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主营:研究并生产荧光和发光探针,信号转导研究的试剂
℡ 4000-520-616
℡ 4000-520-616
AAT Bioquest/Cell Meter™ Live Cell Caspase 3/7 and Phosphatidylserine Detection Kit *Triple Fluorescence Colors*/22850
产品编号:22850
市  场 价:¥85560.00
场      地:美国(厂家直采)
联系QQ:1570468124
电话号码:4000-520-616
邮      箱: info@ebiomall.com
美  元  价:$4278.00
品      牌: AAT Bioquest
公      司:AAT Bioquest
公司分类:
AAT Bioquest/Cell Meter™ Live Cell Caspase 3/7 and Phosphatidylserine Detection Kit *Triple Fluorescence Colors*/22850
商品介绍
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Ex/Em(nm)None/None
MWN/A
CAS#N/A
SolventN/A
StorageF/D/L
CategoryCellAnalysis
CellCytotoxicity
RelatedApoptosisandCytotoxicity
CellApoptosis
BiochemicalAssays
OurCellMeter™assaykitsareasetoftoolsformonitoringcellularfunctions.Intheprocessofapoptosis,oneofkeyeventsistheactivationofcaspases.Theactivationofcaspase3/7isanimportantfortheinitiationofapoptosis.Ithasbeenproventhatcaspase3/7hassubstrateselectivityforthepeptidesequenceAsp-Glu-Val-Asp(DEVD).ThiskitusesSR-DEVD-FMKasafluorescentindicatortodetectcaspase3/7activities.SR-DEVD-FMKiscellpermeableandnontoxic,onceboundtocaspases,thefluorescentreagentisretainedinsidethecell.Thebindingeventpreventsthecaspasesfromfurthercatalysisbutwillnotstopapoptosisfromproceeding.SR-DEVD-FMKisaredlabelreagentwithEx/Em=550/595nm.Annexinsareafamilyofproteinsthatbindtophospholipidmembranesinthepresenceofcalcium.AnnexinVisusedtodetectapoptoticcellsthatexpressphosphatidylserine(PS)onthecellsurface.TheappearanceofPSonthecellsurfaceisauniversalindicatoroftheinitial/intermediatestagesofcellapoptosis.AnnexinV-dyeconjugatesmonitorcellapoptosisthroughmeasuringthetranslocationofPS.TheAnnexinV-iFluor488™usedinthiskitisagreenlabelingreagent,withEx/Em=490/525nm.ThekitisdesignedtodetectapoptosisbysimultaneouslymonitoringCaspase3/7andAnnexinVactivitiesinmammaliancells.ThekitalsoprovidesaHoechstdyeforlabelingthenucleusofthewholepopulationofthecells,andpropidiumiodidedyeforstainingnecrosiscells.Thiskitisapplicableforfluorescencemicroscope,flowcytometer,andfluorescencemicroplatereader.Thekitprovidesalltheessentialcomponentswithanoptimizedassayprotocol.

Thisprotocolonlyprovidesaguideline,andshouldbemodifiedaccordingtoyourspecificneeds.

1.      Culturecellstoadensityoptimalforapoptosisinductionaccordingtoyourspecificinductionprotocol,butnottoexceed2x106cells/mL(ornottoexceed3x105cells/100μL/wellina96-wellblackclear-bottomplate).Atthesametime,cultureanon-inducednegativecontrolcellpopulationatthesamedensityastheinducedpopulationforeverylabelingcondition. Hereareafewexamplesfor inducingapoptosisinsUSPensionculture:

 

1)TreatingJurkatcellswith2μg/mlcamptothecinfor3hours.

2)TreatingJurkatcellswith1μMstaurosporinefor3hours.

3)TreatingHL-60cellswith4μg/mlcamptothecinfor4hours.

4)TreatingHL-60cellswith1μMstaurosporinefor4hours.

 

Note:Eachcelllineshouldbeevaluatedonanindividualbasistodeterminetheoptimalcelldensityforapoptosisinduction.Foradherentcells,use2-3x104cells/welltostart.

 

2.      Make150XTF3-DEVD-FMKDMSOstocksolutionbyadding200μLofDMSOtothevialofTF3-DEVD-FMK(ComponentA).

 

3.      AddTF3-DEVD-FMKata1:150ratioand/orAnnexinV-iFluor488™(ComponentB)at1:100ratiointoeachwell,incubatethecellsina37°C,5%CO2incubatorfor1hour.

 

Note1:Thecellscanbeconcentratedupto~5X106cells/mLforTF3-DEVD-FMKlabeling.Theunused150XTF3-DEVD-FMKDMSOstocksolutionshouldbedividedassingleusealiquotandstoredat-20°C.

Note2:Foradherentcells,gentlyliftthecellswith0.5mMEDTAtokeepthecellsintact,andwashthecellsoncewithserum-containingmediapriortoincubationwithTF3-DEVD-FMK.

Note3:AnnexinVflowcytometricanalysisonadherentcellsisnotroutinelytestedsincespecificmembranedamagemayoccurduringcelldetachmentorharvesting.However,methodsforutilizingAnnexinVforflowcytometryonadherentcelltypeshavebeenpreviouslyreportedbyCasiola-Rosenetal.andvanEngelendetal(seeRefs1and2).

Note4:Theappropriateincubationtimedependsontheindividualcelltypeandcellconcentrationused.Optimizetheincubationtimeforeachexperiment.

 

4.      Ifdesired,labelthecellswithaDNAstain(suchasHoechstforwholepopulationofthecellnucleusstain,orpropidiumiodidefordeadcellsifthecellslabelwithAnnexinV-iFluor488™only).

 

5.      Spindownthecellsat~200gfor2minutes,andwashcellswithandwashcellswith1mL(or200μL/wellifusing96-wellplate)washbuffer(ComponentE)twice.Resuspendthecellsindesiredamountofwashingbuffer.

Note1:TF3-DEVD-FMKand AnnexinV-iFluor488™ arefluorescent,thusitisimportanttowashoutanyunboundreagenttoeliminatethebackground.

Note2:Fordetachedcells,theconcentrationofcellsshouldbeadjustedto2-5X105cells/100μLaliquotpermicrotiterplatewellforuseinstep6.

 

6.      Monitorthefluorescenceintensitybyfluorescencemicroscopy,flowcytometer,orfluorescentmicroplatereaderatEx/Em=550/595nmforTF3-DEVD-FMK,490/525forAnnexinV-iFluor488™,350/461nmforHoechststain,and535/635forpropidiumiodide.

 

6.1   Forflowcytometry,monitorthefluorescenceintensityusingtheFL1channelforAnnexinV-iFluor488™,FL2channelforTF3-DEVD-FMK.Gateonthecellsofinterest,excludingdebris.

 

6.2   Forfluorescencemicroscopyandfluorescentmicroplatereader.Place100μLofthecellsuspensionsintoeachofwellsofa96-wellblackmicrotiterplate. 

Note: Ifitisnecessarytoequilibratethecellconcentrations,adjustthesuspensionvolumefortheinducedcellstoapproximatethecelldensityofthenon-inducedpopulation. Thisadjustmentstepisoptionalifyourcelltreatmentdoesnotresultinadramaticlossinstimulatedcellpopulationnumbers.

 

6.3   ObservecellsunderafluorescencemicroscopeusingTRITCchannelforTF3-DEVD-FMK,and/orFITCchannelforAnnexinV-iFluor488™(TRITCchannelforpropidiumiodidestaining,DAPIchannelforHoechststaining)

 

6.4   MonitorthefluorescenceintensityusingEx/Em=490/525nm(cutoffat515nm)forTF3-DEVD-FMK,and/or550/595nm(cutoff575)forAnnexinV-iFluor488™ bottomreadmodeforafluorescentmicroplatereader.

References&Citations
CitationExplorer

Anthocyanin-richblackcurrantextractinhibitsproliferationoftheMCF10AhealthyhumanbreastepithelialcelllinethroughinductionofG0/G1arrestandapoptosis
Authors:NaokiNanashima,KayoHorie,MitsuruChiba,ManabuNakano,HayatoMaeda,ToshiyaNakamura
Journal:MolecularMedicineReports(2017):6134--6141

ClusterinsignalsviaApoER2/VLDLRandinducesmeiosisofmalegermcells
Authors:MuhammadAssadRiaz,AngelikaStammler,MareikeBorgers,LutzKonrad
Journal:AmericanJournalofTranslationalResearch(2017):1266

DetectingApoptosis,Autophagy,andNecrosis
Authors:JackColeman,RuiLiu,KathyWang,ArunKumar
Journal:ApoptosisMethodsinToxicology(2016):77--92


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