1
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Li D, Liu Y, Li Y, Xiang Y, Yuan R. Simultaneous and Sensitive Sensing of Intracellular MicroRNA and mRNA for the Detection of the PI3K/AKT Signaling Pathway in Live Cells. Anal Chem 2024; 96:3329-3334. [PMID: 38366976 DOI: 10.1021/acs.analchem.3c04135] [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: 02/19/2024]
Abstract
Simultaneous detection of the concentration variations of microRNA-221 (miRNA-221) and PTEN mRNA molecules in the PI3K/AKT signaling pathway is of significance to elucidate cancer cell migration and invasion, which is useful for cancer diagnosis and therapy. In this work, we show the biodegradable MnO2 nanosheet-assisted and target-triggered DNAzyme recycling signal amplification cascaded approach for the specific detection of the PI3K/AKT signaling pathway in live cells via simultaneous and sensitive monitoring of the variation of intracellular miRNA-221 and PTEN mRNA. Our nanoprobes enable highly sensitive and multiplexed sensing of miRNA-221 and PTEN mRNA with low detection limits of 23.6 and 0.59 pM in vitro, respectively, due to the signal amplification cascades. Importantly, the nanoprobes can be readily delivered into cancer cells and the MnO2 nanosheets can be degraded by intracellular glutathione to release the Mn2+ cofactors to trigger multiple DNAzyme recycling cycles to show highly enhanced fluorescence at different wavelengths to realize sensitive and multiplexed imaging of PTEN mRNA and miRNA-221 for detecting the PI3K/AKT signaling pathway. Moreover, the regulation of PTEN mRNA expression by miRNA-221 upon stimulation by various drugs can also be verified by our method, indicating its promising potentials for both disease diagnosis and drug screening.
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Affiliation(s)
- Daxiu Li
- College of Pharmacy and Biological Engineering, Chongqing University of Technology, Chongqing 400054, PR China
| | - Yinghan Liu
- College of Pharmacy and Biological Engineering, Chongqing University of Technology, Chongqing 400054, PR China
| | - Yuhao Li
- College of Pharmacy and Biological Engineering, Chongqing University of Technology, Chongqing 400054, PR China
| | - Yun Xiang
- Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Ruo Yuan
- Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
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2
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Su J, Zheng W, Pan Y. Proximity ligation initiated DNAzyme-powered catalytic hairpin assembly for sensitive and accurate microRNA analysis. Anal Biochem 2023; 680:115299. [PMID: 37633354 DOI: 10.1016/j.ab.2023.115299] [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: 06/01/2023] [Revised: 07/11/2023] [Accepted: 08/22/2023] [Indexed: 08/28/2023]
Abstract
MicroRNAs (miRNAs) play a significant role in regulating diverse physiological processes, and are regarded as novel diagnostic biomarkers. However, the sensitive and reliable miRNA detection remains a huge challenge. Herein, we propose a proximity ligated initiated magnesium ion (Mg2+)-dependent DNAzyme-powered signal cascade for sensitive, accurate and reliable detection of miRNAs. Three signal amplification processes are involved in this approach, including the target miRNA recycle, DNAzyme powered substrate cleavage, and catalytic hairpin reaction (CHA). Based on this, the approach shows a low limit of detection of 523 aM and a wide detection range of 7 orders of magnitudes, which is comparable or superior to most of the former miRNA detection methods. In addition, the approach also possesses a high selectivity to target miRNA, suggesting a potential promising future of the approach for rapid detection of miRNAs in the application of developing novel tools for skin cancer diagnosis, and recovery evaluation.
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Affiliation(s)
- Jiaguang Su
- Department of Dermatology, The First Affiliated Hospital of Guangxi Medical University, Nanning, The Guangxi Zhuang Autonomous Region, 530021, China
| | - Wenjun Zheng
- Department of Dermatology, The First Affiliated Hospital of Guangxi Medical University, Nanning, The Guangxi Zhuang Autonomous Region, 530021, China
| | - Yanbin Pan
- Department of Dermatology, The Second Nanning People's Hospital, Nanning, The Guangxi Zhuang Autonomous Region, 530031, China.
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3
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Zhu X, Xu J, Ling G, Zhang P. Tunable metal-organic frameworks assist in catalyzing DNAzymes with amplification platforms for biomedical applications. Chem Soc Rev 2023; 52:7549-7578. [PMID: 37817667 DOI: 10.1039/d3cs00386h] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/12/2023]
Abstract
Various binding modes of tunable metal organic frameworks (MOFs) and functional DNAzymes (Dzs) synergistically catalyze the emergence of abundant functional nanoplatforms. Given their serial variability in formation, structural designability, and functional controllability, Dzs@MOFs tend to be excellent building blocks for the precise "intelligent" manufacture of functional materials. To present a clear outline of this new field, this review systematically summarizes the progress of Dz integration into MOFs (MOFs@Dzs) through different methods, including various surface infiltration, pore encapsulation, covalent binding, and biomimetic mineralization methods. Atomic-level and time-resolved catalytic mechanisms for biosensing and imaging are made possible by the complex interplay of the distinct molecular structure of Dzs@MOF, conformational flexibility, and dynamic regulation of metal ions. Exploiting the precision of DNAzymes, MOFs@Dzs constructed a combined nanotherapy platform to guide intracellular drug synthesis, photodynamic therapy, catalytic therapy, and immunotherapy to enhance gene therapy in different ways, solving the problems of intracellular delivery inefficiency and insufficient supply of cofactors. MOFs@Dzs nanostructures have become excellent candidates for biosensing, bioimaging, amplification delivery, and targeted cancer gene therapy while emphasizing major advancements and seminal endeavors in the fields of biosensing (nucleic acid, protein, enzyme activity, small molecules, and cancer cells), biological imaging, and targeted cancer gene delivery and gene therapy. Overall, based on the results demonstrated to date, we discuss the challenges that the emerging MOFs@Dzs might encounter in practical future applications and briefly look forward to their bright prospects in other fields.
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Affiliation(s)
- Xiaoguang Zhu
- Wuya College of Innovation, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, China.
| | - Jiaqi Xu
- Wuya College of Innovation, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, China.
| | - Guixia Ling
- Wuya College of Innovation, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, China.
| | - Peng Zhang
- Wuya College of Innovation, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, China.
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4
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Su J, Sun C, Du J, Xing X, Wang F, Dong H. RNA-Cleaving DNAzyme-Based Amplification Strategies for Biosensing and Therapy. Adv Healthc Mater 2023; 12:e2300367. [PMID: 37084038 DOI: 10.1002/adhm.202300367] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 03/29/2023] [Indexed: 04/22/2023]
Abstract
Since their first discovery in 1994, DNAzymes have been extensively applied in biosensing and therapy that act as recognition elements and signal generators with the outstanding properties of good stability, simple synthesis, and high sensitivity. One subset, RNA-cleaving DNAzymes, is widely employed for diverse applications, including as reporters capable of transmitting detectable signals. In this review, the recent advances of RNA-cleaving DNAzyme-based amplification strategies in scaled-up biosensing are focused, the application in diagnosis and disease treatment are also discussed. Two major types of RNA-cleaving DNAzyme-based amplification strategies are highlighted, namely direct response amplification strategies and combinational response amplification strategies. The direct response amplification strategies refer to those based on novel designed single-stranded DNAzyme, and the combinational response amplification strategies mainly include two-part assembled DNAzyme, cascade reactions, CHA/HCR/RCA, DNA walker, CRISPR-Cas12a and aptamer. Finally, the current status of DNAzymes, the challenges, and the prospects of DNAzyme-based biosensors are presented.
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Affiliation(s)
- Jiaxin Su
- Beijing Key Laboratory for Bioengineering and Sensing Technology, School of Chemistry & Biological Engineering, University of Science & Technology Beijing, 30 Xueyuan Road, Beijing, 100083, China
| | - Chenyang Sun
- Beijing Key Laboratory for Bioengineering and Sensing Technology, School of Chemistry & Biological Engineering, University of Science & Technology Beijing, 30 Xueyuan Road, Beijing, 100083, China
| | - Jinya Du
- Beijing Key Laboratory for Bioengineering and Sensing Technology, School of Chemistry & Biological Engineering, University of Science & Technology Beijing, 30 Xueyuan Road, Beijing, 100083, China
| | - Xiaotong Xing
- Marshall Laboratory of Biomedical Engineering, Shenzhen Key Laboratory for Nano-Biosensing Technology, School of Biomedical Engineering, Shenzhen University Medical School, Shenzhen University, Shenzhen, Guangdong, 518060, China
| | - Fang Wang
- Marshall Laboratory of Biomedical Engineering, Shenzhen Key Laboratory for Nano-Biosensing Technology, School of Biomedical Engineering, Shenzhen University Medical School, Shenzhen University, Shenzhen, Guangdong, 518060, China
- Guangdong Laboratory of Artificial Intelligence and Digital Economy (SZ), Shenzhen, Guangdong, 518060, P. R. China
| | - Haifeng Dong
- Beijing Key Laboratory for Bioengineering and Sensing Technology, School of Chemistry & Biological Engineering, University of Science & Technology Beijing, 30 Xueyuan Road, Beijing, 100083, China
- Marshall Laboratory of Biomedical Engineering, Shenzhen Key Laboratory for Nano-Biosensing Technology, School of Biomedical Engineering, Shenzhen University Medical School, Shenzhen University, Shenzhen, Guangdong, 518060, China
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5
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Wang J, Wen L, Cao R, Gao X, Li X, Xu E, Zhang Q, Xu S, Dai C, Xue Q. Metal sulfide nanoparticle-based dual barcode-triggered DNAzyme cascade for multiplex miRNA detection in a single assay. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2022; 14:4523-4530. [PMID: 36318214 DOI: 10.1039/d2ay01367c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Single miRNAs are not specific and accurate enough to meet the strict diagnosis requirements in practice. Therefore, simultaneous monitoring of multiplexed miRNA in biological samples can not only improve the accuracy and specificity of bioassays but also avoid the squandering of valuable biological specimens. Herein, we designed a metal sulfide nanoparticle-based dual barcode-triggered DNAzyme cascade strategy for the sensitive and simultaneous multiplex miRNA detection in a single assay. Firstly, the capture probes (H1, H2) specifically recognize targets (miRNA-21, miRNA-141), exposing the stem of H1 and H2. Then, with the introduction of a detection probe (CuS-H3, ZnS-H4), the exposed H1 and H2 catalyze the hairpin assembly (CHA) reaction, realizing target miRNA recycling, and forming H1/H3-CuS and H2/H4-ZnS complexes. Subsequently, the formed H1/H3-CuS and H2/H4-ZnS complexes are encoded on magnetic beads through the biotin/streptavidin interaction. The CuS and ZnS nanoparticles captured by magnetic beads release thousands of Cu2+ and Zn2+via the cation exchange reaction. Finally, the released Cu2+ and Zn2+ specially activate the DNAzyme of the catalytic and molecular beacon (CAMB) system. The CAMB system affords an amplified fluorescence signal output by cycling and regenerating the metal ion-dependent DNAzyme to realize multiple enzymatic turnovers. Benefiting from target recycling, nanoparticle amplification, and catalytic and molecular beacon amplification, there is substantial amplification and the target miRNAs can be detected at 0.06 fM (miRNA-21) and 0.048 fM (miRNA-141) in a single assay. Furthermore, the high selectivity and accuracy of the assay were proved by practical analysis of different cancer cells, which exhibited good practicability in multiplex miRNA detection in clinical sera. The results indicate that the proposed strategy holds great potential for the sensitive detection of multiplex cancer biomarkers and offers the opportunity for future applications in clinical diagnosis.
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Affiliation(s)
- Jiao Wang
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, 252059, Shandong, China.
| | - Liyuan Wen
- Earthquake Monitoring Center Station of Liaocheng, Earthquake Administration of Shandong Province, China
| | - Ruyuan Cao
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, 252059, Shandong, China.
| | - Xiaorong Gao
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, 252059, Shandong, China.
| | - Xia Li
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, 252059, Shandong, China.
| | - Ensheng Xu
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, 252059, Shandong, China.
| | - Qi Zhang
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, 252059, Shandong, China.
| | - Shuling Xu
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, 252059, Shandong, China.
| | - Caifeng Dai
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, Ji'nan 250012, Shandong, P. R. China.
| | - Qingwang Xue
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, 252059, Shandong, China.
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6
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Zhang LM, Gao QX, Xie BP, Chen J, Duan WJ. Highly accelerated isothermal nucleic acid amplifications by butanol dehydration: simple, more efficient, and ultrasensitive. Chem Commun (Camb) 2022; 58:5793-5796. [PMID: 35466974 DOI: 10.1039/d2cc01589g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Enzyme-free isothermal amplification reactions for nucleic acid analysis usually take several hours to obtain sufficient detection sensitivity, which limits their practical applications. Herein, we report a butanol dehydration-based method to greatly improve both the efficiency and the sensitivity of nucleic acid detections by three types of enzyme-free isothermal amplification reactions. The reaction time has been shortened from 3 h to 5-20 min with higher sensitivities. Especially in the DNAzyme-based amplification, the detection limit can be lowered over 16 000-fold to 3 × 10-17 mol L-1 in 2 h compared to the normal 3 h-reaction. We demonstrate that the high amplification efficiencies are attributed to the greatly accelerated reaction rates in the extremely concentrated reaction solutions caused by the butanol dehydration. This approach enhances the potential of applications of isothermal amplification reactions in clinical rapid tests, nanostructure synthesis, etc. and is promising to expand to other types of chemical reactions.
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Affiliation(s)
- Li-Min Zhang
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China.
| | - Qing-Xin Gao
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China.
| | - Bao-Ping Xie
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China.
| | - Jun Chen
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China.
| | - Wen-Jun Duan
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China.
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7
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Programming a DNA tetrahedral nanomachine as an integrative tool for intracellular microRNA biosensing and stimulus-unlocked target regulation. Mater Today Bio 2022; 15:100276. [PMID: 35711289 PMCID: PMC9194454 DOI: 10.1016/j.mtbio.2022.100276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Revised: 04/26/2022] [Accepted: 04/30/2022] [Indexed: 11/22/2022]
Abstract
The synchronous detection and regulation of microRNAs (miRNAs) are essential for the early tumor diagnosis and treatment but remains a challenge. An integrative DNA tetrahedral nanomachine was self-assembled for sensitive detection and negative feedback regulation of intracellular miRNAs. This nanomachine comprised a DNA tetrahedron nanostructure as the framework, and a miRNA inhibitor-controlled allosteric DNAzyme as the core. The DNA tetrahedron brought the DNAzyme and the substrate in spatial proximity and facilitated the cellular uptake of DNAzyme. In allosteric regulation of DNAzyme, the locked tetrahedral DNAzyme (L-tetra-D) and active tetrahedral DNAzyme (A-Tetra-D) were controlled by miRNA inhibitor. The combination of miRNA inhibitor and target could trigger the conformational change from L-tetra-D to A-Tetra-D. A-Tetra-D cleaved the substrate and released fluorescence for intracellular miRNA biosensing. The DNA tetrahedral nanomachine showed excellent sensitivity (with detection limit down to 0.77 pM), specificity (with one-base mismatch discrimination), biocompatibility and stability. Simultaneously, miRNA stimulus-unlocked inhibitor introduced by our nanomachine exhibited the synchronous regulation of target cells, of which regulatory performance has been verified by the upregulated levels of downstream genes/proteins and the increased cellular apoptosis. Our study demonstrated that the DNA tetrahedral nanomachine is a promising biosense-and-treat tool for the synchronous detection and regulation of intracellular miRNA, and is expected to be applied in the early diagnosis and tailored management of cancers.
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8
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Core–shell Au@PtAg modified TiO2–Ti3C2 heterostructure and target-triggered DNAzyme cascade amplification for photoelectrochemical detection of ochratoxin A. Anal Chim Acta 2022; 1216:339943. [DOI: 10.1016/j.aca.2022.339943] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Revised: 05/09/2022] [Accepted: 05/11/2022] [Indexed: 01/19/2023]
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9
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Wang C, Liu Y, Chen R, Wang X, Wang Y, Wei J, Zhang K, Zhang C. Electrochemical biosensing of circulating microRNA-21 in cerebrospinal fluid of medulloblastoma patients through target-induced redox signal amplification. Mikrochim Acta 2022; 189:105. [DOI: 10.1007/s00604-022-05210-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 01/30/2022] [Indexed: 12/21/2022]
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10
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Solovjev AM, Galkin II, Medved'ko AV, Pletjushkina OY, Zhao S, Sakharov IY. Comparison of chemiluminescent heterogeneous and homogeneous–heterogeneous assays coupled with isothermal circular strand-displacement polymerization reaction amplification for the quantification of miRNA-141. Analyst 2022; 147:4293-4300. [DOI: 10.1039/d2an00921h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A heterogeneous and homogeneous–heterogeneous chemiluminescent microplate assay was developed for the determination of miRNA-141 levels in human cells.
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Affiliation(s)
- Anton M. Solovjev
- Department of Chemistry, Lomonosov Moscow State University, Leninskie gory, Bldg.1, Moscow, 119991, Russia
| | - Ivan I. Galkin
- A.N. Belozersky Research Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Leninskie gory, Bldg.1, Moscow 119992, Russia
| | - Alexey V. Medved'ko
- N.D. Zelinsky Institute of Organic Chemistry RAS, Leninsky prospect, 47, Moscow, 119991, Russia
| | - Olga Yu. Pletjushkina
- A.N. Belozersky Research Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Leninskie gory, Bldg.1, Moscow 119992, Russia
| | - Shulin Zhao
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, Guangxi Normal University, Guilin 541004, China
| | - Ivan Yu. Sakharov
- Department of Chemistry, Lomonosov Moscow State University, Leninskie gory, Bldg.1, Moscow, 119991, Russia
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11
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Xia LY, Tang YN, Zhang J, Dong TY, Zhou RX. Advances in the DNA Nanotechnology for the Cancer Biomarkers Analysis: Attributes and Applications. Semin Cancer Biol 2022; 86:1105-1119. [PMID: 34979273 DOI: 10.1016/j.semcancer.2021.12.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2021] [Revised: 12/26/2021] [Accepted: 12/29/2021] [Indexed: 02/07/2023]
Abstract
The most commonly used clinical methods are enzyme-linked immunosorbent assay (ELISA) and quantitative PCR (qPCR) in which ELISA was applied for the detection of protein biomarkers and qPCR was especially applied for nucleic acid biomarker analysis. Although these constructed methods have been applied in wide range, they also showed some inherent shortcomings such as low sensitivity, large sample volume and complex operations. At present, many methods have been successfully constructed on the basis of DNA nanotechnology with the merits of high accuracy, rapid and simple operation for cancer biomarkers assay. In this review, we summarized the bioassay strategies based on DNA nanotechnology from the perspective of the analytical attributes for the first time and discussed and the feasibility of the reported strategies for clinical application in the future.
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Affiliation(s)
- Ling-Ying Xia
- Biliary Surgical Department of West China Hospital, Sichuan University, Chengdu, Sichuan 610064, PR China; Analytical & Testing Center, Sichuan University, Chengdu, Sichuan 610064, PR China
| | - Ya-Nan Tang
- Analytical & Testing Center, Sichuan University, Chengdu, Sichuan 610064, PR China
| | - Jie Zhang
- Biliary Surgical Department of West China Hospital, Sichuan University, Chengdu, Sichuan 610064, PR China
| | - Tian-Yu Dong
- College of Chemistry, Sichuan University Chengdu, Sichuan 610064, PR China
| | - Rong-Xing Zhou
- Biliary Surgical Department of West China Hospital, Sichuan University, Chengdu, Sichuan 610064, PR China.
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12
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Lin Q, Wu J, Jiang L, Kong D, Xing C, Lu C. Target-driven assembly of DNAzyme probes for simultaneous electrochemical detection of multiplex microRNAs. Analyst 2021; 147:262-267. [PMID: 34935782 DOI: 10.1039/d1an02036f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this work, we employed target-driven assembly of a Mg2+-dependent DNAzyme to develop an ultrasensitive electrochemical biosensor for the simultaneous detection of miRNA-21 and miRNA-141. The target miRNAs could hybridize with two partial DNAzymes, facilitating the formation of a stable and active Mg2+-dependent DNAzyme. With the help of the Mg2+ cofactor, the DNAzyme could circularly cleave the ferrocene (Fc) or methylene blue (MB) labelled hairpin probes and release Fc and MB labels from the electrode surface, which could significantly amplify the current suppression to achieve multiple detection of small amounts of miRNA-21 and miRNA-141. This electrochemical biosensor showed high sensitivity and selectivity for the simultaneous detection of miRNA-21 and miRNA-141. Furthermore, the proposed method was also successfully applied for the determination of miRNA-21 and miRNA-141 from diluted serum samples. Overall, the proposed sensor showed several considerable advantages including simple preparation, high sensitivity, and enzyme-free signal amplification. Therefore, the proposed electrochemical biosensor could be used as a highly efficient amplification strategy for simultaneous detection of various miRNA biomarkers in bioanalysis and clinical diagnostics.
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Affiliation(s)
- Qitian Lin
- 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.
| | - Junye Wu
- 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.
| | - Lili Jiang
- 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.
| | - Dexian Kong
- College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Chao Xing
- Fujian Key Laboratory of Functional Marine Sensing Materials, Center for Advanced Marine Materials and Smart Sensors, College of Materials and Chemical Engineering, 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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13
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Wu Y, Li Z, Shi M, Yuan K, Meng HM, Qu L, Li Z. Programmable DNAzyme Computing for Specific In Vivo Imaging: Intracellular Stimulus-Unlocked Target Sensing and Signal Amplification. Anal Chem 2021; 93:12456-12463. [PMID: 34449199 DOI: 10.1021/acs.analchem.1c02699] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Molecular probe that enables in vivo imaging is the cornerstone of accurate disease diagnosis, prognostic estimation, and therapies. Although several nucleic acid-based probes have been reported for tumor detection, it is still a challenge to develop programmable methodology for accurately identifying tumors in vivo. Herein, a reconfigurable DNA hybridization-based reaction was constructed to assemble DNAzyme computing that contains an intracellular miRNA-unlocked entropy-driven catalysis module and an endogenous metal ion-responsive DNAzyme module for specific in vivo imaging. By reasonable design, the programmable DNAzyme computing can not only successfully distinguish tumor cells from normal cells but also enable tumor imaging in living mice. Due to its excellent operation with high specificity and sensitivity, this design may be broadly applied in the biological study and personalized medicine.
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Affiliation(s)
- Yanan Wu
- College of Chemistry, Green Catalysis Center, Henan Joint International Research Laboratory of Green Construction of Functional Molecules and Their Bioanalytical Applications, Zhengzhou Key Laboratory of Functional Nanomaterial and Medical Theranostic, Zhengzhou University, Zhengzhou 450001, China
| | - Zhijun Li
- College of Chemistry, Green Catalysis Center, Henan Joint International Research Laboratory of Green Construction of Functional Molecules and Their Bioanalytical Applications, Zhengzhou Key Laboratory of Functional Nanomaterial and Medical Theranostic, Zhengzhou University, Zhengzhou 450001, China
| | - Mingqing Shi
- College of Chemistry, Green Catalysis Center, Henan Joint International Research Laboratory of Green Construction of Functional Molecules and Their Bioanalytical Applications, Zhengzhou Key Laboratory of Functional Nanomaterial and Medical Theranostic, Zhengzhou University, Zhengzhou 450001, China
| | - Kun Yuan
- College of Chemistry, Green Catalysis Center, Henan Joint International Research Laboratory of Green Construction of Functional Molecules and Their Bioanalytical Applications, Zhengzhou Key Laboratory of Functional Nanomaterial and Medical Theranostic, Zhengzhou University, Zhengzhou 450001, China
| | - Hong-Min Meng
- College of Chemistry, Green Catalysis Center, Henan Joint International Research Laboratory of Green Construction of Functional Molecules and Their Bioanalytical Applications, Zhengzhou Key Laboratory of Functional Nanomaterial and Medical Theranostic, Zhengzhou University, Zhengzhou 450001, China
| | - Lingbo Qu
- College of Chemistry, Green Catalysis Center, Henan Joint International Research Laboratory of Green Construction of Functional Molecules and Their Bioanalytical Applications, Zhengzhou Key Laboratory of Functional Nanomaterial and Medical Theranostic, Zhengzhou University, Zhengzhou 450001, China
| | - Zhaohui Li
- College of Chemistry, Green Catalysis Center, Henan Joint International Research Laboratory of Green Construction of Functional Molecules and Their Bioanalytical Applications, Zhengzhou Key Laboratory of Functional Nanomaterial and Medical Theranostic, Zhengzhou University, Zhengzhou 450001, China
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14
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Zhang C, Zhang N, Xu Y, Feng J, Yao T, Wang F, Ma Z, Han H. Fenton reaction-mediated dual-attenuation of signal for ultrasensitive amperometric immunoassay. Biosens Bioelectron 2021; 178:113009. [PMID: 33493899 DOI: 10.1016/j.bios.2021.113009] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 01/07/2021] [Accepted: 01/15/2021] [Indexed: 12/20/2022]
Abstract
In order to alter the complexion of immunoprobe with large impedance as negative factor in sensitivity of amperometric immunosensor, a strategy of Fenton reaction-mediated dual-attenuation of signal was proposed. Herein, metal-polydopamine-Fe3+ composite with the ability of Fenton reaction was initially prepared as immunoprobe for an ultrasensitive immunoassay. The polymerization of dopamine occurred on the surface of ZIF-67 to gain the metal-polydopamine shell, which possessed rich functional groups, negative charge and high specific surface. Then the prepared functional shell was further used to absorb Fe3+ and immobilize labeling antibody as immunoprobe, which was used to construct a sandwich type immunosensor. With addition of H2O2 and aniline, Fenton reaction was triggered to produce hydroxyl radicals, which can not only decrease the current value by degrading methylene blue molecules, but also further initiate aniline to polymerize into non-conductive polyaniline for successive abatement of signal intensity. Therefore, the dual-attenuation of signal model rendered the immunoprobe into a favorable factor and synchronously enhance sensitivity. Expectedly, the detection performance with a linear range from 1.0 × 10-4-100 ng mL-1 and ultralow detection limit of 9.07 × 10-5 ng mL-1 toward neuron-specific enolase was obtained under optimal conditions. This work offered a novel tactic for enhancing sensitivity of immunosensor through the preparation of functional immunoprobe and its rational utilization as signal enhancer.
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Affiliation(s)
- Chi Zhang
- Department of Chemistry, Capital Normal University, Beijing, 100048, China
| | - Nana Zhang
- Department of Chemistry, Capital Normal University, Beijing, 100048, China
| | - Yang Xu
- Department of Chemistry, Capital Normal University, Beijing, 100048, China
| | - Jiejie Feng
- Department of Chemistry, Capital Normal University, Beijing, 100048, China
| | - Tao Yao
- Department of Chemistry, Capital Normal University, Beijing, 100048, China
| | - Fei Wang
- Department of Chemistry, Capital Normal University, Beijing, 100048, China
| | - Zhanfang Ma
- Department of Chemistry, Capital Normal University, Beijing, 100048, China.
| | - Hongliang Han
- Department of Chemistry, Capital Normal University, Beijing, 100048, China.
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