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Duplex micro RNAs assay based on target-triggered universal reporter hybridization 被引量:1

Duplex micro RNAs assay based on target-triggered universal reporter hybridization
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摘要 In this paper, we designed and evaluated a duplex detection strategy for micro RNAs(mi RNAs) using universal probe-based target-triggered double hybridization and fluorescent microsphere-based assay system(x MAP array). In the absence of target mi RNA, reporter DNA cannot hybridize stably with the immobilized capture DNA due to its low melting temperature. Only after adding target mi RNA, can reporter probe hybridize with capture probe to form a stable three-component complex. This targettriggered stable hybridization makes this method possible for highly selective and sensitive detection of multiple mi RNAs. We exemplified a quantitative detection of duplex mi RNAs with a limit of detection of40 p M. The x MAP array platform holds the potential of extending this approach to simultaneous detection of up to 100 mi RNA targets. Considering the simplicity, rapidity and multiplexing, this work promised a potential detection of multiple mi RNA biomarkers for early disease diagnosis and prognosis. In this paper, we designed and evaluated a duplex detection strategy for micro RNAs(mi RNAs) using universal probe-based target-triggered double hybridization and fluorescent microsphere-based assay system(x MAP array). In the absence of target mi RNA, reporter DNA cannot hybridize stably with the immobilized capture DNA due to its low melting temperature. Only after adding target mi RNA, can reporter probe hybridize with capture probe to form a stable three-component complex. This targettriggered stable hybridization makes this method possible for highly selective and sensitive detection of multiple mi RNAs. We exemplified a quantitative detection of duplex mi RNAs with a limit of detection of40 p M. The x MAP array platform holds the potential of extending this approach to simultaneous detection of up to 100 mi RNA targets. Considering the simplicity, rapidity and multiplexing, this work promised a potential detection of multiple mi RNA biomarkers for early disease diagnosis and prognosis.
机构地区 School of Pharmacy
出处 《Journal of Pharmaceutical Analysis》 SCIE CAS CSCD 2018年第4期265-270,共6页 药物分析学报(英文版)
基金 financially supported by the National Science Foundation of China (Grant No. 21575029)
关键词 xMAP array Multiple microRNAs Target-triggered Universal reporter xMAP array Multiple microRNAs Target-triggered Universal reporter
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