Skp2基因的研究进展-李勇

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2013:2012-04-12:(30571330);[(2007)173];;:(1970-),,,,,,()13707091506()liyong@mail.jxau.edu.cn;,,,,,()kuili@iascaas.net.cn。52320132HubeiAgriculturalSciencesVol.52No.3Feb.,20131995Zhang[1]Skp2S。,,Skp2,;。Skp2。1Skp2Skp2(S-phasekinase-interactingprotein)FBXL1,F-box。1995Zhang[1]SCy-clinA-CDK2Skp2,S。Demet[2]Skp25p13,。Skp240F-box、10Linker,F-boxSkp1,。Skp2Grr1,CyclinE[3]。Ji[4]Skp2CyclinA。Skp21,2,3(1.,330045;2.,430070;3.,100193):Skp2被称为S期激酶相关蛋白,属于F-box蛋白家族成员,在蛋白泛素化降解过程中可作为SCF-Skp2复合物的重要成分起识别底物蛋白的作用,主要通过降解细胞周期调节蛋白介导细胞周期调控和细胞增殖。为更全面地了解Skp2的研究进展及开展其在动物科学与医学领域的研究,从Skp2基因的结构、功能、与人类肿瘤致病机理、转录调控和启动子方面的关系进行了综述。:Skp2基因;功能;转录调控;肿瘤;启动子:Q74;Q789:A:0439-8114(2013)03-0502-06ResearchProgressinSkp2GeneLIYong1,PENGKe-mei2,LIKui3(1.CollegeofAnimalScienceandTechnology,JiangxiAgriculturalUniversity,Nanchang330045,China;2.CollegeofAnimalScienceandVeterinaryMedicine,HuazhongAgriculturalUniversity,Wuhan430070,China;3.InstituteofAnimalScience,ChineseAcademyofAgriculturalSciences,Beijing100193,China)Abstract:Skp2,calledS-phasekinase-associatedprotein2,belongstoamemberofF-boxproteinfamily.ItplaysaroleasanimportantcomponentofSCF-Skp2compoundforrecognizingsubstrateproteininubiquitin-proteindegradationprocess.Itmainlymediatescellcycleregulationandcellproliferationbydegradingcyclins.InordertoroundlyunderstandresearchprogressinSkp2anddevelopstudyonanimalscienceandveterinarymedicinefield,thisreviewonSkp2genedescribesitsstructure,function,pathopoiesismechanisminhumantumor,transcriptionalcontrolandpromoter.Keywords:Skp2gene;function;transcriptionalcontrol;tumor;promoterDOI:10.14088/j.cnki.issn0439-8114.2013.03.00132Skp2SCF(Skp1-Cul1-F-boxprotein)E3,Skp1F-box。,F-boxF-boxSkp1,,[5-7]。Skp2SCFSkp2。SCFSkp2:Cul1-Rbx1-Skp1-F-boxSkp2,Rbx1Skp1-F-boxSkp2。Cul1,3。Cul1415Skp1-F-boxSkp2N360Rbx1C[8]。2.1Skp2SCF、,CDKN1B/p27kipG1/S。SCFSkp2,Skp2,G1/S、S、S/G2[9-11]。Skp2,、[3]。,Skp2p27kip1,CDK2CDK1,p27kip1DNA[3,11-14]。,Myc[15-18]、CyclinE[19]、p57kip2[20]、p21WAP1[21]、p130[22,23]、Cdt1[24]、hOrc1p[25]E2F1[26]Skp2。,Skp2[1,27]。Skp2G1,G1/S,S,G2M。mRNA,Skp2mRNA[27-31]。Skp2Skp2[27-29],2003Imaki[32]GASkp2。Skp2,Skp2。,Skp2H-Ras[33]。Skp2[34,35],,Skp2mRNA[36-38]。Zhang[39]Skp2,hSRE2Skp2。Skp2CyclinE。CyclinECDK2Skp2,CyclinE,CyclinESkp2CyclinE[3]。,CKISkp2CyclinE-CDK2p27Kip1Thr-187[12,14]。p27Kip1G1,CyclinES。CKI,p27Kip1Skp2Cy-clinE,SCyclinE。,S/G2Skp2CyclinE,Skp2G1/S[40]。,Skp2CyclinASkp2。Skp2,CyclinA,Skp2CyclinA。Skp2CyclinA,p27CyclinA[4]。SCFSkp2G1/S。Skp2p27Kip1、[3]。Skp2p27Kip1S[33,37,41-44],Skp2T[37]。Skp2,SCFSkp23Skp1、Cul1Rbx1,Skp2。Skp2G1/S,S/G2,M,。Skp2mRNAHeLaNIH3T3,Skp2[27]。2.2Skp2Skp2。。p27:Skp25032013,,p27。SCFp27,Skp2p27。Skp250%,、。p27Skp2,Skp2,[45]。Wu[46]Skp2,Skp2。、,Skp2,Skp2。Boix-Perales[47],Skp2,Skp2,Skp2。,SCFSkp2,Skp2。Xic1,SCFSkp2,Skp2。3Skp2,,、、DNA。:,。Skp2[48,49]。Gstaiger[50]Skp2p27。Skp2p27。Skp2,Skp2p27。Skp2,。75Skp2,53%Skp24%,47%4%。,Skp2p27,Skp2TUNEL。Skp2,[51]。Forkhead,。Huang[52]Skp2FOXO1,Skp2FOXO1FOXO1。Skp2,FOXO1,Skp2FOXO1。Latres[53]Skp2。Skp2。Skp2p27,。Hung[54]Skp2,(MMP-2MMP-9),Skp2,Skp2。Skp2,,。Skp2,。Skp2,,、[48]。4Skp2Skp2mRNA,G1/SS,,Skp2。Zhang[39]Skp2Skp2E2F,E2F1Skp2,E2F1Skp2。E2F1AS-ODN,E2F1,Skp2mRNA;Skp2mRNA,E2F15043Skp2。Skp2mRNA,Skp2,CACTTCCGGA-(GABP),Skp2。GABPSkp2,GABPSkp2,GABPSkp2G1/S[32]。5Skp2Imaki[32]Skp25′,。TATA,3GC(Sp1),GABP、Taf-1PacC-166~-159、-10~-1-188~-172。-207~-103Skp2。Skp2,Zhang[39]Skp24237bp,Skp2ATG500bp67%。186bp,TATAACCAAT。,,c-Rel/NF-kap、AP1、SRY、Sp1、GATAE2F(1),+65~+149Skp2。6,Skp2,,,、,。,Skp2:①a.ATG500bp;(+1),;;b.Skp21Skp2[39]:Skp25052013,。,、、、,。Skp2。②,,。Skp2,,。:[1]ZHANGH,KOBAYASHIR,GALAKTIONOVK,etal.Pl9Skplandp45Skp2areessentialelementsofthecyclinA—CDK2Sphasekinase[J].Cell,1995,82(6):915-925.[2]DEMETRICKDJ,ZHANGH,BEACHDH,etal.Chro-mosomalmappingofthegenesforthehumanCDK2/cyclinAassociatedproteinsp19andp45[J].CytogenetCellGenet,1996,73(122):104-107.[3]NAKAYAMAK,NAGAHAMAH,MINAMISHIMAYA,etal.TargeteddisruptionofSkp2resultsinaccumulationofcyclinEandp27(Kip1),polyploidyandcentrosomeoverduplication[J].EMBOJ,2000,19(9):2069-2081.[4]JIP,GOLDINL,RENH,eta1.Skp2containsanovelcy-clinabindingdomainthatdirectlyprotectscyclinAfromin-hibitionbyp27Kip1[J].TheJournalofBiologicalChemistry,2006,281(33):24058-24069.[5]BAIC,SENP,HOFMANNK,eta1.Skp1connectscellcy-cleregulatorstotheubiquitinproteolysismachinerythroughanovelmotif,theF-box[J].Cell,1996,86(2):263-265.[6]FELDMANRM,CORRELLCC,KAPLANKB,etal.AcomplexofCdc4p,Skp1p,andCdc53p/cullincatalyzesubiq-uitinationofthephosphorylatedCDKinhibitorSic1p[J].Cell,1997,91:221-230.[7]SKOWYRAD,CRAIGKL,TYERSM,etal.F-boxpro-teinsarereceptorsthatrecruitphosphorylatedsubstratestotheSCFubiquitin-ligasecomplex[J].Cell,1997,91(2):209-219.[8]ZHENGN,SCHULMANBA,SONGLZ,etal.StructureoftheCul1-Rbx1-Skp1-F-boxSkp2SCFubiquitinligasecomplex[J].Nature,2002,416(6882):703-709.[9]DESHAIESRJ.SCFandCullin/RINGH2-basedubiquitinligases[J].AnnuRevCellDevBiol,1999,15:435-467.[10]KOEPPDM,HARPERJW,ELLEDGESJ.Howthecy-clinbecameacyclin:regulatedproteolysisinthecellcycle[J].Cell,1999,97(4):431-434.[11]NAKAYAMAK,NAGAHAMAH,MINAMISHIMAYA,etal.Skp2-mediateddegradationofp27regulatesprogressionintomit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