Inhibition of cholesterol biosynthesis by Δ22-unsaturated phytosterols via competitive inhibition of sterol Δ24-reductase in mammalian cells
FERNÁNDEZ C, SUÁREZ Y, FERRUELO AJ, GÓMEZ-CORONADO D, LASUNCIÓN MA. Inhibition of cholesterol biosynthesis by Δ22-unsaturated phytosterols via competitive inhibition of sterol Δ24-reductase in mammalian cells. Biochemical Journal 2002, 366: 109-119. PMID: 12162789, PMCID: PMC1222779, DOI: 10.1042/bj20011777.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBinding, CompetitiveCaco-2 CellsCholesterolChromatography, High Pressure LiquidDose-Response Relationship, DrugHL-60 CellsHumansHypolipidemic AgentsKineticsMacrophagesMaleMiceMicrosomes, LiverModels, ChemicalOxidoreductasesPhytosterolsRatsRats, Sprague-DawleyStigmasterolTime FactorsTumor Cells, CulturedConceptsCholesterol biosynthesisCholesterol-lowering actionCholesterol-lowering agentsEffective hypocholesterolaemic agentHL-60 human cell linesRat liver microsomesIntestinal absorptionDietary phytosterolsLiver microsomesHypocholesterolaemic agentsLow intracellular concentrationsCaco-2Inhibition of sterolIncorporation of radioactivityHuman cell linesCell linesInhibitionSaturated side chainIntracellular concentrationCholesterolRelevant concentrationsRadioactivity incorporationPresent studyStrong inhibitionCompetitive inhibitionDifferential effects of ergosterol and cholesterol on Cdk1 activation and SRE‐driven transcription
Suárez Y, Fernández C, Ledo B, Ferruelo AJ, Martín M, Vega MA, Gómez‐Coronado D, Lasunción MA. Differential effects of ergosterol and cholesterol on Cdk1 activation and SRE‐driven transcription. The FEBS Journal 2002, 269: 1761-1771. PMID: 11895447, DOI: 10.1046/j.1432-1327.2002.02822.x.Peer-Reviewed Original ResearchConceptsHuman cellsCdk1 activationCell cycle machineryCell membrane formationCell cycle progressionCholesterol-free mediumCell cycle arrestG2/M phaseSpecific regulatorsCycle machineryGene constructsYeast sterolCycle progressionCell cycleCell proliferation inhibitionCycle arrestAction of cholesterolUCN-01Cell growthCyclin B1 expressionSKF 104976Cholesterol homeostasisM phaseMembrane formationCell proliferation