Trigging stepwise-strand displacement amplification lights up numerous G-quadruplex for colorimetric signaling of serum microRNAs

Summary: MicroRNAs (miRNAs) play an important biomarker in various biological processes, especially cancer related, yet economic, simple, sensitive and specific methods for miRNA determination are still challenging. In this study, we have developed stepwise-strand displacement amplification (S-SDA)-...

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Main Authors: Huo Xu, Fenglin Yang, Danlong Chen, Weilin Ye, Guohui Xue, Lee Jia
Format: Article
Language:English
Published: Elsevier 2023-04-01
Series:iScience
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S258900422300408X
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author Huo Xu
Fenglin Yang
Danlong Chen
Weilin Ye
Guohui Xue
Lee Jia
author_facet Huo Xu
Fenglin Yang
Danlong Chen
Weilin Ye
Guohui Xue
Lee Jia
author_sort Huo Xu
collection DOAJ
description Summary: MicroRNAs (miRNAs) play an important biomarker in various biological processes, especially cancer related, yet economic, simple, sensitive and specific methods for miRNA determination are still challenging. In this study, we have developed stepwise-strand displacement amplification (S-SDA)-based colorimetric sensing platform for let-7a miRNA detection in clinical serum samples. Our results demonstrated that the developed S-SDA-based method shows high sensitivity with a detection limit of 63.2 pM and a naked eye detection limit of 0.1 nM. Moreover, the S-SDA amplifier is able to discriminate target miRNAs from their mutants with high accuracy and specificity. With its high sensitivity and selectivity, this method successfully identified healthy individuals from patients with colon cancer by detecting let-7a miRNAs in serum. We believe the colorimetric analysis method will provide a new paradigm for the detection of miRNA with different abundance and show great potential for clinical application in biomedical analysis and early clinical diagnosis.
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spelling doaj.art-158cfcc024254bb78b46f75660ea580d2023-03-17T04:33:43ZengElsevieriScience2589-00422023-04-01264106331Trigging stepwise-strand displacement amplification lights up numerous G-quadruplex for colorimetric signaling of serum microRNAsHuo Xu0Fenglin Yang1Danlong Chen2Weilin Ye3Guohui Xue4Lee Jia5College of Materials and Chemical Engineering, Minjiang University, Fuzhou, Fujian, 350108, China; Corresponding authorCollege of Materials and Chemical Engineering, Minjiang University, Fuzhou, Fujian, 350108, ChinaCollege of Materials and Chemical Engineering, Minjiang University, Fuzhou, Fujian, 350108, ChinaCollege of Materials and Chemical Engineering, Minjiang University, Fuzhou, Fujian, 350108, ChinaDepartment of Clinical Laboratory, Jiujiang NO.1 People’s Hospital, Jiujiang, Jiangxi, 332000, ChinaCollege of Materials and Chemical Engineering, Minjiang University, Fuzhou, Fujian, 350108, ChinaSummary: MicroRNAs (miRNAs) play an important biomarker in various biological processes, especially cancer related, yet economic, simple, sensitive and specific methods for miRNA determination are still challenging. In this study, we have developed stepwise-strand displacement amplification (S-SDA)-based colorimetric sensing platform for let-7a miRNA detection in clinical serum samples. Our results demonstrated that the developed S-SDA-based method shows high sensitivity with a detection limit of 63.2 pM and a naked eye detection limit of 0.1 nM. Moreover, the S-SDA amplifier is able to discriminate target miRNAs from their mutants with high accuracy and specificity. With its high sensitivity and selectivity, this method successfully identified healthy individuals from patients with colon cancer by detecting let-7a miRNAs in serum. We believe the colorimetric analysis method will provide a new paradigm for the detection of miRNA with different abundance and show great potential for clinical application in biomedical analysis and early clinical diagnosis.http://www.sciencedirect.com/science/article/pii/S258900422300408XAnalytical chemistry applicationsDiagnostic technique in health technologyMedical device in health technology
spellingShingle Huo Xu
Fenglin Yang
Danlong Chen
Weilin Ye
Guohui Xue
Lee Jia
Trigging stepwise-strand displacement amplification lights up numerous G-quadruplex for colorimetric signaling of serum microRNAs
iScience
Analytical chemistry applications
Diagnostic technique in health technology
Medical device in health technology
title Trigging stepwise-strand displacement amplification lights up numerous G-quadruplex for colorimetric signaling of serum microRNAs
title_full Trigging stepwise-strand displacement amplification lights up numerous G-quadruplex for colorimetric signaling of serum microRNAs
title_fullStr Trigging stepwise-strand displacement amplification lights up numerous G-quadruplex for colorimetric signaling of serum microRNAs
title_full_unstemmed Trigging stepwise-strand displacement amplification lights up numerous G-quadruplex for colorimetric signaling of serum microRNAs
title_short Trigging stepwise-strand displacement amplification lights up numerous G-quadruplex for colorimetric signaling of serum microRNAs
title_sort trigging stepwise strand displacement amplification lights up numerous g quadruplex for colorimetric signaling of serum micrornas
topic Analytical chemistry applications
Diagnostic technique in health technology
Medical device in health technology
url http://www.sciencedirect.com/science/article/pii/S258900422300408X
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