·论5Mukoyama善·M,NakaoK,SaitoY。eta1.Increasedhumanbrainnatri-111262SilvetH,Young—XuJMedRe¥sOct2010,v。1.39No.10ureticpeptideincongestiveheartfailure.NEnglJMed,1990,323Y,WalleighD,BavidwithatrialS.Brainnatriureticpep·(11):757—7586tideiselevatedinoutpatientsfibrillation.AmJCardiol,中华神经科学会.各类脑血管疾病诊断要点[J].中华神经内杂志,1996,29(6):3792003,92(9):1124一112712刘舟,李敬诚.脑梗死患者血清脑钠素的变化及I临床意义.安徽医a1.Markedexpressionofplas—137NishigukimaK.TomitaM。KagawaK,etnatriureticpeptideisAm药,2006,5(3):113—115张春玲,康金锁.心血管病患者皿浆N端B型脑钠肽水平变化及其临床意义.中华检验医学杂志.2006,29(1):31—3414brainspecialCoilfeatureofhypertrophicob-structive12428cardiomyopathy.JCardiol,1996,28(5):1234—McClateheyFD.ClinicalLaboraryMedicine.2ndedition.Philadel—SuttonTM.StewarttideRAH.GerberIL,eta1.Plasmanatriureticpep-phia:LippincottWilliams&Wilkins,2002levelsincreasewithsymptomsandseverityofmitralregurgitation.15陈子,陈怀红,陈琳迪.脑梗死患者血清BNP与CRP浓度的变化及临床意义.心脑血管病防治,2008,8(4)225—226J9AmCoilCardi01.2003,41(12):2280—2287K,eta1.BrainnatriureticpeptideKohnoM,HorioT,Yokokawacardiachormonein29—3416PedroJModrego,BeatfizBoned,JuanJandBerlanga,eta1.PlasmaticBProteininHyperacuteessentialhypertension.AmJMed,1992,92(1):··TypeStrokeNatriureticPeptideC·-ReactiveofBrainMarkersofCt—EvidenceEdema..Intemational10RossiA,Enriquez—SaranotidelevelsinM,BumettJrJC,eta1.Natriuroticpep—Doppler—JournalofMedicalSciences,2008。5(1):18—23atrialfibrillation:aprospectivehormonaland(收稿:2010—05一11)(修回:2010—07—05)echocardiographicstudy.JAmCoilCardiol,2000,35(5):1256一1,25(OH)2维生素D3和塞莱昔布协同对5一FU化疗的增敏作用孙根林鲍扬漪摘要目的研究塞来昔布(特异性环氧合酶一2抑制剂)联合1,25(OH):维生素D,增强5一Fu对结肠癌化疗增敏作3种药物用单药、两药和3药联合干预结肠癌细胞株HT2948h,用ELSA法观察干预后结肠癌细胞抑制率和单药、两药和3药联合塞莱昔布和1,25用及其机制。方法基质金属蛋白酶一7(MMP一7)表达变化及联用5一Fu后溶解型Fas受体(8一FasL)表达的变化。结果干预结肠癌细胞株HT29后抑制率增加,MMP一7表达减少及8一Fas表达减少(P<0.05或P<0.01)。结论(OH):维生素D,协同对5一FU的增敏作用,其机制可能通过抑制MMP一7表达,降低其对细胞表面Fas的酶解作用,促进结肠癌细胞凋亡。关键词1,25(OH):维生素D,5一FU敏感性SunGenlin,BaoYangyi.TheEffectof1,25(OH)2VitD3CombinedHospitalwithCeleeoxlbSensitivityIncreasingby5一FUChemotherapy.FirstPeopleofHefei,Anhui230061,ChinaTostudythemolecularmechanismofenhancingthesensitivityof5一FUchemotherapybyAbstractcificCOX-20bjectiveeeleeoxib(aspe-wereinhibitors)combinedwith1,25(OH)2VitD3inthecoloncells.MethodsThecoloneelllinesHT29in.terventedwithpernatantdrug.twodrugsandthreedrugsfor48h.DeterminationofMMP一7and8一FasLtiterwaswasdonethroughcellculturewerebymeansofELISA.AfterthedeterminationofODvaluesweredonebymeansofM'IT,inhibitionrateratescalculated.ResultsAfterHT29cellstreatedbydrug,twodrugsandthreedrugs,theinhibitionincreased,andtheconcentrationofMMP一7ands—Fasdecreasingwnsobserved(P<0.05P<0.01).ConclusionThemolecularmechanismofenhancingthesensitivityof基金项目:合肥市科技局重点科研项目(合科2007第15号)作者单位:230061安徽省合肥市第一人民医院肿瘤科通讯作者:鲍扬漪,电子信箱:baoyyi@yahoo.tom.cn·74·万方数据医学研究杂志2010年10月第39卷第10期·论吾·5一FUchemotherapybycelecoxiband1,25(OH)2VitD3inthecoloncellsmaybeinhibitingthecellsinexpressionofMMP一7,reducingthesheddingofFasincellsurfacebyMMP一7,andpromotingapoptosisofthecolon5一FUchemotherapy.KeywordsI,25(OH)2VitD3;5一FU;Sensitivity结肠癌目前治疗主要以手术治疗为主,加用化疗,其中以5一Fu为主的化疗是主要辅助治疗方法,但由于部分患者对5一Fu耐药,使临床上化疗被动提高剂量,加重了药物不良反应。近年来有研究认为塞莱昔布联用二甲胺四环素协同抑制乳腺癌骨转移和1,25(OH),维生素D,对5一Fu耐药结肠癌细胞增生起增敏作用,我们的研究发现环氧合酶一2(COX一2)抑制剂塞莱昔布和l,25(OH):维生素D,协同在乳腺癌癌细胞株Hs578T中起抑制增生作用,进一步研究在结肠癌细胞株HT29中两药协同对5一FU化疗的增敏作用及其机制,可为临床化疗提供新思路¨。1。材料与方法1.材料:结肠癌细胞株HT29(中科院上海细胞库),RP-M11640培养液(北京天竺生物公司),新生牛血清(杭州四季青生物公司),MMP一7试剂盒(武汉博士德生物公司),s—FasL单抗试剂盒(武汉博士德生物公司),塞莱昔布(辉瑞制药有限公司)及1,25(OH),维生素D,(上海罗氏公司)。2.方法:(1)分组:前四组:对照组、1,25(OH):维生素D,组、塞莱昔布组、1,25(OH):维生素D,+塞莱昔布组;后四组:5一Fu组、1,25(OH):维生素D,+5一FU组、塞莱昔布+5一FU组、3药组。(2)操作步骤:①用96孔板将HT29细胞放置于37℃、5%CO,无菌孵箱中培养24h左右,倒置显微镜观察细胞数,细胞贴壁铺满孑L底,PBS冲洗3遍,加含1,25(OH),维生素D,(10。9p.moL/L)、塞莱昔布(1ILLmol/L)的无血清培养液200扯1,培养48h。48h后,每孔取上清液100p1放在一70℃冰冻保存,进行MMP一7检测,每孔加M1Yr(5mg/m1)201zl。在培养4h后吸去上清液,加二甲亚砜(2.5%)150斗1摇床低速振动10min,细胞进行酶标仪测定OD值,计算抑制率;②基本步骤同上除加入上述药物外,同时加入5一FU使得培养液中5一FU浓度为5p,mol/L,其余两药浓度与上相同,细胞进行酶标仪测定OD值计算抑制率,上清液进行MMP一7和s—FasL测定。MMP一7和8一FasL测定严格按照试剂盒说明书进行。(3)共铺96孔板5块,指标测定的上清液为5孔上清液的混合液。抑制率计算的OD值为5孔平均值。3.统计学处理:(I)抑制率的计算:抑制率=I一实验组OD值/对照组OD值×100%,根据金氏公式q=E(a+b)/Ea+Eb—Ea×Eb;O>I.15且两者抑制率比较(P<0.05)即有协同效应H1。(2)实验数据以i±s表示,采用SPSSl3.0软件使用单因素方差分析£检验并进行两两比较及相关性检验,P<0.05为有统计学意义。结果在前4组中,塞莱昔布组和l,25(OH):维生素万方数据D,联用和单用的抑制率比较,联用组和维生素D,组、塞莱昔布组相比分别P<0.01和0.05,Q>1.15。提示两药联用协同抑制HT29细胞株增生。塞莱昔布组和1,25(OH):维生素D,联用和单用的上清液中MMP一7浓度比较,单药和对照组相比均P<0.01,联用组和单药组相比均P<0.05,显示塞莱昔布和l,25(OH):维生素D,单药抑制HT29细胞株MMP一7表达,两药联用抑制作用更显著。4组中抑制率和上清液中MMP一7浓度值呈负相关关系,P<0.05,推测MMP一7在抑制HT29细胞株增生中起作用(表1)。在后4组中,3药组和5一FU+塞莱昔布组和5一FU+1,25(OH):维生素D,组抑制率比较,以5一Fu组作为对照组,3药组和5一Fu+l,25(OH),维生素D,组、维生素D,组、5一FU+塞莱昔布组相比分别P<0.01和0.05,Q>1.15,提示在5一FU存在时,塞莱昔布和1,25(OH),维生素D,联用协同抑制HT29细胞株增生。3药组和5一FU+塞莱昔布组和5一FU+1,25(OH):维生素D,组的上清液中MMP一7浓度比较,5一FU+塞莱昔布组和5一FU+1,25(OH):维生素D,组和5一FU组相比均P<0.01,3药组和5一FU+塞莱昔布组和5一FU+1,25(OH)2维生素D,组相比均P<0.05,显示在5一Fu存在时,塞莱昔布和1,25(OH):维生素D,单药抑制HT29细胞株MMP一7表达,两药联用抑制作用更显著,4组中抑制率和上清液中MMP一7浓度值及s—Fas浓度值呈负相关关系,P<0.05,可能在5一FU存在时MMP一7在抑制HT29细胞株增生中也起作用,并且推测Fas/Fas}通路在促进HT29细胞株凋亡中起作用(表2)。表1前4组抑制率及MMP一7浓度值的比较(;±s)组别抑制牢(%)OMMP一7(.g/m1)空白组(对照组)2.034-0.841,25(OH)2维生素D3组7.084-2.871.204-0.27。塞莱昔布组11.37±2.261.07±0.27。1,25(OH)2维生素D34-25.18±3.71.1.43±3.71’1.0.67±0.14¨±.4胛塞苤董塑塑与维生素D,组或塞莱昔布组相比,‘P<0.01或(0.05;与对照组相比,’P<O.01;与维生素D3组或塞莱昔布组相比,“P<0.05·75··论吾·JMedPtes,Oct2010。V01.39N。.10与维生素D3组或塞莱昔布组相比,‘P<0.01或<0.05;与对照组相比,。P<0.0l;与维生素D3组或塞莱昔布组相比,“P<0.05;与对照组相比,’P‘O.01;与维生索D3组或塞莱昔布组相比,’’P.(O.05讨论近年来通过对乳腺癌、肺癌、肝癌、直肠癌细胞等的药物(如阿霉素、丝裂霉素、5一FU、干扰素、白细胞介素等)研究发现Fas/FasL途径凋亡起重要作用,其治疗敏感性与MMPs有关。1.塞莱昔布协同1,25(OH):维生素D,抑制HT29细胞增生和促进其凋亡,其中MMP一7起重要作用:在5一Fu存在或不存在时,塞莱昔布协同1,25(OH):维生素D,抑制HT29细胞增生和促进其凋亡,可能MMP一7起重要作用。MMP一7通过其酶解作用使得肝素结合表皮生长因子(HB—EGF)从细胞膜上脱落,导致胰岛素样生长因子(IGFs)从胰岛素样生长因子及其结合蛋白(IGFs—IGFBPs)形成复合物中释放;还可以激活TGF—B,从而促进细胞增生。MMP一7能够使死亡蛋白Fas配体(FasL或CD95),从而促进凋亡抵抗,降低了凋亡的效能”1。2.塞莱昔布和1,25(OH):维生素D,抑制HT29细胞MMP一7表达:在5一FU存在或不存在时,塞莱昔布和1,25(OH),维生素D,抑制HT29细胞MMP一7表达,其机制可能是通过抑制WNT通路和IGFs—IGF—lRaxis激活而降低MMP一7表达。Tian等在研究Smad4在结肠癌转移机制中显示上调Smad4通过下调B连环蛋白(B—catenin)的表达,直接抑制WNT/B—catenin信号的激活,同时增加E一钙黏蛋白(E—cad)表达,降低B连环蛋白/T细胞因子(B—catenin/TCF)靶基因转录活性,如claudin一1和MMP一7的基因¨。,而xu等通过1,25(OH):维生素D,对结肠癌细胞SW480的E—cad表达影响研究认为1,25(OH):维生素D,通过影响B—catenin核定位上调E—cad表达,并抑制B—catenin/TCF转录活性,TCF—I蛋白的表达¨o;另外l,25(OH)2维生素D,能够增加DDK一1的转录,经翻译后成为writ抑制因子,使得阻断WNT/13一eatenin信号受体复合物的形成哺】。在前列腺癌细胞LNCAP研究中证实1,·76·万方数据体(VDR/RXR)复合体作用于BP3一维生素D,反应元件(BP3一VDRE),在转录水平直接激活IGFBP一3表达"。;而IGFBP一3调节IGFs的循环和活性。用IGF一1R抑制剂和刺激剂对结肠癌细胞HT29和前列腺癌细胞LACZ研究证实IGF一1R信号系统的激活促进磷酸酰肌醇一3激酶/蛋白激酶一1(P13一K/Akt一1)信号系统激活和MMP一7的表达¨0。。塞莱昔布也可通过这两通路的抑制MMP一7表达。Maier等在塞莱昔布作用人Caco一2结肠癌细胞研究显示塞莱昔布降低p—catenin的表达水平,并下调p—DNA结合活性,抑制其目的基因26Cells3.塞莱昔布和l,25(OH):维生素D,协同抑制HT29细胞MMP一7表达:塞莱昔布协同1,25(OH):MMP一7表达机制尚不完全清楚,可能与塞莱昔布上调VDR及E—cad表达,而l,25(OH)2维生素D,抑的核内聚集则上调COX一2表达,两种效应均与和IGF一2一IGFBP一3复合体¨玑”1。4.塞莱昔布和1,25(OH):维生素D,联用协同25(OH):维生素D,通过维生素D受体/维甲酸X受catenin/TCF/LefMMP一7基因转录…’。塞莱昔布干预Colon研究证实塞莱昔布减低IGF一1R的表达,降低IGF一2对细胞的增生和侵袭效应,从而抑制IGFs/IGF—IRAxis…。维生素D,在体外协同抑制结肠癌细胞株HT29的制COX一2表达有关。通过对肺非小细胞癌细胞A549和H157的研究显示。COX一2上调snail表达,而snail蛋白下调E—cad表达水平,用塞莱昔布干预后E—cad表达增加,另外在用结肠癌细胞SW480和HT29研究显示Snaill和Snail2通过不同途径下调VDR的表达¨L“。。Araki等基因转染对结肠癌细胞研究发现APC诱导下调COX一2表达,而B—cateninWNT信号通路调节COX一2基因转录有关¨引。MMP一7还可酶解IGFBPs,在结肠癌细胞HT29和SW837研究显示MMP一7酶解IGF一1一IGFBP一2医学研究杂志2010年10月第39卷第10期对5一FU化疗增效机制:塞莱昔布和1,25(OH):维生素D,联用增强5一FU对HT29细胞株化疗效应,其机制尚不完全清楚,Houghton等研究认为5一FU对结肠癌细胞促凋亡作用之一是通过Fas通路发挥凋亡作用¨7|。塞莱昔布和1,25(OH):维生素D,在5一FU存在或不存在下协同抑制结肠癌细胞株HT29的MMP一7表达。降低MMPs(如MMP一3,一7,)表达水平可导致细胞表面FasL的表达增加是因为降低FasL剪切体(即s—Fas由MMPs酶解作用从细胞表面脱落而成)水平¨引。死亡蛋白FasLigand(FasL或CD95),从细胞表面脱落促进凋亡抵抗,不管FasL的来源和活性,肿瘤细胞对它都是不敏感的,从而降低了凋亡的效能¨91。两药联用协同对5一Fu的增敏作用,其机制可能通过抑制MMP一7表达,降低其对细胞表面Fas的酶解作用,抑制结肠癌细胞增生和促进凋亡,从而对5一Fu化疗起增敏作用。总之研究显示塞莱昔布联合1,25(OH):维生素D,对5一Fu抑制结肠癌细胞株HT29体外增生有协同作用,从而降低单药使用的药物剂量,降低药物不良反应,提高单一药物化疗的敏感性,为临床化疗提供新手段。参考文献1NiuGuangfeng,LiaoZhiehao,CaiLin,eta1.TheCombinedEffectsofCelecoxibandMinocyclineHydrochlorideInhibitingtheOsseousMetastasisofBreastCancerinNudeMice[J].CancerBiotherapy&Radiopharmaceuticals,2008,4(23):469—4762TaghizadehF,TangMJ,TaiIT.SynergismbetweenvitaminDandsecretedproteinacidicandrichincysteine—inducedapoptosisandgrowthinhibitionresultsinincreasedsusceptibilityoftherapy·-resist-·colorectalcellschemotherapy[J].MolCancerTher,2007,6(1):309—3173何雪琦,鲍扬漪,孙昕,等.1,25一二羟维生素D,联合塞莱昔布对乳腺癌细胞株Hs578T生长及凋亡的影响[J].医学研究杂志,2008,27(8):66—684戴体俊.合并用药的定量分析[J].中国药理学通报,1998,14(1):479—4805Masanori1,HiroyukiY,YasusniA,cta1.Roleofmatrixmetallopmtei-nase一7(matfilysin)inhumaninvasion,apoptosis,growthandangiogenesis[J].ExpBiolMed,2006,231:20—276TianXiaoxiao.DuHao,FuXiangsheng,eta1.Smad4restorationleadssuppressionofWnt/13一cateninsignalingactivityandmigrationcapacityinhumancoloncarcinomacells[J].BiochemicalandRio-physicalResearchCommunications,2009,380:478—4837XuHaibo,1CannMM。IZhangZhiyu。cta1.VitaminDReceptor万方数据·论善·ModulatestheNeoplasticPhenotypeThroughAntagonisticGrowthRegulatorySignals[J].MolecularCarcinogenesis。2009,48:758—7728AguileraO,PensC,GarciaJM,eta1.TheWNTantagonistDICK.KOPF一1geneisinducedby1a,25一dihydroxyvitaminD,associatedthedifferentiationofhumancoloncells[J】.Carcinogenesis,2007,28(9):1877—18849PengLihong,MalloyPJ,FeldmanD.IdentificationofFunctionalVitaminDResponseElementintheHumanInsulin—LikeGrowthFactorBindingProtein一3Promoter[J].MolecularEndocrinology.2004.18(5):1109一111910ShimizuM,DegnchiA,HaraY,etu1.EGCGinhibitsactivationoftheinsulin··likegrowthfactor·-1receptorinhumancolonceils[J].BiochemicalandBiophysicalResearchCommunications.2005,334:947—95311MaierTJ,JanssenA,SchmidtR,eta1.Targetingthebeta—catenin/APCpathway:anovelmechanismexplainthecyclooxygenase一2一independentanticarcinogeniceffectsofcelecoxibinhumancoloncinomacells[J].TheFASEBJournal,2005,9:1—2512YasumaruM,TsujiS,TsujiiM,eta1.InhibitionofAngiotensinIIAc—tivityEnhancedtheAntitumorEffectofCyclooxygenase一2lnhibitorsviaInsulin—LikeGrowthFactorIReceptorPathway[J].CancerRe-search,2003。63:6726—673413DohadwalaM,YangSC,LuoJ,eta1.Cyclooxygenase一2一Depend—RegulationofE—Cadherin:ProstaglandinE2InducesTranscrip·tionalRepressorsZEBIandSnailinNon—SmallCellLungCancer[J].CancerRes,2006,66(10):5338—534514Mar?’aJesu’sLarriba,EsterMartl’n—Villar,JoseMiguelGarcl’a,a1.Snail2cooperateswithSnaillintherepressionofvitaminDceptorincoloncancer[J].Carcinogenesis,2009,30(8):1459—146815ArakiY,OkamuraS,Hus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作者:作者单位:刊名:英文刊名:年,卷(期):被引用次数:
孙根林, 鲍扬漪, Sun Gen-lin, Bao Yang-yi安徽省合肥市第一人民医院肿瘤科,230061医学研究杂志
JOURNAL OF MEDICAL REASERCH2010,39(10)0次
1.Niu Guangfeng,Liao Zhichao,Cai Lin,et al.The Combined Effects of Celecoxib and MinocyclineHydrochloride on Inhibiting the Osseous Metastasis of Breast Cancer in Nude Mice[J].CancerBiotherapy & Radiopharmaceuticals,2008,4(23):469-476
2.Taghizadeh F,Tang M J,Tai I T.Synergism between vitamin D and secreted protein acidic and rich incysteine–induced apoptosis and growth inhibition results in increased susceptibility of therapy-resistant colorectal cancer cells to chemotherapy[J].Mol Cancer Ther,2007,6(1):309-317
3.何雪琦,鲍扬漪,孙昕,等.1,25-二羟维生素D3联合塞莱昔布对乳腺癌细胞株Hs578T生长及凋亡的影响[J].医学研究杂志,2008,27(8):66-68
4.戴体俊.合并用药的定量分析[J].中国药理学通报,1998,14(1):479-480
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7.Xu Haibo,1 Cann M M,1 Zhang Zhiyu,et al.Vitamin D Receptor Modulates the Neoplastic PhenotypeThrough Antagonistic Growth Regulatory Signals[J].Molecular Carcinogenesis,2009,48:758-7728.Aguilera O,Pena C,Garcia J M,et al.The WNT antagonist DICKKOPF-1 gene is induced by 1a,25-dihydroxyvitamin D3 associated to the differentiation of human colon cancercells[J].Carcinogenesis,2007,28(9):1877-1884
9.Peng Lihong,Malloy P J,Feldman D.Identification of a Functional Vitamin D Response Element in theHuman Insulin-Like Growth Factor Binding Protein-3 Promoter[J].MolecularEndocrinology,2004,18(5):1109-1119
10.Shimizu M,Deguchi A,Hara Y,et al.EGCG inhibits activation of the insulin-like growth factor-1receptor in human colon cancer cells[J].Biochemical and Biophysical ResearchCommunications,2005,334:947-953
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12.Yasumaru M,Tsuji S,Tsujii M,et al.Inhibition of Angiotensin II Activity Enhanced the AntitumorEffect of Cyclooxygenase-2 Inhibitors via Insulin-Like Growth Factor I Receptor Pathway[J].CancerResearch,2003,63:6726-6734
13.Dohadwala M,Yang S C,Luo J,et al.Cyclooxygenase-2–Dependent Regulation of E-Cadherin:Prostaglandin E2 Induces Transcriptional Repressors ZEB1and Snail in Non–Small Cell LungCancer[J].Cancer Res,2006,66 (10):5338-5345
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16.Miyamoto S,Nakamura M,Yano K,et al.Matrix metalloproteinase-7 triggers the matricrine action ofinsulin-like growth factor-II via proteinase activity on insulin-like growth factor binding protein2in the extracellular matrix[J].Cancer Sci,2007,98 (5):685-691
17.Houghton J A,Harwood F G,Tillman D M.Thymineless death in colon carcinoma cells is mediated viaFas signaling[J].Proc.Natl.Acad Sci USA,1997,94:8144-8149
18.Gorelik E,Robert P.Edwards R P,Feng Xin,etal.IL-12 receptor-mediated upregulation of FasL inhuman ovarian carcinoma cells[J].Int J Cancer,2004,112:620-627
19.Cleavage of CD95 by matrix metalloproteinase-7 induces apoptosis resistance in tumourcells[J].Oncogene,2004,23:3732-3736
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