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Cao J, Martin-Lorenzo M, van Kuijk K, Wieland EB, Gijbels MJ, Claes BSR, Heredero A, Aldamiz-Echevarria G, Heeren RMA, Goossens P, Sluimer JC, Balluff B, Alvarez-Llamas G. Spatial Metabolomics Identifies LPC(18:0) and LPA(18:1) in Advanced Atheroma With Translation to Plasma for Cardiovascular Risk Estimation. Arterioscler Thromb Vasc Biol 2024; 44:741-754. [PMID: 38299357 DOI: 10.1161/atvbaha.123.320278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Accepted: 01/16/2024] [Indexed: 02/02/2024]
Abstract
BACKGROUND The metabolic alterations occurring within the arterial architecture during atherosclerosis development remain poorly understood, let alone those particular to each arterial tunica. We aimed first to identify, in a spatially resolved manner, the specific metabolic changes in plaque, media, adventitia, and cardiac tissue between control and atherosclerotic murine aortas. Second, we assessed their translatability to human tissue and plasma for cardiovascular risk estimation. METHODS In this observational study, mass spectrometry imaging (MSI) was applied to identify region-specific metabolic differences between atherosclerotic (n=11) and control (n=11) aortas from low-density lipoprotein receptor-deficient mice, via histology-guided virtual microdissection. Early and advanced plaques were compared within the same atherosclerotic animals. Progression metabolites were further analyzed by MSI in 9 human atherosclerotic carotids and by targeted mass spectrometry in human plasma from subjects with elective coronary artery bypass grafting (cardiovascular risk group, n=27) and a control group (n=27). RESULTS MSI identified 362 local metabolic alterations in atherosclerotic mice (log2 fold-change ≥1.5; P≤0.05). The lipid composition of cardiac tissue is altered during atherosclerosis development and presents a generalized accumulation of glycerophospholipids, except for lysolipids. Lysolipids (among other glycerophospholipids) were found at elevated levels in all 3 arterial layers of atherosclerotic aortas. LPC(18:0) (lysophosphatidylcholine; P=0.024) and LPA(18:1) (lysophosphatidic acid; P=0.025) were found to be significantly elevated in advanced plaques as compared with mouse-matched early plaques. Higher levels of both lipid species were also observed in fibrosis-rich areas of advanced- versus early-stage human samples. They were found to be significantly reduced in human plasma from subjects with elective coronary artery bypass grafting (P<0.001 and P=0.031, respectively), with LPC(18:0) showing significant association with cardiovascular risk (odds ratio, 0.479 [95% CI, 0.225-0.883]; P=0.032) and diagnostic potential (area under the curve, 0.778 [95% CI, 0.638-0.917]). CONCLUSIONS An altered phospholipid metabolism occurs in atherosclerosis, affecting both the aorta and the adjacent heart tissue. Plaque-progression lipids LPC(18:0) and LPA(18:1), as identified by MSI on tissue, reflect cardiovascular risk in human plasma.
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Affiliation(s)
- Jianhua Cao
- Maastricht MultiModal Molecular Imaging institute, M4i, Maastricht University, the Netherlands (J.C., B.S.R.C., R.M.A.H., B.B.)
| | - Marta Martin-Lorenzo
- Immunology Department, IIS-Fundación Jiménez Díaz-UAM, Madrid, Spain (M.M.-L., G.A.-L.)
| | - Kim van Kuijk
- Department of Pathology, CARIM School for Cardiovascular Diseases, Maastricht University Medical Center, the Netherlands (K.v.K., E.B.W., M.J.G., P.G., J.C.S.)
| | - Elias B Wieland
- Department of Pathology, CARIM School for Cardiovascular Diseases, Maastricht University Medical Center, the Netherlands (K.v.K., E.B.W., M.J.G., P.G., J.C.S.)
| | - Marion J Gijbels
- Department of Pathology, CARIM School for Cardiovascular Diseases, Maastricht University Medical Center, the Netherlands (K.v.K., E.B.W., M.J.G., P.G., J.C.S.)
- Department of Medical Biochemistry, Experimental Vascular Biology, Amsterdam Cardiovascular Sciences, Amsterdam Infection and Immunity, Amsterdam UMC, the Netherlands (M.J.G.)
| | - Britt S R Claes
- Maastricht MultiModal Molecular Imaging institute, M4i, Maastricht University, the Netherlands (J.C., B.S.R.C., R.M.A.H., B.B.)
| | - Angeles Heredero
- Cardiac Surgery Service, Fundación Jiménez Díaz University Hospital-UAM, Madrid, Spain (A.H., G.A.-E.)
| | | | - Ron M A Heeren
- Maastricht MultiModal Molecular Imaging institute, M4i, Maastricht University, the Netherlands (J.C., B.S.R.C., R.M.A.H., B.B.)
| | - Pieter Goossens
- Department of Pathology, CARIM School for Cardiovascular Diseases, Maastricht University Medical Center, the Netherlands (K.v.K., E.B.W., M.J.G., P.G., J.C.S.)
| | - Judith C Sluimer
- Department of Pathology, CARIM School for Cardiovascular Diseases, Maastricht University Medical Center, the Netherlands (K.v.K., E.B.W., M.J.G., P.G., J.C.S.)
- Centre for Cardiovascular Science, University of Edinburgh, United Kingdom (J.C.S.)
| | - Benjamin Balluff
- Maastricht MultiModal Molecular Imaging institute, M4i, Maastricht University, the Netherlands (J.C., B.S.R.C., R.M.A.H., B.B.)
| | - Gloria Alvarez-Llamas
- Immunology Department, IIS-Fundación Jiménez Díaz-UAM, Madrid, Spain (M.M.-L., G.A.-L.)
- RICORS2040, IIS-Fundación Jiménez Díaz, Madrid, Spain (G.A.-L.)
- Biochemistry and Molecular Biology Department, Complutense University, Madrid, Spain (G.A.-L.)
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2
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Lu C, Donners MMPC, de Baaij JBJ, Jin H, Otten JJT, Manca M, van Zonneveld AJ, Jukema JW, Kraaijeveld A, Kuiper J, Pasterkamp G, Mees B, Sluimer JC, Cavill R, Karel JMH, Goossens P, Biessen EAL. Identification of a gene network driving the attenuated response to lipopolysaccharide of monocytes from hypertensive coronary artery disease patients. Front Immunol 2024; 15:1286382. [PMID: 38410507 PMCID: PMC10894924 DOI: 10.3389/fimmu.2024.1286382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Accepted: 01/24/2024] [Indexed: 02/28/2024] Open
Abstract
Introduction The impact of cardiovascular disease (CVD) risk factors, encompassing various biological determinants and unhealthy lifestyles, on the functional dynamics of circulating monocytes-a pivotal cell type in CVD pathophysiology remains elusive. In this study, we aimed to elucidate the influence of CVD risk factors on monocyte transcriptional responses to an infectious stimulus. Methods We conducted a comparative analysis of monocyte gene expression profiles from the CTMM - CIRCULATING CELLS Cohort of coronary artery disease (CAD) patients, at baseline and after lipopolysaccharide (LPS) stimulation. Gene co-expression analysis was used to identify gene modules and their correlations with CVD risk factors, while pivotal transcription factors controlling the hub genes in these modules were identified by regulatory network analyses. The identified gene module was subjected to a drug repurposing screen, utilizing the LINCS L1000 database. Results Monocyte responsiveness to LPS showed a highly significant, negative correlation with blood pressure levels (ρ< -0.4; P<10-80). We identified a ZNF12/ZBTB43-driven gene module closely linked to diastolic blood pressure, suggesting that monocyte responses to infectious stimuli, such as LPS, are attenuated in CAD patients with elevated diastolic blood pressure. This attenuation appears associated with a dampening of the LPS-induced suppression of oxidative phosphorylation. Finally, we identified the serine-threonine inhibitor MW-STK33-97 as a drug candidate capable of reversing this aberrant LPS response. Conclusions Monocyte responses to infectious stimuli may be hampered in CAD patients with high diastolic blood pressure and this attenuated inflammatory response may be reversed by the serine-threonine inhibitor MW-STK33-97. Whether the identified gene module is a mere indicator of, or causal factor in diastolic blood pressure and the associated dampened LPS responses remains to be determined.
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Affiliation(s)
- Chang Lu
- Department of Pathology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, Maastricht, Netherlands
- Institute for Computational Biomedicine, Faculty of Medicine, Heidelberg University and Heidelberg University Hospital, Heidelberg, Germany
| | - Marjo M P C Donners
- Department of Pathology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, Maastricht, Netherlands
| | - Julius B J de Baaij
- Department of Pathology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, Maastricht, Netherlands
| | - Han Jin
- Department of Pathology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, Maastricht, Netherlands
- Science for Life Laboratory, KTH - Royal Institute of Technology, Stockholm, Sweden
| | - Jeroen J T Otten
- Department of Pathology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, Maastricht, Netherlands
| | | | - Anton Jan van Zonneveld
- Department of Internal Medicine (Nephrology), Leiden University Medical Center, Leiden, Netherlands
| | - J Wouter Jukema
- Department of Cardiology, Leiden University Medical Center, Leiden, Netherlands
- Netherlands Heart Institute, Utrecht, Netherlands
| | - Adriaan Kraaijeveld
- Department of Cardiology, University Medical Center Utrecht, Utrecht, Netherlands
| | - Johan Kuiper
- Division of BioTherapeutics, Leiden Academic Centre for Drug Research, Leiden University, Leiden, Netherlands
| | - Gerard Pasterkamp
- Circulatory Health Research Center, University Medical Center Utrecht, Utrecht, Netherlands
| | - Barend Mees
- Department of Vascular Surgery, Maastricht University Medical Center, Maastricht, Netherlands
| | - Judith C Sluimer
- Department of Pathology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, Maastricht, Netherlands
- Centre for Cardiovascular Science (CVS), University of Edinburgh, Edinburgh, United Kingdom
| | - Rachel Cavill
- Department of Advanced Computing Sciences, Maastricht University, Maastricht, Netherlands
| | - Joël M H Karel
- Department of Advanced Computing Sciences, Maastricht University, Maastricht, Netherlands
| | - Pieter Goossens
- Department of Pathology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, Maastricht, Netherlands
| | - Erik A L Biessen
- Department of Pathology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, Maastricht, Netherlands
- Institute for Molecular Cardiovascular Research, Klinikum RWTH Aachen, Aachen, Germany
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Wieland EB, Kempen LJ, Donners MM, Biessen EA, Goossens P. Macrophage heterogeneity in atherosclerosis: A matter of context. Eur J Immunol 2024; 54:e2350464. [PMID: 37943053 DOI: 10.1002/eji.202350464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 10/19/2023] [Accepted: 10/24/2023] [Indexed: 11/10/2023]
Abstract
During atherogenesis, plaque macrophages take up and process deposited lipids, trigger inflammation, and form necrotic cores. The traditional inflammatory/anti-inflammatory paradigm has proven insufficient in explaining their complex disease-driving mechanisms. Instead, we now appreciate that macrophages exhibit remarkable heterogeneity and functional specialization in various pathological contexts, including atherosclerosis. Technical advances for studying individual cells, especially single-cell RNA sequencing, indeed allowed to identify novel macrophage subsets in both murine and human atherosclerosis, highlighting the existence of diverse macrophage activation states throughout pathogenesis. In addition, recent studies highlighted the role of the local microenvironment in shaping the macrophages' phenotype and function. However, this remains largely undescribed in the context of atherosclerosis. In this review we explore the origins of macrophages and their functional specialization, shedding light on the diverse sources of macrophage accumulation in the atherosclerotic plaque. Next, we discuss the phenotypic diversity observed in both murine and human atherosclerosis, elucidating their distinct functions and spatial distribution within plaques. Finally, we highlight the importance of the local microenvironment in both phenotypic and functional specialization of macrophages in atherosclerosis and elaborate on the need for spatial multiomics approaches to provide a better understanding of the different macrophage subsets' roles in the pathogenesis of atherosclerosis.
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Affiliation(s)
- Elias B Wieland
- Cardiovascular Research Institute Maastricht, Experimental Vascular Pathology, Department of Pathology, Maastricht University Medical Centre+, Maastricht, the Netherlands
| | - Laura Jap Kempen
- Cardiovascular Research Institute Maastricht, Experimental Vascular Pathology, Department of Pathology, Maastricht University Medical Centre+, Maastricht, the Netherlands
- Laboratory of Immunology and Vaccinology, Faculty of Veterinary Medicine, FARAH, ULiège, Liège, Belgium
- Laboratory of Immunophysiology, GIGA Institute, Liege University, Liège, Belgium
| | - Marjo Mpc Donners
- Cardiovascular Research Institute Maastricht, Experimental Vascular Pathology, Department of Pathology, Maastricht University Medical Centre+, Maastricht, the Netherlands
| | - Erik Al Biessen
- Cardiovascular Research Institute Maastricht, Experimental Vascular Pathology, Department of Pathology, Maastricht University Medical Centre+, Maastricht, the Netherlands
- Institute for Molecular Cardiovascular Research, RWTH Aachen University, Aachen, Germany
| | - Pieter Goossens
- Cardiovascular Research Institute Maastricht, Experimental Vascular Pathology, Department of Pathology, Maastricht University Medical Centre+, Maastricht, the Netherlands
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Wieland EB, Kempen LJAP, Lu C, Donners MMPC, Biessen EAL, Goossens P. Protocol for multispectral imaging on cryosections to map myeloid cell heterogeneity in its spatial context. STAR Protoc 2023; 4:102601. [PMID: 37742177 PMCID: PMC10522972 DOI: 10.1016/j.xpro.2023.102601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 07/27/2023] [Accepted: 09/05/2023] [Indexed: 09/26/2023] Open
Abstract
Recent technical advances, such as single-cell RNA sequencing and mass cytometry, improve identification of cell types and subsets in a range of healthy and diseased tissues at the expense of their cellular and molecular context. Here, we present a protocol for in situ multispectral imaging to map myeloid cell heterogeneity in tissue cryosections, describing steps for cutting sequential sections, antibody titration, and building a spectral library. We then detail procedures for multispectral imaging and preparing data for downstream analysis. For complete details on the use and execution of this protocol, please refer to Goossens et al. (2022).1.
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Affiliation(s)
- Elias B Wieland
- Cardiovascular Research Institute Maastricht, Experimental Vascular Pathology, Department of Pathology, Maastricht University Medical Center+, Maastricht, The Netherlands
| | - Laura J A P Kempen
- Cardiovascular Research Institute Maastricht, Experimental Vascular Pathology, Department of Pathology, Maastricht University Medical Center+, Maastricht, The Netherlands; Laboratory of Immunology and Vaccinology, Faculty of Veterinary Medicine, FARAH, Liège University, Liège, Belgium; Laboratory of Immunophysiology, GIGA Institute, Liège University, Liège, Belgium
| | - Chang Lu
- Cardiovascular Research Institute Maastricht, Experimental Vascular Pathology, Department of Pathology, Maastricht University Medical Center+, Maastricht, The Netherlands; Institute for Computational Biomedicine, Heidelberg, Germany
| | - Marjo M P C Donners
- Cardiovascular Research Institute Maastricht, Experimental Vascular Pathology, Department of Pathology, Maastricht University Medical Center+, Maastricht, The Netherlands
| | - Erik A L Biessen
- Cardiovascular Research Institute Maastricht, Experimental Vascular Pathology, Department of Pathology, Maastricht University Medical Center+, Maastricht, The Netherlands; Institute for Molecular Cardiovascular Research, RWTH Aachen University, Aachen, Germany
| | - Pieter Goossens
- Cardiovascular Research Institute Maastricht, Experimental Vascular Pathology, Department of Pathology, Maastricht University Medical Center+, Maastricht, The Netherlands.
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5
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Lu C, Donners MMPC, Karel J, de Boer H, van Zonneveld AJ, den Ruijter H, Jukema JW, Kraaijeveld A, Kuiper J, Pasterkamp G, Cavill R, Perales-Patón J, Ferrannini E, Goossens P, Biessen EAL. Sex-specific differences in cytokine signaling pathways in circulating monocytes of cardiovascular disease patients. Atherosclerosis 2023; 384:117123. [PMID: 37127497 DOI: 10.1016/j.atherosclerosis.2023.04.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 03/14/2023] [Accepted: 04/14/2023] [Indexed: 05/03/2023]
Abstract
BACKGROUND AND AIMS This study aims to identify sex-specific transcriptional differences and signaling pathways in circulating monocytes contributing to cardiovascular disease. METHODS AND RESULTS We generated sex-biased gene expression signatures by comparing male versus female monocytes of coronary artery disease (CAD) patients (n = 450) from the Center for Translational Molecular Medicine-Circulating Cells Cohort. Gene set enrichment analysis demonstrated that monocytes from female CAD patients carry stronger chemotaxis and migratory signature than those from males. We then inferred cytokine signaling activities based on CytoSig database of 51 cytokine and growth factor regulation profiles. Monocytes from females feature a higher activation level of EGF, IFN1, VEGF, GM-CSF, and CD40L pathways, whereas IL-4, INS, and HMGB1 signaling was seen to be more activated in males. These sex differences were not observed in healthy subjects, as shown for an independent monocyte cohort of healthy subjects (GSE56034, n = 485). More pronounced GM-CSF signaling in monocytes of female CAD patients was confirmed by the significant enrichment of GM-CSF-activated monocyte signature in females. As we show these effects were not due to increased plasma levels of the corresponding ligands, sex-intrinsic differences in monocyte signaling regulation are suggested. Consistently, regulatory network analysis revealed jun-B as a shared transcription factor activated in all female-specific pathways except IFN1 but suppressed in male-activated IL-4. CONCLUSIONS We observed overt CAD-specific sex differences in monocyte transcriptional profiles and cytokine- or growth factor-induced responses, which provide insights into underlying mechanisms of sex differences in CVD.
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Affiliation(s)
- Chang Lu
- Department of Pathology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht UMC+, Maastricht University, Maastricht, the Netherlands
| | - Marjo M P C Donners
- Department of Pathology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht UMC+, Maastricht University, Maastricht, the Netherlands.
| | - Joël Karel
- Department of Advanced Computing Sciences, Maastricht University, Maastricht, the Netherlands
| | - Hetty de Boer
- Department of Internal Medicine (Nephrology), Leiden UMC, Leiden, the Netherlands
| | | | - Hester den Ruijter
- Laboratory for Experimental Cardiology, Department of Cardiology, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands
| | - J Wouter Jukema
- Department of Cardiology, Leiden University Medical Center, Leiden, the Netherlands; Netherlands Heart Institute, Utrecht, the Netherlands
| | - Adriaan Kraaijeveld
- Department of Cardiology, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Johan Kuiper
- Division of BioTherapeutics, Leiden Academic Centre for Drug Research, Leiden University, Leiden, the Netherlands
| | | | - Rachel Cavill
- Department of Advanced Computing Sciences, Maastricht University, Maastricht, the Netherlands
| | - Javier Perales-Patón
- Institute for Computational Biomedicine, Faculty of Medicine, Heidelberg University and Heidelberg University Hospital, Heidelberg, Germany; Institute of Experimental Medicine and Systems Biology, RWTH Aachen University, Aachen, Germany; Joint Research Centre for Computational Biomedicine (JRC COMBINE), Faculty of Medicine, RWTH Aachen University, Aachen, Germany
| | - Ele Ferrannini
- Consiglio Nazionale Delle Ricerche (CNR) Institute of Clinical Physiology, Pisa, Italy
| | - Pieter Goossens
- Department of Pathology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht UMC+, Maastricht University, Maastricht, the Netherlands
| | - Erik A L Biessen
- Department of Pathology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht UMC+, Maastricht University, Maastricht, the Netherlands; Institute for Molecular Cardiovascular Research, RWTH Aachen University, Aachen, 52074, Germany
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6
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Nagenborg J, Jin H, Ruder AV, Temmerman L, Mees B, Schalkwijk C, Müller-Klieser D, Berg T, Goossens P, Donners MMPC, Biessen EAL. GM-CSF-activated STAT5A regulates macrophage functions and inflammation in atherosclerosis. Front Immunol 2023; 14:1165306. [PMID: 37920458 PMCID: PMC10619680 DOI: 10.3389/fimmu.2023.1165306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Accepted: 09/14/2023] [Indexed: 11/04/2023] Open
Abstract
Introduction Inhibition of STAT5 was recently reported to reduce murine atherosclerosis. However, the role of STAT5 isoforms, and more in particular STAT5A in macrophages in the context of human atherosclerosis remains unknown. Methods and results Here, we demonstrate reciprocal expression regulation of STAT5A and STAT5B in human atherosclerotic lesions. The former was highly upregulated in ruptured over stable plaque and correlated with macrophage presence, a finding that was corroborated by the high chromosomal accessibility of STAT5A but not B gene in plaque macrophages. Phosphorylated STAT5 correlated with macrophages confirming its activation status. As macrophage STAT5 is activated by GM-CSF, we studied the effects of its silencing in GM-CSF differentiated human macrophages. STAT5A knockdown blunted the immune response, phagocytosis, cholesterol metabolism, and augmented apoptosis terms on transcriptional levels. These changes could partially be confirmed at functional level, with significant increases in apoptosis and decreases in lipid uptake and IL-6, IL-8, and TNFa cytokine secretion after STAT5A knockdown. Finally, inhibition of general and isoform A specific STAT5 significantly reduced the secretion of TNFa, IL-8 and IL-10 in ex vivo tissue slices of advanced human atherosclerotic plaques. Discussion In summary, we identify STAT5A as an important determinant of macrophage functions and inflammation in the context of atherosclerosis and show its promise as therapeutic target in human atherosclerotic plaque inflammation.
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Affiliation(s)
- Jan Nagenborg
- Department of Pathology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center (UMC), Maastricht, Netherlands
| | - Han Jin
- Department of Pathology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center (UMC), Maastricht, Netherlands
| | - Adele V. Ruder
- Department of Pathology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center (UMC), Maastricht, Netherlands
| | - Lieve Temmerman
- Department of Pathology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center (UMC), Maastricht, Netherlands
| | - Barend Mees
- Department of Pathology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center (UMC), Maastricht, Netherlands
- Department of Vascular Surgery, Maastricht University Medical Center+ (MUMC+), Maastricht, Netherlands
| | - Casper Schalkwijk
- Cardiovascular Research Institute Maastricht (CARIM), University Maastricht, Maastricht, Netherlands
| | - Daniel Müller-Klieser
- Institute for Organic Chemistry, Faculty of Chemistry and Mineralogy, Leipzig, Germany
| | - Thorsten Berg
- Institute for Organic Chemistry, Faculty of Chemistry and Mineralogy, Leipzig, Germany
| | - Pieter Goossens
- Department of Pathology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center (UMC), Maastricht, Netherlands
| | - Marjo M. P. C. Donners
- Department of Pathology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center (UMC), Maastricht, Netherlands
| | - Erik A. L. Biessen
- Department of Pathology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center (UMC), Maastricht, Netherlands
- Institute for Molecular Cardiovascular Research, Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen University, Aachen, Germany
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Ruder AV, Wetzels SMW, Temmerman L, Biessen EAL, Goossens P. Monocyte heterogeneity in cardiovascular disease. Cardiovasc Res 2023; 119:2033-2045. [PMID: 37161473 PMCID: PMC10478755 DOI: 10.1093/cvr/cvad069] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 02/07/2023] [Accepted: 02/21/2023] [Indexed: 05/11/2023] Open
Abstract
Monocytes circulate the vasculature at steady state and are recruited to sites of inflammation where they differentiate into macrophages (MФ) to replenish tissue-resident MФ populations and engage in the development of cardiovascular disease (CVD). Monocytes display considerable heterogeneity, currently reflected by a nomenclature based on their expression of cluster of differentiation (CD) 14 and CD16, distinguishing CD14++CD16- classical (cMo), CD14++CD16+ intermediate (intMo) and CD14+CD16++ non-classical (ncMo) monocytes. Several reports point to shifted subset distributions in the context of CVD, with significant association of intMo numbers with atherosclerosis, myocardial infarction, and heart failure. However, clear indications of their causal involvement as well as their predictive value for CVD are lacking. As recent high-parameter cytometry and single-cell RNA sequencing (scRNA-Seq) studies suggest an even higher degree of heterogeneity, better understanding of the functionalities of these subsets is pivotal. Considering their high heterogeneity, surprisingly little is known about functional differences between MФ originating from monocytes belonging to different subsets, and implications thereof for CVD pathogenesis. This paper provides an overview of recent findings on monocyte heterogeneity in the context of homeostasis and disease as well as functional differences between the subsets and their potential to differentiate into MФ, focusing on their role in vessels and the heart. The emerging paradigm of monocyte heterogeneity transcending the current tripartite subset division argues for an updated nomenclature and functional studies to substantiate marker-based subdivision and to clarify subset-specific implications for CVD.
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Affiliation(s)
- Adele V Ruder
- Department of Pathology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center (MUMC+), P. Debyelaan 25, 6229 HX Maastricht, The Netherlands
| | - Suzan M W Wetzels
- Department of Pathology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center (MUMC+), P. Debyelaan 25, 6229 HX Maastricht, The Netherlands
| | - Lieve Temmerman
- Department of Pathology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center (MUMC+), P. Debyelaan 25, 6229 HX Maastricht, The Netherlands
| | - Erik A L Biessen
- Department of Pathology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center (MUMC+), P. Debyelaan 25, 6229 HX Maastricht, The Netherlands
- Institute for Molecular Cardiovascular Research, RWTH Aachen University, Pauwelsstraße 30, 52074 Aachen, Germany
| | - Pieter Goossens
- Department of Pathology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center (MUMC+), P. Debyelaan 25, 6229 HX Maastricht, The Netherlands
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8
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van Kuijk K, McCracken IR, Tillie RJHA, Asselberghs SEJ, Kheder DA, Muitjens S, Jin H, Taylor RS, Wichers Schreur R, Kuppe C, Dobie R, Ramachandran P, Gijbels MJ, Temmerman L, Kirkwoord PM, Luyten J, Li Y, Noels H, Goossens P, Wilson-Kanamori JR, Schurgers LJ, Shen YH, Mees BME, Biessen EAL, Henderson NC, Kramann R, Baker AH, Sluimer JC. Human and murine fibroblast single-cell transcriptomics reveals fibroblast clusters are differentially affected by ageing and serum cholesterol. Cardiovasc Res 2023; 119:1509-1523. [PMID: 36718802 PMCID: PMC10318398 DOI: 10.1093/cvr/cvad016] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 10/21/2022] [Accepted: 11/04/2022] [Indexed: 02/01/2023] Open
Abstract
AIMS Specific fibroblast markers and in-depth heterogeneity analysis are currently lacking, hindering functional studies in cardiovascular diseases (CVDs). Here, we established cell-type markers and heterogeneity in murine and human arteries and studied the adventitial fibroblast response to CVD and its risk factors hypercholesterolaemia and ageing. METHODS AND RESULTS Murine aorta single-cell RNA-sequencing analysis of adventitial mesenchymal cells identified fibroblast-specific markers. Immunohistochemistry and flow cytometry validated platelet-derived growth factor receptor alpha (PDGFRA) and dipeptidase 1 (DPEP1) across human and murine aorta, carotid, and femoral arteries, whereas traditional markers such as the cluster of differentiation (CD)90 and vimentin also marked transgelin+ vascular smooth muscle cells. Next, pseudotime analysis showed multiple fibroblast clusters differentiating along trajectories. Three trajectories, marked by CD55 (Cd55+), Cxcl chemokine 14 (Cxcl14+), and lysyl oxidase (Lox+), were reproduced in an independent RNA-seq dataset. Gene ontology (GO) analysis showed divergent functional profiles of the three trajectories, related to vascular development, antigen presentation, and/or collagen fibril organization, respectively. Trajectory-specific genes included significantly more genes with known genome-wide associations (GWAS) to CVD than expected by chance, implying a role in CVD. Indeed, differential regulation of fibroblast clusters by CVD risk factors was shown in the adventitia of aged C57BL/6J mice, and mildly hypercholesterolaemic LDLR KO mice on chow by flow cytometry. The expansion of collagen-related CXCL14+ and LOX+ fibroblasts in aged and hypercholesterolaemic aortic adventitia, respectively, coincided with increased adventitial collagen. Immunohistochemistry, bulk, and single-cell transcriptomics of human carotid and aorta specimens emphasized translational value as CD55+, CXCL14+ and LOX+ fibroblasts were observed in healthy and atherosclerotic specimens. Also, trajectory-specific gene sets are differentially correlated with human atherosclerotic plaque traits. CONCLUSION We provide two adventitial fibroblast-specific markers, PDGFRA and DPEP1, and demonstrate fibroblast heterogeneity in health and CVD in humans and mice. Biological relevance is evident from the regulation of fibroblast clusters by age and hypercholesterolaemia in vivo, associations with human atherosclerotic plaque traits, and enrichment of genes with a GWAS for CVD.
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Affiliation(s)
- Kim van Kuijk
- Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, PO Box 5800, 6202 AZ Maastricht, The Netherlands
- Institute of Experimental Medicine and Systems Biology, Faculty of Medicine, RWTH Aachen University, Aachen, Germany
| | - Ian R McCracken
- BHF Centre for Cardiovascular Sciences (CVS), Queen's Medical Research Institute, University of Edinburgh, 47 Little France Crescent, Edinburgh EH16 4TJ, UK
| | - Renée J H A Tillie
- Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, PO Box 5800, 6202 AZ Maastricht, The Netherlands
| | - Sebastiaan E J Asselberghs
- Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, PO Box 5800, 6202 AZ Maastricht, The Netherlands
- Department of Vascular Surgery, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Dlzar A Kheder
- Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, PO Box 5800, 6202 AZ Maastricht, The Netherlands
| | - Stan Muitjens
- Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, PO Box 5800, 6202 AZ Maastricht, The Netherlands
| | - Han Jin
- Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, PO Box 5800, 6202 AZ Maastricht, The Netherlands
| | - Richard S Taylor
- BHF Centre for Cardiovascular Sciences (CVS), Queen's Medical Research Institute, University of Edinburgh, 47 Little France Crescent, Edinburgh EH16 4TJ, UK
| | - Ruud Wichers Schreur
- Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, PO Box 5800, 6202 AZ Maastricht, The Netherlands
| | - Christoph Kuppe
- Institute of Experimental Medicine and Systems Biology, Faculty of Medicine, RWTH Aachen University, Aachen, Germany
- Division of Nephrology and Clinical Immunology, Faculty of Medicine, RWTH Aachen University, Aachen, Germany
| | - Ross Dobie
- Centre for Inflammation Research, University of Edinburgh, Edinburgh, UK
| | - Prakesh Ramachandran
- Department of Medical Biochemistry, Experimental Vascular Biology, Amsterdam UMC, Amsterdam, The Netherlands
| | - Marion J Gijbels
- Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, PO Box 5800, 6202 AZ Maastricht, The Netherlands
- Department of Medical Biochemistry, Experimental Vascular Biology, Amsterdam UMC, Amsterdam, The Netherlands
- GROW, School for Oncology and Development Biology, Maastricht University, Maastricht, The Netherlands
| | - Lieve Temmerman
- Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, PO Box 5800, 6202 AZ Maastricht, The Netherlands
| | - Phoebe M Kirkwoord
- Centre for Inflammation Research, University of Edinburgh, Edinburgh, UK
| | - Joris Luyten
- Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, PO Box 5800, 6202 AZ Maastricht, The Netherlands
- Department of Vascular Surgery, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Yanming Li
- Division of Cardiothoracic Surgery, Baylor College of Medicine, Houston, TX, USA
- Department of Cardiovascular Surgery, Texas Heart Institute, Houston, TX, USA
| | - Heidi Noels
- Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, PO Box 5800, 6202 AZ Maastricht, The Netherlands
| | - Pieter Goossens
- Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, PO Box 5800, 6202 AZ Maastricht, The Netherlands
| | - John R Wilson-Kanamori
- Division of Nephrology and Clinical Immunology, Faculty of Medicine, RWTH Aachen University, Aachen, Germany
| | - Leon J Schurgers
- Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, PO Box 5800, 6202 AZ Maastricht, The Netherlands
- Institute of Experimental Medicine and Systems Biology, Faculty of Medicine, RWTH Aachen University, Aachen, Germany
| | - Ying H Shen
- Division of Cardiothoracic Surgery, Baylor College of Medicine, Houston, TX, USA
- Department of Cardiovascular Surgery, Texas Heart Institute, Houston, TX, USA
| | - Barend M E Mees
- Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, PO Box 5800, 6202 AZ Maastricht, The Netherlands
- Department of Vascular Surgery, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Erik A L Biessen
- Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, PO Box 5800, 6202 AZ Maastricht, The Netherlands
- Institute for Molecular Cardiovascular Research, RWTH Aachen University, Aachen, Germany
| | - Neil C Henderson
- Division of Nephrology and Clinical Immunology, Faculty of Medicine, RWTH Aachen University, Aachen, Germany
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - Rafael Kramann
- Institute of Experimental Medicine and Systems Biology, Faculty of Medicine, RWTH Aachen University, Aachen, Germany
- Department of Vascular Surgery, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Andrew H Baker
- Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, PO Box 5800, 6202 AZ Maastricht, The Netherlands
- BHF Centre for Cardiovascular Sciences (CVS), Queen's Medical Research Institute, University of Edinburgh, 47 Little France Crescent, Edinburgh EH16 4TJ, UK
| | - Judith C Sluimer
- Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, PO Box 5800, 6202 AZ Maastricht, The Netherlands
- BHF Centre for Cardiovascular Sciences (CVS), Queen's Medical Research Institute, University of Edinburgh, 47 Little France Crescent, Edinburgh EH16 4TJ, UK
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9
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Ruder AV, Temmerman L, van Dommelen JM, Nagenborg J, Lu C, Sluimer JC, Goossens P, Biessen EA. Culture density influences the functional phenotype of human macrophages. Front Immunol 2023; 14:1078591. [PMID: 36969194 PMCID: PMC10036771 DOI: 10.3389/fimmu.2023.1078591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Accepted: 02/28/2023] [Indexed: 03/12/2023] Open
Abstract
Macrophages (MΦ) are commonly cultured in vitro as a model of their biology and functions in tissues. Recent evidence suggests MΦ to engage in quorum sensing, adapting their functions in response to cues about the proximity of neighboring cells. However, culture density is frequently overlooked in the standardization of culture protocols as well as the interpretation of results obtained in vitro. In this study, we investigated how the functional phenotype of MΦ was influenced by culture density. We assessed 10 core functions of human MΦ derived from the THP-1 cell line as well as primary monocyte-derived MΦ. THP-1 MΦ showed increasing phagocytic activity and proliferation with increasing density but decreasing lipid uptake, inflammasome activation, mitochondrial stress, and secretion of cytokines IL-10, IL-6, IL-1β, IL-8, and TNF-α. For THP-1 MΦ, the functional profile displayed a consistent trajectory with increasing density when exceeding a threshold (of 0.2 x 103 cells/mm2), as visualized by principal component analysis. Culture density was also found to affect monocyte-derived MΦ, with functional implications that were distinct from those observed in THP-1 MΦ, suggesting particular relevance of density effects for cell lines. With increasing density, monocyte-derived MΦ exhibited progressively increased phagocytosis, increased inflammasome activation, and decreased mitochondrial stress, whereas lipid uptake was unaffected. These different findings in THP-1 MΦ and monocyte-derived MΦ could be attributed to the colony-forming growth pattern of THP-1 MΦ. At the lowest density, the distance to the closest neighboring cells showed greater influence on THP-1 MΦ than monocyte-derived MΦ. In addition, functional differences between monocyte-derived MΦ from different donors could at least partly be attributed to differences in culture density. Our findings demonstrate the importance of culture density for MΦ function and demand for awareness of culture density when conducting and interpreting in vitro experiments.
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Affiliation(s)
- Adele V. Ruder
- Cardiovascular Research Institute Maastricht (CARIM), Department of Pathology, Maastricht University Medical Center (UMC), Maastricht, Netherlands
| | - Lieve Temmerman
- Cardiovascular Research Institute Maastricht (CARIM), Department of Pathology, Maastricht University Medical Center (UMC), Maastricht, Netherlands
| | - Joep M.A. van Dommelen
- Cardiovascular Research Institute Maastricht (CARIM), Department of Pathology, Maastricht University Medical Center (UMC), Maastricht, Netherlands
| | - Jan Nagenborg
- Cardiovascular Research Institute Maastricht (CARIM), Department of Pathology, Maastricht University Medical Center (UMC), Maastricht, Netherlands
| | - Chang Lu
- Cardiovascular Research Institute Maastricht (CARIM), Department of Pathology, Maastricht University Medical Center (UMC), Maastricht, Netherlands
| | - Judith C. Sluimer
- Cardiovascular Research Institute Maastricht (CARIM), Department of Pathology, Maastricht University Medical Center (UMC), Maastricht, Netherlands
- BHF Centre for Cardiovascular Science, University of Edinburgh, Edinburgh, United Kingdom
| | - Pieter Goossens
- Cardiovascular Research Institute Maastricht (CARIM), Department of Pathology, Maastricht University Medical Center (UMC), Maastricht, Netherlands
| | - Erik A.L. Biessen
- Cardiovascular Research Institute Maastricht (CARIM), Department of Pathology, Maastricht University Medical Center (UMC), Maastricht, Netherlands
- Institute for Molecular Cardiovascular Research, RWTH Aachen University, Aachen, Germany
- *Correspondence: Erik A.L. Biessen,
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10
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Hendriks S, Goossens P. Pharmacological treatment of comorbid posttraumatic stress disorder in patients with bipolar disorder. Eur Psychiatry 2022. [PMCID: PMC9564947 DOI: 10.1192/j.eurpsy.2022.1030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Introduction The lifetime prevalence of comorbid posttraumatic stress disorder (PTSD) in patients with bipolar disorder (BD) is approximately 20%. Guidelines for BD give adequate pharmacological treatment options when there is a ‘pure’ bipolar disorder but lack of treatment options when there is a comorbid disorder present. Objectives The present study aimed to review the pharmacological treatment options for comorbid PTSD in patients with BD. Methods Literature research was conducted via PubMed, Embase and the Cochrane Library. Search terms included ‘bipolar disorder’, ‘posttraumatic stress disorder’, ‘PTSD’, ‘pharmacotherapy’ and ‘treatment’. Relevant studies were reviewed. Results No randomized controlled trials have been conducted in patients with bipolar disorder and comorbid PTSD. Most studies included open-label studies and case-reports. No convincing scientific evidence for pharmacological treatment of comorbid PTSD in patients with BD was found. Selective serotonin reuptake inhibitors (SSRIs) are effective in the treatment of PTSD. However, SSRIs or other antidepressants are complicated due to potential induction of a manic episode or promote rapid cycling. Nevertheless, it is important to treat the bipolar patient with a mood stabilizer first before antidepressants are prescribed. Conclusions The findings of this study show that there is no convincing scientific evidence for the pharmacological treatment of comorbid PTSD in patients with bipolar disorder. Therefore, psychotherapy is preferable. When psychotherapy is not effective, pharmacotherapy can be considered. However, randomized controlled trials are needed to obtain scientific evidence for pharmacological treatment options. Disclosure No significant relationships.
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11
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Jin H, Goossens P, Juhasz P, Eijgelaar W, Manca M, Karel JMH, Smirnov E, Sikkink CJJM, Mees BME, Waring O, van Kuijk K, Fazzi GE, Gijbels MJJ, Kutmon M, Evelo CTA, Hedin U, Daemen MJAP, Sluimer JC, Matic L, Biessen EAL. Integrative multiomics analysis of human atherosclerosis reveals a serum response factor-driven network associated with intraplaque hemorrhage. Clin Transl Med 2021; 11:e458. [PMID: 34185408 PMCID: PMC8236116 DOI: 10.1002/ctm2.458] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 05/21/2021] [Accepted: 05/25/2021] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND While single-omics analyses on human atherosclerotic plaque have been very useful to map stage- or disease-related differences in expression, they only partly capture the array of changes in this tissue and suffer from scale-intrinsic limitations. In order to better identify processes associated with intraplaque hemorrhage and plaque instability, we therefore combined multiple omics into an integrated model. METHODS In this study, we compared protein and gene makeup of low- versus high-risk atherosclerotic lesion segments from carotid endarterectomy patients, as judged from the absence or presence of intraplaque hemorrhage, respectively. Transcriptomic, proteomic, and peptidomic data of this plaque cohort were aggregated and analyzed by DIABLO, an integrative multivariate classification and feature selection method. RESULTS We identified a protein-gene associated multiomics model able to segregate stable, nonhemorrhaged from vulnerable, hemorrhaged lesions at high predictive performance (AUC >0.95). The dominant component of this model correlated with αSMA- PDGFRα+ fibroblast-like cell content (p = 2.4E-05) and Arg1+ macrophage content (p = 2.2E-04) and was driven by serum response factor (SRF), possibly in a megakaryoblastic leukemia-1/2 (MKL1/2) dependent manner. Gene set overrepresentation analysis on the selected key features of this model pointed to a clear cardiovascular disease signature, with overrepresentation of extracellular matrix synthesis and organization, focal adhesion, and cholesterol metabolism terms, suggestive of the model's relevance for the plaque vulnerability. Finally, we were able to corroborate the predictive power of the selected features in several independent mRNA and proteomic plaque cohorts. CONCLUSIONS In conclusion, our integrative omics study has identified an intraplaque hemorrhage-associated cardiovascular signature that provides excellent stratification of low- from high-risk carotid artery plaques in several independent cohorts. Further study revealed suppression of an SRF-regulated disease network, controlling lesion stability, in vulnerable plaque, which can serve as a scaffold for the design of targeted intervention in plaque destabilization.
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Affiliation(s)
- Han Jin
- Department of PathologySchool for Cardiovascular Diseases (CARIM)Maastricht UMC+MaastrichtThe Netherlands
| | - Pieter Goossens
- Department of PathologySchool for Cardiovascular Diseases (CARIM)Maastricht UMC+MaastrichtThe Netherlands
| | | | - Wouter Eijgelaar
- Department of PathologySchool for Cardiovascular Diseases (CARIM)Maastricht UMC+MaastrichtThe Netherlands
| | - Marco Manca
- Department of PathologySchool for Cardiovascular Diseases (CARIM)Maastricht UMC+MaastrichtThe Netherlands
| | - Joël M. H. Karel
- Department of Data Science and Knowledge EngineeringMaastricht UniversityMaastrichtThe Netherlands
| | - Evgueni Smirnov
- Department of Data Science and Knowledge EngineeringMaastricht UniversityMaastrichtThe Netherlands
| | | | | | - Olivia Waring
- Department of PathologySchool for Cardiovascular Diseases (CARIM)Maastricht UMC+MaastrichtThe Netherlands
| | - Kim van Kuijk
- Department of PathologySchool for Cardiovascular Diseases (CARIM)Maastricht UMC+MaastrichtThe Netherlands
| | - Gregorio E. Fazzi
- Department of PathologySchool for Cardiovascular Diseases (CARIM)Maastricht UMC+MaastrichtThe Netherlands
| | - Marion J. J. Gijbels
- Department of PathologySchool for Cardiovascular Diseases (CARIM)Maastricht UMC+MaastrichtThe Netherlands
- Department of Medical BiochemistryExperimental Vascular BiologyAmsterdam UMCAmsterdamThe Netherlands
- School for Oncology and Developmental Biology (GROW)Maastricht UniversityMaastrichtThe Netherlands
| | - Martina Kutmon
- Department of Bioinformatics (BiGCaT)Maastricht Centre for Systems Biology (MaCSBio)Maastricht UniversityMaastrichtThe Netherlands
| | - Chris T. A. Evelo
- Department of Bioinformatics (BiGCaT)Maastricht Centre for Systems Biology (MaCSBio)Maastricht UniversityMaastrichtThe Netherlands
| | - Ulf Hedin
- Department of Molecular Medicine and SurgeryKarolinska InstituteSolnaSweden
| | - Mat J. A. P. Daemen
- Department of PathologyAmsterdam Cardiovascular SciencesAmsterdam UMCAmsterdamThe Netherlands
| | - Judith C. Sluimer
- Department of PathologySchool for Cardiovascular Diseases (CARIM)Maastricht UMC+MaastrichtThe Netherlands
- BHF Centre for Cardiovascular Science (CVS)University of EdinburghEdinburghScotland
| | - Ljubica Matic
- Department of Molecular Medicine and SurgeryKarolinska InstituteSolnaSweden
| | - Erik A. L. Biessen
- Department of PathologySchool for Cardiovascular Diseases (CARIM)Maastricht UMC+MaastrichtThe Netherlands
- Institute for Molecular Cardiovascular ResearchRWTH Aachen UniversityAachenGermany
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12
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Wilkinson H, Leonard H, Chen D, Lawrence T, Robson M, Goossens P, McVey JH, Dorling A. PAR-1 signaling on macrophages is required for effective in vivo delayed-type hypersensitivity responses. iScience 2021; 24:101981. [PMID: 33458623 PMCID: PMC7797913 DOI: 10.1016/j.isci.2020.101981] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 11/13/2020] [Accepted: 12/17/2020] [Indexed: 12/15/2022] Open
Abstract
Delayed-type hypersensitivity (DTH) responses underpin chronic inflammation. Using a model of oxazolone-induced dermatitis and a combination of transgenic mice, adoptive cell transfer, and selective agonists/antagonists against protease activated receptors, we show that that PAR-1 signaling on macrophages by thrombin is required for effective granuloma formation. Using BM-derived macrophages (BMMs) in vitro, we show that thrombin signaling induced (a) downregulation of cell membrane reverse cholesterol transporter ABCA1 and (b) increased expression of IFNγ receptor and enhanced co-localization within increased areas of cholesterol-rich membrane microdomains. These two key phenotypic changes combined to make thrombin-primed BMMs sensitive to M1 polarization by 1000-fold less IFNγ, compared to resting BMMs. We confirm that changes in ABCA1 expression were directly responsible for the exquisite sensitivity to IFNγ in vitro and for the impact on granuloma formation in vivo. These data indicate that PAR-1 signaling plays a hitherto unrecognized and critical role in DTH responses.
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Affiliation(s)
- Hannah Wilkinson
- Department of Inflammation Biology, School of Immunology & Microbial Sciences, King's College London, Guy's Hospital, London SE1 9RT, UK
| | - Hugh Leonard
- Department of Inflammation Biology, School of Immunology & Microbial Sciences, King's College London, Guy's Hospital, London SE1 9RT, UK
| | - Daxin Chen
- Department of Inflammation Biology, School of Immunology & Microbial Sciences, King's College London, Guy's Hospital, London SE1 9RT, UK
| | - Toby Lawrence
- Centre for Inflammation Biology and Cancer Immunology, School of Immunology & Microbial Sciences, King's College London, London SE1 9RT, UK
| | - Michael Robson
- Department of Inflammation Biology, School of Immunology & Microbial Sciences, King's College London, Guy's Hospital, London SE1 9RT, UK
| | - Pieter Goossens
- Department of Pathology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, 6229HX Maastricht, the Netherlands
| | - John H McVey
- School of Bioscience & Medicine, Faculty of Health and Medical Sciences, University of Surrey, Guildford GU2 7XH, UK
| | - Anthony Dorling
- Department of Inflammation Biology, School of Immunology & Microbial Sciences, King's College London, Guy's Hospital, London SE1 9RT, UK
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13
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Cao J, Goossens P, Martin-Lorenzo M, Dewez F, Claes B, Biessen E, Heeren R, Balluff B. Atheroma-specific lipids in LDLR−/− and APOE−/− mice by matrix-assisted laser desorption/ionization mass spectrometry imaging. Atherosclerosis 2020. [DOI: 10.1016/j.atherosclerosis.2020.10.491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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14
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Cao J, Goossens P, Martin-Lorenzo M, Dewez F, Claes BSR, Biessen EAL, Heeren RMA, Balluff B. Atheroma-Specific Lipids in ldlr-/- and apoe-/- Mice Using 2D and 3D Matrix-Assisted Laser Desorption/Ionization Mass Spectrometry Imaging. J Am Soc Mass Spectrom 2020; 31:1825-1832. [PMID: 32872786 PMCID: PMC7472746 DOI: 10.1021/jasms.0c00070] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Atherosclerosis is the major contributor to cardiovascular diseases. It is a spatially and temporally complex inflammatory disease, in which intravascular accumulation of a plethora of lipids is considered to play a crucial role. To date, both the composition and local distribution of the involved lipids have not been thoroughly mapped yet. Matrix-assisted laser desorption/ionization (MALDI) mass spectrometry imaging (MSI) enables analyzing and visualizing hundreds of lipid molecules within the plaque while preserving each lipid's specific location. In this study, we aim to identify and verify aortic plaque-specific lipids with high-spatial-resolution 2D and 3D MALDI-MSI common to high-fat-diet-fed low-density lipoprotein receptor deficient (ldlr-/-) mice and chow-fed apolipoprotein E deficient (apoe-/-) mice, the two most widely used animal models for atherosclerosis. A total of 11 lipids were found to be significantly and specifically colocalized to the plaques in both mouse models. These were identified and belong to one sphingomyelin (SM), three lysophosphatidic acids (LPA), four lysophosphatidylcholines (LPC), two lysophosphatidylethanolamines (LPE), and one lysophosphatidylinositol (LPI). While these lysolipids and SM 34:0;2 were characteristic of the atherosclerotic aorta plaque itself, LPI 18:0 was mainly localized in the necrotic core of the plaque.
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Affiliation(s)
- Jianhua Cao
- Maastricht Multimodal Molecular Imaging Institute
(M4I), Maastricht University, 6200 MD Maastricht, The
Netherlands
| | - Pieter Goossens
- Maastricht UMC+, Pathology Department,
Cardiovascular Research Institute Maastricht (CARIM), 6202 AZ
Maastricht, The Netherlands
| | - Marta Martin-Lorenzo
- Maastricht Multimodal Molecular Imaging Institute
(M4I), Maastricht University, 6200 MD Maastricht, The
Netherlands
- Immunology Department, IIS-Fundacion
Jimenez Diaz-UAM, 28040 Madrid, Spain
| | - Frédéric Dewez
- Maastricht Multimodal Molecular Imaging Institute
(M4I), Maastricht University, 6200 MD Maastricht, The
Netherlands
- Mass Spectrometry Laboratory (MSLab),
University of Liège, B-4000 Liège,
Belgium
| | - Britt S. R. Claes
- Maastricht Multimodal Molecular Imaging Institute
(M4I), Maastricht University, 6200 MD Maastricht, The
Netherlands
| | - Erik A. L. Biessen
- Maastricht UMC+, Pathology Department,
Cardiovascular Research Institute Maastricht (CARIM), 6202 AZ
Maastricht, The Netherlands
| | - Ron M. A. Heeren
- Maastricht Multimodal Molecular Imaging Institute
(M4I), Maastricht University, 6200 MD Maastricht, The
Netherlands
| | - Benjamin Balluff
- Maastricht Multimodal Molecular Imaging Institute
(M4I), Maastricht University, 6200 MD Maastricht, The
Netherlands
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15
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Kerkhofs D, van Hagen BT, Milanova IV, Schell KJ, van Essen H, Wijnands E, Goossens P, Blankesteijn WM, Unger T, Prickaerts J, Biessen EA, van Oostenbrugge RJ, Foulquier S. Pharmacological depletion of microglia and perivascular macrophages prevents Vascular Cognitive Impairment in Ang II-induced hypertension. Am J Cancer Res 2020; 10:9512-9527. [PMID: 32863942 PMCID: PMC7449902 DOI: 10.7150/thno.44394] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Accepted: 06/12/2020] [Indexed: 12/19/2022] Open
Abstract
Rationale: Hypertension is a major risk factor for cerebral small vessel disease, the most prevalent cause of vascular cognitive impairment. As we have shown, hypertension induced by a prolonged Angiotensin II infusion is associated with increased permeability of the blood-brain barrier (BBB), chronic activation of microglia and myelin loss. In this study we therefore aim to determine the contribution of microglia to hypertension-induced cognitive impairment in an experimental hypertension model by a pharmacological depletion approach. Methods: For this study, adult Cx3Cr1gfp/wtxThy1yfp/0 reporter mice were infused for 12 weeks with Angiotensin II or saline and subgroups were treated with PLX5622, a highly selective CSF1R tyrosine kinase inhibitor. Systolic blood pressure (SBP) was measured via tail-cuff. Short- and long-term spatial memory was assessed during an Object Location task and a Morris Water Maze task (MWM). Microglia depletion efficacy was assessed by flow cytometry and immunohistochemistry. BBB leakages, microglia phenotype and myelin integrity were assessed by immunohistochemistry. Results: SBP, heart weight and carotid pulsatility were increased by Ang II and were not affected by PLX5622. Short-term memory was significantly impaired in Ang II hypertensive mice, and partly prevented in Ang II mice treated with PLX5622. Histological and flow cytometry analysis revealed almost complete ablation of microglia and a 60% depletion of brain resident perivascular macrophages upon CSF1R inhibition. Number and size of BBB leakages were increased in Ang II hypertensive mice, but not altered by PLX5622 treatment. Microglia acquired a pro-inflammatory phenotype at the site of BBB leakages in both Saline and Ang II mice and were successfully depleted by PLX5622. There was however no significant change in myelin integrity at the site of leakages. Conclusion: Our results show that depletion of microglia and PVMs, by CSF1R inhibition prevents short-term memory impairment in Ang II induced hypertensive mice. We suggest this beneficial effect is mediated by the major decrease of pro-inflammatory microglia within BBB leakages. This novel finding supports the critical role of brain immune cells in the pathogenesis of hypertension-related cognitive impairment. An adequate modulation of microglia /PVM density and phenotype may constitute a relevant approach to prevent and/or limit the progression of vascular cognitive impairment.
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16
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Waring O, Jin H, Goossens P, Donners M, E. Biessen A. L. Dissecting The Link Between Microcalcification And Inflammation In The Vasculature. Atherosclerosis 2019. [DOI: 10.1016/j.atherosclerosis.2019.06.793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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17
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Goossens P, Lu C, van Zandvoort M, Donners M, Gijbels M, Biessen E. Spatial Mapping Of Macrophage Heterogeneity In Murine Atherosclerotic Plaques. Atherosclerosis 2019. [DOI: 10.1016/j.atherosclerosis.2019.06.147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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18
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Cao J, Goossens P, Martin-Lorenzo M, Ščupáková K, Dewez F, Biessen E, Heeren R, Balluff B. Three-Dimensional Mass Spectrometry Imaging Of Lipids In Mouse Aortic Atherosclerotic Plaque. Atherosclerosis 2019. [DOI: 10.1016/j.atherosclerosis.2019.06.085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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19
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Lu C, Goossens P, Karel J, Gijbels M, Smirnov E, Balluff B, Heeren R, Biessen E. Towards The Complete Picture: Computational Strategies To Identify Ms-Imaging Derived Molecular Fingerprints Associated With Inflammatory Cell Phenotypes. Atherosclerosis 2019. [DOI: 10.1016/j.atherosclerosis.2019.06.227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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20
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Goossens P, Rodriguez-Vita J, Etzerodt A, Masse M, Rastoin O, Gouirand V, Ulas T, Papantonopoulou O, Van Eck M, Auphan-Anezin N, Bebien M, Verthuy C, Vu Manh TP, Turner M, Dalod M, Schultze JL, Lawrence T. Membrane Cholesterol Efflux Drives Tumor-Associated Macrophage Reprogramming and Tumor Progression. Cell Metab 2019; 29:1376-1389.e4. [PMID: 30930171 DOI: 10.1016/j.cmet.2019.02.016] [Citation(s) in RCA: 235] [Impact Index Per Article: 47.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 01/01/2019] [Accepted: 02/26/2019] [Indexed: 10/27/2022]
Abstract
Macrophages possess intrinsic tumoricidal activity, yet tumor-associated macrophages (TAMs) rapidly adopt an alternative phenotype within the tumor microenvironment that is marked by tumor-promoting immunosuppressive and trophic functions. The mechanisms that promote such TAM polarization remain poorly understood, but once identified, they may represent important therapeutic targets to block the tumor-promoting functions of TAMs and restore their anti-tumor potential. Here, we have characterized TAMs in a mouse model of metastatic ovarian cancer. We show that ovarian cancer cells promote membrane-cholesterol efflux and depletion of lipid rafts from macrophages. Increased cholesterol efflux promoted IL-4-mediated reprogramming, including inhibition of IFNγ-induced gene expression. Genetic deletion of ABC transporters, which mediate cholesterol efflux, reverts the tumor-promoting functions of TAMs and reduces tumor progression. These studies reveal an unexpected role for membrane-cholesterol efflux in driving TAM-mediated tumor progression while pointing to a potentially novel anti-tumor therapeutic strategy.
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Affiliation(s)
- Pieter Goossens
- CNRS, Aix Marseille University, INSERM, CIML, Marseille 13009, France; Department of Pathology, Cardiovascular Research Institute Maastricht, Maastricht University, 6229HX Maastricht, the Netherlands
| | - Juan Rodriguez-Vita
- CNRS, Aix Marseille University, INSERM, CIML, Marseille 13009, France; Vascular Signaling and Cancer (A270), German Cancer Research Center (DKFZ), Heidelberg 69120, Germany
| | - Anders Etzerodt
- CNRS, Aix Marseille University, INSERM, CIML, Marseille 13009, France; Department of Biomedicine, Aarhus University, Aarhus 8000, Denmark
| | - Marion Masse
- CNRS, Aix Marseille University, INSERM, CIML, Marseille 13009, France
| | - Olivia Rastoin
- CNRS, Aix Marseille University, INSERM, CIML, Marseille 13009, France
| | - Victoire Gouirand
- CNRS, Aix Marseille University, INSERM, CIML, Marseille 13009, France
| | - Thomas Ulas
- Genomics & Immunoregulation, Life and Medical Sciences Institute (LIMES), University of Bonn, Bonn 53115, Germany; PRECISE Platform for Single Cell Genomics and Epigenomics, German Center for Neurodegenerative Diseases and University of Bonn, Bonn 53127, Germany
| | - Olympia Papantonopoulou
- Genomics & Immunoregulation, Life and Medical Sciences Institute (LIMES), University of Bonn, Bonn 53115, Germany
| | - Miranda Van Eck
- Division of BioTherapeutics, Leiden Academic Centre for Drug Research, Universiteit Leiden, 2300 Leiden, the Netherlands
| | | | - Magali Bebien
- CNRS, Aix Marseille University, INSERM, CIML, Marseille 13009, France
| | | | | | - Martin Turner
- Laboratory of Lymphocyte Signaling and Development, The Babraham Institute, Cambridge CB22 3AT, UK
| | - Marc Dalod
- CNRS, Aix Marseille University, INSERM, CIML, Marseille 13009, France
| | - Joachim L Schultze
- Genomics & Immunoregulation, Life and Medical Sciences Institute (LIMES), University of Bonn, Bonn 53115, Germany; PRECISE Platform for Single Cell Genomics and Epigenomics, German Center for Neurodegenerative Diseases and University of Bonn, Bonn 53127, Germany
| | - Toby Lawrence
- CNRS, Aix Marseille University, INSERM, CIML, Marseille 13009, France; Centre for Inflammation Biology and Cancer Immunology, School of Immunology & Micriboal Sciences, King's College London, London SE1 1UL, UK; Henan Key Laboratory of Immunology and Targeted Therapy, School of Laboratory Medicine, Xinxiang Medical University, Xinxiang 453003, Henan Province, China.
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21
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Goossens P, Martineau-Corcos C, Saïdi F, Martens JA, Taulelle F. Unlocking the observation of different proton populations in fluorinated polymers by solid-state 1H and 19F double resonance NMR spectroscopy. Phys Chem Chem Phys 2018; 18:28726-28731. [PMID: 27722286 DOI: 10.1039/c6cp04139f] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Nafion proton exchange membranes (PEMs) for fuel cell applications are extensively studied and commercially applied, but their unique proton conduction capabilities are still somewhat unexplained. For studying proton dynamics in situ, molecular level spectroscopic techniques have been of limited utility so far. By solid-state 1H and 19F double resonance nuclear magnetic resonance (NMR) spectroscopy using the recently revived multiple contact cross-polarization (MC-CP) pulse sequence along with double-quantum 1H-1H filtering, high resolution proton populations distinct from the dominant water resonance were observed in Nafion for the first time. This methodology quenches signal decay due to spin-lattice relaxation in the rotating frame and enables magnetization transfer between the relatively mobile 1H and 19F spin baths in Nafion. Further studies of these previously unrevealed proton populations will lead to a better understanding of the Nafion proton conduction mechanism and proton exchange processes in general.
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Affiliation(s)
- P Goossens
- Centre for Surface Chemistry and Catalysis, KU Leuven, Celestijnenlaan 200F Box 2461, B-3001 Leuven, Belgium
| | - C Martineau-Corcos
- Tectospin, Institut Lavoisier de Versailles, CNRS UMR8180, Université de Versailles Saint-Quentin en Yvelines, 45 Avenue des États-Unis, 78035 Versailles Cedex, France. and CEMHTI, CNRS UPR3079, 1D Avenue de la Recherche Scientifique, 45071 Orléans Cedex 2, France
| | - F Saïdi
- Tectospin, Institut Lavoisier de Versailles, CNRS UMR8180, Université de Versailles Saint-Quentin en Yvelines, 45 Avenue des États-Unis, 78035 Versailles Cedex, France.
| | - J A Martens
- Centre for Surface Chemistry and Catalysis, KU Leuven, Celestijnenlaan 200F Box 2461, B-3001 Leuven, Belgium
| | - F Taulelle
- Centre for Surface Chemistry and Catalysis, KU Leuven, Celestijnenlaan 200F Box 2461, B-3001 Leuven, Belgium and Tectospin, Institut Lavoisier de Versailles, CNRS UMR8180, Université de Versailles Saint-Quentin en Yvelines, 45 Avenue des États-Unis, 78035 Versailles Cedex, France.
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22
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Van Thielen B, Willekens I, Van der Schicht A, Pestieau P, Verhelle F, Goossens P, Decoster R, Jacqmot O, Delperdange P, Busoni V, De Mol G, Buls N, Provyn S, Kichouh M, de Mey J, Murray R. Radiography of the distal extremity of the manus in the donkey foal: Normal images and quantitative characterization from birth to 2 years of age: A pilot study. Anat Histol Embryol 2017; 47:71-83. [PMID: 29210097 DOI: 10.1111/ahe.12326] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2016] [Accepted: 10/24/2017] [Indexed: 11/30/2022]
Abstract
This study describes a radiographic survey of the anatomical development of the distal extremity of the manus in the donkey from 0 to 2 years of age. The right distal limb of 10 donkey foals, born in the spring of 2012, underwent radiographs every month for the first 6 months of age and every 3 months during the following 18 months. Latero-medial radiographs with and without barium marker at the coronary band and dorso-palmar radiographs with both front feet in weight bearing were obtained. The distal physis of the third metacarpal bone and the proximal physis of the proximal phalanx (phalanx proximalis) were closed at the mean age of 18.6 months. The distal physis of the proximal phalanx appeared as a clear radiolucent line at 2 weeks of age and was still subtly visible in some donkeys at 24 months. The proximal physis of the middle phalanx (phalanx media) was closed at the mean age of 16.7 months. The distal physis of this phalanx was visible at birth, but closed at 4 days. The distal phalanx (phalanx distalis) was triangular at birth. At the age of 20-21 months, the palmar processes (processus palmares) were both developed. The navicular bone (os sesamoideum distalis) was developed at the mean age of 9 months. The proximal sesamoid bones (ossa sesamoidea proximalia) were seen in continuously development during the 24 months. It seems that the physes in the distal extremity of the manus in the donkey close at an older age than the physes in the horse.
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Affiliation(s)
- B Van Thielen
- MOVE - HIM (Morpho Veterinary & Human Imaging) Brussels, University Hospital Brussels, UZ Brussel, Brussel, Belgium.,Department of Radiology, University Hospital Brussels, UZ Brussel, Brussels, Belgium.,Odisee Brussel, Educational Department for Imaging Technologists, Brussels, Belgium.,Anatomical Research, Training and Education (ARTE), Vrije Universiteit Brussel, VUB, Brussels, Belgium
| | - I Willekens
- MOVE - HIM (Morpho Veterinary & Human Imaging) Brussels, University Hospital Brussels, UZ Brussel, Brussel, Belgium.,Department of Radiology, University Hospital Brussels, UZ Brussel, Brussels, Belgium
| | - A Van der Schicht
- Odisee Brussel, Educational Department for Imaging Technologists, Brussels, Belgium.,Service d'imagerie, Faculté de Médecine Vétérinarie de l'Université de Liège, Liège (Sart Tilman), Belgium
| | - P Pestieau
- Service d'imagerie, Faculté de Médecine Vétérinarie de l'Université de Liège, Liège (Sart Tilman), Belgium.,Naturane SA, Bastogne, Belgium
| | - F Verhelle
- Department of Radiology, University Hospital Brussels, UZ Brussel, Brussels, Belgium.,Odisee Brussel, Educational Department for Imaging Technologists, Brussels, Belgium
| | - P Goossens
- Department of Radiology, University Hospital Brussels, UZ Brussel, Brussels, Belgium.,Odisee Brussel, Educational Department for Imaging Technologists, Brussels, Belgium
| | - R Decoster
- Odisee Brussel, Educational Department for Imaging Technologists, Brussels, Belgium.,Service d'imagerie, Faculté de Médecine Vétérinarie de l'Université de Liège, Liège (Sart Tilman), Belgium
| | - O Jacqmot
- MOVE - HIM (Morpho Veterinary & Human Imaging) Brussels, University Hospital Brussels, UZ Brussel, Brussel, Belgium.,Department of Radiology, University Hospital Brussels, UZ Brussel, Brussels, Belgium
| | - P Delperdange
- Naturane SA, Bastogne, Belgium.,Anatomical Research, Training and Education (ARTE), Vrije Universiteit Brussel, VUB, Brussels, Belgium
| | - V Busoni
- Service d'imagerie, Faculté de Médecine Vétérinarie de l'Université de Liège, Liège (Sart Tilman), Belgium.,Naturane SA, Bastogne, Belgium
| | - G De Mol
- Odisee Brussel, Educational Department for Imaging Technologists, Brussels, Belgium.,Service d'imagerie, Faculté de Médecine Vétérinarie de l'Université de Liège, Liège (Sart Tilman), Belgium
| | - N Buls
- Department of Radiology, University Hospital Brussels, UZ Brussel, Brussels, Belgium.,Odisee Brussel, Educational Department for Imaging Technologists, Brussels, Belgium
| | - S Provyn
- Anatomical Research, Training and Education (ARTE), Vrije Universiteit Brussel, VUB, Brussels, Belgium.,Animal Health Trust, Suffolk, UK
| | - M Kichouh
- Department of Radiology, University Hospital Brussels, UZ Brussel, Brussels, Belgium.,Odisee Brussel, Educational Department for Imaging Technologists, Brussels, Belgium
| | - J de Mey
- MOVE - HIM (Morpho Veterinary & Human Imaging) Brussels, University Hospital Brussels, UZ Brussel, Brussel, Belgium.,Department of Radiology, University Hospital Brussels, UZ Brussel, Brussels, Belgium
| | - R Murray
- Animal Health Trust, Suffolk, UK
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23
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Nagenborg J, Goossens P, Biessen EAL, Donners MMPC. Heterogeneity of atherosclerotic plaque macrophage origin, phenotype and functions: Implications for treatment. Eur J Pharmacol 2017; 816:14-24. [PMID: 28989084 DOI: 10.1016/j.ejphar.2017.10.005] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Revised: 10/02/2017] [Accepted: 10/04/2017] [Indexed: 01/01/2023]
Abstract
Macrophages are key players in atherosclerotic lesions, regulating the local inflammatory milieu and plaque stability by the secretion of many inflammatory molecules, growth factors and cytokines. Monocytes have long been considered to be the main source of plaque macrophages. However, recent findings provide evidence for proliferation of local macrophages or transdifferentiation from other vascular cells as alternative sources. Recent years of research focused on the further identification and characterisation of macrophage phenotypes and functions. In this review we describe the advances in our understanding of monocyte and macrophage heterogeneity and its implications for specific therapeutic interventions, aiming to reduce the ever growing significant risk of cardiovascular events without any detrimental side effects on the patient's immune response.
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Affiliation(s)
- Jan Nagenborg
- Department of Pathology, CARIM, Maastricht University, 6200 MD Maastricht, the Netherlands
| | - Pieter Goossens
- Department of Pathology, CARIM, Maastricht University, 6200 MD Maastricht, the Netherlands
| | - Erik A L Biessen
- Department of Pathology, CARIM, Maastricht University, 6200 MD Maastricht, the Netherlands
| | - Marjo M P C Donners
- Department of Pathology, CARIM, Maastricht University, 6200 MD Maastricht, the Netherlands.
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24
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Van Der Vorst E, Theodorou K, Wu Y, Hoeksema M, Goossens P, Bursill C, Aliyev T, Tas S, Kuijpers M, Gijbels M, Schalkwijk C, Leitges M, Lawrence T, Touqui L, Plat J, Van Eck M, Rye KA, De Winther M, Biessen E, Donners M. High density lipoproteins exert pro-inflammatory effects on macrophages via passive cholesterol depletion and PKC-NF-kB/STAT1-IRF1 signaling. Atherosclerosis 2017. [DOI: 10.1016/j.atherosclerosis.2017.06.046] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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25
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Stöger JL, Boshuizen MCS, Brufau G, Gijbels MJJ, Wolfs IMJ, van der Velden S, Pöttgens CCH, Vergouwe MN, Wijnands E, Beckers L, Goossens P, Kerksiek A, Havinga R, Müller W, Lütjohann D, Groen AK, de Winther MPJ. Deleting myeloid IL-10 receptor signalling attenuates atherosclerosis in LDLR-/- mice by altering intestinal cholesterol fluxes. Thromb Haemost 2016; 116:565-77. [PMID: 27358035 DOI: 10.1160/th16-01-0043] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Accepted: 05/25/2016] [Indexed: 12/27/2022]
Abstract
Inflammatory responses and cholesterol homeostasis are interconnected in atherogenesis. Interleukin (IL)-10 is an important anti-inflammatory cytokine, known to suppress atherosclerosis development. However, the specific cell types responsible for the atheroprotective effects of IL-10 remain to be defined and knowledge on the actions of IL-10 in cholesterol homeostasis is scarce. Here we investigated the functional involvement of myeloid IL-10-mediated atheroprotection. To do so, bone marrow from IL-10 receptor 1 (IL-10R1) wild-type and myeloid IL-10R1-deficient mice was transplanted to lethally irradiated female LDLR-/- mice. Hereafter, mice were given a high cholesterol diet for 10 weeks after which atherosclerosis development and cholesterol metabolism were investigated. In vitro, myeloid IL-10R1 deficiency resulted in a pro-inflammatory macrophage phenotype. However, in vivo significantly reduced lesion size and severity was observed. This phenotype was associated with lower myeloid cell accumulation and more apoptosis in the lesions. Additionally, a profound reduction in plasma and liver cholesterol was observed upon myeloid IL-10R1 deficiency, which was reflected in plaque lipid content. This decreased hypercholesterolaemia was associated with lowered very low-density lipoprotein (VLDL) and low-density lipoprotein (LDL) levels, likely as a response to decreased intestinal cholesterol absorption. In addition, IL-10R1 deficient mice demonstrated substantially higher faecal sterol loss caused by increased non-biliary cholesterol efflux. The induction of this process was linked to impaired ACAT2-mediated esterification of liver and plasma cholesterol. Overall, myeloid cells do not contribute to IL-10-mediated atheroprotection. In addition, this study demonstrates a novel connection between IL-10-mediated inflammation and cholesterol homeostasis in atherosclerosis. These findings make us reconsider IL-10 as a beneficial influence on atherosclerosis.
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MESH Headings
- Animals
- Apoptosis
- Atherosclerosis/etiology
- Atherosclerosis/metabolism
- Atherosclerosis/prevention & control
- Biological Transport, Active
- Cholesterol/metabolism
- Cholesterol, Dietary/administration & dosage
- Disease Models, Animal
- Female
- Hypercholesterolemia/prevention & control
- Inflammation/etiology
- Inflammation/metabolism
- Inflammation/pathology
- Intestinal Mucosa/metabolism
- Macrophages/metabolism
- Macrophages/pathology
- Mice
- Mice, Knockout
- Myeloid Cells/metabolism
- Myeloid Cells/pathology
- Plaque, Atherosclerotic/etiology
- Plaque, Atherosclerotic/metabolism
- Plaque, Atherosclerotic/pathology
- Receptors, Interleukin-10/deficiency
- Receptors, Interleukin-10/genetics
- Receptors, LDL/deficiency
- Receptors, LDL/genetics
- Signal Transduction
- Sterol O-Acyltransferase/metabolism
- Sterol O-Acyltransferase 2
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Menno P J de Winther
- Prof. M. P. J. de Winther, PhD, Experimental Vascular Biology, Medical Biochemistry, Academic Medical Center, University of Amsterdam, Meibergdreef 15, 1105 AZ Amsterdam, The Netherlands, Tel.: +31 20 5666762, E-mail:
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26
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Van Der Vorst EPC, Jin JP, Mostovyak M, Theodorou K, Hoeksema MA, Wu Y, Goossens P, Van Eck M, Rye KA, De Winther MPJ, Biessen EAL, Donners MMP, Jia JSB, Kuchmenko OB, Mkhytaryan LS, Ievstratova IN, Vasylynchuk NM, Drobotko TF. Biology of High-Density Lipoproteins: An Update49High density lipoproteins exert pro-inflammatory effects on macrophages via passive cholesterol depletion and PKC-NF-kB/STAT1-IRF1 signaling50Homocysteine accelerated the formation of THP-1 macrophages-derived foam cells and cholesterol disorder via regulating the expressions of LXRa, ABCA1 and ABCG151Protein components of HDL as markers of cardiovascular damage in patients with arterial hypertension. Cardiovasc Res 2016. [DOI: 10.1093/cvr/cvw123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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27
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Groeneveld I, Meesters J, Arwert H, Roux-Otter N, Ribbers G, Bennekom C, Goossens P, Vlieland T. Practice variation in the structure of stroke rehabilitation in four rehabilitation centres in the Netherlands. J Rehabil Med 2016; 48:287-92. [DOI: 10.2340/16501977-2054] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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28
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Van Thielen B, Pestieau P, Van Der Strieckt A, Willekens I, Busoni V, Verhelle F, Goossens P, Delperdange P, De Mol G, Jacqmot O, Buls N, Kichou M, de Mey J. Normal Radiographic Anatomy of the Donkey Foot from Birth to 2 Years of Age. Equine Vet J 2015. [DOI: 10.1111/evj.12486_29] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- B. Van Thielen
- MOVE - HIM (Morpho Veterinary & Human Imaging) Brussels; UZ Brussel
- Department of Radiology; UZ Brussel
| | - P. Pestieau
- Faculté de la Médecine Vétérinaire; Université de Liège
| | | | - I. Willekens
- MOVE - HIM (Morpho Veterinary & Human Imaging) Brussels; UZ Brussel
- Department of Radiology; UZ Brussel
| | - V. Busoni
- Faculté de la Médecine Vétérinaire; Université de Liège
| | | | | | | | | | - O. Jacqmot
- MOVE - HIM (Morpho Veterinary & Human Imaging) Brussels; UZ Brussel
- Department of Radiology; UZ Brussel
| | - N. Buls
- Department of Radiology; UZ Brussel
| | | | - J. de Mey
- MOVE - HIM (Morpho Veterinary & Human Imaging) Brussels; UZ Brussel
- Department of Radiology; UZ Brussel
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29
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Hoeksema MA, Scicluna BP, Boshuizen MCS, van der Velden S, Neele AE, Van den Bossche J, Matlung HL, van den Berg TK, Goossens P, de Winther MPJ. IFN-γ priming of macrophages represses a part of the inflammatory program and attenuates neutrophil recruitment. J Immunol 2015; 194:3909-16. [PMID: 25750432 DOI: 10.4049/jimmunol.1402077] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Received: 08/13/2014] [Accepted: 02/02/2015] [Indexed: 01/22/2023]
Abstract
Macrophages form a heterogeneous population of immune cells, which is critical for both the initiation and resolution of inflammation. They can be skewed to a proinflammatory subtype by the Th1 cytokine IFN-γ and further activated with TLR triggers, such as LPS. In this work, we investigated the effects of IFN-γ priming on LPS-induced gene expression in primary mouse macrophages. Surprisingly, we found that IFN-γ priming represses a subset of LPS-induced genes, particularly genes involved in cellular movement and leukocyte recruitment. We found STAT1-binding motifs enriched in the promoters of these repressed genes. Furthermore, in the absence of STAT1, affected genes are derepressed. We also observed epigenetic remodeling by IFN-γ priming on enhancer or promoter sites of repressed genes, which resulted in less NF-κB p65 recruitment to these sites without effects on global NF-κB activation. Finally, the epigenetic and transcriptional changes induced by IFN-γ priming reduce neutrophil recruitment in vitro and in vivo. Our data show that IFN-γ priming changes the inflammatory repertoire of macrophages, leading to a change in neutrophil recruitment to inflammatory sites.
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Affiliation(s)
- Marten A Hoeksema
- Experimental Vascular Biology Laboratory, Department of Medical Biochemistry, Academic Medical Center, University of Amsterdam, 1105 AZ Amsterdam, the Netherlands
| | - Brendon P Scicluna
- Center for Experimental Molecular Medicine, Academic Medical Center, University of Amsterdam, 1105 AZ Amsterdam, the Netherlands; Center for Infection and Immunity, Academic Medical Center, University of Amsterdam, 1105 AZ Amsterdam, the Netherlands
| | - Marieke C S Boshuizen
- Experimental Vascular Biology Laboratory, Department of Medical Biochemistry, Academic Medical Center, University of Amsterdam, 1105 AZ Amsterdam, the Netherlands
| | - Saskia van der Velden
- Experimental Vascular Biology Laboratory, Department of Medical Biochemistry, Academic Medical Center, University of Amsterdam, 1105 AZ Amsterdam, the Netherlands
| | - Annette E Neele
- Experimental Vascular Biology Laboratory, Department of Medical Biochemistry, Academic Medical Center, University of Amsterdam, 1105 AZ Amsterdam, the Netherlands
| | - Jan Van den Bossche
- Experimental Vascular Biology Laboratory, Department of Medical Biochemistry, Academic Medical Center, University of Amsterdam, 1105 AZ Amsterdam, the Netherlands
| | - Hanke L Matlung
- Sanquin Research and Landsteiner Laboratory, Department of Blood Cell Research, Academic Medical Center, University of Amsterdam, 1105 AZ Amsterdam, the Netherlands; and
| | - Timo K van den Berg
- Sanquin Research and Landsteiner Laboratory, Department of Blood Cell Research, Academic Medical Center, University of Amsterdam, 1105 AZ Amsterdam, the Netherlands; and
| | - Pieter Goossens
- Centre d'Immunologie de Marseille-Luminy, Aix-Marseille Université, UM2, 13288 Marseille, France
| | - Menno P J de Winther
- Experimental Vascular Biology Laboratory, Department of Medical Biochemistry, Academic Medical Center, University of Amsterdam, 1105 AZ Amsterdam, the Netherlands;
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30
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Wolfs IMJ, Stöger JL, Goossens P, Pöttgens C, Gijbels MJJ, Wijnands E, Vorst EPC, Gorp P, Beckers L, Engel D, Biessen EAL, Kraal G, Die I, Donners MMPC, Winther MPJ. Reprogramming macrophages to an anti‐inflammatory phenotype by helminth antigens reduces murine atherosclerosis. FASEB J 2013; 28:288-99. [DOI: 10.1096/fj.13-235911] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Ine M. J. Wolfs
- Department of Molecular GeneticsMaastricht UniversityMaastrichtThe Netherlands
- Department of PathologyMaastricht UniversityMaastrichtThe Netherlands
| | - J. Lauran Stöger
- Department of Molecular GeneticsMaastricht UniversityMaastrichtThe Netherlands
- Department of Medical BiochemistryAcademic Medical Center (AMC)University of AmsterdamAmsterdamThe Netherlands
| | - Pieter Goossens
- Department of Molecular GeneticsMaastricht UniversityMaastrichtThe Netherlands
- Centre d'Immunologie de Marseille‐Luminy (CIML)Aix‐Marseille UniversityMarseilleFrance
| | - Chantal Pöttgens
- Department of Molecular GeneticsMaastricht UniversityMaastrichtThe Netherlands
- Department of PhysiologyCardiovascular Research Institute Maastricht (CARIM)Maastricht UniversityMaastrichtThe Netherlands
| | - Marion J. J. Gijbels
- Department of Molecular GeneticsMaastricht UniversityMaastrichtThe Netherlands
- Department of PathologyMaastricht UniversityMaastrichtThe Netherlands
- Department of Medical BiochemistryAcademic Medical Center (AMC)University of AmsterdamAmsterdamThe Netherlands
| | - Erwin Wijnands
- Department of PathologyMaastricht UniversityMaastrichtThe Netherlands
| | - Emiel P. C. Vorst
- Department of Molecular GeneticsMaastricht UniversityMaastrichtThe Netherlands
| | - Patrick Gorp
- Department of Molecular GeneticsMaastricht UniversityMaastrichtThe Netherlands
| | - Linda Beckers
- Department of PathologyMaastricht UniversityMaastrichtThe Netherlands
- Department of Medical BiochemistryAcademic Medical Center (AMC)University of AmsterdamAmsterdamThe Netherlands
| | - David Engel
- Department of PathologyMaastricht UniversityMaastrichtThe Netherlands
| | | | - Georg Kraal
- Department of Molecular Cell Biology and ImmunologyVrije Universiteit (VU) Medical Center AmsterdamAmsterdamThe Netherlands
| | - Irma Die
- Department of Molecular Cell Biology and ImmunologyVrije Universiteit (VU) Medical Center AmsterdamAmsterdamThe Netherlands
| | - Marjo M. P. C. Donners
- Department of Molecular GeneticsMaastricht UniversityMaastrichtThe Netherlands
- Department of PathologyMaastricht UniversityMaastrichtThe Netherlands
| | - Menno P. J. Winther
- Department of Molecular GeneticsMaastricht UniversityMaastrichtThe Netherlands
- Department of Medical BiochemistryAcademic Medical Center (AMC)University of AmsterdamAmsterdamThe Netherlands
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31
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Wolfs IM, Goossens P, Stöger JL, Pöttgens C, Gijbels M, Wijnands E, van Die I, Kraal G, J de Winther MP. Abstract 51: Parasitic Soluble Egg Antigens Fight Atherosclerosis from 2 Different Angles. Arterioscler Thromb Vasc Biol 2012. [DOI: 10.1161/atvb.32.suppl_1.a51] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
With intra-plaque inflammation being a major hallmark of atherosclerotic lesion growth and instability, modulation of the immune system may yield therapeutic potential in combating atherosclerosis. Helminths and their derivatives have immune modulating properties and are known for their anti-inflammatory effects. We investigated if immune modulation by Soluble Egg Antigens (SEA) derived from the helminth
Schistosoma Mansoni
can affect macrophage function and protect against atherosclerosis.
In vitro
, primary macrophages skewed by SEA showed an anti-inflammatory M2 phenotype. SEA induced the production of IL-10, an anti-inflammatory cytokine with known anti-atherogenic capacities, while inhibiting LPS-induced production of pro-inflammatory mediators. Likewise, peritoneal macrophages isolated from SEA-treated mice showed increased IL-10 production, thereby confirming the M2 macrophage-inducing potential of SEA
in vivo
. Additionally, T-lymphocytes showed a profound T
H
2 polarization after SEA treatment
in vivo
.
To study the effect of SEA treatment on atherosclerosis, LDLR
-/-
mice (n=20) were weekly injected with SEA or vehicle before and during 9 weeks of high fat feeding. Examination of the aortic root showed a 44% decrease in plaque size by SEA treatment (386.2x10
3
μm
2
± 159.3 vs. 214.3x10
3
μm
2
± 58.7, p<0.0001) along with less advanced lesions compared to controls. Furthermore, pathological assessment revealed smaller necrotic cores and less monocyte adhesion in lesions from SEA-treated mice. Besides an additional lowering of plasma cholesterol (45.17 mM ± 6.1 vs. 36.99 mM ± 4.28, p<0.0001), SEA reduced high fat diet-induced leukocytosis (9900.6 cells/μl μm
2
± 2503.6 vs. 7535.11x10
3
μm
2
± 1892.1, p<0.05), in particular at the myeloid level. Interestingly, both blood monocytes and isolated peritoneal macrophages pointed towards an anti-inflammatory phenotype by SEA, characterized by less Ly6C
high
cells and increased IL-10 production respectively. Finally, peritoneal macrophages from SEA-treated mice showed less lipid accumulation
.
In conclusion, SEA have the potential to reduce atherosclerosis from 2 perspectives: lowering plasma cholesterol levels and dampening the inflammatory (myeloid) immune status.
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Affiliation(s)
- Ine M Wolfs
- Molecular genetics, Cardiovascular Rsch Institute Maastricht, Maastricht, Netherlands
| | - P Goossens
- Molecular genetics, Cardiovascular Rsch Institute Maastricht, Maastricht, Netherlands
| | - J L Stöger
- Molecular genetics, Cardiovascular Rsch Institute Maastricht, Maastricht, Netherlands
| | - C Pöttgens
- Molecular genetics, Cardiovascular Rsch Institute Maastricht, Maastricht, Netherlands
| | - M Gijbels
- Molecular genetics, Pathology, Cardiovascular Rsch Institute Maastricht, Maastricht, Netherlands
| | - E Wijnands
- Pathology, Cardiovascular Rsch Institute Maastricht, Maastricht, Netherlands
| | - I van Die
- Molecular Cell Biology & Immunology, VU, Univ Med Cntr, Amsterdam, Netherlands
| | - G Kraal
- Molecular Cell Biology & Immunology, VU, Univ Med Cntr, Amsterdam, Netherlands
| | - M P J de Winther
- Molecular genetics, Cardiovascular Rsch Institute Maastricht, Maastricht, Netherlands
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32
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Goossens P, Vergouwe MN, Gijbels MJJ, Curfs DMJ, van Woezik JHG, Hoeksema MA, Xanthoulea S, Leenen PJM, Rupec RA, Hofker MH, de Winther MPJ. Myeloid IκBα deficiency promotes atherogenesis by enhancing leukocyte recruitment to the plaques. PLoS One 2011; 6:e22327. [PMID: 21814576 PMCID: PMC3141029 DOI: 10.1371/journal.pone.0022327] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2011] [Accepted: 06/26/2011] [Indexed: 01/15/2023] Open
Abstract
Activation of the transcription factor NF-κB appears to be involved in different stages of atherogenesis. In this paper we investigate the role of NF-κB inhibitor IκBα in atherosclerosis. Myeloid-specific deletion of IκBα results in larger and more advanced lesions in LDL-R-deficient mice without affecting the compositional phenotype of the plaques or systemic inflammatory markers in the plasma. We show that IκBα-deleted macrophages display enhanced adhesion to an in vitro endothelial cell layer, coinciding with an increased expression of the chemokine CCL5. Also, in vivo we found that IκBαdel mice had more leukocytes adhering to the luminal side of the endothelial cell layers that cover the atherosclerotic plaques. Moreover, we introduce ER-MP58 in this paper as a new immunohistochemical tool for quantifying newly recruited myeloid cells in the atherosclerotic lesion. This staining confirms that in IκBαdel mice more leukocytes are attracted to the plaques. In conclusion, we show that IκBα deletion in myeloid cells promotes atherogenesis, probably through an induced leukocyte recruitment to plaques.
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Affiliation(s)
- Pieter Goossens
- Department of Molecular Genetics, Cardiovascular Research Institute Maastricht, Maastricht University, Maastricht, The Netherlands
| | - Monique N. Vergouwe
- Department of Molecular Genetics, Cardiovascular Research Institute Maastricht, Maastricht University, Maastricht, The Netherlands
| | - Marion J. J. Gijbels
- Department of Molecular Genetics, Cardiovascular Research Institute Maastricht, Maastricht University, Maastricht, The Netherlands
- Department of Pathology, Cardiovascular Research Institute Maastricht, Maastricht University, Maastricht, The Netherlands
| | - Danielle M. J. Curfs
- Department of Molecular Genetics, Cardiovascular Research Institute Maastricht, Maastricht University, Maastricht, The Netherlands
| | - Johannes H. G. van Woezik
- Department of Molecular Genetics, Cardiovascular Research Institute Maastricht, Maastricht University, Maastricht, The Netherlands
| | - Marten A. Hoeksema
- Department of Molecular Genetics, Cardiovascular Research Institute Maastricht, Maastricht University, Maastricht, The Netherlands
| | - Sofia Xanthoulea
- Department of Molecular Genetics, Cardiovascular Research Institute Maastricht, Maastricht University, Maastricht, The Netherlands
| | - Pieter J. M. Leenen
- Department of Immunology, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Rudolf A. Rupec
- Department of Dermatology, Ludwig-Maximilian-University, Munich, Germany
| | - Marten H. Hofker
- Department of Pathology and Medical Biology, Medical Biology Section, Molecular Genetics, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Menno P. J. de Winther
- Department of Molecular Genetics, Cardiovascular Research Institute Maastricht, Maastricht University, Maastricht, The Netherlands
- * E-mail:
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33
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Lievens D, Zernecke A, Seijkens T, Soehnlein O, Beckers L, Munnix ICA, Wijnands E, Goossens P, van Kruchten R, Thevissen L, Boon L, Flavell RA, Noelle RJ, Gerdes N, Biessen EA, Daemen MJAP, Heemskerk JWM, Weber C, Lutgens E. Platelet CD40L mediates thrombotic and inflammatory processes in atherosclerosis. Blood 2010. [PMID: 20705757 DOI: 10.1182/blood-2010-01] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/23/2023] Open
Abstract
CD40 ligand (CD40L), identified as a costimulatory molecule expressed on T cells, is also expressed and functional on platelets. We investigated the thrombotic and inflammatory contributions of platelet CD40L in atherosclerosis. Although CD40L-deficient (Cd40l(-/-)) platelets exhibited impaired platelet aggregation and thrombus stability, the effects of platelet CD40L on inflammatory processes in atherosclerosis were more remarkable. Repeated injections of activated Cd40l(-/-) platelets into Apoe(-/-) mice strongly decreased both platelet and leukocyte adhesion to the endothelium and decreased plasma CCL2 levels compared with wild-type platelets. Moreover, Cd40l(-/-) platelets failed to form proinflammatory platelet-leukocyte aggregates. Expression of CD40L on platelets was required for platelet-induced atherosclerosis as injection of Cd40l(-/-) platelets in contrast to Cd40l(+/+) platelets did not promote lesion formation. Remarkably, injection of Cd40l(+/+), but not Cd40l(-/-), platelets transiently decreased the amount of regulatory T cells (Tregs) in blood and spleen. Depletion of Tregs in mice injected with activated Cd40l(-/-) platelets abrogated the athero-protective effect, indicating that CD40L on platelets mediates the reduction of Tregs leading to accelerated atherosclerosis. We conclude that platelet CD40L plays a pivotal role in atherosclerosis, not only by affecting platelet-platelet interactions but especially by activating leukocytes, thereby increasing platelet-leukocyte and leukocyte-endothelium interactions.
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Affiliation(s)
- Dirk Lievens
- Department of Pathology, Maastricht Center for Atherosclerosis Research, Cardiovascular Research Institute Maastricht, Maastricht University, Maastricht, The Netherlands
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34
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Goossens P, Gijbels MJJ, Zernecke A, Eijgelaar W, Vergouwe MN, van der Made I, Vanderlocht J, Beckers L, Buurman WA, Daemen MJAP, Kalinke U, Weber C, Lutgens E, de Winther MPJ. Myeloid type I interferon signaling promotes atherosclerosis by stimulating macrophage recruitment to lesions. Cell Metab 2010; 12:142-53. [PMID: 20674859 DOI: 10.1016/j.cmet.2010.06.008] [Citation(s) in RCA: 171] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2009] [Revised: 01/05/2010] [Accepted: 06/02/2010] [Indexed: 12/23/2022]
Abstract
Inflammatory cytokines are well-recognized mediators of atherosclerosis. Depending on the pathological context, type I interferons (IFNs; IFNalpha and IFNbeta) exert either pro- or anti-inflammatory immune functions, but their exact role in atherogenesis has not been clarified. Here, we demonstrate that IFNbeta enhances macrophage-endothelial cell adhesion and promotes leukocyte attraction to atherosclerosis-prone sites in mice in a chemokine-dependent manner. Moreover, IFNbeta treatment accelerates lesion formation in two different mouse models of atherosclerosis and increases macrophage accumulation in the plaques. Concomitantly, absence of endogenous type I IFN signaling in myeloid cells inhibits lesion development, protects against lesional accumulation of macrophages, and prevents necrotic core formation. Finally, we show that type I IFN signaling is upregulated in ruptured human atherosclerotic plaques. Hereby, we identify type I IFNs as proatherosclerotic cytokines that may serve as additional targets for prevention or treatment.
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Affiliation(s)
- Pieter Goossens
- Department of Molecular Genetics, Cardiovascular Research Institute Maastricht, Maastricht University, 6200 MD Maastricht, The Netherlands
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
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35
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Stoger J, Goossens P, de Winther M. Macrophage Heterogeneity: Relevance and Functional Implications in Atherosclerosis. Curr Vasc Pharmacol 2010; 8:233-48. [DOI: 10.2174/157016110790886983] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2009] [Accepted: 09/05/2009] [Indexed: 11/22/2022]
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36
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Raymond B, Leduc D, Le Goffic R, Ravaux L, Candela T, Goossens P, Touqui L. 070 Effect of Bacillus anthracis edema toxin on sPLA2-IIA expression by alveolar macrophages. Rev Mal Respir 2007. [DOI: 10.1016/s0761-8425(07)74361-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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37
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Jaskólska A, Goossens P, Veenstra B, Jaskólski A, Skinner J. Comparison of Treadmill and Cycle Ergometer Measurements of Force-Velocity Relationships and Power Output. Int J Sports Med 2007. [DOI: 10.1055/s-1999-970288] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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38
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Raymond B, Leduc D, Le Goffic R, Goossens P, Touqui L. 087 Effect of Bacillus anthracis edema toxin on sPLA2-IIA expression by alveolar macrophages. Rev Mal Respir 2006. [DOI: 10.1016/s0761-8425(06)71915-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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39
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Jaskólska A, Goossens P, Veenstra B, Jaskólski A, Skinner JS. Comparison of treadmill and cycle ergometer measurements of force-velocity relationships and power output. Int J Sports Med 1999; 20:192-7. [PMID: 10333097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Abstract
Since body balance and weight-bearing factors present while running on the treadmill might cause additional muscle recruitment and thus could influence the force-velocity relationship and power, the present study was undertaken to find out whether the F-V and F-P relationships measured while running on the treadmill are different from the respective indices measured during cycling. On two separate occasions, 32 male subjects were tested using a series of 5 sec, all-out sprints against different braking forces on the Gymrol Sprint treadmill and on the Monark ergometer. The maximal peak power (PPmax) and maximal mean power (MPmax) were measured. The equation: EP = 0.5 maximal force (Fo) x0.5 maximal velocity (Vo) was used to calculate the estimated values of peak power (EPP) and mean power (EMP). The F-V relationship was linear in both cycle ergometer and treadmill measurements. PPmax, MPmax, EPP, and EMP values on the treadmill were lower than the respective values on the ergometer. EPP on the ergometer and on the treadmill, as well as EMP values on the ergometer, were slightly higher than the corresponding measured values of PPmax and MPmax. The levels of braking force at which PP, MP, PPmax, and MPmax were obtained were lower on the ergometer than on the treadmill. High correlation coefficients were found between PPmax, MPmax, EPP, and EMP measured on the ergometer and on the treadmill (r = 0.86, r = 0.84, r = 0.71, r = 0.78, respectively, P<0.01). In both tests, significant relationships between PPmax, MPmax, EPP, and EMP were observed. It is concluded that independent of the type of ergometry the force-velocity relationship is similar in the measured range of velocities which suggests that the number of muscle groups and joints engaged in movement are more important than body balance and weight-bearing factors present while running on a treadmill.
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40
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Jaskólska A, Goossens P, Veenstra B, Jaskólskp A, Skinner J. Treadmill measurement of the force‐velocity relationship and power output in subjects with different maximal running velocities. ACTA ACUST UNITED AC 1998. [DOI: 10.1080/15438629909512537] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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41
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Ponnet G, Goossens P, Oost C. [A comparative study between 3 venous access systems with various types of catheters]. Oncologica 1997; 14:18-21. [PMID: 9418522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- G Ponnet
- Academisch Ziekenhuis Vrije Universiteit Brussel, Jette
| | | | | |
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42
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Jaskólski A, Veenstra B, Goossens P, Jaskólska A, Skinner J. Optimal resistance for maximal power during treadmill running*. ACTA ACUST UNITED AC 1996. [DOI: 10.1080/15438629609512067] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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43
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Belkaid Y, Bouckson V, Colle JH, Goossens P, Lebastard M, Leclercq V, Marchal G, Montixi C, Milon G. Transient inducible events in different tissues: in situ studies in the context of the development and expression of the immune responses to intracellular pathogens. Immunobiology 1994; 191:413-23. [PMID: 7713555 DOI: 10.1016/s0171-2985(11)80447-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Intracellular pathogens whether facultative like Mycobacterium sp., e.g. Bacillus Calmette Guérin, Listeria monocytogenes or strictly intracellular like Leishmania sp. initiate either asymptomatic infectious processes or disease depending both on factors of the host (genetic as well as environmental ones) and the infectious/pathogenic agents. In this contribution, we first summarized informations which justify to develop in situ analysis to decipher the sequential events that result in different modes/classes of immune responses. How the mode of the immune response is determined remains a main question to address. Although it has recently become clear, in vitro, that immunocompetent cells and their cytokines are critical to set on a stable mode of immune response, acting on naive T cells, this area deserves more in vivo studies. Indeed, peripheral T cells, at different stages of differentiation, may exist in vivo (a) naive/virgin, (b) experienced, (c) effector T cells, depending on the level of stimulation of the immune system by either endogenous or exogenous (e.g. gut flora) signals. The three chosen examples illustrate our contributions in this field focusing on three different non-lymphoid tissues which may become infected: bone marrow (Bacille de Calmette Guérin), liver (Listeria monocytogenes), skin (Leishmania major). These three illustrations also allow to attract attention on the interest of using mice of genetically different strains the immune response of which is set up under different modes.
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Affiliation(s)
- Y Belkaid
- Unité d'Immunophysiologie cellulaire, Institut Pasteur, Paris, France
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44
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Maes M, Scharpé S, De Meester I, Goossens P, Wauters A, Neels H, Verkerk R, De Meyer F, D'Hondt P, Peeters D. Components of biological variation in prolyl endopeptidase and dipeptidyl-peptidase IV activity in plasma of healthy subjects. Clin Chem 1994; 40:1686-91. [PMID: 7915215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
We investigated the components of biological variation in plasma prolyl endopeptidase (PEP; EC 3.4.21.26) and dipeptidyl-peptidase IV (DPP IV; EC 3.4..14.5) activity in healthy individuals. We took monthly blood samples from 26 healthy volunteers for determination of plasma PEP and DPP IV activity during one calendar year. The estimated CVs for PEP activity were: total (CVt) = 25.0%, interindividual (CVg) = 13.9%, and intraindividual (CVi) = 16.8%. There was a statistically significant (P < 0.0001) seasonal pattern in plasma PEP activity, with significantly higher values in the fall than in the other seasons. The peak-trough difference in the yearly variation in PEP activity, expressed as a percentage of the mean, was as high as 56.8%. The estimated CVs for DPP IV activity were: CVt = 17.1%, CVg = 14.5%, and CVi = 8.2%. DPP IV activity was significantly (P < 0.0001) higher in summer than in the other seasons but the amplitude of the yearly variation was small.
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Affiliation(s)
- M Maes
- Department of Psychiatry, Case Western Reserve University, Cleveland, OH 44106
| | | | | | | | | | | | | | | | | | | |
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45
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Maes M, Scharpé S, De Meester I, Goossens P, Wauters A, Neels H, Verkerk R, De Meyer F, D'Hondt P, Peeters D. Components of biological variation in prolyl endopeptidase and dipeptidyl-peptidase IV activity in plasma of healthy subjects. Clin Chem 1994. [DOI: 10.1093/clinchem/40.9.1686] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
We investigated the components of biological variation in plasma prolyl endopeptidase (PEP; EC 3.4.21.26) and dipeptidyl-peptidase IV (DPP IV; EC 3.4..14.5) activity in healthy individuals. We took monthly blood samples from 26 healthy volunteers for determination of plasma PEP and DPP IV activity during one calendar year. The estimated CVs for PEP activity were: total (CVt) = 25.0%, interindividual (CVg) = 13.9%, and intraindividual (CVi) = 16.8%. There was a statistically significant (P < 0.0001) seasonal pattern in plasma PEP activity, with significantly higher values in the fall than in the other seasons. The peak-trough difference in the yearly variation in PEP activity, expressed as a percentage of the mean, was as high as 56.8%. The estimated CVs for DPP IV activity were: CVt = 17.1%, CVg = 14.5%, and CVi = 8.2%. DPP IV activity was significantly (P < 0.0001) higher in summer than in the other seasons but the amplitude of the yearly variation was small.
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Affiliation(s)
- M Maes
- Department of Psychiatry, Case Western Reserve University, Cleveland, OH 44106
| | - S Scharpé
- Department of Psychiatry, Case Western Reserve University, Cleveland, OH 44106
| | - I De Meester
- Department of Psychiatry, Case Western Reserve University, Cleveland, OH 44106
| | - P Goossens
- Department of Psychiatry, Case Western Reserve University, Cleveland, OH 44106
| | - A Wauters
- Department of Psychiatry, Case Western Reserve University, Cleveland, OH 44106
| | - H Neels
- Department of Psychiatry, Case Western Reserve University, Cleveland, OH 44106
| | - R Verkerk
- Department of Psychiatry, Case Western Reserve University, Cleveland, OH 44106
| | - F De Meyer
- Department of Psychiatry, Case Western Reserve University, Cleveland, OH 44106
| | - P D'Hondt
- Department of Psychiatry, Case Western Reserve University, Cleveland, OH 44106
| | - D Peeters
- Department of Psychiatry, Case Western Reserve University, Cleveland, OH 44106
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46
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Faure P, Marussig M, Goossens P, Miltgen F, Mazier D. Characterization of liver lymphomyeloid cells in mice infected with Plasmodium yoelii sporozoites. Immunology 1994; 82:645-50. [PMID: 7835930 PMCID: PMC1414910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
We have isolated, characterized and quantified the immunocompetent cells present in the extravascular hepatic compartment at various stages after Plasmodium yoelii malaria infection with sporozoites. Cytological analyses revealed a predominantly lymphoid population. In mice with a primary infection, the predominant cells were CD4+, CD8+ and B lymphocytes. In fully protected mice, CD3+ CD4- CD8- and polymorphonuclear cells, particularly eosinophils, were most common. The significance of changes in subpopulations is discussed in relation to antigen presentation and host-protective mechanisms.
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Affiliation(s)
- P Faure
- Institut National de la Santé et de la Recherche Médicale, Département de Parasitologie, Groupe Pitié-Salpêtrière, Paris, France
| | | | | | | | | |
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47
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Milon G, Goossens P, Roberts M, Jouin H, Marchal G, Blackwell J. One approach to assess the liver responses in murine listeriosis and visceral leishmaniasis. Mem Inst Oswaldo Cruz 1988; 83 Suppl 1:414-7. [PMID: 3253505 DOI: 10.1590/s0074-02761988000500036] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Affiliation(s)
- G Milon
- Institut Pasteur, Paris, France
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48
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Goossens P, Viret J, Leterrier F. Rat brain acetylcholinesterase turnover in vivo: use of a radioactive methylphosphonothiate irreversible inhibitor. Biochem Biophys Res Commun 1984; 123:71-7. [PMID: 6477588 DOI: 10.1016/0006-291x(84)90381-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
A new organophosphorus compound was used in its non radioactive and tritiated forms in order to study rat brain acetylcholinesterase. We measured the activity recovery of the total enzyme and of its two main molecular forms (4 S and 10 S) as a function of time following the inhibition. The radioactive compound allowed us to study the disappearance of the inhibitor irreversibly bound to the enzyme in the main cholinergic areas. Both approaches gave similar results: acetylcholinesterase turn-over proceeds in two steps, a rapid one of about 30 mn and a slow one of about 2 days. Our results suggest an in vivo reactivation process concerning a fraction of the bound inhibitor.
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Tobian L, Lange J, Iwai J, Hiller K, Johnson MA, Goossens P. Prevention with thiazide of NaCl-induced hypertension in Dahl "S" rats. Evidence for a Na-retaining humoral agent in "S" rats. Hypertension 1979; 1:316-23. [PMID: 551079 DOI: 10.1161/01.hyp.1.3.316] [Citation(s) in RCA: 54] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Ikeda T, Tobian L, Iwai J, Goossens P. Central nervous system pressor responses in rats susceptible and resistant to sodium chloride hypertension. Clin Sci Mol Med Suppl 1978; 4:225s-227s. [PMID: 282056 DOI: 10.1042/cs055225s] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
1. The pressor responses to hypertonic saline and angiotensin II introduced into the left lateral ventricle were both significantly greater in salt-sensitive (S) rats compared with salt-resistant (R) rats, with all rats on a low Na diet. 2. When S rats were given thiazide to nullify the pressor effect of dietary NaCl, their blood pressure averaged only 5 mmHg higher than that of the R rats; nevertheless, these S rats had significantly higher central nervous system pressor responses to angiotensin II and hypertonic saline. 3. Thus, if excessive dietary Na increases blood pressure by way of action on the central nervous system, these heightened pressor responses could partially account for the NaCl hypertension in S rats. Alternatively, depressed central nervous system pressor responses in R rats could partially explain the resistance of R rats to NaCl hypertension.
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