Description | Liproxstatin-1isapotentferroptosisinhibitor,withIC50ofappr38nM. |
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IC50&Target | EC50:38nM(ferroptosis)[2] |
InVitro | Liproxstatin-1preventsBODIPY581/591C11oxidationinGpx4−/−cells.Moreover,Liproxstatin-1doesnotinterferewithotherclassicaltypesofcelldeath,suchasTNFα-inducedapoptosisandH2O2-inducednecrosis,andinthebonafideL929modelofTNFα/zvad-inducednecroptosis[1].Liproxstatin-1hasgreatantiferroptoticactivitywithEC50ofappr38nM.Fer-1andLiproxstatin-1areinherentlygood,butnotgreat,rADIcal-trappingantioxidants,buttheyareexcellentinphospholipidbilayers.Fer-1(10μM)andLiproxstatin-1(10μM)donotexhibitsignificantinhibitoryactivityinthe15-LOX-1overexpressingcells,andtheconcentrationisalmost1000-foldhigherthantheirEC50sforsubvertingRSL3-inducedferroptosisinthesecells(15and27nM,respectively)[2]. |
InVivo | Liproxstatin-1(10mg/kg,i.p.)suppressesferroptosisinhumancells,Gpx4−/−kidneyandinanischaemia/reperfusion-inducedtissueinjurymodel[1]. |
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PreparingStockSolutions |
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CellAssay [1] | ToinducetheknockoutofGpx4,cellsareseededonto96-wellplates(1,000cellsperwell)andtreatedwith1μM4-OH-tamoxifen(TAM)afterplating.CellviABIlityisassessedatdifferenttimepointsaftertreatment(usually72h)usingAquaBluer,unlessstatedotherwise,asanindicatorofviablecells.Alternatively,celldeathisalsoquantifiedbymeasuringreleasedlactatedehydrogenase(LDH)activityusingtheCytotoxicityDetectionKit.MCEhasnotindependentlyconfirmedtheaccuracyofthesemethods.Theyareforreferenceonly. AnimalAdmiNISTration | [1] Liproxstatin-1isformulatedin1%dimethylsulphoxide(DMSO)inPBS. AnimalsincludesinthetreatmentstudyofinducIBLeGpx4−/−miceareequallydistributedbetweensexandweight,withtypically8-10weeksofage.Theaverageweightwithinthegroupsisbetween22and24g.Groupsareformedtohavecomparablenumbersoffemales/malesofthesameage.Animalweightisarrangedtohaveasimilardistributionbetweenfemalesandmales.Forthepharmacologicalinhibitorexperiments,CreERT2;Gpx4fl/flmiceareinjectedonday1and3with0.5mgTAMdissolvedinMiglyol.Onday4,compoundtreatmentisstarted(Liproxstatin-1:10mg/kg)alongwithvehiclecontrol(1%dimethylsulphoxide(DMSO)inPBS).Liproxstatin-1andvehiclecontrolareadministeredoncedailybyi.p.injection.SurvivalanalysisisperformedusingtheGraphPadPrismsoftwareandstatisticalanalysisisdoneaccordingtothelog-ranktest.MCEhasnotindependentlyconfirmedtheaccuracyofthesemethods.Theyareforreferenceonly. References |
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