Evidence map›Paper›PMID 27257058›Full record

ArticleNucleic acids research2016

Asymmetric exponential amplification reaction on a toehold/biotin featured template: an ultrasensitive and specific strategy for isothermal microRNAs analysis.

Jun Chen, Xueqing Zhou, Yingjun Ma, Xiulian Lin, Zong Dai, Xiaoyong Zou

Abstract read
In one paragraph

Article in Nucleic acids research, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

17 citing papers in PubMed.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Jun ChenSchool of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China.
Xueqing ZhouSchool of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China.
Yingjun MaSchool of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China.
Xiulian LinCollege of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China.
Zong DaiSchool of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China daizong@mail.sysu.edu.cn.
Xiaoyong ZouSchool of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China SYSU-CMU Shunde International Joint Research Institute, Shunde, Guangdong 528300, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The sensitive and specific analysis of microRNAs (miRNAs) without using a thermal cycler instrument is significant and would greatly facilitate biological research and disease diagnostics. Although exponential amplification reaction (EXPAR) is the most attractive strategy for the isothermal analysis of miRNAs, its intrinsic limitations of detection efficiency and inevitable non-specific amplification critically restrict its use in analytical sensitivity and specificity. Here, we present a novel asymmetric EXPAR based on a new biotin/toehold featured template. A biotin tag was used to reduce the melting temperature of the primer/template duplex at the 5' terminus of the template, and a toehold exchange structure acted as a filter to suppress the non-specific trigger of EXPAR. The asymmetric EXPAR exhibited great improvements in amplification efficiency and specificity as well as a dramatic extension of dynamic range. The limit of detection for the let-7a analysis was decreased to 6.02 copies (0.01 zmol), and the dynamic range was extended to 10 orders of magnitude. The strategy enabled the sensitive and accurate analysis of let-7a miRNA in human cancer tissues with clearly better precision than both standard EXPAR and RT-qPCR. Asymmetric EXPAR is expected to have an important impact on the development of simple and rapid molecular diagnostic applications for short oligonucleotides.

Indexed as

Nucleic Acid ConformationBiotinDNA-Directed DNA PolymeraseFeasibility StudiesFemaleHumansLung NeoplasmsMicroRNAsNucleic Acid Amplification TechniquesTemplates, GeneticUterine Cervical NeoplasmsBiotinDNA-Directed DNA PolymeraseMicroRNAsmirnlet7 microRNA, human

Identifiers

PMID27257058
PMCPMC5009742

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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.