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时间:2018-08-01
《ht1型组织芯片仪的研制和应用》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、HT1型组织芯片仪的研制和应用作者:杨军,苏宝山,赵世平,强磊【摘要】目的研制简单、快捷、使用方便的组织芯片仪,验证其性能。方法根据组织芯片制备原理设计HT1型组织芯片仪,该组织芯片仪由阵列孔受体蜡块成型器、组织挖取器、负压包埋仪和操作支架组成。采用一次成型技术,仅一次操作即可快速制备所需的阵列孔受体蜡块;采用负压包埋技术,既可将组织样本精确定位并固定于同一水平面,又可迅速抽除组织样本与受体蜡块阵列孔间残留气泡。结果使用HT1型组织芯片仪,可在数秒之内制备高质量阵列孔受体蜡块,构建一个容量为56例组织样本的TMAs蜡块仅需不到20
2、min,且组织样本排列规则,无漂浮、倒伏和移位现象,也无气泡残留。经HE及免疫组织化学染色证实,组织芯片中组织样本排列规则、结构完整、背景清晰,脱片率低(<1.0%±1.1%)。结论HT1型组织芯片仪是一款结构简单、使用方便、易于操作的高性价比组织芯片仪。【关键词】生物芯片;组织阵列(组织芯片);组织阵列仪ABSTRACT:ObjectiveTodesignanddevelopareliable,easetouseandcheaptissuemicroarryerformakingtissuemicroarrays,andd
3、iscussitscharacteristics.MethodsAccordingtothefactureprocedureandprincipleoftissuemicroarray12construction,HT1tissuemicroarrayerwasdesignedanddeveloped.Thetissuemicroarrayerconsistedofarecipientparaffinblockmoldingmachine,apunchneedle,anegativepressureembeddinginstrume
4、nt,andaspecialmanipulator.UsingHT1tissuemicroarrayer,thearrayholesinrecipientparaffinblockcouldbepunchedbysingleshapingtechniqueinoneactioninseveralseconds,whilenochappingwasguaranteed.DuringtheTMAsparaffinblockembeddingprocess,theremnantairbubblebetweenthetissuecylind
5、ersandarrayholesinrecipientparaffinblockcouldbeexhaustedrapidlyandcompletely.ResultsUsingHT1tissuemicroarrayer,anarrayholesrecipientparaffinblock(severaltoseveralhundredsholes)couldbemadeinseveralseconds.SeveralTMAsblockswith56tissuecylinders(1.5mmindiameter)wereconstru
6、ctedeasilyandquicklywithin20min.UnderHEandimmunostainingprocedures,thetissuecoreswerewellaligned,andorientationwasproperlydone.Thetissuecoresontheslidemaintainedintacthistologicalstructure.ThetissuestructureandbackgroundoftheHEandimmunostainingwereclear.Therewaslesssampl
7、eloss(thelossratewaslessthan1.0%±1.1%).ConclusionHT1tissuemicroarrayerisasimple,economicalandhighefficiency/cost(E/C)andeasytousedevice.12KEYWORDS:biochip;tissuemicroarray(tissuechip);tissuemicroarryer组织微阵列(tissuemicroarrays,TMAs),也称组织芯片(tissuechip,TC),以其具有原位分析的特殊优势而成
8、为病理学研究的新的技术平台[16]。TMAs已从手工制备发展到依赖半机械化和自动化组织芯片仪(tissuemicroarrayer)制备的水平。现有的TMAs制备策略和设备均采用单针打孔技术,因此,阵列孔
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