Description | CyclosporinAisanimmunosuppressiveagent,thatbindstothecyclophilinandtheninhibitscalcineurinwithIC50of7nMinacell-freeassay,andiswidelyusedinorgantransplantationtopreventrejection. |
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IC50&Target | IC50:7nM(calcineurin) |
InVitro | CyclosporinAbindstothecyclophilin(immunophilin)inTcells[1],andformsaCyclophilin-CyclosporinAcomplexwhichinhibitscalcineurin[2]. CyclosporinAinhibitscalcineurinwithIC50of7nM[3],thenblocksthenucleartranslocationofNF-AT[4]. CyclosporinAalsoaffectsmitochondriabypreventingtheMTP(mitochondrialpermeABIlitytransitionpore)fromopeningwithanIC50of39nM[5]. |
InVivo | CyclosporinAisanimmunosuppressiveagentthatiseffectivefollowingeitherparenteralororaladmiNISTrationinmice,ratandguineapigs[6]. CyclosporinAisclinicallyusedinorgantransplantationtopreventrejection[7]. |
ClinicalTrial | ViewMoreCollapse |
References |
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PreparingStockSolutions |
Pleaserefertothesolubilityinformationtoselecttheappropriatesolvent. | ||||||||||||||||
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KinaseAssay [3] | Reactionmixtureswithpurifiedenzymecontains100nMcalcineurin,100nMcalmodulin,and5μM 32P-labeledphosphopeptide,in60μL(totalvolume)ofassaybuffercontaining20mMTris(pH8),100mMNaCl,6mMMgCl2,0.5mMdithiothreitol,0.1mgofbovineserumalbuminpermL,andeither0.1mMCaCl2or5mMEGTA.Reactionmixtureswithcelllysatescontains20μLofundilutedlysate,5μM 32P-labeledphosphopeptide,and40μLofassaybuffer.Reactionmixturescontains50μMpeptide412or413and/or500nMokadaicacid,aspecificinhibitorofphosphatases1and2A;500nMokadaicacidissufficientforinhibitionofCa2+-independentphosphatases,whereashigherconcentrationspartiallyinhibitCa2+-dependentactivityaswell.After15minat30°C,reactionsareterminatedbytheadditionof0.5mLof100mMpotassiumphosphatebuffer(pH7.0)containing5%trichloroaceticacid.FreeinorganicphosphateisisolatedbyDowexcation-exchangechromatographyandquantitatedbyscintillationcountingasdescribed.MCEhasnotindependentlyconfirmedtheaccuracyofthesemethods.Theyareforreferenceonly. | ||||||||||||||||
CellAssay [3] | CyclosporinAisdissolvedinethanol. Immunosuppressiveagentsaredissolvedinethanolatconcentrations1000-foldmorethantheconcentrationdesiredforcelltreatments.Cells(106)aresUSPendedin1mLofcompletemediuminmicrocentrifugetubes;1μLofethanoloroftheethanolicsolutionofCyclosporinAisadded,andthecellsareincubatedat37°Cfor1hr.Cellsarewashedtwicewith1mLofPBSoniceandlysedin50μLofhypotonicbuffercontaining50mMTris(pH7.5);0.1mMEGTA;1mMEDTA;0.5mMdithiothreitol;and50μgofphenylmethylsulfonylfluoride,50μgofsoybeantrypsininhibitor,5μgofleupeptin,and5μgofaprotininpermL.Lysatesaresubjectedtothreecyclesoffreezinginliquidnitrogenfollowedbythawingat30°Candthenarecentrifugedat4°Cfor10minat12,000×g.MCEhasnotindependentlyconfirmedtheaccuracyofthesemethods.Theyareforreferenceonly. | ||||||||||||||||
AnimalAdministration [6] | CyclosporinAissuspendedin0.5%solutionoftragacanth. Ratsareimmunizedonday0i.p.with05mLandmicei.v.with02mLofa10%suspensionofwashedsheeperythrocytes(SE).Toelicitasecondaryresponse,miceareboosted8-11weeksaftertheprimaryimmunizationwithani.v.injectionof0-2mLof025%washedSE(107cells).Forprolongedtreatmenttheanimalsreceiveontheaverage45mg/kgcyclosporinAdailyinthefoodduring13weeks.Theseratsareimmunized5daysbeforekilling.MCEhasnotindependentlyconfirmedtheaccuracyofthesemethods.Theyareforreferenceonly. | ||||||||||||||||
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MolecularWeight | 1202.61 | ||||||||||||
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Formula | C₆₂H₁₁₁N₁₁O₁₂ | ||||||||||||
CASNo. | 59865-13-3 | ||||||||||||
Storage |
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Shipping | RoomtemperatureincontinentalUS;mayvaryelsewhere | ||||||||||||
Solvent&Solubility | 10mMinDMSO *"<1 mg/ml"="" means="" slightly="" soluble="" or="" insoluble.="" "≥"="" means="" soluble,="" but="" saturation="">1> Purity:>98.0% 品牌介绍
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