1
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Wang X, Qin Z, Zhang F, Li C, Yuan X, Yang J, Yang H. Label-free electrochemical biosensor based on dual amplification of gold nanoparticles and polycaprolactones for CEA detection. Talanta 2024; 278:126468. [PMID: 38963975 DOI: 10.1016/j.talanta.2024.126468] [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: 08/10/2023] [Revised: 06/17/2024] [Accepted: 06/22/2024] [Indexed: 07/06/2024]
Abstract
Carcinoembryonic Antigen (CEA), an acidic glycoprotein with human embryonic antigen properties, is found on the surface of cancer cells that have differentiated from endodermal cells. This paper presents a label-free electrochemical immunoassay for the dual amplification detection of CEA using gold nanoparticles loaded with polypyrrole polydopamine (Au/PPy-PDA) and polymerized polycaprolactone (Ng-PCL) prepared by ring-opening polymerization (ROP). First, the composite Au/PPy-PDA was adhered to the electrode surface. Then, gold nanoparticles form a Au-S bond with the sulfhydryl group in Apt1 to secure it on the electrode surface. Subsequently, the non-specific binding sites on the electrodes surface are closed by bovine serum albumin (BSA). Next, CEA is dropped onto the electrode surface, which is immobilized by antigen-antibody specific recognition, and the carboxyl-functionalized Apt2 forms a "sandwich structure" of antibody-antigen-antibody by specific recognition. Polymeric Ng-PCL is adhered to the electrode surface, leading to an increase in the electrochemical impedance signal, resulting in a complete chain of signal analysis. Finally, the response signal is detected by electrochemical impedance spectroscopy (EIS). Under optimal experimental conditions, the method has the advantages of high sensitivity and wide linear range (1 pg mL-1∼100 ng mL-1), and the lower limit of detection (LOD) is 0.234 pg mL-1. And it has the same high sensitivity, selectivity and interference resistance for the real samples detection. Thus, it provides a new way of thinking about biomedical and clinical diagnosis.
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Affiliation(s)
- Xia Wang
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, PR China.
| | - Zhe Qin
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, PR China
| | - Fei Zhang
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, PR China.
| | - Chong Li
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, PR China
| | - Xianxian Yuan
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, PR China
| | - Jing Yang
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, PR China
| | - Huaixia Yang
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, PR China
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2
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Zhang Q, Hu J, Li DL, Qiu JG, Jiang BH, Zhang CY. Construction of single-molecule counting-based biosensors for DNA-modifying enzymes: A review. Anal Chim Acta 2024; 1298:342395. [PMID: 38462345 DOI: 10.1016/j.aca.2024.342395] [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: 12/10/2023] [Revised: 02/18/2024] [Accepted: 02/19/2024] [Indexed: 03/12/2024]
Abstract
DNA-modifying enzymes act as critical regulators in a wide range of genetic functions (e.g., DNA damage & repair, DNA replication), and their aberrant expression may interfere with regular genetic functions and induce various malignant diseases including cancers. DNA-modifying enzymes have emerged as the potential biomarkers in early diagnosis of diseases and new therapeutic targets in genomic research. Consequently, the development of highly specific and sensitive biosensors for the detection of DNA-modifying enzymes is of great importance for basic biomedical research, disease diagnosis, and drug discovery. Single-molecule fluorescence detection has been widely implemented in the field of molecular diagnosis due to its simplicity, high sensitivity, visualization capability, and low sample consumption. In this paper, we summarize the recent advances in single-molecule counting-based biosensors for DNA-modifying enzyme (i.e, alkaline phosphatase, DNA methyltransferase, DNA glycosylase, flap endonuclease 1, and telomerase) assays in the past four years (2019 - 2023). We highlight the principles and applications of these biosensors, and give new insight into the future challenges and perspectives in the development of single-molecule counting-based biosensors.
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Affiliation(s)
- Qian Zhang
- Translational Medicine Center, The First Affiliated Hospital of Zhengzhou University, The Academy of Medical Sciences, Zhengzhou University, Zhengzhou, 450052, Henan, China; College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, 250014, China
| | - Juan Hu
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China
| | - Dong-Ling Li
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China
| | - Jian-Ge Qiu
- Translational Medicine Center, The First Affiliated Hospital of Zhengzhou University, The Academy of Medical Sciences, Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Bing-Hua Jiang
- Translational Medicine Center, The First Affiliated Hospital of Zhengzhou University, The Academy of Medical Sciences, Zhengzhou University, Zhengzhou, 450052, Henan, China.
| | - Chun-Yang Zhang
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China.
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3
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Wang G, Xie P, Xu X. Theoretical optimization of a frequency-domain- based color polarization interference sensor via coupling with a Gaussian beam. APPLIED OPTICS 2023; 62:6147-6155. [PMID: 37707082 DOI: 10.1364/ao.495093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Accepted: 07/20/2023] [Indexed: 09/15/2023]
Abstract
In this paper, a Gaussian-beam-coupled color polarization interference (CCPI) sensor with an adjustable digital Gaussian filter was proposed theoretically in the frequency domain. The coupling principle of a traditional color polarization interference (CPI) sensor and a Gaussian beam was investigated, and sensitivity optimization was then implemented. The formation of a doublet is related to the shape of a CPI curve, expected wavelength, and FWHM of the Gaussian beam. Based on the calculated results, the angle between the two polarizers and the obliquity of the wave plate are the two most significant adjusting parameters. The sensitivity of a CCPI sensor is approximately twofold higher than that of a traditional CPI sensor. The sensing range is also related to the FWHM of the Gaussian beam and a larger FWHM usually means a wider sensing range. We also found that the sensitivity would reach a maximum when the incident angle is near the total internal reflection angle. Besides, a longer incident wavelength usually corresponds to a higher sensitivity and the sensitivity could reach as high as 9270 nm/refractive index unit when the resonance wavelength is 977.40 nm.
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Li C, Chen H, Fan T, Zhao J, Ding Z, Lin Z, Sun S, Tan C, Liu F, Jiang H, Tan Y. A visualized automatic particle counting strategy for single‐cell level telomerase activity quantification. VIEW 2023. [DOI: 10.1002/viw.20220078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023] Open
Affiliation(s)
- Chen Li
- State Key Laboratory of Chemical Oncogenomics Shenzhen International Graduate School Tsinghua University Shenzhen China
| | - Hui Chen
- State Key Laboratory of Chemical Oncogenomics Shenzhen International Graduate School Tsinghua University Shenzhen China
| | - Tingting Fan
- State Key Laboratory of Chemical Oncogenomics Shenzhen International Graduate School Tsinghua University Shenzhen China
| | - Jingru Zhao
- State Key Laboratory of Chemical Oncogenomics Shenzhen International Graduate School Tsinghua University Shenzhen China
| | - Zheng Ding
- Department of Urology Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology) Shenzhen China
- Shenzhen Engineering and Technology Center of Minimally Invasive Urology Shenzhen People's Hospital Shenzhen China
| | - Zeyu Lin
- Department of Urology Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology) Shenzhen China
- Shenzhen Engineering and Technology Center of Minimally Invasive Urology Shenzhen People's Hospital Shenzhen China
| | - Shuqing Sun
- State Key Laboratory of Chemical Oncogenomics Shenzhen International Graduate School Tsinghua University Shenzhen China
| | - Chunyan Tan
- State Key Laboratory of Chemical Oncogenomics Shenzhen International Graduate School Tsinghua University Shenzhen China
| | - Feng Liu
- State Key Laboratory of Chemical Oncogenomics Shenzhen International Graduate School Tsinghua University Shenzhen China
| | - Hongtao Jiang
- Department of Urology Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology) Shenzhen China
- Shenzhen Engineering and Technology Center of Minimally Invasive Urology Shenzhen People's Hospital Shenzhen China
| | - Ying Tan
- State Key Laboratory of Chemical Oncogenomics Shenzhen International Graduate School Tsinghua University Shenzhen China
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5
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Zhang Q, Yuan ZZ, Zhang X, Zhang Y, Zou X, Ma F, Zhang CY. Entropy-Driven Self-Assembly of Single Quantum Dot Sensor for Catalytic Imaging of Telomerase in Living Cells. Anal Chem 2022; 94:18092-18098. [PMID: 36519804 DOI: 10.1021/acs.analchem.2c04747] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Telomerase is a highly valuable cancer diagnosis biomarker and a promising cancer therapy target. So far, most telomerase assays are limited by the involvement of tedious procedures, multiple enzymes, and complicated reaction schemes. Sensitive monitoring of low-abundant telomerase in living cells remains a challenge. Herein, we demonstrate an entropy-driven catalytic assembly of quantum dot (QD) sensors for accurate detection and imaging of telomerase activity in living cells. In this sensor, target telomerase specifically catalyzes extension of telomerase primer, and the extended primer subsequently acts as a catalyst to continuously initiate entropy-driven catalytic reaction, generating a large number of fluorophore- and biotin-labeled DNAs that can be self-assembled on the QD surface to induce an efficient Föster resonance energy transfer signal. The proposed sensor requires a single step for both recognition and amplification of the telomerase signal, eliminating the use of either protein enzymes or laborious procedures. Taking advantage of the inherent superiority of single-molecule fluorescence detection and high amplification efficiency of the entropy-driven reaction, this sensor demonstrates single-cell sensitivity for the in vitro assay. Moreover, it is capable of screening the telomerase inhibitor, discriminating different tumor cells from normal ones, and even real-time imaging telomerase in living cells, providing a novel platform for telomerase-associated cancer diagnosis and drug screening.
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Affiliation(s)
- Qian Zhang
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan250014, China
| | - Zhen-Zhen Yuan
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan250014, China
| | - Xinyi Zhang
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan528458, China
| | - Yan Zhang
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan250014, China
| | - Xiaoran Zou
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan250014, China
| | - Fei Ma
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing211189, China
| | - Chun-Yang Zhang
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan250014, China
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6
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An enzyme-free and PCR-free biosensing platform for accurate monitoring of telomerase activity. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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7
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He JL, Tang L, Liao SQ, Guo MT, Wu L, Song Y, Liu S, Cao Z. Label-free palindromic DNA nanospheres as naked-eye colorimetric assay platform for detection of telomerase activity. Talanta 2022. [DOI: 10.1016/j.talanta.2022.123990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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8
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Sun S, Yang Y, Niu H, Luo M, Wu ZS. Design and application of DNA nanostructures for organelle-targeted delivery of anticancer drugs. Expert Opin Drug Deliv 2022; 19:707-723. [PMID: 35618266 DOI: 10.1080/17425247.2022.2083603] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
INTRODUCTION DNA nanostructures targeting organelles are of great significance for the early diagnosis and precise therapy of human cancers. This review is expected to promote the development of DNA nanostructure-based cancer treatment with organelle-level precision in the future. AREAS COVERED In this review, we introduce the different principles for targeting organelles, summarize the progresses in the development of organelle-targeting DNA nanostructures, highlight their advantages and applications in disease treatment, and discuss current challenges and future prospects. EXPERT OPINION Accurate targeting is a basic problem for effective cancer treatment. However, current DNA nanostructures cannot meet the actual needs. Targeting specific organelles is expected to further improve the therapeutic effect and overcome tumor cell resistance, thereby holding great practical significance for tumor treatment in the clinic. With the deepening of the research on the molecular mechanism of disease development, especially on tumorigenesis and tumor progression, and increasing understanding of the behavior of biological materials in living cells, more versatile DNA nanostructures will be constructed to target subcellular organelles for drug delivery, essentially promoting the early diagnosis of cancers, classification, precise therapy and the estimation of prognosis in the future.
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Affiliation(s)
- Shujuan Sun
- Cancer Metastasis Alert and Prevention Center, Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, National & Local Joint Biomedical Engineering Research Center on Photodynamic Technologies, State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou 305108, China.,Collaborative Innovation Center of Tumor Marker Detection Technology, Equipment and Diagnosis-Therapy Integration in Universities of Shandong, Shandong Provincial Key Laboratory of Detection Technology for Tumor Markers, College of Chemistry and Chemical Engineering, Linyi University, Linyi 276000, China
| | - Ya Yang
- Cancer Metastasis Alert and Prevention Center, Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, National & Local Joint Biomedical Engineering Research Center on Photodynamic Technologies, State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou 305108, China
| | - Huimin Niu
- Cancer Metastasis Alert and Prevention Center, Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, National & Local Joint Biomedical Engineering Research Center on Photodynamic Technologies, State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou 305108, China.,Fujian Key Laboratory of Aptamers Technology, The 900th Hospital of Joint Logistics Support Force, Fuzhou 350025, China
| | - Mengxue Luo
- Cancer Metastasis Alert and Prevention Center, Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, National & Local Joint Biomedical Engineering Research Center on Photodynamic Technologies, State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou 305108, China
| | - Zai-Sheng Wu
- Cancer Metastasis Alert and Prevention Center, Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, National & Local Joint Biomedical Engineering Research Center on Photodynamic Technologies, State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou 305108, China
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9
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Zhang J, Zhao H, Gong M, Zhang L, Yan Z, Xie K, Fei G, Zhu X, Kong M, Zhang S, Zhang L, Lei Y. Revealing the truncated conical geometry of nanochannels in anodic aluminium oxide membranes. NANOSCALE 2022; 14:5356-5368. [PMID: 35293409 DOI: 10.1039/d2nr01006b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Anodic aluminium oxide (AAO) membranes with self-ordered nanochannels have become promising candidates for applications in the aspects such as structural coloration, photonic crystals, upconversion luminescence and nanofluidic transport. Also, self-ordered AAO membranes have been extensively used for the fabrication of functional nanostructures such as nanowires, nanotubes, nanoparticles, nanorods and nanopillars. Geometries of nanochannels are crucial for the applications of AAO membranes as well as controlling growth (e.g., nucleation, direction and morphology) and in applications (e.g., optics, magnetics, thermoelectrics, biology, medicine, sensing, and energy conversion and storage) of the functional nanostructures fabricated via AAO template-based methods. However, observation of whole nanochannels with nanometer-resolution in thick AAO membranes remains a fundamental challenge, and the nanochannel geometry has not yet been sufficiently elucidated. Here, for the first time, we use depth-profiling transmission electron microscopy to reveal the truncated conical geometry of whole nanochannels of 70 μm in length. Such shape nonuniformity of the nanochannels leads to different reflectance properties of the different depths of the nanochannels along their long axis for one AAO membrane, which suggests that the nonuniformity result in some effects on applications of the nanostructures. Furthermore, we introduce a shape factor to evaluate the shape nonuniformity and demonstrate that the nonuniformity can be remarkably removed by an effective etching method based on a temperature gradient regime.
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Affiliation(s)
- Junxi Zhang
- School of Instrument Science and Opto-electronics Engineering, Anhui Key Laboratory of Advanced Functional Materials and Devices, and Anhui Province Key Laboratory of Measuring Theory and Precision Instrument, Hefei University of Technology, Hefei 230009, China.
| | - Huaping Zhao
- Institute of Physics & IMN MacroNano, Ilmenau University of Technology, Ilmenau 98693, Germany.
| | - Ming Gong
- Laboratory of Engineering and Material Science, University of Science and Technology of China, Hefei 230027, China
| | - Lide Zhang
- Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, China
| | - Zhijun Yan
- School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Kang Xie
- School of Opto-Electronic Engineering, Zaozhuang University, Zaozhuang 277160, Shandong, China
| | - Guangtao Fei
- Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, China
| | - Xiaoguang Zhu
- Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, China
| | - Mingguang Kong
- Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, China
| | - Shuyuan Zhang
- Hefei National Laboratory for Physical Sciences at Microscale, University of Science and Technology of China, Hefei 230026, China
| | - Lin Zhang
- Aston Institute of Photonic Technologies, School of Engineering & Applied Science, Aston University, Birmingham B4 7ET, UK
| | - Yong Lei
- Institute of Physics & IMN MacroNano, Ilmenau University of Technology, Ilmenau 98693, Germany.
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10
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Electrochemical microRNA detection based on catalytic deposition of G-quadruplex DNAzyme in nanochannels. J APPL ELECTROCHEM 2022. [DOI: 10.1007/s10800-022-01673-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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11
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Shi L, Wang L, Ma X, Fang X, Xiang L, Yi Y, Li J, Luo Z, Li G. Aptamer-Functionalized Nanochannels for One-Step Detection of SARS-CoV-2 in Samples from COVID-19 Patients. Anal Chem 2021; 93:16646-16654. [PMID: 34847324 DOI: 10.1021/acs.analchem.1c04156] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
With the outbreak of COVID-19, which is fast transmitting and highly contagious, the development of rapid, highly specific, and sensitive detection kits has become a research hotspot. The existing assay methods for SARS-CoV-2 are mainly based on enzymatic reactions, which require expensive reagents, hindering popular use, especially in resource-constrained areas. Herein, we propose an aptamer-based method for the assay of SARS-CoV-2 via binding of the spike protein using functionalized biomimetic nanochannels. To get the analogous effect of human ACE2, a receptor for the spike protein, the aptamer to bind to the spike S1 protein has been first screened by a SELEX technique and then immobilized on the previously prepared nanochannels. In the presence of SARS-CoV-2, the changes in steric hindrance and charge density on the surface of the nanochannels will affect the ion transport, along with a rapid electrochemical response. Our method has been successfully applied to detect the viral particles in clinical pharyngeal swab specimens in one step without sample treatment. We expect this rapid, reagent-free, and sensitive assay method to be developed as a useful tool for diagnosing COVID-19.
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Affiliation(s)
- Liu Shi
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, 210023 Nanjing, P. R. China
| | - Lin Wang
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, 210023 Nanjing, P. R. China
| | - Xuemei Ma
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, 210023 Nanjing, P. R. China
| | - Xiaona Fang
- School of Life Sciences, University of Science and Technology of China, Hefei, 230027 Anhui, P. R. China.,The Cancer Hospital of the University of Chinese Academy of Sciences, Aptamer Selection Center, Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, 310022 Zhejiang, P. R. China
| | - Liangliang Xiang
- The Second Hospital of Nanjing, Nanjing University of Chinese Medicine, 210003 Nanjing, P. R. China
| | - Yongxiang Yi
- The Second Hospital of Nanjing, Nanjing University of Chinese Medicine, 210003 Nanjing, P. R. China
| | - Jinlong Li
- The Second Hospital of Nanjing, Nanjing University of Chinese Medicine, 210003 Nanjing, P. R. China
| | - Zhaofeng Luo
- School of Life Sciences, University of Science and Technology of China, Hefei, 230027 Anhui, P. R. China.,The Cancer Hospital of the University of Chinese Academy of Sciences, Aptamer Selection Center, Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, 310022 Zhejiang, P. R. China
| | - Genxi Li
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, 210023 Nanjing, P. R. China.,Center for Molecular Recognition and Biosensing, School of Life Sciences, Shanghai University, 200444 Shanghai, P. R. China
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12
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Conceptual Progress for Explaining and Predicting Self-Organization on Anodized Aluminum Surfaces. NANOMATERIALS 2021; 11:nano11092271. [PMID: 34578587 PMCID: PMC8468298 DOI: 10.3390/nano11092271] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 08/21/2021] [Accepted: 08/27/2021] [Indexed: 12/22/2022]
Abstract
Over the past few years, researchers have made numerous breakthroughs in the field of aluminum anodizing and faced the problem of the lack of adequate theoretical models for the interpretation of some new experimental findings. For instance, spontaneously formed anodic alumina nanofibers and petal-like patterns, flower-like structures observed under AC anodizing conditions, and hierarchical pores whose diameters range from several nanometers to sub-millimeters could be explained neither by the classical field-assisted dissolution theory nor by the plastic flow model. In addition, difficulties arose in explaining the basic indicators of porous film growth, such as the nonlinear current–voltage characteristics of electrochemical cells or the evolution of hexagonal pore patterns at the early stages of anodizing experiments. Such a conceptual crisis resulted in new multidisciplinary investigations and the development of novel theoretical models, whose evolution is discussed at length in this review work. The particular focus of this paper is on the recently developed electroconvection-based theories that allowed making truly remarkable advances in understanding the porous anodic alumina formation process in the last 15 years. Some explanation of the synergy between electrode reactions and transport processes leading to self-organization is provided. Finally, future prospects for the synthesis of novel anodic architectures are discussed.
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13
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Gao P, Wang D, Che C, Ma Q, Wu X, Chen Y, Xu H, Li X, Lin Y, Ding D, Lou X, Xia F. Regional and functional division of functional elements of solid-state nanochannels for enhanced sensitivity and specificity of biosensing in complex matrices. Nat Protoc 2021; 16:4201-4226. [PMID: 34321637 DOI: 10.1038/s41596-021-00574-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Accepted: 05/13/2021] [Indexed: 11/09/2022]
Abstract
Solid-state nanochannels (SSNs) provide a promising approach for biosensing due to the confinement of molecules inside, their great mechanical strength and diversified surface chemical properties; however, until now, their sensitivity and specificity have not satisfied the practical requirements of sensing applications, especially in complex matrices, i.e., media of diverse constitutions. Here, we report a protocol to achieve explicit regional and functional division of functional elements at the outer surface (FEOS) and inner wall (FEIW) of SSNs, which offers a nanochannel-based sensing platform with enhanced specificity and sensitivity. The protocol starts with the fabrication and characterization of the distribution of FEOS and FEIW. Then, the evaluation of the contributions of FEOS and FEIW to ionic gating is described; the FEIW mainly regulate ionic gating, and the FEOS can produce a synergistic effect. Finally, hydrophobic or highly charged FEOS are applied to ward off interference molecules, non-target molecules that may affect the ionic signal of nanochannels, which decreases false signals and helps to achieve the highly specific ionic output in complex matrices. Compared with other methods currently available, this method will contribute to the fundamental understanding of substance transport in SSNs and provide high specificity and sensitivity in SSN-based analyses. The procedure takes 3-6 d to complete.
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Affiliation(s)
- Pengcheng Gao
- State Key Laboratory of Biogeology and Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences (CUG), Wuhan, P. R. China
| | - Dagui Wang
- State Key Laboratory of Biogeology and Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences (CUG), Wuhan, P. R. China
| | - Cheng Che
- State Key Laboratory of Biogeology and Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences (CUG), Wuhan, P. R. China
| | - Qun Ma
- State Key Laboratory of Biogeology and Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences (CUG), Wuhan, P. R. China
| | - Xiaoqing Wu
- State Key Laboratory of Biogeology and Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences (CUG), Wuhan, P. R. China
| | - Yajie Chen
- State Key Laboratory of Biogeology and Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences (CUG), Wuhan, P. R. China
| | - Hongquan Xu
- State Key Laboratory of Biogeology and Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences (CUG), Wuhan, P. R. China
| | - Xinchun Li
- Pharmaceutical Analysis Division, School of Pharmacy, Guangxi Medical University, Nanning, P. R. China
| | - Yu Lin
- State Key Laboratory of Biogeology and Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences (CUG), Wuhan, P. R. China
| | - Defang Ding
- State Key Laboratory of Biogeology and Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences (CUG), Wuhan, P. R. China
| | - Xiaoding Lou
- State Key Laboratory of Biogeology and Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences (CUG), Wuhan, P. R. China
| | - Fan Xia
- State Key Laboratory of Biogeology and Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences (CUG), Wuhan, P. R. China.
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An all-in-one telomerase assay based on CRISPR-Cas12a trans-cleavage while telomere synthesis. Anal Chim Acta 2021; 1159:338404. [PMID: 33867038 DOI: 10.1016/j.aca.2021.338404] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 01/25/2021] [Accepted: 02/28/2021] [Indexed: 12/26/2022]
Abstract
As one of the crucial factors associated with human life span and cancer progression, telomerase is regarded as an emerging biomarker for cancer diagnosis. Therefore, a facile, rapid and sensitive approach for telomerase activity detection with point-of-care (POC) diagnosis potential is in great demands. Herein, an all-in-one telomerase activity detection assay was established based on the telomere synthesis activated CRISPR-Cas12a system. A telomerase extension reaction generated telomere repeats sequences (TTAGGG)n, which was recognized by a customized CRISPR-guided RNA (crRNA) simultaneously, and finally activated a typical trans-cleavage based CRISPR-Cas12a detection assay. With the inherent sensitivity of CRISPR-Cas12a, this approach achieved a great linear regression ranging from 100 to 2000 HeLa cells and a limitation of detection down to 26 HeLa cells. Moreover, by using the proposed method, telomerase can be detected in one pot under isothermal condition (37 °C) by a simple and fast workflow (one step within 1 h). Due to its excellent performance, this all-in-one method shows great potential in POC detection of the telomerase activity.
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15
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Pan M, Cai J, Li S, Xu L, Ma W, Xu C, Kuang H. Aptamer-Gated Ion Channel for Ultrasensitive Mucin 1 Detection. Anal Chem 2021; 93:4825-4831. [PMID: 33688720 DOI: 10.1021/acs.analchem.0c04137] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Detection of cancer markers is important for early diagnosis and timely treatment of cancer. In this study, we fabricated a tailorable gold nanofilm-anodized aluminum oxide (Au-AAO) ion channel through nanoparticle self-assembly and proposed a highly sensitive and selective Mucin 1 (MUC1) detection method. By engineering the optimal layers of the Au-AAO ion channel and encoding the aptamer between the interlayers, a highly controllable ion rectification phenomenon was observed. From this, the relationship between the rectification ratio (RR) and the concentration of MUC1 was established and the highly sensitive detection of MUC1 is achieved. We found that the aptamer-modified Au-AAO ion channel has a good linear range within the MUC1 concentration of 1-104 fg mL-1 and the limit of detection (LOD) was as low as 0.0364 fg mL-1 (0.0025 aM). Thus, this research opens a new horizon for fabricating multi-functional ion channels as well as developing ultrasensitive detection technologies.
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Affiliation(s)
- Mengying Pan
- International Joint Research Laboratory for Biointerface and Biodetection, State Key Lab of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, P. R. China
| | - Jiarong Cai
- International Joint Research Laboratory for Biointerface and Biodetection, State Key Lab of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, P. R. China
| | - Si Li
- International Joint Research Laboratory for Biointerface and Biodetection, State Key Lab of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, P. R. China
| | - Liguang Xu
- International Joint Research Laboratory for Biointerface and Biodetection, State Key Lab of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, P. R. China
| | - Wei Ma
- International Joint Research Laboratory for Biointerface and Biodetection, State Key Lab of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, P. R. China
| | - Chuanlai Xu
- International Joint Research Laboratory for Biointerface and Biodetection, State Key Lab of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, P. R. China
| | - Hua Kuang
- International Joint Research Laboratory for Biointerface and Biodetection, State Key Lab of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, P. R. China
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16
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Wang D, Xue W, Ren X, Xu Z. A review on sensing mechanisms and strategies for telomerase activity detection. Trends Analyt Chem 2021. [DOI: 10.1016/j.trac.2020.116115] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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17
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Zou L, Li X, Zhang J, Ling L. A Highly Sensitive Catalytic Hairpin Assembly-Based Dynamic Light-Scattering Biosensors for Telomerase Detection in Bladder Cancer Diagnosis. Anal Chem 2020; 92:12656-12662. [DOI: 10.1021/acs.analchem.0c02858] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Li Zou
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, P. R. China
| | - Xinghui Li
- Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou 510080, P. R. China
| | - Ji Zhang
- Department of Neurosurgery, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou 510060, P. R. China
| | - Liansheng Ling
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, P. R. China
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18
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Xia X, Li H, Zhou G, Ge L, Li F. In situ growth of nano-gold on anodized aluminum oxide with tandem nanozyme activities towards sensitive electrochemical nanochannel sensing. Analyst 2020; 145:6617-6624. [DOI: 10.1039/d0an01271h] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The growth of nano-gold tandem nanozymes on anodized aluminum oxide is successfully developed using poly-dopamine as an in situ reducing layer for electrochemical nanochannel sensing.
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Affiliation(s)
- Xin Xia
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao
- People's Republic of China
| | - Hui Li
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao
- People's Republic of China
| | - Guoxing Zhou
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao
- People's Republic of China
| | - Lei Ge
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao
- People's Republic of China
| | - Feng Li
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao
- People's Republic of China
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19
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Zhu L, Miao M, Shao X, Du Z, Huang K, Luo Y, Xu W. A Universal Electrochemical Biosensor Using Nick-HCR Nanostructure as Molecular Gate of Nanochannel for Detecting Chromium(III) Ions and MicroRNA. Anal Chem 2019; 91:14992-14999. [DOI: 10.1021/acs.analchem.9b03489] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Longjiao Zhu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, P. R. China
- Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety), Ministry of Agriculture, Beijing 100083, P.R. China
| | - Miao Miao
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, P. R. China
- Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety), Ministry of Agriculture, Beijing 100083, P.R. China
| | - Xiangli Shao
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, P. R. China
- Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety), Ministry of Agriculture, Beijing 100083, P.R. China
| | - Zaihui Du
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, P. R. China
- Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety), Ministry of Agriculture, Beijing 100083, P.R. China
| | - Kunlun Huang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, P. R. China
- Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety), Ministry of Agriculture, Beijing 100083, P.R. China
- Beijing Laboratory for Food Quality and Safety, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, P. R. China
| | - Yunbo Luo
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, P. R. China
- Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety), Ministry of Agriculture, Beijing 100083, P.R. China
| | - Wentao Xu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, P. R. China
- Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety), Ministry of Agriculture, Beijing 100083, P.R. China
- Beijing Laboratory for Food Quality and Safety, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, P. R. China
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20
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Fan GC, Lu Y, Ma L, Song ZL, Luo X, Zhao WW. Target-induced formation of multiple DNAzymes in solid-state nanochannels: Toward innovative photoelectrochemical probing of telomerase activity. Biosens Bioelectron 2019; 142:111564. [PMID: 31404880 DOI: 10.1016/j.bios.2019.111564] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Revised: 07/31/2019] [Accepted: 08/01/2019] [Indexed: 11/25/2022]
Abstract
Solid-state nanochannels have great potentials in the vibrant field of photoelectrochemical (PEC) bioanalysis. This work herein demonstrates the innovative use of DNA-decorated nanoporous anodic alumina (NAA) nanochannels for sensitive PEC bioanalysis of telomerase (TE) activity. Specifically, telomerase primer sequences (TS) were initially immobilized within the NAA nanochannels and then extended by TE in the presence of deoxyribonucleoside triphosphates (dNTPs). The as formed single-strand DNA was then directed to hybrid with many partially matched single-strand assisting DNA (aDNA), leading to the formation of multiple DNAzymes by the unmatched parts and the subsequent DNAzyme-stimulated biocatalytic precipitation (BCP) within the nanochannels. Because the inhibited signals of the photoelectrode could be correlated with TE-enabled TS extension, an innovative nanochannels PEC bioanalysis could be realized for probing TE activity. This work features the ingenious use of DNA-associated nanochannels for PEC bioanalysis of TE activity. Given the versatile functions of DNA molecules, the extension of this strategy easily allows for addressing numerous other targets of interest. Also, we envision this work could inspire more interest for the further development of nanochannels PEC bioanalysis.
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Affiliation(s)
- Gao-Chao Fan
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China; State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Yanwei Lu
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
| | - Linzheng Ma
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China; College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao, 266590, China
| | - Zhi-Ling Song
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
| | - Xiliang Luo
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China.
| | - Wei-Wei Zhao
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China.
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21
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Dong P, Zhu L, Huang J, Ren J, Lei J. Electrocatalysis of cerium metal-organic frameworks for ratiometric electrochemical detection of telomerase activity. Biosens Bioelectron 2019; 138:111313. [PMID: 31108380 DOI: 10.1016/j.bios.2019.05.018] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 04/30/2019] [Accepted: 05/08/2019] [Indexed: 01/13/2023]
Abstract
A ratiometric electrochemical biosensor was constructed to detect telomerase activity based on electrocatalysis of cerium-based metal-organic frameworks (CeMOFs) and conformation switch of hairpin DNA. First, the CeMOFs were synthesized using Ce as nodes and 1,3,5-benzenetricarboxylic acid as linker in a green method, and then functionalized with gold nanoparticles. The resulted Au@CeMOF tags demonstrated an excellent electrocatalysis toward hydroquinone oxidation. Meanwhile, a methylene blue (MB) modified hairpin probe was designed with telomerase primer (TP) hybridized "stem" and immobilized on the electrode surface via Au-S chemistry. In the presence of the dNTPs and telomerase, the extended TP can open the hairpin DNA and keep the MB away from the electrode surface, resulting in a decrease of electrochemical signal. In the meantime, the TP-extended part could capture the Au@CeMOF-cDNA tags on the electrode surface via hybridization, leading to the increase electrochemical signal of hydroquinone oxidation catalyzed by Au@CeMOF-cDNA tags. Thus, a ratiometric signal output mode was developed for the electrochemical detection of telomerase activity. This biosensor showed wide dynamic correlation of telomerase activity from 2 × 102 to 2 × 106 cells mL-1 with the limit of detection of 27 cells mL-1, and was applied to evaluate telomerase activity in single cell. The ratiometric electrochemical strategy based on the catalysis of MOFs provides a new avenue on signal transduction in telomerase detection.
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Affiliation(s)
- Pengfei Dong
- School of Science, Hebei University of Science and Technology, Shijiazhuang, Hebei, 050018, China; State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Longyi Zhu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Jing Huang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Jujie Ren
- School of Science, Hebei University of Science and Technology, Shijiazhuang, Hebei, 050018, China.
| | - Jianping Lei
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China.
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22
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Qiao Z, Zhang H, Zhou Y, Zheng J. C 60 Mediated Ion Pair Interaction for Label-Free Electrochemical Immunosensing with Nanoporous Anodic Alumina Nanochannels. Anal Chem 2019; 91:5125-5132. [PMID: 30908018 DOI: 10.1021/acs.analchem.8b05673] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Label-free biosensing based on the nanoporous anodic alumina (NAA) membrane emerged as a versatile biosensing platform in the recent decade. In the present work, we developed a new immunosensing strategy based on the nanochannels of NAA and the ion pair interaction mediated by electrochemistry of C60. The NAA served as the matrix for the immobilization of the capture antibodies. The incubation of target antigens resulted in the formation of the immunocomplexes and thus an increase of the steric hindrance of the nanochannels. Therefore, the concentration of the redox probe transported through the nanochannels decreases, which can be detected at the working electrode modified with C60. Herein, we initially found that the cathodic peak ascribed to the reduction of C60 to C60- was obviously enhanced by the presence of the redox probe K3[Fe(CN)6] and which was contributed to the formation of a ternary ion association complex among C60, tetraoctylammonium bromide, and K3[Fe(CN)6]. Therefore, the transportation of K3[Fe(CN)6] though the NAA-based bionanochannels can be detected by a C60 modified electrode with an amplified signal. Choosing human epididymis protein 4 (HE4) as the model target, a linear range of 1.0 ng mL-1 to 100 ng mL-1 can be established between the peak current obtained from the differential pulse voltammetric response of the platform and the concentration of HE4. The detection limit was 0.2 ng mL-1. This study not only provides a new avenue to develop the other nanochannel-based biosensing platform for a variety of other disease biomarkers but also contributes to the electrochemistry of fullerene.
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Affiliation(s)
- Zhe Qiao
- Ministry of Education Key Laboratory of Synthetic and Natural Functional Molecular Chemistry, College of Chemistry & Materials Science, Shaanxi Provincial Key Laboratory of Electroanalytical Chemistry , Northwest University , Xi'an 710127 , China
| | - Hongfang Zhang
- Ministry of Education Key Laboratory of Synthetic and Natural Functional Molecular Chemistry, College of Chemistry & Materials Science, Shaanxi Provincial Key Laboratory of Electroanalytical Chemistry , Northwest University , Xi'an 710127 , China
| | - Yuanzhen Zhou
- School of Chemistry and Chemical Engineering , Xi'an University of Architecture and Technology , Xi'an 710055 , China
| | - Jianbin Zheng
- Ministry of Education Key Laboratory of Synthetic and Natural Functional Molecular Chemistry, College of Chemistry & Materials Science, Shaanxi Provincial Key Laboratory of Electroanalytical Chemistry , Northwest University , Xi'an 710127 , China
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23
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Yang H, Fu F, Li W, Wei W, Zhang Y, Liu S. Telomerase and poly(ADP-ribose) polymerase-1 activity sensing based on the high fluorescence selectivity and sensitivity of TOTO-1 towards G bases in single-stranded DNA and poly(ADP-ribose). Chem Sci 2019; 10:3706-3714. [PMID: 31015914 PMCID: PMC6461019 DOI: 10.1039/c8sc05770b] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2018] [Accepted: 02/18/2019] [Indexed: 01/12/2023] Open
Abstract
Telomerase and poly(ADP-ribose) polymerase-1 (PARP-1) are two potential cancer biomarkers and are closely related to tumor initiation and malignant progression. TOTO-1 is well-known for differentiating ss-DNA from ds-DNA because it is virtually non-fluorescent without DNA and exhibits very low fluorescence with ss-DNA, while it emits strong fluorescence with ds-DNA. In this paper, for the first time, it was found that TOTO-1 has high fluorescence selectivity and sensitivity towards the G bases in single-stranded DNA and poly(ADP-ribose) (PAR). Poly(dG) was used as the model target to explore its possible mechanism. Molecular dynamics (MD) simulation proved that intramolecular π-π stacking existed in TOTO-1 (in an aqueous solution), while intermolecular π-π stacking formed between TOTO-1 and poly(dG) in a similar way as that observed for dsDNA. Interestingly, telomerase and PARP-1 catalyzed the formation of G-rich DNA and PAR in vivo, respectively. Therefore, TOTO-1 was explored in detecting both of them, obtaining satisfactory results. To the best of our knowledge, no probe has been reported to recognize PAR. It is also the first time where telomerase is detected based on the specific recognition of G bases. Importantly, integrating multiple functions into one probe that can detect not only telomerase but also PARP-1 will significantly raise the specificity of screening cancer and decrease false positive proportion, which make TOTO-1 a promising candidate probe for clinical diagnosis and pharmaceutical screening.
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Affiliation(s)
- Haitang Yang
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device , Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research , School of Chemistry and Chemical Engineering , Southeast University , Nanjing, 211189 , China . ; ; ; Tel: +86-25-52090613
| | - Fangjia Fu
- Institution of Theoretical and Computational Chemistry , School of Chemistry and Chemical Engineering , Nanjing University , Nanjing 210023 , People's Republic of China
| | - Wei Li
- Institution of Theoretical and Computational Chemistry , School of Chemistry and Chemical Engineering , Nanjing University , Nanjing 210023 , People's Republic of China
| | - Wei Wei
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device , Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research , School of Chemistry and Chemical Engineering , Southeast University , Nanjing, 211189 , China . ; ; ; Tel: +86-25-52090613
| | - Yuanjian Zhang
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device , Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research , School of Chemistry and Chemical Engineering , Southeast University , Nanjing, 211189 , China . ; ; ; Tel: +86-25-52090613
| | - Songqin Liu
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device , Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research , School of Chemistry and Chemical Engineering , Southeast University , Nanjing, 211189 , China . ; ; ; Tel: +86-25-52090613
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24
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Ma F, Wang TT, Jiang L, Zhang CY. Ultrasensitive detection of telomerase activity in lung cancer cells with quencher-free molecular beacon-assisted quadratic signal amplification. Anal Chim Acta 2019; 1053:122-130. [DOI: 10.1016/j.aca.2018.11.058] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2018] [Revised: 11/27/2018] [Accepted: 11/30/2018] [Indexed: 10/27/2022]
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25
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Zhao XP, Liu FF, Hu WC, Younis MR, Wang C, Xia XH. Biomimetic Nanochannel-Ionchannel Hybrid for Ultrasensitive and Label-Free Detection of MicroRNA in Cells. Anal Chem 2019; 91:3582-3589. [PMID: 30758184 DOI: 10.1021/acs.analchem.8b05536] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A biomimetic nanochannel-ionchannel hybrid coupled with electrochemical detector was developed for label-free and ultrasensitive detection of microRNA (miRNA) in cells. Probe single stranded DNA (ssDNA) was first immobilized on the outer surface of the nanochannel-ionchannel hybrid membrane, which can hybridize with the target miRNA in cells. Due to the unique mass transfer property of the hybrid, the DNA-miRNA hybridization kinetics can be sensitively monitored in real-time using the electrochemical technique. More importantly, due to the super small size of the ionchannels, the DNA probe immobilization and hybridization process can be carried out on the outer surface of the ionchannel side, which can effectively avoid the blockage and damage of channels and thus considerably enhance the reproducibility and accuracy of the method. Using this strategy, the miRNA ranging from 0.1 fM to 0.1 μM can be facilely detected with a low detection limit of 15.4 aM, which is much lower than most reported work. The present strategy provides a sensitive and label-free miRNA detection platform, which will be of great significance in biomedical research and clinical diagnosis.
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Affiliation(s)
- Xiao-Ping Zhao
- Key Laboratory of Drug Quality Control and Pharmacovigilance (China Pharmaceutical University), Ministry of Education, Key Laboratory of Biomedical Functional Materials, School of Science , China Pharmaceutical University , Nanjing , 211198 , China
| | - Fei-Fei Liu
- Key Laboratory of Drug Quality Control and Pharmacovigilance (China Pharmaceutical University), Ministry of Education, Key Laboratory of Biomedical Functional Materials, School of Science , China Pharmaceutical University , Nanjing , 211198 , China
| | - Wen-Chao Hu
- Key Laboratory of Drug Quality Control and Pharmacovigilance (China Pharmaceutical University), Ministry of Education, Key Laboratory of Biomedical Functional Materials, School of Science , China Pharmaceutical University , Nanjing , 211198 , China
| | - Muhammad Rizwan Younis
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering , Nanjing University , Nanjing 210093 , China
| | - Chen Wang
- Key Laboratory of Drug Quality Control and Pharmacovigilance (China Pharmaceutical University), Ministry of Education, Key Laboratory of Biomedical Functional Materials, School of Science , China Pharmaceutical University , Nanjing , 211198 , China
| | - Xing-Hua Xia
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering , Nanjing University , Nanjing 210093 , China
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26
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Wang J, Zhang J, Li T, Shen R, Li G, Ling L. Strand displacement amplification-coupled dynamic light scattering method to detect urinary telomerase for non-invasive detection of bladder cancer. Biosens Bioelectron 2019; 131:143-148. [PMID: 30826649 DOI: 10.1016/j.bios.2019.02.014] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2018] [Revised: 01/29/2019] [Accepted: 02/01/2019] [Indexed: 11/28/2022]
Abstract
Despite huge successes achieved by strand displacement amplification (SDA) and gold nanoparticles (AuNPs) in biomolecules sensing, the strategy of combination of SDA and AuNPs-based dynamic light scattering (DLS) for a biomolecule sensing is unexplored. Here we developed a non-invasive, SDA-based DLS method for the diagnosis of bladder cancer by detecting telomerase activity in human urine. In the presence of telomerase, the telomerase substrate (TS) primer was elongated with repeating sequences of (TTAGGG)n, and the resulting product triggers SDA between the hairpin deoxyribonucleic acid (DNA) and the Primer. The SDA product can be recognized by the oligonucleotide-modified AuNPs probes, resulting in DLS measurable AuNPs aggregation. The assay displayed a detection limit of 3 MCF-7 cells with a signal-to-noise ratio of 3 in a dynamic range of 5-1000 cells. The method was simple, reliable and has been successfully applied in the detection of telomerase in urine with good accuracy, selectivity and reproducibility. Moreover, only urine samples from bladder cancer patients induced a significant change in the average hydrodynamic diameter, indicating practical applicability of the method for the non-invasive diagnosis of bladder cancer.
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Affiliation(s)
- Jing Wang
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, PR China
| | - Ji Zhang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou 510060, PR China
| | - Tingting Li
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, PR China
| | - Ruidi Shen
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, PR China
| | - Gongke Li
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, PR China
| | - Liansheng Ling
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, PR China.
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27
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Electrochemical determination of the activity and inhibition of telomerase based on the interaction of DNA with molybdate. Mikrochim Acta 2019; 186:96. [PMID: 30631950 DOI: 10.1007/s00604-018-3223-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2018] [Accepted: 12/29/2018] [Indexed: 01/19/2023]
Abstract
An ultrasensitive electrochemical sensor is described for the determination of the activity of telomerase. It is based on a DNA-generated current that is due to the reaction of the phosphate groups on DNA with molybdate to form a redox-active molybdophosphate. A telomerase substrate primer was first immobilized on a gold electrode. In the presence of telomerase and deoxyribonucleoside triphosphates (dNTPs), the primer can be extended with repetitive nucleotide sequences (TTAGGG). The subsequent reaction of the sensor with molybdate results in the enhancement of electrochemical current intensity due to an increased amount of nucleotides on the electrode. Sensitivity can be further improved by introducing a hairpin probe that partially hybridizes with the repetitive TTAGGG sequence and further enhances the amount of DNA on the electrode. The biosensor, best operated at 0.2 V (vs. Ag/AgCl) shows a linear response to telomerase activity from 1×102 to 107 Hela cells mL-1. The assay was applied to the detection of telomerase activity in HeLa cancer cells treated with the anticancer drug epigallocatechin gallate, and the results indicate that it holds great potential in anticancer drug screening. Graphical abstract Schematic presentation of an ultrasensitive electrochemical sensor for the determination of telomerase activity based on DNA generated electrochemical current. dNTPs in the scheme represents deoxyribonucleoside triphosphates.
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28
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Yang H, Li Y, Wang D, Liu Y, Wei W, Zhang Y, Liu S, Li P. Quartz crystal microbalance for telomerase sensing based on gold nanoparticle induced signal amplification. Chem Commun (Camb) 2019; 55:5994-5997. [DOI: 10.1039/c9cc02610j] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A mass-sensitive quartz crystal microbalance biosensor was constructed for telomerase sensing based on gold nanoparticle induced signal amplification.
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Affiliation(s)
- Haitang Yang
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device
- Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research
- School of Chemistry and Chemical Engineering
- Southeast University
- Nanjing
| | - Ying Li
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device
- Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research
- School of Chemistry and Chemical Engineering
- Southeast University
- Nanjing
| | - Dingzhong Wang
- Zhengzhou Tobacco Research Institute of CNTC
- Zhengzhou 450001
- China
| | - Yong Liu
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng
- P. R. China
| | - Wei Wei
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device
- Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research
- School of Chemistry and Chemical Engineering
- Southeast University
- Nanjing
| | - Yuanjian Zhang
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device
- Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research
- School of Chemistry and Chemical Engineering
- Southeast University
- Nanjing
| | - Songqin Liu
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device
- Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research
- School of Chemistry and Chemical Engineering
- Southeast University
- Nanjing
| | - Peng Li
- Zhengzhou Tobacco Research Institute of CNTC
- Zhengzhou 450001
- China
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29
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Lu M. Bioresponsive-controlled release of methylene blue from magnetic mesoporous silica from the electrochemical detection of telomerase activity. Analyst 2018; 142:3477-3483. [PMID: 28829452 DOI: 10.1039/c7an01127j] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
An electrochemical sensing platform was designed to monitor telomerase activity in HeLa cells, using bioresponsively controlled cargo release from magnetic mesoporous silica nanocontainers (MMSNs). The aminated MMSNs were first synthesized by a wet-chemistry method, then methylene blue (indicator) molecules were loaded into the pores with the aid of specifically designed wrapping DNA strands, and then the wrapping DNA-gated MMSNs were immobilized on a magnetic removable screen-printing carbon electrode. Upon target telomerase and dNTP introduction into the detection cell, the wrapping DNA strands on the MMSNs were prolonged to form rigid hairpin-like DNA structures, thus resulting in the dissociation of wrapping DNA strands from the MMSNs. Thereafter, the loaded methylene blue with redox activity was released out from the pores, thereby causing the increase in the electrochemical signal relative to the background signal. Under optimal conditions, an MMSN-based sensing system exhibited good voltammetric responses toward target telomerase activity within the dynamic linear range of 50-5000 cells per mL at a detection limit of 12 cells per mL in the HeLa extract. The reproducibility and generality of our strategy were acceptable by using somatic tumor cell lines. In addition, the inhibition effect of this system was also evaluated by using 3'-azido-3'-deoxythymidine as a telomerase inhibitor, receiving good results in this screening research.
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Affiliation(s)
- Minghua Lu
- Institute of Environmental and Analytical Science, School of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, Henan, P.R. China.
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30
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Wang C, Yang H, Wu S, Liu Y, Wei W, Zhang Y, Wei M, Liu S. Manifold methods for telomerase activity detection based on various unique probes. Trends Analyt Chem 2018. [DOI: 10.1016/j.trac.2018.06.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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31
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Liu Y, Fan J, Yang H, Xu E, Wei W, Zhang Y, Liu S. Detection of PARP-1 activity based on hyperbranched-poly (ADP-ribose) polymers responsive current in artificial nanochannels. Biosens Bioelectron 2018; 113:136-141. [PMID: 29754052 DOI: 10.1016/j.bios.2018.05.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Revised: 04/30/2018] [Accepted: 05/03/2018] [Indexed: 11/16/2022]
Abstract
The cellular enzyme poly ADP (ADP: adenosine diphosphate)-ribose polymerase-1 (PARP-1) plays key roles in DNA repair. Its activity is closely related to various cancer developments. Detection of PARP-1 activity is significant, however, it is relatively difficult since it lacks superiority property that can be used to detect conveniently. PARP-1 lead to the synthesis of hyperbranched poly (ADP-ribose) polymers (PAR) using nicotinamide adenine dinucleotide (NAD+) as substrate during DNA damage repairing. In this paper, we found that hyper-branched PAR increased the steric hindrance and reduced the flux of probe ions effectively in anodic aluminum oxide (AAO) nanochannels. To the best of our knowledge, few papers have been reported that hyper-branched polymer has the similar effects in nanochannels as G-quadruplex DNA. Thus, a novel and simple strategy for PARP-1 detection has been proposed due to its great impacts on the diffusion flux of ferricyanide in AAO. It is also proved that electrostatic repulsion is another important factor to influence the current. The method is label-free, simple and sensitive. Quantitative detection of PARP-1 activity was achieved with the detection limit of 0.006 U, which is lower or comparable to the most reported methods. The method has good accuracy and reproducibility. The strategy has been used to detect PARP-1 activity in real breast cancer cells and to evaluate PARP-1 inhibitors with satisfactory results, indicating that it is a potential powerful tool for clinical diagnosis and drug development in the future.
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Affiliation(s)
- Yong Liu
- College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China
| | - Jiahui Fan
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
| | - Haitang Yang
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
| | - Ensheng Xu
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
| | - Wei Wei
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China.
| | - Yuanjian Zhang
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
| | - Songqin Liu
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
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32
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Li D, Qiao Z, Yu Y, Tang J, He X, Shi H, Ye X, Lei Y, Wang K. In situ fluorescence activation of DNA-silver nanoclusters as a label-free and general strategy for cell nucleus imaging. Chem Commun (Camb) 2018; 54:1089-1092. [PMID: 29328343 DOI: 10.1039/c7cc08228b] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A facile, general and turn-on nucleus imaging strategy was first developed based on in situ fluorescence activation of C-rich dark silver nanoclusters by G-rich telomeres. After a simple incubation without washing, nanoclusters could selectively stain the nucleus with intense red luminescence, which was confirmed using fixed/living cells and several cell lines.
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Affiliation(s)
- Duo Li
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Hunan University, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Changsha, Hunan 410082, China.
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33
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Xu X, Wang L, Li K, Huang Q, Jiang W. A Smart DNA Tweezer for Detection of Human Telomerase Activity. Anal Chem 2018; 90:3521-3530. [PMID: 29446916 DOI: 10.1021/acs.analchem.7b05373] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Reliable and accurate detection of telomerase activity is crucial to better understand its role in cancer cells and to further explore its function in cancer diagnosis and treatment. Here, we construct a smart DNA tweezer (DT) for detection of telomerase activity. The DT is assembled by three specially designed single-stranded oligonucleotides: a central strand dually labeled with donor/acceptor fluorophores and two arm strands containing overhangs complementary to telomerase reaction products (TRPs). It can get closed through hybridization with TRPs and get reopen through strand displacement reaction by TRPs' complementary sequences. First, under the action of telomerase, telomerase binding substrates (TS) are elongated to generate TRPs ended with telomeric repeats (TTAGGG) n. TRPs hybridize with the two arm overhangs cooperatively and strain DT to closed state, inducing an increased fluorescence resonance energy transfer (FRET) efficiency, which is utilized for telomerase activity detection. Second, upon introduction of a removal strand (RS) complementary to TRPs, the closed DT is relaxed to open state via the toehold-mediated strand displacement, inducing a decreased FRET efficiency, which is utilized for determination of TRP length distribution. The detection limit of telomerase activity is equivalent to 141 cells/μL for HeLa cells, and telomerase-active cellular extracts can be differentiated from telomerase-inactive cellular extracts. Furthermore, TRPs owning 1, 2, 3, 4, and ≥5 telomeric repeats are identified to account for 25.6%, 20.5%, 15.7%, 12.5%, and 25.7%, respectively. The proposed strategy will offer a new approach for reliable, accurate detection of telomerase activity and product length distribution for deeper studying its role and function in cancer.
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34
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Convertible DNA ends-based silver nanoprobes for colorimetric detection human telomerase activity. Talanta 2018; 178:458-463. [DOI: 10.1016/j.talanta.2017.09.057] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Revised: 09/15/2017] [Accepted: 09/17/2017] [Indexed: 11/19/2022]
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35
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Gao F, Yao Y, Wu J, Cui L, Zhang Y, Geng D, Tang D, Yu Y. A robust fluorescent probe for detection of telomerase activityin vitroand imaging in living cellsviatelomerase-triggering primer extension to desorb DNA from graphene oxide. Analyst 2018; 143:3651-3660. [DOI: 10.1039/c8an00815a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A novel strategy for telomerase imaging was developed based on telomerase-triggering primer extension to desorb fluorophore labeled DNA from graphene oxide.
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Affiliation(s)
- Fenglei Gao
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy
- School of Pharmacy
- Xuzhou Medical University
- Xuzhou
- China
| | - Yao Yao
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy
- School of Pharmacy
- Xuzhou Medical University
- Xuzhou
- China
| | - Jing Wu
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy
- School of Pharmacy
- Xuzhou Medical University
- Xuzhou
- China
| | - Lin Cui
- Chemical Engineering and Materials Science
- Shandong Normal University
- Jinan 250014
- China
| | - Yu Zhang
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy
- School of Pharmacy
- Xuzhou Medical University
- Xuzhou
- China
| | - Deqin Geng
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy
- School of Pharmacy
- Xuzhou Medical University
- Xuzhou
- China
| | - Daoquan Tang
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy
- School of Pharmacy
- Xuzhou Medical University
- Xuzhou
- China
| | - Yanyan Yu
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy
- School of Pharmacy
- Xuzhou Medical University
- Xuzhou
- China
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36
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Shi L, Mu C, Gao T, Chen T, Hei S, Yang J, Li G. DNA nanoflower blooms in nanochannels: a new strategy for miRNA detection. Chem Commun (Camb) 2018; 54:11391-11394. [DOI: 10.1039/c8cc05690k] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
DNA nanoflower blooming was employed in the nanochannels of porous anodic alumina to build a nanochannel platform for miRNA detection with excellent sensitivity, selectivity and reproducibility.
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Affiliation(s)
- Liu Shi
- State Key Laboratory of Pharmaceutical Biotechnology and Collaborative Innovation Center of Chemistry for Life Sciences
- Department of Biochemistry
- Nanjing University
- Nanjing 210093
- P. R. China
| | - Chaoli Mu
- State Key Laboratory of Pharmaceutical Biotechnology and Collaborative Innovation Center of Chemistry for Life Sciences
- Department of Biochemistry
- Nanjing University
- Nanjing 210093
- P. R. China
| | - Tao Gao
- State Key Laboratory of Pharmaceutical Biotechnology and Collaborative Innovation Center of Chemistry for Life Sciences
- Department of Biochemistry
- Nanjing University
- Nanjing 210093
- P. R. China
| | - Tianshu Chen
- Center for Molecular Recognition and Biosensing
- School of Life Sciences
- Shanghai University
- Shanghai 200444
- P. R. China
| | - Shuang Hei
- State Key Laboratory of Pharmaceutical Biotechnology and Collaborative Innovation Center of Chemistry for Life Sciences
- Department of Biochemistry
- Nanjing University
- Nanjing 210093
- P. R. China
| | - Jie Yang
- State Key Laboratory of Pharmaceutical Biotechnology and Collaborative Innovation Center of Chemistry for Life Sciences
- Department of Biochemistry
- Nanjing University
- Nanjing 210093
- P. R. China
| | - Genxi Li
- State Key Laboratory of Pharmaceutical Biotechnology and Collaborative Innovation Center of Chemistry for Life Sciences
- Department of Biochemistry
- Nanjing University
- Nanjing 210093
- P. R. China
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37
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Yang H, Liu A, Wei M, Liu Y, Lv B, Wei W, Zhang Y, Liu S. Visual, Label-Free Telomerase Activity Monitor via Enzymatic Etching of Gold Nanorods. Anal Chem 2017; 89:12094-12100. [DOI: 10.1021/acs.analchem.7b02608] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Haitang Yang
- Jiangsu
Engineering Laboratory of Smart Carbon-Rich Materials and Device,
Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research,
School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China
| | - Anran Liu
- Jiangsu
Engineering Laboratory of Smart Carbon-Rich Materials and Device,
Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research,
School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China
| | - Min Wei
- College
of Food Science and Technology, Henan University of Technology, Zhengzhou, 450001, China
| | - Yuanjian Liu
- Jiangsu
Engineering Laboratory of Smart Carbon-Rich Materials and Device,
Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research,
School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China
| | - Bingjing Lv
- Jiangsu
Engineering Laboratory of Smart Carbon-Rich Materials and Device,
Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research,
School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China
| | - Wei Wei
- Jiangsu
Engineering Laboratory of Smart Carbon-Rich Materials and Device,
Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research,
School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China
| | - Yuanjian Zhang
- Jiangsu
Engineering Laboratory of Smart Carbon-Rich Materials and Device,
Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research,
School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China
| | - Songqin Liu
- Jiangsu
Engineering Laboratory of Smart Carbon-Rich Materials and Device,
Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research,
School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China
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38
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Zhang H, Lei Z, Tian R, Wang Z. Polyamidoamine starburst dendrimer-activated chromatography paper-based assay for sensitive detection of telomerase activity. Talanta 2017; 178:116-121. [PMID: 29136800 DOI: 10.1016/j.talanta.2017.09.034] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Revised: 09/04/2017] [Accepted: 09/12/2017] [Indexed: 02/05/2023]
Abstract
Telomerase is extensively expressed in various cancer cells and recognized as a target for cancer drug discovery. In the present study, a simple and amplification-free fluorescence assay based on polyamidoamine starburst dendrimer (PAMAM dendrimer)-activated paper device is proposed for sensitive detection of telomerase activity through hybridization of Cy5 modified single strand DNA probes with telomerase extension products. The paper substrate is fabricated by hand drawing according to a template, which is low cost, instrument free and easy operation. PAMAM is rich in amino groups on its surface and employed to immobilize the telomerase substrate (TS) primer. Highly sensitive detection of telomerase activity in HeLa cell lysate of 10 cells is achieved since the PAMAM dendrimer-activated paper surface can provide high density of binding sites for immobilization of TS primer. The experimental results also demonstrate that the assay can be employed to evaluate telomerase activity levels of various cell lines and screen telomerase inhibitors.
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Affiliation(s)
- Hua Zhang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China
| | - Zhen Lei
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China; University of Chinese Academy of Sciences, No.19A Yuquan Road, Beijing 100049, PR China
| | - Rongrong Tian
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China; University of Chinese Academy of Sciences, No.19A Yuquan Road, Beijing 100049, PR China
| | - Zhenxin Wang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China.
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39
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Yu Y, Su G, Zhu H, Zhu Q, Chen Y, Xu B, Li Y, Zhang W. Proximity hybridization-mediated isothermal exponential amplification for ultrasensitive electrochemical protein detection. Int J Nanomedicine 2017; 12:5903-5914. [PMID: 28860756 PMCID: PMC5566414 DOI: 10.2147/ijn.s142015] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
In this study, we fabricated a novel electrochemical biosensing platform on the basis of target-triggered proximity hybridization-mediated isothermal exponential amplification reaction (EXPAR) for ultrasensitive protein analysis. Through rational design, the aptamers for protein recognition were integrated within two DNA probes. Via proximity hybridization principle, the affinity protein-binding event was converted into DNA assembly process. The recognition of protein by aptamers can trigger the strand displacement through the increase of the local concentrations of the involved probes. As a consequence, the output DNA was displaced, which can hybridize with the duplex probes immobilized on the electrode surface subsequently, leading to the initiation of the EXPAR as well as the cleavage of duplex probes. Each cleavage will release the gold nanoparticles (AuNPs) binding sequence. With the modification of G-quadruplex sequence, electrochemical signals were yielded by the AuNPs through oxidizing 3,3',5,5'-tetramethylbenzidine in the presence of H2O2. The study we proposed exhibited high sensitivity toward platelet-derived growth factor BB (PDGF-BB) with the detection limit of 52 fM. And, this method also showed great selectivity among the PDGF isoforms and performed well in spiked human serum samples.
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Affiliation(s)
- Yanyan Yu
- School of Pharmacy, Nantong University, Nantong, People's Republic of China
| | - Gaoxing Su
- School of Pharmacy, Nantong University, Nantong, People's Republic of China
| | - Hongyan Zhu
- School of Pharmacy, Nantong University, Nantong, People's Republic of China
| | - Qing Zhu
- School of Pharmacy, Nantong University, Nantong, People's Republic of China
| | - Yong Chen
- School of Pharmacy, Nantong University, Nantong, People's Republic of China
| | - Bohui Xu
- School of Pharmacy, Nantong University, Nantong, People's Republic of China
| | - Yuqin Li
- School of Pharmacy, Nantong University, Nantong, People's Republic of China
| | - Wei Zhang
- School of Pharmacy, Nantong University, Nantong, People's Republic of China
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40
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Min X, Xia L, Zhuang Y, Wang X, Du J, Zhang X, Lou X, Xia F. An AIEgens and exonuclease III aided quadratic amplification assay for detecting and cellular imaging of telomerase activity. Sci Bull (Beijing) 2017; 62:997-1003. [PMID: 36659503 DOI: 10.1016/j.scib.2017.06.008] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Revised: 06/16/2017] [Accepted: 06/19/2017] [Indexed: 01/21/2023]
Abstract
Monitoring telomerase activity with high sensitive and reliable is of great importance to cancer analysis. In this paper, we report a sensitive and facile method to detect telomerase activity using AIEgens modified probe (TPE-Py-DNA) as a fluorescence reporter and exonuclease III (Exo III) as a signal amplifier. With the aid of telomerase, repeat units (TTAGGG)n are extended from the end of template substrate oligonucleotides (TS primer) that form duplex DNAs with TPE-Py-DNA. Then, Exo III catalyzes the digestion of duplex DNAs, liberating elongation product and releasing hydrophobic TPE-Py. The released hydrophobic TPE-Py aggregate together and produce a telomerase-activity-related fluorescence signal. The liberated product hybridizes with another TPE-Py-DNA probe, starting the second cycle. Finally, we obtain the target-to-signal amplification ratio of 1:N2. This strategy exhibits good performance for detecting clinical urine samples (distinguishing 15 cancer patients' samples from 8 healthy ones) and checking intracellular telomerase activity (differentiating cell lines including HeLa, MDA-MB-231, MCF-7, A375, HLF and MRC-5 from the cells pretreated with telomerase-related drug), which shows its potential in clinical diagnosis as well as therapeutic monitoring of cancer.
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Affiliation(s)
- Xuehong Min
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Lei Xia
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Yuan Zhuang
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Xudong Wang
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Jie Du
- College of Materials and Chemistry Engineering, Hainan University, Haikou 570228, China
| | - Xiaojin Zhang
- Faculty of Material Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Xiaoding Lou
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China; Faculty of Material Science and Chemistry, China University of Geosciences, Wuhan 430074, China.
| | - Fan Xia
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China; Faculty of Material Science and Chemistry, China University of Geosciences, Wuhan 430074, China; Shenzhen Institute of Huazhong University of Science & Technology, Shenzhen 518000, China.
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41
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Chen C, Wei M, Liu Y, Xu E, Wei W, Zhang Y, Liu S. Visual and fluorometric determination of telomerase activity by using a cationic conjugated polymer and fluorescence resonance energy transfer. Mikrochim Acta 2017. [DOI: 10.1007/s00604-017-2362-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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42
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Liu X, Wei M, Xu E, Yang H, Wei W, Zhang Y, Liu S. A sensitive, label-free electrochemical detection of telomerase activity without modification or immobilization. Biosens Bioelectron 2017; 91:347-353. [DOI: 10.1016/j.bios.2016.12.054] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Accepted: 12/23/2016] [Indexed: 12/13/2022]
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43
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Abstract
Telomerase plays a significantly important role in keeping the telomere length of a chromosome. Telomerase overexpresses in nearly all tumor cells, suggesting that telomerase could be not only a promising biomarker but also a potential therapeutic target for cancers. Therefore, numerous efforts focusing on the detection of telomerase activity have been reported from polymerase chain reaction (PCR)-based telomeric repeat amplification protocol (TRAP) assays to PCR-free assays such as isothermal amplification in recent decade. In this review, we highlight the strategies for the detection of telomerase activity using isothermal amplification and discuss some of the challenges in designing future telomerase assays as well.
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44
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Yang XJ, Zhang K, Zhang TT, Xu JJ, Chen HY. Reliable Förster Resonance Energy Transfer Probe Based on Structure-Switching DNA for Ratiometric Sensing of Telomerase in Living Cells. Anal Chem 2017; 89:4216-4222. [DOI: 10.1021/acs.analchem.7b00267] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Xue-Jiao Yang
- State Key Laboratory of Analytical
Chemistry for Life Science and Collaborative Innovation Center of
Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Kai Zhang
- State Key Laboratory of Analytical
Chemistry for Life Science and Collaborative Innovation Center of
Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Ting-Ting Zhang
- State Key Laboratory of Analytical
Chemistry for Life Science and Collaborative Innovation Center of
Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Jing-Juan Xu
- State Key Laboratory of Analytical
Chemistry for Life Science and Collaborative Innovation Center of
Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Hong-Yuan Chen
- State Key Laboratory of Analytical
Chemistry for Life Science and Collaborative Innovation Center of
Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
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