0000000000175301

AUTHOR

Nicolas Ogier

showing 3 related works from this author

Liver X Receptor–Mediated Induction of Cholesteryl Ester Transfer Protein Expression Is Selectively Impaired in Inflammatory Macrophages

2009

Objective— Cholesteryl ester transfer protein (CETP) is a target gene for the liver X receptor (LXR). The aim of this study was to further explore this regulation in the monocyte-macrophage lineage and its modulation by lipid loading and inflammation, which are key steps in the process of atherogenesis. Methods and Results— Exposure of bone marrow–derived macrophages from human CETP transgenic mice to the T0901317 LXR agonist increased CETP, PLTP, and ABCA1 mRNA levels. T0901317 also markedly increased CETP mRNA levels and CETP production in human differentiated macrophages, whereas it had no effect on CETP expression in human peripheral blood monocytes. In inflammatory mouse and human mac…

030204 cardiovascular system & hematologyMonocytesMice0302 clinical medicinepolycyclic compoundsPhospholipid Transfer ProteinsCells CulturedLiver X Receptors0303 health sciencesCell DifferentiationOrphan Nuclear ReceptorsUp-RegulationLipoproteins LDLmedicine.anatomical_structureABCG1Models Animalmonocytelipids (amino acids peptides and proteins)medicine.symptomCardiology and Cardiovascular MedicineOxidation-ReductionAgonistmedicine.medical_specialtymedicine.drug_classBlotting Westerncholesteryl ester transfer proteinMice TransgenicInflammationmacrophageBiology03 medical and health sciencesDownregulation and upregulationInternal medicineCholesterylester transfer proteinmedicineAnimalsHumans[SDV.BBM]Life Sciences [q-bio]/Biochemistry Molecular BiologyRNA MessengerLiver X receptorLiver X receptorProbability030304 developmental biologyMacrophagesMonocyteAtherosclerosisCholesterol Ester Transfer Proteinscarbohydrates (lipids)EndocrinologyGene Expression RegulationinflammationABCA1Immunologybiology.protein[SDV.AEN]Life Sciences [q-bio]/Food and NutritionArteriosclerosis, Thrombosis, and Vascular Biology
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Plasma phospholipid transfer protein (PLTP) modulates adaptive immune functions through alternation of T helper cell polarization

2016

International audience; Objective: Plasma phospholipid transfer protein (PLTP) is a key determinant of lipoprotein metabolism, and both animal and human studies converge to indicate that PLTP promotes atherogenesis and its thromboembolic complications. Moreover, it has recently been reported that PLTP modulates inflammation and immune responses. Although earlier studies from our group demonstrated that PLTP can modify macrophage activation, the implication of PLTP in the modulation of T-cell-mediated immune responses has never been investigated and was therefore addressed in the present study. Approach and results: In the present study, we demonstrated that PLTP deficiency in mice has a pro…

0301 basic medicineLymphocyteIpid Transfer ProteinAdaptive ImmunityCardiovascular-DiseaseT-Lymphocytes RegulatoryLipoprotein MetabolismLeukocyte CountPhospholipid transfer proteinPolarizationImmunology and Allergy[ SDV.IMM ] Life Sciences [q-bio]/ImmunologyHypersensitivity DelayedPhospholipid Transfer ProteinsCell PolarityCell DifferentiationT-Lymphocytes Helper-InducerT helper cellFlow CytometryAcquired immune systemCell biologyInfectious Diseasesmedicine.anatomical_structureEndothelial-CellsCytokines[SDV.IMM]Life Sciences [q-bio]/ImmunologyLymphocytemedicine.symptomResearch ArticleDensity-Lipoprotein[SDV.IMM] Life Sciences [q-bio]/ImmunologyHuman Atherosclerotic PlaquesT cellCirculating Interleukin-18ImmunologyT CellAntigen-Presenting CellsInflammationAcute Myocardial-InfarctionGATA3 Transcription FactorBiology03 medical and health sciencesImmune systemmedicineAnimalsAntigen-presenting cellDeficient MiceAlpha-TocopherolMice Inbred C57BL030104 developmental biologyImmunologyVitamin-ET-Box Domain ProteinsBiomarkersSpleen
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Cholesterol accumulation is increased in macrophages of phospholipid transfer protein-deficient mice: normalization by dietary alpha-tocopherol suppl…

2007

Objective— Phospholipid transfer protein (PLTP) is a multifunctional, extracellular lipid transport protein that plays a major role in lipoprotein metabolism and atherosclerosis. Recent in vivo studies suggested that unlike systemic PLTP, macrophage-derived PLTP would be antiatherogenic. The present study aimed at characterizing the atheroprotective properties of macrophage-derived PLTP. Methods and Results— Peritoneal macrophages were isolated from PLTP-deficient and wild-type mice and their biochemical characteristics were compared. It is shown that macrophages isolated from PLTP-deficient mice have increased basal cholesterol content and accumulate more cholesterol in the presence of LD…

medicine.medical_specialtymedicine.medical_treatmentalpha-TocopherolOxidative phosphorylationBiologychemistry.chemical_compoundMiceIn vivoPhospholipid transfer proteinInternal medicineMalondialdehydeExtracellularmedicineAnimalsTocopherolPhospholipid Transfer ProteinsMice KnockoutCholesterolVitamin EVitaminsLipoproteins LDLEndocrinologyCholesterolchemistryBiochemistryDietary SupplementsMacrophages Peritoneallipids (amino acids peptides and proteins)Cardiology and Cardiovascular Medicinealpha-TocopherolArteriosclerosis, thrombosis, and vascular biology
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