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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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2
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Zhao X, Ting SM, Sun G, Bautista Garrido J, Obertas L, Aronowski J. Clearance of Neutrophils From ICH-Affected Brain by Macrophages Is Beneficial and Is Assisted by Lactoferrin and CD91. Stroke 2024; 55:166-176. [PMID: 38063014 PMCID: PMC10842928 DOI: 10.1161/strokeaha.123.045194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 11/14/2023] [Indexed: 12/24/2023]
Abstract
BACKGROUND Within hours after intracerebral hemorrhage (ICH) onset, masses of polymorphonuclear neutrophils (PMNs) infiltrate the ICH-affected brain. After degranulation involving controlled release of many toxic antimicrobial molecules, the PMNs undergo rapid apoptosis and then are removed by phagocytic microglia/macrophages (MΦ) through a process called efferocytosis. Effective removal of PMNs may limit secondary brain damage and inflammation; however, the molecular mechanisms governing these cleanup activities are not well understood. We propose that scavenger receptor CD91 on myeloid phagocytes especially in presence of CD91 ligand, LTF (lactoferrin, protein abundant in PMNs), plays an important role in clearance of dead apoptotic PMNs (ANs). METHODS Mice/rats were subjected to an autologous blood injection model of ICH. Primary cultured microglia were used to assess phagocytosis of ANs. Immunohistochemistry was employed to assess CD91 expression and PMN infiltration. CD91 knockout mice selectively in myeloid phagocytes (Mac-CD91-KO) were used to establish the CD91/LTF function in phagocytosis and in reducing ICH-induced injury, as assessed using behavioral tests, hematoma resolution, and oxidative stress. RESULTS Masses of PMNs are found in ICH-affected brain, and they contain LTF. MΦ at the outer border of hematoma are densely packed, expressing CD91 and phagocytosing ANs. Microglia deficient in CD91 demonstrate defective phagocytosis of ANs, and mice deficient in CD91 (Mac-CD91-KO) subjected to ICH injury have increased neurological dysfunction that is associated with impaired hematoma resolution (hemoglobin and iron clearance) and elevated oxidative stress. LTF that normally ameliorates ICH injury in CD91-proficient control mice shows reduced therapeutic effects in Mac-CD91-KO mice. CONCLUSIONS Our study suggests that CD91 plays a beneficial role in improving ANs phagocytosis and ultimately post-ICH outcome and that the beneficial effect of LTF in ICH is in part dependent on presence of CD91 on MΦ.
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Affiliation(s)
- Xiurong Zhao
- Department of Neurology, University of Texas HSC, McGovern Medical School, Houston
| | - Shun-Ming Ting
- Department of Neurology, University of Texas HSC, McGovern Medical School, Houston
| | - Guanghua Sun
- Department of Neurology, University of Texas HSC, McGovern Medical School, Houston
| | | | - Lidiya Obertas
- Department of Neurology, University of Texas HSC, McGovern Medical School, Houston
| | - Jaroslaw Aronowski
- Department of Neurology, University of Texas HSC, McGovern Medical School, Houston
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3
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Yang XF, Shang DJ. The role of peroxisome proliferator-activated receptor γ in lipid metabolism and inflammation in atherosclerosis. Cell Biol Int 2023; 47:1469-1487. [PMID: 37369936 DOI: 10.1002/cbin.12065] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 05/09/2023] [Accepted: 06/18/2023] [Indexed: 06/29/2023]
Abstract
Cardiovascular disease events are the result of functional and structural abnormalities in the arteries and heart. Atherosclerosis is the main cause and pathological basis of cardiovascular diseases. Atherosclerosis is a multifactorial disease associated with dyslipidemia, inflammation, and oxidative stress, among which dyslipidemia and chronic inflammation occur in all processes. Under the influence of lipoproteins, the arterial intima causes inflammation, necrosis, fibrosis, and calcification, leading to plaque formation in specific parts of the artery, which further develops into plaque rupture and secondary thrombosis. Foam cell formation from macrophages is an early event in the development of atherosclerosis. Lipid uptake causes a vascular inflammatory response, and persistent inflammatory infiltration in the lesion area further promotes the development of the disease. Inhibition of macrophage differentiation into foam cell and reduction of the level of proinflammatory factors in macrophages can effectively alleviate the occurrence and development of atherosclerosis. Peroxisome proliferator-activated receptor γ (PPARγ) is a ligand-activated nuclear receptor that plays an important antiatherosclerotic role by regulating triglyceride metabolism, lipid uptake, cholesterol efflux, macrophage polarity, and inhibiting inflammatory signaling pathways. In addition, PPARγ shifts its binding to ligands and co-activators or co-repressors of transcription of target genes through posttranslational modification, thereby affecting the regulation of its downstream target genes. Many ligand agonists have also been developed targeting PPARγ. In this review, we summarized the role of PPARγ in lipid metabolism and inflammation in development of atherosclerosis, the posttranslational regulatory mechanism of PPARγ, and further discusses the value of PPARγ as an antiatherosclerosis target.
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Affiliation(s)
- Xue-Feng Yang
- School of Life Science, Liaoning Provincial Key Laboratory of Biotechnology and Drug Discovery, Liaoning Normal University, Dalian, China
- Department of Physiology, School of Basic Medical Sciences, Jinzhou Medical University, Jinzhou, China
| | - De-Jing Shang
- School of Life Science, Liaoning Provincial Key Laboratory of Biotechnology and Drug Discovery, Liaoning Normal University, Dalian, China
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4
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Yang Y, Karampoor S, Mirzaei R, Borozdkin L, Zhu P. The interplay between microbial metabolites and macrophages in cardiovascular diseases: A comprehensive review. Int Immunopharmacol 2023; 121:110546. [PMID: 37364331 DOI: 10.1016/j.intimp.2023.110546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 06/11/2023] [Accepted: 06/18/2023] [Indexed: 06/28/2023]
Abstract
The gut microbiome has emerged as a crucial player in developing and progressing cardiovascular diseases (CVDs). Recent studies have highlighted the role of microbial metabolites in modulating immune cell function and their impact on CVD. Macrophages, which have a significant function in the pathogenesis of CVD, are very vulnerable to the effects of microbial metabolites. Microbial metabolites, such as short-chain fatty acids (SCFAs) and trimethylamine-N-oxide (TMAO), have been linked to atherosclerosis and the regulation of immune functions. Butyrate has been demonstrated to reduce monocyte migration and inhibit monocyte attachment to injured endothelial cells, potentially contributing to the attenuation of the inflammatory response and the progression of atherosclerosis. On the other hand, TMAO, another compound generated by gut bacteria, has been linked to atherosclerosis due to its impact on lipid metabolism and the accumulation of cholesterol in macrophages. Indole-3-propionic acid, a tryptophan metabolite produced solely by microbes, has been found to promote the development of atherosclerosis by stimulating macrophage reverse cholesterol transport (RCT) and raising the expression of ABCA1. This review comprehensively discusses how various microbiota-produced metabolites affect macrophage polarization, inflammation, and foam cell formation in CVD. We also highlight the mechanisms underlying these effects and the potential therapeutic applications of targeting microbial metabolites in treating CVD.
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Affiliation(s)
- Yongzheng Yang
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, China
| | - Sajad Karampoor
- Gastrointestinal and Liver Diseases Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Rasoul Mirzaei
- Venom and Biotherapeutics Molecules Lab, Medical Biotechnology Department, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - Leonid Borozdkin
- Department of Maxillofacial Surgery, I. M. Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia.
| | - Ping Zhu
- Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong 510100, China.
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McAleer JP. Obesity and the microbiome in atopic dermatitis: Therapeutic implications for PPAR-γ agonists. FRONTIERS IN ALLERGY 2023; 4:1167800. [PMID: 37051264 PMCID: PMC10083318 DOI: 10.3389/falgy.2023.1167800] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 03/13/2023] [Indexed: 03/29/2023] Open
Abstract
Atopic dermatitis (AD) is an inflammatory skin disease characterized by epidermal barrier disruption, Th2 immune responses to skin allergens and microbial dysbiosis within affected lesions. Studies within the past decade have revealed genetic and environmental factors contributing to AD in children. Obesity is a metabolic disorder that often manifests early in life and is associated with reduced bacterial diversity, leading to skin colonization with lipophilic bacteria and intestinal colonization with pro-inflammatory species. These changes impair epithelial barriers and promote Th17 responses, which may worsen the severity of AD symptoms. While few studies have examined the contribution of microbiota in obesity-induced allergies, there is emerging evidence that PPAR-γ may be an effective therapeutic target. This review discusses the microbiome in pediatric AD, treatment with probiotics, how disease is altered by obesity and potential therapeutic effects of PPAR-γ agonists. While healthy skin contains diverse species adapted for specific niches, lesional skin is highly colonized with Staphylococcus aureus which perpetuates the inflammatory reaction. Treatments for AD should help to restore microbial diversity in the skin and intestine, as well as epithelial barrier function. Pre-clinical models have shown that PPAR-γ agonists can suppress Th17 responses, IgE production and mast cell function, while improving the epidermal barrier and microbial homeostasis. Overall, PPAR-γ agonists may be effective in a subset of patients with AD, and future studies should distinguish their metabolic and anti-inflammatory effects in order to inform the best therapies.
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Guha Ray A, Odum OP, Wiseman D, Weinstock A. The diverse roles of macrophages in metabolic inflammation and its resolution. Front Cell Dev Biol 2023; 11:1147434. [PMID: 36994095 PMCID: PMC10041730 DOI: 10.3389/fcell.2023.1147434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 02/14/2023] [Indexed: 03/14/2023] Open
Abstract
Macrophages are one of the most functionally diverse immune cells, indispensable to maintain tissue integrity and metabolic health. Macrophages perform a myriad of functions ranging from promoting inflammation, through inflammation resolution to restoring and maintaining tissue homeostasis. Metabolic diseases encompass a growing list of diseases which develop from a mix of genetics and environmental cues leading to metabolic dysregulation and subsequent inflammation. In this review, we summarize the contributions of macrophages to four metabolic conditions-insulin resistance and adipose tissue inflammation, atherosclerosis, non-alcoholic fatty liver disease and neurodegeneration. The role of macrophages is complex, yet they hold great promise as potential therapies to address these growing health concerns.
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Affiliation(s)
| | | | | | - Ada Weinstock
- Section of Genetic Medicine, Department of Medicine, The University of Chicago, Chicago, IL, United States
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Shin HH, Jeon ES, Lim BK. Macrophage-Specific Coxsackievirus and Adenovirus Receptor Deletion Enhances Macrophage M1 Polarity in CVB3-Induced Myocarditis. Int J Mol Sci 2023; 24:ijms24065309. [PMID: 36982385 PMCID: PMC10049483 DOI: 10.3390/ijms24065309] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 03/05/2023] [Accepted: 03/06/2023] [Indexed: 03/12/2023] Open
Abstract
The coxsackievirus and adenovirus receptor (CAR) is very well known as an epithelial tight junction and cardiac intercalated disc protein; it mediates attachment and infection via the coxsackievirus B3 (CVB3) and type 5 adenovirus. Macrophages play important roles in early immunity during viral infections. However, the role of CAR in macrophages is not well studied in relation to CVB3 infection. In this study, the function of CAR was observed in the Raw264.7 mouse macrophage cell line. CAR expression was stimulated by treatment with lipopolysaccharide (LPS) and tumor necrosis factor-α (TNF-α). In thioglycollate-induced peritonitis, the peritoneal macrophage was activated and CAR expression was increased. The macrophage-specific CAR conditional knockout mice (KO) were generated from lysozyme Cre mice. The expression of inflammatory cytokine (IL-1β and TNF-α) was attenuated in the KO mice’s peritoneal macrophage after LPS treatment. In addition, the virus was not replicated in CAR-deleted macrophages. The organ virus replication was not significantly different in both wild-type (WT) and KO mice at days three and seven post-infection (p.i). However, the inflammatory M1 polarity genes (IL-1β, IL-6, TNF-α and MCP-1) were significantly increased, with increased rates of myocarditis in the heart of KO mice compared to those of WT mice. In contrast, type1 interferon (IFN-α and β) was significantly decreased in the heart of KO mice. Serum chemokine CXCL-11 was increased in the KO mice at day three p.i. compared to the WT mice. The attenuation of IFN-α and β in macrophage CAR deletion induced higher levels of CXCL-11 and more increased CD4 and CD8 T cells in KO mice hearts compared to those of WT mice at day seven p.i. These results demonstrate that macrophage-specific CAR deletion increased the macrophage M1 polarity and myocarditis in CVB3 infection. In addition, chemokine CXCL-11 expression was increased, and stimulated CD4 and CD8 T cell activity. Macrophage CAR may be important for the regulation of innate-immunity-induced local inflammation in CVB3 infection.
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Affiliation(s)
- Ha-Hyeon Shin
- Department of Biomedical Science, Jungwon University, Goesan-gun 28024, Republic of Korea
| | - Eun-Seok Jeon
- Division of Cardiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, 50 Irwon Dong, Gangnam-gu, Seoul 06351, Republic of Korea
| | - Byung-Kwan Lim
- Department of Biomedical Science, Jungwon University, Goesan-gun 28024, Republic of Korea
- Correspondence: ; Tel.: +82-43-830-8605
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Zhao T, Li X, Qian H, Miao X, Zhu Y, Wang J, Hui J, Zhou L, Ye L. PM 2.5 induces the abnormal lipid metabolism and leads to atherosclerosis via Notch signaling pathway in rats. Toxicology 2023; 485:153415. [PMID: 36603807 DOI: 10.1016/j.tox.2022.153415] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 12/29/2022] [Accepted: 12/30/2022] [Indexed: 01/03/2023]
Abstract
PM2.5 can affect the lipid metabolism and cause atherosclerosis. Abnormal lipid metabolism is a sever risk factor of atherosclerosis and the underlying molecular mechanism still remains unclear. In this study, GPL16956 Agilent-045997 Arraystar human lncRNA microarray V3 (Probe Name Version) platform was used to detect the different genes of lipid metabolism between the normal arterial intima and advanced atherosclerotic plaque, which were downloaded from GEO database. A high-fat diet and vitamin D3 were administered to Wistar rats to establish the atherosclerotic model and another normal healthy 56 rats were used as the non-atherosclerotic exposure groups. The atherosclerotic rats and non-atherosclerotic rats were randomly divided into 4 PM2.5 groups (0, 1.5, 7.5, 37.5 mg/kg), respectively. The results of bioinformatics showed changes in the Notch1, Dll1, Hes1, LDLR and ABCG1 levels. PM2.5 exposure could produce damage to the physiological structure of the aorta, and aggravate atherosclerosis in rats from both non-atherosclerotic and atherosclerotic groups. With the increase of the exposure dose, the levels of TC and TG significantly increased. PM2.5 exposure significantly affected the expression levels of PPARγ, ABCA1, LDLR, CD36, SR-BI and SREBP2. PM2.5 exposure could also affect the expression levels of the Notch signaling pathways which was significantly correlated with the levels of TC and TG. The results proved that PM2.5 exposure could induce and aggravate the atherosclerosis in rats by disrupting lipid metabolism in which Notch signaling pathway may play a significant role.
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Affiliation(s)
- Tianyang Zhao
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun, China
| | - Xu Li
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun, China
| | - Honghao Qian
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun, China
| | - Xiaohan Miao
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun, China
| | - Ying Zhu
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun, China
| | - Jia Wang
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun, China
| | - Ju Hui
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun, China
| | - Liting Zhou
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun, China.
| | - Lin Ye
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun, China.
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The Impaired Mechanism and Facilitated Therapies of Efferocytosis in Atherosclerosis. J Cardiovasc Pharmacol 2022; 80:407-416. [PMID: 35853202 DOI: 10.1097/fjc.0000000000001311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Accepted: 05/21/2022] [Indexed: 01/31/2023]
Abstract
ABSTRACT Cardiovascular disease is responsible for the largest number of deaths worldwide, and atherosclerosis is the primary cause. Apoptotic cell accumulation in atherosclerotic plaques leads to necrotic core formation and plaque rupture. Emerging findings show that the progression of atherosclerosis appears to suppress the elimination of apoptotic cells. Mechanistically, the reduced edibility of apoptotic cells, insufficient phagocytic capacity of phagocytes, downregulation of bridging molecules, and dysfunction in the polarization of macrophages lead to impaired efferocytosis in atherosclerotic plaques. This review focuses on the characteristics of efferocytosis in plaques and the therapeutic strategies aimed at promoting efferocytosis in atherosclerosis, which would provide novel insights for the development of antiatherosclerotic drugs based on efferocytosis.
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Jarr KU, Kojima Y, Weissman IL, Leeper NJ. 2021 Jeffrey M. Hoeg Award Lecture: Defining the Role of Efferocytosis in Cardiovascular Disease: A Focus on the CD47 (Cluster of Differentiation 47) Axis. Arterioscler Thromb Vasc Biol 2022; 42:e145-e154. [PMID: 35387480 DOI: 10.1161/atvbaha.122.317049] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
A key feature of atherogenesis is the accumulation of diseased and dying cells within the lesional necrotic core. While the burden of intraplaque apoptotic cells may be driven in part by an increase in programmed cell death, mounting evidence suggests that their presence may primarily be dictated by a defect in programmed cell removal, or efferocytosis. In this brief review, we will summarize the evidence suggesting that inflammation-dependent changes within the plaque render target cells inedible and reduce the appetite of lesional phagocytes. We will present the genetic causation studies, which indicate these phenomena promote lesion expansion and plaque vulnerability, and the interventional data which suggest that these processes can be reversed. Particular emphasis is provided related to the antiphagocytic CD47 (cluster of differentiation 47) do not eat me axis, which has emerged as a novel antiatherosclerotic translational target that is predicted to provide benefit independent of traditional cardiovascular risk factors.
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Affiliation(s)
- Kai-Uwe Jarr
- Department of Surgery, Division of Vascular Surgery, Stanford University School of Medicine, CA (K.-U.J., Y.K., N.J.L.)
| | - Yoko Kojima
- Department of Surgery, Division of Vascular Surgery, Stanford University School of Medicine, CA (K.-U.J., Y.K., N.J.L.)
| | - Irving L Weissman
- Stanford Institute for Stem Cell Biology and Regenerative Medicine (I.L.W.), Stanford University, CA
| | - Nicholas J Leeper
- Department of Surgery, Division of Vascular Surgery, Stanford University School of Medicine, CA (K.-U.J., Y.K., N.J.L.).,Stanford Cardiovascular Institute (N.J.L.), Stanford University, CA.,Department of Medicine, Division of Cardiovascular Medicine, Stanford University School of Medicine, CA (N.J.L.)
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Yin L, Wang L, Shi Z, Ji X, Liu L. The Role of Peroxisome Proliferator-Activated Receptor Gamma and Atherosclerosis: Post-translational Modification and Selective Modulators. Front Physiol 2022; 13:826811. [PMID: 35309069 PMCID: PMC8924581 DOI: 10.3389/fphys.2022.826811] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 02/11/2022] [Indexed: 11/13/2022] Open
Abstract
Atherosclerosis is the hallmark of cardiovascular disease (CVD) which is a leading cause of death in type 2 diabetes patients, and glycemic control is not beneficial in reducing the potential risk of CVD. Clinically, it was shown that Thiazolidinediones (TZDs), a class of peroxisome proliferator-activated receptor gamma (PPARγ) agonists, are insulin sensitizers with reducing risk of CVD, while the potential adverse effects, such as weight gain, fluid retention, bone loss, and cardiovascular risk, restricts its use in diabetic treatment. PPARγ, a ligand-activated nuclear receptor, has shown to play a crucial role in anti-atherosclerosis by promoting cholesterol efflux, repressing monocytes infiltrating into the vascular intima under endothelial layer, their transformation into macrophages, and inhibiting vascular smooth muscle cells proliferation as well as migration. The selective activation of subsets of PPARγ targets, such as through PPARγ post-translational modification, is thought to improve the safety profile of PPARγ agonists. Here, this review focuses on the significance of PPARγ activity regulation (selective activation and post-translational modification) in the occurrence, development and treatment of atherosclerosis, and further clarifies the value of PPARγ as a safe therapeutic target for anti-atherosclerosis especially in diabetic treatment.
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Affiliation(s)
- Liqin Yin
- School of Kinesiology, Shanghai University of Sport, Shanghai, China
| | - Lihui Wang
- Department of Medical Imaging, Shanghai East Hospital (East Hospital Affiliated to Tongji University), Tongji University, Shanghai, China
| | - Zunhan Shi
- School of Kinesiology, Shanghai University of Sport, Shanghai, China
| | - Xiaohui Ji
- School of Kinesiology, Shanghai University of Sport, Shanghai, China
| | - Longhua Liu
- School of Kinesiology, Shanghai University of Sport, Shanghai, China
- *Correspondence: Longhua Liu,
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12
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Mogilenko DA, Danko K, Larionova EE, Shavva VS, Kudriavtsev IV, Nekrasova EV, Burnusuz AV, Gorbunov NP, Trofimov AV, Zhakhov AV, Ivanov IA, Orlov SV. Differentiation of human macrophages with anaphylatoxin C3a impairs alternative M2 polarization and decreases lipopolysaccharide‐induced cytokine secretion. Immunol Cell Biol 2022; 100:186-204. [DOI: 10.1111/imcb.12534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Revised: 01/06/2022] [Accepted: 02/07/2022] [Indexed: 11/28/2022]
Affiliation(s)
- Denis A Mogilenko
- Department of Biochemistry Institute of Experimental Medicine St. Petersburg Russia
- Department of Embryology St. Petersburg State University St. Petersburg Russia
| | - Katerina Danko
- Department of Biochemistry Institute of Experimental Medicine St. Petersburg Russia
- Department of Cytology and Histology St. Petersburg State University St. Petersburg Russia
| | | | - Vladimir S Shavva
- Department of Biochemistry Institute of Experimental Medicine St. Petersburg Russia
| | - Igor V Kudriavtsev
- Department of Cytology and Histology St. Petersburg State University St. Petersburg Russia
- Department of Immunology Institute of Experimental Medicine St. Petersburg Russia
| | | | - Alexandra V Burnusuz
- Department of Biochemistry Institute of Experimental Medicine St. Petersburg Russia
- Department of Cytology and Histology St. Petersburg State University St. Petersburg Russia
- Department of Immunology Institute of Experimental Medicine St. Petersburg Russia
| | - Nikolay P Gorbunov
- The Research Institute of Highly Pure Biopreparations St. Petersburg Russia
| | | | | | | | - Sergey V Orlov
- Department of Biochemistry Institute of Experimental Medicine St. Petersburg Russia
- Department of Embryology St. Petersburg State University St. Petersburg Russia
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Dacic M, Shibu G, Rogatsky I. Physiological Convergence and Antagonism Between GR and PPARγ in Inflammation and Metabolism. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2022; 1390:123-141. [PMID: 36107316 DOI: 10.1007/978-3-031-11836-4_7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Nuclear receptors (NRs) are transcription factors that modulate gene expression in a ligand-dependent manner. The ubiquitously expressed glucocorticoid receptor (GR) and peroxisome proliferator-activated receptor gamma (PPARγ) represent steroid (type I) and non-steroid (type II) classes of NRs, respectively. The diverse transcriptional and physiological outcomes of their activation are highly tissue-specific. For example, in subsets of immune cells, such as macrophages, the signaling of GR and PPARγ converges to elicit an anti-inflammatory phenotype; in contrast, in the adipose tissue, their signaling can lead to reciprocal metabolic outcomes. This review explores the cooperative and divergent outcomes of GR and PPARγ functions in different cell types and tissues, including immune cells, adipose tissue and the liver. Understanding the coordinated control of these NR pathways should advance studies in the field and potentially pave the way for developing new therapeutic approaches to exploit the GR:PPARγ crosstalk.
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Affiliation(s)
- Marija Dacic
- Hospital for Special Surgery Research Institute, The David Rosenzweig Genomics Center, New York, NY, USA
- Graduate Program in Physiology, Biophysics and Systems Biology, Weill Cornell Graduate School of Medical Sciences, New York, NY, USA
| | - Gayathri Shibu
- Hospital for Special Surgery Research Institute, The David Rosenzweig Genomics Center, New York, NY, USA
- Graduate Program in Immunology and Microbial Pathogenesis, Weill Cornell Graduate School of Medical Sciences, New York, NY, USA
| | - Inez Rogatsky
- Hospital for Special Surgery Research Institute, The David Rosenzweig Genomics Center, New York, NY, USA.
- Graduate Program in Immunology and Microbial Pathogenesis, Weill Cornell Graduate School of Medical Sciences, New York, NY, USA.
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14
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Nagatake T, Kishino S, Urano E, Murakami H, Kitamura N, Konishi K, Ohno H, Tiwari P, Morimoto S, Node E, Adachi J, Abe Y, Isoyama J, Sawane K, Honda T, Inoue A, Uwamizu A, Matsuzaka T, Miyamoto Y, Hirata SI, Saika A, Shibata Y, Hosomi K, Matsunaga A, Shimano H, Arita M, Aoki J, Oka M, Matsutani A, Tomonaga T, Kabashima K, Miyachi M, Yasutomi Y, Ogawa J, Kunisawa J. Intestinal microbe-dependent ω3 lipid metabolite αKetoA prevents inflammatory diseases in mice and cynomolgus macaques. Mucosal Immunol 2022; 15:289-300. [PMID: 35013573 PMCID: PMC8866125 DOI: 10.1038/s41385-021-00477-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2021] [Revised: 12/08/2021] [Accepted: 12/09/2021] [Indexed: 02/07/2023]
Abstract
Dietary ω3 fatty acids have important health benefits and exert their potent bioactivity through conversion to lipid mediators. Here, we demonstrate that microbiota play an essential role in the body's use of dietary lipids for the control of inflammatory diseases. We found that amounts of 10-hydroxy-cis-12-cis-15-octadecadienoic acid (αHYA) and 10-oxo-cis-12-cis-15-octadecadienoic acid (αKetoA) increased in the feces and serum of specific-pathogen-free, but not germ-free, mice when they were maintained on a linseed oil diet, which is high in α-linolenic acid. Intake of αKetoA, but not αHYA, exerted anti-inflammatory properties through a peroxisome proliferator-activated receptor (PPAR)γ-dependent pathway and ameliorated hapten-induced contact hypersensitivity by inhibiting the development of inducible skin-associated lymphoid tissue through suppression of chemokine secretion from macrophages and inhibition of NF-κB activation in mice and cynomolgus macaques. Administering αKetoA also improved diabetic glucose intolerance by inhibiting adipose tissue inflammation and fibrosis through decreased macrophage infiltration in adipose tissues and altering macrophage M1/M2 polarization in mice fed a high-fat diet. These results collectively indicate that αKetoA is a novel postbiotic derived from α-linolenic acid, which controls macrophage-associated inflammatory diseases and may have potential for developing therapeutic drugs as well as probiotic food products.
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Affiliation(s)
- Takahiro Nagatake
- Laboratory of Vaccine Materials, Center for Vaccine and Adjuvant Research and Laboratory of Gut Environmental System, National Institutes of Biomedical Innovation, Health and Nutrition (NIBIOHN), 7-6-8 Asagi Saito, Ibaraki, Osaka, 567-0085 Japan
| | - Shigenobu Kishino
- grid.258799.80000 0004 0372 2033Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University, Kitashirakawa-oiwakecho, Sakyo-ku, Kyoto, 606-8502 Japan
| | - Emiko Urano
- grid.482562.fLaboratory of Immunoregulation and Vaccine Research, Tsukuba Primate Research Center, NIBIOHN, 1-1 Hachimandai, Tsukuba, Ibaraki, 305-0843 Japan
| | - Haruka Murakami
- grid.482562.fDepartment of Physical Activity Research, NIBIOHN, 1-23-1 Toyama, Shinjuku-ku, Tokyo, 162-8636 Japan
| | - Nahoko Kitamura
- grid.258799.80000 0004 0372 2033Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University, Kitashirakawa-oiwakecho, Sakyo-ku, Kyoto, 606-8502 Japan
| | - Kana Konishi
- grid.482562.fDepartment of Physical Activity Research, NIBIOHN, 1-23-1 Toyama, Shinjuku-ku, Tokyo, 162-8636 Japan
| | - Harumi Ohno
- grid.482562.fDepartment of Physical Activity Research, NIBIOHN, 1-23-1 Toyama, Shinjuku-ku, Tokyo, 162-8636 Japan
| | - Prabha Tiwari
- Laboratory of Vaccine Materials, Center for Vaccine and Adjuvant Research and Laboratory of Gut Environmental System, National Institutes of Biomedical Innovation, Health and Nutrition (NIBIOHN), 7-6-8 Asagi Saito, Ibaraki, Osaka, 567-0085 Japan
| | - Sakiko Morimoto
- Laboratory of Vaccine Materials, Center for Vaccine and Adjuvant Research and Laboratory of Gut Environmental System, National Institutes of Biomedical Innovation, Health and Nutrition (NIBIOHN), 7-6-8 Asagi Saito, Ibaraki, Osaka, 567-0085 Japan
| | - Eri Node
- Laboratory of Vaccine Materials, Center for Vaccine and Adjuvant Research and Laboratory of Gut Environmental System, National Institutes of Biomedical Innovation, Health and Nutrition (NIBIOHN), 7-6-8 Asagi Saito, Ibaraki, Osaka, 567-0085 Japan
| | - Jun Adachi
- Laboratory of Proteome Research and Laboratory of Proteomics for Drug Discovery, NIBIOHN, 7-6-8 Asagi Saito, Ibaraki, Osaka, 567-0085 Japan
| | - Yuichi Abe
- Laboratory of Proteome Research and Laboratory of Proteomics for Drug Discovery, NIBIOHN, 7-6-8 Asagi Saito, Ibaraki, Osaka, 567-0085 Japan ,grid.410800.d0000 0001 0722 8444Division of Molecular Diagnostics, Aichi Cancer Center Research Institute, 1-1 Kanokoden, Chikusa-ku, Nagoya, 464-8681 Japan
| | - Junko Isoyama
- Laboratory of Proteome Research and Laboratory of Proteomics for Drug Discovery, NIBIOHN, 7-6-8 Asagi Saito, Ibaraki, Osaka, 567-0085 Japan
| | - Kento Sawane
- Laboratory of Vaccine Materials, Center for Vaccine and Adjuvant Research and Laboratory of Gut Environmental System, National Institutes of Biomedical Innovation, Health and Nutrition (NIBIOHN), 7-6-8 Asagi Saito, Ibaraki, Osaka, 567-0085 Japan ,grid.136593.b0000 0004 0373 3971Graduate School of Pharmaceutical Sciences, Osaka University, 1-1 Yamadaoka, Suita, Osaka, 565-0871 Japan
| | - Tetsuya Honda
- grid.258799.80000 0004 0372 2033Department of Dermatology, Kyoto University Graduate School of Medicine, 54 Shogoin Kawara-cho, Kyoto, 606-8507 Japan ,grid.505613.40000 0000 8937 6696Department of Dermatology, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, Shizuoka, 431-3192 Japan
| | - Asuka Inoue
- grid.69566.3a0000 0001 2248 6943Department of Molecular and Cellular Biochemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi 980-8578 Japan
| | - Akiharu Uwamizu
- grid.69566.3a0000 0001 2248 6943Department of Molecular and Cellular Biochemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi 980-8578 Japan ,grid.26999.3d0000 0001 2151 536XGraduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033 Japan
| | - Takashi Matsuzaka
- grid.20515.330000 0001 2369 4728Department of Endocrinology and Metabolism, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575 Japan ,grid.20515.330000 0001 2369 4728Transborder Medical Research Center, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575 Japan
| | - Yoichi Miyamoto
- Laboratory of Nuclear Transport Dynamics, NIBIOHN, 7-6-8 Asagi Saito, Ibaraki, Osaka, 567-0085 Japan
| | - So-ichiro Hirata
- Laboratory of Vaccine Materials, Center for Vaccine and Adjuvant Research and Laboratory of Gut Environmental System, National Institutes of Biomedical Innovation, Health and Nutrition (NIBIOHN), 7-6-8 Asagi Saito, Ibaraki, Osaka, 567-0085 Japan ,grid.31432.370000 0001 1092 3077Department of Microbiology and Immunology, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017 Japan
| | - Azusa Saika
- Laboratory of Vaccine Materials, Center for Vaccine and Adjuvant Research and Laboratory of Gut Environmental System, National Institutes of Biomedical Innovation, Health and Nutrition (NIBIOHN), 7-6-8 Asagi Saito, Ibaraki, Osaka, 567-0085 Japan ,grid.136593.b0000 0004 0373 3971Graduate School of Pharmaceutical Sciences, Osaka University, 1-1 Yamadaoka, Suita, Osaka, 565-0871 Japan
| | - Yuki Shibata
- Laboratory of Vaccine Materials, Center for Vaccine and Adjuvant Research and Laboratory of Gut Environmental System, National Institutes of Biomedical Innovation, Health and Nutrition (NIBIOHN), 7-6-8 Asagi Saito, Ibaraki, Osaka, 567-0085 Japan ,grid.136593.b0000 0004 0373 3971Graduate School of Pharmaceutical Sciences, Osaka University, 1-1 Yamadaoka, Suita, Osaka, 565-0871 Japan
| | - Koji Hosomi
- Laboratory of Vaccine Materials, Center for Vaccine and Adjuvant Research and Laboratory of Gut Environmental System, National Institutes of Biomedical Innovation, Health and Nutrition (NIBIOHN), 7-6-8 Asagi Saito, Ibaraki, Osaka, 567-0085 Japan
| | - Ayu Matsunaga
- Laboratory of Vaccine Materials, Center for Vaccine and Adjuvant Research and Laboratory of Gut Environmental System, National Institutes of Biomedical Innovation, Health and Nutrition (NIBIOHN), 7-6-8 Asagi Saito, Ibaraki, Osaka, 567-0085 Japan ,grid.412904.a0000 0004 0606 9818Faculty of Agriculture, Takasaki University of Health and Welfare, 54 Nakaoruimachi, Takasaki, Gumma 370-0033 Japan
| | - Hitoshi Shimano
- grid.20515.330000 0001 2369 4728Department of Endocrinology and Metabolism, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575 Japan
| | - Makoto Arita
- grid.26091.3c0000 0004 1936 9959Division of Physiological Chemistry and Metabolism, Keio University Faculty of Pharmacy, 1-5-30 Shibakouen, Minato-ku, Tokyo, 105-8512 Japan ,grid.509459.40000 0004 0472 0267Laboratory for Metabolomics, RIKEN Center for Integrative Medical Sciences, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045 Japan ,grid.268441.d0000 0001 1033 6139Cellular and Molecular Epigenetics Laboratory, Graduate School of Medical Life Science, Yokohama City University, 1-7-29 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045 Japan
| | - Junken Aoki
- grid.69566.3a0000 0001 2248 6943Department of Molecular and Cellular Biochemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi 980-8578 Japan ,grid.26999.3d0000 0001 2151 536XGraduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033 Japan
| | - Masahiro Oka
- Laboratory of Nuclear Transport Dynamics, NIBIOHN, 7-6-8 Asagi Saito, Ibaraki, Osaka, 567-0085 Japan
| | - Akira Matsutani
- Department of Internal Medicine, Shunan City Shin-nanyo Hospital, 2-3-15 Miyanomae, Shunan, Yamaguchi, 746-0017 Japan
| | - Takeshi Tomonaga
- Laboratory of Proteome Research and Laboratory of Proteomics for Drug Discovery, NIBIOHN, 7-6-8 Asagi Saito, Ibaraki, Osaka, 567-0085 Japan
| | - Kenji Kabashima
- grid.258799.80000 0004 0372 2033Department of Dermatology, Kyoto University Graduate School of Medicine, 54 Shogoin Kawara-cho, Kyoto, 606-8507 Japan
| | - Motohiko Miyachi
- grid.482562.fDepartment of Physical Activity Research, NIBIOHN, 1-23-1 Toyama, Shinjuku-ku, Tokyo, 162-8636 Japan
| | - Yasuhiro Yasutomi
- grid.482562.fLaboratory of Immunoregulation and Vaccine Research, Tsukuba Primate Research Center, NIBIOHN, 1-1 Hachimandai, Tsukuba, Ibaraki, 305-0843 Japan
| | - Jun Ogawa
- grid.258799.80000 0004 0372 2033Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University, Kitashirakawa-oiwakecho, Sakyo-ku, Kyoto, 606-8502 Japan
| | - Jun Kunisawa
- Laboratory of Vaccine Materials, Center for Vaccine and Adjuvant Research and Laboratory of Gut Environmental System, National Institutes of Biomedical Innovation, Health and Nutrition (NIBIOHN), 7-6-8 Asagi Saito, Ibaraki, Osaka, 567-0085 Japan ,grid.136593.b0000 0004 0373 3971Graduate School of Pharmaceutical Sciences, Osaka University, 1-1 Yamadaoka, Suita, Osaka, 565-0871 Japan ,grid.31432.370000 0001 1092 3077Department of Microbiology and Immunology, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017 Japan ,grid.26999.3d0000 0001 2151 536XInternational Research and Development Center for Mucosal Vaccines, The Institute of Medical Science, The University of Tokyo, 4-6-1 Shirokanedai, Minato-ku, Tokyo, 108-8639 Japan ,grid.136593.b0000 0004 0373 3971Graduate School of Medicine, Graduate School of Dentistry, Osaka University, 1-1 Yamadaoka, Suita, Osaka, 565-0871 Japan ,grid.5290.e0000 0004 1936 9975Research Organization for Nano and Life Innovation, Waseda University, Tokyo, 162-0041 Japan
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15
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MED1 Deficiency in Macrophages Accelerates Intimal Hyperplasia via ROS Generation and Inflammation. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:3010577. [PMID: 34853629 PMCID: PMC8629658 DOI: 10.1155/2021/3010577] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 10/17/2021] [Accepted: 11/07/2021] [Indexed: 11/17/2022]
Abstract
Mediator complex subunit 1 (MED1) is a component of the mediator complex and functions as a coactivator involved in the regulated transcription of nearly all RNA polymerase II-dependent genes. Previously, we showed that MED1 in macrophages has a protective effect on atherosclerosis; however, the effect of MED1 on intimal hyperplasia and mechanisms regulating proinflammatory cytokine production after macrophage MED1 deletion are still unknown. In this study, we report that MED1 macrophage-specific knockout (MED1 ΔMac) mice showed aggravated neointimal hyperplasia, vascular smooth muscle cells (VSMCs), and macrophage accumulation in injured arteries. Moreover, MED1 ΔMac mice showed increased proinflammatory cytokine production after an injury to the artery. After lipopolysaccharide (LPS) treatment, MED1 ΔMac macrophages showed increased generation of reactive oxygen species (ROS) and reduced expression of peroxisome proliferative activated receptor gamma coactivator-1α (PGC1α) and antioxidant enzymes, including catalase and glutathione reductase. The overexpression of PGC1α attenuated the effects of MED1 deficiency in macrophages. In vitro, conditioned media from MED1 ΔMac macrophages induced more proliferation and migration of VSMCs. To explore the potential mechanisms by which MED1 affects inflammation, macrophages were treated with BAY11-7082 before LPS treatment, and the results showed that MED1 ΔMac macrophages exhibited increased expression of phosphorylated-p65 and phosphorylated signal transducer and activator of transcription 1 (p-STAT1) compared with the control macrophages, suggesting the enhanced activation of NF-κB and STAT1. In summary, these data showed that MED1 deficiency enhanced inflammation and the proliferation and migration of VSMCs in injured vascular tissue, which may result from the activation of NF-κB and STAT1 due to the accumulation of ROS.
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16
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Sangphech N, Sillapachaiyaporn C, Nilkhet S, Chuchawankul S. Auricularia polytricha ethanol crude extract from sequential maceration induces lipid accumulation and inflammatory suppression in RAW264.7 macrophages. Food Funct 2021; 12:10563-10570. [PMID: 34571527 DOI: 10.1039/d0fo02574g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Auricularia polytricha (AP), an edible mushroom, is continuously being studied due to the medicinal properties. In this study, AP crude extracts from three sequential extraction, starting from hexane (APH), ethanol (APE) and water (APW), were examined for their anti-inflammatory activity and lipid accumulation property in macrophages. APE treatment was found to increase lipid droplet accumulation in both RAW264.7 and LPS-stimulated RAW264.7 cells in a dose dependent manner. Furthermore, nitric oxide production upon LPS stimulation was suppressed on APE pre-treatment. LC-MS analysis was performed to identify the potential bioactive compounds in APE. The PPARγ agonist, 15-Deoxy-Δ12,14-prostaglandin J2-2-glycerol ester (15d-PGJ2-G), was uniquely presented in APE, which was previously described to bind with PPARγ and induces lipid uptake via the upregulation of Cd36. We found that pre-treatment with APE also showed an increase in Cd36 mRNA in RAW264.7 cells, indicating that 15d-PGJ2-G is the potential active compound found in AP. In conclusion, APE exhibited the induction of lipid uptake via CD36, resulting in lipid accumulation.
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Affiliation(s)
- Naunpun Sangphech
- Medical Technology, School of Allied Health Sciences, Walailak University, 222 Thaiburi, Thasala, Nakorn Si Thammarat, 80160, Thailand
| | - Chanin Sillapachaiyaporn
- Program in Clinical Biochemistry and Molecular Medicine, Department of Clinical Chemistry, Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Sunita Nilkhet
- Program in Clinical Biochemistry and Molecular Medicine, Department of Clinical Chemistry, Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Siriporn Chuchawankul
- Department of Transfusion Medicine and Clinical Microbiology, Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok, 10330, Thailand.,Immunomodulation of Natural Products Research Group, Chulalongkorn University, Bangkok, 10330, Thailand.
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17
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Shi F, Simandi Z, Nagy L, Collins S. Diet-dependent natriuretic peptide receptor C expression in adipose tissue is mediated by PPARγ via long-range distal enhancers. J Biol Chem 2021; 297:100941. [PMID: 34245781 PMCID: PMC8326739 DOI: 10.1016/j.jbc.2021.100941] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 06/18/2021] [Accepted: 07/06/2021] [Indexed: 02/08/2023] Open
Abstract
The cardiac natriuretic peptides (NPs) are well established as regulators of blood pressure and fluid volume, but they also stimulate adipocyte lipolysis and control the gene program of nonshivering thermogenesis in brown adipose tissue. The NP "clearance" receptor C (NPRC) functions to clear NPs from the circulation via peptide internalization and degradation and thus is an important regulator of NP signaling and adipocyte metabolism. It is well known that the Nprc gene is highly expressed in adipose tissue and dynamically regulated upon nutrition and environmental changes. However, the molecular basis for how Nprc gene expression is regulated is still poorly understood. Here, we identified the nuclear receptor transcription factor peroxisome proliferator-activated receptor gamma (PPARγ) as a transcriptional regulator of Nprc expression in mouse adipocytes. During 3T3-L1 adipocyte differentiation, levels of Nprc expression increase in parallel with PPARγ induction. Rosiglitazone, a classic PPARγ agonist, increases, whereas siRNA knockdown of PPARγ reduces, Nprc expression in 3T3-L1 adipocytes. By using chromosome conformation capture and luciferase reporter assays, we demonstrate that PPARγ controls Nprc gene expression in adipocytes through its long-range distal enhancers. Furthermore, the induction of Nprc expression in adipose tissue during high-fat diet feeding is found to be associated with increased PPARγ enhancer activity. Our findings define PPARγ as a mediator of adipocyte Nprc gene expression and establish a new connection between PPARγ and the control of adipocyte NP signaling in obesity.
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Affiliation(s)
- Fubiao Shi
- Division of Cardiovascular Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA; Integrative Metabolism Program, Sanford Burnham Prebys Medical Discovery Institute, Orlando, Florida, USA
| | - Zoltan Simandi
- Integrative Metabolism Program, Sanford Burnham Prebys Medical Discovery Institute, Orlando, Florida, USA
| | - Laszlo Nagy
- Departments of Medicine and Biological Chemistry, Johns Hopkins University School of Medicine, Johns Hopkins All Children's Hospital, Saint Petersburg, Florida, USA; Institute for Fundamental Biomedical Research, Johns Hopkins All Children's Hospital, Saint Petersburg, Florida, USA; Integrative Metabolism Program, Sanford Burnham Prebys Medical Discovery Institute, Orlando, Florida, USA
| | - Sheila Collins
- Division of Cardiovascular Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA; Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, Tennessee, USA; Integrative Metabolism Program, Sanford Burnham Prebys Medical Discovery Institute, Orlando, Florida, USA.
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18
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Blackburn CMR, Schilke RM, Vozenilek AE, Chandran S, Bamgbose TT, Finck BN, Woolard MD. Myeloid-associated lipin-1 transcriptional co-regulatory activity is atheroprotective. Atherosclerosis 2021; 330:76-84. [PMID: 34256308 DOI: 10.1016/j.atherosclerosis.2021.06.927] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 05/27/2021] [Accepted: 06/30/2021] [Indexed: 12/23/2022]
Abstract
BACKGROUND AND AIMS Atherosclerosis is the most prominent underlying cause of cardiovascular disease (CVD). It is initiated by cholesterol deposition in the arterial intima, which causes macrophage recruitment and proinflammatory responses that promote plaque growth, necrotic core formation, and plaque rupture. Lipin-1 is a phosphatidic acid phosphohydrolase for glycerolipid synthesis. We have shown that lipin-1 phosphatase activity promotes macrophage pro-inflammatory responses when stimulated with modified low-density lipoprotein (modLDL) and accelerates atherosclerosis. Lipin-1 also independently acts as a transcriptional co-regulator where it enhances the expression of genes involved in β-oxidation. In hepatocytes and adipocytes, lipin-1 augments the activity of transcription factors such as peroxisome proliferator-activated receptor (PPARs). PPARs control the expression of anti-inflammatory genes in macrophages and slow or reduce atherosclerotic progression. Therefore, we hypothesize myeloid-derived lipin-1 transcriptional co-regulatory activity reduces atherosclerosis. METHODS We used myeloid-derived lipin-1 knockout (lipin-1mKO) and littermate control mice and AAV8-PCSK9 along with high-fat diet to elicit atherosclerosis. RESULTS Lipin-1mKO mice had larger aortic root plaques than littermate control mice after 8 and 12 weeks of a high-fat diet. Lipin-1mKO mice also had increased serum proinflammatory cytokine concentrations, reduced apoptosis in plaques, and larger necrotic cores in the plaques compared to control mice. CONCLUSIONS Combined, the data suggest lipin-1 transcriptional co-regulatory activity in myeloid cells is atheroprotective.
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Affiliation(s)
- Cassidy M R Blackburn
- Department of Microbiology and Immunology, Louisiana State University Health Sciences Center, Shreveport, LA, United States
| | - Robert M Schilke
- Department of Microbiology and Immunology, Louisiana State University Health Sciences Center, Shreveport, LA, United States
| | - Aimee E Vozenilek
- Department of Microbiology and Immunology, Louisiana State University Health Sciences Center, Shreveport, LA, United States
| | - Sunitha Chandran
- Department of Microbiology and Immunology, Louisiana State University Health Sciences Center, Shreveport, LA, United States
| | - Temitayo T Bamgbose
- Department of Microbiology and Immunology, Louisiana State University Health Sciences Center, Shreveport, LA, United States
| | - Brian N Finck
- Division of Geriatrics and Nutritional Science, Washington University School of Medicine, St. Louis, MO, United States
| | - Matthew D Woolard
- Department of Microbiology and Immunology, Louisiana State University Health Sciences Center, Shreveport, LA, United States.
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19
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Bonfield TL, Sutton MT, Fletcher DR, Folz MA, Ragavapuram V, Somoza RA, Caplan AI. Donor-defined mesenchymal stem cell antimicrobial potency against nontuberculous mycobacterium. Stem Cells Transl Med 2021; 10:1202-1216. [PMID: 33943038 PMCID: PMC8284776 DOI: 10.1002/sctm.20-0521] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 03/02/2021] [Accepted: 03/22/2021] [Indexed: 12/12/2022] Open
Abstract
Chronic nontuberculous mycobacterial infections with Mycobacterium avium and Mycobacterium intracellulare complicate bronchiectasis, chronic obstructive airway disease, and the health of aging individuals. These insidious intracellular pathogens cause considerable morbidity and eventual mortality in individuals colonized with these bacteria. Current treatment regimens with antibiotic macrolides are both toxic and often inefficient at providing infection resolution. In this article, we demonstrate that human marrow‐derived mesenchymal stem cells are antimicrobial and anti‐inflammatory in vitro and in the context of an in vivo sustained infection of either M. avium and/or M. intracellulare.
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Affiliation(s)
- Tracey L Bonfield
- Department of Genetics and Genome Sciences, Case Western Reserve University, Cleveland, Ohio, USA.,National Center for Regenerative Medicine, Case Western Reserve University, Cleveland, Ohio, USA.,Department of Pediatrics, Case Western Reserve University, Cleveland, Ohio, USA
| | - Morgan T Sutton
- Department of Genetics and Genome Sciences, Case Western Reserve University, Cleveland, Ohio, USA.,National Center for Regenerative Medicine, Case Western Reserve University, Cleveland, Ohio, USA.,Department of Pediatrics, Case Western Reserve University, Cleveland, Ohio, USA.,St. Jude Children's Research Hospital Graduate School of Biomedical Sciences, Memphis, Tennessee, USA
| | - David R Fletcher
- Department of Genetics and Genome Sciences, Case Western Reserve University, Cleveland, Ohio, USA.,National Center for Regenerative Medicine, Case Western Reserve University, Cleveland, Ohio, USA.,Department of Pediatrics, Case Western Reserve University, Cleveland, Ohio, USA
| | - Michael A Folz
- Department of Genetics and Genome Sciences, Case Western Reserve University, Cleveland, Ohio, USA.,National Center for Regenerative Medicine, Case Western Reserve University, Cleveland, Ohio, USA.,Department of Pediatrics, Case Western Reserve University, Cleveland, Ohio, USA
| | - Vaishnavi Ragavapuram
- Department of Genetics and Genome Sciences, Case Western Reserve University, Cleveland, Ohio, USA.,National Center for Regenerative Medicine, Case Western Reserve University, Cleveland, Ohio, USA.,Department of Pediatrics, Case Western Reserve University, Cleveland, Ohio, USA
| | - Rodrigo A Somoza
- Department of Biology, Skeletal Research Center, Case Western Reserve University, Cleveland, Ohio, USA
| | - Arnold I Caplan
- Department of Biology, Skeletal Research Center, Case Western Reserve University, Cleveland, Ohio, USA
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20
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Fang S, Livergood MC, Nakagawa P, Wu J, Sigmund CD. Role of the Peroxisome Proliferator Activated Receptors in Hypertension. Circ Res 2021; 128:1021-1039. [PMID: 33793338 DOI: 10.1161/circresaha.120.318062] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Nuclear receptors represent a large family of ligand-activated transcription factors which sense the physiological environment and make long-term adaptations by mediating changes in gene expression. In this review, we will first discuss the fundamental mechanisms by which nuclear receptors mediate their transcriptional responses. We will focus on the PPAR (peroxisome proliferator-activated receptor) family of adopted orphan receptors paying special attention to PPARγ, the isoform with the most compelling evidence as an important regulator of arterial blood pressure. We will review genetic data showing that rare mutations in PPARγ cause severe hypertension and clinical trial data which show that PPARγ activators have beneficial effects on blood pressure. We will detail the tissue- and cell-specific molecular mechanisms by which PPARs in the brain, kidney, vasculature, and immune system modulate blood pressure and related phenotypes, such as endothelial function. Finally, we will discuss the role of placental PPARs in preeclampsia, a life threatening form of hypertension during pregnancy. We will close with a viewpoint on future research directions and implications for developing novel therapies.
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Affiliation(s)
- Shi Fang
- Department of Physiology, Cardiovascular Center (S.F., P.N., J.W., C.D.S.), Medical College of Wisconsin, Milwaukee.,Department of Neuroscience and Pharmacology, University of Iowa (S.F.)
| | - M Christine Livergood
- Department of Obstetrics and Gynecology (M.C.L.), Medical College of Wisconsin, Milwaukee
| | - Pablo Nakagawa
- Department of Physiology, Cardiovascular Center (S.F., P.N., J.W., C.D.S.), Medical College of Wisconsin, Milwaukee
| | - Jing Wu
- Department of Physiology, Cardiovascular Center (S.F., P.N., J.W., C.D.S.), Medical College of Wisconsin, Milwaukee
| | - Curt D Sigmund
- Department of Physiology, Cardiovascular Center (S.F., P.N., J.W., C.D.S.), Medical College of Wisconsin, Milwaukee
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21
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Oyarce C, Vizcaino-Castro A, Chen S, Boerma A, Daemen T. Re-polarization of immunosuppressive macrophages to tumor-cytotoxic macrophages by repurposed metabolic drugs. Oncoimmunology 2021; 10:1898753. [PMID: 33796407 PMCID: PMC7971325 DOI: 10.1080/2162402x.2021.1898753] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023] Open
Abstract
M2-like tumor-associated macrophages promote tumor progression by establishing an immunosuppressive tumor microenvironment. The phenotype and activity of immunosuppressive macrophages are related to their mitochondrial metabolism. Thus, we studied if drugs targeting mitochondrial metabolic pathways can repolarize macrophages from M2 into an M1-like phenotype or can prevent M0-to-M2 polarization. The drugs selected are clinically approved or in clinical trials and target M2-specific metabolic pathways: fatty acid oxidation (Perhexiline and Trimetazidine), glutaminolysis (CB-839), PPAR activation (HX531), and mitochondrial electron transport chain (VLX-600). Murine bone marrow-derived macrophages were either polarized to M2 using IL-4 in the presence of the drugs or polarized first into M2 and then treated with the drugs in presence of IFN-γ for re-polarization. Targeting both fatty acid oxidation with Perhexiline or the electron transport chain with VLX-600 in the presence of IFN-γ, impaired mitochondrial basal, and maximal respiration and resulted in M2 to M1-like re-polarization (increased iNOS expression, NO production, IL-23, IL-27, and TNF-α secretion), similar to LPS+IFN-γ re-polarization. Moreover, drug-induced macrophage re-polarization resulted in a strong tumor-cytotoxic activity. Furthermore, the polarization of M0- to M2-like macrophages was impaired by CB-839, Trimetazidine, HX531, and Perhexiline, while Hx531 and Perhexiline also reduced MCP-1 secretion. Our results show that by targeting cell metabolism, macrophages could be re-polarized from M2- into an anti-tumoral M1-like phenotype and that M0-to-M2 polarization could be prevented. Overall, this study provides rational for the use of clinically applicable drugs to change an immunosuppressive tumor environment into a pro-inflammatory tumor environment that could support cancer immunotherapies.
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Affiliation(s)
- Cesar Oyarce
- Department of Medical Microbiology and Infection Prevention, Tumor Virology and Cancer Immunotherapy, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Ana Vizcaino-Castro
- Department of Medical Microbiology and Infection Prevention, Tumor Virology and Cancer Immunotherapy, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Shipeng Chen
- Department of Medical Microbiology and Infection Prevention, Tumor Virology and Cancer Immunotherapy, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Annemarie Boerma
- Department of Medical Microbiology and Infection Prevention, Tumor Virology and Cancer Immunotherapy, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Toos Daemen
- Department of Medical Microbiology and Infection Prevention, Tumor Virology and Cancer Immunotherapy, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
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22
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Chen SY, Chen YZ, Lee YJ, Jiang CL, Lu SC, Lin FJ. Maternal hypercholesterolemia exacerbates atherosclerosis lesions in female offspring through potentiating macrophage polarization toward an inflammatory M1 phenotype. J Nutr Biochem 2020; 90:108575. [PMID: 33387610 DOI: 10.1016/j.jnutbio.2020.108575] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 11/24/2020] [Accepted: 12/03/2020] [Indexed: 10/22/2022]
Abstract
Maternal hypercholesterolemia induces early onset of cardiovascular diseases in offspring; however, its underlying mechanism remains poorly understood. We hypothesized that maternal hypercholesterolemia increases offspring susceptibility to atherosclerosis in adulthood through developmental modifications of macrophages. Female apolipoprotein E (ApoE)-deficient mice were fed a Western-type diet (WD) or a control diet (CD) prior to and throughout gestation and lactation. The offspring were all fed a WD after weaning. Sixteen-week-old female offspring of WD-fed dams showed a significant increase in atherosclerotic lesions of the aorta and aortic root compared with those of CD-fed dams. This effect was associated with increased macrophage accumulation within lesions, macrophage inflammation and an increase in circulating Ly6Chigh monocyte and F4/80 macrophage counts. We further evidenced that in utero WD exposure promoted macrophage polarization toward the M1 phenotype by elevating M1 markers (Cd86, Inos/Nos2) without affecting M2 markers (Cd206, Arg1). Proinflammatory cytokine synthesis was also enhanced in response to LPS. Finally, maternal WD intake strongly inhibited the macrophage expression of Pparg and Lxra, which was associated with aberrant DNA methylation of Lxra promoter. Our findings demonstrate that maternal hypercholesterolemia exacerbates atherosclerosis, in part by altering the epigenetic state of the macrophage genome of the offspring, imprinting gene expression, and changing macrophage polarization, which ultimately contributes to plaque macrophage burden.
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Affiliation(s)
- Sin-Yu Chen
- Department of Biochemical Science and Technology, National Taiwan University, Taipei, Taiwan
| | - Yi-Zhen Chen
- Department of Biochemical Science and Technology, National Taiwan University, Taipei, Taiwan
| | - Yi-Jing Lee
- Institute of Molecular and Cellular Biology, National Taiwan University, Taipei, Taiwan
| | - Chung-Lin Jiang
- Department of Biochemical Science and Technology, National Taiwan University, Taipei, Taiwan
| | - Shao-Chun Lu
- Department of Biochemistry and Molecular Biology, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Fu-Jung Lin
- Department of Biochemical Science and Technology, National Taiwan University, Taipei, Taiwan; Research Center for Development Biology and Regenerative Medicine, National Taiwan University, Taipei, Taiwan.
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23
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Santoro M, De Amicis F, Aquila S, Bonofiglio D. Peroxisome proliferator-activated receptor gamma expression along the male genital system and its role in male fertility. Hum Reprod 2020; 35:2072-2085. [PMID: 32766764 DOI: 10.1093/humrep/deaa153] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 05/28/2020] [Indexed: 12/14/2022] Open
Abstract
Peroxisome proliferator-activated receptor gamma (PPARγ) acts as a ligand activated transcription factor and regulates processes, such as energy homeostasis, cell proliferation and differentiation. PPARγ binds to DNA as a heterodimer with retinoid X receptor and it is activated by polyunsaturated fatty acids and fatty acid derivatives, such as prostaglandins. In addition, the insulin-sensitizing thiazolidinediones, such as rosiglitazone, are potent and specific activators of PPARγ. PPARγ is present along the hypothalamic-pituitary-testis axis and in the testis, where low levels in Leydig cells and higher levels in Sertoli cells as well as in germ cells have been found. High amounts of PPARγ were reported in the normal epididymis and in the prostate, but the receptor was almost undetectable in the seminal vesicles. Interestingly, in the human and in pig, PPARγ protein is highly expressed in ejaculated spermatozoa, suggesting a possible role of PPARγ signaling in the regulation of sperm biology. This implies that both natural and synthetic PPARγ ligands may act directly on sperm improving its performance. Given the close link between energy balance and reproduction, activation of PPARγ may have promising metabolic implications in male reproductive functions. In this review, we first describe PPARγ expression in different compartments of the male reproductive axis. Subsequently, we discuss the role of PPARγ in both physiological and several pathological conditions related to the male fertility.
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Affiliation(s)
- Marta Santoro
- Department of Pharmacy, Health and Nutritional Sciences (Department of Excellence, Italian Law 232/2016), Arcavacata di Rende, Cosenza 87036, Italy.,Centro Sanitario, University of Calabria, Arcavacata di Rende, Cosenza 87036, Italy
| | - Francesca De Amicis
- Department of Pharmacy, Health and Nutritional Sciences (Department of Excellence, Italian Law 232/2016), Arcavacata di Rende, Cosenza 87036, Italy
| | - Saveria Aquila
- Department of Pharmacy, Health and Nutritional Sciences (Department of Excellence, Italian Law 232/2016), Arcavacata di Rende, Cosenza 87036, Italy.,Centro Sanitario, University of Calabria, Arcavacata di Rende, Cosenza 87036, Italy
| | - Daniela Bonofiglio
- Department of Pharmacy, Health and Nutritional Sciences (Department of Excellence, Italian Law 232/2016), Arcavacata di Rende, Cosenza 87036, Italy.,Centro Sanitario, University of Calabria, Arcavacata di Rende, Cosenza 87036, Italy
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24
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Leuti A, Fazio D, Fava M, Piccoli A, Oddi S, Maccarrone M. Bioactive lipids, inflammation and chronic diseases. Adv Drug Deliv Rev 2020; 159:133-169. [PMID: 32628989 DOI: 10.1016/j.addr.2020.06.028] [Citation(s) in RCA: 142] [Impact Index Per Article: 35.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 06/09/2020] [Accepted: 06/25/2020] [Indexed: 02/08/2023]
Abstract
Endogenous bioactive lipids are part of a complex network that modulates a plethora of cellular and molecular processes involved in health and disease, of which inflammation represents one of the most prominent examples. Inflammation serves as a well-conserved defence mechanism, triggered in the event of chemical, mechanical or microbial damage, that is meant to eradicate the source of damage and restore tissue function. However, excessive inflammatory signals, or impairment of pro-resolving/anti-inflammatory pathways leads to chronic inflammation, which is a hallmark of chronic pathologies. All main classes of endogenous bioactive lipids - namely eicosanoids, specialized pro-resolving lipid mediators, lysoglycerophopsholipids and endocannabinoids - have been consistently involved in the chronic inflammation that characterises pathologies such as cancer, diabetes, atherosclerosis, asthma, as well as autoimmune and neurodegenerative disorders and inflammatory bowel diseases. This review gathers the current knowledge concerning the involvement of endogenous bioactive lipids in the pathogenic processes of chronic inflammatory pathologies.
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25
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Gao Q, Wei A, Chen F, Chen X, Ding W, Ding Z, Wu Z, Du R, Cao W. Enhancing PPARγ by HDAC inhibition reduces foam cell formation and atherosclerosis in ApoE deficient mice. Pharmacol Res 2020; 160:105059. [PMID: 32621955 DOI: 10.1016/j.phrs.2020.105059] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 06/15/2020] [Accepted: 06/29/2020] [Indexed: 12/12/2022]
Abstract
Atherosclerosis (AS) is a risky cardiovascular disease with limited treatment options. Various pan or type-selective histone deacetylase (HDAC) inhibitors are reportedly atheroprotective against atherosclerosis (AS); however, the key effectors and the main cellular processes that mediate the protective effects remain poorly defined. Here, we report that PPARγ (Peroxisome proliferator-activated receptor gamma), a transcription factor actively involved in lipid metabolism with strong tissue protective and anti-inflammation properties, is a critical mediator of the anti-AS effects by HDAC inhibition. We showed that a well-known pan-HDAC inhibitor TSA (Trichostatin A) reduced foam cell formation of macrophages that is accompanied by a marked elevation of PPARγ and its downstream cholesterol efflux transporter ABCA1 (ATP-binding membrane cassette transport protein A1) and ABCG1. In an AS model of ApoE-/- mice fed on high-fat diet, TSA treatment alleviated AS lesions, similarly increased PPARγ and the downstream cholesterol transporters and mitigated the induction of inflammatory cytokine TNFα and IL-1β. Exploring the potential cause of PPARγ elevation revealed that TSA induced the acetylation of C/EBPα (CCAAT enhancer binding protein alpha), the upstream regulator of PPARγ, through which it increased PPARγ transactivation. More importantly, we generated a strain of PPARγ/ApoE double knockout mice and demonstrated that lack of PPARγ abrogated the protective effects of TSA on foam cell formation of peritoneal macrophages and the AS pathogenesis. Taken together, these results unravel that C/EBPα and PPARγ are the HDAC-sensitive components of an epigenetic signaling pathway mediating foam cell formation and AS development, and suggest that targeting C/EBPα/PPARγ axis by HDAC inhibitors possesses therapeutic potentials in retarding the progression of AS and the related cardiovascular diseases.
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Affiliation(s)
- Qi Gao
- Center for Organ Fibrosis and Remodeling, Jiangsu Key Lab of Molecular Medicine, Nanjing University Medical School, Nanjing, 210093, China
| | - Ai Wei
- Center for Organ Fibrosis and Remodeling, Jiangsu Key Lab of Molecular Medicine, Nanjing University Medical School, Nanjing, 210093, China
| | - Fang Chen
- Center for Organ Fibrosis and Remodeling, Jiangsu Key Lab of Molecular Medicine, Nanjing University Medical School, Nanjing, 210093, China
| | - Xingren Chen
- Center for Organ Fibrosis and Remodeling, Jiangsu Key Lab of Molecular Medicine, Nanjing University Medical School, Nanjing, 210093, China
| | - Wenwen Ding
- Center for Organ Fibrosis and Remodeling, Jiangsu Key Lab of Molecular Medicine, Nanjing University Medical School, Nanjing, 210093, China
| | - Zhiquan Ding
- Center for Organ Fibrosis and Remodeling, Jiangsu Key Lab of Molecular Medicine, Nanjing University Medical School, Nanjing, 210093, China
| | - Zhiwei Wu
- Center for Organ Fibrosis and Remodeling, Jiangsu Key Lab of Molecular Medicine, Nanjing University Medical School, Nanjing, 210093, China
| | - Ronghui Du
- Center for Organ Fibrosis and Remodeling, Jiangsu Key Lab of Molecular Medicine, Nanjing University Medical School, Nanjing, 210093, China.
| | - Wangsen Cao
- Center for Organ Fibrosis and Remodeling, Jiangsu Key Lab of Molecular Medicine, Nanjing University Medical School, Nanjing, 210093, China.
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26
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Ng HP, Jennings S, Wellems D, Sun F, Xu J, Nauseef WM, Wang G. Myeloid CFTR loss-of-function causes persistent neutrophilic inflammation in cystic fibrosis. J Leukoc Biol 2020; 108:1777-1785. [PMID: 32531843 DOI: 10.1002/jlb.3a0520-193rr] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 05/07/2020] [Accepted: 05/08/2020] [Indexed: 01/04/2023] Open
Abstract
Persistent neutrophilic inflammation is a hallmark of cystic fibrosis (CF). However, the mechanisms underlying this outstanding pathology remain incompletely understood. Here, we report that CFTR in myeloid immune cells plays a pivotal role in control of neutrophilic inflammation. Myeloid CFTR-Knockout (Mye-Cftr-/-) mice and congenic wild-type (WT) mice were challenged peritoneally with zymosan particles at different doses, creating aseptic peritonitis with varied severity. A high-dose challenge resulted in significantly higher mortality in Mye-Cftr-/- mice, indicating an intrinsic defect in host control of inflammation in mice whose myeloid cells lack CF. The low-dose challenge demonstrated an impaired resolution of inflammation in Mye-Cftr-/- mice, reflected by a significant overproduction of proinflammatory cytokines, including neutrophil chemokines MIP-2 and KC, and sustained accumulation of neutrophils. Tracing neutrophil mobilization in vivo demonstrated that myeloid CF mice recruited significantly more neutrophils than did WT mice. Pulmonary challenge with zymosan elicited exuberant inflammation in the lung and recapitulated the findings from peritoneal challenge. To determine the major type of cell that was primarily responsible for the over-recruitment of neutrophils, we purified and cultured ex vivo zymosan-elicited peritoneal neutrophils and macrophages. The CF neutrophils produced significantly more MIP-2 than did the WT counterparts, and peripheral blood neutrophils isolated from myeloid CF mice also produced significantly more MIP-2 after zymosan stimulation in vitro. These data altogether suggest that CFTR dysfunction in myeloid immune cells, especially neutrophils, leads to hyperinflammation and excessive neutrophil mobilization in the absence of infection. Thus, dysregulated inflammation secondary to abnormal or absent CFTR in myeloid cells may underlie the clinically observed neutrophilic inflammation in CF.
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Affiliation(s)
- Hang Pong Ng
- Department of Microbiology, Immunology and Parasitology, Louisiana State University Health Sciences Center, New Orleans, Louisiana, USA
| | - Scott Jennings
- Department of Microbiology, Immunology and Parasitology, Louisiana State University Health Sciences Center, New Orleans, Louisiana, USA
| | - Dianne Wellems
- Department of Microbiology, Immunology and Parasitology, Louisiana State University Health Sciences Center, New Orleans, Louisiana, USA
| | - Fei Sun
- Department of Physiology, Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Jie Xu
- Center for Advanced Models for Translational Sciences and Therapeutics, University of Michigan Medical Center, University of Michigan Medical School, Ann Arbor, Michigan, USA
| | - William M Nauseef
- Department of Medicine, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, and Veterans Administration Medical Center, Iowa City, Iowa, USA
| | - Guoshun Wang
- Department of Microbiology, Immunology and Parasitology, Louisiana State University Health Sciences Center, New Orleans, Louisiana, USA
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27
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Yang Y, Zhou Q, Gao A, Chen L, Li L. Endoplasmic reticulum stress and focused drug discovery in cardiovascular disease. Clin Chim Acta 2020; 504:125-137. [PMID: 32017925 DOI: 10.1016/j.cca.2020.01.031] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 01/29/2020] [Accepted: 01/29/2020] [Indexed: 12/28/2022]
Abstract
Endoplasmic reticulum (ER) is an intracellular membranous organelle involved in the synthesis, folding, maturation and post-translation modification of secretory and transmembrane proteins. Therefore, ER is closely related to the maintenance of intracellular homeostasis and the good balance between health and diseases. Endoplasmic reticulum stress (ERS) occurs when unfolded/misfolded proteins accumulate after disturbance of ER environment. In response to ERS, cells trigger an adaptive response called the Unfolded protein response (UPR), which helps cells cope with the stress. In recent years, a large number of studies show that ERS can aggravate cardiovascular diseases. ERS-related proteins expression in cardiovascular diseases is on the rise. Therefore, down-regulation of ERS is critical for alleviating symptoms of cardiovascular diseases, which may be used in the near future to treat cardiovascular diseases. This article reviews the relationship between ERS and cardiovascular diseases and drugs that inhibit ERS. Furthermore, we detail the role of ERS inhibitors in the treatment of cardiovascular disease. Drugs that inhibit ERS are considered as promising strategies for the treatment of cardiovascular diseases.
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Affiliation(s)
- Yiyuan Yang
- Institute of Pharmacy and Pharmacology, Learning Key Laboratory for Pharmacoproteomics, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hengyang 421001, China
| | - Qionglin Zhou
- Institute of Pharmacy and Pharmacology, Learning Key Laboratory for Pharmacoproteomics, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hengyang 421001, China
| | - Anbo Gao
- Institute of Pharmacy and Pharmacology, Learning Key Laboratory for Pharmacoproteomics, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hengyang 421001, China
| | - Linxi Chen
- Institute of Pharmacy and Pharmacology, Learning Key Laboratory for Pharmacoproteomics, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hengyang 421001, China.
| | - Lanfang Li
- Institute of Pharmacy and Pharmacology, Learning Key Laboratory for Pharmacoproteomics, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hengyang 421001, China.
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28
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Babaev VR, Ding L, Zhang Y, May JM, Ramsey SA, Vickers KC, Linton MF. Loss of 2 Akt (Protein Kinase B) Isoforms in Hematopoietic Cells Diminished Monocyte and Macrophage Survival and Reduces Atherosclerosis in Ldl Receptor-Null Mice. Arterioscler Thromb Vasc Biol 2019; 39:156-169. [PMID: 30567482 DOI: 10.1161/atvbaha.118.312206] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Objective- Macrophages express 3 Akt (protein kinase B) isoforms, Akt1, Akt2, and Akt3, which display isoform-specific functions but may be redundant in terms of Akt survival signaling. We hypothesize that loss of 2 Akt isoforms in macrophages will suppress their ability to survive and modulate the development of atherosclerosis. Approach and Results- To test this hypothesis, we reconstituted male Ldlr-/- mice with double Akt2/Akt3 knockout hematopoietic cells expressing only the Akt1 isoform (Akt1only). There were no differences in body weight and plasma lipid levels between the groups after 8 weeks of the Western diet; however, Akt1only→ Ldlr-/- mice developed smaller (57.6% reduction) atherosclerotic lesions with more apoptotic macrophages than control mice transplanted with WT (wild type) cells. Next, male and female Ldlr-/- mice were reconstituted with double Akt1/Akt2 knockout hematopoietic cells expressing the Akt3 isoform (Akt3only). Female and male Akt3only→ Ldlr-/- recipients had significantly smaller (61% and 41%, respectively) lesions than the control WT→ Ldlr-/- mice. Loss of 2 Akt isoforms in hematopoietic cells resulted in markedly diminished levels of white blood cells, B cells, and monocytes and compromised viability of monocytes and peritoneal macrophages compared with WT cells. In response to lipopolysaccharides, macrophages with a single Akt isoform expressed low levels of inflammatory cytokines; however, Akt1only macrophages were distinct in expressing high levels of antiapoptotic Il10 compared with WT and Akt3only cells. Conclusions- Loss of 2 Akt isoforms in hematopoietic cells, preserving only a single Akt1 or Akt3 isoform, markedly compromises monocyte and macrophage viability and diminishes early atherosclerosis in Ldlr-/- mice.
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Affiliation(s)
- Vladimir R Babaev
- From the Atherosclerosis Research Unit, Division of Cardiovascular Medicine, Department of Medicine (V.R.B., L.D., Y.Z., J.M.M., K.C.V., M.F.L.), Vanderbilt University School of Medicine, Nashville, TN
| | - Lei Ding
- From the Atherosclerosis Research Unit, Division of Cardiovascular Medicine, Department of Medicine (V.R.B., L.D., Y.Z., J.M.M., K.C.V., M.F.L.), Vanderbilt University School of Medicine, Nashville, TN
| | - Youmin Zhang
- From the Atherosclerosis Research Unit, Division of Cardiovascular Medicine, Department of Medicine (V.R.B., L.D., Y.Z., J.M.M., K.C.V., M.F.L.), Vanderbilt University School of Medicine, Nashville, TN
| | - James M May
- From the Atherosclerosis Research Unit, Division of Cardiovascular Medicine, Department of Medicine (V.R.B., L.D., Y.Z., J.M.M., K.C.V., M.F.L.), Vanderbilt University School of Medicine, Nashville, TN.,Department of Molecular Physiology and Biophysics (J.M.M., K.C.V.), Vanderbilt University School of Medicine, Nashville, TN
| | - Stephen A Ramsey
- Department of Biomedical Sciences, Oregon State University, School of Electrical Engineering and Computer Science, Corvallis (S.A.R.)
| | - Kasey C Vickers
- From the Atherosclerosis Research Unit, Division of Cardiovascular Medicine, Department of Medicine (V.R.B., L.D., Y.Z., J.M.M., K.C.V., M.F.L.), Vanderbilt University School of Medicine, Nashville, TN.,Department of Molecular Physiology and Biophysics (J.M.M., K.C.V.), Vanderbilt University School of Medicine, Nashville, TN
| | - MacRae F Linton
- From the Atherosclerosis Research Unit, Division of Cardiovascular Medicine, Department of Medicine (V.R.B., L.D., Y.Z., J.M.M., K.C.V., M.F.L.), Vanderbilt University School of Medicine, Nashville, TN.,Department of Pharmacology (M.F.L.), Vanderbilt University School of Medicine, Nashville, TN
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29
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Cox N, Geissmann F. Macrophage ontogeny in the control of adipose tissue biology. Curr Opin Immunol 2019; 62:1-8. [PMID: 31670115 DOI: 10.1016/j.coi.2019.08.002] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Accepted: 08/07/2019] [Indexed: 02/06/2023]
Abstract
Macrophages are found in large numbers in the adipose tissue where they closely associate with the adipocytes and the vasculature. Adipose tissue macrophages are a heterogenous population of cells with 'hard wired' diversity brought upon by distinct developmental lineages. The purpose of this review is to provide a brief history of macrophages in control of adipose tissue metabolism with the emphasis on the importance of macrophage ontogeny.
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Affiliation(s)
- Nehemiah Cox
- Immunology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA.
| | - Frederic Geissmann
- Immunology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA; Weill Cornell Graduate School of Medical Sciences, New York, NY 10065, USA
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30
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Living on the Edge: Efferocytosis at the Interface of Homeostasis and Pathology. Immunity 2019; 50:1149-1162. [PMID: 31117011 DOI: 10.1016/j.immuni.2019.04.018] [Citation(s) in RCA: 212] [Impact Index Per Article: 42.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2019] [Revised: 04/13/2019] [Accepted: 04/29/2019] [Indexed: 01/23/2023]
Abstract
Nearly every tissue in the body undergoes routine turnover of cells as part of normal healthy living. The majority of these cells undergoing turnover die via apoptosis, and then are rapidly removed by phagocytes by the process of efferocytosis that is anti-inflammatory. However, a number of pathologies have recently been linked to defective clearance of apoptotic cells. Perturbed clearance arises for many reasons, including overwhelming of the clearance machinery, disruptions at different stages of efferocytosis, and responses of phagocytes during efferocytosis, all of which can alter the homeostatic tissue environment. This review covers linkages of molecules involved in the different phases of efferocytosis to disease pathologies that can arise due to their loss or altered function.
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31
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Wilson JL, Mayr HK, Weichhart T. Metabolic Programming of Macrophages: Implications in the Pathogenesis of Granulomatous Disease. Front Immunol 2019; 10:2265. [PMID: 31681260 PMCID: PMC6797840 DOI: 10.3389/fimmu.2019.02265] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Accepted: 09/09/2019] [Indexed: 12/16/2022] Open
Abstract
Metabolic reprogramming is rapidly gaining appreciation in the etiology of immune cell dysfunction in a variety of diseases. Tuberculosis, schistosomiasis, and sarcoidosis represent an important class of diseases characterized by the formation of granulomas, where macrophages are causatively implicated in disease pathogenesis. Recent studies support the incidence of macrophage metabolic reprogramming in granulomas of both infectious and non-infectious origin. These publications identify the mechanistic target of rapamycin (mTOR), as well as the major regulators of lipid metabolism and cellular energy balance, peroxisome proliferator receptor gamma (PPAR-γ) and adenosine monophosphate-activated protein kinase (AMPK), respectively, as key players in the pathological progression of granulomas. In this review, we present a comprehensive breakdown of emerging research on the link between macrophage cell metabolism and granulomas of different etiology, and how parallels can be drawn between different forms of granulomatous disease. In particular, we discuss the role of PPAR-γ signaling and lipid metabolism, which are currently the best-represented metabolic pathways in this context, and we highlight dysregulated lipid metabolism as a common denominator in granulomatous disease progression. This review therefore aims to highlight metabolic mechanisms of granuloma immune cell fate and open up research questions for the identification of potential therapeutic targets in the future.
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Affiliation(s)
- Jayne Louise Wilson
- Center for Pathobiochemistry and Genetics, Institute of Medical Genetics, Medical University of Vienna, Vienna, Austria
| | - Hannah Katharina Mayr
- Center for Pathobiochemistry and Genetics, Institute of Medical Genetics, Medical University of Vienna, Vienna, Austria
| | - Thomas Weichhart
- Center for Pathobiochemistry and Genetics, Institute of Medical Genetics, Medical University of Vienna, Vienna, Austria
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32
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van der Poel M, Ulas T, Mizee MR, Hsiao CC, Miedema SSM, Adelia, Schuurman KG, Helder B, Tas SW, Schultze JL, Hamann J, Huitinga I. Transcriptional profiling of human microglia reveals grey-white matter heterogeneity and multiple sclerosis-associated changes. Nat Commun 2019; 10:1139. [PMID: 30867424 PMCID: PMC6416318 DOI: 10.1038/s41467-019-08976-7] [Citation(s) in RCA: 188] [Impact Index Per Article: 37.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Accepted: 02/07/2019] [Indexed: 12/22/2022] Open
Abstract
Here we report the transcriptional profile of human microglia, isolated from normal-appearing grey matter (GM) and white matter (WM) of multiple sclerosis (MS) and non-neurological control donors, to find possible early changes related to MS pathology. Microglia show a clear region-specific profile, indicated by higher expression of type-I interferon genes in GM and higher expression of NF-κB pathway genes in WM. Transcriptional changes in MS microglia also differ between GM and WM. MS WM microglia show increased lipid metabolism gene expression, which relates to MS pathology since active MS lesion-derived microglial nuclei show similar altered gene expression. Microglia from MS GM show increased expression of genes associated with glycolysis and iron homeostasis, possibly reflecting microglia reacting to iron depositions. Except for ADGRG1/GPR56, expression of homeostatic genes, such as P2RY12 and TMEM119, is unaltered in normal-appearing MS tissue, demonstrating overall preservation of microglia homeostatic functions in the initiation phase of MS.
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Affiliation(s)
- Marlijn van der Poel
- Neuroimmunology Research Group, Netherlands Institute for Neuroscience, Meibergdreef 47, 1105BA, Amsterdam, The Netherlands
| | - Thomas Ulas
- Genomics and Immunoregulation, LIMES Institute, University of Bonn, Carl-Troll-Straße 31, 53115, Bonn, Germany
| | - Mark R Mizee
- Neuroimmunology Research Group, Netherlands Institute for Neuroscience, Meibergdreef 47, 1105BA, Amsterdam, The Netherlands
| | - Cheng-Chih Hsiao
- Department of Experimental Immunology, Amsterdam University Medical Centers, University of Amsterdam, Meibergdreef 9, 1105AZ, Amsterdam, The Netherlands
| | - Suzanne S M Miedema
- Neuroimmunology Research Group, Netherlands Institute for Neuroscience, Meibergdreef 47, 1105BA, Amsterdam, The Netherlands
| | - Adelia
- Netherlands Brain Bank, Netherlands Institute for Neuroscience, Meibergdreef 47, 1105BA, Amsterdam, The Netherlands
| | - Karianne G Schuurman
- Neuroimmunology Research Group, Netherlands Institute for Neuroscience, Meibergdreef 47, 1105BA, Amsterdam, The Netherlands
| | - Boy Helder
- Department of Experimental Immunology, Amsterdam University Medical Centers, University of Amsterdam, Meibergdreef 9, 1105AZ, Amsterdam, The Netherlands
- Department of Clinical Immunology and Rheumatology, Amsterdam Rheumatology and Immunology Center, Amsterdam University Medical Centers, University of Amsterdam, Meibergdreef 9, 1105AZ, Amsterdam, The Netherlands
| | - Sander W Tas
- Department of Experimental Immunology, Amsterdam University Medical Centers, University of Amsterdam, Meibergdreef 9, 1105AZ, Amsterdam, The Netherlands
- Department of Clinical Immunology and Rheumatology, Amsterdam Rheumatology and Immunology Center, Amsterdam University Medical Centers, University of Amsterdam, Meibergdreef 9, 1105AZ, Amsterdam, The Netherlands
| | - Joachim L Schultze
- Genomics and Immunoregulation, LIMES Institute, University of Bonn, Carl-Troll-Straße 31, 53115, Bonn, Germany
- PRECISE Platform for Single Cell Genomics and Epigenomics, German Center for Neurodegenerative Diseases, University of Bonn, Sigmund-Freud-Street 27, 53127, Bonn, Germany
| | - Jörg Hamann
- Neuroimmunology Research Group, Netherlands Institute for Neuroscience, Meibergdreef 47, 1105BA, Amsterdam, The Netherlands.
- Department of Experimental Immunology, Amsterdam University Medical Centers, University of Amsterdam, Meibergdreef 9, 1105AZ, Amsterdam, The Netherlands.
| | - Inge Huitinga
- Neuroimmunology Research Group, Netherlands Institute for Neuroscience, Meibergdreef 47, 1105BA, Amsterdam, The Netherlands.
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Sima C, Viniegra A, Glogauer M. Macrophage immunomodulation in chronic osteolytic diseases-the case of periodontitis. J Leukoc Biol 2019; 105:473-487. [PMID: 30452781 PMCID: PMC6386606 DOI: 10.1002/jlb.1ru0818-310r] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Revised: 10/26/2018] [Accepted: 10/29/2018] [Indexed: 12/12/2022] Open
Abstract
Periodontitis (PD) is a chronic osteolytic disease that shares pathogenic inflammatory features with other conditions associated with nonresolving inflammation. A hallmark of PD is inflammation-mediated alveolar bone loss. Myeloid cells, in particular polymorphonuclear neutrophils (PMN) and macrophages (Mac), are essential players in PD by control of gingival biofilm pathogenicity, activation of adaptive immunity, as well as nonresolving inflammation and collateral tissue damage. Despite mounting evidence of significant innate immune implications to PD progression and healing after therapy, myeloid cell markers and targets for immune modulation have not been validated for clinical use. The remarkable plasticity of monocytes/Mac in response to local activation factors enables these cells to play central roles in inflammation and restoration of tissue homeostasis and provides opportunities for biomarker and therapeutic target discovery for management of chronic inflammatory conditions, including osteolytic diseases such as PD and arthritis. Along a wide spectrum of activation states ranging from proinflammatory to pro-resolving, Macs respond to environmental changes in a site-specific manner in virtually all tissues. This review summarizes the existing evidence on Mac immunomodulation therapies for osteolytic diseases in the broader context of conditions associated with nonresolving inflammation, and discusses osteoimmune implications of Macs in PD.
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Affiliation(s)
- Corneliu Sima
- Department of Oral Medicine, Infection, and Immunity, Harvard School of Dental Medicine, Harvard Medical School, Boston, Massachusetts, USA
| | - Ana Viniegra
- Dental Research Institute, Faculty of Dentistry, University of Toronto, Toronto, ON, Canada
| | - Michael Glogauer
- Dental Research Institute, Faculty of Dentistry, University of Toronto, Toronto, ON, Canada
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Wang H, Yang Y, Sun X, Tian F, Guo S, Wang W, Tian Z, Jin H, Zhang Z, Tian Y. Sonodynamic therapy-induced foam cells apoptosis activates the phagocytic PPARγ-LXRα-ABCA1/ABCG1 pathway and promotes cholesterol efflux in advanced plaque. Am J Cancer Res 2018; 8:4969-4984. [PMID: 30429880 PMCID: PMC6217053 DOI: 10.7150/thno.26193] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Accepted: 09/10/2018] [Indexed: 01/09/2023] Open
Abstract
In advanced atherosclerotic plaques, defective efferocytosis of apoptotic foam cells and decreased cholesterol efflux contribute to lesion progression. In our previous study, we demonstrated that 5-aminolevulinic acid (ALA)-mediated sonodynamic therapy (SDT) could induce foam cells apoptosis via the mitochondrial-caspase pathway. In the current research, we sought to explore ALA-SDT-induced apoptosis of phagocytes and the effects of cholesterol efflux and efferocytosis in advanced apoE-/- mice plaque. Methods: apoE-/- mice fed western diet were treated with ALA-SDT and sacrificed at day 1, day 3, day 7 and day 28 post treatment. THP-1 macrophage-derived foam cells were treated with ALA-SDT. 5 hours later, the supernatant was collected and added to fresh foam cells (phagocytes). Then, the lipid area, efferocytosis, cholesterol efflux, anti-inflammatory reactions and PPARγ-LXRα-ABCA1/ABCG1 pathway were detected in plaque in vivo and in phagocytes in vitro. Results: We found that ALA-SDT induced foam cells apoptosis coupled with efferocytosis and upregulation of Mer tyrosine kinase (MerTK) both in vivo and in vitro. The lipid content in plaque decreased as early as 1 day after ALA-SDT and this tendency persisted until 28 days. The enhancement of phagocytes cholesterol efflux was accompanied by an approximately 40% decrease in free cholesterol and a 24% decrease in total cholesterol in vitro. More importantly, anti-inflammatory factors such as TGFβ and IL-10 were upregulated by ALA-SDT treatment. Finally, we found that PPARγ-LXRα-ABCA1/ABCG1 pathway was activated both in vivo and in vitro by ALA-SDT, which could be blocked by PPARγ siRNA. Conclusions: Activation of PPARγ-LXRα-ABCA1/ABCG1 pathway induced by ALA-SDT treatment engages a virtuous cycle that enhances efferocytosis, cholesterol efflux and anti-inflammatory reactions in advanced plaque in vivo and in phagocytes in vitro.
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35
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Weber KJ, Sauer M, He L, Tycksen E, Kalugotla G, Razani B, Schilling JD. PPARγ Deficiency Suppresses the Release of IL-1β and IL-1α in Macrophages via a Type 1 IFN-Dependent Mechanism. THE JOURNAL OF IMMUNOLOGY 2018; 201:2054-2069. [PMID: 30143592 DOI: 10.4049/jimmunol.1800224] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Accepted: 07/30/2018] [Indexed: 12/21/2022]
Abstract
Obesity and diabetes modulate macrophage activation, often leading to prolonged inflammation and dysfunctional tissue repair. Increasing evidence suggests that the NLRP3 inflammasome plays an important role in obesity-associated inflammation. We have previously shown that activation of the lipotoxic inflammasome by excess fatty acids in macrophages occurs via a lysosome-dependent pathway. However, the mechanisms that link cellular lipid metabolism to altered inflammation remain poorly understood. PPARγ is a nuclear receptor transcription factor expressed by macrophages that is known to alter lipid handling, mitochondrial function, and inflammatory cytokine expression. To undercover novel links between metabolic signaling and lipotoxic inflammasome activation, we investigated mouse primary macrophages deficient in PPARγ. Contrary to our expectation, PPARγ knockout (KO) macrophages released significantly less IL-1β and IL-1α in response to lipotoxic stimulation. The suppression occurred at the transcriptional level and was apparent for multiple activators of the NLRP3 inflammasome. RNA sequencing revealed upregulation of IFN-β in activated PPARγKO macrophages, and this was confirmed at the protein level. A blocking Ab against the type 1 IFNR restored the release of IL-1β to wild type levels in PPARγKO cells, confirming the mechanistic link between these events. Conversely, PPARγ activation with rosiglitazone selectively suppressed IFN-β expression in activated macrophages. Loss of PPARγ also resulted in diminished expression of genes involved in sterol biosynthesis, a pathway known to influence IFN production. Together, these findings demonstrate a cross-talk pathway that influences the interplay between metabolism and inflammation in macrophages.
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Affiliation(s)
- Kassandra J Weber
- Diabetic Cardiovascular Disease Center, Washington University School of Medicine, St. Louis, MO 63110.,Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110
| | - Madeline Sauer
- Diabetic Cardiovascular Disease Center, Washington University School of Medicine, St. Louis, MO 63110.,Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110
| | - Li He
- Diabetic Cardiovascular Disease Center, Washington University School of Medicine, St. Louis, MO 63110.,Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110
| | - Eric Tycksen
- Genome Technology Access Center, Washington University School of Medicine, St. Louis, MO 63110; and
| | - Gowri Kalugotla
- Diabetic Cardiovascular Disease Center, Washington University School of Medicine, St. Louis, MO 63110.,Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110
| | - Babak Razani
- Diabetic Cardiovascular Disease Center, Washington University School of Medicine, St. Louis, MO 63110.,Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110.,Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110
| | - Joel D Schilling
- Diabetic Cardiovascular Disease Center, Washington University School of Medicine, St. Louis, MO 63110; .,Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110.,Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110
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36
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Tajbakhsh A, Rezaee M, Kovanen PT, Sahebkar A. Efferocytosis in atherosclerotic lesions: Malfunctioning regulatory pathways and control mechanisms. Pharmacol Ther 2018; 188:12-25. [DOI: 10.1016/j.pharmthera.2018.02.003] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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37
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Nelson VL, Nguyen HCB, Garcìa-Cañaveras JC, Briggs ER, Ho WY, DiSpirito JR, Marinis JM, Hill DA, Lazar MA. PPARγ is a nexus controlling alternative activation of macrophages via glutamine metabolism. Genes Dev 2018; 32:1035-1044. [PMID: 30006480 PMCID: PMC6075146 DOI: 10.1101/gad.312355.118] [Citation(s) in RCA: 81] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Accepted: 05/24/2018] [Indexed: 01/04/2023]
Abstract
The nuclear receptor peroxisome proliferator-activated receptor γ (PPARγ) is known to regulate lipid metabolism in many tissues, including macrophages. Here we report that peritoneal macrophage respiration is enhanced by rosiglitazone, an activating PPARγ ligand, in a PPARγ-dependent manner. Moreover, PPARγ is required for macrophage respiration even in the absence of exogenous ligand. Unexpectedly, the absence of PPARγ dramatically affects the oxidation of glutamine. Both glutamine and PPARγ have been implicated in alternative activation (AA) of macrophages, and PPARγ was required for interleukin 4 (IL4)-dependent gene expression and stimulation of macrophage respiration. Indeed, unstimulated macrophages lacking PPARγ contained elevated levels of the inflammation-associated metabolite itaconate and express a proinflammatory transcriptome that, remarkably, phenocopied that of macrophages depleted of glutamine. Thus, PPARγ functions as a checkpoint, guarding against inflammation, and is permissive for AA by facilitating glutamine metabolism. However, PPARγ expression is itself markedly increased by IL4. This suggests that PPARγ functions at the center of a feed-forward loop that is central to AA of macrophages.
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Affiliation(s)
- Victoria L Nelson
- Institute for Diabetes, Obesity, and Metabolism, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
- Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, Philadelphia, Pennsylvania 19104, USA
| | - Hoang C B Nguyen
- Institute for Diabetes, Obesity, and Metabolism, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
- Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, Philadelphia, Pennsylvania 19104, USA
| | - Juan C Garcìa-Cañaveras
- Lewis-Sigler Institute for Integrative Genomics, Department of Chemistry, Princeton University, Princeton, New Jersey 08544, USA
| | - Erika R Briggs
- Institute for Diabetes, Obesity, and Metabolism, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
- Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, Philadelphia, Pennsylvania 19104, USA
| | - Wesley Y Ho
- Institute for Diabetes, Obesity, and Metabolism, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
- Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, Philadelphia, Pennsylvania 19104, USA
| | - Joanna R DiSpirito
- Institute for Diabetes, Obesity, and Metabolism, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
- Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, Philadelphia, Pennsylvania 19104, USA
| | - Jill M Marinis
- Institute for Diabetes, Obesity, and Metabolism, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
- Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, Philadelphia, Pennsylvania 19104, USA
| | - David A Hill
- Institute for Diabetes, Obesity, and Metabolism, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
- Division of Allergy and Immunology, Department of Pediatrics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania 19104, USA
| | - Mitchell A Lazar
- Institute for Diabetes, Obesity, and Metabolism, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
- Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, Philadelphia, Pennsylvania 19104, USA
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Fang P, Li X, Dai J, Cole L, Camacho JA, Zhang Y, Ji Y, Wang J, Yang XF, Wang H. Immune cell subset differentiation and tissue inflammation. J Hematol Oncol 2018; 11:97. [PMID: 30064449 PMCID: PMC6069866 DOI: 10.1186/s13045-018-0637-x] [Citation(s) in RCA: 108] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Accepted: 07/02/2018] [Indexed: 02/07/2023] Open
Abstract
Immune cells were traditionally considered as major pro-inflammatory contributors. Recent advances in molecular immunology prove that immune cell lineages are composed of different subsets capable of a vast array of specialized functions. These immune cell subsets share distinct duties in regulating innate and adaptive immune functions and contribute to both immune activation and immune suppression responses in peripheral tissue. Here, we summarized current understanding of the different subsets of major immune cells, including T cells, B cells, dendritic cells, monocytes, and macrophages. We highlighted molecular characterization, frequency, and tissue distribution of these immune cell subsets in human and mice. In addition, we described specific cytokine production, molecular signaling, biological functions, and tissue population changes of these immune cell subsets in both cardiovascular diseases and cancers. Finally, we presented a working model of the differentiation of inflammatory mononuclear cells, their interaction with endothelial cells, and their contribution to tissue inflammation. In summary, this review offers an updated and comprehensive guideline for immune cell development and subset differentiation, including subset characterization, signaling, modulation, and disease associations. We propose that immune cell subset differentiation and its complex interaction within the internal biological milieu compose a “pathophysiological network,” an interactive cross-talking complex, which plays a critical role in the development of inflammatory diseases and cancers.
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Affiliation(s)
- Pu Fang
- Center for Metabolic Disease Research, Lewis Kats School of Medicine, Temple University, Medical Education and Research Building, Room 1060, 3500 N. Broad Street, Philadelphia, PA, 19140, USA
| | - Xinyuan Li
- Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Jin Dai
- Center for Metabolic Disease Research, Lewis Kats School of Medicine, Temple University, Medical Education and Research Building, Room 1060, 3500 N. Broad Street, Philadelphia, PA, 19140, USA
| | - Lauren Cole
- Center for Metabolic Disease Research, Lewis Kats School of Medicine, Temple University, Medical Education and Research Building, Room 1060, 3500 N. Broad Street, Philadelphia, PA, 19140, USA
| | - Javier Andres Camacho
- Center for Metabolic Disease Research, Lewis Kats School of Medicine, Temple University, Medical Education and Research Building, Room 1060, 3500 N. Broad Street, Philadelphia, PA, 19140, USA
| | - Yuling Zhang
- Cardiovascular Medicine Department, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120, China
| | - Yong Ji
- Key Laboratory of Cardiovascular Disease and Molecular Intervention, Nanjing Medical University, Nanjing, China
| | - Jingfeng Wang
- Cardiovascular Medicine Department, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120, China
| | - Xiao-Feng Yang
- Center for Metabolic Disease Research, Lewis Kats School of Medicine, Temple University, Medical Education and Research Building, Room 1060, 3500 N. Broad Street, Philadelphia, PA, 19140, USA.,Department of Pharmacology, Lewis Kats School of Medicine, Temple University, Philadelphia, PA, USA
| | - Hong Wang
- Center for Metabolic Disease Research, Lewis Kats School of Medicine, Temple University, Medical Education and Research Building, Room 1060, 3500 N. Broad Street, Philadelphia, PA, 19140, USA. .,Department of Pharmacology, Lewis Kats School of Medicine, Temple University, Philadelphia, PA, USA.
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Chalcone Derivatives Enhance ATP-Binding Cassette Transporters A1 in Human THP-1 Macrophages. Molecules 2018; 23:molecules23071620. [PMID: 29970865 PMCID: PMC6100038 DOI: 10.3390/molecules23071620] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Revised: 06/20/2018] [Accepted: 06/29/2018] [Indexed: 12/25/2022] Open
Abstract
Atherosclerosis is a process of imbalanced lipid metabolism in the vascular walls. The underlying pathology mainly involves the deposition of oxidized lipids in the endothelium and the accumulation of cholesterol in macrophages. Macrophages export excessive cholesterol (cholesterol efflux) through ATP-binding cassette transporter A1 (ABCA1) to counter the progression of atherosclerosis. We synthesized novel chalcone derivatives and assessed their effects and the underlying mechanisms on ABCA1 expression in macrophages. Human THP-1 macrophages were treated with synthetic chalcone derivatives for 24 h. In Western blot and flow cytometry analyses, a chalcone derivative, (E)-1-(3,4-diisopropoxyphenyl)-3-(4-isopropoxy-3-methoxyphenyl)prop- 2-en-1-one (1m), was observed to significantly enhance ABCA1 protein expression in THP-1 cells (10 µM, 24 h). Levels of mRNA of ABCA1 and liver X receptor alpha (LXRα) were quantified using a real-time quantitative polymerase chain reaction technique and were found to be significantly increased after treatment with the novel chalcone derivative 1m. Several microRNAs, including miR155, miR758, miR10b, miR145, miR33, and miR106b, which functionally inhibit ABCA1 expression were suppressed after treatment with 1m. Collectively, 1m increases ABCA1 expression in human THP-1 macrophages. The mechanisms involve the activation of the LXRα-ABCA1 pathway and suppression of certain microRNAs that regulate ABCA1 expression.
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40
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Huang A, Patel S, McAlpine CS, Werstuck GH. The Role of Endoplasmic Reticulum Stress-Glycogen Synthase Kinase-3 Signaling in Atherogenesis. Int J Mol Sci 2018; 19:ijms19061607. [PMID: 29848965 PMCID: PMC6032052 DOI: 10.3390/ijms19061607] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Revised: 05/25/2018] [Accepted: 05/28/2018] [Indexed: 01/31/2023] Open
Abstract
Cardiovascular disease (CVD) is the number one cause of global mortality and atherosclerosis is the underlying cause of most CVD. However, the molecular mechanisms by which cardiovascular risk factors promote the development of atherosclerosis are not well understood. The development of new efficient therapies to directly block or slow disease progression will require a better understanding of these mechanisms. Accumulating evidence supports a role for endoplasmic reticulum (ER) stress in all stages of the developing atherosclerotic lesion however, it was not clear how ER stress may contribute to disease progression. Recent findings have shown that ER stress signaling through glycogen synthase kinase (GSK)-3α may significantly contribute to macrophage lipid accumulation, inflammatory cytokine production and M1macrophage polarization. In this review we summarize our knowledge of the potential role of ER stress-GSK3 signaling in the development and progression of atherosclerosis as well as the possible therapeutic implications of this pathway.
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Affiliation(s)
- Aric Huang
- Thrombosis and Atherosclerosis Research Institute, McMaster University, Hamilton, ON L9L 2X2, Canada.
| | - Sarvatit Patel
- Thrombosis and Atherosclerosis Research Institute, McMaster University, Hamilton, ON L9L 2X2, Canada.
- Department of Chemistry and Chemical Biology, McMaster University, Hamilton, ON L8S 4L8, Canada.
| | - Cameron S McAlpine
- Thrombosis and Atherosclerosis Research Institute, McMaster University, Hamilton, ON L9L 2X2, Canada.
| | - Geoff H Werstuck
- Thrombosis and Atherosclerosis Research Institute, McMaster University, Hamilton, ON L9L 2X2, Canada.
- Department of Chemistry and Chemical Biology, McMaster University, Hamilton, ON L8S 4L8, Canada.
- Department of Medicine, McMaster University, 1280 Main St W, Hamilton, ON L8S 4L8, Canada.
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41
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Regulation of Immune Cell Function by PPARs and the Connection with Metabolic and Neurodegenerative Diseases. Int J Mol Sci 2018; 19:ijms19061575. [PMID: 29799467 PMCID: PMC6032042 DOI: 10.3390/ijms19061575] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Revised: 05/16/2018] [Accepted: 05/23/2018] [Indexed: 01/01/2023] Open
Abstract
Increasing evidence points towards the existence of a bidirectional interconnection between metabolic disease and neurodegenerative disorders, in which inflammation is linking both together. Activation of members of the peroxisome proliferator-activated receptor (PPAR) family has been shown to have beneficial effects in these interlinked pathologies, and these improvements are often attributed to anti-inflammatory effects of PPAR activation. In this review, we summarize the role of PPARs in immune cell function, with a focus on macrophages and T cells, and how this was shown to contribute to obesity-associated inflammation and insulin resistance, atherosclerosis, and neurodegenerative disorders. We address gender differences as a potential explanation in observed contradictory results, and we highlight PPAR-induced metabolic changes as a potential mechanism of regulation of immune cell function through these nuclear receptors. Together, immune cell-specific activation of PPARs present a promising therapeutic approach to treat both metabolic and neurodegenerative diseases.
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42
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Heming M, Gran S, Jauch SL, Fischer-Riepe L, Russo A, Klotz L, Hermann S, Schäfers M, Roth J, Barczyk-Kahlert K. Peroxisome Proliferator-Activated Receptor-γ Modulates the Response of Macrophages to Lipopolysaccharide and Glucocorticoids. Front Immunol 2018; 9:893. [PMID: 29867927 PMCID: PMC5949563 DOI: 10.3389/fimmu.2018.00893] [Citation(s) in RCA: 88] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Accepted: 04/10/2018] [Indexed: 12/22/2022] Open
Abstract
Although glucocorticoids (GC) represent the most frequently used immunosuppressive drugs, their effects are still not well understood. In our previous studies, we have shown that treatment of monocytes with GC does not cause a global suppression of monocytic effector functions, but rather induces differentiation of a specific anti-inflammatory phenotype. The anti-inflammatory role of peroxisome proliferator-activated receptor (PPAR)-γ has been extensively studied during recent years. However, a relationship between GC treatment and PPAR-γ expression in macrophages has not been investigated so far. Studies using PPAR-γ-deficient mice have frequently provided controversial results. A potential reason is the use of primary cells, which commonly represent inhomogeneous populations burdened with side effects and influenced by bystander cells. To overcome this constraint, we established ER-Hoxb8-immortalized bone marrow-derived macrophages from Ppargfl/fl and LysM-Cre Ppargfl/fl mice in this study. In contrast to primary macrophages, the ER-Hoxb8 system allows the generation of a homogeneous and well-defined population of resting macrophages. We could show that the loss of PPAR-γ resulted in delayed kinetic of differentiation of monocytes into macrophages as assessed by reduced F4/80, but increased Ly6C expression in early phases of differentiation. As expected, PPAR-γ-deficient macrophages displayed an increased pro-inflammatory phenotype upon long-term LPS stimulation characterized by an elevated production of pro-inflammatory cytokines TNF-α, IL1-β, IL-6, IL-12 and a reduced production of anti-inflammatory cytokine IL-10 compared to PPAR-γ WT cells. Moreover, PPAR-γ-deficient macrophages showed impaired phagocytosis. GC treatment of macrophages led to the upregulation of PPAR-γ expression. However, there were no differences in GC-induced suppression of cytokines between both cell types, implicating a PPAR-γ-independent mechanism. Intriguingly, GC treatment resulted in an increased in vitro migration only in PPAR-γ-deficient macrophages. Performing a newly developed in vivo cell-tracking experiment, we could confirm that GC induces an increased recruitment of PPAR-γ KO, but not PPAR-γ WT macrophages to the site of inflammation. Our findings suggest a specific effect of PPAR-γ on GC-induced migration in macrophages. In conclusion, we could demonstrate that PPAR-γ exerts anti-inflammatory activities and shapes macrophage functions. Moreover, we identified a molecular link between GC and PPAR-γ and could show for the first time that PPAR-γ modulates GC-induced migration in macrophages.
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Affiliation(s)
- Michael Heming
- Institute of Immunology, University of Muenster, Muenster, Germany.,Department of Neurology, University of Muenster, Muenster, Germany
| | - Sandra Gran
- Institute of Immunology, University of Muenster, Muenster, Germany
| | - Saskia-L Jauch
- Institute of Immunology, University of Muenster, Muenster, Germany
| | | | - Antonella Russo
- Institute of Immunology, University of Muenster, Muenster, Germany
| | - Luisa Klotz
- Department of Neurology, University of Muenster, Muenster, Germany
| | - Sven Hermann
- European Institute for Molecular Imaging, University of Muenster, Muenster, Germany
| | - Michael Schäfers
- European Institute for Molecular Imaging, University of Muenster, Muenster, Germany
| | - Johannes Roth
- Institute of Immunology, University of Muenster, Muenster, Germany
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Shen ZX, Yang QZ, Li C, Du LJ, Sun XN, Liu Y, Sun JY, Gu HH, Sun YM, Wang J, Duan SZ. Myeloid peroxisome proliferator-activated receptor gamma deficiency aggravates myocardial infarction in mice. Atherosclerosis 2018; 274:199-205. [PMID: 29800789 DOI: 10.1016/j.atherosclerosis.2018.05.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2017] [Revised: 04/26/2018] [Accepted: 05/02/2018] [Indexed: 10/17/2022]
Abstract
BACKGROUND AND AIMS Agonists of peroxisome proliferator-activated receptor gamma (Pparγ) have been demonstrated to reduce the risk of myocardial infarction (MI) in clinical trials and animal experiments. However, the cellular and molecular mechanisms are not completely understood. We aimed to reveal the functions of myeloid Pparγ in MI and explore the potential mechanisms in this study. METHODS Myeloid Pparγ knockout (MPGKO) mice (n = 12) and control mice (n = 8) underwent coronary artery ligation to induce MI. Another cohort of MPGKO mice and control mice underwent coronary artery ligation and were then treated with IgG or neutralizing antibodies against interleukin (IL)-1β. Infarct size was determined by TTC staining and cardiac function was measured using echocardiography. Conditioned media from GW9662- or vehicle-treated macrophages were used to treat H9C2 cardiomyocyte cell line. Gene expression was analyzed using quantitative PCR. Reactive oxygen species were measured using flow cytometry. RESULTS Myeloid Pparγ deficiency significantly increased myocardial infarct size. Cardiac hypertrophy was also exacerbated in MPGKO mice, with upregulation of β-myosin heavy chain (Mhc) and brain natriuretic peptide (Bnp) and downregulation of α-Mhc in the non-infarcted zone. Conditioned media from GW9662-treated macrophages increased expression of β-Mhc and Bnp in H9C2 cells. Echocardiographic measurements showed that MPGKO mice had worsen cardiac dysfunction after MI. Myeloid Pparγ deficiency increased gene expression of NADPH oxidase subunits (Nox2 and Nox4) in the non-infarcted zone after MI. Conditioned media from GW9662-treated macrophages increased reactive oxygen species in H9C2 cells. Expression of inflammatory genes such as IL-1β and IL-6 was upregulated in the non-infarcted zone of MPGKO mice after MI. With the injection of neutralizing antibodies against IL-1β, control mice and MPGKO mice had comparable cardiac function and expression of inflammatory genes after MI. CONCLUSIONS Myeloid Pparγ deficiency exacerbates MI, likely through increased oxidative stress and cardiac inflammation.
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Affiliation(s)
- Zhu-Xia Shen
- Laboratory of Oral Microbiota and Systemic Diseases, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, National Clinical Research Center of Stomatology, Ninth People's Hospital, School of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200125, China; Department of Cardiology, Jing'an District Centre Hospital of Shanghai, Fudan University, Shanghai, 200040, China
| | - Qing-Zhen Yang
- Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, University of the Chinese Academy of Sciences, Shanghai, 200031, China
| | - Chao Li
- Laboratory of Oral Microbiota and Systemic Diseases, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, National Clinical Research Center of Stomatology, Ninth People's Hospital, School of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200125, China; Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, University of the Chinese Academy of Sciences, Shanghai, 200031, China
| | - Lin-Juan Du
- Laboratory of Oral Microbiota and Systemic Diseases, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, National Clinical Research Center of Stomatology, Ninth People's Hospital, School of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200125, China; Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, University of the Chinese Academy of Sciences, Shanghai, 200031, China
| | - Xue-Nan Sun
- Laboratory of Oral Microbiota and Systemic Diseases, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, National Clinical Research Center of Stomatology, Ninth People's Hospital, School of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200125, China; Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, University of the Chinese Academy of Sciences, Shanghai, 200031, China
| | - Yan Liu
- Laboratory of Oral Microbiota and Systemic Diseases, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, National Clinical Research Center of Stomatology, Ninth People's Hospital, School of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200125, China
| | - Jian-Yong Sun
- Laboratory of Oral Microbiota and Systemic Diseases, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, National Clinical Research Center of Stomatology, Ninth People's Hospital, School of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200125, China
| | - Hui-Hui Gu
- Department of Cardiology, Jing'an District Centre Hospital of Shanghai, Fudan University, Shanghai, 200040, China
| | - Yu-Min Sun
- Department of Cardiology, Jing'an District Centre Hospital of Shanghai, Fudan University, Shanghai, 200040, China
| | - Jun Wang
- Department of Cardiology, Jing'an District Centre Hospital of Shanghai, Fudan University, Shanghai, 200040, China
| | - Sheng-Zhong Duan
- Laboratory of Oral Microbiota and Systemic Diseases, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, National Clinical Research Center of Stomatology, Ninth People's Hospital, School of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200125, China.
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Liu L, Liu Y, Zhang Y, Bi X, Nie L, Liu C, Xiong J, He T, Xu X, Yu Y, Yang K, Gu J, Huang Y, Zhang J, Zhang Z, Zhang B, Zhao J. High phosphate-induced downregulation of PPARγ contributes to CKD-associated vascular calcification. J Mol Cell Cardiol 2017; 114:264-275. [PMID: 29197521 DOI: 10.1016/j.yjmcc.2017.11.021] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Revised: 11/27/2017] [Accepted: 11/28/2017] [Indexed: 02/04/2023]
Abstract
Medial arterial calcification associated with hyperphosphatemia is a main cause of cardiovascular mortality in patients with chronic kidney disease (CKD), but the mechanisms underlying high phosphate-induced vascular calcification remain largely unknown. Here, we observed a significant decrease in the expression of peroxisome proliferator-activated receptor-gamma (PPARγ) in calcified arteries both in CKD patients and in a mouse model of CKD with hyperphosphatemia. In vitro, high phosphate treatment led to a decreased expression of PPARγ in mouse vascular smooth muscle cells (VMSCs), accompanied by apparent osteogenic differentiation and calcification. Pretreatment with PPARγ agonist rosiglitazone significantly reversed high phosphate-induced VSMCs calcification. Further investigation showed that methyl-CpG binding protein 2 (Mecp2)-mediated epigenetic repression was involved in high phosphate-induced PPARγ downregulation. Moreover, the expression of Klotho that has the ability to inhibit vascular calcification by regulating phosphate uptake decreased with the PPARγ reduction in VSMCs after high phosphate treatment, and rosiglitazone failed to inhibit high phosphate-induced calcification in VSMCs with knockdown of Klotho or in aortic rings from Klotho-deficient (kl/kl) mice. Finally, an in vivo study demonstrated that oral administration of rosiglitazone could increase Klotho expression and protect against high phosphate-induced vascular calcification in CKD mice. These findings suggest that the inhibition of PPARγ expression may contribute to the pathogenesis of high phosphate-induced vascular calcification, which may provide a new therapeutic target for vascular calcification in CKD patients.
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Affiliation(s)
- Liang Liu
- Department of Nephrology, Institute of Nephrology of Chongqing and Kidney Center of PLA, Xinqiao Hospital, Third Military Medical University, Chongqing, PR China
| | - Yong Liu
- Department of Nephrology, Institute of Nephrology of Chongqing and Kidney Center of PLA, Xinqiao Hospital, Third Military Medical University, Chongqing, PR China
| | - Ying Zhang
- Department of Nephrology, Institute of Nephrology of Chongqing and Kidney Center of PLA, Xinqiao Hospital, Third Military Medical University, Chongqing, PR China
| | - Xianjin Bi
- Department of Nephrology, Institute of Nephrology of Chongqing and Kidney Center of PLA, Xinqiao Hospital, Third Military Medical University, Chongqing, PR China
| | - Ling Nie
- Department of Nephrology, Institute of Nephrology of Chongqing and Kidney Center of PLA, Xinqiao Hospital, Third Military Medical University, Chongqing, PR China
| | - Chi Liu
- Department of Nephrology, Institute of Nephrology of Chongqing and Kidney Center of PLA, Xinqiao Hospital, Third Military Medical University, Chongqing, PR China
| | - Jiachuan Xiong
- Department of Nephrology, Institute of Nephrology of Chongqing and Kidney Center of PLA, Xinqiao Hospital, Third Military Medical University, Chongqing, PR China
| | - Ting He
- Department of Nephrology, Institute of Nephrology of Chongqing and Kidney Center of PLA, Xinqiao Hospital, Third Military Medical University, Chongqing, PR China
| | - Xinlin Xu
- Department of Nephrology, Institute of Nephrology of Chongqing and Kidney Center of PLA, Xinqiao Hospital, Third Military Medical University, Chongqing, PR China
| | - Yanlin Yu
- Department of Nephrology, Institute of Nephrology of Chongqing and Kidney Center of PLA, Xinqiao Hospital, Third Military Medical University, Chongqing, PR China
| | - Ke Yang
- Department of Nephrology, Institute of Nephrology of Chongqing and Kidney Center of PLA, Xinqiao Hospital, Third Military Medical University, Chongqing, PR China
| | - Jun Gu
- State Key Laboratory of Protein and Plant Gene Research, College of Life Science, Peking University, Beijing, PR China
| | - Yunjian Huang
- Department of Nephrology, Institute of Nephrology of Chongqing and Kidney Center of PLA, Xinqiao Hospital, Third Military Medical University, Chongqing, PR China
| | - Jingbo Zhang
- Department of Nephrology, Institute of Nephrology of Chongqing and Kidney Center of PLA, Xinqiao Hospital, Third Military Medical University, Chongqing, PR China
| | - Zhiren Zhang
- Department of Basic Medicine, Institute of Immunology, Third Military Medical University, Chongqing, PR China
| | - Bo Zhang
- Department of Nephrology, Institute of Nephrology of Chongqing and Kidney Center of PLA, Xinqiao Hospital, Third Military Medical University, Chongqing, PR China
| | - Jinghong Zhao
- Department of Nephrology, Institute of Nephrology of Chongqing and Kidney Center of PLA, Xinqiao Hospital, Third Military Medical University, Chongqing, PR China.
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Functional diversity of macrophages in vascular biology and disease. Vascul Pharmacol 2017; 99:13-22. [PMID: 29074468 DOI: 10.1016/j.vph.2017.10.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Accepted: 10/19/2017] [Indexed: 12/24/2022]
Abstract
Atherosclerosis is a multifactorial chronic inflammatory disease and is largely responsible for cardiovascular disease, the most common cause of global mortality. The hallmark of atherogenesis is immune activation following lipid accumulation in the arterial wall. In particular, macrophages play a non-redundant role in both the progression and regression of inflammation in the atherosclerotic lesion. Macrophages are remarkably heterogeneous phagocytes that perform versatile functions in health and disease. Their functional diversity in vascular biology is only partially mapped. Targeting macrophages is often highlighted as a therapeutic approach for cancer, metabolic and inflammatory diseases. Future strategies for therapeutic intervention in atherosclerosis may benefit from attempts to reduce local proliferation of pro-inflammatory macrophage subsets or enhance resolution of inflammation. Thus, characterisation of macrophage subsets during atherosclerosis would empower clinical interventions. Therefore, it would be of fundamental importance to understand how pathological factors modulate macrophage activity in order to exploit their use in the treatment of atherosclerosis and other diseases.
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An J, Nagaishi T, Watabe T, Naruse TK, Watanabe M, Kimura A. MKL1 expressed in macrophages contributes to the development of murine colitis. Sci Rep 2017; 7:13650. [PMID: 29057966 PMCID: PMC5651926 DOI: 10.1038/s41598-017-13629-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Accepted: 09/29/2017] [Indexed: 12/19/2022] Open
Abstract
Mice deficient in the megakaryoblastic leukaemia 1 (Mkl1) gene experience less severe dextran sulphate sodium (DSS)-induced colitis, implying that Mkl1 plays a pathological role in inflammatory bowel disease (IBD). However, the contribution of Mkl1 to the development of colitis remains to be elucidated. The expression of Mkl1 is higher in the colonic lamina propria macrophages (LPMac) of DSS-treated mice than in those of control mice. Therefore, we established a transgenic mouse line that overexpresses human MKL1 (MKL1-Tg) specifically in cells of the monocyte/macrophage lineage, in order to investigate the potential role of macrophage MKL1 in the pathogenesis of colitis. MKL1-Tg mice displayed spontaneous colon shortening and rectal prolapse. Flow cytometric and quantitative RT-PCR analyses revealed that, in MKL1-Tg mice compared to littermate controls, the population of LPMac was decreased and had an altered inflammatory phenotype indicative of impaired anti-inflammatory properties, whereas bone marrow-derived macrophages from MKL1-Tg mice skewed towards M1 polarisation. In addition, MKL1-Tg mice had higher susceptibility to DSS-induced colitis than their littermate controls. These observations indicated that MKL1 crucially contributes to the development of colitis via the regulation of the function of macrophages, suggesting that it may be a potential therapeutic target for the prevention of IBD.
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Affiliation(s)
- Jianbo An
- Department of Molecular Pathogenesis, Medical Research Institute, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Takashi Nagaishi
- Department of Gastroenterology and Hepatology, Graduate School of Medical Science, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Taro Watabe
- Department of Gastroenterology and Hepatology, Graduate School of Medical Science, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Taeko K Naruse
- Department of Molecular Pathogenesis, Medical Research Institute, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Mamoru Watanabe
- Department of Gastroenterology and Hepatology, Graduate School of Medical Science, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Akinori Kimura
- Department of Molecular Pathogenesis, Medical Research Institute, Tokyo Medical and Dental University (TMDU), Tokyo, Japan.
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Bai L, Li Z, Li Q, Guan H, Zhao S, Liu R, Wang R, Zhang J, Jia Y, Fan J, Wang N, Reddy JK, Shyy JYJ, Liu E. Mediator 1 Is Atherosclerosis Protective by Regulating Macrophage Polarization. Arterioscler Thromb Vasc Biol 2017. [PMID: 28642237 DOI: 10.1161/atvbaha.117.309672] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
OBJECTIVE MED1 (mediator 1) interacts with transcription factors to regulate transcriptional machinery. The role of MED1 in macrophage biology and the relevant disease state remains to be investigated. APPROACH AND RESULTS To study the molecular mechanism by which MED1 regulates the M1/M2 phenotype switch of macrophage and the effect on atherosclerosis, we generated MED1/apolipoprotein E (ApoE) double-deficient (MED1ΔMac/ApoE-/-) mice and found that atherosclerosis was greater in MED1ΔMac/ApoE-/- mice than in MED1fl/fl/ApoE-/- littermates. The gene expression of M1 markers was increased and that of M2 markers decreased in both aortic wall and peritoneal macrophages from MED1ΔMac/ApoE-/- mice, whereas MED1 overexpression rectified the changes in M1/M2 expression. Moreover, LDLR (low-density lipoprotein receptor)-deficient mice received bone marrow from MED1ΔMac mice showed greater atherosclerosis. Mechanistically, MED1 ablation decreased the binding of PPARγ (peroxisome proliferator-activated receptor γ) and enrichment of H3K4me1 and H3K27ac to upstream region of M2 marker genes. Furthermore, interleukin 4 induction of PPARγ and MED1 increased the binding of PPARγ or MED1 to the PPAR response elements of M2 marker genes. CONCLUSIONS Our data suggest that MED1 is required for the PPARγ-mediated M2 phenotype switch, with M2 marker genes induced but M1 marker genes suppressed. MED1 in macrophages has an antiatherosclerotic role via PPARγ-regulated transactivation.
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Affiliation(s)
- Liang Bai
- From the Research Institute of Atherosclerotic Disease, Health Science Center and Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education of China (L.B., Q.L., H.G., S.Z., R.L., R.W., E.L.), Laboratory Animal Center, Health Science Center (L.B., Q.L., H.G., S.Z., R.L., R.W., E.L.), Cardiovascular Research Center, School of Basic Medical Sciences, Health Science Center (L.B., Z.L., J.Z., N.W., J.Y.-J.S.), Xi'an Jiaotong University, Shaanxi, China; Department of Pathology, Feinberg School of Medicine, Northwestern University, Chicago, IL (Y.J., J.K.R.); Department of Molecular Pathology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Japan (J.F.); and Division of Cardiology, Department of Medicine, University of California, San Diego, La Jolla (J.Y.-J.S.)
| | - Zhao Li
- From the Research Institute of Atherosclerotic Disease, Health Science Center and Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education of China (L.B., Q.L., H.G., S.Z., R.L., R.W., E.L.), Laboratory Animal Center, Health Science Center (L.B., Q.L., H.G., S.Z., R.L., R.W., E.L.), Cardiovascular Research Center, School of Basic Medical Sciences, Health Science Center (L.B., Z.L., J.Z., N.W., J.Y.-J.S.), Xi'an Jiaotong University, Shaanxi, China; Department of Pathology, Feinberg School of Medicine, Northwestern University, Chicago, IL (Y.J., J.K.R.); Department of Molecular Pathology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Japan (J.F.); and Division of Cardiology, Department of Medicine, University of California, San Diego, La Jolla (J.Y.-J.S.)
| | - Qianwei Li
- From the Research Institute of Atherosclerotic Disease, Health Science Center and Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education of China (L.B., Q.L., H.G., S.Z., R.L., R.W., E.L.), Laboratory Animal Center, Health Science Center (L.B., Q.L., H.G., S.Z., R.L., R.W., E.L.), Cardiovascular Research Center, School of Basic Medical Sciences, Health Science Center (L.B., Z.L., J.Z., N.W., J.Y.-J.S.), Xi'an Jiaotong University, Shaanxi, China; Department of Pathology, Feinberg School of Medicine, Northwestern University, Chicago, IL (Y.J., J.K.R.); Department of Molecular Pathology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Japan (J.F.); and Division of Cardiology, Department of Medicine, University of California, San Diego, La Jolla (J.Y.-J.S.)
| | - Hua Guan
- From the Research Institute of Atherosclerotic Disease, Health Science Center and Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education of China (L.B., Q.L., H.G., S.Z., R.L., R.W., E.L.), Laboratory Animal Center, Health Science Center (L.B., Q.L., H.G., S.Z., R.L., R.W., E.L.), Cardiovascular Research Center, School of Basic Medical Sciences, Health Science Center (L.B., Z.L., J.Z., N.W., J.Y.-J.S.), Xi'an Jiaotong University, Shaanxi, China; Department of Pathology, Feinberg School of Medicine, Northwestern University, Chicago, IL (Y.J., J.K.R.); Department of Molecular Pathology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Japan (J.F.); and Division of Cardiology, Department of Medicine, University of California, San Diego, La Jolla (J.Y.-J.S.)
| | - Sihai Zhao
- From the Research Institute of Atherosclerotic Disease, Health Science Center and Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education of China (L.B., Q.L., H.G., S.Z., R.L., R.W., E.L.), Laboratory Animal Center, Health Science Center (L.B., Q.L., H.G., S.Z., R.L., R.W., E.L.), Cardiovascular Research Center, School of Basic Medical Sciences, Health Science Center (L.B., Z.L., J.Z., N.W., J.Y.-J.S.), Xi'an Jiaotong University, Shaanxi, China; Department of Pathology, Feinberg School of Medicine, Northwestern University, Chicago, IL (Y.J., J.K.R.); Department of Molecular Pathology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Japan (J.F.); and Division of Cardiology, Department of Medicine, University of California, San Diego, La Jolla (J.Y.-J.S.)
| | - Ruihan Liu
- From the Research Institute of Atherosclerotic Disease, Health Science Center and Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education of China (L.B., Q.L., H.G., S.Z., R.L., R.W., E.L.), Laboratory Animal Center, Health Science Center (L.B., Q.L., H.G., S.Z., R.L., R.W., E.L.), Cardiovascular Research Center, School of Basic Medical Sciences, Health Science Center (L.B., Z.L., J.Z., N.W., J.Y.-J.S.), Xi'an Jiaotong University, Shaanxi, China; Department of Pathology, Feinberg School of Medicine, Northwestern University, Chicago, IL (Y.J., J.K.R.); Department of Molecular Pathology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Japan (J.F.); and Division of Cardiology, Department of Medicine, University of California, San Diego, La Jolla (J.Y.-J.S.)
| | - Rong Wang
- From the Research Institute of Atherosclerotic Disease, Health Science Center and Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education of China (L.B., Q.L., H.G., S.Z., R.L., R.W., E.L.), Laboratory Animal Center, Health Science Center (L.B., Q.L., H.G., S.Z., R.L., R.W., E.L.), Cardiovascular Research Center, School of Basic Medical Sciences, Health Science Center (L.B., Z.L., J.Z., N.W., J.Y.-J.S.), Xi'an Jiaotong University, Shaanxi, China; Department of Pathology, Feinberg School of Medicine, Northwestern University, Chicago, IL (Y.J., J.K.R.); Department of Molecular Pathology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Japan (J.F.); and Division of Cardiology, Department of Medicine, University of California, San Diego, La Jolla (J.Y.-J.S.)
| | - Jin Zhang
- From the Research Institute of Atherosclerotic Disease, Health Science Center and Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education of China (L.B., Q.L., H.G., S.Z., R.L., R.W., E.L.), Laboratory Animal Center, Health Science Center (L.B., Q.L., H.G., S.Z., R.L., R.W., E.L.), Cardiovascular Research Center, School of Basic Medical Sciences, Health Science Center (L.B., Z.L., J.Z., N.W., J.Y.-J.S.), Xi'an Jiaotong University, Shaanxi, China; Department of Pathology, Feinberg School of Medicine, Northwestern University, Chicago, IL (Y.J., J.K.R.); Department of Molecular Pathology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Japan (J.F.); and Division of Cardiology, Department of Medicine, University of California, San Diego, La Jolla (J.Y.-J.S.)
| | - Yuzhi Jia
- From the Research Institute of Atherosclerotic Disease, Health Science Center and Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education of China (L.B., Q.L., H.G., S.Z., R.L., R.W., E.L.), Laboratory Animal Center, Health Science Center (L.B., Q.L., H.G., S.Z., R.L., R.W., E.L.), Cardiovascular Research Center, School of Basic Medical Sciences, Health Science Center (L.B., Z.L., J.Z., N.W., J.Y.-J.S.), Xi'an Jiaotong University, Shaanxi, China; Department of Pathology, Feinberg School of Medicine, Northwestern University, Chicago, IL (Y.J., J.K.R.); Department of Molecular Pathology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Japan (J.F.); and Division of Cardiology, Department of Medicine, University of California, San Diego, La Jolla (J.Y.-J.S.)
| | - Jianglin Fan
- From the Research Institute of Atherosclerotic Disease, Health Science Center and Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education of China (L.B., Q.L., H.G., S.Z., R.L., R.W., E.L.), Laboratory Animal Center, Health Science Center (L.B., Q.L., H.G., S.Z., R.L., R.W., E.L.), Cardiovascular Research Center, School of Basic Medical Sciences, Health Science Center (L.B., Z.L., J.Z., N.W., J.Y.-J.S.), Xi'an Jiaotong University, Shaanxi, China; Department of Pathology, Feinberg School of Medicine, Northwestern University, Chicago, IL (Y.J., J.K.R.); Department of Molecular Pathology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Japan (J.F.); and Division of Cardiology, Department of Medicine, University of California, San Diego, La Jolla (J.Y.-J.S.)
| | - Nanping Wang
- From the Research Institute of Atherosclerotic Disease, Health Science Center and Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education of China (L.B., Q.L., H.G., S.Z., R.L., R.W., E.L.), Laboratory Animal Center, Health Science Center (L.B., Q.L., H.G., S.Z., R.L., R.W., E.L.), Cardiovascular Research Center, School of Basic Medical Sciences, Health Science Center (L.B., Z.L., J.Z., N.W., J.Y.-J.S.), Xi'an Jiaotong University, Shaanxi, China; Department of Pathology, Feinberg School of Medicine, Northwestern University, Chicago, IL (Y.J., J.K.R.); Department of Molecular Pathology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Japan (J.F.); and Division of Cardiology, Department of Medicine, University of California, San Diego, La Jolla (J.Y.-J.S.)
| | - Janardan K Reddy
- From the Research Institute of Atherosclerotic Disease, Health Science Center and Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education of China (L.B., Q.L., H.G., S.Z., R.L., R.W., E.L.), Laboratory Animal Center, Health Science Center (L.B., Q.L., H.G., S.Z., R.L., R.W., E.L.), Cardiovascular Research Center, School of Basic Medical Sciences, Health Science Center (L.B., Z.L., J.Z., N.W., J.Y.-J.S.), Xi'an Jiaotong University, Shaanxi, China; Department of Pathology, Feinberg School of Medicine, Northwestern University, Chicago, IL (Y.J., J.K.R.); Department of Molecular Pathology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Japan (J.F.); and Division of Cardiology, Department of Medicine, University of California, San Diego, La Jolla (J.Y.-J.S.)
| | - John Y-J Shyy
- From the Research Institute of Atherosclerotic Disease, Health Science Center and Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education of China (L.B., Q.L., H.G., S.Z., R.L., R.W., E.L.), Laboratory Animal Center, Health Science Center (L.B., Q.L., H.G., S.Z., R.L., R.W., E.L.), Cardiovascular Research Center, School of Basic Medical Sciences, Health Science Center (L.B., Z.L., J.Z., N.W., J.Y.-J.S.), Xi'an Jiaotong University, Shaanxi, China; Department of Pathology, Feinberg School of Medicine, Northwestern University, Chicago, IL (Y.J., J.K.R.); Department of Molecular Pathology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Japan (J.F.); and Division of Cardiology, Department of Medicine, University of California, San Diego, La Jolla (J.Y.-J.S.).
| | - Enqi Liu
- From the Research Institute of Atherosclerotic Disease, Health Science Center and Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education of China (L.B., Q.L., H.G., S.Z., R.L., R.W., E.L.), Laboratory Animal Center, Health Science Center (L.B., Q.L., H.G., S.Z., R.L., R.W., E.L.), Cardiovascular Research Center, School of Basic Medical Sciences, Health Science Center (L.B., Z.L., J.Z., N.W., J.Y.-J.S.), Xi'an Jiaotong University, Shaanxi, China; Department of Pathology, Feinberg School of Medicine, Northwestern University, Chicago, IL (Y.J., J.K.R.); Department of Molecular Pathology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Japan (J.F.); and Division of Cardiology, Department of Medicine, University of California, San Diego, La Jolla (J.Y.-J.S.).
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Durgin BG, Cherepanova OA, Gomez D, Karaoli T, Alencar GF, Butcher JT, Zhou YQ, Bendeck MP, Isakson BE, Owens GK, Connelly JJ. Smooth muscle cell-specific deletion of Col15a1 unexpectedly leads to impaired development of advanced atherosclerotic lesions. Am J Physiol Heart Circ Physiol 2017; 312:H943-H958. [PMID: 28283548 PMCID: PMC5451587 DOI: 10.1152/ajpheart.00029.2017] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Revised: 03/06/2017] [Accepted: 03/06/2017] [Indexed: 12/28/2022]
Abstract
Atherosclerotic plaque rupture with subsequent embolic events is a major cause of sudden death from myocardial infarction or stroke. Although smooth muscle cells (SMCs) produce and respond to collagens in vitro, there is no direct evidence in vivo that SMCs are a crucial source of collagens and that this impacts lesion development or fibrous cap formation. We sought to determine how conditional SMC-specific knockout of collagen type XV (COL15A1) in SMC lineage tracing mice affects advanced lesion formation given that 1) we have previously identified a Col15a1 sequence variant associated with age-related atherosclerosis, 2) COL15A1 is a matrix organizer enhancing tissue structural integrity, and 3) small interfering RNA-mediated Col15a1 knockdown increased migration and decreased proliferation of cultured human SMCs. We hypothesized that SMC-derived COL15A1 is critical in advanced lesions, specifically in fibrous cap formation. Surprisingly, we demonstrated that SMC-specific Col15a1 knockout mice fed a Western diet for 18 wk failed to form advanced lesions. SMC-specific Col15a1 knockout resulted in lesions reduced in size by 78%, with marked reductions in numbers and proliferating SMCs, and lacked a SMC and extracellular matrix-rich lesion or fibrous cap. In vivo RNA-seq analyses on SMC Col15a1 knockout and wild-type lesions suggested that a mechanism for these effects is through global repression of multiple proatherogenic inflammatory pathways involved in lesion development. These results provide the first direct evidence that a SMC-derived collagen, COL15A1, is critical during lesion pathogenesis, but, contrary to expectations, its loss resulted in marked attenuation rather than exacerbation of lesion pathogenesis.NEW & NOTEWORTHY We report the first direct in vivo evidence that a smooth muscle cell (SMC)-produced collagen, collagen type XV (COL15A1), is critical for atherosclerotic lesion development. SMC Col15a1 knockout markedly attenuated advanced lesion formation, likely through reducing SMC proliferation and impairing multiple proatherogenic inflammatory processes.
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Affiliation(s)
- Brittany G Durgin
- Robert M. Berne Cardiovascular Research Center, University of Virginia, Charlottesville, Virginia.,Department of Molecular Physiology and Biological Physics, University of Virginia, Charlottesville, Virginia
| | - Olga A Cherepanova
- Robert M. Berne Cardiovascular Research Center, University of Virginia, Charlottesville, Virginia.,Department of Molecular Physiology and Biological Physics, University of Virginia, Charlottesville, Virginia
| | - Delphine Gomez
- Robert M. Berne Cardiovascular Research Center, University of Virginia, Charlottesville, Virginia.,Department of Molecular Physiology and Biological Physics, University of Virginia, Charlottesville, Virginia
| | - Themistoclis Karaoli
- Robert M. Berne Cardiovascular Research Center, University of Virginia, Charlottesville, Virginia
| | - Gabriel F Alencar
- Robert M. Berne Cardiovascular Research Center, University of Virginia, Charlottesville, Virginia.,Department of Biochemistry and Molecular Genetics, University of Virginia, Charlottesville, Virginia
| | - Joshua T Butcher
- Robert M. Berne Cardiovascular Research Center, University of Virginia, Charlottesville, Virginia.,Department of Molecular Physiology and Biological Physics, University of Virginia, Charlottesville, Virginia
| | - Yu-Qing Zhou
- Department of Laboratory Medicine and Pathobiology, Ted Rogers Centre for Heart Research TBEP, University of Toronto, Toronto, Ontario, Canada; and
| | - Michelle P Bendeck
- Department of Laboratory Medicine and Pathobiology, Ted Rogers Centre for Heart Research TBEP, University of Toronto, Toronto, Ontario, Canada; and
| | - Brant E Isakson
- Robert M. Berne Cardiovascular Research Center, University of Virginia, Charlottesville, Virginia.,Department of Molecular Physiology and Biological Physics, University of Virginia, Charlottesville, Virginia
| | - Gary K Owens
- Robert M. Berne Cardiovascular Research Center, University of Virginia, Charlottesville, Virginia.,Department of Molecular Physiology and Biological Physics, University of Virginia, Charlottesville, Virginia
| | - Jessica J Connelly
- Robert M. Berne Cardiovascular Research Center, University of Virginia, Charlottesville, Virginia; .,Department of Psychology, University of Virginia, Charlottesville, Virginia
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49
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The effects of PPARγ on the regulation of the TOMM40-APOE-C1 genes cluster. Biochim Biophys Acta Mol Basis Dis 2017; 1863:810-816. [PMID: 28065845 DOI: 10.1016/j.bbadis.2017.01.004] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Revised: 12/12/2016] [Accepted: 01/04/2017] [Indexed: 11/24/2022]
Abstract
Chromosome 19q13.32 is a gene rich region, and has been implicated in multiple human phenotypes in adulthood including lipids traits, Alzheimer's disease, and longevity. Peroxisome Proliferator Activated Receptor Gamma (PPARγ) is a ligand-activated nuclear transcription factor that plays a role in human complex traits that are also genetically associated with the chromosome 19q13.32 region. Here, we study the effects of PPARγ on the regional expression regulation of the genes clustered within chromosome 19q13.32, specifically TOMM40, APOE, and APOC1, applying two complementary approaches. Using the short hairpin RNA (shRNA) method in the HepG2 cell-line we knocked down PPARγ expression and measured the effect on mRNA expression. We discovered PPARγ knock down increased the levels of TOMM40-, APOE-, and APOC1-mRNAs, with the highest increase in expression observed for APOE-mRNA. To complement the PPARγ knockdown findings we also examined the effects of low doses of PPARγ agonists (nM range) on mRNA expression of these genes. Low (nM) concentrations of pioglitazone (Pio) decreased transcription of TOMM40, APOE, and APOC1 genes, with the lowest mRNA levels for each gene observed at 1.5nM. Similar to the effect of PPARγ knockdown, the strongest response to pioglitazone was also observed for APOE-mRNA, and rosiglitazone (Rosi), another PPARγ agonist, produced results that were consistent with these. In conclusion, our results further established a role for PPARγ in regional transcriptional regulation of chr19q13.32, underpinning the association between PPARγ, the chr19q13.32 genes cluster, and human complex traits and disease.
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50
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Cai L, Yu L, Liu S, Li T, Zhang X, Cui W, Du J, Zhang Q. Reconfiguration of NKT Cell Subset Compartment Is Associated with Plaque Development in Patients with Carotid Artery Stenosis. Inflammation 2016; 40:92-99. [PMID: 27778126 DOI: 10.1007/s10753-016-0456-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Accumulating evidence shows that immune cells play an important role in carotid atherosclerotic plaque development. In this study, we assessed the association of 6 different natural killer T (NKT) cell subsets, based on CD57 and CD8 expression, with risk for development of carotid atherosclerotic plaque (CAP). Molecular expression by peripheral NKT cells was evaluated in 13 patients with high-risk CAP and control without carotid stenosis (n = 18). High-risk CAP patients, compared with healthy subjects, had less percentage of CD57+CD8- NKT cell subsets (8.64 ± 10.15 versus 19.62 ± 10.8 %; P = 0.01) and CD57+CD8int NKT cell subsets (4.32 ± 3.04 versus 11.87 ± 8.56 %; P = 0.002), with a corresponding increase in the CD57-CD8high NKT cell subsets (33.22 ± 11.87 versus 18.66 ± 13.68 %; P = 0.007). Intracellular cytokine staining showed that CD8+ NKT cell subset was the main cytokine-producing NKT cell. Cytokine production in plasma was measured with Bio-Plex assay. The expression levels of pro-inflammatory mediators (IFN-γ, IL-17, IP-10) were significantly higher in CAP patients as compared to that from controls. These data provide evidence that NKT cell subset compartment reconfiguration in patients with carotid stenosis seems to be associated with the occurrence of carotid atherosclerotic plaque and suggest that both pathogenic and protective NKT cell subsets exist.
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Affiliation(s)
- Lun Cai
- The Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing Institute of Heart, Lung and Blood Vessel Disease, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Lei Yu
- Stroke Center, Beijing Anzhen Hospital, Capital Medical University, Beijing, 100029, China
| | - Sa Liu
- The Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing Institute of Heart, Lung and Blood Vessel Disease, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Tongxun Li
- Stroke Center, Beijing Anzhen Hospital, Capital Medical University, Beijing, 100029, China
| | - Xiaoping Zhang
- The Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing Institute of Heart, Lung and Blood Vessel Disease, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Wei Cui
- The Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing Institute of Heart, Lung and Blood Vessel Disease, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Jie Du
- The Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing Institute of Heart, Lung and Blood Vessel Disease, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Qinyi Zhang
- Stroke Center, Beijing Anzhen Hospital, Capital Medical University, Beijing, 100029, China.
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