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Ultrasensitive detection of long non-coding RNAs based on duplex-specific nuclease-actuated cyclic enzymatic
Yan Zhang1, Xin-Yan Wang, Xianwei Su
1College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University, Jinan 250014, China. cyzhang@sdnu.edu.cn.
Abstract:
We develop a new fluorescent method for sensitive detection of long noncoding RNAs (lncRNAs) on the basis of duplex-specific nuclease-actuated cyclic enzymatic repairing-mediated signal amplification. This method exhibits high sensitivity with a detection limit of 0.081 fM, and it can accurately detect the endogenous lncRNA HOTAIR in cancer cells, providing a new approach to study the physiological function of lncRNAs in human diseases.
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