0000000001151192

AUTHOR

P. Gambert

showing 2 related works from this author

FRET multiphoton spectral imaging microscopy of 7-ketocholesterol and Nile Red in U937 monocytic cells loaded with 7-ketocholesterol.

2004

To show the effect of 7-ketocholesterol (7KC) on cellular lipid content by means of flow cytometry and the interaction of 7KC with Nile Red (NR) via ultraviolet fluorescence resonance energy transfer (FRET) excitation of NR on U937 monocytic cells by means of 2-photon excitation confocal laser scanning microscopy (CLSM).Untreated and 7KC-treated U937 cells were stained with NR and analyzed by flow cytometry and CLSM. 3D sequences of images were obtained by spectral analysis in a 2-photon excitation CLSM and analyzed by the factor analysis of medical image sequences (FAMIS) algorithm, which provides factor curves and images. Factor images are the result of the FAMIS image processing method, …

MESH: Cell DeathMESH: Fluorescence Resonance Energy TransferMESH: Mitochondria[SDV.IB.IMA]Life Sciences [q-bio]/Bioengineering/ImagingMESH : Flow CytometryMESH: Flow CytometryMESH: U937 CellsMESH: MonocytesMonocytesMembrane PotentialsMESH : Staining and LabelingMESH : Microscopy Fluorescence MultiphotonOxazinesFluorescence Resonance Energy TransferImage Processing Computer-AssistedHumansMESH: Membrane PotentialsMESH: Microscopy ConfocalMESH : Membrane PotentialsMESH : Fluorescent DyesMESH : Microscopy ConfocalKetocholesterols[ SDV.IB.IMA ] Life Sciences [q-bio]/Bioengineering/ImagingFluorescent DyesMESH : KetocholesterolsMicroscopy ConfocalMESH: HumansMESH : OxazinesCell DeathStaining and LabelingMESH : HumansMESH: KetocholesterolsU937 CellsFlow CytometryMESH: Fluorescent DyesMESH: Image Processing Computer-AssistedMitochondriaMESH: Staining and Labeling[SDV.IB.IMA] Life Sciences [q-bio]/Bioengineering/ImagingMicroscopy Fluorescence MultiphotonMESH : MonocytesMESH : Fluorescence Resonance Energy TransferMESH : Cell DeathMESH : U937 CellsMESH: Microscopy Fluorescence MultiphotonMESH : MitochondriaMESH: OxazinesMESH : Image Processing Computer-Assisted
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Effect of rat plasma high density lipoprotein with or without apolipoprotein E on the cholesterol uptake and on the induction of the corticosteroid b…

1991

Abstract High density lipoprotein (HDL) has been shown to induce the cellular accumulation of cholesterol esters and the biosynthesis of 21-hydroxysteroids (corticosteroids) newborn rat adrenocortical cells cultivated in serum-free medium. In order to identify the component(s) of HDL responsible for these effects, we investigated the ability of rat HDL subfractions and HDL with or without apolipoprotein E to deliver cholesterol to cells and to stimulate the steroid biosynthetic pathways in adrenal cultured cells. The total cholesterol uptake from HDL 2 was greater than that observed with HDL rich in apolipoprotein E (HDL 1 and HDL c ). Furthermore, the increase of the ratio between 21-hydro…

Apolipoprotein Emedicine.medical_specialtyApolipoprotein Bmedicine.medical_treatmentBiologySteroidMicechemistry.chemical_compoundApolipoproteins EHigh-density lipoproteinBiosynthesisAdrenal Cortex HormonesCorticosteroneInternal medicinemedicineAnimalsMolecular BiologyCells CulturedCholesterolnutritional and metabolic diseasesCell BiologyRatsLipoproteins LDLCholesterolEndocrinologyAnimals NewbornchemistryAdrenal Cortexbiology.proteinlipids (amino acids peptides and proteins)Apolipoprotein C2Lipoproteins HDLBiochimica et Biophysica Acta (BBA) - Molecular Cell Research
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