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Xu L, Yuan F, Wang L, Peng T. Palindrome sequence mediated target recycling integrating with self-priming assisted signal reaction for sensitive miRNA detection. Anal Biochem 2024; 693:115594. [PMID: 38897269 DOI: 10.1016/j.ab.2024.115594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2024] [Revised: 06/15/2024] [Accepted: 06/17/2024] [Indexed: 06/21/2024]
Abstract
The development of a sensitive and isothermal technique with a greatly enhanced miRNA detection signal is still technically problematic due to the low abundance of miRNA and high sequence similarities with homologous miRNAs. Herein, we propose a novel fluorescence approach for sensitive and reliable miRNA detection by integrating the palindrome sequence mediated target recycling with self-priming assisted signal reaction. In this method, a dual toehold DNA nano-probe (HT) with two functional arms is designed to mediate specific target recognition and signal amplification. In the presence of target miRNA, it binds to the recognition module of HT probe, releasing the "2" sequence to initiate strand displacement amplification (SDA) and a self-priming-induced signal reaction. Based on the elegant design, the proposed method exhibits a wide linear response range exceeding five orders of magnitude and a low limit of detection of 0.96 fM according to the 3δ rule. The non-specific signal is below 5 % for non-target miRNA detection. Taking the merits of excellent sensitivity, desirable specificity, and superior anti-interference ability, the proposed approach shows a promising prospect for detecting miRNAs in complicated biological environments and early diagnosis of diseases.
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Affiliation(s)
- Linling Xu
- Department of Cardiovascular Medicine, People's Hospital of Chongqing Liang Jiang New Area, Chongqing, 401121, China
| | - Fengrong Yuan
- Department of Cardiovascular Medicine, People's Hospital of Chongqing Liang Jiang New Area, Chongqing, 401121, China
| | - Ling Wang
- Department of Cardiovascular Medicine, People's Hospital of Chongqing Liang Jiang New Area, Chongqing, 401121, China
| | - Ting Peng
- Department of Cardiovascular Medicine, People's Hospital of Chongqing Liang Jiang New Area, Chongqing, 401121, China.
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2
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Li XY, Zhou BX, Xiao YL, Liu X, Wang YQ, Li MM, Wang JP. Label-free and ultrasensitive detection of environmental lead ions based on spatially localized DNA nanomachines driven by hyperbranched hybridization chain reaction. JOURNAL OF HAZARDOUS MATERIALS 2024; 476:135115. [PMID: 38976962 DOI: 10.1016/j.jhazmat.2024.135115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Revised: 06/23/2024] [Accepted: 07/04/2024] [Indexed: 07/10/2024]
Abstract
A label-free fluorescent sensing strategy for the rapid and highly sensitive detection of Pb2+ was developed by integrating Pb2+ DNAzyme-specific cleavage activity and a tetrahedral DNA nanostructure (TDN)-enhanced hyperbranched hybridization chain reaction (hHCR). This strategy provides accelerated reaction rates because of the highly effective collision probability and enriched local concentrations from the spatial confinement of the TDN, thus showing a higher detection sensitivity and a more rapid detection process. Moreover, a hairpin probe based on a G-triplex instead of a G-quadruplex or chemical modification makes hybridization chain reaction more controlled and flexible, greatly improving signal amplification capacities and eliminating labeled DNA probes. The enhanced reaction rates and improved signal amplification efficiency endowed the biosensors with high sensitivity and a rapid response. The label-free detection of Pb2+ based on G-triplex combined with thioflavin T can be achieved with a detection limit as low as 1.8 pM in 25 min. The proposed Pb2+-sensing platform was also demonstrated to be applicable for Pb2+ detection in tap water, river water, shrimp, rice, and soil samples, thus showing great potential for food safety and environmental monitoring.
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Affiliation(s)
- Xiao-Yu Li
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Food Nutrition and Safety (Ministry of Education), College of Food Engineering and Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, PR China
| | - Bo-Xi Zhou
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Food Nutrition and Safety (Ministry of Education), College of Food Engineering and Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, PR China
| | - Yu-Ling Xiao
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Food Nutrition and Safety (Ministry of Education), College of Food Engineering and Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, PR China
| | - Xin Liu
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Food Nutrition and Safety (Ministry of Education), College of Food Engineering and Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, PR China
| | - Yong-Qian Wang
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Food Nutrition and Safety (Ministry of Education), College of Food Engineering and Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, PR China
| | - Ming-Min Li
- Life and Health Research Institute School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin 300384, PR China
| | - Jun-Ping Wang
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Food Nutrition and Safety (Ministry of Education), College of Food Engineering and Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, PR China.
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3
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Yao Y, Liu W, Guan J, Cheng Y, Wu Z, Liu Q, Chen X. Synergy of Target-Induced Magnetic Network and Single-Drop Chromogenic System for Ultrasensitive "All-in-Tube" Detection of miRNA in Whole Blood. Anal Chem 2024; 96:12012-12021. [PMID: 38975991 DOI: 10.1021/acs.analchem.4c02045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/09/2024]
Abstract
The development of liquid biopsy methods for the accurate and reliable detection of miRNAs in whole blood is critical for the early diagnosis and monitoring of diseases. However, accurate quantification of miRNA expression levels remains challenging due to the complex matrix and low abundance of miRNAs in blood samples. Herein, we report a contactless signal output strategy with low background interference that ensures "zero-contact" between the reaction system and the colorimetry system. The designed target-induced magnetic ZnS/ZIF-90/ZnS network can serve as a unique signal amplifier and transducer. It releases hydrogen sulfide (H2S) gas in an acidic solution which can be concentrated in a droplet of only a few microliters in volume, etching the silver layer of Au@Ag nanostars (NSTs) in the droplet. This will lead to changes in the localized surface plasmon resonance signals of the NSTs. Finally, quantitative detection of let-7a is realized by measuring the offset value of the UV-vis absorption peak. Therefore, by virtue of the synergistic action of quadruple signal amplification methods, including catalytic hairpin assembly, ZnS/ZIF-90/ZnS, magnetic separation, and microextraction, the "All-in-Tube" ultrasensitive detection of low-abundance let-7a in whole blood is achieved with a detection limit as low as the aM level. In addition, the "zero-contact" signal output mode effectively solves the problem of complex matrix interference, demonstrating the great potential of this method for miRNA quantification in complex samples, such as whole blood.
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Affiliation(s)
- Yao Yao
- College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan 410083, China
| | - Wei Liu
- College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan 410083, China
| | - Jianping Guan
- College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan 410083, China
| | - Yujun Cheng
- College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan 410083, China
| | - Zhiliang Wu
- School of Chemistry and Materials Engineering, Huizhou University, Huizhou 516007, China
| | - Qi Liu
- College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan 410083, China
| | - Xiaoqing Chen
- College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan 410083, China
- Xiangjiang Laboratory, Changsha, Hunan 410083, China
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4
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Johnson RE, Murray MT, Roby DJ, Bycraft LJ, Churcher ZR, Yadav S, Johnson PE, Wetmore SD, Manderville RA. Unlocking Pb 2+ Sensing Potential in a DNA G-Quadruplex via Loop Modification with Fluorescent Chalcone Surrogates. ACS Sens 2023; 8:4756-4764. [PMID: 38063049 DOI: 10.1021/acssensors.3c01866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
The ability of guanine (G)-rich DNA to bind toxic lead (Pb2+) ions within a G-quadruplex (GQ) motif is a leading DNA biosensor strategy. A major analytical hurdle for GQ detection of Pb2+ is competitive GQ templating by potassium (K+) ions. We employ the on-strand DNA synthesis of internal fluorescent chalcone surrogates within the 15-mer thrombin binding aptamer (TBA15) to address this challenge. Replacement of thymidine at the 3-position (T3) within TBA15 with an indole-4-hydroxy-indanone (Ind4HI) chalcone strongly decreases K+-GQ stability while enhancing Pb2+-GQ stability to increase Pb2+ binding specificity. The new T3-Ind4HI probe exhibits a 15-fold increase in fluorescence intensity upon binding of Pb2+ by the modified TBA15 and can detect 6.4 nM Pb2+ in the presence of 10 mM K+. Thus, replacement of the T3 residue of TBA15 with the new Ind4HI probe modulates metal ion affinity by native TBA15 to solve the analytical challenge posed by K+ in real water samples for detecting Pb2+ to meet regulatory guidelines by using a GQ biosensor.
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Affiliation(s)
- Ryan E Johnson
- Departments of Chemistry and Toxicology, University of Guelph, Guelph N1G 2W1, Ontario, Canada
| | - Makay T Murray
- Department of Chemistry and Biochemistry, University of Lethbridge, Lethbridge T1K 3M4, Alberta, Canada
| | - Dylan J Roby
- Departments of Chemistry and Toxicology, University of Guelph, Guelph N1G 2W1, Ontario, Canada
| | - Lucas J Bycraft
- Departments of Chemistry and Toxicology, University of Guelph, Guelph N1G 2W1, Ontario, Canada
| | - Zachary R Churcher
- Department of Chemistry, York University, Toronto M3J 1P3, Ontario, Canada
| | - Saanya Yadav
- Department of Chemistry and Biochemistry, University of Lethbridge, Lethbridge T1K 3M4, Alberta, Canada
| | - Philip E Johnson
- Department of Chemistry, York University, Toronto M3J 1P3, Ontario, Canada
| | - Stacey D Wetmore
- Department of Chemistry and Biochemistry, University of Lethbridge, Lethbridge T1K 3M4, Alberta, Canada
| | - Richard A Manderville
- Departments of Chemistry and Toxicology, University of Guelph, Guelph N1G 2W1, Ontario, Canada
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5
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Yan T, Hou Y, Zuo Q, Jiang D, Zhao H, Xia T, Zhu X, Han X, An R, Liang X. Ultralow background one-pot detection of Lead(II) using a non-enzymatic double-cycle system mediated by a hairpin-involved DNAzyme. Biosens Bioelectron 2023; 237:115534. [PMID: 37527624 DOI: 10.1016/j.bios.2023.115534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 07/01/2023] [Accepted: 07/13/2023] [Indexed: 08/03/2023]
Abstract
A double-cycle system has been developed for specifically detecting trace amounts of Pb2+ by significantly decreasing the background signal. The detection involves two types of RNA cleavage reactions: one using a Pb2+-specific GR5 DNAzyme (PbDz) and the other utilizing a newly constructed 10-23 DNAzyme with two hairpins embedded in its catalytic center (hpDz). The ring-structured hpDz (c-hpDz) exhibits significantly lower activity compared to the circular 10-23 DNAzyme without hairpin structures, which plays a crucial role in reducing the background signal. When Pb2+ is present, PbDz cleaves c-hpDz to its active form, which then disconnects the molecular beacon to emit the fluorescent signal. The method allows for rapid and sensitive Pb2+ detection within 40 min for 10 fM of Pb2+ and even as short as 10 min for 100 nM of Pb2+. Additionally, visual detection is possible through the non-crosslinking assembly of Au nanoparticles. The entire process can be performed in one pot and even one step, making it highly versatile and suitable for a wide range of applications, including food safety testing and environmental monitoring.
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Affiliation(s)
- Ting Yan
- College of Food Science and Engineering, Ocean University of China, Qingdao 266404, China
| | - Yuying Hou
- College of Food Science and Engineering, Ocean University of China, Qingdao 266404, China
| | - Qianqian Zuo
- College of Food Science and Engineering, Ocean University of China, Qingdao 266404, China
| | - Difei Jiang
- College of Food Science and Engineering, Ocean University of China, Qingdao 266404, China
| | - Huijie Zhao
- College of Food Science and Engineering, Ocean University of China, Qingdao 266404, China
| | - Tongyue Xia
- College of Food Science and Engineering, Ocean University of China, Qingdao 266404, China
| | - Xiaoqian Zhu
- College of Food Science and Engineering, Ocean University of China, Qingdao 266404, China
| | - Xutiange Han
- College of Food Science and Engineering, Ocean University of China, Qingdao 266404, China
| | - Ran An
- College of Food Science and Engineering, Ocean University of China, Qingdao 266404, China; Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, China.
| | - Xingguo Liang
- College of Food Science and Engineering, Ocean University of China, Qingdao 266404, China; Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, China
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6
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Wang Y, Xiao J, Lin X, Waheed A, Ravikumar A, Zhang Z, Zou Y, Chen C. A Self-Assembled G-Quadruplex/Hemin DNAzyme-Driven DNA Walker Strategy for Sensitive and Rapid Detection of Lead Ions Based on Rolling Circle Amplification. BIOSENSORS 2023; 13:761. [PMID: 37622847 PMCID: PMC10452914 DOI: 10.3390/bios13080761] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 07/14/2023] [Accepted: 07/24/2023] [Indexed: 08/26/2023]
Abstract
Herein, a sensitive biosensor is constructed based on a novel rolling circle amplification (RCA) for colorimetric quantification of lead ion (Pb2+). At the detection system, GR5 DNAzymes are modified on the surface of an immunomagnetic bead, and Pb2+ is captured by the aptamer, inducing the disintegration of the GR5 DNAzyme and the release of the DNA walker. After the introduction of the template DNA, T4 DNA ligase, and phi29 DNA polymerase, an RCA is initiated for the sensitivity improvement of this method. Moreover, a G4-hemin DNAzyme is formed as a colorimetric signal, owing to its peroxide-like activity to catalyze the TMB-H2O2 substrate. Under the optimized conditions, the limit of detection (LOD) of this fabricated biosensor could reach 3.3 pM for Pb2+ with a concentration in the range of 0.01-1000 nM. Furthermore, the results of real samples analysis demonstrate its satisfactory accuracy, implying its great potential in the rapid detection of heavy metals in the environment.
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Affiliation(s)
- Yuhan Wang
- School of Emergency Management, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Jiaxuan Xiao
- School of Emergency Management, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Xiaona Lin
- Department of Pulmonary and Critical Care Medicine, The Quzhou Affiliated Hospital of Wenzhou Medical University, Quzhou People’s Hospital, Quzhou 324000, China
- Key Laboratory of Interventional Pulmonology of Zhejiang Province, Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Amira Waheed
- Department of Pulmonary and Critical Care Medicine, The Quzhou Affiliated Hospital of Wenzhou Medical University, Quzhou People’s Hospital, Quzhou 324000, China
- Key Laboratory of Interventional Pulmonology of Zhejiang Province, Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Ayyanu Ravikumar
- School of Emergency Management, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Zhen Zhang
- School of Emergency Management, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Yanmin Zou
- School of Emergency Management, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
- School of Pharmacy, Jiangsu University, Zhenjiang 212013, China
| | - Chengshui Chen
- Department of Pulmonary and Critical Care Medicine, The Quzhou Affiliated Hospital of Wenzhou Medical University, Quzhou People’s Hospital, Quzhou 324000, China
- Key Laboratory of Interventional Pulmonology of Zhejiang Province, Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
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7
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Li Y, Ma X, Liu K, Liu Z, Zou R, Wang J, Yang C, Zheng H, Sun C. A ratiometric fluorescence platform for lead ion detection via RNA cleavage-inhibited self-assembly of three-arm branched junction. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 298:122787. [PMID: 37150075 DOI: 10.1016/j.saa.2023.122787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 04/12/2023] [Accepted: 04/24/2023] [Indexed: 05/09/2023]
Abstract
Heavy metal pollution can pose a threat to food safety and human health, and accurate quantification of heavy metal ions is a vital requirement. Emerging DNA nanostructures-based biosensors offer attractive tools toward ultra-sensitive or rapid analysis of heavy metal ions. However, the problems including complex design, severe reaction conditions and undesirable reliability are inevitable obstacle in advancing their extension and application. Herein, a ratiometric fluorescent platform was established for monitoring lead ion (Pb2+) in food based on dual Förster resonance energy transfer (FRET) and RNA cleavage-inhibited self-assembly of three-arm branched junction (TBJ). GR-5 DNAzyme was employed for Pb2+ recognition, and enzyme-free amplification technique catalytic hairpin assembly (CHA) served to form FRET probes-carried TBJ. The substrate strand (S) of DNAzyme triggered the generation of CHA-TBJ, and Pb2+-responsive cleavage of S hindered the assembly of CHA-TBJ, causing opposite changes in the FRET states of FAM/BHQ1 and ROX/BHQ2 pairs. The fluorescence responses were recorded through synchronous fluorescence spectrometry to indicate Pb2+ concentration, allowing sensitive and reliable identification of Pb2+ in the linear range of 0.05-5 ng mL-1 with the detection limit of 0.03 ng mL-1. The Pb2+ detection can be achieved under conventional reaction conditions, simple mixing procedures and one-step measurement operation. The approach can afford excellent specificity for Pb2+ against competing metal ions, and can be applied to analyze Pb2+ in tea samples with satisfactory results. This facile fluorescence platform shows a capable method for Pb2+ detection, and provides new avenue in the development of ratiometric approaches and DNAzyme strategies for monitoring heavy metal pollution, facilitating the transformation of DNAzyme-based biosensors for food safety control.
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Affiliation(s)
- Ying Li
- Department of Food Quality and Safety, Jilin University, Changchun 130062, China
| | - Xinyue Ma
- Department of Food Quality and Safety, Jilin University, Changchun 130062, China
| | - Kai Liu
- Department of Food Quality and Safety, Jilin University, Changchun 130062, China
| | - Zheng Liu
- Department of Food Quality and Safety, Jilin University, Changchun 130062, China
| | - Ruiqi Zou
- Department of Food Quality and Safety, Jilin University, Changchun 130062, China
| | - Junyang Wang
- Department of Food Quality and Safety, Jilin University, Changchun 130062, China
| | - Chuanyu Yang
- Department of Food Quality and Safety, Jilin University, Changchun 130062, China
| | - Hongru Zheng
- Jilin Province Product Quality Supervision and Inspection Institute, Changchun 130103, Jilin, China
| | - Chunyan Sun
- Department of Food Quality and Safety, Jilin University, Changchun 130062, China.
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9
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Recent advances in the construction of functional nucleic acids with isothermal amplification for heavy metal ions sensor. Microchem J 2022. [DOI: 10.1016/j.microc.2021.107077] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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10
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Simple Enzyme-Free Biosensor for Highly Sensitive and Selective Detection of miR-21 Based on Multiple Signal Amplification Strategy. JOURNAL OF ANALYSIS AND TESTING 2022. [DOI: 10.1007/s41664-022-00214-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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11
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Liu Y, Sun X, Yuan H, Liu B, Zhou B, Chen X, Li X, Xue Q. Sensitive detection of p53 DNA based on spatially confined fluorescence resonance energy transfer and multivalent assembly of branched DNA. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2021; 13:4314-4319. [PMID: 34476425 DOI: 10.1039/d1ay01110c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
A key challenge for the discrete distribution-based Förster resonance energy transfer system (D-FRET) is the reduced intensity and stability of signal probes in complex biological matrices. Here, we present a spatially confined FRET (SC-FRET) probe with a stable structure and strong signal output. It consists of multivalent FRET pairs labeled with FAM or TAMRA. In this assay, p53 DNA was chosen as a model hairpin probe (HP), and two kinds of branched DNA probes (ssDNA-FAM, ssDNA-TAMRA) were involved. Under the action of p53 DNA, the unfolded HP acts as a primer to initiate polymerization extension of KFP polymerase and cleavage of Nb.BbvCI endonuclease, which produces plenty of ssDNA (primer-DNA). The branched DNA is designed to have the same binding core and different sticky ends, the core part of which can self-assemble to form X-shaped branched DNA (X-FAM or X-TAMRA), and the sticky ends of which are complementary to the primer-DNA. Therefore, the primer-DNAs released during the polymerization cleavage process will combine a large number of X-FAM and X-TAMRA in a limited space through complementary base pairing. Fluorescence was transferred from FAM to TAMRA, and a strong FRET response was generated by the locational effects. The proposed SC-FRET system based on the multivalent assembly of branched DNA exhibited a strong FRET response with an LOD of 0.01394 pM. Importantly, it also showed a high-contrast and stable FRET response in HeLa cells. Its superior biological stability is attributed to the large steric hindrance of the compact and rigid frame of the SC-FRET probe, which helps prevent intracellular degradation and provides a powerful tool for biomedical research.
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Affiliation(s)
- Yeling Liu
- Department of Chemistry, Liaocheng University, Liaocheng 252059, China.
| | - Xia Sun
- Department of Chemistry, Liaocheng University, Liaocheng 252059, China.
| | - Hui Yuan
- Department of Chemistry, Liaocheng University, Liaocheng 252059, China.
| | - Bingxin Liu
- Department of Chemistry, Liaocheng University, Liaocheng 252059, China.
| | - Bingqian Zhou
- Department of Chemistry, Liaocheng University, Liaocheng 252059, China.
| | - Xuening Chen
- College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, China
| | - Xia Li
- Department of Chemistry, Liaocheng University, Liaocheng 252059, China.
| | - Qingwang Xue
- Department of Chemistry, Liaocheng University, Liaocheng 252059, China.
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12
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Rolling Circle Amplification as an Efficient Analytical Tool for Rapid Detection of Contaminants in Aqueous Environments. BIOSENSORS-BASEL 2021; 11:bios11100352. [PMID: 34677308 PMCID: PMC8533700 DOI: 10.3390/bios11100352] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 09/16/2021] [Accepted: 09/21/2021] [Indexed: 12/16/2022]
Abstract
Environmental contaminants are a global concern, and an effective strategy for remediation is to develop a rapid, on-site, and affordable monitoring method. However, this remains challenging, especially with regard to the detection of various contaminants in complex water environments. The application of molecular methods has recently attracted increasing attention; for example, rolling circle amplification (RCA) is an isothermal enzymatic process in which a short nucleic acid primer is amplified to form a long single-stranded nucleic acid using a circular template and special nucleic acid polymerases. Furthermore, this approach can be further engineered into a device for point-of-need monitoring of environmental pollutants. In this paper, we describe the fundamental principles of RCA and the advantages and disadvantages of RCA assays. Then, we discuss the recently developed RCA-based tools for environmental analysis to determine various targets, including heavy metals, organic small molecules, nucleic acids, peptides, proteins, and even microorganisms in aqueous environments. Finally, we summarize the challenges and outline strategies for the advancement of this technique for application in contaminant monitoring.
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13
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Near-infrared light excited UCNP-DNAzyme nanosensor for selective detection of Pb2+ and in vivo imaging. Talanta 2021; 227:122156. [DOI: 10.1016/j.talanta.2021.122156] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 01/21/2021] [Accepted: 01/26/2021] [Indexed: 12/31/2022]
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14
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Rolling Circle Replication for Biosensing, Bioimaging, and Biomedicine. Trends Biotechnol 2021; 39:1160-1172. [PMID: 33715868 DOI: 10.1016/j.tibtech.2021.02.007] [Citation(s) in RCA: 106] [Impact Index Per Article: 35.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 02/10/2021] [Accepted: 02/10/2021] [Indexed: 12/11/2022]
Abstract
Rolling circle replication (RCR), including rolling circle amplification (RCA) and rolling circle transcription (RCT), is an isothermal enzymatic reaction. Because of its high amplification efficiency, RCR is a powerful biosensing tool for detecting biomolecules. In recent years, RCR has also been extended to the field of bioimaging to better understand biological pathways. Furthermore, RCR provides a simple technique to design and generate DNA/RNA structures with unique advantages in delivering drugs and enhanced targeting ability. In this review, we introduce the fundamentals of RCR and describe the most recent advances in RCR-based detection methods and delivery vehicles for biosensing, bioimaging, and biomedicine. Finally, some challenges and further opportunities of RCR-based biotechnology are discussed.
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15
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Yang Y, Li W, Liu J. Review of recent progress on DNA-based biosensors for Pb 2+ detection. Anal Chim Acta 2020; 1147:124-143. [PMID: 33485571 DOI: 10.1016/j.aca.2020.12.056] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2020] [Revised: 12/12/2020] [Accepted: 12/25/2020] [Indexed: 02/08/2023]
Abstract
Lead (Pb) is a highly toxic heavy metal of great environmental and health concerns, and interestingly Pb2+ has played important roles in nucleic acids chemistry. Since 2000, using DNA for selective detection of Pb2+ has become a rapidly growing topic in the analytical community. Pb2+ can serve as the most active cofactor for RNA-cleaving DNAzymes including the GR5, 17E and 8-17 DNAzymes. Recently, Pb2+ was found to promote a porphyrin metalation DNAzyme named T30695. In addition, Pb2+ can tightly bind to various G-quadruplex sequences inducing their unique folding and binding to other molecules such as dyes and hemin. The peroxidase-like activity of G-quadruplex/hemin complexes was also used for Pb2+ sensing. In this article, these Pb2+ recognition mechanisms are reviewed from fundamental chemistry to the design of fluorescent, colorimetric, and electrochemical biosensors. In addition, various signal amplification mechanisms such as rolling circle amplification, hairpin hybridization chain reaction and nuclease-assisted methods are coupled to these sensing methods to drive up sensitivity. We mainly cover recent examples published since 2015. In the end, some practical aspects of these sensors and future research opportunities are discussed.
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Affiliation(s)
- Yongjie Yang
- Department of Food and Biological Sciences, College of Agriculture, Yanbian University, Yanji, 133002, China; Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada
| | - Weixuan Li
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada
| | - Juewen Liu
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada; Water Institute, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada.
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16
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Liu LQ, Yin F, Lu Y, Yan XL, Wu CC, Li X, Li C. A light-up "G-quadruplex nanostring" for label-free and selective detection of miRNA via duplex-specific nuclease mediated tandem rolling circle amplification. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2020; 32:102339. [PMID: 33227538 DOI: 10.1016/j.nano.2020.102339] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 11/08/2020] [Accepted: 11/11/2020] [Indexed: 12/29/2022]
Abstract
MicroRNA (miRNA) has emerged as a promising genetic marker for cancer diagnosis and therapy because its expression level is closely related to the progression of malignant diseases. Herein, a label-free and selective fluorescence platform was proposed for miRNA based on light-up "G-quadruplex nanostring" via duplex-specific nuclease (DSN) mediated tandem rolling circle amplification (RCA). First, a long DNA generated from upstream RCA was designed with the antisense sequences for miR-21 and downstream RCA primer. Upon recognizing miR-21, the resulting DNA-RNA permitted DSN digestion and triggered downstream two-way RCA, and generation of abundant "G-quadruplex nanostring" binding with ZnPPIX for label-free fluorescent responses. In our strategy, the strong preference of DSN for perfectly matched DNA/RNA ensures its excellent selectivity. The developed method generated wide linear response with LOD of 1.019 fM. Additionally, the miR-21 levels in cell extracts have been evaluated, revealing the utility of this tool for biomedical research and clinical diagnosis.
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Affiliation(s)
- Li-Qi Liu
- Department of Chemistry, Liaocheng University, Liaocheng, China
| | - Fei Yin
- Department of Chemistry, Liaocheng University, Liaocheng, China
| | - Yu Lu
- Department of Chemistry, Liaocheng University, Liaocheng, China
| | - Xi-Luan Yan
- Department of Bio-industrial Mechatronics Engineering, National Chung Hsing University, Taiwan
| | - Ching-Chou Wu
- Department of Bio-industrial Mechatronics Engineering, National Chung Hsing University, Taiwan
| | - Xia Li
- Department of Chemistry, Liaocheng University, Liaocheng, China.
| | - Chenzhong Li
- Department of Bio-industrial Mechatronics Engineering, National Chung Hsing University, Taiwan
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17
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A label-free mass spectrometry detection of microRNA by signal switching from high-molecular-weight polynucleotides to highly sensitive small molecules. Talanta 2020; 224:121899. [PMID: 33379105 DOI: 10.1016/j.talanta.2020.121899] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 11/06/2020] [Accepted: 11/12/2020] [Indexed: 12/14/2022]
Abstract
MicroRNAs (miRNAs) are associated with various cellular processes and have been recognized as potential biomarkers for many human diseases. The sensitive and accurate determination of miRNA expression levels in biological specimens is highly significant for understanding their biological functions and clinical diagnosis. Mass spectrometry (MS) has shown its potential to study bioactive molecules, however, direct MS analysis of miRNAs is often hampered by limited sensitivity. For sensitive detection of miRNAs, indirect methods are generally employed through the use of DNA probes labeled with peptides or metal elements. In this work, we proposed a novel MS-based label-free strategy for miRNA quantification. A dual-amplification system was developed by using a padlock probe containing the poly(thymine) sequence in combination with rolling circle amplification (RCA). The specific recognition of target miRNA by the padlock probes produced long single-stranded DNAs containing poly (adenine) segments, which guaranteed the specificity of detection and realized primary amplification. Then the RCA products were extracted and treated with acid to release a large number of free adenines as reporter molecules for secondary signal amplification. Overall, the quantification of target miRNA was carried out by signal switching from high-molecular-weight RCA products to highly sensitive small molecule of adenine. The developed method achieved a linear detection range from 200 amol to 100 fmol for miRNA-21 with a limit of detection of 50 amol, and successfully applied to detect endogenous miRNA-21 levels from lung cancer cells. Overall, the present study provides a sensitive, specific MS-based method for miRNA detection and holds great potential for further application of MS technology to detect other biomarkers in biomedical research and early clinical diagnosis.
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18
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Tang S, Qi T, Yao Y, Tang L, Chen W, Chen T, Shen W, Kong D, Shi HW, Liu T, Lee HK. Magnetic Three-Phase Single-Drop Microextraction for Rapid Amplification of the Signals of DNA and MicroRNA Analysis. Anal Chem 2020; 92:12290-12296. [DOI: 10.1021/acs.analchem.0c01936] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Sheng Tang
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, Jiangsu Province, PR China
| | - Tong Qi
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, Jiangsu Province, PR China
| | - Yao Yao
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, Jiangsu Province, PR China
| | - Liangxiu Tang
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, Jiangsu Province, PR China
| | - Wenhui Chen
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, Jiangsu Province, PR China
| | - Tianyu Chen
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, Jiangsu Province, PR China
| | - Wei Shen
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, Jiangsu Province, PR China
| | - Dezhao Kong
- School of Grain Science and Technology, Jiangsu University of Science and Technology, Zhenjiang 212003, Jiangsu Province, PR China
| | - Hai-Wei Shi
- Jiangsu Institute for Food and Drug Control, Nanjing 210019, Jiangsu Province, PR China
- Key Laboratory for Impurity Profile of Chemical Drugs, National Medical Products Administration, Nanjing 210019, Jiangsu Province, PR China
| | - Tianlong Liu
- Department of Pharmacy, Xuzhou Cancer Hospital, Xuzhou 221000, Jiangsu Province, PR China
| | - Hian Kee Lee
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
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19
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He Y, Hu X, Gong Z, Chen S, Yuan R. A novel electrochemiluminescence biosensor based on the self-ECL emission of conjugated polymer dots for lead ion detection. Mikrochim Acta 2020; 187:237. [DOI: 10.1007/s00604-020-4212-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Accepted: 03/03/2020] [Indexed: 01/09/2023]
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20
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Li YK, Yang T, Chen ML, Wang JH. Recent Advances in Nanomaterials for Analysis of Trace Heavy Metals. Crit Rev Anal Chem 2020; 51:353-372. [PMID: 32182101 DOI: 10.1080/10408347.2020.1736505] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
In an effort to achieve high sensitivity analysis methods for ultra-trace levels of heavy metals, numerous new nanomaterials are explored for the application in preconcentration processes and sensing systems. Nanomaterial-based methods have proven to be effective for selective analysis and speciation of heavy metals in combination with spectrometric techniques. This review outlined the different types of nanomaterials applied in the field of heavy metal analysis, and concentrated on the latest developments in various new materials. In particular, the functionalization of traditional materials and the exploitation of bio-functional materials could increase the specificity to target metals. The hybridization of multiple materials could improve material properties, to build novel sensor system or achieve detection-removal integration. Finally, we discussed the future perspectives of nanomaterials in the heavy metal preconcentration and sensor design, as well as their respective advantages and challenges. Despite impressive progress and widespread attention, the development of new nanomaterials and nanotechnology is still hampered by numerous challenges, particularly in the specificity to the target and the anti-interference performance in complex matrices.
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Affiliation(s)
- Yi-Kun Li
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Shenyang, China
| | - Ting Yang
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Shenyang, China
| | - Ming-Li Chen
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Shenyang, China.,Analytical and Testing Center, Northeastern University, Shenyang, China
| | - Jian-Hua Wang
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Shenyang, China
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21
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Xing C, Chen Z, Zhang C, Wang J, Lu C. Construction of a Target-Initiated, Enzyme-Free DNA Cascade Circuit for Amplified Detection of Mercury. ACS APPLIED BIO MATERIALS 2020; 3:1853-1857. [DOI: 10.1021/acsabm.0c00142] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Chao Xing
- Fujian Provincial Key Laboratory of Functional Marine Sensing Materials, Center for Advanced Marine Materials and Smart Sensors, Minjiang University, Fuzhou 350108, P. R. China
| | - Ziyi Chen
- MOE Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou 350116, P. R. China
| | - Cheng Zhang
- Fujian Provincial Key Laboratory of Functional Marine Sensing Materials, Center for Advanced Marine Materials and Smart Sensors, Minjiang University, Fuzhou 350108, P. R. China
| | - Jun Wang
- Fujian Provincial Key Laboratory of Functional Marine Sensing Materials, Center for Advanced Marine Materials and Smart Sensors, Minjiang University, Fuzhou 350108, P. R. China
| | - Chunhua Lu
- MOE Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou 350116, P. R. China
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22
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Qi T, Song C, He J, Shen W, Kong D, Shi H, Tan L, Pan R, Tang S, Lee HK. Highly Sensitive Detection of Multiple MicroRNAs by High-Performance Liquid Chromatography Coupled with Long and Short Probe-Based Recycling Amplification. Anal Chem 2020; 92:5033-5040. [DOI: 10.1021/acs.analchem.9b05301] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Tong Qi
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, Jiangsu Province, People’s Republic of China
| | - Chang Song
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, Jiangsu Province, People’s Republic of China
| | - Jing He
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, Jiangsu Province, People’s Republic of China
| | - Wei Shen
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, Jiangsu Province, People’s Republic of China
| | - Dezhao Kong
- School of Grain Science and Technology, Jiangsu University of Science and Technology, Zhenjiang 212003, Jiangsu Province, People’s Republic of China
| | - Haiwei Shi
- Jiangsu Institute for Food and Drug Control, Nanjing 210019, Jiangsu Province, People’s Republic of China
- Key Laboratory for Impurity Profile of Chemical Drugs, National Medical Products Administration, Nanjing 210019, Jiangsu Province, People’s Republic of China
| | - Li Tan
- Jiangsu Institute for Food and Drug Control, Nanjing 210019, Jiangsu Province, People’s Republic of China
- Key Laboratory for Impurity Profile of Chemical Drugs, National Medical Products Administration, Nanjing 210019, Jiangsu Province, People’s Republic of China
| | - Ruirong Pan
- Affiliated Hospital of Jiangsu University, Zhenjiang 212001, Jiangsu Province, People’s Republic of China
| | - Sheng Tang
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, Jiangsu Province, People’s Republic of China
| | - Hian Kee Lee
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
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23
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Wang J, Chen S, Yuan R, Hu F. DNA branched junctions induced the enhanced fluorescence recovery of FAM-labeled probes on rGO for detecting Pb 2. Anal Bioanal Chem 2020; 412:2455-2463. [PMID: 32078003 DOI: 10.1007/s00216-020-02458-2] [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: 01/16/2020] [Accepted: 01/27/2020] [Indexed: 12/18/2022]
Abstract
The reduced graphene oxide (rGO) could strongly adsorb and quench the fluorescence of dye-labeled single-stranded DNA (ssDNA); thus, it is widely applied in fluorescent sensors. However, these sensors may suffer from a limited sensitivity due to the low fluorescence recovery when adding the complementary DNA (cDNA) sequence. In this work, the powerful DNA branched junctions were constructed to improve the fluorescence recovery of FAM-labeled probe on rGO. In the presence of target Pb2+, the ribonucleotide (rA) in the substrate was cleaved specifically and the catalytic hairpin assembly of three metastable hairpins was further initiated, accompanied by the formation of DNA branched junctions. Then, the liberated Pb2+ could be recyclable. Impressively, the DNA branched junctions not only hybridize with the FAM-labeled probes with a high efficiency, but also are significantly undesirable for the rGO. Thus, a high fluorescence recovery of FAM-labeled probe on rGO was expected. The integration of the high fluorescence recovery and dual-cycle signal amplification endows the sensing strategy with a good performance for Pb2+ detection, including low detection limit (0.17 nM), good selectivity, and satisfactory practical applicability. The proposed DNA branched junctions offer a novel avenue to improve the fluorescence recovery of the dye-labeled probes on rGO for biological analysis.
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Affiliation(s)
- Juanli Wang
- Chongqing Engineering Laboratory of Nanomaterials & Sensor Technologies, College of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Shihong Chen
- Chongqing Engineering Laboratory of Nanomaterials & Sensor Technologies, College of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China.
| | - Ruo Yuan
- Chongqing Engineering Laboratory of Nanomaterials & Sensor Technologies, College of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Fangxin Hu
- Institute of Materials Science & Devices, Suzhou University of Science and Technology, Suzhou, 215009, Jiangsu, China
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24
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Fluorometric determination of ssDNA based on functionalized magnetic microparticles and DNA supersandwich self-assemblies. Mikrochim Acta 2019; 186:707. [PMID: 31637526 DOI: 10.1007/s00604-019-3865-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Accepted: 09/20/2019] [Indexed: 10/25/2022]
Abstract
A method is described for the determination of DNA via nucleic acid amplification by using nucleic acid concatemers that result from DNA supersandwich self-assemblies (SSAs). The method employs two auxiliary probes to form self-assembled biotin SSAs. These exhibit strong fluorescence if labeled with intercalator SYBR Green I. In the presence of the target (as exemplified for a 30-mer), streptavidin is released from the surface of the functionalized magnetic microparticles (FMMPs) by competitive hybridization on the surface. However, the SSA products do not conjugate to the FMMPs. This leads to a large amount of SYBR Green I intercalated into the concatemers and eventually results in amplified fluorescence in the supernate. The SSA products can be prepared beforehand, and amplification therefore can be completed within 50 min. The method is more efficient than any other conventional amplification. The detection limit for the 30-mer is 26.4 fM which is better by a factor of 10 compared to other amplification methods. Conceivably, the method can be further extended to the determination of a wide variety of targets simply by replacing the sequences of the probes. Finally, this rapid and highly sensitive method was employed for detection of Ebola virus gene (≈30-mer) and ATP in spiked serum with satisfactory results. Graphical abstract A high sensitivity and efficiency bioassay is described based on functionalized magnetic microparticles and DNA supersandwich self-assemblies.
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25
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Shen C, Liu S, Li X, Yang M. Electrochemical Detection of Circulating Tumor Cells Based on DNA Generated Electrochemical Current and Rolling Circle Amplification. Anal Chem 2019; 91:11614-11619. [PMID: 31452368 DOI: 10.1021/acs.analchem.9b01897] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Circulating tumor cells (CTCs) are important indicators for tumor diagnosis and tumor metastasis. However, the extremely low levels of CTCs in peripheral blood challenges the precise detection of CTCs. Herein, we report DNA generated electrochemical current combined with rolling circle amplification (RCA) as well as magnetic nanospheres for highly efficient magnetic capture and ultrasensitive detection of CTCs. The antiepithelial cell adhesion molecule (EpCAM) antibody-modified magnetic nanospheres were used to capture and enrich CTCs. The following binding of an aptamer onto the CTC surface and the subsequent RCA assembled a significant amount of DNA molecules onto the electrode. The reaction of the DNA molecules with molybdate can then form redox molybdophosphate and produce an electrochemical current. Using the breast cancer cell MCF-7 as a model, the sensor displays good performances toward detection of MCF-7 that was spiked into peripheral blood. The signal amplification strategy integrated with a magnetic nanosphere platform exhibits good performance in the efficient capture and detection of CTCs, which may find wide potential in cancer diagnostics and therapeutics.
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Affiliation(s)
- Congcong Shen
- Key Laboratory of Hunan Province for Water Environment and Agriculture Product Safety, College of Chemistry and Chemical Engineering , Central South University , Changsha 410083 , China.,School of Chemistry and Chemical Engineering , Henan Normal University , Xinxiang 453007 , China
| | - Shuping Liu
- Key Laboratory of Hunan Province for Water Environment and Agriculture Product Safety, College of Chemistry and Chemical Engineering , Central South University , Changsha 410083 , China
| | - Xiaoqing Li
- Key Laboratory of Hunan Province for Water Environment and Agriculture Product Safety, College of Chemistry and Chemical Engineering , Central South University , Changsha 410083 , China
| | - Minghui Yang
- Key Laboratory of Hunan Province for Water Environment and Agriculture Product Safety, College of Chemistry and Chemical Engineering , Central South University , Changsha 410083 , China
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26
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A fluorometric lead(II) assay by using a DNA dendrimer as a carrier for the immobilization of the signal probe. Mikrochim Acta 2019; 186:582. [DOI: 10.1007/s00604-019-3666-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2019] [Accepted: 07/06/2019] [Indexed: 10/26/2022]
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27
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Lu W, Lin C, Yang J, Wang X, Yao B, Wang M. A DNAzyme assay coupled with effective magnetic separation and rolling circle amplification for detection of lead cations with a smartphone camera. Anal Bioanal Chem 2019; 411:5383-5391. [DOI: 10.1007/s00216-019-01879-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Revised: 04/21/2019] [Accepted: 04/26/2019] [Indexed: 12/18/2022]
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28
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Liu X, Wang H, Deng K, Kwee S, Huang H, Tang L. Single Primer Based Multisite Strand Displacement Reaction Amplification Strategy for Rapid Detection of Terminal Deoxynucleotidyl Transferase Activity. Anal Chem 2019; 91:7482-7486. [DOI: 10.1021/acs.analchem.9b01816] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Xinyan Liu
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, P. R. China
| | - Hao Wang
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, P. R. China
| | - Keqin Deng
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, P. R. China
- Department of Biomedical Engineering, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Sharon Kwee
- Department of Biomedical Engineering, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Haowen Huang
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, P. R. China
| | - Liang Tang
- Department of Biomedical Engineering, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
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29
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Wang J, Wang Y, Liu S, Wang H, Zhang X, Song X, Yu J, Huang J. Primer remodeling amplification-activated multisite-catalytic hairpin assembly enabling the concurrent formation of Y-shaped DNA nanotorches for the fluorescence assay of ochratoxin A. Analyst 2019; 144:3389-3397. [PMID: 30990481 DOI: 10.1039/c9an00316a] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
DNA can be configured into unique high-order structures due to its significantly high programmability, such as a three-way junction-based structure (denoted Y-shaped DNA), for further applications. Herein, we report a label-free fluorescent signal-on biosensor based on the target-driven primer remodeling rolling circle amplification (RCA)-activated multisite-catalytic hairpin assembly (CHA) enabling the concurrent formation of Y-shaped DNA nanotorches (Y-DNTs) for ultrasensitive detection of ochratoxin A (OTA). Two kinds of masterfully-designed probes, termed Complex I and II, were pre-prepared by the combination of a circular template (CT) with an OTA aptamer (S1), a substrate probe (S2) and hairpin probe 1 (HP1), respectively. Target OTA specifically binds to Complex I, resulting in the release of the remnant element in S2 and successive remodeling into a mature primer for RCA by phi29 DNA polymerase, thus a usable primer-CT complex is produced, which actuates primary RCA. Then, numerous Complex II probes can anneal with the first-generation RCA product (RP) with multiple sites to activate the CHA process. With the participation of endonuclease IV (Endo IV) and phi29, HP1 as a pre-primer containing a tetrahydrofuran abasic site mimic (AP site) in Complex II is converted into a mature primer to initiate additional rounds of RCA. So, countless Y-DNTs are formed concurrently containing a G-quadruplex structure that enables the N-methylmesoporphyrin IX (NMM) to be embedded, generating remarkably strong fluorescence signals. The biosensor was demonstrated to enable rapid and accurate highly efficient and selective detection of OTA with an improved detection limit of as low as 0.0002 ng mL-1 and a widened dynamic range of over 4 orders of magnitude. Meanwhile, this method was proven to be capable of being used to analyze actual samples. Therefore, this proposed strategy may be established as a useful and practical platform for the ultrasensitive detection of mycotoxins in food safety testing.
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Affiliation(s)
- Jingfeng Wang
- School of Biological Sciences and Technology, University of Jinan, Jinan 250022, P.R. China.
| | - Yu Wang
- School of Biological Sciences and Technology, University of Jinan, Jinan 250022, P.R. China.
| | - Su Liu
- School of Water Conservancy and Environment, University of Jinan, Jinan 250022, P.R. China
| | - Haiwang Wang
- School of Biological Sciences and Technology, University of Jinan, Jinan 250022, P.R. China.
| | - Xue Zhang
- School of Biological Sciences and Technology, University of Jinan, Jinan 250022, P.R. China.
| | - Xiaolei Song
- School of Water Conservancy and Environment, University of Jinan, Jinan 250022, P.R. China
| | - Jinghua Yu
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P.R. China
| | - Jiadong Huang
- School of Biological Sciences and Technology, University of Jinan, Jinan 250022, P.R. China. and Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P.R. China
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30
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Zheng X, Yang J, Zhou C, Zhang C, Zhang Q, Wei X. Allosteric DNAzyme-based DNA logic circuit: operations and dynamic analysis. Nucleic Acids Res 2019; 47:1097-1109. [PMID: 30541100 PMCID: PMC6379719 DOI: 10.1093/nar/gky1245] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Revised: 11/29/2018] [Accepted: 12/03/2018] [Indexed: 12/29/2022] Open
Abstract
Recently, due to the dual roles of DNA and enzyme, DNAzyme has been widely used in the field of DNA circuit, which has a wide range of applications in bio-engineered system, information processing and biocomputing. In fact, the activity of DNAzymes was regulated by subunits assembly, pH control and metal ions triggers. However, those regulations required to change the sequences of whole DNAzyme, as separating parts and inserting extra DNA sequence. Inspired by the allosteric regulation of proteins in nature, a new allosteric strategy is proposed to regulate the activity of DNAzyme without DNA sequences changes. In this strategy, DNA strand displacement was used to regulate the DNAzyme structure, through which the activity of DNAzyme was well controlled. The strategy was applied to E6-type DNAzymes, and the operations of DNA logic circuit (YES, OR, AND, cascading and feedback) were established and simulated with the dynamic analyses. The allosteric regulation has potential to construct more complicated molecular systems, which can be applied to bio-sensing and detection.
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Affiliation(s)
- Xuedong Zheng
- College of Computer Science, Shenyang Aerospace University, Shenyang 110136, China
| | - Jing Yang
- School of Control and Computer Engineering, North China Electric Power University, Beijing 102206, China
| | - Changjun Zhou
- College of Mathematics and Computer sciences, Zhejiang Normal University, Jinhua, 321004, China
| | - Cheng Zhang
- School of Electronics Engineering and Computer Science, Peking University, Key laboratory of High Confidence Software Technologies, Ministry of Education, Beijing 100871, China
| | - Qiang Zhang
- Key Laboratory of Advanced Design and Intelligent Computing, Dalian University, Ministry of Education, Dalian 116622, China
- School of Computer Scicence and Technology, Dalian University of Technology, Dalian 116024, China
| | - Xiaopeng Wei
- Key Laboratory of Advanced Design and Intelligent Computing, Dalian University, Ministry of Education, Dalian 116622, China
- School of Computer Scicence and Technology, Dalian University of Technology, Dalian 116024, China
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31
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Zhou L, Wang Y, Yang C, Xu H, Luo J, Zhang W, Tang X, Yang S, Fu W, Chang K, Chen M. A label-free electrochemical biosensor for microRNAs detection based on DNA nanomaterial by coupling with Y-shaped DNA structure and non-linear hybridization chain reaction. Biosens Bioelectron 2019; 126:657-663. [DOI: 10.1016/j.bios.2018.11.028] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Revised: 11/16/2018] [Accepted: 11/18/2018] [Indexed: 01/11/2023]
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32
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Yan Q, Duan Q, Huang Y, Guo J, Zhong L, Wang H, Yi G. Symmetric exponential amplification reaction-based DNA nanomachine for the fluorescent detection of nucleic acids. RSC Adv 2019; 9:41305-41310. [PMID: 35540087 PMCID: PMC9076420 DOI: 10.1039/c9ra08854g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Accepted: 11/28/2019] [Indexed: 11/21/2022] Open
Abstract
By introducing palindromic sequences into the classical exponential amplification reaction (EXPAR), we constructed a new palindromic fragment-incorporated multifunctional hairpin probe (P-HP)-mediated symmetric exponential amplification reaction (S-EXPAR), to significantly reduce the background signal caused by inherent nonspecific amplification. A G-triplex/ThT complex was used as the signal reporter for the proposed label-free DNA nanomachine. The P-HP consists of five functional regions: a C-rich region (C), a target DNA recognition region (T′), two nicking sites (X′) and a palindromic fragment (P). When target DNA (T) hybridizes with P-HP, the palindromic fragment at the 3′ end of P-HP is fully exposed. Then, the P-HP/T duplexes hybridize with each other through the exposed P, and EXPAR occurs automatically and continuously on both sides of P under the synergistic effect of polymerase and nicking endonuclease. This is called the S-EXPAR assay. In this system, one T converts to a large number of G-triplex fragments, which can combine with ThT within a short time. The G-triplex/ThT complexes formed act as the signal reporter in a label-free and environmentally friendly format. In this way, the limit of detection of this method is as low as 10 pM with a dynamic response range of 10 pM to 300 nM. In addition, this method can detect other nucleic acids by simply changing the T′ region of the P-HP. Thus, the proposed DNA nanomachine is a potential alternative method for nucleic acid detection. This label-free and ultra-low background signal DNA nanomachine was based on P-HP mediated S-EXPAR and the G-triplex/ThT complex.![]()
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Affiliation(s)
- Qi Yan
- Key Laboratory of Clinical Laboratory Diagnostics (Ministry of Education of China)
- Department of Laboratory Medicine
- Chongqing Medical University
- Chongqing
- P. R. China
| | - Qiuyue Duan
- Key Laboratory of Clinical Laboratory Diagnostics (Ministry of Education of China)
- Department of Laboratory Medicine
- Chongqing Medical University
- Chongqing
- P. R. China
| | - Yuqi Huang
- Key Laboratory of Clinical Laboratory Diagnostics (Ministry of Education of China)
- Department of Laboratory Medicine
- Chongqing Medical University
- Chongqing
- P. R. China
| | - Jing Guo
- Department of Clinical Laboratory
- Qingdao Municipal Hospital
- Qingdao
- P. R. China
| | - Liang Zhong
- Key Laboratory of Clinical Laboratory Diagnostics (Ministry of Education of China)
- Department of Laboratory Medicine
- Chongqing Medical University
- Chongqing
- P. R. China
| | - Hong Wang
- Key Laboratory of Clinical Laboratory Diagnostics (Ministry of Education of China)
- Department of Laboratory Medicine
- Chongqing Medical University
- Chongqing
- P. R. China
| | - Gang Yi
- Key Laboratory of Clinical Laboratory Diagnostics (Ministry of Education of China)
- Department of Laboratory Medicine
- Chongqing Medical University
- Chongqing
- P. R. China
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