ArticleRSC advances2020
Dual signal amplification for microRNA-21 detection based on duplex-specific nuclease and invertase.
Article in RSC advances, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed, 16 citations in OpenAlex.
- The silent dialogue between cells: regulatory roles of non-coding RNAs in cardiovascular disease.Frontiers in cell and developmental biology · 2026Review
- Recent Developments in Personal Glucose Meters as Point-of-Care Testing Devices (2020-2024).Biosensors · 2024Review
- Magnetically Assisted Immobilization-Free Detection of microRNAs Based on the Signal Amplification of Duplex-Specific Nuclease.Biosensors · 2023Article
- Recent advances of using personal glucose meter as a biosensor readout for non-glucose targets.Current analytical chemistry · 2022Article
- New Uses for the Personal Glucose Meter: Detection of Nucleic Acid Biomarkers for Prostate Cancer Screening.Sensors (Basel, Switzerland) · 2020Article
Corrections and comments
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Authors and funding
5 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
MicroRNA-21 (miRNA-21) is a significant biomarker which is closely related to some kinds of diseases, such as cancer, cardiovascular disease and kidney disease. Therefore, the detection of miRNA-21 is of great importance and can provide essential information for disease diagnosis. In this study, we report a facile, sensitive assay for miRNA-21 detection using personal glucose meters (PGM). Biotinylated DNA strand linked invertase (Inv) is conjugated on the surface of streptavidin-coated magnetic beads (MBs) to form a MBs-DNA-Inv complex. Target miRNA-21 in the detection system is captured by the MBs-DNA-Inv probe through DNA/RNA hybridization. The duplex-specific nuclease (DSN) enzyme specifically cleaves the DNA to recycle the target miRNA and release invertase, thereby triggering the dual signal amplification and ensuring high sensitivity. Besides, we establish a linear relationship between PGM and different concentrations of miRNA-21 in the range of 10 to 200 pM. The limit of detection is 1.8 pM, which is more sensitive than some of the previous reports. In addition, the biosensor exhibits excellent sequence selectivity and single-base mutation can be discriminated. Moreover, the expression of miRNA-21 is confirmed in urine from mice by our method, which is in good accordance with the qRT-PCR result. Therefore, a dependable, low-cost strategy for the detection of miRNA has been established and it meets the latest analytical demands for miRNA determination that is suitable for the public.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.