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Qing Y, Fang H, Yang Y, Liao Y, Li H, Wang Z, Du J. Enzyme-Assisted Amplification and Copper Nanocluster Fluorescence Signal-Based Method for miRNA-122 Detection. BIOSENSORS 2023; 13:854. [PMID: 37754088 PMCID: PMC10526218 DOI: 10.3390/bios13090854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 08/15/2023] [Accepted: 08/26/2023] [Indexed: 09/28/2023]
Abstract
At present, a large number of studies have demonstrated that miRNAs can be used as biological indicators for the diagnosis and treatment of diseases such as tumours and cancer, so it is important to develop a new miRNA detection platform. In this work, miRNA-122 is used as the basis for targeting detection agents. We have designed an unlabelled DNA1 that undergoes partial hybridisation and has a 20 T base long strand. The fluorescent signal in this experiment is derived from copper nanoclusters (CuNCs) generated on the circular T-long strand of DNA1. At the same time, DNA1 is able to react with miRNA-122 and achieve hydrolysis of the part bound to miRNA-122 via the action of nucleic acid exonuclease III (Exo III), leaving a part of the DNA, called DNA3, while releasing miRNA-122 to participate in the next reaction, thus achieving circular amplification. DNA3 is able to react with DNA2, which is bound to streptavidin magnetic beads (SIBs) and separated from the reaction solution via the application of a magnetic field. Overall, this is a fluorescence signal reduction experiment, and the strength of the fluorescence signal from the copper nanoclusters can determine whether the target miRNA-122 is present or not. The degree of fluorescence reduction indicates how much DNA1, and thus the amount of target miRNA-122, has been hydrolysed. By evaluating the variations in the fluorescence signal under optimised conditions, we discovered that this method has good sensitivity, with a detection limit as low as 0.46 nM, better than many other previous works on fluorescence signal-based biosensors for miRNA detection. This technique offers high discrimination and selectivity and can serve as a persuasive reference for early diagnosis.
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Affiliation(s)
| | | | | | | | | | | | - Jie Du
- State Key Laboratory of Marine Resource Utilization in South China Sea, College of Materials Science and Engineering, Hainan University, Haikou 570228, China; (Y.Q.); (H.F.); (Y.Y.); (Y.L.); (H.L.); (Z.W.)
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Zheng C, Hu X, Sun S, Zhu L, Wang N, Zhang J, Huang G, Wang Y, Huang X, Wang L, Shen Z. Hairpin allosteric molecular beacons-based cascaded amplification for effective detection of lung cancer-associated microRNA. Talanta 2022; 244:123412. [DOI: 10.1016/j.talanta.2022.123412] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 02/07/2022] [Accepted: 03/25/2022] [Indexed: 12/25/2022]
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Catalytic hairpin assembly as cascade nucleic acid circuits for fluorescent biosensor: design, evolution and application. Trends Analyt Chem 2022. [DOI: 10.1016/j.trac.2022.116582] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Chen X, Deng Y, Cao G, Xiong Y, Huo D, Hou C. Ultra-sensitive MicroRNA-21 detection based on multiple cascaded strand displacement amplification and CRISPR/Cpf1 (MC-SDA/CRISPR/Cpf1). Chem Commun (Camb) 2021; 57:6129-6132. [PMID: 34038492 DOI: 10.1039/d1cc01938d] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
MicroRNA-21 (miR-21) has been considered as a potential biomarker for cancer diagnosis and prognosis due to its high expression in tumors. Here, an analytical method which integrates the multiple cascaded strand displacement amplification and CRISPR/Cpf1 (MC-SDA/CRISPR/Cpf1) was proposed to ultra-sensitively detect it.
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Affiliation(s)
- Xiaolong Chen
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400044, P. R. China.
| | - Yuanyi Deng
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400044, P. R. China.
| | - Gaihua Cao
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400044, P. R. China.
| | - Yifan Xiong
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400044, P. R. China.
| | - Danqun Huo
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400044, P. R. China. and Chongqing Key Laboratory of Bio-perception & Intelligent Information Processing, School of Microelectronics and Communication Engineering, Chongqing University, Chongqing, 400044, P. R. China
| | - Changjun Hou
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400044, P. R. China. and Chongqing Key Laboratory of Bio-perception & Intelligent Information Processing, School of Microelectronics and Communication Engineering, Chongqing University, Chongqing, 400044, P. R. China
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Jiang D, Tian Y, Zhang Y, Lu X, Xiao D, Zhou C. One-step fast and label-free imaging array for multiplexed detection of trace avian influenza viruses. Anal Chim Acta 2021; 1171:338645. [PMID: 34112438 DOI: 10.1016/j.aca.2021.338645] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Revised: 05/11/2021] [Accepted: 05/12/2021] [Indexed: 12/30/2022]
Abstract
Rapid and low-cost diagnosis of multiple infectious diseases is of great significance especially in densely populated or resource-constrained settings. Herein, we developed a one-step fast and label-free imaging array for multiplexed detection of trace avian influenza virus (AIV) DNA biomarkers. By designing a series of specific and efficient catalytic hairpin assembly (CHA) amplification reactions and utilizing thioflavin T, a specific G-quadruplex fluorescence probe, three subtypes of AIV DNA biomarkers (H1N1, H7N9 and H5N1) were simultaneously and quickly detected within only 20 min, which just needed a small reagent volume of 50 μL and a smartphone instead of a spectrometer. With the combination of fluorescence imaging output and grey-level analysis, the array sensor can be on-site with the limit of detection of 136 pM, 141 pM and 129 pM for H1N1, H7N9 and H5N1, respectively. The imaging array also displayed good mismatch discrimination, excellent anti-interference, and real sample application. In view of its advantages of fast detection, low cost and multiplexed analysis, the imaging array is expected to have potential applications for early infectious disease diagnosis in resource-constrained settings.
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Affiliation(s)
- Dagang Jiang
- College of Chemistry, Sichuan University, Chengdu, 610064, PR China
| | - Yafei Tian
- College of Chemistry, Sichuan University, Chengdu, 610064, PR China
| | - Yujiao Zhang
- College of Chemistry, Sichuan University, Chengdu, 610064, PR China
| | - Xueyun Lu
- College of Chemistry, Sichuan University, Chengdu, 610064, PR China
| | - Dan Xiao
- College of Chemistry, Sichuan University, Chengdu, 610064, PR China
| | - Cuisong Zhou
- College of Chemistry, Sichuan University, Chengdu, 610064, PR China.
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MnO 2 nanosheet-mediated target-binding-induced FRET strategy for multiplexed microRNAs detection and imaging in living cells. Talanta 2021; 226:122202. [PMID: 33676722 DOI: 10.1016/j.talanta.2021.122202] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 01/27/2021] [Accepted: 02/03/2021] [Indexed: 01/22/2023]
Abstract
In the regulatory network, miRNAs play a regulatory role in a cooperative or antagonistic manner. Simultaneous accurate detection and imaging of multiplexed miRNAs in living cells are of great significance for miRNA-associated biological research and disease diagnosis and treatment. Herein, a MnO2 nanosheet-mediated target-binding-induced fluorescence resonance energy transfer (FRET) strategy was developed for detection and imaging of multiplexed miRNAs in living cells. Two pairs of DNA probes (P1-AF 488/P1'-Cy3 and P2-AF 488/P2'-AF 594) contained the complementary sequence to target miRNAs (miRNA-373 and miRNA-96) and labelled with different fluorescence dyes were designed. They were adsorbed onto MnO2 nanosheets by physisorption to form DNA/MnO2 nanocomposite probes. When the DNA/MnO2 nanocomposite probes were taken up by cells, the MnO2 nanosheets were reduced by intracellular glutathione, accompanying the release of DNA probe pairs. Then the DNA probe pairs specifically recognized and combined with miRNA-373 and miRNA-96 to form stable duplexes, respectively, bringing labelled fluorophores into close proximity to occur FRET. Based on this, the simultaneous imaging of miRNA-373 and miRNA-96 in MDA-MB-231 and L02 cells was successfully implemented. The results displayed a higher expression level of target miRNAs in MDA-MB-231 cells compared to L02 cells. The changes in expression levels of miRNA-96 induced by anti-miRNA-96 or mimics in MDA-MB-231 cells could also be monitored. In addition, the ratiometric detections of multiplexed miRNAs were achieved by utilizing the DNA probe pairs. The proposed strategy provides an alternative method for simultaneous accurate detection and imaging of multiplexed miRNAs and has potential application in biomedical applications.
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Fan Y, Liu Y, Zhou Q, Du H, Zhao X, Ye F, Zhao H. Catalytic hairpin assembly indirectly covalent on Fe 3O 4@C nanoparticles with signal amplification for intracellular detection of miRNA. Talanta 2020; 223:121675. [PMID: 33303136 DOI: 10.1016/j.talanta.2020.121675] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 09/08/2020] [Accepted: 09/14/2020] [Indexed: 12/22/2022]
Abstract
Fluorescence resonance energy transfer, a promising method for in situ imaging of miRNA in living cells, has intrinsic limitation on sensitivity and selectivity. Herein, a fluorescent amplification strategy based on catalyzed hairpin assembly indirectly covalent on Fe3O4@C nanoparticles via short single-stranded DNA was investigated for cellular miRNA detection in living cells, integrating non-enzyme target-active releasing for amplifying the signal output, highly quenching efficiency of Fe3O4@C nanoparticles with low background, ssDNA assisted fluorescent group-fueled chain releasing from Fe3O4@C nanoparticles with enhanced fluorescence response. The designed platform exhibits highly sensitive in a wide linear concentration range of 0.450 pM-190 pM and is highly specific for miRNA-20a detection with the ability of discriminating one mistake base. Additionally, the CHA-Fe3O4@C was successfully applied in imaging visualization of miRNA-20a in the living cell. The strategy provides a promising bioassay approach for clinical research.
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Affiliation(s)
- Yaofang Fan
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, China), School of Environmental Science and Technology, Dalian University of Technology, Dalian, 116024, China
| | - Yanming Liu
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, China), School of Environmental Science and Technology, Dalian University of Technology, Dalian, 116024, China
| | - Qihui Zhou
- Institute for Translational Medicine, Department of Stomatology, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China
| | - Hao Du
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, China), School of Environmental Science and Technology, Dalian University of Technology, Dalian, 116024, China
| | - Xueyang Zhao
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, China), School of Environmental Science and Technology, Dalian University of Technology, Dalian, 116024, China
| | - Fei Ye
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, China), School of Environmental Science and Technology, Dalian University of Technology, Dalian, 116024, China
| | - Huimin Zhao
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, China), School of Environmental Science and Technology, Dalian University of Technology, Dalian, 116024, China.
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