基于电化学适体的测定与等温核酸扩增技术的
血液中癌症生物标志物的高灵敏度检测不仅是早期发现癌症的关键,而且还有助于临床医生确定最佳治疗方案并找到有效的治疗方法。为了量化与致癌作用相关的经过临床验证的生物标记物的微小变化,我们需要选择性受体和受体与生物标记物之间识别事件的信号放大策略。本文概述了基于适体的血液循环癌症生物标记物识别和等温核酸扩增平台与电化学读数的集成的最新进展,突出了这些新颖工具的潜力以及将这些测定法转化为临床实践所面临的挑战。
Abstract-摘要
Highlysensitivedetectionofcancerbiomarkersinbloodiskeynotonlytofindcanceratanearlystagebutalsotohelpclinicianstodecidethebesttreatmentplanandtofindhowwelltreatmentisworking.Toquantifythesmallchangesinclinicallyvalidatedbiomarkersassociatedwithcarcinogenesisbothselectivereceptorsandsignalamplificationstrategiesoftherecognitioneventbetweenthereceptorandthebiomarkerarehighlyindemand.Thisreportcoversthemostrecentdevelopmentsintheintegrationofaptamer-basedrecognitionofblood-circulatingcancerbiomarkersandisothermalnucleicacidamplificationplatformswithelectrochemicalreadout,highlightingthepotentialofthesenoveltools,andthechallengestotranslatetheseassaystotheclinicalpractice.
Figure-图片
Figure1.Schematicillustrationofaptamer-basedassaysincorporatingrollingcircleamplification(RCA).(A)Sandwichformat.(B)Target-inducedstranddisplacementassayswhereapartially
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