氨丁三醇在阿尔茨海默病治疗中的作用

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20092510(alzheimer′sdisease,AD),,AD[1]。ADβ(amyloidβ,Aβ)。AβAD:β。:swedish(amyloidprecursorprotein,APP)N2aswedishAPPPresenilin1,。:,,,。,,erk1/2。:β,。;;β3,[4-5][6],。Caspase。caspase4,caspase-3。,caspase,caspase,caspase,,caspase-3,caspase-3。,capase-36h,1d,。6h(P<0.01),3d,7d。[4-5]。capase-3caspase-3。Caspase-3,,。,,,,、、、,,capase-3,[4-6]。,,capase-3。12h,caspase-3,。caspase-3,。12hcaspase-3,。,caspase-3。,“”。,“”。caspase-3,。4,,,.[J].,1996,13(3-4):6-8.,,.[J].,2005,12(1):13-16.,,.[J].,2005,15(4):193-196.GongC,BoulisN,QianJ,etal.Intracerebralhemorrhage-inducedneuronaldeath[J].Neurosurgery,2001,48(4):875-883.KarwackiZ,KowianskiP,DziewatkowaskiJ,etal.Apoptosisinthecourseofexperimentalintracerebralhemorrhageintherat[J].FoliaMorphol(Warse),2005,64(4):248-252.QureshiAI,SuriMF,OstrowPT,etal.Apoptosisasaformofcelldeathinintracerebralhemorrhage[J].Neurosurgery,2003,52(5):1041-1048.(:2009-01-19:)[1][2][3][4][5][6]:100084,,(,,,,);100084,():E-mail:gongyd@tsinghua.edu.cn157520092510,[2-3]。,,[4]。,Aβ[5]。,Aβ(capacitivecalciumentry,CCE)。Aβ。Aβ[5]。Aβ,,AβAD。11.1SwedishAPP695(APPswe)(Neural2a,N2a)Burnham,Aβ。Tg2576Presinilin1M146V(PS1M146V)C57/B6Baylor。CCK8;,Rodanmine123、actin、bax;1/2(extracellularsignal-regulatedkinase,erk)erk1/2SantaCruz。1.2N2aDMEMOpti-MEM,5%1%。,37℃、5%CO2。1.3CCK8,6,t。1.4,PBS,2.5μmol/LDCFH-DAPBS,37℃30min,,PBS3,10×。488nm,525nm。Imageproplus。3,。t。1.5Rodanmine123。,PBS,2μmol/LPBS,37℃30min,PBS3。、1.4。1.6swedishAPPTg2576PS1M146V,APPPS1。3~6(APP/PS)PS+/-,。PS+/-,。,7.2%,1,200μL,7d。。1.7,,。,,,,4℃14000r/min20min,,,10%SDS-PAGE,Western-Blot。22.1APPswe。10mmol/L、20mmol/L、30mmol/L、40mmol/L24h,CCK8。,30mmol/L,(1)。,。2.2,Aβ(ROS)。。,10~30mmol/L,(1)。2.3APPswe。,10mmol/L、20mmol/L、30mmol/L(1)。2.4。Bax,(1)。erk1/2,erk1/2PS+/-,erk1/2,(1)。10mmol/L20mmol/L30mmol/L40mmol/LCCK8(n=6)1.00±0.030.97±0.050.93±0.050.96±0.060.83±0.07*ROS(n=3)1.00±0.120.60±0.22*0.42±0.04#0.29±0.02#-(n=3)1.00±0.291.33±0.121.09±0.081.11±0.05-1:,*P<0.05,#P<0.011576200925103,APPswe,,。,pH,,pH,。。,,pH,pH。AβROS,,[6]。,APPswe10mmol/L、20mmol/L、30mmol/L,ROS。AβROS,,AβROS。,。,Aβ[5]。,,ROS。,,AβROS。AD。3~5Presenilin(PS)APP。AD,,AD。,,,,()。,Bax。,bax。Erk1/2,erk1/2,。erk1/2。ERKMAPK,、。erk1/2AD,erk1/2,。,,AβROSerk1/2,AD。(:BurnhamN2a,Baylor;(GrantNo.20240000514),(GrantNo.H060920050430)。)4RobersonED,MuckeL.100yearsandcounting:prospectsfordefeatingAlzheimer′sdisease[J].Science,2006,314(5800):781-784.ArispeN,RojasE,PollardHB.Alzheimerdiseaseamyloidbetaproteinformscalciumchannelsinbilayermembranes:blockadebytromethamineandaluminum[J].ProcNatlAcadSciUSA,1993,90(2):567-571.RheeSK,QuistAP,LalR.Amyloidbetaprotein-(1-42)formscalcium-permeable,Zn2+-sensitivechannel[J].JBiolChem,1998,273(22):13379-13382.ArispeN,DiazJC,SimakovaO.Aβionchannels.ProspectsfortreatingAlzheimer′sdiseasewithAβchannelblockers[J].BiochimicaetBiophysicaActa,2007,1768(11):1952-1965.SimakovaO,ArispeNJ.EarlyandlatecytotoxiceffectsofexternalapplicationoftheAlzheimer′sAbetaresultfromtheinitialformationandfunctionofAbetaionchannels[J].Biochemistry,2006,45(18):5907-5915.BehlC,DavisJB,LesleyR,etal.Hydrogenperoxidemediatesamyloidbetaproteintoxicity[J].Cell,1994,77(6):817-827.(:2008-06-22:):tro“+”;“-”;“Tro”“”1;(APP/PS1)(PS+/-)[1][2][3][4][5][6]1577

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