OALib Journal期刊
ISSN: 2333-9721
费用:99美元
|
|
|
三叶因子1表达与胃粘膜损伤及胃癌的关系
, PP. 1178-1180
Keywords: 三叶因子,tff1,胃粘膜保护,上皮重建,肿瘤抑制
Abstract:
目的测定三叶因子1在正常及病理条件下胃粘膜中的表达情况,探讨tff1在胃粘膜损伤修复及胃癌抑制中的作用及意义。方法应用免疫组化方法测定正常及不同病理条件下胃粘膜中tff1的表达情况,通过图像分析软件分析其阳性信号平均光密度值了解其表达情况。结果胃炎、胃溃疡及十二指肠球部溃疡患者tff1表达明显高于正常胃粘膜;多发/复合性溃疡患者tff1表达高于单发的消化性溃疡患者;胃溃疡患者与十二指肠球部溃疡患者、胃炎患者与单一消化性溃疡患者表达相比均无统计学差异;胃腺癌患者癌旁组织表达明显高于正常胃粘膜,而腺癌组织的表达强度则与癌组织的分化程度呈正比,分化程度愈低,表达愈弱,低分化腺癌无阳性表达,中、高分化腺癌表达略低于正常粘膜,但二者对比无统计学差异;食管鳞癌及癌旁组织均无阳性表达;各组男女对比均无统计学差异。结论tff1在胃炎及消化性溃疡中表达升高,且在多发/复合性溃疡中的表达较单发溃疡表达升高,即粘膜损伤越严重其表达越强,提示其在胃粘膜保护及促进上皮重建机制中具有一定的作用。tff1在癌旁组织中表达增强提示其可能与肿瘤抑制及分化机制有关,而在癌组织中表达减弱,且分化程度越低表达越弱可能与癌组织腺体及细胞破坏、tff1的分泌减少有关。
References
[1] | newtonjl.changesinuppergastrointestinalphysiologywithage[j].mechageingdev,2004,125:867-70.
|
[2] | wrightna,poulsonr,stampgw,etal.trefoilpeptidegeneexpressioningastrointestinalepithelialcellsininflammatorybowerdisease[j].gastroenterology,1993,104:12-20.
|
[3] | newtonjl,allena,westleybr,etal.thehumantrefoilpeptide,tff1,ispresentindifferentmolecularformsthatareintimatelyassociatedwithmucusinnormalstomach[j].gut,2000,46:312-20.
|
[4] | masiakowskip,breathnachr,blochj,etal.cloningofcdnasequencesofhormoneregulatedgenesfromthemcf-7humanbreastcancercellline[j].nuclacidsres,1982,10:7895-903.
|
[5] | chadwickmp,westleybr,mayfe,etal.homodimerizationandhetero-oligomerizationofthesingle-domaintrefoilproteinpnr-2/ps2throughcysteine58[j].biochemj,1997,327:117-23.
|
[6] | lefebvreo,wolfc,kedingerm,etal.themouseonep-domain(ps2)andtwop-domain(msp)genesexhibitdistinctpatternsofexpression[j].jcellbiol,1993,122:191-8.
|
[7] | ribierass,tomasettoc,riomc,etal.theps2/tff1trefoilfactor,frombasicresearchtoclinicalapplications[j].biochimibiophysacta,1998,1378:f61-77.
|
[8] | polshakovvi,williamsma,gargaroar,etal.high-resolutionsolutionstructureofhumanpnr-2/ps2:asingletrefoilmotifprotein[j].jmolbiol,1997,267:418-32.
|
[9] | playfordrj,ghoshs,mahmooda.growthfactorsandtrefoilpeptidesingastrointestinalhealthanddisease[j].curropinpharmacol,2004,4:567-71.
|
[10] | longmanrj,douthwaitej,sylvesterpa,etal.coordinatedlocalizationofmucinsandtrefoilpeptidesintheulcerassociatedcelllineageandthegastrointestinalmucosa[j].gut,2000,47:792-800.
|
[11] | lebefvreo,chenardmp,massonr,etal.gastricmucosaabnormalitiesandtumorigenesisinmicelackingtheps2trefoilprotein[j].science,1996,274:259-62.
|
[12] | calnandp,westleybr,mayfe,etal.thetrefoilpeptidetff1inhibitsthegrowthofthehumangastricadenocarcinomacelllineags[j].jpathol,1999,188:312-7.
|
Full-Text
|
|
Contact Us
service@oalib.com QQ:3279437679 
WhatsApp +8615387084133
|
|