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Baldi S, Amer B, Alnadari F, Al-Mogahed M, Gao Y, Gamallat Y. The Prognostic and Therapeutic Potential of Fragile X Mental Retardation 1 ( FMR1) Gene Expression in Prostate Adenocarcinoma: Insights into Survival Outcomes and Oncogenic Pathway Modulation. Int J Mol Sci 2024; 25:7290. [PMID: 39000397 PMCID: PMC11242135 DOI: 10.3390/ijms25137290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Revised: 06/22/2024] [Accepted: 06/24/2024] [Indexed: 07/16/2024] Open
Abstract
Prostate adenocarcinoma (PRAD) is the second most common tumor associated with death. The role and mechanisms of the fragile X mental retardation 1 (FMR1) gene in PRAD remain unknown. We conducted an analysis of FMR1 expression in PRAD to determine its prognostic importance and connection to carcinogenic pathways such as PI3K_AKT_mTOR. Survival analyses were utilized to establish a correlation between FMR1 expression and patient outcomes. We used the integration of genomic data with bioinformatic predictions to predict the regulatory factors of the FMR1 gene in PRAD. Our data revealed that individuals with higher levels of FMR1 expression experience worse survival outcomes compared to those with lower expression (hazard ratio [HR] = 5.08, 95% confidence interval [CI] = 1.07 - 24, p = 0.0412). FMR1 expression was significantly higher in patients with advanced pathological tumor stages, particularly in the pT3 and pT4 combined stages and the pN1 nodal stage. Furthermore, patients with high Gleason scores (GSs) (combined GSs 8 and 9) exhibited increased levels of FMR1 expression. Our results further identify a possible regulatory link between FMR1 and key oncogenic pathways, including PI3K_AKT_mTOR, and predict the possible mechanism by which FMR1 is regulated in PRAD. Our data suggest that the FMR1 gene could serve as a biomarker for PRAD progression. However, in-depth investigations, including those with large patient samples and in vitro studies, are needed to validate this finding and understand the mechanisms involved.
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Affiliation(s)
- Salem Baldi
- Department of Medical Laboratory Diagnostics, School of Medical Technology, Shaoyang University, Shaoyang 422000, China
| | - Bushra Amer
- Department of Family Medicine, Michigan State University, East Lansing, MI 49684, USA
| | - Fawze Alnadari
- Research and Development Center of Jiangsu Tianmeijian Nature Bioengineering Co., Ltd., Nanjing 210046, China
| | - Maged Al-Mogahed
- Department of Surgery, The First Bethune Hospital of Jilin University, Changchun 130012, China
| | - Yaqin Gao
- Department of Ultrasound Diagnosis, Zhongda Hospital Southeast University, Nanjing 210009, China
| | - Yaser Gamallat
- Department of Oncology, Biochemistry and Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 1M4, Canada
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Ling CW, Deng K, Yang Y, Lin HR, Liu CY, Li BY, Hu W, Liang X, Zhao H, Tang XY, Zheng JS, Chen YM. Mapping the gut microecological multi-omics signatures to serum metabolome and their impact on cardiometabolic health in elderly adults. EBioMedicine 2024; 105:105209. [PMID: 38908099 PMCID: PMC11253218 DOI: 10.1016/j.ebiom.2024.105209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 05/04/2024] [Accepted: 06/04/2024] [Indexed: 06/24/2024] Open
Abstract
BACKGROUND Mapping gut microecological features to serum metabolites (SMs) will help identify functional links between gut microbiome and cardiometabolic health. METHODS This study encompassed 836-1021 adults over 9.7 year in a cohort, assessing metabolic syndrome (MS), carotid atherosclerotic plaque (CAP), and other metadata triennially. We analyzed mid-term microbial metagenomics, targeted fecal and serum metabolomics, host genetics, and serum proteomics. FINDINGS Gut microbiota and metabolites (GMM) accounted for 15.1% overall variance in 168 SMs, with individual GMM factors explaining 5.65%-10.1%, host genetics 3.23%, and sociodemographic factors 5.95%. Specifically, GMM elucidated 5.5%-49.6% variance in the top 32 GMM-explained SMs. Each 20% increase in the 32 metabolite score (derived from the 32 SMs) correlated with 73% (95% confidence interval [CI]: 53%-95%) and 19% (95% CI: 11%-27%) increases in MS and CAP incidences, respectively. Among the 32 GMM-explained SMs, sebacic acid, indoleacetic acid, and eicosapentaenoic acid were linked to MS or CAP incidence. Serum proteomics revealed certain proteins, particularly the apolipoprotein family, mediated the relationship between GMM-SMs and cardiometabolic risks. INTERPRETATION This study reveals the significant influence of GMM on SM profiles and illustrates the intricate connections between GMM-explained SMs, serum proteins, and the incidence of MS and CAP, providing insights into the roles of gut dysbiosis in cardiometabolic health via regulating blood metabolites. FUNDING This study was jointly supported by the National Natural Science Foundation of China, Key Research and Development Program of Guangzhou, 5010 Program for Clinical Research of Sun Yat-sen University, and the 'Pioneer' and 'Leading goose' R&D Program of Zhejiang.
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Affiliation(s)
- Chu-Wen Ling
- Department of Epidemiology, Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China; Department of Clinical Nutrition, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China
| | - Kui Deng
- Department of Epidemiology, Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China; Zhejiang Key Laboratory of Multi-Omics in Infection and Immunity, Center for Infectious Disease Research, School of Medicine, Westlake University, Hangzhou, 310030, China
| | - Yingdi Yang
- Department of Epidemiology, Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China
| | - Hong-Rou Lin
- Department of Epidemiology, Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China
| | - Chun-Ying Liu
- Department of Epidemiology, Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China
| | - Bang-Yan Li
- Department of Epidemiology, Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China
| | - Wei Hu
- Department of Epidemiology, Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China
| | - Xinxiu Liang
- Zhejiang Key Laboratory of Multi-Omics in Infection and Immunity, Center for Infectious Disease Research, School of Medicine, Westlake University, Hangzhou, 310030, China
| | - Hui Zhao
- Zhejiang Key Laboratory of Multi-Omics in Infection and Immunity, Center for Infectious Disease Research, School of Medicine, Westlake University, Hangzhou, 310030, China
| | - Xin-Yi Tang
- Department of Pediatrics, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China.
| | - Ju-Sheng Zheng
- Zhejiang Key Laboratory of Multi-Omics in Infection and Immunity, Center for Infectious Disease Research, School of Medicine, Westlake University, Hangzhou, 310030, China.
| | - Yu-Ming Chen
- Department of Epidemiology, Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China.
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3
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Stroope C, Nettersheim FS, Coon B, Finney AC, Schwartz MA, Ley K, Rom O, Yurdagul A. Dysregulated cellular metabolism in atherosclerosis: mediators and therapeutic opportunities. Nat Metab 2024; 6:617-638. [PMID: 38532071 PMCID: PMC11055680 DOI: 10.1038/s42255-024-01015-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Accepted: 02/20/2024] [Indexed: 03/28/2024]
Abstract
Accumulating evidence over the past decades has revealed an intricate relationship between dysregulation of cellular metabolism and the progression of atherosclerotic cardiovascular disease. However, an integrated understanding of dysregulated cellular metabolism in atherosclerotic cardiovascular disease and its potential value as a therapeutic target is missing. In this Review, we (1) summarize recent advances concerning the role of metabolic dysregulation during atherosclerosis progression in lesional cells, including endothelial cells, vascular smooth muscle cells, macrophages and T cells; (2) explore the complexity of metabolic cross-talk between these lesional cells; (3) highlight emerging technologies that promise to illuminate unknown aspects of metabolism in atherosclerosis; and (4) suggest strategies for targeting these underexplored metabolic alterations to mitigate atherosclerosis progression and stabilize rupture-prone atheromas with a potential new generation of cardiovascular therapeutics.
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Affiliation(s)
- Chad Stroope
- Department of Molecular and Cellular Physiology, Louisiana State University Health Sciences Center, Shreveport, LA, USA
| | - Felix Sebastian Nettersheim
- La Jolla Institute for Immunology, La Jolla, CA, USA
- Department of Cardiology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - Brian Coon
- Yale Cardiovascular Research Center, Division of Cardiovascular Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, CT, USA
- Cardiovascular Biology Research Program, OMRF, Oklahoma City, OK, USA
- Department of Cell Biology, Oklahoma University Health Sciences Center, Oklahoma City, OK, USA
| | - Alexandra C Finney
- Department of Pathology and Translational Pathobiology, Louisiana State University Health Sciences Center, Shreveport, LA, USA
| | - Martin A Schwartz
- Yale Cardiovascular Research Center, Division of Cardiovascular Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, CT, USA
- Departments of Cell Biology and Biomedical Engineering, Yale University, New Haven, CT, USA
| | - Klaus Ley
- La Jolla Institute for Immunology, La Jolla, CA, USA
- Department of Bioengineering, University of California, San Diego, San Diego, CA, USA
- Immunology Center of Georgia (IMMCG), Augusta University Immunology Center of Georgia, Augusta, GA, USA
| | - Oren Rom
- Department of Molecular and Cellular Physiology, Louisiana State University Health Sciences Center, Shreveport, LA, USA
- Department of Pathology and Translational Pathobiology, Louisiana State University Health Sciences Center, Shreveport, LA, USA
| | - Arif Yurdagul
- Department of Molecular and Cellular Physiology, Louisiana State University Health Sciences Center, Shreveport, LA, USA.
- Department of Pathology and Translational Pathobiology, Louisiana State University Health Sciences Center, Shreveport, LA, USA.
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4
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Sherratt SCR, Libby P, Bhatt DL, Mason RP. A biological rationale for the disparate effects of omega-3 fatty acids on cardiovascular disease outcomes. Prostaglandins Leukot Essent Fatty Acids 2022; 182:102450. [PMID: 35690002 DOI: 10.1016/j.plefa.2022.102450] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 05/09/2022] [Accepted: 05/19/2022] [Indexed: 12/29/2022]
Abstract
The omega-3 fatty acids (n3-FAs) eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) rapidly incorporate into cell membranes where they modulate signal transduction pathways, lipid raft formation, and cholesterol distribution. Membrane n3-FAs also form specialized pro-resolving mediators and other intracellular oxylipins that modulate inflammatory pathways, including T-cell differentiation and gene expression. Cardiovascular (CV) trials have shown that EPA, administered as icosapent ethyl (IPE), reduces composite CV events, along with plaque volume, in statin-treated, high-risk patients. Mixed EPA/DHA regimens have not shown these benefits, perhaps as the result of differences in formulation, dosage, or potential counter-regulatory actions of DHA. Indeed, EPA and DHA have distinct, tissue-specific effects on membrane structural organization and cell function. This review summarizes: (1) results of clinical outcome and imaging trials using n3-FA formulations; (2) membrane interactions of n3-FAs; (3) effects of n3-FAs on membrane oxidative stress and cholesterol crystalline domain formation during hyperglycemia; (4) n3-FA effects on endothelial function; (5) role of n3-FA-generated metabolites in inflammation; and (6) ongoing and future clinical investigations exploring treatment targets for n3-FAs, including COVID-19.
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Affiliation(s)
- Samuel C R Sherratt
- Department of Molecular, Cellular, and Biomedical Sciences, University of New Hampshire, Durham, NH 03823, USA; Elucida Research LLC, Beverly, MA 01915-0091, USA
| | - Peter Libby
- Department of Medicine, Cardiovascular Division, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115-6110, USA
| | - Deepak L Bhatt
- Department of Medicine, Cardiovascular Division, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115-6110, USA
| | - R Preston Mason
- Department of Medicine, Cardiovascular Division, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115-6110, USA; Elucida Research LLC, Beverly, MA 01915-0091, USA.
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5
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Ala M, Eftekhar SP. The Footprint of Kynurenine Pathway in Cardiovascular Diseases. Int J Tryptophan Res 2022; 15:11786469221096643. [PMID: 35784899 PMCID: PMC9248048 DOI: 10.1177/11786469221096643] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Accepted: 03/28/2022] [Indexed: 12/30/2022] Open
Abstract
Kynurenine pathway is the main route of tryptophan metabolism and produces several metabolites with various biologic properties. It has been uncovered that several cardiovascular diseases are associated with the overactivation of kynurenine pathway and kynurenine and its metabolites have diagnostic and prognostic value in cardiovascular diseases. Furthermore, it was found that several kynurenine metabolites can differently affect cardiovascular health. For instance, preclinical studies have shown that kynurenine, xanthurenic acid and cis-WOOH decrease blood pressure; kynurenine and 3-hydroxyanthranilic acid prevent atherosclerosis; kynurenic acid supplementation and kynurenine 3-monooxygenase (KMO) inhibition improve the outcome of stroke. Indoleamine 2,3-dioxygenase (IDO) overactivity and increased kynurenine levels improve cardiac and vascular transplantation outcomes, whereas exacerbating the outcome of myocardial ischemia, post-ischemic myocardial remodeling, and abdominal aorta aneurysm. IDO inhibition and KMO inhibition are also protective against viral myocarditis. In addition, dysregulation of kynurenine pathway is observed in several conditions such as senescence, depression, diabetes, chronic kidney disease (CKD), cirrhosis, and cancer closely connected to cardiovascular dysfunction. It is worth defining the exact effect of each metabolite of kynurenine pathway on cardiovascular health. This narrative review is the first review that separately discusses the involvement of kynurenine pathway in different cardiovascular diseases and dissects the underlying molecular mechanisms.
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Affiliation(s)
- Moein Ala
- School of Medicine, Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Seyed Parsa Eftekhar
- Student Research Committee, Health Research Center, Babol University of Medical Sciences, Babol, Iran
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6
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Metabolism in atherosclerotic plaques: immunoregulatory mechanisms in the arterial wall. Clin Sci (Lond) 2022; 136:435-454. [PMID: 35348183 PMCID: PMC8965849 DOI: 10.1042/cs20201293] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 03/02/2022] [Accepted: 03/16/2022] [Indexed: 02/05/2023]
Abstract
Over the last decade, there has been a growing interest to understand the link between metabolism and the immune response in the context of metabolic diseases but also beyond, giving then birth to a new field of research. Termed 'immunometabolism', this interdisciplinary field explores paradigms of both immunology and metabolism to provided unique insights into different disease pathogenic processes, and the identification of new potential therapeutic targets. Similar to other inflammatory conditions, the atherosclerotic inflammatory process in the artery has been associated with a local dysregulated metabolic response. Thus, recent studies show that metabolites are more than just fuels in their metabolic pathways, and they can act as modulators of vascular inflammation and atherosclerosis. In this review article, we describe the most common immunometabolic pathways characterised in innate and adaptive immune cells, and discuss how macrophages' and T cells' metabolism may influence phenotypic changes in the plaque. Moreover, we discuss the potential of targeting immunometabolism to prevent and treat cardiovascular diseases (CVDs).
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7
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Role of EPA in Inflammation: Mechanisms, Effects, and Clinical Relevance. Biomolecules 2022; 12:biom12020242. [PMID: 35204743 PMCID: PMC8961629 DOI: 10.3390/biom12020242] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 01/28/2022] [Accepted: 01/31/2022] [Indexed: 02/01/2023] Open
Abstract
Many chronic inflammatory processes are linked with the continuous release of inflammatory mediators and the activation of harmful signal-transduction pathways that are able to facilitate disease progression. In this context atherosclerosis represents the most common pathological substrate of coronary heart disease, and the characterization of the disease as a chronic low-grade inflammatory condition is now validated. The biomarkers of inflammation associated with clinical cardiovascular risk support the theory that targeted anti-inflammatory treatment appears to be a promising strategy in reducing residual cardiovascular risk. Several literature data highlight cardioprotective effects of the long-chain omega-3 polyunsaturated fatty acids (PUFAs), such as eicosapentaenoic acid (EPA). This PUFA lowers plasma triglyceride levels and has potential beneficial effects on atherosclerotic plaques. Preclinical studies reported that EPA reduces both pro-inflammatory cytokines and chemokines levels. Clinical studies in patients with coronary artery disease that receive pharmacological statin therapy suggest that EPA may decrease plaque vulnerability preventing plaque progression. This review aims to provide an overview of the links between inflammation and cardiovascular risk factors, importantly focusing on the role of diet, in particular examining the proposed role of EPA as well as the success or failure of standard pharmacological therapy for cardiovascular diseases.
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8
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Tanaka T, Sasaki N, Rikitake Y. Recent Advances on the Role and Therapeutic Potential of Regulatory T Cells in Atherosclerosis. J Clin Med 2021; 10:5907. [PMID: 34945203 PMCID: PMC8707380 DOI: 10.3390/jcm10245907] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 12/13/2021] [Accepted: 12/13/2021] [Indexed: 12/11/2022] Open
Abstract
Atherosclerotic diseases, including ischemic heart disease and stroke, are a main cause of mortality worldwide. Chronic vascular inflammation via immune dysregulation is critically involved in the pathogenesis of atherosclerosis. Accumulating evidence suggests that regulatory T cells (Tregs), responsible for maintaining immunological tolerance and suppressing excessive immune responses, play an important role in preventing the development and progression of atherosclerosis through the regulation of pathogenic immunoinflammatory responses. Several strategies to prevent and treat atherosclerosis through the promotion of regulatory immune responses have been developed, and could be clinically applied for the treatment of atherosclerotic cardiovascular disease. In this review, we summarize recent advances in our understanding of the protective role of Tregs in atherosclerosis and discuss attractive approaches to treat atherosclerotic disease by augmenting regulatory immune responses.
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Affiliation(s)
- Toru Tanaka
- Laboratory of Medical Pharmaceutics, Kobe Pharmaceutical University, Kobe 658-8558, Japan; (T.T.); (Y.R.)
| | - Naoto Sasaki
- Laboratory of Medical Pharmaceutics, Kobe Pharmaceutical University, Kobe 658-8558, Japan; (T.T.); (Y.R.)
- Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe 658-8558, Japan
| | - Yoshiyuki Rikitake
- Laboratory of Medical Pharmaceutics, Kobe Pharmaceutical University, Kobe 658-8558, Japan; (T.T.); (Y.R.)
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9
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Tryptophan: From Diet to Cardiovascular Diseases. Int J Mol Sci 2021; 22:ijms22189904. [PMID: 34576067 PMCID: PMC8472285 DOI: 10.3390/ijms22189904] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 09/02/2021] [Accepted: 09/11/2021] [Indexed: 12/14/2022] Open
Abstract
Cardiovascular disease (CVD) is one of the major causes of mortality worldwide. Inflammation is the underlying common mechanism involved in CVD. It has been recently related to amino acid metabolism, which acts as a critical regulator of innate and adaptive immune responses. Among different metabolites that have emerged as important regulators of immune and inflammatory responses, tryptophan (Trp) metabolites have been shown to play a pivotal role in CVD. Here, we provide an overview of the fundamental aspects of Trp metabolism and the interplay between the dysregulation of the main actors involved in Trp metabolism such as indoleamine 2, 3-dioxygenase 1 (IDO) and CVD, including atherosclerosis and myocardial infarction. IDO has a prominent and complex role. Its activity, impacting on several biological pathways, complicates our understanding of its function, particularly in CVD, where it is still under debate. The discrepancy of the observed IDO effects could be potentially explained by its specific cell and tissue contribution, encouraging further investigations regarding the role of this enzyme. Thus, improving our understanding of the function of Trp as well as its derived metabolites will help to move one step closer towards tailored therapies aiming to treat CVD.
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10
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Liu Y, Li S, Gao Z, Li S, Tan Q, Li Y, Wang D, Wang Q. Indoleamine 2,3-Dioxygenase 1 (IDO1) Promotes Cardiac Hypertrophy via a PI3K-AKT-mTOR-Dependent Mechanism. Cardiovasc Toxicol 2021; 21:655-668. [PMID: 34021461 PMCID: PMC8211584 DOI: 10.1007/s12012-021-09657-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Accepted: 05/04/2021] [Indexed: 01/25/2023]
Abstract
Indoleamine 2,3-dioxygenase 1 (IDO1) is an enzyme for tryptophan metabolism, involved in immune cell differentiation/maturation and cancer biology. IDO1 is also expressed in cardiomyocytes, but its roles in the cardiovascular system are not fully understood. Here, we reported the functions of IDO1 during cardiac hypertrophy. Quantitative real-time PCR and Western blot experiments demonstrated the upregulation of IDO1 mRNA and protein levels in human and hypertrophic mouse hearts, as well as in angiotensin II (Ang II)-induced hypertrophic rat cardiomyocytes. IDO1 activity and metabolite product kynurenine were upregulated in rodent hypertrophic hearts and cardiomyocytes. Inhibition of IDO1 activity with PF-06840003 reduced Ang II-induced cardiac hypertrophy and rescued cardiac function in mice. siRNA-mediated knockdown of Ido1 repressed Ang II-induced growth in cardiomyocyte size and overexpression of hypertrophy-associated genes atrial natriuretic peptide (Anp or Nppa), brain natriuretic peptide (Bnp or Nppb), β-myosin heavy chain (β-Mhc or Myh7). By contrast, adenovirus-mediated rat Ido1 overexpression in cardiomyocytes promoted hypertrophic growth induced by Ang II. Mechanism analysis showed that IDO1 overexpression was associated with PI3K-AKT-mTOR signaling to activate the ribosomal protein S6 kinase 1 (S6K1), which promoted protein synthesis in Ang II-induced hypertrophy of rat cardiomyocytes. Finally, we provided evidence that inhibition of PI3K with pictilisib, AKT with perifosine, or mTOR with rapamycin, blocked the effects of IDO1 on protein synthesis and cardiomyocyte hypertrophy in Ang II-treated cells. Collectively, our findings identify that IDO1 promotes cardiomyocyte hypertrophy partially via PI3K-AKT-mTOR-S6K1 signaling.
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MESH Headings
- Adult
- Aged
- Animals
- Cardiomegaly/drug therapy
- Cardiomegaly/enzymology
- Cardiomegaly/pathology
- Case-Control Studies
- Cells, Cultured
- Disease Models, Animal
- Female
- Humans
- Indoleamine-Pyrrole 2,3,-Dioxygenase/antagonists & inhibitors
- Indoleamine-Pyrrole 2,3,-Dioxygenase/genetics
- Indoleamine-Pyrrole 2,3,-Dioxygenase/metabolism
- Kynurenine/metabolism
- Male
- Mice
- Middle Aged
- Myocytes, Cardiac/drug effects
- Myocytes, Cardiac/enzymology
- Myocytes, Cardiac/pathology
- Phosphatidylinositol 3-Kinase/metabolism
- Protein Kinase Inhibitors/pharmacology
- Proto-Oncogene Proteins c-akt/antagonists & inhibitors
- Proto-Oncogene Proteins c-akt/metabolism
- Rats, Sprague-Dawley
- Signal Transduction
- TOR Serine-Threonine Kinases/antagonists & inhibitors
- TOR Serine-Threonine Kinases/metabolism
- Rats
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Affiliation(s)
- Yang Liu
- Emergency Department, First Affiliated Hospital of Jiamusi University, Jiamusi, China
| | - Shuang Li
- Emergency Department, First Affiliated Hospital of Jiamusi University, Jiamusi, China
| | - Zhanqun Gao
- Emergency Department, First Affiliated Hospital of Jiamusi University, Jiamusi, China
| | - Shuangjia Li
- Emergency Department, First Affiliated Hospital of Jiamusi University, Jiamusi, China
| | - Qingyun Tan
- Department of Anesthesiology, First Affiliated Hospital of Jiamusi University, Jiamusi, China
| | - Yanmei Li
- Emergency Department, First Affiliated Hospital of Jiamusi University, Jiamusi, China
| | - Dongwei Wang
- Department of Anesthesiology, First Affiliated Hospital of Jiamusi University, Jiamusi, China.
| | - Qingdong Wang
- Department of Anesthesiology, First Affiliated Hospital of Jiamusi University, Jiamusi, China.
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11
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Nelson JR, Budoff MJ, Wani OR, Le V, Patel DK, Nelson A, Nemiroff RL. EPA's pleiotropic mechanisms of action: a narrative review. Postgrad Med 2021; 133:651-664. [PMID: 33900135 DOI: 10.1080/00325481.2021.1921491] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Treatment with icosapent ethyl 4 g/day, a highly purified and stable ethyl ester of eicosapentaenoic acid (EPA), demonstrated a significant reduction in atherosclerotic cardiovascular disease (ASCVD) events and death in REDUCE-IT. However, analyses of REDUCE-IT and meta-analyses have suggested that this clinical benefit is greater than can be achieved by triglyceride reduction alone. EPA therefore may have additional pleiotropic effects, including anti-inflammatory and anti-aggregatory mechanisms. EPA competes with arachidonic acid for cyclooxygenase and lipoxygenase, producing anti-inflammatory and anti-aggregatory metabolites rather than the more deleterious metabolites associated with arachidonic acid. Changing the EPA:arachidonic acid ratio may shift metabolic status from pro-inflammatory/pro-aggregatory to anti-inflammatory/anti-aggregatory. EPA also has antioxidant effects and increases synthesis of nitric oxide. Incorporation of EPA into phospholipid bilayers influences membrane structure and may help to prevent cardiac arrhythmias. Clinically, this may translate into improved vascular health, including regression of atherosclerotic plaque. Overall, EPA has a range of pleiotropic effects that contribute to a reduction in ASCVD.
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Affiliation(s)
- John R Nelson
- California Cardiovascular Institute, Fresno, California, USA
| | - Matthew J Budoff
- Department of Medicine, Lundquist Institute, Torrance, California, USA
| | - Omar R Wani
- Northern Arizona Healthcare Medical Group - Flagstaff, Flagstaff, AZ, USA
| | - Viet Le
- Cardiovascular Research, Intermountain Heart Institute/CV Research, Intermountain Healthcare, Murray, Utah, and Rocky Mountain University of Health Professions, Provo, USA
| | - Dhiren K Patel
- Department of Pharmacy Practice, MCPHS University, Boston, MA, USA
| | - Ashley Nelson
- Department of Internal Medicine, Saint Agnes Medical Center, Fresno, California, USA
| | - Richard L Nemiroff
- Department of Obstetrics and Gynecology, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
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12
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Moss JWE, Williams JO, Al-Ahmadi W, O'Morain V, Chan YH, Hughes TR, Menendez-Gonzalez JB, Almotiri A, Plummer SF, Rodrigues NP, Michael DR, Ramji DP. Protective effects of a unique combination of nutritionally active ingredients on risk factors and gene expression associated with atherosclerosis in C57BL/6J mice fed a high fat diet. Food Funct 2021; 12:3657-3671. [PMID: 33900312 PMCID: PMC8359826 DOI: 10.1039/d0fo02867c] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Atherosclerosis, an inflammatory disorder of the vasculature and the underlying cause of cardiovascular disease, is responsible for one in three global deaths. Consumption of active food ingredients such as omega-3 polyunsaturated fatty acids, flavanols and phytosterols has many beneficial effects on cardiovascular disease. However, their combined actions on the risk factors for atherosclerosis remains poorly understood. We have previously shown that a formulation containing each of these active components at physiologically relevant doses modulated several monocyte/macrophage processes associated with atherosclerosis in vitro, including inhibition of cytokine-induced pro-inflammatory gene expression, chemokine-driven monocyte migration, expression of M1 phenotype markers, and promotion of cholesterol efflux. The objectives of the present study were to investigate whether the protective actions of the formulation extended in vivo and to delineate the potential underlying mechanisms. The formulation produced several favourable changes, including higher plasma levels of HDL and reduced levels of macrophages and myeloid-derived suppressor cells in the bone marrow. The mRNA expression of liver-X-receptor-α, peroxisome proliferator-activated receptor-γ and superoxide dismutase-1 was induced in the liver and that of interferon-γ and the chemokine (C-X-C motif) ligand 1 decreased, thereby suggesting the potential mechanisms for many beneficial effects. Other changes were also observed such as increased plasma levels of triglycerides and lipid peroxidation that may reflect potential activation of brown fat. This study provides new insights into the protective actions and the potential underlying mechanisms of the formulation in vivo, particularly in relation to risk factors together with changes in systemic inflammation and hepatic lipid alterations associated with atherosclerosis and metabolic syndrome, and supports further assessments in human trials.
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Affiliation(s)
- Joe W E Moss
- Cardiff School of Biosciences, Cardiff University, Sir Martin Evans Building, Museum Avenue, Cardiff CF10 3AX, UK.
| | - Jessica O Williams
- Cardiff School of Biosciences, Cardiff University, Sir Martin Evans Building, Museum Avenue, Cardiff CF10 3AX, UK.
| | - Wijdan Al-Ahmadi
- Cardiff School of Biosciences, Cardiff University, Sir Martin Evans Building, Museum Avenue, Cardiff CF10 3AX, UK.
| | - Victoria O'Morain
- Cardiff School of Biosciences, Cardiff University, Sir Martin Evans Building, Museum Avenue, Cardiff CF10 3AX, UK.
| | - Yee-Hung Chan
- Cardiff School of Biosciences, Cardiff University, Sir Martin Evans Building, Museum Avenue, Cardiff CF10 3AX, UK.
| | - Timothy R Hughes
- Systems Immunity Research Institute, School of Medicine, Cardiff University, Cardiff CF14 4XN, UK
| | - Juan B Menendez-Gonzalez
- European Cancer Stem Cell Research Institute, Cardiff School of Biosciences, Cardiff University, Hadyn Ellis Building, Maindy Road, Cardiff CF24 4HQ, UK
| | - Alhomidi Almotiri
- European Cancer Stem Cell Research Institute, Cardiff School of Biosciences, Cardiff University, Hadyn Ellis Building, Maindy Road, Cardiff CF24 4HQ, UK
| | - Sue F Plummer
- Cultech Limited, Unit 2 Christchurch Road, Baglan Industrial Park, Port Talbot, SA12 7BZ, UK
| | - Neil P Rodrigues
- European Cancer Stem Cell Research Institute, Cardiff School of Biosciences, Cardiff University, Hadyn Ellis Building, Maindy Road, Cardiff CF24 4HQ, UK
| | - Daryn R Michael
- Cultech Limited, Unit 2 Christchurch Road, Baglan Industrial Park, Port Talbot, SA12 7BZ, UK
| | - Dipak P Ramji
- Cardiff School of Biosciences, Cardiff University, Sir Martin Evans Building, Museum Avenue, Cardiff CF10 3AX, UK.
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13
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Melhem NJ, Chajadine M, Gomez I, Howangyin KY, Bouvet M, Knosp C, Sun Y, Rouanet M, Laurans L, Cazorla O, Lemitre M, Vilar J, Mallat Z, Tedgui A, Ait-Oufella H, Hulot JS, Callebert J, Launay JM, Fauconnier J, Silvestre JS, Taleb S. Endothelial Cell Indoleamine 2, 3-Dioxygenase 1 Alters Cardiac Function After Myocardial Infarction Through Kynurenine. Circulation 2020; 143:566-580. [PMID: 33272024 DOI: 10.1161/circulationaha.120.050301] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
BACKGROUND Ischemic cardiovascular diseases, particularly acute myocardial infarction (MI), is one of the leading causes of mortality worldwide. Indoleamine 2, 3-dioxygenase 1 (IDO) catalyzes 1 rate-limiting step of L-tryptophan metabolism, and emerges as an important regulator of many pathological conditions. We hypothesized that IDO could play a key role to locally regulate cardiac homeostasis after MI. METHODS Cardiac repair was analyzed in mice harboring specific endothelial or smooth muscle cells or cardiomyocyte or myeloid cell deficiency of IDO and challenged with acute myocardial infarction. RESULTS We show that kynurenine generation through IDO is markedly induced after MI in mice. Total genetic deletion or pharmacological inhibition of IDO limits cardiac injury and cardiac dysfunction after MI. Distinct loss of function of IDO in smooth muscle cells, inflammatory cells, or cardiomyocytes does not affect cardiac function and remodeling in infarcted mice. In sharp contrast, mice harboring endothelial cell-specific deletion of IDO show an improvement of cardiac function as well as cardiomyocyte contractility and reduction in adverse ventricular remodeling. In vivo kynurenine supplementation in IDO-deficient mice abrogates the protective effects of IDO deletion. Kynurenine precipitates cardiomyocyte apoptosis through reactive oxygen species production in an aryl hydrocarbon receptor-dependent mechanism. CONCLUSIONS These data suggest that IDO could constitute a new therapeutic target during acute MI.
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Affiliation(s)
- Nada Joe Melhem
- Université de Paris, Paris-Centre de Recherche Cardiovasculaire (PARCC), Institut National de la Santé et de la Recherche Médicale, France (N.-J.M., M.C., I.G., K.-Y.H., M.B., C.K., Y.S., M.R., L.L., M.L., J.V., Z.M., A.T., H.A.-O., J.-S.H., J.-S.S., S.T.)
| | - Mouna Chajadine
- Université de Paris, Paris-Centre de Recherche Cardiovasculaire (PARCC), Institut National de la Santé et de la Recherche Médicale, France (N.-J.M., M.C., I.G., K.-Y.H., M.B., C.K., Y.S., M.R., L.L., M.L., J.V., Z.M., A.T., H.A.-O., J.-S.H., J.-S.S., S.T.)
| | - Ingrid Gomez
- Université de Paris, Paris-Centre de Recherche Cardiovasculaire (PARCC), Institut National de la Santé et de la Recherche Médicale, France (N.-J.M., M.C., I.G., K.-Y.H., M.B., C.K., Y.S., M.R., L.L., M.L., J.V., Z.M., A.T., H.A.-O., J.-S.H., J.-S.S., S.T.)
| | - Kiave-Yune Howangyin
- Université de Paris, Paris-Centre de Recherche Cardiovasculaire (PARCC), Institut National de la Santé et de la Recherche Médicale, France (N.-J.M., M.C., I.G., K.-Y.H., M.B., C.K., Y.S., M.R., L.L., M.L., J.V., Z.M., A.T., H.A.-O., J.-S.H., J.-S.S., S.T.)
| | - Marion Bouvet
- Université de Paris, Paris-Centre de Recherche Cardiovasculaire (PARCC), Institut National de la Santé et de la Recherche Médicale, France (N.-J.M., M.C., I.G., K.-Y.H., M.B., C.K., Y.S., M.R., L.L., M.L., J.V., Z.M., A.T., H.A.-O., J.-S.H., J.-S.S., S.T.)
| | - Camille Knosp
- Université de Paris, Paris-Centre de Recherche Cardiovasculaire (PARCC), Institut National de la Santé et de la Recherche Médicale, France (N.-J.M., M.C., I.G., K.-Y.H., M.B., C.K., Y.S., M.R., L.L., M.L., J.V., Z.M., A.T., H.A.-O., J.-S.H., J.-S.S., S.T.)
| | - Yanyi Sun
- Université de Paris, Paris-Centre de Recherche Cardiovasculaire (PARCC), Institut National de la Santé et de la Recherche Médicale, France (N.-J.M., M.C., I.G., K.-Y.H., M.B., C.K., Y.S., M.R., L.L., M.L., J.V., Z.M., A.T., H.A.-O., J.-S.H., J.-S.S., S.T.)
| | - Marie Rouanet
- Université de Paris, Paris-Centre de Recherche Cardiovasculaire (PARCC), Institut National de la Santé et de la Recherche Médicale, France (N.-J.M., M.C., I.G., K.-Y.H., M.B., C.K., Y.S., M.R., L.L., M.L., J.V., Z.M., A.T., H.A.-O., J.-S.H., J.-S.S., S.T.)
| | - Ludivine Laurans
- Université de Paris, Paris-Centre de Recherche Cardiovasculaire (PARCC), Institut National de la Santé et de la Recherche Médicale, France (N.-J.M., M.C., I.G., K.-Y.H., M.B., C.K., Y.S., M.R., L.L., M.L., J.V., Z.M., A.T., H.A.-O., J.-S.H., J.-S.S., S.T.)
| | - Olivier Cazorla
- PHYSIOLOGIE ET MÉDECINE EXPÉRIMENTALE DU COEUR ET DES MUSCLES (PHYMEDEXP), Institut national de la santé et de la Recherche Médicale (INSERM), Centre National de la Recherche Scientifique (CNRS), Université de Montpellier, Centre Hospitalier Régional Universitaire (CHRU) Montpellier, France (O.C., J.F.)
| | - Mathilde Lemitre
- Université de Paris, Paris-Centre de Recherche Cardiovasculaire (PARCC), Institut National de la Santé et de la Recherche Médicale, France (N.-J.M., M.C., I.G., K.-Y.H., M.B., C.K., Y.S., M.R., L.L., M.L., J.V., Z.M., A.T., H.A.-O., J.-S.H., J.-S.S., S.T.)
| | - José Vilar
- Université de Paris, Paris-Centre de Recherche Cardiovasculaire (PARCC), Institut National de la Santé et de la Recherche Médicale, France (N.-J.M., M.C., I.G., K.-Y.H., M.B., C.K., Y.S., M.R., L.L., M.L., J.V., Z.M., A.T., H.A.-O., J.-S.H., J.-S.S., S.T.)
| | - Ziad Mallat
- Université de Paris, Paris-Centre de Recherche Cardiovasculaire (PARCC), Institut National de la Santé et de la Recherche Médicale, France (N.-J.M., M.C., I.G., K.-Y.H., M.B., C.K., Y.S., M.R., L.L., M.L., J.V., Z.M., A.T., H.A.-O., J.-S.H., J.-S.S., S.T.).,Division of Cardiovascular Medicine, University of Cambridge, Addenbrooke's Hospital, United Kingdom (Z.M.)
| | - Alain Tedgui
- Université de Paris, Paris-Centre de Recherche Cardiovasculaire (PARCC), Institut National de la Santé et de la Recherche Médicale, France (N.-J.M., M.C., I.G., K.-Y.H., M.B., C.K., Y.S., M.R., L.L., M.L., J.V., Z.M., A.T., H.A.-O., J.-S.H., J.-S.S., S.T.)
| | - Hafid Ait-Oufella
- Université de Paris, Paris-Centre de Recherche Cardiovasculaire (PARCC), Institut National de la Santé et de la Recherche Médicale, France (N.-J.M., M.C., I.G., K.-Y.H., M.B., C.K., Y.S., M.R., L.L., M.L., J.V., Z.M., A.T., H.A.-O., J.-S.H., J.-S.S., S.T.)
| | - Jean-Sébastien Hulot
- Université de Paris, Paris-Centre de Recherche Cardiovasculaire (PARCC), Institut National de la Santé et de la Recherche Médicale, France (N.-J.M., M.C., I.G., K.-Y.H., M.B., C.K., Y.S., M.R., L.L., M.L., J.V., Z.M., A.T., H.A.-O., J.-S.H., J.-S.S., S.T.)
| | - Jacques Callebert
- Service de Biochimie, Assistance Publique Hôpitaux de Paris, and Institut National de la Santé et de la Recherche Médicale UMR942, Hôpital Lariboisière, France (J.C., J.-M.L.)
| | - Jean-Marie Launay
- Service de Biochimie, Assistance Publique Hôpitaux de Paris, and Institut National de la Santé et de la Recherche Médicale UMR942, Hôpital Lariboisière, France (J.C., J.-M.L.)
| | - Jeremy Fauconnier
- PHYSIOLOGIE ET MÉDECINE EXPÉRIMENTALE DU COEUR ET DES MUSCLES (PHYMEDEXP), Institut national de la santé et de la Recherche Médicale (INSERM), Centre National de la Recherche Scientifique (CNRS), Université de Montpellier, Centre Hospitalier Régional Universitaire (CHRU) Montpellier, France (O.C., J.F.)
| | - Jean-Sébastien Silvestre
- Université de Paris, Paris-Centre de Recherche Cardiovasculaire (PARCC), Institut National de la Santé et de la Recherche Médicale, France (N.-J.M., M.C., I.G., K.-Y.H., M.B., C.K., Y.S., M.R., L.L., M.L., J.V., Z.M., A.T., H.A.-O., J.-S.H., J.-S.S., S.T.)
| | - Soraya Taleb
- Université de Paris, Paris-Centre de Recherche Cardiovasculaire (PARCC), Institut National de la Santé et de la Recherche Médicale, France (N.-J.M., M.C., I.G., K.-Y.H., M.B., C.K., Y.S., M.R., L.L., M.L., J.V., Z.M., A.T., H.A.-O., J.-S.H., J.-S.S., S.T.)
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14
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Zaric BL, Radovanovic JN, Gluvic Z, Stewart AJ, Essack M, Motwalli O, Gojobori T, Isenovic ER. Atherosclerosis Linked to Aberrant Amino Acid Metabolism and Immunosuppressive Amino Acid Catabolizing Enzymes. Front Immunol 2020; 11:551758. [PMID: 33117340 PMCID: PMC7549398 DOI: 10.3389/fimmu.2020.551758] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 08/25/2020] [Indexed: 02/05/2023] Open
Abstract
Cardiovascular disease is the leading global health concern and responsible for more deaths worldwide than any other type of disorder. Atherosclerosis is a chronic inflammatory disease in the arterial wall, which underpins several types of cardiovascular disease. It has emerged that a strong relationship exists between alterations in amino acid (AA) metabolism and the development of atherosclerosis. Recent studies have reported positive correlations between levels of branched-chain amino acids (BCAAs) such as leucine, valine, and isoleucine in plasma and the occurrence of metabolic disturbances. Elevated serum levels of BCAAs indicate a high cardiometabolic risk. Thus, BCAAs may also impact atherosclerosis prevention and offer a novel therapeutic strategy for specific individuals at risk of coronary events. The metabolism of AAs, such as L-arginine, homoarginine, and L-tryptophan, is recognized as a critical regulator of vascular homeostasis. Dietary intake of homoarginine, taurine, and glycine can improve atherosclerosis by endothelium remodeling. Available data also suggest that the regulation of AA metabolism by indoleamine 2,3-dioxygenase (IDO) and arginases 1 and 2 are mediated through various immunological signals and that immunosuppressive AA metabolizing enzymes are promising therapeutic targets against atherosclerosis. Further clinical studies and basic studies that make use of animal models are required. Here we review recent data examining links between AA metabolism and the development of atherosclerosis.
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Affiliation(s)
- Bozidarka L. Zaric
- Department of Radiobiology and Molecular Genetics, “VINČA” Institute of Nuclear Sciences - National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Jelena N. Radovanovic
- Department of Radiobiology and Molecular Genetics, “VINČA” Institute of Nuclear Sciences - National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Zoran Gluvic
- Department of Endocrinology and Diabetes, Faculty of Medicine, University Clinical-Hospital Centre Zemun-Belgrade, University of Belgrade, Belgrade, Serbia
| | - Alan J. Stewart
- School of Medicine, University of St Andrews, St Andrews, United Kingdom
| | - Magbubah Essack
- Computer, Electrical and Mathematical Sciences and Engineering Division (CEMSE), Computational Bioscience Research Center, Computer (CBRC), King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
| | - Olaa Motwalli
- College of Computing and Informatics, Saudi Electronic University (SEU), Medina, Saudi Arabia
| | - Takashi Gojobori
- Computer, Electrical and Mathematical Sciences and Engineering Division (CEMSE), Computational Bioscience Research Center, Computer (CBRC), King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
- Biological and Environmental Sciences and Engineering Division (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
| | - Esma R. Isenovic
- Department of Radiobiology and Molecular Genetics, “VINČA” Institute of Nuclear Sciences - National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia
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15
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Saito Y, Nakamura K, Ito H. Effects of Eicosapentaenoic Acid on Arterial Calcification. Int J Mol Sci 2020; 21:ijms21155455. [PMID: 32751754 PMCID: PMC7432365 DOI: 10.3390/ijms21155455] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 07/27/2020] [Accepted: 07/27/2020] [Indexed: 12/26/2022] Open
Abstract
Arterial calcification is a hallmark of advanced atherosclerosis and predicts cardiovascular events. However, there is no clinically accepted therapy that prevents progression of arterial calcification. HMG-CoA reductase inhibitors, statins, lower low-density lipoprotein-cholesterol and reduce cardiovascular events, but coronary artery calcification is actually promoted by statins. The addition of eicosapentaenoic acid (EPA) to statins further reduced cardiovascular events in clinical trials, JELIS and REDUCE-IT. Additionally, we found that EPA significantly suppressed arterial calcification in vitro and in vivo via suppression of inflammatory responses, oxidative stress and Wnt signaling. However, so far there is a lack of evidence showing the effect of EPA on arterial calcification in a clinical situation. We reviewed the molecular mechanisms of the inhibitory effect of EPA on arterial calcification and the results of some clinical trials.
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16
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Ketelhuth DFJ. The immunometabolic role of indoleamine 2,3-dioxygenase in atherosclerotic cardiovascular disease: immune homeostatic mechanisms in the artery wall. Cardiovasc Res 2020; 115:1408-1415. [PMID: 30847484 DOI: 10.1093/cvr/cvz067] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2018] [Revised: 01/30/2019] [Accepted: 03/05/2019] [Indexed: 01/05/2023] Open
Abstract
Coronary heart disease and stroke, the two most common cardiovascular diseases worldwide, are triggered by complications of atherosclerosis. Atherosclerotic plaques are initiated by a maladaptive immune response triggered by accumulation of lipids in the artery wall. Hence, disease is influenced by several non-modifiable and modifiable risk factors, including dyslipidaemia, hypertension, smoking, and diabetes. Indoleamine 2,3-dioxygenase (IDO), the rate-limiting enzyme in the kynurenine pathway of tryptophan (Trp) degradation, is modulated by inflammation and regarded as a key molecule driving immunotolerance and immunosuppressive mechanisms. A large body of evidence indicates that IDO-mediated Trp metabolism is involved directly or indirectly in atherogenesis. This review summarizes evidence from basic and clinical research showing that IDO is a major regulatory enzyme involved in the maintenance of immunohomeostasis in the vascular wall, as well as current knowledge about promising targets for the development of new anti-atherosclerotic drugs.
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Affiliation(s)
- Daniel F J Ketelhuth
- Cardiovascular Medicine Unit, Center for Molecular Medicine, Department of Medicine, Karolinska Institute, Karolinska University Hospital, Stockholm, Sweden.,Department of Cardiovascular and Renal Research, Institute of Molecular Medicine, Univ. of Southern Denmark, J. B. Winsløws Vej 21(3), Odense C, Denmark
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17
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Haybar H, Maleki Behzad M, Shahrabi S, Ansari N, Saki N. Expression of Blood Cells Associated CD Markers and Cardiovascular Diseases: Clinical Applications in Prognosis. Lab Med 2020; 51:122-142. [PMID: 31340048 DOI: 10.1093/labmed/lmz049] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Cardiovascular diseases (CVDs) are a major cause of mortality worldwide. The results of various studies have shown that abnormality in the frequency and function of blood cells can be involved in CVD complications. In this review, we have focused on abnormalities in the expression of the CD (cluster of differentiation) markers of blood cells to assess the association of these abnormalities with CVD prognosis. METHODS We identified the relevant literature through a PubMed search (1990-2018) of English-language articles using the terms "Cardiovascular diseases", "CD markers", "leukocytes", "platelets", and "endothelial cells". RESULTS There is a variety of mechanisms for the effect of CD-marker expressions on CVDs prognosis, ranging from proinflammatory processes to dysfunctional effects in blood cells. CONCLUSION Considering the possible effects of CD-marker expression on CVDs prognosis, particularly prognosis of acute myocardial infarction and atherosclerosis, long-term studies in large cohorts are required to identify the prognostic value of CD markers and to target them with appropriate therapeutic agents.
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Affiliation(s)
- Habib Haybar
- Atherosclerosis Research Center, Health Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Masumeh Maleki Behzad
- Thalassemia and Hemoglobinopathy Research Center, Health Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Saeid Shahrabi
- Department of Biochemistry and Hematology, Faculty of Medicine, Semnan University of Medical Sciences, Semnan, Iran
| | - Narges Ansari
- Isfahan Bone Metabolic Disorders Research Center, Department of Internal Medicine, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Najmaldin Saki
- Thalassemia and Hemoglobinopathy Research Center, Health Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
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18
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Švajger U, Rožman PJ. Recent discoveries in dendritic cell tolerance-inducing pharmacological molecules. Int Immunopharmacol 2020; 81:106275. [PMID: 32044665 DOI: 10.1016/j.intimp.2020.106275] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 01/31/2020] [Accepted: 01/31/2020] [Indexed: 01/04/2023]
Abstract
Dendritic cells (DCs) represent one of the most important biological tools for cellular immunotherapy purposes. There are an increasing number of phase I and II studies, where regulatory or tolerogenic DCs (TolDCs) are utilized as negative vaccines, with the aim of inducing tolerogenic outcomes in patients with various autoimmune or chronic-inflammatory diseases, as well as in transplant settings. The induction of tolerogenic properties in DCs can be achieved by altering their activation state toward expression of immunosuppressive elements and/or by achieving resistance to maturation, which leads to insufficient co-stimulatory signal delivery and inability to efficiently present antigens. In the past, one of the most efficient ways to induce DC tolerance has been the application of selected pharmacological agents which actively induce a tolerogenic transcription program or inhibit major pro-inflammatory transcription factors such as Nf-κB. Important examples include immunosuppressants such as different corticosteroids, vitamin D3, rapamycin and others. The quality of TolDCs induced by different approaches is becoming a vital issue and recent evidence suggests substantial heterogeneity between variously-generated TolDCs as evidenced by their transcriptomic profile and function. The possibility of various "flavors" of TolDCs encourages future research in discovery of Tol-DC inducing agents to enrich various ways of DC manipulation. This would enable a broader range of tools to manipulate DC toward specific characteristics desirable in different disease settings. In recent years, several novel small molecules have been identified with the capacity to promote DC tolerogenic characteristics. In this review, we will present and discuss these novel findings and also highlight novel understandings of tolerogenic mechanisms by which DC tolerogenicity is induced by already established agents.
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Affiliation(s)
- Urban Švajger
- Blood Transfusion Center of Slovenia, Šlajmerjeva 6, 1000 Ljubljana, Slovenia.
| | - Primož J Rožman
- Blood Transfusion Center of Slovenia, Šlajmerjeva 6, 1000 Ljubljana, Slovenia
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19
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Sekikawa A, Cui C, Sugiyama D, Fabio A, Harris WS, Zhang X. Effect of High-Dose Marine Omega-3 Fatty Acids on Atherosclerosis: A Systematic Review and Meta-Analysis of Randomized Clinical Trials. Nutrients 2019; 11:nu11112599. [PMID: 31671524 PMCID: PMC6893789 DOI: 10.3390/nu11112599] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Revised: 10/23/2019] [Accepted: 10/25/2019] [Indexed: 12/13/2022] Open
Abstract
A recent randomized controlled trial (RCT), the Reduction of Cardiovascular Events with Icosapent Ethyl-Intervention Trial (REDUCE-IT), reported that high-dose marine omega-3 fatty acids (OM3) significantly reduce cardiovascular disease (CVD) outcomes, yet the mechanisms responsible for this benefit remain unknown. To test the hypothesis that high-dose OM3 is anti-atherosclerotic, we performed a systematic review and meta-analysis of RCT of high-dose OM3 on atherosclerosis. The protocol of this systematic review was registered with PROSPERO (CRD42019125566). PubMed, Embase, Cochran Central Register for Controlled Trials, and Clinicaltrials.gov databases were searched using the following criteria: adult participants, high-dose OM3 (defined as ≥3.0 g/day, or in Japan 1.8 g/day and purity ≥90%) as the intervention, changes in atherosclerosis as the outcome, and RCTs with an intervention duration of ≥6 months. A random-effects meta-analysis was used to pool estimates across studies. Among the 598 articles retrieved, six articles met our criteria. Four RCTs evaluated atherosclerosis in the coronary and two in the carotid arteries. High-dose OM3 significantly slowed the progression of atherosclerosis (standardized mean difference −1.97, 95% confidence interval −3.01, −0.94, p < 0.001). The results indicate that anti-atherosclerotic effect of high-dose OM3 is one potential mechanism in reducing CVD outcomes demonstrated in the REDUCE-IT trial.
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Affiliation(s)
- Akira Sekikawa
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA 15213, USA.
| | - Chendi Cui
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA 15213, USA.
| | - Daisuke Sugiyama
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA 15213, USA.
- Faculty of Nursing and Medical Care, Keio University, 4411 Endo, Fujisawa, 252-0883 Kanagawa, Japan.
| | - Anthony Fabio
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA 15213, USA.
| | - William S Harris
- OmegaQuant Analytics, LLC and Sanford School of Medicine, University of South Dakota, Sioux Falls, SD 57106, USA.
| | - Xiao Zhang
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA 15213, USA.
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20
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Taleb S. Tryptophan Dietary Impacts Gut Barrier and Metabolic Diseases. Front Immunol 2019; 10:2113. [PMID: 31552046 PMCID: PMC6746884 DOI: 10.3389/fimmu.2019.02113] [Citation(s) in RCA: 127] [Impact Index Per Article: 25.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Accepted: 08/21/2019] [Indexed: 12/13/2022] Open
Abstract
The intestine has a major role in the digestion and absorption of nutrients, and gut barrier is the first defense line against harmful pathogens. Alteration of the intestinal barrier is associated with enhanced intestinal permeability and development of numerous pathological diseases including gastrointestinal and cardiometabolic diseases. Among the metabolites that play an important role within intestinal health, L Tryptophan (Trp) is one of the nine essential amino acids supplied by diet, whose metabolism appears as a key modulator of gut microbiota, with major impacts on physiological, and pathological pathways. Recently, emerging evidence showed that the Trp catabolism through one major enzyme indoleamine 2,3-dioxygenase 1 (IDO1) expressed by the host affects Trp metabolism by gut microbiota to generate indole metabolites, thereby altering gut function and health in mice and humans. In this mini review, I summarize the most recent advances concerning the role of Trp metabolism in host–microbiota cross-talk in health, and metabolic diseases. This novel aspect of IDO1 function in intestine will better explain its complex roles in a broad range of disease states where the gut function affects local as well as systemic health, and will open new therapeutic strategies.
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Affiliation(s)
- Soraya Taleb
- Institut National de la Santé et de la Recherche Médicale (INSERM), Unit 970, Paris Cardiovascular Research Center, and Université Paris-Descartes, Paris, France
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21
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Yang CJ, Kuo CT, Wu LH, Chen MC, Pangilinan CR, Phacharapiyangkul N, Liu W, Chen YH, Lee CH. Eicosapentaenoic acids enhance chemosensitivity through connexin 43 upregulation in murine melanoma models. Int J Med Sci 2019; 16:636-643. [PMID: 31217730 PMCID: PMC6566740 DOI: 10.7150/ijms.30889] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Accepted: 03/29/2019] [Indexed: 12/19/2022] Open
Abstract
Chemotherapy is now in common use for the treatment of tumors; however, with tumor growth retardation comes the severe side effects that occur after a chemotherapy cycle. Eicosapentaenoic acids (EPA) used in combination with chemotherapy has an additive effects and provides a rationale for using EPA in tandem with chemotherapy. To improve the efficacy and safety of this combination therapy, a further understanding that EPA modulates with the tumor microenvironment is necessary. Connexin 43 (Cx43) is involved in enhancing chemosensitivity that was suppressed in a tumor microenvironment. We aim to investigate the role of EPA in chemosensitivity in murine melanoma by inducing Cx43 expression. The dose-dependent upregulation of Cx43 expression and gap junction intercellular communication were observed in B16F10 cells after EPA treatment. Furthermore, EPA significantly increased the expression levels of mitogen-activated protein kinases (MAPK) signaling pathways. The EPA-induced Cx43 expression was reduced after MAPK inhibitors. Knockdown Cx43 in B16F10 cells reduced the therapeutic effects of combination therapy (EPA plus 5-Fluorouracil). Our results demonstrate that the treatment of EPA is a tumor induced Cx43 gap junction communication and enhances the combination of EPA and chemotherapeutic effects.
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Affiliation(s)
- Chih-Jen Yang
- Department of Internal Medicine, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,Faculty of Medicine, Department of Respiratory Therapy, College of Medicine, Kaohsiung Medical University, Taiwan
| | - Chi-Te Kuo
- Department of Microbiology and Immunology, National Cheng Kung University Medical College, Tainan, Taiwan
| | - Li-Hsien Wu
- Department of Biological Sciences, National Sun Yat-sen University, Kaohsiung, Taiwan
| | - Man-Chin Chen
- Department of Biological Sciences, National Sun Yat-sen University, Kaohsiung, Taiwan
| | | | | | - Wangta Liu
- Department of Biotechnology, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Ya-Huey Chen
- Graduate Institute of Biomedical Sciences, College of Medicine, China Medical University, Taichung, Taiwan.,Center for Molecular Medicine, China Medical University Hospital, Taichung, Taiwan
| | - Che-Hsin Lee
- Department of Biological Sciences, National Sun Yat-sen University, Kaohsiung, Taiwan.,Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan
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22
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Ramji DP. Polyunsaturated Fatty Acids and Atherosclerosis: Insights from Pre-Clinical Studies. EUR J LIPID SCI TECH 2018. [DOI: 10.1002/ejlt.201800029] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Dipak P. Ramji
- Cardiff School of Biosciences, Cardiff University; Sir Martin Evans Building, Museum Avenue Cardiff CF10 3AX United Kingdom
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23
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Moss JWE, Williams JO, Ramji DP. Nutraceuticals as therapeutic agents for atherosclerosis. Biochim Biophys Acta Mol Basis Dis 2018; 1864:1562-1572. [PMID: 29454074 PMCID: PMC5906642 DOI: 10.1016/j.bbadis.2018.02.006] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 02/06/2018] [Accepted: 02/12/2018] [Indexed: 02/07/2023]
Abstract
Atherosclerosis, a chronic inflammatory disorder of medium and large arteries and an underlying cause of cardiovascular disease (CVD), is responsible for a third of all global deaths. Current treatments for CVD, such as optimized statin therapy, are associated with considerable residual risk and several side effects in some patients. The outcome of research on the identification of alternative pharmaceutical agents for the treatment of CVD has been relatively disappointing with many promising leads failing at the clinical level. Nutraceuticals, products from food sources with health benefits beyond their nutritional value, represent promising agents in the prevention of CVD or as an add-on therapy with current treatments. This review will highlight the potential of several nutraceuticals, including polyunsaturated fatty acids, flavonoids and other polyphenols, as anti-CVD therapies based on clinical and pre-clinical mechanism-based studies.
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Affiliation(s)
- Joe W E Moss
- Cardiff School of Biosciences, Cardiff University, Sir Martin Evans Building, Museum Avenue, Cardiff CF10 3AX, UK
| | - Jessica O Williams
- Cardiff School of Biosciences, Cardiff University, Sir Martin Evans Building, Museum Avenue, Cardiff CF10 3AX, UK
| | - Dipak P Ramji
- Cardiff School of Biosciences, Cardiff University, Sir Martin Evans Building, Museum Avenue, Cardiff CF10 3AX, UK.
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24
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Wang CC, Yang CJ, Wu LH, Lin HC, Wen ZH, Lee CH. Eicosapentaenoic acid reduces indoleamine 2,3-dioxygenase 1 expression in tumor cells. Int J Med Sci 2018; 15:1296-1303. [PMID: 30275755 PMCID: PMC6158658 DOI: 10.7150/ijms.27326] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Accepted: 07/26/2018] [Indexed: 01/19/2023] Open
Abstract
Marine plants and animals have omega-3 fatty acids including eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA). EPA is required for biological processes, but humans are unable to synthesize them and must be obtained from dietary sources. EPA has been used as an antitumor agent but the molecular mechanisms for the regulation of tumor microenvironment immunity by EPA are still unknown. The indoleamine 2,3-dioxygenase 1 (IDO) catalyzes conversion of tryptophan to kynurenine to induce immune evasion in tumor microenvironment. In this study, EPA inhibited the expression of IDO via downregulation of protein kinase B (Akt)/mammalian targets of rapamycin (mTOR) signaling pathway in tumor cells. Meanwhile, a significant decrease in kynurenine levels and increase in T cell survival were observed after tumor cells treated with EPA. The results demonstrated that EPA can activate host antitumor immunity by inhibiting tumor IDO expression. Therefore, our finding suggests that EPA can be enormous potential for cancer immunotherapy.
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Affiliation(s)
- Chih-Chiang Wang
- Division of Nephrology, Department of Internal Medicine, Kaohsiung Armed Forces General Hospital, Kaohsiung, Taiwan
| | - Chih-Jen Yang
- Department of Internal Medicine, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,Faculty of Medicine, Department of Respiratory Therapy, College of Medicine, Kaohsiung Medical University, Taiwan
| | - Li-Hsien Wu
- Department of Public Health, China Medical University, Taichung, Taiwan
| | - Han-Chen Lin
- Department of Anatomy, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Zhi-Hong Wen
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung, Taiwan
| | - Che-Hsin Lee
- Department of Biological Sciences, National Sun Yat-sen University, Kaohsiung, Taiwan.,Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan
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25
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Polyzos KA, Ketelhuth DFJ. The role of the kynurenine pathway of tryptophan metabolism in cardiovascular disease. Hamostaseologie 2017; 35:128-36. [DOI: 10.5482/hamo-14-10-0052] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Accepted: 12/18/2014] [Indexed: 12/14/2022] Open
Abstract
SummaryCoronary heart disease and stroke, the deadliest forms of cardiovascular disease (CVD), are mainly caused by atherosclerosis, a chronic inflammatory disease of the artery wall driven by maladaptive immune responses in the vessel wall. Various risk factors for CVD influence this pathogenic process, including diabetes mellitus, hypertension, dyslipidaemia, and obesity. Indoleamine 2,3-dioxygenase (IDO), an enzyme catalyzing the rate-limiting step in the kynurenine pathway of tryptophan degradation, is strongly induced by inflammation in several tissues, including the artery wall. An increasing body of evidence indicates that IDO promotes immune tolerance, decreases inflammation, and functions as a homeostatic mechanism against excessive immune reactions.This review provides an overview of the emerging field of the kynurenine pathway of tryptophan degradation in CVD, emphasizing the role of IDO-mediated tryptophan metabolism and its metabolites in the modulation of ‘classical’ cardiovascular risk factors, such as hypertension, obesity, lipid metabolism, diabetes mellitus, and in the development of atherosclerotic CVD.
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26
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Brito V, Mellal K, Zoccal KF, Soto Y, Ménard L, Sarduy R, Faccioli LH, Ong H, Vázquez AM, Marleau S. Atheroregressive Potential of the Treatment with a Chimeric Monoclonal Antibody against Sulfated Glycosaminoglycans on Pre-existing Lesions in Apolipoprotein E-Deficient Mice. Front Pharmacol 2017; 8:782. [PMID: 29163168 PMCID: PMC5672559 DOI: 10.3389/fphar.2017.00782] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Accepted: 10/16/2017] [Indexed: 02/02/2023] Open
Abstract
The retention of lipoprotein particles in the intima, in particular to glycosaminoglycan side chains of proteoglycans, is a critical step in atherosclerosis initiation. Administration of chP3R99, a chimeric mouse/human monoclonal antibody inducing an anti-idiotypic network response against glycosaminoglycans was previously shown to prevent atherosclerotic lesion progression, yet its effect in the late-stage progression of lesions remains unknown. This study investigated the effect of chP3R99 at a late stage of disease development in apolipoprotein E-deficient mice and the vascular mechanisms involved. Male apolipoprotein E-deficient mice were fed a high-fat high-cholesterol diet from 4 to 19 weeks old, at which time mice were fed normal chow and 5 doses of chP3R99 (50 μg) or isotype-matched IgG (hR3) were administered subcutaneously weekly for the first 3 administrations, then at weeks 24 and 26 before sacrifice (week 28). Lesions progression was reduced by 88% in treated mice with no change in total plasma cholesterol levels, yet with increased sera reactivity to chP3R99 idiotype and heparin, suggesting the induction of an anti-idiotype antibody cascade against glycosaminoglycans, which was likely related with the atheroprotective effect. chP3R99 treatment initiated regression in a significant number of mice. Circulating levels of interleukin-6 were reduced along with a striking diminution of inflammatory cell accumulation in the vessel wall, and of VCAM-1 labeling in vivo. The ratio of IL-10/iNOS gene expression in aortas increased in chP3R99-treated mice. In conclusion, our results show that treatment with chP3R99 reduces vascular inflammatory burden and halts lesion progression with potential for regression in the late phase of the disease in atherosclerotic mice, and support the therapeutic intervention against glycosaminoglycans as a novel strategy to reverse atherosclerosis.
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Affiliation(s)
- Victor Brito
- Faculté de Pharmacie, Université de Montréal, Montréal, QC, Canada.,Division of Immunobiology, Center of Molecular Immunology, Havana, Cuba
| | - Katia Mellal
- Faculté de Pharmacie, Université de Montréal, Montréal, QC, Canada
| | - Karina F Zoccal
- Faculté de Pharmacie, Université de Montréal, Montréal, QC, Canada.,Department of Clinical Analysis, Toxicology and Bromatology, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Yosdel Soto
- Faculté de Pharmacie, Université de Montréal, Montréal, QC, Canada.,Division of Immunobiology, Center of Molecular Immunology, Havana, Cuba
| | - Liliane Ménard
- Faculté de Pharmacie, Université de Montréal, Montréal, QC, Canada
| | - Roger Sarduy
- Division of Immunobiology, Center of Molecular Immunology, Havana, Cuba
| | - Lucia H Faccioli
- Department of Clinical Analysis, Toxicology and Bromatology, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Huy Ong
- Faculté de Pharmacie, Université de Montréal, Montréal, QC, Canada
| | - Ana M Vázquez
- Division of Immunobiology, Center of Molecular Immunology, Havana, Cuba
| | - Sylvie Marleau
- Faculté de Pharmacie, Université de Montréal, Montréal, QC, Canada
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27
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Nelson JR, True WS, Le V, Mason RP. Can pleiotropic effects of eicosapentaenoic acid (EPA) impact residual cardiovascular risk? Postgrad Med 2017; 129:822-827. [DOI: 10.1080/00325481.2017.1385365] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
| | | | - Viet Le
- Intermountain Medical Center, Murray, UT, USA
| | - R. Preston Mason
- Department of Medicine, Cardiovascular Division, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
- Elucida Research, Beverly, MA, USA
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28
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Baumgartner R, Forteza MJ, Ketelhuth DFJ. The interplay between cytokines and the Kynurenine pathway in inflammation and atherosclerosis. Cytokine 2017; 122:154148. [PMID: 28899580 DOI: 10.1016/j.cyto.2017.09.004] [Citation(s) in RCA: 92] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Revised: 09/01/2017] [Accepted: 09/02/2017] [Indexed: 12/20/2022]
Abstract
The kynurenine pathway (KP) is the major metabolic route of tryptophan (Trp) metabolism. Indoleamine 2,3-dioxygenase (IDO1), the enzyme responsible for the first and rate-limiting step in the pathway, as well as other enzymes in the pathway, have been shown to be highly regulated by cytokines. Hence, the KP has been implicated in several pathologic conditions, including infectious diseases, psychiatric disorders, malignancies, and autoimmune and chronic inflammatory diseases. Additionally, recent studies have linked the KP with atherosclerosis, suggesting that Trp metabolism could play an essential role in the maintenance of immune homeostasis in the vascular wall. This review summarizes experimental and clinical evidence of the interplay between cytokines and the KP and the potential role of the KP in cardiovascular diseases.
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Affiliation(s)
- Roland Baumgartner
- Cardiovascular Medicine Unit, Center for Molecular Medicine, Department of Medicine, Karolinska Institute and Karolinska University Hospital, SE-17176 Stockholm, Sweden.
| | - Maria J Forteza
- Cardiovascular Medicine Unit, Center for Molecular Medicine, Department of Medicine, Karolinska Institute and Karolinska University Hospital, SE-17176 Stockholm, Sweden
| | - Daniel F J Ketelhuth
- Cardiovascular Medicine Unit, Center for Molecular Medicine, Department of Medicine, Karolinska Institute and Karolinska University Hospital, SE-17176 Stockholm, Sweden
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29
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Tsuchiya T, Endo A, Tsujikado K, Inukai T. Involvement of Resveratrol and ω-3 Polyunsaturated Fatty Acids on Sirtuin 1 Gene Expression in THP1 Cells. Am J Med Sci 2017; 354:415-422. [PMID: 29078847 DOI: 10.1016/j.amjms.2017.06.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Revised: 05/02/2017] [Accepted: 06/07/2017] [Indexed: 12/20/2022]
Abstract
BACKGROUND Resveratrol, a kind of polyphenol, has the potential to activate the longevity gene in several cells, in the same manner as calorie restriction. We investigated the effect of resveratrol and ω-3-line polyunsaturated fatty acid on surtuin 1 (SIRT1) gene expression in human monocytes (THP1) cells. MATERIALS AND METHODS We examined the gene expression of THP1 cells using real-time polymerase chain reaction and Western blotting analysis. Resveratol, eicosapentaenoic acid (EPA) and docosahexaeanoic acid (DHA) as n-3 polyunsaturated fatty acid were added on THP1 cells. We observed the changes in the SIRT1 gene expression in those cells, under various doses of agents and in time courses. Then, we examined the interaction of glucose and mannitol on those agents׳ effect of the gene expression. The concentration range of glucose and mannitol was from 5-20mM, respectively. RESULTS The SIRT1 gene expression could be defined in 24 and 48 hours both in real-time polymerase chain reaction analysis and in Western blotting. Resveratrol showed SIRT1 gene expression in a dose-dependent manner in the range of 0-20μM in both analyses. Although EPA at 10μM showed marked increase in SIRT1 gene expression compared to control condition in Western blotting, this phenomenon was not in dose-dependent manner. DHA did not exhibit any augmentation of SIRT1 gene expression in a dose-dependent manner in the range of 0-20μM in both analyses. We refined the dose-dependent inhibition of the SIRT1 gene expression within 20mM glucose medium. Although 20mM did not exhibit any inhibition, 10μM resveratrol induced the gene expression compared to control medium. Both 5 and 15mM mannitol medium did not significantly alter basic gene expression and 10μM resveratrol-induced gene expression. CONCLUSIONS The present results suggest that resveratrol and EPA, but not DHA, markedly activated the SIRT1 gene expression in THP1 cells, and that high glucose medium could inhibit the basic gene expression, but not powerful resveratrol-induced gene expression, in those cells.
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Affiliation(s)
- Takafumi Tsuchiya
- Department of Internal Medicine, Koshigaya Hospital, Dokkyo Medical University, Koshigaya, Japan
| | - Ayano Endo
- Department of Joint Research Center, Koshigaya Hospital, Dokkyo Medical University, Koshigaya, Japan
| | - Kyoko Tsujikado
- Department of Joint Research Center, Koshigaya Hospital, Dokkyo Medical University, Koshigaya, Japan
| | - Toshihiko Inukai
- Department of Internal Medicine, Koshigaya Hospital, Dokkyo Medical University, Koshigaya, Japan.
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30
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Nelson J, Wani O, May H, Budoff M. Potential benefits of eicosapentaenoic acid on atherosclerotic plaques. Vascul Pharmacol 2017; 91:1-9. [DOI: 10.1016/j.vph.2017.02.004] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Revised: 02/17/2017] [Accepted: 02/28/2017] [Indexed: 12/31/2022]
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31
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Yu E, Ruiz-Canela M, Guasch-Ferré M, Zheng Y, Toledo E, Clish CB, Salas-Salvadó J, Liang L, Wang DD, Corella D, Fitó M, Gómez-Gracia E, Lapetra J, Estruch R, Ros E, Cofán M, Arós F, Romaguera D, Serra-Majem L, Sorlí JV, Hu FB, Martinez-Gonzalez MA. Increases in Plasma Tryptophan Are Inversely Associated with Incident Cardiovascular Disease in the Prevención con Dieta Mediterránea (PREDIMED) Study. J Nutr 2017; 147:314-322. [PMID: 28179491 PMCID: PMC5320398 DOI: 10.3945/jn.116.241711] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Revised: 10/17/2016] [Accepted: 01/09/2017] [Indexed: 12/16/2022] Open
Abstract
Background: During development of cardiovascular disease (CVD), interferon-γ-mediated inflammation accelerates degradation of tryptophan into downstream metabolites. A Mediterranean diet (MedDiet) consisting of a high intake of extra-virgin olive oil (EVOO), nuts, fruits, vegetables, and cereals has been demonstrated to lower the risk of CVD. The longitudinal relation between tryptophan and its downstream metabolites and CVD in the context of a MedDiet is unstudied.Objective: We sought to investigate the relation between metabolites in the tryptophan-kynurenine pathway and CVD in the context of a MedDiet pattern.Methods: We used a case-cohort design nested in the Prevención con Dieta Mediterránea randomized controlled trial. There were 231 CVD cases (stroke, myocardial infarction, cardiovascular death) among 985 participants over a median of 4.7 y of follow-up [mean ± SD age: 67.6 ± 6.1 y; 53.7% women; mean ± SD body mass index (in kg/m2): 29.7 ± 3.7]. We assessed plasma tryptophan, kynurenine, kynurenic acid, 3-hydroxyanthranilic acid, and quinolinic acid concentrations at baseline and after 1 y of intervention with a MedDiet. We combined these metabolites in a kynurenine risk score (KRS) by weighting each metabolite by the adjusted coefficient of its associations with CVD. Cox models were used in the primary analysis.Results: Increases in tryptophan after 1 y were associated with a lower risk of composite CVD (HR per SD: 0.79; 95% CI: 0.63, 0.98). The baseline kynurenic acid concentration was associated with a higher risk of myocardial infarction and coronary artery disease death but not stroke. A higher KRS was more strongly associated with CVD in the control group than in the 2 intervention groups (P-interaction = 0.003). Adjustment for changes in plasma tryptophan attenuated the inverse association between MedDiet+EVOO and CVD.Conclusions: An increase in the plasma tryptophan concentration was significantly associated with a decreased risk of CVD. A MedDiet may counteract the deleterious effects of a high kynurenine risk score.
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Affiliation(s)
| | - Miguel Ruiz-Canela
- Department of Preventive Medicine and Public Health, University of Navarra, Pamplona, Spain
- Navarra Institute for Health Research, Pamplona, Spain
- Biomedical Research Centre in Physiopathology of Obesity and Nutrition (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
| | - Marta Guasch-Ferré
- Departments of Nutrition
- Navarra Institute for Health Research, Pamplona, Spain
- Biomedical Research Centre in Physiopathology of Obesity and Nutrition (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
| | | | - Estefania Toledo
- Department of Preventive Medicine and Public Health, University of Navarra, Pamplona, Spain
- Navarra Institute for Health Research, Pamplona, Spain
- Biomedical Research Centre in Physiopathology of Obesity and Nutrition (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
| | - Clary B Clish
- Broad Institute of MIT and Harvard University, Cambridge, MA
| | - Jordi Salas-Salvadó
- Biomedical Research Centre in Physiopathology of Obesity and Nutrition (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
- Human Nutrition Unit, Faculty of Medicine and Health Sciences, Institut d'Investigació Sanitària Pere Virgili, Rovira i Virgili University, Reus, Spain
| | | | | | - Dolores Corella
- Biomedical Research Centre in Physiopathology of Obesity and Nutrition (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
- Department of Preventive Medicine, University of Valencia, Valencia, Spain
| | - Montse Fitó
- Biomedical Research Centre in Physiopathology of Obesity and Nutrition (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
- Cardiovascular and Nutrition Research Group, Institut de Recerca Hospital del Mar, Barcelona, Spain
| | | | - José Lapetra
- Biomedical Research Centre in Physiopathology of Obesity and Nutrition (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
- Department of Family Medicine, Unit Research, Distrito Sanitario Atención Primaria Sevilla, Sevilla, Spain
| | - Ramón Estruch
- Biomedical Research Centre in Physiopathology of Obesity and Nutrition (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
- Department of Internal Medicine Institut d'Investigacions Biomèdiques August Pi Sunyer, Hospital Clinic, and
| | - Emilio Ros
- Biomedical Research Centre in Physiopathology of Obesity and Nutrition (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
- Lipid Clinic, Department of Endocrinology and Nutrition and University of Barcelona, Barcelona, Spain
| | - Montserrat Cofán
- Biomedical Research Centre in Physiopathology of Obesity and Nutrition (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
- Lipid Clinic, Department of Endocrinology and Nutrition and University of Barcelona, Barcelona, Spain
| | - Fernando Arós
- Biomedical Research Centre in Physiopathology of Obesity and Nutrition (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
- Department of Cardiology, University Hospital of Álava, Vitoria, Spain
| | - Dora Romaguera
- Biomedical Research Centre in Physiopathology of Obesity and Nutrition (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
- Health Research Institute of Palma, University Hospital Son Espases, Palma de Mallorca, Spain
| | - Lluis Serra-Majem
- Biomedical Research Centre in Physiopathology of Obesity and Nutrition (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
- Research Institute of Biomedical and Health Sciences, University of Las Palmas de Gran Canaria, Las Palmas, Spain; and
| | - Jose V Sorlí
- Biomedical Research Centre in Physiopathology of Obesity and Nutrition (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
- Cardiovascular and Nutrition Research Group, Institut de Recerca Hospital del Mar, Barcelona, Spain
| | - Frank B Hu
- Departments of Nutrition
- Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA
- Channing Division for Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA
| | - Miguel A Martinez-Gonzalez
- Departments of Nutrition,
- Department of Preventive Medicine and Public Health, University of Navarra, Pamplona, Spain
- Navarra Institute for Health Research, Pamplona, Spain
- Biomedical Research Centre in Physiopathology of Obesity and Nutrition (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
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32
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Takamura M, Kurokawa K, Ootsuji H, Inoue O, Okada H, Nomura A, Kaneko S, Usui S. Long-Term Administration of Eicosapentaenoic Acid Improves Post-Myocardial Infarction Cardiac Remodeling in Mice by Regulating Macrophage Polarization. J Am Heart Assoc 2017; 6:JAHA.116.004560. [PMID: 28223437 PMCID: PMC5523759 DOI: 10.1161/jaha.116.004560] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Background Consumption of n‐3 fatty acids reduces the incidence of cardiovascular mortality in populations that consume diets rich in fish oil. Eicosapentaenoic acid (EPA) is an n‐3 fatty acid known to reduce the frequency of nonfatal coronary events; however, the frequency of mortality after myocardial infarction (MI) is not reduced. The aims of this study were to determine whether long‐term administration of EPA regulated cardiac remodeling after MI and to elucidate the underlying therapeutic mechanisms of EPA. Methods and Results C57BL/6J mice were divided into control (phosphate‐buffered saline–treated) and EPA‐treated groups. After 28 days of treatment, the mice were subjected to either sham surgery or MI by left anterior descending coronary artery ligation. Mortality due to MI or heart failure was significantly lower in the EPA‐treated mice than in the phosphate‐buffered saline–treated mice. However, the incidence of cardiac rupture was comparable between the EPA‐treated mice and the phosphate‐buffered saline–treated mice after MI. Echocardiographic tests indicated that EPA treatment attenuated post‐MI cardiac remodeling by preventing issues such as left ventricular systolic dysfunction and left ventricle dilatation 28 days after MI induction. Moreover, during the chronic remodeling phase, ie, 28 days after MI, flow cytometry demonstrated that EPA treatment significantly inhibited polarization toward proinflammatory M1 macrophages, but not anti‐inflammatory M2 macrophages, in the infarcted heart. Furthermore, EPA treatment attenuated fibrosis in the noninfarcted remote areas during the chronic phase. Conclusions Long‐term administration of EPA improved the prognosis of and attenuated chronic cardiac remodeling after MI by modulating the activation of proinflammatory M1 macrophages.
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Affiliation(s)
- Masayuki Takamura
- Department of Disease Control and Homeostasis, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
| | - Keisuke Kurokawa
- Department of Disease Control and Homeostasis, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
| | - Hiroshi Ootsuji
- Department of Disease Control and Homeostasis, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
| | - Oto Inoue
- Department of Disease Control and Homeostasis, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
| | - Hikari Okada
- Department of Disease Control and Homeostasis, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
| | - Ayano Nomura
- Department of Disease Control and Homeostasis, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
| | - Shuichi Kaneko
- Department of Disease Control and Homeostasis, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
| | - Soichiro Usui
- Department of Disease Control and Homeostasis, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
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Porphyromonas gingivalis oral infection promote T helper 17/Treg imbalance in the development of atherosclerosis. J Dent Sci 2016; 12:60-69. [PMID: 30895025 PMCID: PMC6395245 DOI: 10.1016/j.jds.2016.10.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Revised: 10/13/2016] [Indexed: 02/08/2023] Open
Abstract
Background/purpose Increasing studies have indicated the involvement of Porphyromonas gingivalis in atherosclerosis. T helper 17 (Th17)/Treg balance is critical during atherosclerosis. However, whether P. gingivalis oral infection is associated with Th17/Treg imbalance is unclear. The aim of the present study was to investigate the effect of P. gingivalis on Th17/Treg balance during atherosclerosis. Materials and methods ApoE–/– and C57BL/6 mice were inoculated orally with P. gingivalis ATCC 33277 for 9 weeks. The alveolar bone loss was assessed by microcomputerized tomography. The area of atherosclerosis plaque was identified by oil red O staining. Plaque stability was analyzed by CD68 and αSMA immunohistochemistry staining and Masson staining. The frequency of Th17 and Treg in spleen was detected by flow cytometry. The mRNA expression of Th17- and Treg-related factors was determined by quantitative polymerase chain reaction. Interleukin (IL)-6, a critical factor in modulating T-cell differentiation, was determined from spleen cells and mouse dendritic cells by enzyme-linked immunosorbent assay. Results Long-term P. gingivalis oral infection induced alveolar bone resorption. In ApoE–/– mice, P. gingivalis enhanced atherosclerotic lesion formation and plaque instability accompanied with a decreased Treg frequency and an increased Th17 cell frequency. In addition, mRNA expression of retinoic acid receptor-related orphan receptor γt and IL-17 was increased, and that of transforming growth factor (TGF) β and IL-10 was decreased in P. gingivalis-infected ApoE–/– mice. Furthermore, secretion of IL-6 was elevated in the spleen of P. gingivalis-infected ApoE–/– mice, as well as in mouse dendritic cells after P. gingivalis infection. Conclusion P. gingivalis oral infection may promote Th17/Treg imbalance by influencing T-cell differentiation during the process of atherosclerosis, with a larger lesion area and decreasing plaque instability.
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Cuartero MI, de la Parra J, García-Culebras A, Ballesteros I, Lizasoain I, Moro MÁ. The Kynurenine Pathway in the Acute and Chronic Phases of Cerebral Ischemia. Curr Pharm Des 2016; 22:1060-73. [PMID: 25248805 DOI: 10.2174/1381612822666151214125950] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2015] [Accepted: 12/11/2015] [Indexed: 12/12/2022]
Abstract
Kynurenines are a wide range of catabolites which derive from tryptophan through the "Kynurenine Pathway" (KP). In addition to its peripheral role, increasing evidence shows a role of the KP in the central nervous system (CNS), mediating both physiological and pathological functions. Indeed, an imbalance in this route has been associated with several neurodegenerative disorders such as Alzheimer´s and Huntington´s diseases. Altered KP catabolism has also been described during both acute and chronic phases of stroke; however the contribution of the KP to the pathophysiology of acute ischemic damage and of post-stroke disorders during the chronic phase including depression and vascular dementia, and the exact mechanisms implicated in the regulation of the KP after stroke are not well established yet. A better understanding of the regulation and activity of the KP after stroke could provide new pharmacological tools in both acute and chronic phases of stroke. In this review, we will make an overview of CNS modulation by the KP. We will detail the KP contribution in the ischemic damage, how the unbalance of the KP might trigger an alteration of the cognitive function after stroke as well as potential targets for the development of new drugs.
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Affiliation(s)
- María Isabel Cuartero
- Unidad de Investigación Neurovascular, Departamento de Farmacología, Facultad de Medicina, Universidad Complutense, Avenida Complutense s/n, 28040 Madrid, Spain.
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Abstract
Atherosclerosis is a chronic inflammatory disease. Interventions targeting the inflammatory process could provide new strategies for preventing atherosclerotic cardiovascular diseases (CVD). Previously, we have reported that oral administration of anti-CD3 antibodies, or active vitamin D3, reduced atherosclerosis in mice via recruiting regulatory T cells and tolerogenic dendritic cells to the gut-associated lymphoid tissues. From this, it is reasonable to propose that the intestine could be a novel therapeutic target for prevention of atherosclerotic CVD. Recently, the association between cardio-metabolic diseases and gut microbiota has attracted increased attention. Gut microbiota, reported to be highly associated with intestinal immunity and metabolism, were shown to aggravate CVD by contributing to the production of trimethylamine-N-oxide (TMAO), a pro-atherogenic compound. We have also previously investigated the relationship between patient susceptibility to coronary artery disease (CAD) and gut microbiota. We found that the order Lactobacillales was significantly increased and the phylum Bacteroidetes was decreased in CAD patients compared with control patients. In this review article, we discuss the evidence for the relationship between the gut microbiota and cardio-metabolic diseases, and consider the gut microbiota as new potential diagnostic and therapeutic tool for treating CVD.
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Affiliation(s)
- Tomoya Yamashita
- Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine
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Nosaka K, Miyoshi T, Iwamoto M, Kajiya M, Okawa K, Tsukuda S, Yokohama F, Sogo M, Nishibe T, Matsuo N, Hirohata S, Ito H, Doi M. Early initiation of eicosapentaenoic acid and statin treatment is associated with better clinical outcomes than statin alone in patients with acute coronary syndromes: 1-year outcomes of a randomized controlled study. Int J Cardiol 2016; 228:173-179. [PMID: 27865182 DOI: 10.1016/j.ijcard.2016.11.105] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Accepted: 11/06/2016] [Indexed: 02/02/2023]
Abstract
BACKGROUND Early initiation of EPA treatment in combination with a statin within 24h after percutaneous coronary intervention (PCI) in patients with acute myocardial infarction (MI) reduces inflammation and ventricular arrhythmia compared with statin monotherapy; however, the impact of early initiation of EPA treatment on cardiovascular events is unclear. We determined whether early eicosapentaenoic acid (EPA) treatment in patients with acute coronary syndrome (ACS) reduces adverse cardiovascular events. METHODS This prospective, open-label, blind end point-randomized trial consisted of 241 patients with ACS. Patients were randomly assigned to receive pitavastatin (2mg/day) with or without 1800mg/day of EPA initiated within 24h after PCI. The primary endpoint was defined as cardiovascular events occurring within 1year, including death from a cardiovascular cause, nonfatal stroke, nonfatal MI and revascularization. RESULTS The mean EPA/arachidonic acid ratio at follow-up was 0.40 in the control group and 1.15 in the EPA group. A primary endpoint event occurred in 11 patients (9.2%) in the EPA group and 24 patients (20.2%) in the control group (absolute risk reduction, 11.0%; hazard ratio, 0.42; 95% confidence interval, 0.21 to 0.87; P=0.02). Notably, death from a cardiovascular cause at 1year was significantly lower in the EPA group than in the control group (0.8% vs. 4.2%, P=0.04). CONCLUSIONS Early initiation of treatment with EPA combined with statin after successful primary PCI reduced cardiovascular events after ACS. CLINICAL TRIAL REGISTRATION UMIN Clinical Trials Registry (UMIN-CTR); Registry Number, UMIN000016723; URL, http://www.umin.ac.jp/ctr/index-j.htm.
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Affiliation(s)
- Kazumasa Nosaka
- Department of Cardiology, Kagawa Prefectural Central Hospital, 1-2-1 Asahi-machi, Takamatsu City, Kagawa 760-8557, Japan.
| | - Toru Miyoshi
- Department of Cardiovascular Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Okayama City 700-8558, Japan.
| | - Mutsumi Iwamoto
- Department of Cardiology, Kagawa Prefectural Central Hospital, 1-2-1 Asahi-machi, Takamatsu City, Kagawa 760-8557, Japan.
| | - Masahito Kajiya
- Department of Cardiology, Kagawa Prefectural Central Hospital, 1-2-1 Asahi-machi, Takamatsu City, Kagawa 760-8557, Japan.
| | - Keisuke Okawa
- Department of Cardiology, Kagawa Prefectural Central Hospital, 1-2-1 Asahi-machi, Takamatsu City, Kagawa 760-8557, Japan.
| | - Saori Tsukuda
- Department of Cardiology, Kagawa Prefectural Central Hospital, 1-2-1 Asahi-machi, Takamatsu City, Kagawa 760-8557, Japan.
| | - Fumi Yokohama
- Department of Cardiology, Kagawa Prefectural Central Hospital, 1-2-1 Asahi-machi, Takamatsu City, Kagawa 760-8557, Japan.
| | - Masahiro Sogo
- Department of Cardiology, Kagawa Prefectural Central Hospital, 1-2-1 Asahi-machi, Takamatsu City, Kagawa 760-8557, Japan.
| | - Tomoyuki Nishibe
- Department of Cardiology, Kagawa Prefectural Central Hospital, 1-2-1 Asahi-machi, Takamatsu City, Kagawa 760-8557, Japan.
| | - Naoaki Matsuo
- Department of Cardiology, Kagawa Prefectural Central Hospital, 1-2-1 Asahi-machi, Takamatsu City, Kagawa 760-8557, Japan.
| | - Satoshi Hirohata
- Department of Medical Technology, Okayama University Graduate School of Health, 2-5-1 Shikata-cho, Okayama City 700-8558, Japan.
| | - Hiroshi Ito
- Department of Cardiovascular Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Okayama City 700-8558, Japan.
| | - Masayuki Doi
- Department of Cardiology, Kagawa Prefectural Central Hospital, 1-2-1 Asahi-machi, Takamatsu City, Kagawa 760-8557, Japan.
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Abstract
Atherosclerosis is a chronic inflammatory disease affecting large and medium arteries and is considered to be a major underlying cause of cardiovascular disease (CVD). Although the development of pharmacotherapies to treat CVD has contributed to a decline in cardiac mortality in the past few decades, CVD is estimated to be the cause of one-third of deaths globally. Nutraceuticals are natural nutritional compounds that are beneficial for the prevention or treatment of disease and, therefore, are a possible therapeutic avenue for the treatment of atherosclerosis. The purpose of this Review is to highlight potential nutraceuticals for use as antiatherogenic therapies with evidence from in vitro and in vivo studies. Furthermore, the current evidence from observational and randomized clinical studies into the role of nutraceuticals in preventing atherosclerosis in humans will also be discussed.
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Affiliation(s)
- Joe W E Moss
- Cardiff School of Biosciences, Cardiff University, Sir Martin Evans Building, Museum Avenue, Cardiff CF10 3AX, UK
| | - Dipak P Ramji
- Cardiff School of Biosciences, Cardiff University, Sir Martin Evans Building, Museum Avenue, Cardiff CF10 3AX, UK
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Ahn J, Park SK, Park TS, Kim JH, Yun E, Kim SP, Lee HW, Oh JH, Choi JH, Cha KS, Hong TJ, Lee SY, Lee HC. Effect of n-3 Polyunsaturated Fatty Acids on Regression of Coronary Atherosclerosis in Statin Treated Patients Undergoing Percutaneous Coronary Intervention. Korean Circ J 2016; 46:481-9. [PMID: 27482256 PMCID: PMC4965426 DOI: 10.4070/kcj.2016.46.4.481] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Revised: 09/03/2015] [Accepted: 10/13/2015] [Indexed: 11/16/2022] Open
Abstract
Background and Objectives Statins remain the mainstay of secondary coronary artery disease (CAD) prevention, but n-3 polyunsaturated fatty acids (ω-3 PUFA) display biological effects that may also reduce the risk of atherosclerosis and CAD. However, data on the possible antiatherosclerotic benefits of adding ω-3 PUFA to statin therapy are limited. This study aimed to investigate the potential additive effects of ω-3 PUFA on regression of atherosclerosis in CAD patients receiving statin therapy and stent implantation. Subjects and Methods Seventy-four CAD patients undergoing percutaneous coronary intervention (PCI) with stent implantation were enrolled, prescribed statins, and randomly assigned to two groups: n-3 group (ω-3 PUFA 3 g/day, n=38) or placebo group (placebo, n=36). All patients completed the study follow-up consisting of an intravascular ultrasound at baseline and at 12 months. Results There was no difference in the baseline characteristics and distribution of other medications. No significant differences were observed in primary endpoints, including changes in atheroma volume index (−12.65% vs. −8.51%, p=0.768) and percent atheroma volume (−4.36% vs. −9.98%, p=0.526), and in secondary endpoints including a change in neointimal volume index (7.84 vs. 4.94 mm3/mm, p=0.087). Conclusion ω-3 PUFA had no definite additional effect on the regression of coronary atherosclerosis when added to statin in CAD patients undergoing PCI.
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Affiliation(s)
- Jinhee Ahn
- Division of Cardiology, Department of Internal Medicine, Pusan National University Hospital, Busan, Korea
| | - Seo Kwang Park
- Division of Cardiology, Department of Internal Medicine, Pusan National University Hospital, Busan, Korea
| | - Tae Sik Park
- Division of Cardiology, Department of Internal Medicine, Pusan National University Hospital, Busan, Korea
| | - Jin Hee Kim
- Department of Internal Medicine, Busan Medical Center, Busan, Korea
| | - Eunyoung Yun
- Department of Biostatistics, Pusan National University Hospital, Busan, Korea
| | - Sang-Pil Kim
- Department of Cardiovascular Surgery, Pusan National University Hospital, Busan, Korea
| | - Hye Won Lee
- Division of Cardiology, Department of Internal Medicine, Pusan National University Hospital, Busan, Korea
| | - Jun-Hyok Oh
- Division of Cardiology, Department of Internal Medicine, Pusan National University Hospital, Busan, Korea
| | - Jung Hyun Choi
- Division of Cardiology, Department of Internal Medicine, Pusan National University Hospital, Busan, Korea
| | - Kwang Soo Cha
- Division of Cardiology, Department of Internal Medicine, Pusan National University Hospital, Busan, Korea
| | - Taek Jong Hong
- Division of Cardiology, Department of Internal Medicine, Pusan National University Hospital, Busan, Korea
| | - Sang Yeoup Lee
- Family Medicine Clinic and Research Institute of Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Korea.; Medical Education Unit and Medical Research Institute, Pusan National University School of Medicine, Yangsan, Korea
| | - Han Cheol Lee
- Division of Cardiology, Department of Internal Medicine, Pusan National University Hospital, Busan, Korea
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Cytokines: roles in atherosclerosis disease progression and potential therapeutic targets. Future Med Chem 2016; 8:1317-30. [PMID: 27357616 DOI: 10.4155/fmc-2016-0072] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Atherosclerosis, the primary cause of cardiovascular disease (CVD), is a chronic inflammatory disorder in the walls of medium and large arteries. CVD is currently responsible for about one in three global deaths and this is expected to rise in the future due to an increase in the prevalence of obesity and diabetes. Current therapies for atherosclerosis mainly modulate lipid homeostasis and while successful at reducing the risk of a CVD-related death, they are associated with considerable residual risk and various side effects. There is, therefore, a need for alternative therapies aimed at regulating inflammation in order to reduce atherogenesis. This review will highlight the key role cytokines play during disease progression as well as potential therapeutic strategies to target them.
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Abstract
The metabolic syndrome (MetS) is comprised of a cluster of closely related risk factors, including visceral adiposity, insulin resistance, hypertension, high triglyceride, and low high-density lipoprotein cholesterol; all of which increase the risk for the development of type 2 diabetes and cardiovascular disease. A chronic state of inflammation appears to be a central mechanism underlying the pathophysiology of insulin resistance and MetS. In this review, we summarize recent research which has provided insight into the mechanisms by which inflammation underlies the pathophysiology of the individual components of MetS including visceral adiposity, hyperglycemia and insulin resistance, dyslipidemia, and hypertension. On the basis of these mechanisms, we summarize therapeutic modalities to target inflammation in the MetS and its individual components. Current therapeutic modalities can modulate the individual components of MetS and have a direct anti-inflammatory effect. Lifestyle modifications including exercise, weight loss, and diets high in fruits, vegetables, fiber, whole grains, and low-fat dairy and low in saturated fat and glucose are recommended as a first line therapy. The Mediterranean and dietary approaches to stop hypertension diets are especially beneficial and have been shown to prevent development of MetS. Moreover, the Mediterranean diet has been associated with reductions in total and cardiovascular mortality. Omega-3 fatty acids and peroxisome proliferator-activated receptor α agonists lower high levels of triglyceride; their role in targeting inflammation is reviewed. Angiotensin-converting enzyme inhibitors, angiotensin receptor blockers, and aldosterone blockers comprise pharmacologic therapies for hypertension but also target other aspects of MetS including inflammation. Statin drugs target many of the underlying inflammatory pathways involved in MetS.
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Affiliation(s)
- Francine K Welty
- Division of Cardiology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Mass.
| | - Abdulhamied Alfaddagh
- Division of Cardiology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Mass
| | - Tarec K Elajami
- Division of Cardiology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Mass
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Abstract
BACKGROUND/OBJECTIVES Epidemiological, diet-based, and some interventional outcomes studies suggest that polyunsaturated omega-3 fatty acids (OM3FAs), specifically eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), confer cardiovascular protection in some patient populations. This review examines the historical context of OM3FAs in cardiovascular disease and future perspectives on the place of OM3FA products in reducing cardiovascular risk. METHODS Relevant articles were identified via PubMed/Medline and Google Scholar searches through 2015 and through reference lists of selected publications. Articles determined by the authors to be relevant to the topic of this review were included. RESULTS Review of the identified articles indicated that inconsistent results among interventional outcomes studies have been attributed to use of low doses of OM3FAs, patient cohorts with non-elevated triglyceride (TG) levels, differential use of concomitant statin therapy, and study designs with insufficient statistical power. Several prescription OM3FA products are now approved as an adjunct to diet to reduce TG levels in adults with severe (≥500 mg/dL) hypertriglyceridemia. Most formulations contain both EPA and DHA; one formulation contains purified EPA. In randomized controlled trials, these products significantly reduced TG levels in patients with very high TG levels (≥500 mg/dL [≥13.0 mmol/L]) and in statin-treated patients with high TG levels (200-499 mg/dL [5.2-12.9 mmol/L]). The DHA-containing products raised LDL-C levels in these studies, whereas the EPA-only product had no effect on LDL-C, suggesting that all OM3FA prescription products are not therapeutically equivalent. Besides lowering TG levels, OM3FAs (particularly EPA) exert anti-inflammatory effects and may slow multiple atherogenic processes. Two well designed interventional outcomes studies (REDUCE-IT and STRENGTH) are evaluating prescription-strength, high-dose OM3FAs (4 g/day) in statin-treated patients with persistently high TG levels. CONCLUSIONS The results of the ongoing prescription-strength, high-dose OM3FA interventional trials will help define the potential role of OM3FAs in addressing residual cardiovascular risk despite statin therapy.
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Affiliation(s)
- Laurence S Sperling
- a a Emory University School of Medicine and Rollins School of Public Health at Emory University , Atlanta , GA , USA
| | - John R Nelson
- b b UCSF School of Medicine, Fresno-Medicine Residency Program-Volunteer , Fresno , CA , USA
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Metghalchi S, Ponnuswamy P, Simon T, Haddad Y, Laurans L, Clément M, Dalloz M, Romain M, Esposito B, Koropoulis V, Lamas B, Paul JL, Cottin Y, Kotti S, Bruneval P, Callebert J, den Ruijter H, Launay JM, Danchin N, Sokol H, Tedgui A, Taleb S, Mallat Z. Indoleamine 2,3-Dioxygenase Fine-Tunes Immune Homeostasis in Atherosclerosis and Colitis through Repression of Interleukin-10 Production. Cell Metab 2015; 22:460-71. [PMID: 26235422 DOI: 10.1016/j.cmet.2015.07.004] [Citation(s) in RCA: 98] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2015] [Revised: 05/06/2015] [Accepted: 07/01/2015] [Indexed: 01/01/2023]
Abstract
Indoleamine 2,3-dioxygenase 1 (Ido1) is a rate-limiting enzyme that catalizes the degradation of tryptophan along the kynurenine pathway. Here, we show that Ido1 activity sustains an immunostimulatory potential through inhibition of interleukin (Il)10. In atherosclerosis, Ido1-dependent inhibition of Il10 translates into disease exacerbation. The resistance of Ido1-deficient mice to enhanced immune activation is broken in Ido1/Il10 double-deficient mice, which show exaggerated immune responses and develop severe spontaneous colitis. We demonstrate that Ido1 activity is required for the regulation of Il10 and that kynurenic acid (Kna), an Ido1-derived metabolite, is responsible for reduced Il10 production through activation of a cAMP-dependent pathway and inhibition of Erk1/2 phosphorylation. Resupplementation of Ido1-deficient mice with Kna limits Il10 expression and promotes atherosclerosis. In human atherosclerotic lesions, increased levels of Kna are associated with an unstable plaque phenotype, and its blood levels predict death and recurrent myocardial infarction in patients with coronary artery disease.
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Affiliation(s)
- Sarvenaz Metghalchi
- Institut National de la Santé et de la Recherche Médicale (Inserm), Unit 970, Paris Cardiovascular Research Center, and Université Paris-Descartes, Paris, France
| | - Padmapriya Ponnuswamy
- Institut National de la Santé et de la Recherche Médicale (Inserm), Unit 970, Paris Cardiovascular Research Center, and Université Paris-Descartes, Paris, France
| | - Tabassome Simon
- Assistance Publique, Hôpitaux de Paris (AP-HP), Hôpital St Antoine, UF de Pharmacologie Clinique, URC-EST, and Université Pierre et Marie Curie, Paris, France
| | - Yacine Haddad
- Institut National de la Santé et de la Recherche Médicale (Inserm), Unit 970, Paris Cardiovascular Research Center, and Université Paris-Descartes, Paris, France
| | - Ludivine Laurans
- Institut National de la Santé et de la Recherche Médicale (Inserm), Unit 970, Paris Cardiovascular Research Center, and Université Paris-Descartes, Paris, France
| | - Marc Clément
- Division of Cardiovascular Medicine, University of Cambridge, Addenbrooke's Hospital, Cambridge CB2 2QQ, UK
| | - Marion Dalloz
- Institut National de la Santé et de la Recherche Médicale (Inserm), Unit 970, Paris Cardiovascular Research Center, and Université Paris-Descartes, Paris, France
| | - Mélissa Romain
- Institut National de la Santé et de la Recherche Médicale (Inserm), Unit 970, Paris Cardiovascular Research Center, and Université Paris-Descartes, Paris, France
| | - Bruno Esposito
- Institut National de la Santé et de la Recherche Médicale (Inserm), Unit 970, Paris Cardiovascular Research Center, and Université Paris-Descartes, Paris, France
| | - Vincent Koropoulis
- Institut National de la Santé et de la Recherche Médicale (Inserm), Unit 970, Paris Cardiovascular Research Center, and Université Paris-Descartes, Paris, France
| | - Bruno Lamas
- Avenir Team Gut Microbiota and Immunity, INSERM U1157/UMR CNRS 7203, UMR 1319 Micalis, INRA, Jouy-en-Josas, France, AP-HP Hôpital St Antoine, Department of Gastroenterology and Université Pierre et Marie Curie 6, Paris, France
| | - Jean-Louis Paul
- Université Paris-Sud, Equipe d'Accueil 4529, UFR de Pharmacie, Chatenay-Malabry, France and AP-HP, Hôpital Européen Georges Pompidou, Paris, France
| | - Yves Cottin
- Centre Hospitalo-Universitaire de Dijon, Service de Cardiologie, Dijon, France
| | - Salma Kotti
- Assistance Publique, Hôpitaux de Paris (AP-HP), Hôpital St Antoine, UF de Pharmacologie Clinique, URC-EST, and Université Pierre et Marie Curie, Paris, France
| | - Patrick Bruneval
- Institut National de la Santé et de la Recherche Médicale (Inserm), Unit 970, Paris Cardiovascular Research Center, and Université Paris-Descartes, Paris, France; AP-HP, Hôpital Européen Georges Pompidou, Université Paris-Descartes, Paris, France
| | - Jacques Callebert
- AP-HP, Service de Biochimie and INSERM U942, Hôpital Lariboisière, Paris, France
| | - Hester den Ruijter
- Laboratory for Experimental Cardiology, University Medical Centre Utrecht, Utrecht, the Netherlands
| | - Jean-Marie Launay
- AP-HP, Service de Biochimie and INSERM U942, Hôpital Lariboisière, Paris, France
| | - Nicolas Danchin
- AP-HP, Hôpital Européen Georges Pompidou, Université Paris-Descartes, Paris, France
| | - Harry Sokol
- Avenir Team Gut Microbiota and Immunity, INSERM U1157/UMR CNRS 7203, UMR 1319 Micalis, INRA, Jouy-en-Josas, France, AP-HP Hôpital St Antoine, Department of Gastroenterology and Université Pierre et Marie Curie 6, Paris, France
| | - Alain Tedgui
- Institut National de la Santé et de la Recherche Médicale (Inserm), Unit 970, Paris Cardiovascular Research Center, and Université Paris-Descartes, Paris, France
| | - Soraya Taleb
- Institut National de la Santé et de la Recherche Médicale (Inserm), Unit 970, Paris Cardiovascular Research Center, and Université Paris-Descartes, Paris, France.
| | - Ziad Mallat
- Institut National de la Santé et de la Recherche Médicale (Inserm), Unit 970, Paris Cardiovascular Research Center, and Université Paris-Descartes, Paris, France; Division of Cardiovascular Medicine, University of Cambridge, Addenbrooke's Hospital, Cambridge CB2 2QQ, UK.
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Li HQ, Zhang Q, Chen L, Yin CS, Chen P, Tang J, Rong R, Li TT, Hu LQ. Captopril inhibits maturation of dendritic cells and maintains their tolerogenic property in atherosclerotic rats. Int Immunopharmacol 2015; 28:715-23. [DOI: 10.1016/j.intimp.2015.05.052] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2015] [Revised: 05/11/2015] [Accepted: 05/31/2015] [Indexed: 10/23/2022]
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44
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Yamashita T, Kasahara K, Emoto T, Matsumoto T, Mizoguchi T, Kitano N, Sasaki N, Hirata KI. Intestinal Immunity and Gut Microbiota as Therapeutic Targets for Preventing Atherosclerotic Cardiovascular Diseases. Circ J 2015. [PMID: 26212124 DOI: 10.1253/circj.cj-15-0526] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Atherosclerosis is considered a chronic inflammatory disease and an intervention targeting the inflammatory process could be a new therapeutic strategy for preventing atherosclerotic cardiovascular diseases (CVD). We hypothesized that the intestine, which is considered the biggest immune organ in the human body, could be a therapeutic target for preventing CVD. We demonstrated that oral administration of anti-CD3 antibody or an active form of vitamin D3 reduced atherosclerosis in mice via induction of regulatory T cells and tolerogenic dendritic cells in the gut-associated lymphoid tissues. Similar to regulatory immune responses achieved by oral tolerance, our method had systemic effects that ultimately contributed towards atherosclerosis reduction. Recently, we have been interested in the gut microbiota, which have been reported as highly associated with intestinal immunity and systemic metabolic disorders, including obesity and diabetes. Notably, the guts of obese individuals are predominantly colonized by Firmicutes over Bacteroidetes. The association between atherosclerosis and microbiota has been attracting increased attention, and gut microbiota have been shown to participate in the metabolism of a proatherogenic compound called trimethylamine-N-oxide (TMAO) and aggravate CVD. Our investigation of the relationship between susceptibility to CVD and the gut microbiota revealed a characteristic flora type. Here, we discuss the evidence for the relationship between the gut microbiota and cardiometabolic diseases, and consider the gut microbiota as new potential therapeutic targets for treating CVD. (Circ J 2015; 79: 1882-1890).
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Affiliation(s)
- Tomoya Yamashita
- Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine
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45
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Abstract
IDO1 (indoleamine 2,3-dioxygenase 1) is a member of a unique class of mammalian haem dioxygenases that catalyse the oxidative catabolism of the least-abundant essential amino acid, L-Trp (L-tryptophan), along the kynurenine pathway. Significant increases in knowledge have been recently gained with respect to understanding the fundamental biochemistry of IDO1 including its catalytic reaction mechanism, the scope of enzyme reactions it catalyses, the biochemical mechanisms controlling IDO1 expression and enzyme activity, and the discovery of enzyme inhibitors. Major advances in understanding the roles of IDO1 in physiology and disease have also been realised. IDO1 is recognised as a prominent immune regulatory enzyme capable of modulating immune cell activation status and phenotype via several molecular mechanisms including enzyme-dependent deprivation of L-Trp and its conversion into the aryl hydrocarbon receptor ligand kynurenine and other bioactive kynurenine pathway metabolites, or non-enzymatic cell signalling actions involving tyrosine phosphorylation of IDO1. Through these different modes of biochemical signalling, IDO1 regulates certain physiological functions (e.g. pregnancy) and modulates the pathogenesis and severity of diverse conditions including chronic inflammation, infectious disease, allergic and autoimmune disorders, transplantation, neuropathology and cancer. In the present review, we detail the current understanding of IDO1’s catalytic actions and the biochemical mechanisms regulating IDO1 expression and activity. We also discuss the biological functions of IDO1 with a focus on the enzyme's immune-modulatory function, its medical implications in diverse pathological settings and its utility as a therapeutic target.
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46
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Yamashita T, Sasaki N, Kasahara K, Hirata KI. Anti-inflammatory and immune-modulatory therapies for preventing atherosclerotic cardiovascular disease. J Cardiol 2015; 66:1-8. [DOI: 10.1016/j.jjcc.2015.02.002] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2015] [Accepted: 01/31/2015] [Indexed: 12/28/2022]
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Wang Q, Liu D, Song P, Zou MH. Tryptophan-kynurenine pathway is dysregulated in inflammation, and immune activation. Front Biosci (Landmark Ed) 2015; 20:1116-43. [PMID: 25961549 DOI: 10.2741/4363] [Citation(s) in RCA: 235] [Impact Index Per Article: 26.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The kynurenine (Kyn) pathway is the major route for tryptophan (Trp) metabolism, and it contributes to several fundamental biological processes. Trp is constitutively oxidized by tryptophan 2, 3-dioxygenase in liver cells. In other cell types, it is catalyzed by an alternative inducible indoleamine-pyrrole 2, 3-dioxygenase (IDO) under certain pathophysiological conditions, which consequently increases the formation of Kyn metabolites. IDO is up-regulated in response to inflammatory conditions as a novel marker of immune activation in early atherosclerosis. Besides, IDO and the IDO-related pathway are important mediators of the immunoinflammatory responses in advanced atherosclerosis. In particular, Kyn, 3-hydroxykynurenine, and quinolinic acid are positively associated with inflammation, oxidative stress (SOX), endothelial dysfunction, and carotid artery intima-media thickness values in end-stage renal disease patients. Moreover, IDO is a potential novel contributor to vessel relaxation and metabolism in systemic infections, which is also activated in acute severe heart attacks. The Kyn pathway plays a key role in the increased prevalence of cardiovascular disease by regulating inflammation, SOX, and immune activation.
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Affiliation(s)
| | | | | | - Ming-Hui Zou
- Division of Molecular Medicine, Department of Medicine, and Department of Biochemistry and Molecular Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA,
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Yoshihara T, Shimada K, Fukao K, Sai E, Sato-Okabayashi Y, Matsumori R, Shiozawa T, Alshahi H, Miyazaki T, Tada N, Daida H. Omega 3 Polyunsaturated Fatty Acids Suppress the Development of Aortic Aneurysms Through the Inhibition of Macrophage-Mediated Inflammation. Circ J 2015; 79:1470-8. [PMID: 25925976 DOI: 10.1253/circj.cj-14-0471] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND Dietary intake of ω3 polyunsaturated fatty acids (ω3-PUFAs) reduces progression of atherosclerosis and prevents future cardiovascular events. Macrophages are key players in the pathogenesis of aortic aneurysm. The effects of ω3-PUFAs on abdominal aortic aneurysm (AAA) formation and macrophage-mediated inflammation remain unclear. METHODS AND RESULTS: The AAA model was developed by angiotensin II infusion in apolipoprotein E-deficient mice. Mice were supplemented with eicosapentaenoic acid (EPA) or docosahexaenoic acid (DHA). The development of AAA lesions and macrophage infiltration in the aorta were analyzed. Gene expression of inflammatory markers in aortic tissues and peritoneal macrophages were measured by using quantitative polymerase chain reaction. AAA formation and macrophage infiltration were significantly suppressed after EPA and DHA administration. EPA administration and DHA administration significantly decreased the expression of tumor necrosis factor-α, monocyte chemoattractant protein-1, transforming growth factor-β, matrix metalloproteinases (MMP)-2, MMP-9, and vascular cell adhesion molecule-1 in the aortas. The expression of arginase 2, which is a marker of pro-inflammatory macrophages, was significantly lower and that of Ym1, which is a marker of anti-inflammatory macrophages, and was significantly higher after EPA and DHA administration. The same trends were observed in peritoneal macrophages after EPA and DHA administration. CONCLUSIONS Dietary intake of EPA and DHA prevented AAA development through the inhibition of aortic and macrophage-mediated inflammation.
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Affiliation(s)
- Takuma Yoshihara
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine
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Viola J, Soehnlein O. Atherosclerosis - A matter of unresolved inflammation. Semin Immunol 2015; 27:184-93. [PMID: 25865626 DOI: 10.1016/j.smim.2015.03.013] [Citation(s) in RCA: 171] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Revised: 03/19/2015] [Accepted: 03/27/2015] [Indexed: 12/13/2022]
Abstract
Atherosclerosis is commonly looked upon as a chronic inflammatory disease of the arterial wall arising from an unbalanced lipid metabolism and a maladaptive inflammatory response. However, atherosclerosis is not merely an inflammation of the vessel wall. In fact, the cardinal signs of unstable atherosclerotic lesions are primarily characteristics of failed resolution of a chronic inflammation. In contrast to acute inflammatory events which are typically self-limiting, atherosclerosis is an unresolved inflammatory condition, lacking the switch from the pro-inflammatory to the pro-resolving phase, the latter characterized by termination of inflammatory cell recruitment, removal of inflammatory cells from the site of inflammation by apoptosis and dead cell clearance, reprogramming of macrophages toward an anti-inflammatory, regenerative phenotype, and finally egress of effector cells and tissue regeneration. Here we present an overview on mechanisms of failed resolution contributing to atheroprogression and deliver a summary of novel therapeutic strategies to restore resolution in inflamed arteries.
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Affiliation(s)
- Joana Viola
- Institute for Cardiovascular Prevention (IPEK), LMU Munich, Germany.
| | - Oliver Soehnlein
- Institute for Cardiovascular Prevention (IPEK), LMU Munich, Germany; Department of Pathology, Academic Medical Center (AMC), Amsterdam, The Netherlands; German Centre for Cardiovascular Research (DZHK), Munich Heart Alliance, Munich, Germany.
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Hepatic overexpression of the prodomain of furin lessens progression of atherosclerosis and reduces vascular remodeling in response to injury. Atherosclerosis 2014; 236:121-30. [PMID: 25026302 DOI: 10.1016/j.atherosclerosis.2014.06.015] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/26/2013] [Revised: 06/16/2014] [Accepted: 06/18/2014] [Indexed: 11/24/2022]
Abstract
OBJECTIVE Atherosclerosis is a complex disease, involving elevated LDL-c, lipid accumulation in the blood vessel wall, foam cell formation and vascular dysfunction. Lowering plasma LDL-c is the cornerstone of current management of cardiovascular disease. However, new approaches which reduce plasma LDL-c and lessen the pathological vascular remodeling occurring in the disease should also have therapeutic value. Previously, we found that overexpression of profurin, the 83-amino acid prodomain of the proprotein convertase furin, lowered plasma HDL levels in wild-type mice. The question that remained was whether it had effects on apolipoprotein B (ApoB)-containing lipoproteins. METHODS Adenovirus mediated overexpression of hepatic profurin in Ldlr(-/-)mice and wild-type mice were used to evaluate effects of profurin on ApoB-containing lipoproteins, atherosclerosis and vascular remodeling. RESULTS Hepatic profurin overexpression resulted in a significant reduction in atherosclerotic lesion development in Ldlr(-/-)mice and a robust reduction in plasma LDL-c. Metabolic studies revealed lower secretion of ApoB and triglycerides in VLDL particles. Mechanistic studies showed that in the presence of profurin, hepatic ApoB, mainly ApoB100, was degraded by proteasomes. There was no effect on ApoB mRNA expression. Importantly, short-term hepatic profurin overexpression did not result in hepatic lipid accumulation. Blood vessel wall thickening caused by either wire-induced femoral artery injury or common carotid artery ligation was reduced. Profurin expression inhibited proliferation and migration in vascular smooth muscle cells in vitro. CONCLUSION These results indicate that a profurin-based therapy has the potential to treat atherosclerosis by improving metabolic lipid profiles and reducing both atherosclerotic lesion development and pathological vascular remodeling.
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