Adult
- Aged
- Aged, 80 and over
- Animals
- Aortic Diseases/metabolism
- Aortic Diseases/pathology
- Aortic Diseases/prevention & control
- Apoptosis/drug effects
- Atherosclerosis/metabolism
- Atherosclerosis/pathology
- Atherosclerosis/prevention & control
- Cell Adhesion
- Cell Movement
- Cell Proliferation
- Coculture Techniques
- Coronary Artery Disease/metabolism
- Coronary Artery Disease/pathology
- Coronary Artery Disease/prevention & control
- Cytokines/metabolism
- Disease Models, Animal
- Endothelial Cells/metabolism
- Endothelial Cells/pathology
- Female
- Foam Cells/metabolism
- Foam Cells/pathology
- Humans
- Inflammation Mediators/metabolism
- Male
- Mice, Inbred BALB C
- Mice, Inbred C57BL
- Mice, Knockout, ApoE
- Middle Aged
- Muscle, Smooth, Vascular/metabolism
- Muscle, Smooth, Vascular/pathology
- Myocytes, Smooth Muscle/metabolism
- Myocytes, Smooth Muscle/pathology
- Neopterin/metabolism
- Plaque, Atherosclerotic
- Signal Transduction
- THP-1 Cells
- Vasculitis/metabolism
- Vasculitis/pathology
- Vasculitis/prevention & control
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Affiliation(s)
- Remina Shirai
- Laboratory of Cardiovascular Medicine, Tokyo University of Pharmacy and Life Sciences, Tokyo, Japan
| | - Kengo Sato
- Laboratory of Cardiovascular Medicine, Tokyo University of Pharmacy and Life Sciences, Tokyo, Japan
| | - Tomoyuki Yamashita
- Laboratory of Cardiovascular Medicine, Tokyo University of Pharmacy and Life Sciences, Tokyo, Japan
| | - Maho Yamaguchi
- Laboratory of Cardiovascular Medicine, Tokyo University of Pharmacy and Life Sciences, Tokyo, Japan
| | - Taisuke Okano
- Laboratory of Cardiovascular Medicine, Tokyo University of Pharmacy and Life Sciences, Tokyo, Japan
| | - Kaho Watanabe-Kominato
- Laboratory of Cardiovascular Medicine, Tokyo University of Pharmacy and Life Sciences, Tokyo, Japan
| | - Rena Watanabe
- Laboratory of Cardiovascular Medicine, Tokyo University of Pharmacy and Life Sciences, Tokyo, Japan
| | - Taka-Aki Matsuyama
- Department of Pathology, National Cerebral and Cardiovascular Center, Osaka, Japan
| | | | - Shinji Koba
- Division of Cardiology, Department of Medicine, Showa University School of Medicine, Tokyo, Japan
| | - Youichi Kobayashi
- Division of Cardiology, Department of Medicine, Showa University School of Medicine, Tokyo, Japan
| | - Tsutomu Hirano
- Division of Diabetes, Metabolism, and Endocrinology, Showa University School of Medicine, Tokyo, Japan
| | - Takuya Watanabe
- Laboratory of Cardiovascular Medicine, Tokyo University of Pharmacy and Life Sciences, Tokyo, Japan
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20
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Choi ES, Yoon JJ, Han BH, Jeong DH, Lee YJ, Kang DG, Lee HS. Ligustilide attenuates vascular inflammation and activates Nrf2/HO-1 induction and, NO synthesis in HUVECs. Phytomedicine 2018; 38:12-23. [PMID: 29425644 DOI: 10.1016/j.phymed.2017.09.022] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2017] [Revised: 06/20/2017] [Accepted: 09/30/2017] [Indexed: 06/08/2023]
Abstract
BACKGROUND Ligustilide is a bioactive phthalide derivative isolated from Cnidii Rhizoma (Cnidium officinale, rhizome) and Angelicae Gigantis Radix (Angelica gigas Nakai, root) which are both medicinal herbs used to treat circulatory disorders. Vascular endothelium is a central spot in developing cardiovascular diseases and chronic vascular inflammation might result in atherosclerosis development. PURPOSE We previously found out that a traditional herbal formula, Samul-Tang (Si-Wu-Tang, containing Cnidii Rhizoma and Angelicae Gigantis Radix), attenuated vascular inflammation in human umbilical vein endothelial cells (HUVECs). However, which compound was responsible for vascular protective action remained unclear. Here, we investigated vascular protective potential of an isolated single compound, (Z)-ligustilide. METHODS MTT assay, western blotting, immunofluorescence, electrophoretic mobility shift assay was performed. BCECF-AM, CM-H2DCFDA, DAF-FM diacetate were used as a fluorescent indicator. RESULTS Ligustilide suppressed HL-60 monocyte adhesion and CAMs (ICAM-1, VCAM-1, E-selectin) expression in HUVECs. Ligustilide significantly inhibited TNF-α-increased production of ROS and activated NF-κB signaling pathway. Also, ligustilide treated HUVECs exhibited significant HO-1 induction via Nrf2 nuclear translocation and endothelial NO synthesis. CONCLUSION Present study demonstrates that ligustilde attenuates vascular inflammation and activate defense system of endothelial cell. Ligustilide is a bioactive compound which might prevent cardiovascular complications such as thrombosis or atherosclerosis.
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Affiliation(s)
- Eun Sik Choi
- College of Oriental Medicine and Professional Graduate School of Oriental Medicine, Wonkwang University, 460 Iksandae-ro, Jeonbuk 54538, Republic of Korea; Hanbang Cardio-Renal Syndrome Research Center, Wonkwang University, 460 Iksandae-ro, Jeonbuk 54538, Republic of Korea
| | - Jung Joo Yoon
- College of Oriental Medicine and Professional Graduate School of Oriental Medicine, Wonkwang University, 460 Iksandae-ro, Jeonbuk 54538, Republic of Korea; Hanbang Cardio-Renal Syndrome Research Center, Wonkwang University, 460 Iksandae-ro, Jeonbuk 54538, Republic of Korea
| | - Byung Hyuk Han
- College of Oriental Medicine and Professional Graduate School of Oriental Medicine, Wonkwang University, 460 Iksandae-ro, Jeonbuk 54538, Republic of Korea; Hanbang Cardio-Renal Syndrome Research Center, Wonkwang University, 460 Iksandae-ro, Jeonbuk 54538, Republic of Korea
| | - Da Hye Jeong
- College of Oriental Medicine and Professional Graduate School of Oriental Medicine, Wonkwang University, 460 Iksandae-ro, Jeonbuk 54538, Republic of Korea; Hanbang Cardio-Renal Syndrome Research Center, Wonkwang University, 460 Iksandae-ro, Jeonbuk 54538, Republic of Korea
| | - Yun Jung Lee
- College of Oriental Medicine and Professional Graduate School of Oriental Medicine, Wonkwang University, 460 Iksandae-ro, Jeonbuk 54538, Republic of Korea; Hanbang Cardio-Renal Syndrome Research Center, Wonkwang University, 460 Iksandae-ro, Jeonbuk 54538, Republic of Korea
| | - Dae Gill Kang
- College of Oriental Medicine and Professional Graduate School of Oriental Medicine, Wonkwang University, 460 Iksandae-ro, Jeonbuk 54538, Republic of Korea; Hanbang Cardio-Renal Syndrome Research Center, Wonkwang University, 460 Iksandae-ro, Jeonbuk 54538, Republic of Korea.
| | - Ho Sub Lee
- College of Oriental Medicine and Professional Graduate School of Oriental Medicine, Wonkwang University, 460 Iksandae-ro, Jeonbuk 54538, Republic of Korea; Hanbang Cardio-Renal Syndrome Research Center, Wonkwang University, 460 Iksandae-ro, Jeonbuk 54538, Republic of Korea.
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21
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Mao JY, Sun JT, Yang K, Shen WF, Lu L, Zhang RY, Tong X, Liu Y. Serum amyloid A enrichment impairs the anti-inflammatory ability of HDL from diabetic nephropathy patients. J Diabetes Complications 2017; 31:1538-1543. [PMID: 28760652 DOI: 10.1016/j.jdiacomp.2017.07.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Revised: 07/06/2017] [Accepted: 07/07/2017] [Indexed: 01/13/2023]
Abstract
AIMS Impaired anti-inflammatory ability of high-density lipoprotein (HDL) has been demonstrated in patients with type-2 diabetes mellitus (T2DM). However, whether HDL from patients with diabetic nephropathy (DN) suffers additional damage remains unknown. This study compared the anti-inflammatory capacities of HDL from healthy controls, T2DM patients with normal renal function, and T2DM patients with DN. MATERIALS AND METHODS HDL was isolated from healthy controls (n=33) and T2DM patients with normal renal function (n=21), chronic kidney disease (CKD) (n=27), and end-stage renal disease (ESRD) (n=27). Human peripheral blood mononuclear cells (PBMCs) from healthy volunteers were pretreated with HDL (100μg/mL) for 1h, then incubated with lipopolysaccharide (LPS) (50ng/mL) for 24h. The anti-inflammatory ability of HDL was measured as the secretion of TNF-α in LPS-activated monocytes. RESULTS The anti-inflammatory ability of HDL was gradually impaired as kidney function declined. Serum amyloid A (SAA) concentration in HDLDN significantly increased and was positively correlated with the impaired anti-inflammatory ability of HDL (Pearson r=0.315, P=0.006). Furthermore, HDL supplemented with SAA significantly increased TNF-α release from PBMCs compared with that from control HDL. CONCLUSIONS These findings identified an impaired anti-inflammatory capacity of HDL from DN patients, which might be attributable to SAA enrichment.
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MESH Headings
- Adult
- Aged
- Cells, Cultured
- China/epidemiology
- Cross-Sectional Studies
- Diabetes Mellitus, Type 2/complications
- Diabetic Angiopathies/epidemiology
- Diabetic Angiopathies/immunology
- Diabetic Angiopathies/metabolism
- Diabetic Angiopathies/pathology
- Diabetic Nephropathies/immunology
- Diabetic Nephropathies/metabolism
- Diabetic Nephropathies/pathology
- Diabetic Nephropathies/physiopathology
- Female
- Hospitals, University
- Humans
- Kidney/physiopathology
- Kidney Failure, Chronic/complications
- Kidney Failure, Chronic/immunology
- Kidney Failure, Chronic/metabolism
- Kidney Failure, Chronic/pathology
- Leukocytes, Mononuclear/drug effects
- Leukocytes, Mononuclear/immunology
- Leukocytes, Mononuclear/metabolism
- Leukocytes, Mononuclear/pathology
- Lipopolysaccharides/toxicity
- Lipoproteins, HDL/blood
- Lipoproteins, HDL/isolation & purification
- Lipoproteins, HDL/metabolism
- Male
- Middle Aged
- Outpatient Clinics, Hospital
- Renal Insufficiency, Chronic/complications
- Renal Insufficiency, Chronic/immunology
- Renal Insufficiency, Chronic/metabolism
- Renal Insufficiency, Chronic/pathology
- Risk Factors
- Serum Amyloid A Protein/analysis
- Serum Amyloid A Protein/metabolism
- Severity of Illness Index
- Vasculitis/complications
- Vasculitis/immunology
- Vasculitis/metabolism
- Vasculitis/pathology
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Affiliation(s)
- Jing Yan Mao
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory for Tumor Microenvironment and Inflammation, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Jia Teng Sun
- Department of Cardiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Ke Yang
- Institute of Cardiovascular Disease, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Wei Feng Shen
- Department of Cardiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China; Institute of Cardiovascular Disease, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Lin Lu
- Department of Cardiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Rui Yan Zhang
- Department of Cardiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Xuemei Tong
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory for Tumor Microenvironment and Inflammation, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China.
| | - Yan Liu
- Department of Cardiology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China.
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22
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Milan AM, Pundir S, Pileggi CA, Markworth JF, Lewandowski PA, Cameron-Smith D. Comparisons of the Postprandial Inflammatory and Endotoxaemic Responses to Mixed Meals in Young and Older Individuals: A Randomised Trial. Nutrients 2017; 9:E354. [PMID: 28368340 PMCID: PMC5409693 DOI: 10.3390/nu9040354] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Revised: 03/29/2017] [Accepted: 03/29/2017] [Indexed: 02/06/2023] Open
Abstract
Postprandial inflammation and endotoxaemia are determinants of cardiovascular and metabolic disease risk which are amplified by high fat meals. We aimed to examine the determinants of postprandial inflammation and endotoxaemia in older and younger adults following a high fat mixed meal. In a randomised cross-over trial, healthy participants aged 20-25 and 60-75 years (n = 15/group) consumed a high-fat breakfast and a low-fat breakfast. Plasma taken at baseline and post-meal for 5 h was analysed for circulating endotoxin, cytokines (monocyte chemotactic protein-1 (MCP-1), interleukin (IL)-1β, IL-6, and tumour necrosis factor-alpha (TNF-α)), lipopolysaccharide binding protein (LBP), and inflammatory gene expression in peripheral blood mononuclear cells (PBMC). Older subjects had lower baseline PBMC expression of Glutathione peroxidase 1 (GPX-1) but greater insulin-like growth factor-binding protein 3 (IGFBP3) and circulating MCP-1 compared to younger subjects. After either meal, there were no age differences in plasma, chylomicron endotoxin, or plasma LBP concentrations, nor in inflammatory cytokine gene and protein expression (MCP-1, IL-1β, and TNF-α). Unlike younger participants, the older group had decreased superoxide dismutase (SOD)-2 expression after the meals. After a high-fat meal, older adults have no increased inflammatory or endotoxin response, but an altered oxidative stress gene response compared with younger adults. Healthy older adults, without apparent metabolic dysfunction, have a comparable postprandial inflammatory and endotoxaemia response to younger adults.
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Affiliation(s)
- Amber M Milan
- Liggins Institute, University of Auckland, Private Bag 92019, Auckland 1023, New Zealand.
| | - Shikha Pundir
- Liggins Institute, University of Auckland, Private Bag 92019, Auckland 1023, New Zealand.
| | - Chantal A Pileggi
- Liggins Institute, University of Auckland, Private Bag 92019, Auckland 1023, New Zealand.
| | - James F Markworth
- Liggins Institute, University of Auckland, Private Bag 92019, Auckland 1023, New Zealand.
| | - Paul A Lewandowski
- School of Medicine, Deakin University, 75 Pigdons Road, Warun Ponds, VIC 3216, Australia.
| | - David Cameron-Smith
- Liggins Institute, University of Auckland, Private Bag 92019, Auckland 1023, New Zealand.
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Guiraut C, Cauchon N, Lepage M, Sébire G. Perinatal Arterial Ischemic Stroke Is Associated to Materno-Fetal Immune Activation and Intracranial Arteritis. Int J Mol Sci 2016; 17:ijms17121980. [PMID: 27898024 PMCID: PMC5187780 DOI: 10.3390/ijms17121980] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Revised: 11/14/2016] [Accepted: 11/21/2016] [Indexed: 12/22/2022] Open
Abstract
The medium-size intra-cranial arteries arising from the carotid bifurcation are prone to perinatal arterial ischemic strokes (PAIS). PAIS’ physiopathology needs to be better understood to develop preventive and therapeutic interventions that are currently missing. We hypothesized that materno-fetal inflammation leads to a vasculitis affecting selectively the carotidian tree and promoting a focal thrombosis and subsequent stroke. Dams were injected with saline or lipopolysaccharide (LPS) from Escherichia coli. A prothrombotic stress was applied on LPS-exposed vs. saline (S)-exposed middle cerebral arteries (MCA). Immunolabeling detected the inflammatory markers of interest. In S-exposed newborn pups, a constitutive higher density of macrophages combined to higher expressions of tumor necrosis factor-α (TNF-α), and interleukin 1β (IL-1β) was observed within the wall of intra- vs. extra-cranial cervicocephalic arteries. LPS-induced maternal and placental inflammatory responses mediated by IL-1β, TNF-α and monocyte chemotactic protein 1 (MCP-1) were associated with: (i) increased density of pro-inflammatory macrophages (M1 phenotype); and (ii) pro-inflammatory orientation of the IL-1 system (IL-1β/IL-1 receptor antagonist (IL-1Ra) ratio) within the wall of LPS-, vs. S-exposed, intra-cranial arteries susceptible to PAIS. LPS plus photothrombosis, but not sole photothrombosis, triggered ischemic strokes and subsequent motor impairments. Based on these preclinical results, the combination of pro-thrombotic stress and selective intra-cranial arteritis arising from end gestational maternal immune activation seem to play a role in the pathophysiology of human PAIS.
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Affiliation(s)
- Clémence Guiraut
- Département de Pédiatrie, Université de Sherbrooke, Sherbrooke, QC J1H 5N4, Canada.
| | - Nicole Cauchon
- Département de Médecine Nucléaire et Radiobiologie, Université de Sherbrooke, Sherbrooke, QC J1H 5N4, Canada.
| | - Martin Lepage
- Département de Médecine Nucléaire et Radiobiologie, Université de Sherbrooke, Sherbrooke, QC J1H 5N4, Canada.
| | - Guillaume Sébire
- Département de Pédiatrie, Université de Sherbrooke, Sherbrooke, QC J1H 5N4, Canada.
- Child Neurology Division, Department of Pediatrics, McGill University, Montréal, QC H4A 3J1, Canada.
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24
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Xu Y, Zhu J, Hu X, Wang C, Lu D, Gong C, Yang J, Zong L. CLIC1 Inhibition Attenuates Vascular Inflammation, Oxidative Stress, and Endothelial Injury. PLoS One 2016; 11:e0166790. [PMID: 27861612 PMCID: PMC5115793 DOI: 10.1371/journal.pone.0166790] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2016] [Accepted: 11/03/2016] [Indexed: 01/26/2023] Open
Abstract
Endothelial dysfunction, which includes endothelial oxidative damage and vascular inflammation, is a key initiating step in the pathogenesis of atherosclerosis (AS) and an independent risk factor for this disorder. Intracellular chloride channel 1 (CLIC1), a novel metamorphic protein, acts as a sensor of cell oxidation and is involved in inflammation. In this study, we hypothesize that CLIC1 plays an important role in AS. Apolipoprotein E-deficient mice were supplied with a normal diet or a high-fat and high-cholesterol diet for 8 weeks. Overexpressed CLIC1 was associated with the accelerated atherosclerotic plaque development, amplified oxidative stress, and in vivo release of inflammatory cytokines. We subsequently examined the underlying molecular mechanisms through in vitro experiments. Treatment of cultured human umbilical vein endothelial cells (HUVECs) with H2O2 induced endothelial oxidative damage and enhanced CLIC1 expression. Suppressing CLIC1 expression through gene knocked-out (CLIC1-/-) or using the specific inhibitor indanyloxyacetic acid-94 (IAA94) reduced ROS production, increased SOD enzyme activity, and significantly decreased MDA level. CLIC1-/- HUVECs exhibited significantly reduced expression of TNF-α and IL-1β as well as ICAM-1 and VCAM-1 at the protein levels. In addition, H2O2 promoted CLIC1 translocation to the cell membrane and insertion into lipid membranes, whereas IAA94 inhibited CLIC1 membrane translocation induced by H2O2. By contrast, the majority of CLIC1 did not aggregate on the cell membrane in normal HUVECs, and this finding is consistent with the changes in cytoplasmic chloride ion concentration. This study demonstrates for the first time that CLIC1 is overexpressed during AS development both in vitro and in vivo and can regulate the accumulation of inflammatory cytokines and production of oxidative stress. Our results also highlight that deregulation of endothelial functions may be associated with the membrane translocation of CLIC1 and active chloride-selective ion channels in endothelial cells.
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Affiliation(s)
- Yingling Xu
- College of Life Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Ji Zhu
- Clinical Laboratory, The Third Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Xiao Hu
- College of Life Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Cui Wang
- College of Life Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Dezhao Lu
- College of Life Science, Zhejiang Chinese Medical University, Hangzhou, China
- * E-mail:
| | - Chenxue Gong
- College of Life Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Jinhuan Yang
- College of Life Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Lei Zong
- College of Life Science, Zhejiang Chinese Medical University, Hangzhou, China
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25
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Slim RM, Song Y, Albassam M, Dethloff LA. Apoptosis and Nitrative Stress Associated with Phosphodiesterase Inhibitor-Induced Mesenteric Vasculitis in Rats. Toxicol Pathol 2016; 31:638-45. [PMID: 14585732 DOI: 10.1080/01926230390241972] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Nitric oxide may play a role in phosphodiesterase (PDE) inhibitor-induced rat mesenteric vasculitis. The present study was conducted to identify cellular sources of iNOS, determine the distribution of nitrotyrosine (NT) residues as a footprint of peroxynitrite (ONOO-) production, and evaluate their association with vascular apoptosis. To dissociate primary events from secondary changes associated with the inflammatory response, rats were given the PDE IV inhibitor CI-1018 orally at 750 mg/kg alone or concurrently with dexamethasone (DEX) intraperitoneally at 1 mg/kg for 4—5 days. Neutrophil (PMN) involvement in apoptosis was investigated in CI-1018 treated rats dosed with rabbit anti-rat PMN serum (APS). iNOS expression, NT residues, and caspase-3 were detected by immuno-histochemistry. Apoptosis was evaluated by TUNEL assay. CI-1018 induced vascular lesions were associated with iNOS expression in endothelial cells and inflammatory infiltrates; NT was evident only in the latter. Caspase-3 and TUNEL-positive staining were prominent only in medial smooth muscle cells (SMC) from CI-1018-treated rats and only when associated with active inflammation. iNOS- and NT-positive inflammatory cells were present in close proximity to SMC with caspase-3 staining. Inflammatory infiltrates were absent in rats given DEX with minimal SMC necrosis and hemorrhage remained. DEX eliminated apoptosis and immunoreactivity associated with caspase-3, iNOS, and NT. APS depletion of PMNs decreased the incidence and severity of vasculitis but failed to abolish completely caspase-3 immunoreactivity. Expression patterns for caspase-3, iNOS, and NT demonstrated that nitrative stress is a prominent feature of PDE inhibitor-induced vasculitis, with a possible role in medial SMC apoptosis. Further, medial SMC apoptosis may not be a primary event, but instead may be secondary to the inflammatory response.
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MESH Headings
- Administration, Oral
- Animals
- Antilymphocyte Serum/immunology
- Antilymphocyte Serum/pharmacology
- Apoptosis/drug effects
- Caspase 3
- Caspases/metabolism
- Dexamethasone/administration & dosage
- Dexamethasone/pharmacology
- Drug Therapy, Combination
- Endothelium, Vascular/drug effects
- Endothelium, Vascular/enzymology
- Endothelium, Vascular/pathology
- Female
- Immunoenzyme Techniques
- In Situ Nick-End Labeling
- Injections, Intraperitoneal
- Mesenteric Arteries/drug effects
- Mesenteric Arteries/metabolism
- Mesenteric Arteries/pathology
- Muscle, Smooth, Vascular/drug effects
- Muscle, Smooth, Vascular/metabolism
- Muscle, Smooth, Vascular/pathology
- Neutrophils/drug effects
- Neutrophils/immunology
- Neutrophils/pathology
- Nitric Oxide Synthase/metabolism
- Nitric Oxide Synthase Type II
- Oxidative Stress/drug effects
- Peroxynitrous Acid/metabolism
- Phosphodiesterase Inhibitors/administration & dosage
- Phosphodiesterase Inhibitors/toxicity
- Rats
- Rats, Wistar
- Tyrosine/analogs & derivatives
- Tyrosine/metabolism
- Vasculitis/chemically induced
- Vasculitis/metabolism
- Vasculitis/pathology
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Affiliation(s)
- Rabih M Slim
- Departments of Drug Safety Evaluation, Pfizer Global Research and Development, Ann Arbor Laboratories, Ann Arbor, Michigan 48105, USA
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26
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Folmsbee SS, Budinger GRS, Bryce PJ, Gottardi CJ. The cardiomyocyte protein αT-catenin contributes to asthma through regulating pulmonary vein inflammation. J Allergy Clin Immunol 2016; 138:123-129.e2. [PMID: 26947180 PMCID: PMC4931945 DOI: 10.1016/j.jaci.2015.11.037] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2015] [Revised: 10/14/2015] [Accepted: 11/20/2015] [Indexed: 10/22/2022]
Abstract
BACKGROUND Recent genome-wide association studies have identified single nucleotide polymorphisms in the gene encoding the protein αT-catenin (CTNNA3) that correlate with both steroid-resistant atopic asthma and asthmatic exacerbations. α-Catenins are important mediators of cell-cell adhesion, and αT-catenin is predominantly expressed in cardiomyocytes. In the lung αT-catenin appears to be exclusively expressed in cardiomyocytes surrounding the pulmonary veins (PVs), but its contribution to atopic asthma remains unknown. OBJECTIVE We sought to understand the role of αT-catenin in asthma pathogenesis. METHODS We used αT-catenin knockout mice and a house dust mite (HDM) extract model of atopic asthma, with assessment by means of forced oscillation, bronchoalveolar lavage, and histologic analysis. RESULTS We found that the genetic loss of αT-catenin in mice largely attenuated HDM-induced airway inflammation and airway hyperresponsiveness to methacholine. Mice lacking αT-catenin that were exposed to HDM extract had reduced PV inflammation, specifically near the large veins surrounded by cardiac cells. The proximity of the airways to PVs correlated with the severity of airway goblet cell metaplasia, suggesting that PVs can influence the inflammatory milieu of adjacent airways. Loss of αT-catenin led to compensatory upregulation of αE-catenin, which itself has a defined anti-inflammatory function. CONCLUSION These data mechanistically support previous clinical and genetic associations between αT-catenin and the development of atopic asthma and suggest that PVs might have an underappreciated role in allergic airway inflammation.
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Affiliation(s)
- Stephen Sai Folmsbee
- Department of Pulmonary and Critical Care Medicine, Northwestern University Feinberg School of Medicine, Chicago, Ill; Driskill Graduate Training Program in Life Sciences, Northwestern University Feinberg School of Medicine, Chicago, Ill
| | - G R Scott Budinger
- Department of Pulmonary and Critical Care Medicine, Northwestern University Feinberg School of Medicine, Chicago, Ill
| | - Paul J Bryce
- Department of Allergy and Immunology, Northwestern University Feinberg School of Medicine, Chicago, Ill
| | - Cara J Gottardi
- Department of Pulmonary and Critical Care Medicine, Northwestern University Feinberg School of Medicine, Chicago, Ill; Department of Cellular and Molecular Biology, Northwestern University Feinberg School of Medicine, Chicago, Ill.
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27
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Ellinger S, Stehle P. Impact of Cocoa Consumption on Inflammation Processes-A Critical Review of Randomized Controlled Trials. Nutrients 2016; 8:nu8060321. [PMID: 27240397 PMCID: PMC4924162 DOI: 10.3390/nu8060321] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2016] [Revised: 05/09/2016] [Accepted: 05/20/2016] [Indexed: 01/08/2023] Open
Abstract
Background: Cocoa flavanols have strong anti-inflammatory properties in vitro. If these also occur in vivo, cocoa consumption may contribute to the prevention or treatment of diseases mediated by chronic inflammation. This critical review judged the evidence for such effects occurring after cocoa consumption. Methods: A literature search in Medline was performed for randomized controlled trials (RCTs) that investigated the effects of cocoa consumption on inflammatory biomarkers. Results: Thirty-three RCTs were included, along with 9 bolus and 24 regular consumption studies. Acute cocoa consumption decreased adhesion molecules and 4-series leukotrienes in serum, nuclear factor κB activation in leukocytes, and the expression of CD62P and CD11b on monocytes and neutrophils. In healthy subjects and in patients with cardiovascular diseases, most regular consumption trials did not find any changes except for a decreased number of endothelial microparticles, but several cellular and humoral inflammation markers decreased in patients suffering from type 2 diabetes and impaired fasting glucose. Conclusions: Little evidence exists that consumption of cocoa-rich food may reduce inflammation, probably by lowering the activation of monocytes and neutrophils. The efficacy seems to depend on the extent of the basal inflammatory burden. Further well-designed RCTs with inflammation as the primary outcome are needed, focusing on specific markers of leukocyte activation and considering endothelial microparticles as marker of vascular inflammation.
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Affiliation(s)
- Sabine Ellinger
- Faculty of Food, Nutrition and Hospitality Sciences Hochschule Niederrhein, University of Applied Sciences, Rheydter Str. 277, Mönchengladbach 41065, Germany.
| | - Peter Stehle
- Department of Nutrition and Food Sciences, Nutritional Physiology, University of Bonn, Endenicher Allee 11-13, Bonn 53115, Germany.
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28
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Zuchtriegel G, Uhl B, Puhr-Westerheide D, Pörnbacher M, Lauber K, Krombach F, Reichel CA. Platelets Guide Leukocytes to Their Sites of Extravasation. PLoS Biol 2016; 14:e1002459. [PMID: 27152726 PMCID: PMC4859536 DOI: 10.1371/journal.pbio.1002459] [Citation(s) in RCA: 132] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Accepted: 04/11/2016] [Indexed: 12/14/2022] Open
Abstract
Effective immune responses require the directed migration of leukocytes from the vasculature to the site of injury or infection. How immune cells “find” their site of extravasation remains largely obscure. Here, we identified a previously unrecognized role of platelets as pathfinders guiding leukocytes to their exit points in the microvasculature: upon onset of inflammation, circulating platelets were found to immediately adhere at distinct sites in venular microvessels enabling these cellular blood components to capture neutrophils and, in turn, inflammatory monocytes via CD40-CD40L-dependent interactions. In this cellular crosstalk, ligation of PSGL-1 by P-selectin leads to ERK1/2 MAPK-dependent conformational changes of leukocyte integrins, which promote the successive extravasation of neutrophils and monocytes to the perivascular tissue. Conversely, blockade of this cellular partnership resulted in misguided, inefficient leukocyte responses. Our experimental data uncover a platelet-directed, spatiotemporally organized, multicellular crosstalk that is essential for effective trafficking of leukocytes to the site of inflammation. This study identifies a previously unanticipated role for platelets as pathfinders, guiding leukocytes to the sites at which they can exit the microvasculature; this process appears to be critical for an effective immune response. White blood cells (leukocytes) are the effector cells of the immune system. The movement (extravasation) of leukocytes from the bloodstream to the surrounding tissue is a prerequisite for proper host defense. Platelets are anucleate cell particles that circulate in the blood and play a fundamental role in hemostasis. Here, we report a previously unrecognized function of platelets as "pathfinders" guiding leukocytes to their site of extravasation. Upon onset of the inflammatory response, platelets were found to immediately adhere to specific sites in the smallest venular microvessels. At these "hot spots", platelets capture intravascularly crawling neutrophils and, in turn, inflammatory monocytes. The cellular crosstalk arising from these interactions leads to conformational changes of distinct adhesion molecules on the surface of leukocytes, subsequently promoting the extravasation of these immune cells to the inflamed tissue. Conversely, blockade of this cellular partnership leads to misguided and inefficient leukocyte responses. Thus, platelet-directed guidance of leukocytes to confined sites of extravasation appears to be a critical step in the recruitment process of immune cells, which might emerge as a promising therapeutic target for the prevention and treatment of inflammatory pathologies.
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Affiliation(s)
- Gabriele Zuchtriegel
- Department of Otorhinolaryngology, Head and Neck Surgery, Klinikum der Universität München, Munich, Germany
- Walter Brendel Centre of Experimental Medicine, Klinikum der Universität München, Munich, Germany
| | - Bernd Uhl
- Walter Brendel Centre of Experimental Medicine, Klinikum der Universität München, Munich, Germany
| | - Daniel Puhr-Westerheide
- Walter Brendel Centre of Experimental Medicine, Klinikum der Universität München, Munich, Germany
| | - Michaela Pörnbacher
- Walter Brendel Centre of Experimental Medicine, Klinikum der Universität München, Munich, Germany
| | - Kirsten Lauber
- Department of Radiation Oncology, Klinikum der Universität München, Munich, Germany
| | - Fritz Krombach
- Walter Brendel Centre of Experimental Medicine, Klinikum der Universität München, Munich, Germany
| | - Christoph Andreas Reichel
- Department of Otorhinolaryngology, Head and Neck Surgery, Klinikum der Universität München, Munich, Germany
- Walter Brendel Centre of Experimental Medicine, Klinikum der Universität München, Munich, Germany
- * E-mail:
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29
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Domingueti CP, Dusse LMS, Carvalho MDG, de Sousa LP, Gomes KB, Fernandes AP. Diabetes mellitus: The linkage between oxidative stress, inflammation, hypercoagulability and vascular complications. J Diabetes Complications 2016; 30:738-45. [PMID: 26781070 DOI: 10.1016/j.jdiacomp.2015.12.018] [Citation(s) in RCA: 402] [Impact Index Per Article: 50.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Revised: 12/15/2015] [Accepted: 12/16/2015] [Indexed: 12/22/2022]
Abstract
BACKGROUND Vascular complications are the leading cause of morbidity and mortality among patients with type 1 and type 2 diabetes mellitus. These vascular abnormalities result of a chronic hyperglycemic state, which leads to an increase in oxidative stress and inflammatory responses. AIM This review addresses the relationships among endothelial dysfunction, hypercoagulability and inflammation and their biomarkers in the development of vascular complications in type 1 and type 2 diabetes. RESULTS Inflammation, endothelial dysfunction, and hypercoagulability are correlated to each other, playing an important role in the development of vascular complications in diabetic patients. Moreover, it has been observed that several endothelial, inflammatory and pro-coagulant biomarkers, such as VWF, IL-6, TNF-α, D-dimer and PAI-1, are increased in diabetic patients who have microvascular and macrovascular complications, including nephropathy or cardiovascular disease. CONCLUSION It is promising the clinical and laboratory use of endothelial, inflammatory and pro-coagulant biomarkers for predicting the risk of cardiovascular and renal complications in diabetic patients and for monitoring these patients.
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MESH Headings
- Animals
- Biomarkers/blood
- Diabetes Mellitus, Type 1/complications
- Diabetes Mellitus, Type 1/immunology
- Diabetes Mellitus, Type 1/metabolism
- Diabetes Mellitus, Type 1/physiopathology
- Diabetes Mellitus, Type 2/complications
- Diabetes Mellitus, Type 2/immunology
- Diabetes Mellitus, Type 2/metabolism
- Diabetes Mellitus, Type 2/physiopathology
- Diabetic Angiopathies/complications
- Diabetic Angiopathies/immunology
- Diabetic Angiopathies/metabolism
- Diabetic Angiopathies/physiopathology
- Endothelium, Vascular/immunology
- Endothelium, Vascular/metabolism
- Endothelium, Vascular/physiopathology
- Humans
- Models, Biological
- Oxidative Stress
- Thrombophilia/complications
- Thrombophilia/immunology
- Thrombophilia/metabolism
- Thrombophilia/physiopathology
- Vasculitis/complications
- Vasculitis/immunology
- Vasculitis/metabolism
- Vasculitis/physiopathology
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Affiliation(s)
- Caroline Pereira Domingueti
- Departamento de Análises Clínicas e Toxicológicas, Faculdade de Farmácia, Universidade Federal de São João Del-Rei, Campus Centro Oeste Dona Lindu, Divinópolis, Minas Gerais, Brazil.
| | - Luci Maria Sant'Ana Dusse
- Departamento de Análises Clínicas e Toxicológicas, Faculdade de Farmácia, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Maria das Graças Carvalho
- Departamento de Análises Clínicas e Toxicológicas, Faculdade de Farmácia, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Lirlândia Pires de Sousa
- Departamento de Análises Clínicas e Toxicológicas, Faculdade de Farmácia, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Karina Braga Gomes
- Departamento de Análises Clínicas e Toxicológicas, Faculdade de Farmácia, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Ana Paula Fernandes
- Departamento de Análises Clínicas e Toxicológicas, Faculdade de Farmácia, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
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Salvarani C, Morris JM, Giannini C, Brown RD, Christianson T, Hunder GG. Imaging Findings of Cerebral Amyloid Angiopathy, Aβ-Related Angiitis (ABRA), and Cerebral Amyloid Angiopathy-Related Inflammation: A Single-Institution 25-Year Experience. Medicine (Baltimore) 2016; 95:e3613. [PMID: 27196463 PMCID: PMC4902405 DOI: 10.1097/md.0000000000003613] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Vascular inflammation is present in a subset of patients with cerebral amyloid angiopathy (CAA) and has a major influence in determining the disease manifestations. Radiological characterization of this subset is particularly important to achieve early recognition and treatment. We conducted this study to investigate the role of imaging in differentiating CAA with and without inflammation. We reviewed neuroimaging findings for 54 patients seen at Mayo Clinic over 25 years with pathological evidence of CAA and with available neuroimaging at the time of diagnosis. Clinical data were also recorded. Patients were grouped into CAA alone (no vascular inflammation), Aβ-related angiitis or ABRA (angiodestructive inflammation), and CAA-related inflammation or CAA-RI (perivascular inflammation). Imaging findings at presentation were compared among patient subgroups. Radiological features supporting a diagnosis of ABRA or CAA-RI were identified. Radiologic findings at diagnosis were available in 27 patients with CAA without inflammation, 22 with ABRA, and 5 with CAA-RI. On MRI, leptomeningeal disease alone or with infiltrative white matter was significantly more frequent at presentation in patients with ABRA or CAA-RI compared with those with CAA (29.6% vs. 3.7%, P = 0.02; and 40.7% vs. 3.7%, P = 0.002, respectively), whereas lobar hemorrhage was more frequent in patients with CAA (62.3% vs. 7.4%, P = 0.0001). Overall, leptomeningeal involvement at presentation was present in 70.4% of patients with ABRA or CAA-RI and in only 7.4% of patients with CAA (P = 0.0001). The sensitivity and specificity of leptomeningeal enhancement to identify patients with ABRA or CAA-RI were 70.4% and 92.6%, respectively, whereas the positive likelihood ratio (LR) was 9.5. The sensitivity and specificity of intracerebral hemorrhage to identify patients with CAA were 62.9% and 92.6%, respectively, whereas the positive LR was 8.5. Microbleeds were found in 70.4% of patients with inflammatory CAA at presentation. In conclusion, leptomeningeal enhancement and lobar hemorrhage at presentation may enable differentiation between CAA with and without inflammation. The identification at initial MRI of diffuse cortical-subcortical microbleeds in elderly patients presenting with infiltrative white matter process or prominent leptomeningeal enhancement is highly suggestive of vascular inflammatory CAA.
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Affiliation(s)
- Carlo Salvarani
- From the Department of Radiology (JMM); Department of Laboratory Medicine and Pathology (CG); Department of Neurology (CS, RDB); Division of Biomedical Statistics and Informatics (TC); and Division of Rheumatology (GGH), Mayo Clinic, Rochester, MN
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31
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Abstract
Chronic wounds are a common complication in patients with diabetes that often lead to amputation. These non-healing wounds are described as being stuck in a persistent inflammatory state characterized by accumulation of pro-inflammatory macrophages, cytokines and proteases. Some medications approved for management of type 2 diabetes have demonstrated anti-inflammatory properties independent of their marketed insulinotropic effects and thus have underappreciated potential to promote wound healing. In this review, the potential for insulin, metformin, specific sulfonylureas, thiazolidinediones, and dipeptidyl peptidase-4 inhibitors to promote healing is evaluated by reviewing human and animal studies on inflammation and wound healing. The available evidence indicates that diabetic medications have potential to prevent wounds from becoming arrested in the inflammatory stage of healing and to promote wound healing by downregulating pro-inflammatory cytokines, upregulating growth factors, lowering matrix metalloproteinases, stimulating angiogenesis, and increasing epithelization. However, no clinical recommendations currently exist on the potential for specific diabetic medications to impact healing of chronic wounds. Thus, we encourage further research that may guide physicians on providing personalized diabetes treatments that achieve glycemic goals while promoting healing in patients with chronic wounds.
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Affiliation(s)
- Jay J Salazar
- Department of Kinesiology and Nutrition, University of Illinois at Chicago, Chicago, IL, USA
| | - William J Ennis
- Department of Surgery, University of Illinois at Chicago, Chicago, IL, USA; Center for Tissue Repair and Regeneration, University of Illinois at Chicago, Chicago, IL, USA
| | - Timothy J Koh
- Department of Kinesiology and Nutrition, University of Illinois at Chicago, Chicago, IL, USA; Center for Tissue Repair and Regeneration, University of Illinois at Chicago, Chicago, IL, USA.
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Novakovic P, Harding JCS, Al-Dissi AN, Ladinig A, Detmer SE. Pathologic Evaluation of Type 2 Porcine Reproductive and Respiratory Syndrome Virus Infection at the Maternal-Fetal Interface of Late Gestation Pregnant Gilts. PLoS One 2016; 11:e0151198. [PMID: 26963101 PMCID: PMC4786155 DOI: 10.1371/journal.pone.0151198] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2015] [Accepted: 02/24/2016] [Indexed: 11/18/2022] Open
Abstract
The pathogenesis of fetal death caused by porcine reproductive and respiratory syndrome virus (PRRSV) remains unclear. The objective of this study was to improve our understanding of the pathogenesis by assessing potential relationships between specific histopathological lesions and PRRSV RNA concentration in the fetuses and the maternal-fetal interface. Pregnant gilts were inoculated with PRRSV (n = 114) or sham inoculated (n = 19) at 85±1 days of gestation. Dams and their litters were humanely euthanized and necropsied 21 days later. PRRSV RNA concentration was measured by qRT-PCR in the maternal-fetal interface and fetal thymus (n = 1391). Presence of fetal lesions was positively related to PRRSV RNA concentration in the maternal-fetal interface and fetal thymus (P<0.05 for both), but not to the distribution or severity of vasculitis, or the severity of endometrial inflammation. The presence of fetal and umbilical lesions was associated with greater odds of meconium staining (P<0.05 for both). The distribution and severity of vasculitis in endometrium were not significantly related to PRRSV RNA concentration in maternal-fetal interface or fetal thymus. Endometrial inflammation severity was positively related to distribution and severity of vasculitis in endometrium (P<0.001 for both). Conclusions from this study suggest that type 2 PRRSV infection in pregnant gilts induces significant histopathological lesions at maternal-fetal interface, but they are not associated with presence of PRRSV in the maternal-fetal interface at 21 days post infection. Conversely, fetal pathological lesions are associated with presence of PRRSV in the maternal-fetal interface and fetal thymus, and meconium staining is significantly associated with the presence of both fetal and umbilical lesions observed 21 days post infection.
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Affiliation(s)
- Predrag Novakovic
- Department of Veterinary Pathology, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK, Canada
- * E-mail:
| | - John C. S. Harding
- Department of Large Animal Clinical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK, Canada
| | - Ahmad N. Al-Dissi
- Department of Veterinary Pathology, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK, Canada
| | - Andrea Ladinig
- Department of Large Animal Clinical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK, Canada
- University Clinic for Swine, Department for Farm Animals and Veterinary Public Health, University of Veterinary Medicine Vienna, Vienna, Austria
| | - Susan E. Detmer
- Department of Veterinary Pathology, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK, Canada
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Danlos FX, Daoued-Keffi F, Rohmer J, Cluzel G, Blanc-Autran E, François H, Lazure T, Seror R, Mariette X. IgG4-related disease associated with renal microaneurysms and polycythaemia. Rheumatology (Oxford) 2016; 55:380-2. [PMID: 26464522 PMCID: PMC5854041 DOI: 10.1093/rheumatology/kev365] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Revised: 09/02/2015] [Indexed: 12/24/2022] Open
Affiliation(s)
| | | | | | | | - Estelle Blanc-Autran
- Service de médecine nucléaire, Centre Chirurgical Marie Lannelongue, Le Plessis-Robinson
| | | | - Thierry Lazure
- Service d'anatomopathologie, Hôpital Bicêtre, Le Kremlin Bicêtre, France
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Karpman D, Ståhl AL, Arvidsson I, Johansson K, Loos S, Tati R, Békássy Z, Kristoffersson AC, Mossberg M, Kahn R. Complement Interactions with Blood Cells, Endothelial Cells and Microvesicles in Thrombotic and Inflammatory Conditions. Adv Exp Med Biol 2015; 865:19-42. [PMID: 26306441 DOI: 10.1007/978-3-319-18603-0_2] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
The complement system is activated in the vasculature during thrombotic and inflammatory conditions. Activation may be associated with chronic inflammation on the endothelial surface leading to complement deposition. Complement mutations allow uninhibited complement activation to occur on platelets, neutrophils, monocytes, and aggregates thereof, as well as on red blood cells and endothelial cells. Furthermore, complement activation on the cells leads to the shedding of cell derived-microvesicles that may express complement and tissue factor thus promoting inflammation and thrombosis. Complement deposition on red blood cells triggers hemolysis and the release of red blood cell-derived microvesicles that are prothrombotic. Microvesicles are small membrane vesicles ranging from 0.1 to 1 μm, shed by cells during activation, injury and/or apoptosis that express components of the parent cell. Microvesicles are released during inflammatory and vascular conditions. The repertoire of inflammatory markers on endothelial cell-derived microvesicles shed during inflammation is large and includes complement. These circulating microvesicles may reflect the ongoing inflammatory process but may also contribute to its propagation. This overview will describe complement activation on blood and endothelial cells and the release of microvesicles from these cells during hemolytic uremic syndrome, thrombotic thrombocytopenic purpura and vasculitis, clinical conditions associated with enhanced thrombosis and inflammation.
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Affiliation(s)
- Diana Karpman
- Department of Pediatrics, Clinical Sciences Lund, Lund University, Lund, Sweden,
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He C, Li H, Viollet B, Zou MH, Xie Z. AMPK Suppresses Vascular Inflammation In Vivo by Inhibiting Signal Transducer and Activator of Transcription-1. Diabetes 2015; 64:4285-97. [PMID: 25858560 PMCID: PMC4657575 DOI: 10.2337/db15-0107] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2015] [Accepted: 03/31/2015] [Indexed: 12/14/2022]
Abstract
Activation of AMPK suppresses inflammation, but the underlying mechanisms remain poorly understood. This study was designed to characterize the molecular mechanisms by which AMPK suppresses vascular inflammation. In cultured human aortic smooth muscle cells, pharmacologic or genetic activation of AMPK inhibited the signal transducer and activator of transcription-1 (STAT1), while inhibition of AMPK had opposite effects. Deletion of AMPKα1 or AMPKα2 resulted in activation of STAT1 and in increases in proinflammatory mediators, both of which were attenuated by administration of STAT1 small interfering RNA or fludarabine, a selective STAT1 inhibitor. Moreover, AMPK activation attenuated the proinflammatory actions induced by STAT1 activators such as interferon-γ and angiotensin II (AngII). Mechanistically, we found that AMPK activation increased, whereas AMPK inhibition decreased, the levels of mitogen-activated protein kinase phosphatase-1 (MKP-1), an inducible nuclear phosphatase, by regulating proteasome-dependent degradation of MKP-1. Gene silencing of MKP-1 increased STAT1 phosphorylation and prevented 5-aminoimidazole-4-carboxyamide ribonucleoside-reduced STAT1 phosphorylation. Finally, we found that infusion of AngII caused a more severe inflammatory response in AMPKα2 knockout mouse aortas, all of which were suppressed by chronic administration of fludarabine. We conclude that AMPK activation suppresses STAT1 signaling and inhibits vascular inflammation through the upregulation of MKP-1.
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MESH Headings
- AMP-Activated Protein Kinases/antagonists & inhibitors
- AMP-Activated Protein Kinases/chemistry
- AMP-Activated Protein Kinases/genetics
- AMP-Activated Protein Kinases/metabolism
- Angiotensin II/adverse effects
- Animals
- Anti-Inflammatory Agents, Non-Steroidal/pharmacology
- Aorta, Thoracic
- Cells, Cultured
- Dual Specificity Phosphatase 1/antagonists & inhibitors
- Dual Specificity Phosphatase 1/chemistry
- Dual Specificity Phosphatase 1/genetics
- Dual Specificity Phosphatase 1/metabolism
- Enzyme Activation/drug effects
- Humans
- Interferon-gamma/adverse effects
- MAP Kinase Signaling System/drug effects
- Mice, Inbred C57BL
- Mice, Knockout
- Muscle, Smooth, Vascular/drug effects
- Muscle, Smooth, Vascular/immunology
- Muscle, Smooth, Vascular/metabolism
- Muscle, Smooth, Vascular/pathology
- Phosphorylation/drug effects
- Protein Processing, Post-Translational/drug effects
- RNA Interference
- Random Allocation
- Recombinant Proteins/chemistry
- Recombinant Proteins/metabolism
- STAT1 Transcription Factor/agonists
- STAT1 Transcription Factor/antagonists & inhibitors
- STAT1 Transcription Factor/genetics
- STAT1 Transcription Factor/metabolism
- Vasculitis/chemically induced
- Vasculitis/immunology
- Vasculitis/metabolism
- Vasculitis/pathology
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Affiliation(s)
- Chaoyong He
- Section of Molecular Medicine, Department of Medicine, University of Oklahoma Health Sciences Center, Oklahoma City, OK
| | - Hongliang Li
- Section of Molecular Medicine, Department of Medicine, University of Oklahoma Health Sciences Center, Oklahoma City, OK
| | - Benoit Viollet
- INSERM U1016, Institut Cochin, Paris, France CNRS UMR 8104, Paris, France Université Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - Ming-Hui Zou
- Section of Molecular Medicine, Department of Medicine, University of Oklahoma Health Sciences Center, Oklahoma City, OK
| | - Zhonglin Xie
- Section of Molecular Medicine, Department of Medicine, University of Oklahoma Health Sciences Center, Oklahoma City, OK
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Millon A, Sigovan M, Boussel L, Mathevet JL, Louzier V, Paquet C, Geloen A, Provost N, Majd Z, Patsouris D, Serusclat A, Canet-Soulas E. Low WSS Induces Intimal Thickening, while Large WSS Variation and Inflammation Induce Medial Thinning, in an Animal Model of Atherosclerosis. PLoS One 2015; 10:e0141880. [PMID: 26575029 PMCID: PMC4648591 DOI: 10.1371/journal.pone.0141880] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2015] [Accepted: 10/14/2015] [Indexed: 12/14/2022] Open
Abstract
OBJECTIVE Atherosclerotic plaque development in the arterial wall is the result of complex interaction between the wall's endothelial layer and blood hemodynamics. However, the interaction between hemodynamic parameters and inflammation in plaque evolution is not yet fully understood. The aim of the present study was to investigate the relation between wall shear stress (WSS) and vessel wall inflammation during atherosclerotic plaque development in a minipig model of carotid stenosis. METHODS A surgical procedure was performed to create left common carotid artery stenosis by placement of a perivascular cuff in minipigs under atherogenic diet. Animals were followed up on 3T MRI, 1 week after surgery and 3, 6, and 8 months after initiation of the diet. Computational fluid dynamics simulation estimated WSS distribution for the first imaging point. Vascular geometries were co-registered for direct comparison of plaque development and features (Gadolinium- and USPIO-Contrast Enhanced MRI, for permeability and inflammation respectively) with the initial WSS. Histological analysis was performed and sections were matched to MR images, based on spatial landmarks. RESULTS Vessel wall thickening, permeability and inflammation were observed distally from the stenosis. They were eccentric and facing regions of normal wall thickness. Histological analysis confirmed eccentric plaque formation with lipid infiltration, intimal thickening and medial degradation. High phagocytic activity in the stenosis region was co-localized with high WSS, corresponding to intense medial degradation observed on histology samples. CONCLUSION Lower WSS promotes atherosclerotic plaque development distal to an induced stenosis. Vascular and perivascular inflammation locations were predominant in the high WSS stenosis segment, where medial thinning was the major consequence.
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Affiliation(s)
- Antoine Millon
- Lyon-1 University, CREATIS Laboratory, Lyon, France
- Hospices Civils de Lyon, Lyon, France
- * E-mail:
| | | | - Loic Boussel
- Lyon-1 University, CREATIS Laboratory, Lyon, France
- Hospices Civils de Lyon, Lyon, France
| | | | | | | | - Alain Geloen
- Lyon-1 University, CARMEN Laboratory, INSERM U1060, Lyon, France
| | | | | | - David Patsouris
- Lyon-1 University, CARMEN Laboratory, INSERM U1060, Lyon, France
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Shu X, Keller TCS, Begandt D, Butcher JT, Biwer L, Keller AS, Columbus L, Isakson BE. Endothelial nitric oxide synthase in the microcirculation. Cell Mol Life Sci 2015; 72:4561-75. [PMID: 26390975 DOI: 10.1007/s00018-015-2021-0] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2015] [Revised: 07/21/2015] [Accepted: 08/11/2015] [Indexed: 02/07/2023]
Abstract
Endothelial nitric oxide synthase (eNOS, NOS3) is responsible for producing nitric oxide (NO)--a key molecule that can directly (or indirectly) act as a vasodilator and anti-inflammatory mediator. In this review, we examine the structural effects of regulation of the eNOS enzyme, including post-translational modifications and subcellular localization. After production, NO diffuses to surrounding cells with a variety of effects. We focus on the physiological role of NO and NO-derived molecules, including microvascular effects on vessel tone and immune response. Regulation of eNOS and NO action is complicated; we address endogenous and exogenous mechanisms of NO regulation with a discussion of pharmacological agents used in clinical and laboratory settings and a proposed role for eNOS in circulating red blood cells.
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Affiliation(s)
- Xiaohong Shu
- College of Pharmacy, Dalian Medical University, Dalian, 116044, China
- Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, P.O. Box 801394, Charlottesville, VA, 22908, USA
| | - T C Stevenson Keller
- Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, P.O. Box 801394, Charlottesville, VA, 22908, USA
- Department of Molecular Physiology and Biophysics, University of Virginia School of Medicine, Charlottesville, USA
| | - Daniela Begandt
- Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, P.O. Box 801394, Charlottesville, VA, 22908, USA
| | - Joshua T Butcher
- Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, P.O. Box 801394, Charlottesville, VA, 22908, USA
| | - Lauren Biwer
- Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, P.O. Box 801394, Charlottesville, VA, 22908, USA
- Department of Molecular Physiology and Biophysics, University of Virginia School of Medicine, Charlottesville, USA
| | - Alexander S Keller
- Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, P.O. Box 801394, Charlottesville, VA, 22908, USA
- Department of Pharmacology, University of Virginia School of Medicine, Charlottesville, USA
| | - Linda Columbus
- Department of Chemistry, University of Virginia, Charlottesville, USA
| | - Brant E Isakson
- Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, P.O. Box 801394, Charlottesville, VA, 22908, USA.
- Department of Molecular Physiology and Biophysics, University of Virginia School of Medicine, Charlottesville, USA.
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Galvani S, Sanson M, Blaho VA, Swendeman SL, Obinata H, Conger H, Dahlbäck B, Kono M, Proia RL, Smith JD, Hla T. HDL-bound sphingosine 1-phosphate acts as a biased agonist for the endothelial cell receptor S1P1 to limit vascular inflammation. Sci Signal 2015; 8:ra79. [PMID: 26268607 PMCID: PMC4768813 DOI: 10.1126/scisignal.aaa2581] [Citation(s) in RCA: 227] [Impact Index Per Article: 25.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The sphingosine 1-phosphate receptor 1 (S1P1) is abundant in endothelial cells, where it regulates vascular development and microvascular barrier function. In investigating the role of endothelial cell S1P1 in adult mice, we found that the endothelial S1P1 signal was enhanced in regions of the arterial vasculature experiencing inflammation. The abundance of proinflammatory adhesion proteins, such as ICAM-1, was enhanced in mice with endothelial cell-specific deletion of S1pr1 and suppressed in mice with endothelial cell-specific overexpression of S1pr1, suggesting a protective function of S1P1 in vascular disease. The chaperones ApoM(+)HDL (HDL) or albumin bind to sphingosine 1-phosphate (S1P) in the circulation; therefore, we tested the effects of S1P bound to each chaperone on S1P1 signaling in cultured human umbilical vein endothelial cells (HUVECs). Exposure of HUVECs to ApoM(+)HDL-S1P, but not to albumin-S1P, promoted the formation of a cell surface S1P1-β-arrestin 2 complex and attenuated the ability of the proinflammatory cytokine TNFα to activate NF-κB and increase ICAM-1 abundance. Although S1P bound to either chaperone induced MAPK activation, albumin-S1P triggered greater Gi activation and receptor endocytosis. Endothelial cell-specific deletion of S1pr1 in the hypercholesterolemic Apoe(-/-) mouse model of atherosclerosis enhanced atherosclerotic lesion formation in the descending aorta. We propose that the ability of ApoM(+)HDL to act as a biased agonist on S1P1 inhibits vascular inflammation, which may partially explain the cardiovascular protective functions of HDL.
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Affiliation(s)
- Sylvain Galvani
- Center for Vascular Biology, Department of Pathology and Laboratory Medicine, Weill Cornell Medical College, Cornell University, New York, NY 10065, USA
| | - Marie Sanson
- Center for Vascular Biology, Department of Pathology and Laboratory Medicine, Weill Cornell Medical College, Cornell University, New York, NY 10065, USA
| | - Victoria A Blaho
- Center for Vascular Biology, Department of Pathology and Laboratory Medicine, Weill Cornell Medical College, Cornell University, New York, NY 10065, USA
| | - Steven L Swendeman
- Center for Vascular Biology, Department of Pathology and Laboratory Medicine, Weill Cornell Medical College, Cornell University, New York, NY 10065, USA
| | - Hideru Obinata
- Center for Vascular Biology, Department of Pathology and Laboratory Medicine, Weill Cornell Medical College, Cornell University, New York, NY 10065, USA
| | - Heather Conger
- Department of Cellular and Molecular Medicine, Cleveland Clinic Lerner Research Institute, Cleveland, OH 44195, USA
| | - Björn Dahlbäck
- Department of Translational Medicine, Skåne University Hospital, Lund University, 214 28 Malmö, Sweden
| | - Mari Kono
- Genetics of Development and Disease Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Richard L Proia
- Genetics of Development and Disease Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Jonathan D Smith
- Department of Cellular and Molecular Medicine, Cleveland Clinic Lerner Research Institute, Cleveland, OH 44195, USA
| | - Timothy Hla
- Center for Vascular Biology, Department of Pathology and Laboratory Medicine, Weill Cornell Medical College, Cornell University, New York, NY 10065, USA.
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Affiliation(s)
- Mehran M Sadeghi
- Section of Cardiovascular Medicine and Cardiovascular Research Center, Yale University School of Medicine, New Haven, CT, USA,
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40
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Abstract
Autoantibody (autoAb) production in patients with systemic autoimmune diseases is a hallmark of disease entity, activity and prognosis. Although a large number of autoAbs have been discovered to date, there is a limited number of autoAbs whose pathogenic roles have been clearly determined. However, intriguing evidence has recently been provided of possible pathogenic roles for anti-neutrophil cytoplasmic Abs (ANCAs) against myeloperoxidase (MPO) in ANCA-associated vasculitides (AAV) and for anti-citrullinated protein Abs (ACPAs) in rheumatoid arthritis (RA). Of note, these autoAbs are thought to display both direct and indirect effects on organ failure. Additionally, some autoAbs have been reported to play pathogenic roles in brain damage in patients with neuropsychiatric systemic lupus erythematosus (NPSLE), which is one of the most refractory autoimmune disorders. Thus the binding of autoAbs to a certain sequence of the N-methyl-D-aspartate receptor subunit NR2 (anti-NR2 Abs) may directly induce hippocampal neuronal injury. On the other hand, anti-U1 ribonucleoprotein (RNP) Abs might be pathogenic by inducing neurotoxic inflammatory mediators intrathecally. Such autoAb measurements are also clinically meaningful for treatment selection.
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Affiliation(s)
- Takao Fujii
- Department of the Control for Rheumatic Diseases, Graduate School of Medicine, Kyoto University, Kyoto, Japan
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41
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Song W, Yang Z, He B. Bestrophin 3 ameliorates TNFα-induced inflammation by inhibiting NF-κB activation in endothelial cells. PLoS One 2014; 9:e111093. [PMID: 25329324 PMCID: PMC4203846 DOI: 10.1371/journal.pone.0111093] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2014] [Accepted: 09/22/2014] [Indexed: 01/20/2023] Open
Abstract
Increasing evidences have suggested vascular endothelial inflammatory processes are the initiator of atherosclerosis. Bestrophin 3 (Best-3) is involved in the regulation of cell proliferation, apoptosis and differentiation of a variety of physiological functions, but its function in cardiovascular system remains unclear. In this study, we investigated the effect of Best-3 on endothelial inflammation. We first demonstrated that Best-3 is expressed in endothelial cells and decreased after tumor necrosis factor-α (TNFα) challenge. Overexpression of Best-3 significantly attenuated TNFα-induced expression of adhesion molecules and chemokines, and subsequently inhibited the adhesion of monocytes to human umbilical vein endothelial cells (HUVECs). Conversely, knockdown of Best-3 with siRNA resulted in an enhancement on TNFα-induced expression of adhesion molecules and chemokines and adhesion of monocytes to HUVECs. Furthermore, overexpression of Best-3 with adenovirus dramatically ameliorated inflammatory response in TNFα-injected mice. Mechanistically, we found up-regulation of Best-3 inhibited TNFα-induced IKKβ and IκBα phosphorylation, IκBα degradation and NF-κB translocation. Our results demonstrated that Best-3 is an endogenous inhibitor of NF-κB signaling pathway in endothelial cells, suggesting that forced Best-3 expression may be a novel approach for the treatment of vascular inflammatory diseases.
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Affiliation(s)
- Wei Song
- Department of Cardiology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Zhen Yang
- Department of Hypertension and Vascular Disease, the First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Ben He
- Department of Cardiology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
- * E-mail:
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Okamoto T, Akita N, Hayashi T, Shimaoka M, Suzuki K. Endothelial connexin 32 regulates tissue factor expression induced by inflammatory stimulation and direct cell-cell interaction with activated cells. Atherosclerosis 2014; 236:430-7. [PMID: 25171777 DOI: 10.1016/j.atherosclerosis.2014.07.025] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2014] [Revised: 07/22/2014] [Accepted: 07/24/2014] [Indexed: 11/19/2022]
Abstract
OBJECTIVE Endothelial cell (EC) interacts with adjacent EC through gap junction, and abnormal expression or function of Cxs is associated with cardiovascular diseases. In patients with endothelial dysfunction, the up-regulation of tissue factor (TF) expression promotes the pathogenic activation of blood coagulation, however the relationship between gap junctions and TF expression in ECs remains uncharacterized. ECs express the gap junction (GJ) proteins connexin32 (Cx32), Cx37, Cx40 and Cx43. We investigated the role of endothelial gap junctions, particularly Cx32, in modulating TF expression during vascular inflammation. METHODS AND RESULTS Human umbilical vein endothelial cells (HUVECs) were stimulated with tumor necrosis factor-α (TNF-α) and TF activity was assessed in the presence of GJ blockers and an inhibitory anti-Cx32 monoclonal antibody. Treatment with GJ blockers and anti-Cx32 monoclonal antibody enhanced the TNF-α-induced TF activity and mRNA expression in HUVECs. TNF-α-activated effector HUVECs or mouse MS-1 cells were co-cultured with non-stimulated acceptor HUVECs and TF expression in acceptor HUVECs was detected. Effector EC induced TF expression in adjacent acceptor HUVECs through direct cell-cell interaction. Cell-cell interaction induced TF expression was reduced by anti-intercellular adhesion molecule-1 (ICAM1) monoclonal antibody. Soluble ICAM1-Fc fusion protein promotes TF expression. GJ blockers and anti-Cx32 monoclonal antibody enhanced TF expression induced by cell-cell interaction and ICAM1-Fc treatment. CONCLUSION Blockade of endothelial Cx32 increased TF expression induced by TNF-α stimulation and cell-cell interaction which was at least partly dependent upon ICAM1. These results suggest that direct Cx32-mediated interaction modulates TF expression in ECs during vascular inflammation.
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Affiliation(s)
- Takayuki Okamoto
- Department of Molecular Pathobiology and Cell Adhesion Biology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie 514-8507, Japan
| | - Nobuyuki Akita
- Faculty of Medical Engineering, Suzuka University of Medical Science, 1001-1, Kishioka-cho, Suzuka, Mie 510-0293, Japan
| | - Tatsuya Hayashi
- Department of Biochemistry, Mie Prefectural College of Nursing, 1-1-1 Yumegaoka, Tsu, Mie 514-0116, Japan
| | - Motomu Shimaoka
- Department of Molecular Pathobiology and Cell Adhesion Biology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie 514-8507, Japan
| | - Koji Suzuki
- Department of Molecular Pathobiology and Cell Adhesion Biology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie 514-8507, Japan; Faculty of Pharmaceutical Science, Suzuka University of Medical Science, 3500-3, Minamitamagaki-cho, Suzuka, Mie 513-8679, Japan.
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Cheng AM, Rizzo-DeLeon N, Wilson CL, Lee WJ, Tateya S, Clowes AW, Schwartz MW, Kim F. Vasodilator-stimulated phosphoprotein protects against vascular inflammation and insulin resistance. Am J Physiol Endocrinol Metab 2014; 307:E571-9. [PMID: 25117404 PMCID: PMC4187027 DOI: 10.1152/ajpendo.00303.2014] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Among the pleotropic effects of endothelial nitric oxide (NO) is protection against vascular inflammation during high-fat diet (HFD) feeding. The current work investigated the role of the enzyme vasodilatory-stimulated phosphoprotein (VASP) as a downstream mediator of the anti-inflammatory effect of NO signaling in vascular tissue. Relative to mice fed a low-fat diet (LFD), levels of VASP Ser(239) phosphorylation, a marker of VASP activation, were dramatically reduced in aortic tissue of mice with obesity induced by consuming a HFD. As reported previously, the effect of the HFD was associated with increased aortic inflammation, as measured by increased NF-κB-dependent gene expression, and reduced vascular insulin sensitivity (including insulin-stimulated phosphorylation of eNOS and Akt). These effects of the HFD were recapitulated by VASP knockout, implying a physiological role for VASP to constrain inflammatory signaling and thereby maintain vascular insulin sensitivity. Conversely, overexpression of VASP in endothelial cells blocked inflammation and insulin resistance induced by palmitate. The finding that transplantation of bone marrow from VASP-deficient donors into normal recipients does not recapitulate the vascular effects of whole body VASP deficiency suggests that the protective effects of this enzyme are not mediated in immune or other bone marrow-derived cells. These studies implicate VASP as a downstream mediator of the NO/cGMP pathway that is both necessary and sufficient to protect against vascular inflammation and insulin resistance. As such, this work identifies VASP as a potential therapeutic target in the treatment of obesity-related vascular dysfunction.
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Affiliation(s)
- Andrew M Cheng
- Department of Medicine, Diabetes and Obesity Center of Excellence, University of Washington, Seattle, Washington
| | - Norma Rizzo-DeLeon
- Department of Medicine, Diabetes and Obesity Center of Excellence, University of Washington, Seattle, Washington
| | | | - Woo Je Lee
- Department of Medicine, Diabetes and Obesity Center of Excellence, University of Washington, Seattle, Washington
| | - Sanshiro Tateya
- Department of Medicine, Diabetes and Obesity Center of Excellence, University of Washington, Seattle, Washington
| | | | - Michael W Schwartz
- Department of Medicine, Diabetes and Obesity Center of Excellence, University of Washington, Seattle, Washington
| | - Francis Kim
- Department of Medicine, Diabetes and Obesity Center of Excellence, University of Washington, Seattle, Washington
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Zhou CH, Pan J, Huang H, Zhu Y, Zhang M, Liu L, Wu Y. Salusin-β, but not salusin-α, promotes human umbilical vein endothelial cell inflammation via the p38 MAPK/JNK-NF-κB pathway. PLoS One 2014; 9:e107555. [PMID: 25210730 PMCID: PMC4161457 DOI: 10.1371/journal.pone.0107555] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2014] [Accepted: 08/14/2014] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE Recently, salusin-β has been reported to have pro-atherosclerotic effects, but salusin-α has anti-atherosclerotic effects. Our previous study has shown that salusin-β but not salusin-α promotes vascular inflammation in apoE-deficient mice. However, the underlying mechanism remains unknown. In this study, we observed the effect of salusins on inflammatory responses and the MAPK-NF-κB signaling pathway in human umbilical vein endothelial cells (HUVECs). METHODS AND RESULTS HUVECs were incubated with different concentrations of salusin-α and salusin-β. The levels of interleukin-6 (IL-6) and tumor necrosis factor-α (TNF-α) were determined using enzyme-linked immunosorbent assay (ELISA). The mRNA expressions of vascular cell adhesion molecule-1 (VCAM-1) and monocyte chemoattractant protein-1 (MCP-1) were quantified using quantitative real-time polymerase chain reaction (PCR). The protein expressions of VCAM-1, MCP-1, I-κBα, NF-κB, p-JNK and p-p38 MAPK were measured using western blotting analysis. Our results showed that in HUVECs, salusin-β could up-regulate the levels of IL-6, TNF-α, VCAM-1 and MCP-1, promote I-κBα degradation and NF-κB activation, and increase the phosphorylation of JNK and p38 MAPK. These effects could be inhibited by p38 MAPK inhibitor SB203580 and/or JNK inhibitor SP600125. In contrast, salusin-α could selectively decrease VCAM-1 protein, but did not show any effect on the expressions of VCAM-1 mRNA, TNF-α, IL-6, MCP-1, I-κBα, NF-κB, p-JNK or p-p38 MAPK. CONCLUSION Salusin-β was able to promote inflammatory responses in HUVECs via the p38 MAPK-NF-κB and JNK-NF-κB pathways. In contrast, salusin-α failed to show any significant effects on the inflammatory responses in HUVECs. These results provide further insight into the mechanisms behind salusins in vascular inflammation and offer a potential target for the prevention and treatment of atherosclerosis.
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Affiliation(s)
- Cheng-Hua Zhou
- School of Pharmacy, Xuzhou Medical College, Xuzhou, China
- * E-mail: (YQW); (CHZ)
| | - Jin Pan
- School of Pharmacy, Xuzhou Medical College, Xuzhou, China
| | - He Huang
- Jiangsu Province Key Laboratory of Anesthesiology, Xuzhou Medical College, Xuzhou, China
| | - Yangzi Zhu
- Jiangsu Province Key Laboratory of Anesthesiology, Xuzhou Medical College, Xuzhou, China
| | - Mingxing Zhang
- School of Pharmacy, Xuzhou Medical College, Xuzhou, China
| | - Lian Liu
- School of Pharmacy, Xuzhou Medical College, Xuzhou, China
| | - Yuqing Wu
- Jiangsu Province Key Laboratory of Anesthesiology, Xuzhou Medical College, Xuzhou, China
- Department of Anesthetic Pharmacology, Xuzhou Medical College, Xuzhou, China
- * E-mail: (YQW); (CHZ)
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Yadav R, France M, Aghamohammadzadeh R, Liu Y, Hama S, Kwok S, Schofield J, Turkington P, Syed AA, Malik R, Pemberton P, Greenstein A, Durrington P, Ammori B, Gibson M, Jeziorska M, Soran H. Impairment of high-density lipoprotein resistance to lipid peroxidation and adipose tissue inflammation in obesity complicated by obstructive sleep apnea. J Clin Endocrinol Metab 2014; 99:3390-8. [PMID: 24823455 DOI: 10.1210/jc.2013-3939] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
Abstract
CONTEXT Obstructive sleep apnea (OSA) complicates morbid obesity and is associated with increased cardiovascular disease incidence. An increase in the circulating markers of chronic inflammation and dysfunctional high-density lipoprotein (HDL) occur in severe obesity. OBJECTIVE The objective of the study was to establish whether the effects of obesity on inflammation and HDL dysfunction are more marked when complicated by OSA. DESIGN AND PATIENTS Morbidly obese patients (n = 41) were divided into those whose apnea-hypoapnea index (AHI) was more or less than the median value and on the presence of OSA [OSA and no OSA (nOSA) groups]. We studied the antioxidant function of HDL and measured serum paraoxonase 1 (PON1) activity, TNFα, and intercellular adhesion molecule 1 (ICAM-1) levels in these patients. In a subset of 19 patients, we immunostained gluteal sc adipose tissue (SAT) for TNFα, macrophages, and measured adipocyte size. RESULTS HDL lipid peroxide levels were higher and serum PON1 activity was lower in the high AHI group vs the low AHI group (P < .05 and P < .0001, respectively) and in the OSA group vs the nOSA group (P = .005 and P < .05, respectively). Serum TNFα and ICAM-1 levels and TNFα immunostaining in SAT increased with the severity of OSA. Serum PON1 activity was inversely correlated with AHI (r = -0.41, P < .03) in the OSA group. TNFα expression in SAT directly correlated with AHI (r = 0.53, P < .03) in the subset of 19 patients from whom a biopsy was obtained. CONCLUSION Increased serum TNFα, ICAM-1, and TNFα expression in SAT provide a mechanistic basis for enhanced inflammation in patients with OSA. Decreased serum PON1 activity, impaired HDL antioxidant function, and increased adipose tissue inflammation in these patients could be a mechanism for HDL and endothelial dysfunction.
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Affiliation(s)
- Rahul Yadav
- Cardiovascular Research Group (R.Y., M.F., R.A., Y.L., S.H., S.K., J.S., R.M., A.G., P.D., M.J., H.S.), Core Technologies Facility, University of Manchester, Manchester M13 9PT, United Kingdom; Cardiovascular Trials Unit (R.Y., M.F. S.K., J.S., H.S.) and Department of Clinical Biochemistry (M.F., P.P.), Central Manchester University Hospitals, National Health Service Foundation Trust, Manchester M13 9WL, United Kingdom; and Departments of Medicine (P.T., A.A.S.) and Surgery (B.A.), the North West Diabetes Local Research Network (M.G.), Salford Royal National Health Service Foundation Trust, Salford M6 8HD, United Kingdom
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Bollmann F, Wu Z, Oelze M, Siuda D, Xia N, Henke J, Daiber A, Li H, Stumpo DJ, Blackshear PJ, Kleinert H, Pautz A. Endothelial dysfunction in tristetraprolin-deficient mice is not caused by enhanced tumor necrosis factor-α expression. J Biol Chem 2014; 289:15653-65. [PMID: 24727475 PMCID: PMC4140920 DOI: 10.1074/jbc.m114.566984] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2014] [Revised: 04/09/2014] [Indexed: 01/01/2023] Open
Abstract
Cardiovascular events are important co-morbidities in patients with chronic inflammatory diseases like rheumatoid arthritis. Tristetraprolin (TTP) regulates pro-inflammatory processes through mRNA destabilization and therefore TTP-deficient mice (TTP(-/-) mice) develop a chronic inflammation resembling human rheumatoid arthritis. We used this mouse model to evaluate molecular signaling pathways contributing to the enhanced atherosclerotic risk in chronic inflammatory diseases. In the aorta of TTP(-/-) mice we observed elevated mRNA expression of known TTP targets like tumor necrosis factor-α (TNF-α) and macrophage inflammatory protein-1α, as well as of other pro-atherosclerotic mediators, like Calgranulin A, Cathepsin S, and Osteopontin. Independent of cholesterol levels TTP(-/-) mice showed a significant reduction of acetylcholine-induced, nitric oxide-mediated vasorelaxation. The endothelial dysfunction in TTP(-/-) mice was associated with increased levels of reactive oxygen and nitrogen species (RONS), indicating an enhanced nitric oxide inactivation by RONS in the TTP(-/-) animals. The altered RONS generation correlates with increased expression of NADPH oxidase 2 (Nox2) resulting from enhanced Nox2 mRNA stability. Although TNF-α is believed to be a central mediator of inflammation-driven atherosclerosis, genetic inactivation of TNF-α neither improved endothelial function nor normalized Nox2 expression or RONS production in TTP(-/-) animals. Systemic inflammation caused by TTP deficiency leads to endothelial dysfunction. This process is independent of cholesterol and not mediated by TNF-α solely. Thus, other mediators, which need to be identified, contribute to enhanced cardiovascular risk in chronic inflammatory diseases.
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Affiliation(s)
- Franziska Bollmann
- From the Department of Pharmacology, Center for Thrombosis and Hemostasis, and
| | | | - Matthias Oelze
- 2nd Medical Clinic, Molecular Cardiology, University Medical Center of the Johannes Gutenberg University, 55131 Mainz, Germany and
| | - Daniel Siuda
- From the Department of Pharmacology, Center for Thrombosis and Hemostasis, and
| | - Ning Xia
- From the Department of Pharmacology
| | | | - Andreas Daiber
- 2nd Medical Clinic, Molecular Cardiology, University Medical Center of the Johannes Gutenberg University, 55131 Mainz, Germany and
| | - Huige Li
- From the Department of Pharmacology
| | - Deborah J Stumpo
- the Laboratory of Signal Transduction, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina 27709
| | - Perry J Blackshear
- the Laboratory of Signal Transduction, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina 27709
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Wan R, Jin L, Zhu C, Liu Y, Li L, Guo R, Li S. Sex difference in urocortin production is contributory to the gender disparity in a rat model of vasculitis induced by sodium laurate. Endocrinology 2013; 154:4663-74. [PMID: 24064363 DOI: 10.1210/en.2013-1572] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Cardiovascular diseases, the most common leading death diseases, occur more in men than women of the same ages. Increasing evidence shows that urocortin (Ucn1), an autocrine or paracrine pro-inflammatory factor, can be regulated by sex hormones. The purpose of the study is to investigate the role of Ucn1 in gender disparity in a sodium laurate-induced vasculitis model. Rats exhibited visible signs of vasculitis on the 14th day after sodium laurate injection. Inflammatory states of the rat femoral artery were observed by histological examination. Significant gender disparity, with the symptoms much grosser in males than females, was seen. In males, the serum levels of Ucn1, prostaglandin estradiol, and soluble intercellular adhesion molecule-1 and the expressions of Ucn1, cyclooxygenase-2, and intercellular adhesion molecule-1 in femoral artery were higher than those in females. Orchidectomy significantly ameliorated the symptoms of vasculitis accompanied with a decrease in the plasma Ucn1 level. However, estradiol supplement after orchidectomy failed to improve the inflammatory states further. In females, ovariectomy and/or dihydrotestosterone supplement significantly increased Ucn1 level and exacerbated symptoms of vasculitis. Furthermore, ip administration of rabbit antiserum to Ucn1 almost abolished the gender differences in vasculitis. These results demonstrated that vasculitis of this model is androgen-responsive and hormonal manipulation by surgical orchidectomy could substantially attenuate the symptoms of vasculitis. Moreover, Ucn1 is a contributory factor to the gender disparity in vasculitis and dihydrotestosterone-promoted Ucn1 secretion exacerbated the development of vasculitis.
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Affiliation(s)
- Rong Wan
- Department of Pharmacology, Nanjing Medical University-Jiangsu Provincial Key Lab of Cardiovascular Diseases and Molecular Intervention, Nanjing, China.
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Lu Y, Zhang L, Liao X, Sangwung P, Prosdocimo DA, Zhou G, Votruba AR, Brian L, Han YJ, Gao H, Wang Y, Shimizu K, Weinert-Stein K, Khrestian M, Simon DI, Freedman NJ, Jain MK. Kruppel-like factor 15 is critical for vascular inflammation. J Clin Invest 2013; 123:4232-41. [PMID: 23999430 DOI: 10.1172/jci68552] [Citation(s) in RCA: 71] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2012] [Accepted: 06/28/2013] [Indexed: 12/31/2022] Open
Abstract
Activation of cells intrinsic to the vessel wall is central to the initiation and progression of vascular inflammation. As the dominant cellular constituent of the vessel wall, vascular smooth muscle cells (VSMCs) and their functions are critical determinants of vascular disease. While factors that regulate VSMC proliferation and migration have been identified, the endogenous regulators of VSMC proinflammatory activation remain incompletely defined. The Kruppel-like family of transcription factors (KLFs) are important regulators of inflammation. In this study, we identified Kruppel-like factor 15 (KLF15) as an essential regulator of VSMC proinflammatory activation. KLF15 levels were markedly reduced in human atherosclerotic tissues. Mice with systemic and smooth muscle-specific deficiency of KLF15 exhibited an aggressive inflammatory vasculopathy in two distinct models of vascular disease: orthotopic carotid artery transplantation and diet-induced atherosclerosis. We demonstrated that KLF15 alters the acetylation status and activity of the proinflammatory factor NF-κB through direct interaction with the histone acetyltransferase p300. These studies identify a previously unrecognized KLF15-dependent pathway that regulates VSMC proinflammatory activation.
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Abstract
Amyloid containing senile plaques (SP) and neurofibrillary tangles (NFT) are histologic hallmarks of Alzheimer's disease (AD). Interestingly the SP and NFT found in non-demented, age-matched individuals with ischemic heart disease and/or hypertension are morphologically and topographically identical to those in AD. Cholesterol plays a significant role in production and accumulation of amyloid beta (Abeta) and progression of AD. Cholesterol is also a major contributor in atherosclerotic changes and cardiovascular disease. Numerous studies acknowledged benefits of cholesterol-lowering statins in slowing down the progression of AD, improving cognitive status and significantly reducing risk of cardiovascular events. Accumulating evidence suggests that there is a chronic inflammatory reaction in the areas of the brain affected by AD and C-reactive protein (CRP) is identified as a key molecule of acute phase of inflammation. CRP is also a very sensitive marker for cardiovascular events and excellent prognostic tool in post-heart attack and post-coronary artery bypass surgery recovery. Here we report that cholesterol lowering with atorvastatin produces no significant change in CRP levels in treating AD patients who participated in ADCLT (AD cholesterol lowering trial).
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Wu F, Feng JZ, Qiu YH, Yu FB, Zhang JZ, Zhou W, Yu F, Wang GK, An LN, Ni FH, Wu H, Zhao XX, Qin YW, Luo HD. Activation of receptor for advanced glycation end products contributes to aortic remodeling and endothelial dysfunction in sinoaortic denervated rats. Atherosclerosis 2013; 229:287-94. [PMID: 23880178 DOI: 10.1016/j.atherosclerosis.2013.04.033] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2012] [Revised: 04/11/2013] [Accepted: 04/25/2013] [Indexed: 11/20/2022]
Abstract
OBJECTIVE The aim of present study was to test the hypothesis that activation of receptor for advanced glycation end products (RAGE) pathway contributes to aortic remodeling and endothelial dysfunction in sinoaortic denervated (SAD) rats. METHODS AND RESULTS Experiment 1: 8 weeks after sinoaortic denervation, aortas were removed for measurement of AGE/RAGE pathway. Sinoaortic denervation in rats resulted in enhanced activity of aldose reductase, reduced activity of glyoxalase 1, accumulation of methylglyoxal and AGE, and upregulated expression of RAGE in aortas. Experiment 2: 5 weeks after sinoaortic denervation, the rats received intraperitoneal injections of 500 μg soluble RAGE (sRAGE) daily for 3 weeks. Treatment of SAD rats with sRAGE attenuated aortic remodeling, marked by reduction in AW/length, wall thickness, proliferation of SMC, and collagen deposition, and improvement of endothelial function. Treatment of SAD rats with sRAGE abated aortic oxidative stress, marked by reduction in formation of malondialdehyde, reactive oxygen species, superoxide, peroxynitrite and 3-nitrotyrosine, and enhancement of ratio of GSH/GSSG. Treatment of SAD rats with sRAGE attenuated aortic mitochondrial dysfunction. Treatment of SAD rats with sRAGE suppressed aortic NFκB nuclear translocation and inflammation. Treatment of SAD rats with sRAGE restored aortic NO formation through upregulating eNOS and dimethylarginine dimethylaminohydrolase-2 and downregulating protein arginine methyltransferase-1. CONCLUSION Activated RAGE contributed to aortic remodeling and endothelial dysfunction in SAD rats, possibly via induction of oxidative stress and inflammation, impairment of mitochondrial function, and reduction in NO bioavailability.
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Affiliation(s)
- Feng Wu
- Department of Cardiology, 98th Military Hospital, 9 CheZhan Road, Huzhou 313000, China
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