101
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Yan L, Zhou J, Zheng Y, Gamson AS, Roembke BT, Nakayama S, Sintim HO. Isothermal amplified detection of DNA and RNA. MOLECULAR BIOSYSTEMS 2014; 10:970-1003. [PMID: 24643211 DOI: 10.1039/c3mb70304e] [Citation(s) in RCA: 282] [Impact Index Per Article: 28.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
This review highlights various methods that can be used for a sensitive detection of nucleic acids without using thermal cycling procedures, as is done in PCR or LCR. Topics included are nucleic acid sequence-based amplification (NASBA), strand displacement amplification (SDA), loop-mediated amplification (LAMP), Invader assay, rolling circle amplification (RCA), signal mediated amplification of RNA technology (SMART), helicase-dependent amplification (HDA), recombinase polymerase amplification (RPA), nicking endonuclease signal amplification (NESA) and nicking endonuclease assisted nanoparticle activation (NENNA), exonuclease-aided target recycling, Junction or Y-probes, split DNAZyme and deoxyribozyme amplification strategies, template-directed chemical reactions that lead to amplified signals, non-covalent DNA catalytic reactions, hybridization chain reactions (HCR) and detection via the self-assembly of DNA probes to give supramolecular structures. The majority of these isothermal amplification methods can detect DNA or RNA in complex biological matrices and have great potential for use at point-of-care.
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Affiliation(s)
- Lei Yan
- Department of Chemistry and Biochemistry, University of Maryland, College Park, MD 20742, USA.
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102
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Yan Z, Li Y, Zheng J, Zhou M. Electrogenerated chemiluminescence biosensing method for methyltransferase activity using tris(1, 10-phenanthroline) ruthenium-assembled graphene oxide. J Electroanal Chem (Lausanne) 2014. [DOI: 10.1016/j.jelechem.2014.08.022] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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103
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Chen J, Wang Y, Li W, Zhou H, Li Y, Yu C. Nucleic Acid-Induced Tetraphenylethene Probe Noncovalent Self-Assembly and the Superquenching of Aggregation-Induced Emission. Anal Chem 2014; 86:9866-72. [DOI: 10.1021/ac502496h] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Jian Chen
- State
Key Laboratory of Electroanalytical Chemistry, Changchun Institute
of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
| | - Yan Wang
- State
Key Laboratory of Electroanalytical Chemistry, Changchun Institute
of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
- University of the Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Wenying Li
- State
Key Laboratory of Electroanalytical Chemistry, Changchun Institute
of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
- University of the Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Huipeng Zhou
- State
Key Laboratory of Electroanalytical Chemistry, Changchun Institute
of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
| | - Yongxin Li
- State
Key Laboratory of Electroanalytical Chemistry, Changchun Institute
of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
| | - Cong Yu
- State
Key Laboratory of Electroanalytical Chemistry, Changchun Institute
of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
- University of the Chinese Academy of Sciences, Beijing 100049, P. R. China
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104
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Zong C, Wu J, Liu M, Yang L, Yan F, Ju H. Chemiluminescence imaging for a protein assay via proximity-dependent DNAzyme formation. Anal Chem 2014; 86:9939-44. [PMID: 25181362 DOI: 10.1021/ac502749t] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
An array-based chemiluminescence (CL) imaging method is presented for simple and high throughput detection of protein targets via the formation of a proximity-dependent DNAzyme to produce sensitive CL signal. The protein array is prepared by covalently immobilizing single-stranded guanine-rich nucleic acid 1-labeled antibody 1 (GDNA1-Ab1) or GDNA-thrombin aptamer subunit 1 (Apt-P1) as the capture probe on each sensing site on an aldehyde-functionalized disposable glass chip. In the presence of target protein, hemin, and another GDNA2-Ab2 or Apt-P2 probe, a sandwich complex among the protein and two probes can be formed to trigger the proximity assembly of GDNA1, hemin, and GDNA2, which leads to the formation of hemin-G-quadruplex DNAzyme. At different sensing sites, the DNAzyme-induced CL signals are simultaneously collected by a charge-coupled device for imaging readout of the sensing events. As a proof of concept, the proposed array-based CL imaging strategy is applied to detect carcinoembryonic antigen and thrombin and shows wide linear ranges over 4 and 5 orders of magnitude with the detection limits of 0.15 ng mL(-1) and 0.49 pM, respectively. Benefiting from the one-step proximity-dependent DNAzyme formation, the assay method is extremely simple and can be carried out within 40 min. By using different probes, the array can be easily used to detect more protein analytes. The advantages of easy operation, short assay time, good sensitivity, and versatility make it a promising candidate for point-of-care testing and commercial application.
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Affiliation(s)
- Chen Zong
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University , Nanjing, Jiangsu 210093, P.R. China
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105
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Gao Y, Li B. Exonuclease III-Assisted Cascade Signal Amplification Strategy for Label-Free and Ultrasensitive Chemiluminescence Detection of DNA. Anal Chem 2014; 86:8881-7. [DOI: 10.1021/ac5024952] [Citation(s) in RCA: 113] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Yuan Gao
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi’an 710062, China
| | - Baoxin Li
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi’an 710062, China
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106
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Li Y, Yan Z, Zheng J, Qi H. Label-free and amplified electrogenerated chemiluminescence biosensing method for the determination of DNA methyltransferase activity using signal reagent-assembled graphene oxide. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2014.06.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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107
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Liu S, Cheng C, Liu T, Wang L, Gong H, Li F. Highly sensitive fluorescence detection of target DNA by coupling exonuclease-assisted cascade target recycling and DNAzyme amplification. Biosens Bioelectron 2014; 63:99-104. [PMID: 25063920 DOI: 10.1016/j.bios.2014.07.023] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2014] [Revised: 07/01/2014] [Accepted: 07/08/2014] [Indexed: 12/19/2022]
Abstract
Because of the intrinsic importance of nucleic acid as bio-targets, the simple and sensitive detection of nucleic acid is very essential for biological studies and medical diagnostics. Herein, a simple, isothermal and highly sensitive fluorescence detection of target DNA was developed with the combination of exonuclease III (Exo III)-assisted cascade target recycling and DNAzyme amplification. A hairpin DNA probe was designed, which contained the 3'-protruding DNA fragment as target recognition unit, the caged DNA fragment in the stem region as target analogue, and the caged 8-17 DNAzyme sequence in the loop region as signal response unit. Upon sensing of target DNA, the 3'-strand of hairpin DNA probe could be stepwise removed by Exo III, accompanied by the releasing of target DNA and autonomous generation of new target analogues for the successive hybridization and cleavage process. Simultaneously, the 8-17 DNAzyme unit could be exponentially released from this hairpin DNA probe and activated for the cyclic cleavage toward the ribonucleotide-containing molecular beacon substrate, inducing a remarkable fluorescence signal amplification for target detection. A low detection limit of 20 fM with an excellent selectivity toward target DNA could be achieved. The developed cascade amplification strategy may be further extended for the detection of a wide spectrum of analytes including protein and biological small molecules by combining DNA aptamer technology.
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Affiliation(s)
- Shufeng Liu
- Key Laboratory of Sensor Analysis of Tumor Marker, Ministry of Education, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China.
| | - Chuanbin Cheng
- Key Laboratory of Sensor Analysis of Tumor Marker, Ministry of Education, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China
| | - Tao Liu
- Key Laboratory of Sensor Analysis of Tumor Marker, Ministry of Education, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China
| | - Li Wang
- Key Laboratory of Sensor Analysis of Tumor Marker, Ministry of Education, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China.
| | - Hongwei Gong
- Key Laboratory of Sensor Analysis of Tumor Marker, Ministry of Education, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China
| | - Feng Li
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, People's Republic of China.
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108
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Sensitive detection of DNA methyltransferase activity based on rolling circle amplification technology. CHINESE CHEM LETT 2014. [DOI: 10.1016/j.cclet.2014.05.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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109
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Zhang J, Li B. Enhanced chemiluminescence of CdTe quantum dots-H₂O₂ by horseradish peroxidase-mimicking DNAzyme. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 125:228-233. [PMID: 24556131 DOI: 10.1016/j.saa.2014.01.111] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2013] [Revised: 01/19/2014] [Accepted: 01/22/2014] [Indexed: 06/03/2023]
Abstract
In this study, it was found that horseradish peroxidase (HRP)-mimicking DNAzyme could effectively enhance the CL emission of CdTe quantum dots (QDs)-H2O2 system, whereas HRP could not enhance the CL intensity. The CL enhancement mechanism was investigated, and the CL enhancement was supposed to originate from the catalysis of HRP-mimicking DNAzyme on the CL reaction between CdTe QDs and H2O2. Meantime, compared with CdTe QDs-H2O2 CL system, H2O2 concentration was markedly decreased in QDs-H2O2-HRP-mimicking DNAzyme CL system, improving the stability of QDs-H2O2 CL system. The QDs-based CL system was used to detect sensitively CdTe QDs and HRP-mimicking DNAzyme (as biologic labels). This work gives a path for enhancing CL efficiency of QDs system, and will be helpful to promote the step of QDs application in various fields such as bioassay and trace detection of analyte.
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Affiliation(s)
- Junli Zhang
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an 710062, China
| | - Baoxin Li
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an 710062, China.
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110
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Jiang HX, Kong DM, Shen HX. Amplified detection of DNA ligase and polynucleotide kinase/phosphatase on the basis of enrichment of catalytic G-quadruplex DNAzyme by rolling circle amplification. Biosens Bioelectron 2014; 55:133-8. [DOI: 10.1016/j.bios.2013.12.001] [Citation(s) in RCA: 82] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2013] [Revised: 11/24/2013] [Accepted: 12/01/2013] [Indexed: 12/01/2022]
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111
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Wang Y, Chen J, Chen Y, Li W, Yu C. Polymer-Induced Perylene Probe Excimer Formation and Selective Sensing of DNA Methyltransferase Activity through the Monomer–Excimer Transition. Anal Chem 2014; 86:4371-8. [DOI: 10.1021/ac500195u] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Yan Wang
- State
Key Laboratory of Electroanalytical Chemistry, Changchun Institute
of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s Republic of China
- University of the Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Jian Chen
- State
Key Laboratory of Electroanalytical Chemistry, Changchun Institute
of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s Republic of China
| | - Yang Chen
- State
Key Laboratory of Electroanalytical Chemistry, Changchun Institute
of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s Republic of China
| | - Wenying Li
- State
Key Laboratory of Electroanalytical Chemistry, Changchun Institute
of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s Republic of China
- University of the Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Cong Yu
- State
Key Laboratory of Electroanalytical Chemistry, Changchun Institute
of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s Republic of China
- University of the Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
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112
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Liu S, Lin Y, Wang L, Liu T, Cheng C, Wei W, Tang B. Exonuclease III-aided autocatalytic DNA biosensing platform for immobilization-free and ultrasensitive electrochemical detection of nucleic acid and protein. Anal Chem 2014; 86:4008-15. [PMID: 24655032 DOI: 10.1021/ac500426b] [Citation(s) in RCA: 131] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Homogenous electrochemical biosensor has attracted substantial attention owing to its simplicity, rapid response, and improved recognition efficiency compared with heterogeneous biosensor, but the relatively low detection sensitivity and the limited detection analytes prohibit its potential applications. To address these issues, herein, a simple, rapid, isothermal, and ultrasensitive homogeneous electrochemical DNA biosensing platform for target DNA and protein detection has been developed on the basis of an exonuclease III (Exo III)-aided autocatalytic target recycling strategy. A ferrocene-labeled hairpin probe (HP1) is ingeniously designed, which contains a protruding DNA fragment at 3'-termini as the recognition unit for target DNA. Also, the DNA fragment that could be used as secondary target analogue was introduced, but it was caged in the stem region of HP1. In the presence of target DNA, its recognition with the protruding fragment of HP1 triggered the Exo III cleavage process, accompanied with the target recycling and autonomous generation of secondary target analogues. This accordingly resulted into the autonomous accumulation of ferrocene-labeled mononucleotide, inducing a distinct increase in the electrochemical signal owing to its elevated diffusivity toward indium tin oxide (ITO) electrode surface. The autocatalytic biosensing system was further extended for protein detection by advising an aptamer hairpin switch with the use of thrombin as a model analyte. The current developed autocatalytic and homogeneous strategy provided an ultrasensitive electrochemical detection of DNA and thrombin down to the 0.1 and 5 pM level, respectively, with a high selectivity. It should be further used as a general autocatalytic and homogeneous strategy toward the detection of a wide spectrum of analytes and may be associated with more analytical techniques. Thus, it holds great potential for the development of ultrasensitive biosensing platform for the applications in bioanalysis, disease diagnostics, and clinical biomedicine.
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Affiliation(s)
- Shufeng Liu
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Normal University , Jinan, Shandong 250014, P. R. China
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113
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Chemiluminescence resonance energy transfer biosensing platform for site-specific determination of DNA methylation and assay of DNA methyltransferase activity using exonuclease III-assisted target recycling amplification. Biosens Bioelectron 2014; 54:48-54. [DOI: 10.1016/j.bios.2013.10.050] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2013] [Revised: 09/30/2013] [Accepted: 10/22/2013] [Indexed: 01/06/2023]
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114
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Zhao Y, Chen F, Lin M, Fan C. A methylation-blocked cascade amplification strategy for label-free colorimetric detection of DNA methyltransferase activity. Biosens Bioelectron 2014; 54:565-70. [DOI: 10.1016/j.bios.2013.11.055] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2013] [Revised: 11/17/2013] [Accepted: 11/18/2013] [Indexed: 01/13/2023]
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115
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Wang F, Lu CH, Willner I. From cascaded catalytic nucleic acids to enzyme-DNA nanostructures: controlling reactivity, sensing, logic operations, and assembly of complex structures. Chem Rev 2014; 114:2881-941. [PMID: 24576227 DOI: 10.1021/cr400354z] [Citation(s) in RCA: 494] [Impact Index Per Article: 49.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Fuan Wang
- Institute of Chemistry, The Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem , Jerusalem 91904, Israel
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116
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Deng H, Yang X, Yeo SPX, Gao Z. Highly Sensitive Electrochemical Methyltransferase Activity Assay. Anal Chem 2014; 86:2117-23. [DOI: 10.1021/ac403716g] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Huimin Deng
- Department of Chemistry, National University of Singapore, Singapore 117543
| | - Xinjian Yang
- Department of Chemistry, National University of Singapore, Singapore 117543
| | | | - Zhiqiang Gao
- Department of Chemistry, National University of Singapore, Singapore 117543
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117
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Ji L, Cai Z, Qian Y, Wu P, Zhang H, Cai C. Highly sensitive methyltransferase activity assay and inhibitor screening based on fluorescence quenching of graphene oxide integrated with the site-specific cleavage of restriction endonuclease. Chem Commun (Camb) 2014; 50:10691-4. [DOI: 10.1039/c4cc04428b] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A sensitive and selective approach for the DNA methyltransferase activity assay and MTase inhibitor screening is reported.
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Affiliation(s)
- Lijuan Ji
- Jiangsu Key Laboratory of New Power Batteries
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials
- College of Chemistry and Materials Science
- Nanjing Normal University
- Nanjing 210097, China
| | - Zhewei Cai
- Jiangsu Key Laboratory of New Power Batteries
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials
- College of Chemistry and Materials Science
- Nanjing Normal University
- Nanjing 210097, China
| | - Yingdan Qian
- Jiangsu Key Laboratory of New Power Batteries
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials
- College of Chemistry and Materials Science
- Nanjing Normal University
- Nanjing 210097, China
| | - Ping Wu
- Jiangsu Key Laboratory of New Power Batteries
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials
- College of Chemistry and Materials Science
- Nanjing Normal University
- Nanjing 210097, China
| | - Hui Zhang
- Jiangsu Key Laboratory of New Power Batteries
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials
- College of Chemistry and Materials Science
- Nanjing Normal University
- Nanjing 210097, China
| | - Chenxin Cai
- Jiangsu Key Laboratory of New Power Batteries
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials
- College of Chemistry and Materials Science
- Nanjing Normal University
- Nanjing 210097, China
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118
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Tang W, Zhu G, Zhang CY. Sensitive detection of polynucleotide kinase using rolling circle amplification-induced chemiluminescence. Chem Commun (Camb) 2014; 50:4733-5. [DOI: 10.1039/c4cc00256c] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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119
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Quach QH, Chung BH. A signal-on fluorescent assay for DNA methyltransferase activity using a methylation-resistant endonuclease. Analyst 2014; 139:2674-7. [DOI: 10.1039/c3an02129g] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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120
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Roembke BT, Nakayama S, Sintim HO. Nucleic acid detection using G-quadruplex amplification methodologies. Methods 2013; 64:185-98. [PMID: 24135042 PMCID: PMC7129037 DOI: 10.1016/j.ymeth.2013.10.003] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2013] [Revised: 09/19/2013] [Accepted: 10/02/2013] [Indexed: 12/28/2022] Open
Abstract
In the last decade, there has been an explosion in the use of G-quadruplex labels to detect various analytes, including DNA/RNA, proteins, metals and other metabolites. In this review, we focus on strategies for the detection of nucleic acids, using G-quadruplexes as detection labels or as enzyme labels that amplify detection signals. Methods to detect other analytes are briefly mentioned. We highlight various strategies, including split G-quadruplex, hemin-G-quadruplex conjugates, molecular beacon G-quadruplex or inhibited G-quadruplex probes. The tandem use of G-quadruplex labels with various DNA-modifying enzymes, such as polymerases (used for rolling circle amplification), exonucleases and endonucleases, is also discussed. Some of the detection modalities that are discussed in this review include fluorescence, colorimetric, chemiluminescence, and electrochemical methods.
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121
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Gao Y, Li B. G-Quadruplex DNAzyme-Based Chemiluminescence Biosensing Strategy for Ultrasensitive DNA Detection: Combination of Exonuclease III-Assisted Signal Amplification and Carbon Nanotubes-Assisted Background Reducing. Anal Chem 2013; 85:11494-500. [DOI: 10.1021/ac402728d] [Citation(s) in RCA: 96] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Yuan Gao
- Key laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi’an 710062, China
| | - Baoxin Li
- Key laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi’an 710062, China
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122
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Bi S, Cui Y, Dong Y, Zhang N. Target-induced self-assembly of DNA nanomachine on magnetic particle for multi-amplified biosensing of nucleic acid, protein, and cancer cell. Biosens Bioelectron 2013; 53:207-13. [PMID: 24140870 DOI: 10.1016/j.bios.2013.09.066] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2013] [Revised: 09/24/2013] [Accepted: 09/26/2013] [Indexed: 12/19/2022]
Abstract
A biosensing system is established for the multi-amplified detection of DNA or specific substrates of aptamers under isothermal conditions, which combines nicked rolling circle amplification (N-RCA) and beacon assisted amplification (BAA) with sensitive colorimetric technique by using DNAzymes as reporter units. According to the configuration, the analysis of DNA is accomplished by recognizing the target to capture nucleic acid-functionalized magnetic particles, followed by the self-assembly of the other two nucleic acids into multicomponent DNA supramolecular structure on magnetic particles. After magnetic separation, the circularization with ligase and the fragmentation with polymerase activate N-RCA and BAA in the presence of polymerase, dNTPs, and the nicking endonuclease, successively producing horseradish peroxidase (HRP)-mimicking DNAzymes that act as colorimetric reporter to catalyze the oxidation of ABTS(2-) by H2O2 in the presence of hemin. Under the optimized conditions, we obtain a wide dynamic range for DNA analysis over 6 orders of magnitude from 1.0 × 10(-14) to 1.0 × 10(-9)M with a low limit of detection of 6.8 × 10(-15)M. In the absence of a target, neither self-assembly of nucleic acids nor amplification process can be initiated, indicating an excellent selectivity of the proposed strategy. Similarly, an analogous system is activated by cancer cells or lysozyme through cooperative self-assembly of nucleic acids on magnetic particles in the presence of respective substrates of aptamers to synthesize HRP-mimicking DNAzymes that give the readout signal for the recognition events, achieving LODs of 81 Ramos cells and 7.2 × 10(-15)M lysozyme, respectively.
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Affiliation(s)
- Sai Bi
- Shandong Provincial Key Laboratory of Detection Technology of Tumor Markers, School of Chemistry and Chemical Engineering, Linyi University, Linyi 276005, China; Key Laboratory of Sensor Analysis of Tumor Marker, Ministry of Education, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China.
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