1
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Shiraishi M, Nabeshima N, Suzuki K, Fujita M, Iwai S. Endonuclease Q as a robust enhancer for nucleic acid amplification. Anal Biochem 2024; 692:115569. [PMID: 38750682 DOI: 10.1016/j.ab.2024.115569] [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: 03/26/2024] [Revised: 04/30/2024] [Accepted: 05/10/2024] [Indexed: 05/18/2024]
Abstract
Isothermal nucleic acid amplification techniques are attracting increasing attention in molecular diagnosis and biotechnology. However, most existing techniques are complicated by the need for intricate primer design and numerous enzymes and primers. Here, we have developed a simple method, termed NAQ, that employs adding both endonuclease Q (EndoQ) and dUTP/dITP to conventional rolling circle amplification reactions to increase DNA amplification. NAQ does not require intricate primer design or DNA sequence-specific enzymes, and existing isothermal amplification techniques could be readily adapted to include both EndoQ and dUTP/dITP.
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Affiliation(s)
- Miyako Shiraishi
- Department of Cellular Biochemistry, Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, Japan; Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyamacho, Toyonaka, Osaka, Japan.
| | - Noboru Nabeshima
- Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyamacho, Toyonaka, Osaka, Japan
| | - Keiichiro Suzuki
- Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyamacho, Toyonaka, Osaka, Japan; Institute for Advanced Co-Creation Studies, Osaka University, 1-3 Machikaneyamacho, Toyonaka, Osaka, Japan; Graduate School of Frontier Bioscience, Osaka University, 1-3 Yamadaoka, Suita, Osaka, Japan
| | - Masatoshi Fujita
- Department of Cellular Biochemistry, Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, Japan
| | - Shigenori Iwai
- Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyamacho, Toyonaka, Osaka, Japan
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2
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Albayati SH, Nezhad NG, Taki AG, Rahman RNZRA. Efficient and easible biocatalysts: Strategies for enzyme improvement. A review. Int J Biol Macromol 2024; 276:133978. [PMID: 39038570 DOI: 10.1016/j.ijbiomac.2024.133978] [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: 04/18/2024] [Revised: 06/19/2024] [Accepted: 07/16/2024] [Indexed: 07/24/2024]
Abstract
Owing to the environmental friendliness and vast advantages that enzymes offer in the biotechnology and industry fields, biocatalysts are a prolific investigation field. However, the low catalytic activity, stability, and specific selectivity of the enzyme limit the range of the reaction enzymes involved in. A comprehensive understanding of the protein structure and dynamics in terms of molecular details enables us to tackle these limitations effectively and enhance the catalytic activity by enzyme engineering or modifying the supports and solvents. Along with different strategies including computational, enzyme engineering based on DNA recombination, enzyme immobilization, additives, chemical modification, and physicochemical modification approaches can be promising for the wide spread of industrial enzyme usage. This is attributed to the successful application of biocatalysts in industrial and synthetic processes requires a system that exhibits stability, activity, and reusability in a continuous flow process, thereby reducing the production cost. The main goal of this review is to display relevant approaches for improving enzyme characteristics to overcome their industrial application.
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Affiliation(s)
- Samah Hashim Albayati
- Enzyme and Microbial Technology Research Centre, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia; Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
| | - Nima Ghahremani Nezhad
- Enzyme and Microbial Technology Research Centre, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia; Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
| | - Anmar Ghanim Taki
- Department of Radiology Techniques, Health and Medical Techniques College, Alnoor University, Mosul, Iraq
| | - Raja Noor Zaliha Raja Abd Rahman
- Enzyme and Microbial Technology Research Centre, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia; Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia; Institute Bioscience, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia.
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3
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Jiang M, Wang Z, Zhang C, Xu D. High-Performance Suspension Bead Sensor Based on Optical Tweezers and Immuno-Rolling Circle Amplification. Anal Chem 2024; 96:13636-13643. [PMID: 39110483 DOI: 10.1021/acs.analchem.4c02503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/21/2024]
Abstract
In recent years, optical tweezers have become an effective bioassay tool due to their unique advantages, especially in combination with suspension beads, which can be applied to develop a high-performance analysis platform capable of high-quality imaging and stable signal output. However, the optical tweezer-assisted bead analysis is still at the early stage, and further development of different favorable methods is in need. Herein, we have first developed the optical tweezer-assisted immuno-rolling circle amplification (immuno-RCA) on beads for protein detection. Prostate-specific antigen was selected as the model analyte, and the immunosandwich structure on beads was built by the high affinity of "antibody-antigen". The "protein-nucleic acid" signals were effectively converted through the covalent coupling procedure of antibodies and oligonucleotides, further initiating the RCA reaction to achieve signal amplification. The individual beads with the strong irregular Brownian motion in a fluid environment were eventually trapped by the optical tweezers to acquire the accurate and high-quality signal. Compared with the conventional immunoassay on beads, the sensitivity of the developed strategy was increased by 587 times with a limit of detection of 4.29 pg/mL (0.13 pM), as well as excellent specificity, stability, and reproducibility. This study developed the new optical tweezer-assisted beads imaging strategy for protein targets, which has great potential for being applied to clinical serology research and expands the application of optical tweezers in the bioassays.
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Affiliation(s)
- Min Jiang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, No 163, Xianlin Avenue, Nanjing 210023, PR China
| | - Zecheng Wang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, No 163, Xianlin Avenue, Nanjing 210023, PR China
| | - Chenchen Zhang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, No 163, Xianlin Avenue, Nanjing 210023, PR China
| | - Danke Xu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, No 163, Xianlin Avenue, Nanjing 210023, PR China
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4
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Tu Y, Wang Y, Jiang H, Ren H, Wang X, Lv W. A Loop-Mediated Isothermal Amplification Assay for the Rapid Detection of Didymella segeticola Causing Tea Leaf Spot. J Fungi (Basel) 2024; 10:467. [PMID: 39057352 PMCID: PMC11278140 DOI: 10.3390/jof10070467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2024] [Revised: 07/01/2024] [Accepted: 07/02/2024] [Indexed: 07/28/2024] Open
Abstract
Tea leaf spot caused by Didymella segeticola is an important disease that threatens the healthy growth of tea plants (Camellia sinensis) and results in reductions in the productivity and quality of tea leaves. Early diagnosis of the disease is particularly important for managing the infection. Loop-mediated isothermal amplification (LAMP) assay is an efficient diagnostic technique with the advantages of simplicity, specificity, and sensitivity. In this study, we developed a rapid, visual, and high-sensitivity LAMP assay for D. segeticola detection based on sequence-characterized amplified regions. Two pairs of amplification primers (external primers F3 and B3 and internal primers FIP and BIP) were designed based on a specific sequence in D. segeticola (NCBI accession number: OR987684). Compared to common pathogens of other genera in tea plants and other species in the Didymella genus (Didymella coffeae-arabicae, Didymella pomorum, and Didymella sinensis), the LAMP method is specific for detecting the species D. segeticola. The assay was able to detect D. segeticola at a minimal concentration of 1 fg/μL genomic DNA at an optimal reaction temperature of 65 °C for 60 min. When healthy leaves were inoculated with D. segeticola in the laboratory, the LAMP method successfully detected D. segeticola in diseased tea leaves at 72 h post inoculation. The LAMP assays were negative when the DNA samples were extracted from healthy leaves. Leaf tissues with necrotic lesions from 18 germplasms of tea plants tested positive for the pathogen by the LAMP assay. In summary, this study established a specific, sensitive, and simple LAMP method to detect D. segeticola, which provides reliable technical support for estimating disease prevalence and facilitates sustainable management of tea leaf spot.
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Affiliation(s)
- Yiyi Tu
- College of Tea Science and Tea Culture, Zhejiang A&F University, Hangzhou 311300, China; (Y.T.); (Y.W.); (H.J.); (H.R.)
| | - Yuchun Wang
- College of Tea Science and Tea Culture, Zhejiang A&F University, Hangzhou 311300, China; (Y.T.); (Y.W.); (H.J.); (H.R.)
- Tea Research Institute, Chinese Academy of Agricultural Sciences/National Center for Tea Improvement/Key Laboratory of Biology, Genetics and breeding of Special Economic Animals and Plants, Ministry of Agriculture and Rural Affairs, Hangzhou 310008, China
| | - Hong Jiang
- College of Tea Science and Tea Culture, Zhejiang A&F University, Hangzhou 311300, China; (Y.T.); (Y.W.); (H.J.); (H.R.)
| | - Hengze Ren
- College of Tea Science and Tea Culture, Zhejiang A&F University, Hangzhou 311300, China; (Y.T.); (Y.W.); (H.J.); (H.R.)
| | - Xinchao Wang
- College of Tea Science and Tea Culture, Zhejiang A&F University, Hangzhou 311300, China; (Y.T.); (Y.W.); (H.J.); (H.R.)
- Tea Research Institute, Chinese Academy of Agricultural Sciences/National Center for Tea Improvement/Key Laboratory of Biology, Genetics and breeding of Special Economic Animals and Plants, Ministry of Agriculture and Rural Affairs, Hangzhou 310008, China
| | - Wuyun Lv
- College of Tea Science and Tea Culture, Zhejiang A&F University, Hangzhou 311300, China; (Y.T.); (Y.W.); (H.J.); (H.R.)
- Tea Research Institute, Chinese Academy of Agricultural Sciences/National Center for Tea Improvement/Key Laboratory of Biology, Genetics and breeding of Special Economic Animals and Plants, Ministry of Agriculture and Rural Affairs, Hangzhou 310008, China
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Doganay MT, Roman E, Hujer AM, Bonomo RA, Deeks SG, Kuritzkes DR, Draz MS. AMPLON: Amplifying DNA with Multiarm Priming and Looping Optimization of Nucleic Acid. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2311634. [PMID: 38657970 PMCID: PMC11239297 DOI: 10.1002/adma.202311634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 04/22/2024] [Indexed: 04/26/2024]
Abstract
Nucleic acid amplification, the bedrock of biotechnology and molecular diagnostics, surges in applications-especially isothermal approaches-heightening the demand for advanced and precisely engineered methods. Here, a novel approach for amplifying DNA with multiarm priming and looping optimization of nucleic acid (AMPLON) is presented. AMPLON relies on a novel polymeric material with unique set of multiarm polyethylene glycol-DNA primers for efficient DNA amplification under isothermal conditions. Each arm carries single-stranded DNA complementing the sense or antisense sequence of the target DNA. The amplification reaction begins with antisense arms binding to the target DNA, forming a template for sense-carrying arms to direct multiarm large DNA amplicon synthesis through successive DNA looping and unlooping steps. Using human immunodeficiency virus type 1 (HIV-1) as a model clinical target, AMPLON exhibits high sensitivity, detecting target concentrations as low as 100 copies mL-1. Compared to a quantitative real-time polymerase chain reaction assay using sensitive primers, AMPLON reliably identifies HIV-1 RNA in plasma samples (n = 20) with a significant agreement rate of 95%. With its ability to achieve highly specific and sensitive target amplification within 30 min, AMPLON holds immense potential to transform the field of nucleic acid research and unleashing new possibilities in medicine and biotechnology.
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Affiliation(s)
- Mert Tunca Doganay
- Department of Medicine, Case Western Reserve University School of Medicine, Cleveland, OH, 44106, USA
| | - Ethan Roman
- Department of Medicine, Case Western Reserve University School of Medicine, Cleveland, OH, 44106, USA
| | - Andrea M. Hujer
- Department of Medicine, Case Western Reserve University School of Medicine, Cleveland, OH, 44106, USA
- Research Service, Louis Stokes Cleveland Department of Veterans Affairs Medical Center, Cleveland, OH, USA
| | - Robert A. Bonomo
- Department of Medicine, Case Western Reserve University School of Medicine, Cleveland, OH, 44106, USA
- Research Service, Louis Stokes Cleveland Department of Veterans Affairs Medical Center, Cleveland, OH, USA
- Molecular Biology and Microbiology, Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - Steven G. Deeks
- Department of Medicine, University of California, San Francisco, CA, USA
| | - Daniel R. Kuritzkes
- Department of Medicine, Harvard Medical School, Boston, Massachusetts 02115, United States
- Division of Infectious Diseases, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts 02139, USA
| | - Mohamed S. Draz
- Department of Medicine, Case Western Reserve University School of Medicine, Cleveland, OH, 44106, USA
- Molecular Biology and Microbiology, Case Western Reserve University School of Medicine, Cleveland, OH, USA
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, USA
- Department of Biomedical Engineering, Cleveland Clinic, Cleveland, OH, 44106, USA
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6
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Roy SD, Ramasamy S, Obbineni JM. An evaluation of nucleic acid-based molecular methods for the detection of plant viruses: a systematic review. Virusdisease 2024; 35:357-376. [PMID: 39071869 PMCID: PMC11269559 DOI: 10.1007/s13337-024-00863-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Accepted: 04/15/2024] [Indexed: 07/30/2024] Open
Abstract
Precise and timely diagnosis of plant viruses is a prerequisite for the implementation of efficient management strategies, considering factors like globalization of trade and climate change facilitating the spread of viruses that lead to agriculture yield losses of billions yearly worldwide. Symptomatic diagnosis alone may not be reliable due to the diverse symptoms and confusion with plant abiotic stresses. It is crucial to detect plant viruses accurately and reliably and do so with little time. A complete understanding of the various detection methods is necessary to achieve this. Enzyme-linked immunosorbent assay (ELISA), has become more popular as a method for detecting viruses but faces limitations such as antibody availability, cost, sample volume, and time. Advanced techniques like polymerase chain reaction (PCR) have surpassed ELISA with its various sensitive variants. Over the last decade, nucleic acid-based molecular methods have gained popularity and have quickly replaced other techniques, such as serological techniques for detecting plant viruses due to their specificity and accuracy. Hence, this review enables the reader to understand the strengths and weaknesses of each molecular technique starting with PCR and its variations, along with various isothermal amplification followed by DNA microarrays, and next-generation sequencing (NGS). As a result of the development of new technologies, NGS is becoming more and more accessible and cheaper, and it looks possible that this approach will replace others as a favoured approach for carrying out regular diagnosis. NGS is also becoming the method of choice for identifying novel viruses. Supplementary Information The online version contains supplementary material available at 10.1007/s13337-024-00863-0.
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Affiliation(s)
- Subha Deep Roy
- School of Biosciences and Technology, Vellore Institute of Technology, Vellore, Tamil Nadu India
- School of Agricultural Innovations and Advanced Learning, Vellore Institute of Technology, Vellore, Tamil Nadu India
| | | | - Jagan M. Obbineni
- School of Agricultural Innovations and Advanced Learning, Vellore Institute of Technology, Vellore, Tamil Nadu India
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7
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Yu S, Zhang D, Jiang H, Geng L, Deng Y, Xu J. Lateral flow strip assay of a gene segment in the COVID-19 virus with combined dual readout mode and preliminary multisite hybrid chain reaction amplification. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:3249-3255. [PMID: 38726641 DOI: 10.1039/d4ay00074a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2024]
Abstract
The past and present scenario of COVID-19 has revealed the necessity of simple point-of-care tests. When combined with the great advantages of amplification, lateral flow assay nucleic acid analysis represents a more sensitive molecular diagnostic technique compared to universal protein analysis. Room temperature operation, an enzyme-free nature, and in situ elongation make hybrid chain reaction amplification (HCR) a good candidate for amplified combined lateral flow assays (LFAs). Since dual modes of detection can not only satisfy different application scenarios, but also reduce the false-negative rate, in this paper, visual and fluorescent detection based on labelling with colloidal gold nanoparticles and fluorescence labelling were incorporated into a HCR integrated with a LFA. The detection assay was finished in 30 minutes. The linear relationship between the signal and the concentration of the characteristic segment in the COVID-19 ORF gene was demonstrated. The obtained detection limits of as low as 10 fM (6.02 × 103 copies per mL) and 1 fM (6.02 × 102 copies per mL), respectively, were comparable with those in the literature. The multi-site HCR amplification integrated with LFA of a 1053 bp nucleic acid chain was also preliminarily studied, and tri-site amplification was found to exhibit higher signal intensity than single-site amplification. This study provides a promising strategy for simple, sensitive, and wide-ranging detection of pathogenic bacteria.
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Affiliation(s)
- Shiyong Yu
- School of Life Science and Technology, Beijing Institute of Technology, 5 Zhongguancun South Street, Haidian, Beijing, China.
| | - Daoguangyao Zhang
- School of Life Science and Technology, Beijing Institute of Technology, 5 Zhongguancun South Street, Haidian, Beijing, China.
| | - Hao Jiang
- School of Life Science and Technology, Beijing Institute of Technology, 5 Zhongguancun South Street, Haidian, Beijing, China.
| | - Lina Geng
- School of Life Science and Technology, Beijing Institute of Technology, 5 Zhongguancun South Street, Haidian, Beijing, China.
| | - Yulin Deng
- School of Life Science and Technology, Beijing Institute of Technology, 5 Zhongguancun South Street, Haidian, Beijing, China.
| | - Jiandong Xu
- Beijing GeneDetective Medical Treatment Technology Co., Ltd, Floor 3, Building 1B, Yard 27, Innovation Road, Changping Science Park, Beijing, China.
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Pokhrel P, Karna D, Jonchhe S, Mao H. Catalytic Relaxation of Kinetically Trapped Intermediates by DNA Chaperones. J Am Chem Soc 2024; 146:13046-13054. [PMID: 38710657 PMCID: PMC11135164 DOI: 10.1021/jacs.3c14350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/08/2024]
Abstract
Common in biomacromolecules, kinetically trapped misfolded intermediates are often detrimental to the structures, properties, or functions of proteins or nucleic acids. Nature employs chaperone proteins but not nucleic acids to escort intermediates to correct conformations. Herein, we constructed a Jablonski-like diagram of a mechanochemical cycle in which individual DNA hairpins were mechanically unfolded to high-energy states, misfolded into kinetically trapped states, and catalytically relaxed back to ground-state hairpins by a DNA chaperone. The capacity of catalytic relaxation was demonstrated in a 1D DNA hairpin array mimicking nanoassembled materials. At ≥1 μM, the diffusive (or self-walking) DNA chaperone converted the entire array of misfolded intermediates to correct conformation in less than 15 s, which is essential to rapidly prepare homogeneous nanoassemblies. Such an efficient self-walking amplification increases the signal-to-noise ratio, facilitating catalytic relaxation to recognize a 1 fM DNA chaperone in 10 min, a detection limit comparable to the best biosensing strategies.
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Affiliation(s)
- Pravin Pokhrel
- Department of Chemistry and Biochemistry, Kent State University, Kent, Ohio 44242, United States
| | - Deepak Karna
- Department of Chemistry and Biochemistry, Kent State University, Kent, Ohio 44242, United States
| | - Sagun Jonchhe
- Department of Chemistry and Biochemistry, Kent State University, Kent, Ohio 44242, United States
| | - Hanbin Mao
- Department of Chemistry and Biochemistry, Kent State University, Kent, Ohio 44242, United States
- Advanced Materials and Liquid Crystals Institute, Kent State University, Kent, Ohio 44242, United States
- School of Biomedical Sciences, Kent State University, Kent, Ohio 44242, United States
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9
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Meng X, Pang X, Yang J, Zhang X, Dong H. Recent Advances in Electrochemiluminescence Biosensors for MicroRNA Detection. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2307701. [PMID: 38152970 DOI: 10.1002/smll.202307701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 12/06/2023] [Indexed: 12/29/2023]
Abstract
Electrochemiluminescence (ECL) as an analytical technology with a perfect combination of electrochemistry and spectroscopy has received considerable attention in bioanalysis due to its high sensitivity and broad dynamic range. Given the selectivity of bio-recognition elements and the high sensitivity of the ECL analysis technique, ECL biosensors are powerful platforms for the sensitive detection of biomarkers, achieving the accurate prognosis and diagnosis of diseases. MicroRNAs (miRNAs) are crucial biomarkers involved in a variety of physiological and pathological processes, whose aberrant expression is often related to serious diseases, especially cancers. ECL biosensors can fulfill the highly sensitive and selective requirements for accurate miRNA detection, prompting this review. The ECL mechanisms are initially introduced and subsequently categorize the ECL biosensors for miRNA detection in terms of the quenching agents. Furthermore, the work highlights the signal amplification strategies for enhancing ECL signal to improve the sensitivity of miRNA detection and finally concludes by looking at the challenges and opportunities in ECL biosensors for miRNA detection.
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Affiliation(s)
- Xiangdan Meng
- Beijing Key Laboratory for Bioengineering and Sensing Technology Research Centre for Bioengineering and Sensing Technology School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 10083, P. R. China
| | - Xuejiao Pang
- Beijing Key Laboratory for Bioengineering and Sensing Technology Research Centre for Bioengineering and Sensing Technology School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 10083, P. R. China
| | - Junyan Yang
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, P. R. China
| | - Xueji Zhang
- Beijing Key Laboratory for Bioengineering and Sensing Technology Research Centre for Bioengineering and Sensing Technology School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 10083, P. R. China
- Marshall Laboratory of Biomedical Engineering, Precision Medicine and Health Research Institute, Shenzhen Key Laboratory for Nano-Biosensing Technology, School of Biomedical Engineering, Shenzhen University Medical School, Shenzhen University, Guangdong, 518060, P. R. China
| | - Haifeng Dong
- Beijing Key Laboratory for Bioengineering and Sensing Technology Research Centre for Bioengineering and Sensing Technology School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 10083, P. R. China
- Marshall Laboratory of Biomedical Engineering, Precision Medicine and Health Research Institute, Shenzhen Key Laboratory for Nano-Biosensing Technology, School of Biomedical Engineering, Shenzhen University Medical School, Shenzhen University, Guangdong, 518060, P. R. China
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10
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Liao Y, Liu Y, Feng Y, Zhen D, He F. Rapid Detection of Broad-Spectrum Pathogenic Bacteria Based on Highly Sensitive Proton Response of the Nucleic Acid Amplification SPQC Platform. Anal Chem 2024; 96:6756-6763. [PMID: 38625745 DOI: 10.1021/acs.analchem.4c00437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/17/2024]
Abstract
Pathogenic bacteria significantly contribute to elevated morbidity and mortality rates, highlighting the urgent need for early and precise detection. Currently, there is a paucity of effective broad-spectrum methods for detecting pathogenic bacteria. We have developed an innovative proton-responsive series piezoelectric quartz crystal (PR-SPQC) platform for the broad-spectrum identification of pathogenic bacteria. This was achieved by retrieving and aligning sequences from the NCBI GenBank database to identify and validate 16S rRNA oligonucleotide sequences that are signatures of pathogenic bacteria but absent in humans or fungi. The hyperbranched rolling circle amplification, activated exclusively by the screened target, exponentially generates protons that are detected by SPQC through a 2D polyaniline (PANI) film. The PR-SPQC platform demonstrates broad-spectrum capabilities in detecting pathogenic bacteria, with a detection limit of 2 CFU/mL within 90 min. Clinical testing of blood samples yielded satisfactory results. With its advantages in miniaturization, cost efficiency, and suitability for point-of-care testing, PR-SPQC has the potential to be extensively used for the rapid identification of diverse pathogenic bacteria within clinical practice and public health sectors.
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Affiliation(s)
- Yusheng Liao
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, PR China
| | - Yu Liu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, PR China
| | - Ye Feng
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, PR China
| | - Deshuai Zhen
- Hunan Key Laboratory of Typical Environment Pollution and Health Hazards, School of Public Health, University of South China, Hengyang 421001, PR China
| | - Fengjiao He
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, PR China
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11
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Lei Y, Xu D. Rapid Nucleic Acid Diagnostic Technology for Pandemic Diseases. Molecules 2024; 29:1527. [PMID: 38611806 PMCID: PMC11013254 DOI: 10.3390/molecules29071527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Revised: 03/17/2024] [Accepted: 03/19/2024] [Indexed: 04/14/2024] Open
Abstract
The recent global pandemic of coronavirus disease 2019 (COVID-19) has enormously promoted the development of diagnostic technology. To control the spread of pandemic diseases and achieve rapid screening of the population, ensuring that patients receive timely treatment, rapid diagnosis has become the top priority in the development of clinical technology. This review article aims to summarize the current rapid nucleic acid diagnostic technologies applied to pandemic disease diagnosis, from rapid extraction and rapid amplification to rapid detection. We also discuss future prospects in the development of rapid nucleic acid diagnostic technologies.
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Affiliation(s)
- Yu Lei
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology (NCNST), Chinese Academy of Sciences (CAS), Beijing 100190, China;
- University of Chinese Academy of Sciences (UCAS), Beijing 100049, China
| | - Dawei Xu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology (NCNST), Chinese Academy of Sciences (CAS), Beijing 100190, China;
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12
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Wang Z, Cheng W, Dong Z, Yao X, Deng X, Ou C. A CRISPR/LbCas12a-based method for detection of bacterial fruit blotch pathogens in watermelon. Microbiol Spectr 2024; 12:e0384623. [PMID: 38299831 PMCID: PMC10913525 DOI: 10.1128/spectrum.03846-23] [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: 11/03/2023] [Accepted: 12/26/2023] [Indexed: 02/02/2024] Open
Abstract
Acidovorax citrulli is the main pathogen causing bacterial fruit blotch, which seriously threatens the global watermelon industry. At present, rapid, sensitive, and low-cost detection methods are urgently needed. The established CRISPR/LbCas12a visual detection method can specifically detect A. citrulli and does not cross-react with other pathogenic bacteria such as Erwinia tracheiphila, Pseudomonas syringae, and Xanthomonas campestris. The sensitivity of this method for genomic DNA detection is as low as 0.7 copies/μL, which is higher than conventional PCR and real-time PCR. In addition, this method only takes 2.5 h from DNA extraction to quantitative detection and does not require complex operation and sample treatment. Additionally, the technique was applied to test real watermelon seed samples for A. citrulli, and the results were contrasted with those of real-time fluorescence quantitative PCR and conventional PCR. The high sensitivity and specificity have broad application prospects in the rapid detection of bacterial fruit blotch bacterial pathogens of watermelon.IMPORTANCEBacterial fruit blotch, Acidovorax citrulli, is an important seed-borne bacterial disease of watermelon, melon, and other cucurbits. The lack of rapid, sensitive, and reliable pathogen detection methods has hampered research on fruit spot disease prevention and control. Here, we demonstrate the CRISPR/Cas12a system to analyze aspects of the specificity and sensitivity of A. citrulli and to test actual watermelon seed samples. The results showed that the CRISPR/Cas12a-based free-amplification method for detecting bacterial fruit blotch pathogens of watermelons was specific for A. citrulli target genes and 100-fold more sensitive than conventional PCR with quantitative real-time PCR. This method provides a new technical tool for the detection of A. citrulli.
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Affiliation(s)
- Zelu Wang
- Engineering Technology Research Center of Anti-aging Chinese Herbal Medicine, School of Biology and Food Engineering, Fuyang Normal University, Fuyang, Anhui, China
| | - Wenhui Cheng
- Engineering Technology Research Center of Anti-aging Chinese Herbal Medicine, School of Biology and Food Engineering, Fuyang Normal University, Fuyang, Anhui, China
| | - Zhiyu Dong
- Engineering Technology Research Center of Anti-aging Chinese Herbal Medicine, School of Biology and Food Engineering, Fuyang Normal University, Fuyang, Anhui, China
| | - Xiamei Yao
- School of Architecture and Urban Planning, Anhui Jianzhu University, Hefei, Anhui, China
| | - Xu Deng
- Southern Subtropicals Grops Research Institute, Zhanjiang, Guangdong, China
| | - Chun Ou
- Engineering Technology Research Center of Anti-aging Chinese Herbal Medicine, School of Biology and Food Engineering, Fuyang Normal University, Fuyang, Anhui, China
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13
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Wu Q, Yu Y, Chen M, Long J, Yang X. A label-free fluorescence sensing strategy based on GlaI-assisted EXPAR for rapid and accurate quantification of human methyltranferase activity. Talanta 2024; 269:125456. [PMID: 38061202 DOI: 10.1016/j.talanta.2023.125456] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 09/23/2023] [Accepted: 11/20/2023] [Indexed: 01/05/2024]
Abstract
DNA methylation plays an important role in epigenetic modification. DNA methyltransferase (DNMT) is essential in the DNA methylation process, and its abnormal expression is closely related to cancer. In this study, we propose a novel biosensor platform (DS-GlaI-EXPAR) that combines hemi-methylated double-stranded DNA (dsDNA) as the substrate for DNMT1 with GlaI-assisted isothermal exponential amplification reaction (EXPAR) for rapid, simple, and sensitive detection of DNMT1 activity. The hemi-methylated dsDNA is fully methylated by DNMT1, and GlaI recognizes and cleaves the fully methylated sequence, generating terminal fragments that trigger EXPAR for efficient signal amplification. Whereas hemi-methylated dsDNA without DNMT1 will keep intact and cannot initiate EXPAR. DNMT1 activity can therefore be sensitively quantified by the real-time fluorescence signal of the DS-GlaI-EXPAR platform. The high-efficiency amplification of EXPAR and the recognition of GlaI enable the platform to overcome the inherent cumbersome and time-consuming shortcomings of traditional methods while meeting specificity and sensitivity. This DS-GlaI-EXPAR platform offers an impressively low limit of detection of 0.86 pg/μL and the entire detection process can be completed in a short time of 2.5 h in a single tube. Furthermore, DNMT1 activity detected by this platform in MCF-7 cells was significantly higher than that of HEK293 cells, and the inhibition of Apt. #9 was verified. This DNMT1 activity detection platform is very convenient and effective for the discovery of inhibitors and early cancer diagnosis.
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Affiliation(s)
- Qiaomin Wu
- Clinical Laboratory, Dongyang People's Hospital, Dongyang, Zhejiang, 322100, China; Key Laboratory of Medical Laboratory Diagnostics of the Education Ministry, College of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, China
| | - Yang Yu
- Key Laboratory of Medical Laboratory Diagnostics of the Education Ministry, College of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, China
| | - Mengqi Chen
- Key Laboratory of Medical Laboratory Diagnostics of the Education Ministry, College of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, China
| | - Jinyan Long
- Key Laboratory of Medical Laboratory Diagnostics of the Education Ministry, College of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, China
| | - Xiaolan Yang
- Key Laboratory of Medical Laboratory Diagnostics of the Education Ministry, College of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, China.
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14
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Wang Z, He S, Zhang C, Xu D. A label-free aptasensing method for detecting SARS-CoV-2 virus antigen by using dumbbell probe-mediated circle-to-circle amplification. Anal Bioanal Chem 2024; 416:1961-1970. [PMID: 38349532 DOI: 10.1007/s00216-024-05195-y] [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: 12/19/2023] [Revised: 01/28/2024] [Accepted: 02/02/2024] [Indexed: 03/01/2024]
Abstract
Controlling the spread of pathogen requires an efficient and accurate diagnosis. Compared with nucleic acid and antibody detection, antigen assays are more convenient to meet clinical diagnostic needs. However, antigen detection is often difficult to achieve high sensitivity in a limited time. In this work, a novel aptasensing method was designed for the purpose of SARS-CoV-2 antigen detection, using a dumbbell padlock probe-mediated circle-to-circle amplification (C2CA) approach. A sandwich complex of antibody-antigen-aptamer is first formed on the magnetic beads. Afterwards, the signal is amplified by a C2CA reaction involving two tandem rolling circle amplifications. Without special instruments or nanomaterials, a detection limit of 575 fg/mL for S1 protein can be achieved in less than 2 h. In the case of the spike pseudovirus SARS-CoV-2 in artificial saliva, the detection limit is 272 TU/μL, which is much lower than average viral load in patients. Therefore, our method provides a timely, efficient and accurate approach for the clinical diagnosis of SARS-CoV-2. It also opens up the application of C2CA in aptamer sensing and antigen detection.
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Affiliation(s)
- Zecheng Wang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, No 163, Xianlin Avenue, Nanjing, 210023, People's Republic of China
| | - Si He
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, No 163, Xianlin Avenue, Nanjing, 210023, People's Republic of China
| | - Chenchen Zhang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, No 163, Xianlin Avenue, Nanjing, 210023, People's Republic of China
| | - Danke Xu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, No 163, Xianlin Avenue, Nanjing, 210023, People's Republic of China.
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15
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Zhou Q, Ding X, Du W, Wang H, Wu S, Li J, Yang S. Multi-enzymatic systems synergize new RCA technique amplified super-long dsDNA from DNA circle. Anal Chim Acta 2024; 1291:342220. [PMID: 38280785 DOI: 10.1016/j.aca.2024.342220] [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: 12/15/2023] [Accepted: 01/05/2024] [Indexed: 01/29/2024]
Abstract
BACKGROUND In the field of DNA amplification, there are great challenges in the effectively amplify of long-chain amplification, especially amplification up to several hundred kb level. RESULTS A novel technique for the unbiased whole genome amplification from a thimbleful of DNA circles, such as low as 10 ng/ 10 μL of the circular cpDNA or low as 5 ng/ 10 μL of the plasmid, is developed, which can amplify an abundance of the whole genome sequences. Specifically, the new technique that combines rolling-amplification and triple-enzyme system presents a tightly controlled process of a series of buffers/reactions and optimized procedures, that applies from the primer-template duplexes to the Elution step. The result of this technique provides a new approach for extending RCA capacity, where it can reach 200 kb from the circular cpDNA amplification and 150 kb from the plasmid DNA amplification, that demonstrates superior breadth and evenness of genome coverage, high reproducibility, small amplification bias with the amplification efficiency. SIGNIFICANCE AND NOVELTY This new technique will develop into one of the powerful tools for isothermal DNA amplification in vitro, genome sequencing/analysis, phylogenetic analysis, physical mapping, and other molecular biology applications.
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Affiliation(s)
- Qiang Zhou
- Key Laboratory of Biology and Genetics Improvement of Soybean, Ministry of Agriculture of the People's Republic of China, Nanjing Agricultural University, Nanjing, 210095, PR China; Zhongshan Biological Breeding Laboratory (ZSBBL), Nanjing Agricultural University, Nanjing, 210095, PR China; National Innovation Platform for Soybean Breeding and Industry-Education Integration, Nanjing Agricultural University, Nanjing, 210095, PR China; State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Nanjing Agricultural University, Nanjing, 210095, PR China; National Center for Soybean Improvement, Nanjing Agricultural University, Nanjing, 210095, PR China; Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing Agricultural University, Nanjing, 210095, PR China; Soybean Research Institute, Nanjing Agricultural University, Nanjing, 210095, PR China; College of Agriculture, Nanjing Agricultural University, Nanjing, 210095, PR China.
| | - Xianlong Ding
- Key Laboratory of Biology and Genetics Improvement of Soybean, Ministry of Agriculture of the People's Republic of China, Nanjing Agricultural University, Nanjing, 210095, PR China; Zhongshan Biological Breeding Laboratory (ZSBBL), Nanjing Agricultural University, Nanjing, 210095, PR China; National Innovation Platform for Soybean Breeding and Industry-Education Integration, Nanjing Agricultural University, Nanjing, 210095, PR China; State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Nanjing Agricultural University, Nanjing, 210095, PR China; National Center for Soybean Improvement, Nanjing Agricultural University, Nanjing, 210095, PR China; Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing Agricultural University, Nanjing, 210095, PR China; Soybean Research Institute, Nanjing Agricultural University, Nanjing, 210095, PR China; College of Agriculture, Nanjing Agricultural University, Nanjing, 210095, PR China.
| | - Wanqing Du
- Key Laboratory of Biology and Genetics Improvement of Soybean, Ministry of Agriculture of the People's Republic of China, Nanjing Agricultural University, Nanjing, 210095, PR China; Zhongshan Biological Breeding Laboratory (ZSBBL), Nanjing Agricultural University, Nanjing, 210095, PR China; National Innovation Platform for Soybean Breeding and Industry-Education Integration, Nanjing Agricultural University, Nanjing, 210095, PR China; State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Nanjing Agricultural University, Nanjing, 210095, PR China; National Center for Soybean Improvement, Nanjing Agricultural University, Nanjing, 210095, PR China; Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing Agricultural University, Nanjing, 210095, PR China; Soybean Research Institute, Nanjing Agricultural University, Nanjing, 210095, PR China; College of Agriculture, Nanjing Agricultural University, Nanjing, 210095, PR China.
| | - Hongjie Wang
- Key Laboratory of Biology and Genetics Improvement of Soybean, Ministry of Agriculture of the People's Republic of China, Nanjing Agricultural University, Nanjing, 210095, PR China; Zhongshan Biological Breeding Laboratory (ZSBBL), Nanjing Agricultural University, Nanjing, 210095, PR China; National Innovation Platform for Soybean Breeding and Industry-Education Integration, Nanjing Agricultural University, Nanjing, 210095, PR China; State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Nanjing Agricultural University, Nanjing, 210095, PR China; National Center for Soybean Improvement, Nanjing Agricultural University, Nanjing, 210095, PR China; Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing Agricultural University, Nanjing, 210095, PR China; Soybean Research Institute, Nanjing Agricultural University, Nanjing, 210095, PR China; College of Agriculture, Nanjing Agricultural University, Nanjing, 210095, PR China.
| | - Shuo Wu
- Key Laboratory of Biology and Genetics Improvement of Soybean, Ministry of Agriculture of the People's Republic of China, Nanjing Agricultural University, Nanjing, 210095, PR China; Zhongshan Biological Breeding Laboratory (ZSBBL), Nanjing Agricultural University, Nanjing, 210095, PR China; National Innovation Platform for Soybean Breeding and Industry-Education Integration, Nanjing Agricultural University, Nanjing, 210095, PR China; State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Nanjing Agricultural University, Nanjing, 210095, PR China; National Center for Soybean Improvement, Nanjing Agricultural University, Nanjing, 210095, PR China; Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing Agricultural University, Nanjing, 210095, PR China; Soybean Research Institute, Nanjing Agricultural University, Nanjing, 210095, PR China; College of Agriculture, Nanjing Agricultural University, Nanjing, 210095, PR China.
| | - Jun Li
- Key Laboratory of Biology and Genetics Improvement of Soybean, Ministry of Agriculture of the People's Republic of China, Nanjing Agricultural University, Nanjing, 210095, PR China; Zhongshan Biological Breeding Laboratory (ZSBBL), Nanjing Agricultural University, Nanjing, 210095, PR China; National Innovation Platform for Soybean Breeding and Industry-Education Integration, Nanjing Agricultural University, Nanjing, 210095, PR China; State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Nanjing Agricultural University, Nanjing, 210095, PR China; National Center for Soybean Improvement, Nanjing Agricultural University, Nanjing, 210095, PR China; Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing Agricultural University, Nanjing, 210095, PR China; Soybean Research Institute, Nanjing Agricultural University, Nanjing, 210095, PR China; College of Agriculture, Nanjing Agricultural University, Nanjing, 210095, PR China.
| | - Shouping Yang
- Key Laboratory of Biology and Genetics Improvement of Soybean, Ministry of Agriculture of the People's Republic of China, Nanjing Agricultural University, Nanjing, 210095, PR China; Zhongshan Biological Breeding Laboratory (ZSBBL), Nanjing Agricultural University, Nanjing, 210095, PR China; National Innovation Platform for Soybean Breeding and Industry-Education Integration, Nanjing Agricultural University, Nanjing, 210095, PR China; State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Nanjing Agricultural University, Nanjing, 210095, PR China; National Center for Soybean Improvement, Nanjing Agricultural University, Nanjing, 210095, PR China; Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing Agricultural University, Nanjing, 210095, PR China; Soybean Research Institute, Nanjing Agricultural University, Nanjing, 210095, PR China; College of Agriculture, Nanjing Agricultural University, Nanjing, 210095, PR China.
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16
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Akhmetzianova LU, Davletkulov TM, Sakhabutdinova AR, Chemeris AV, Gubaydullin IM, Garafutdinov RR. LAMPrimers iQ: New primer design software for loop-mediated isothermal amplification (LAMP). Anal Biochem 2024; 684:115376. [PMID: 37924966 DOI: 10.1016/j.ab.2023.115376] [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: 08/01/2023] [Revised: 10/31/2023] [Accepted: 11/01/2023] [Indexed: 11/06/2023]
Abstract
Nucleic acids amplification is a widely used technique utilized for different manipulations with DNA and RNA. Although, polymerase chain reaction (PCR) remains the most popular amplification method, isothermal approaches are gained more attention last decades. Among these, loop-mediated isothermal amplification (LAMP) became an excellent alternative to PCR. LAMP requires an increased number of primers and, therefore, is considered a highly specific amplification reaction compared to PCR. LAMP primers design is still a non-trivial task, and all niceties should be taken into account during their selection. Here, we report on a new program called LAMPrimers iQ destined for high-quality LAMP primers design. LAMPrimers iQ is based on an original algorithm considering rigorous criteria for primers selection. Unlike alternative programs, LAMPrimers iQ can process long DNA or RNA sequences, and completely avoid primers that can form homo- and heterodimers. The quality of the primers designed was checked using SARS-CoV-2 coronavirus RNA as a model target. It was shown that primers selected with LAMPrimers iQ provide higher specificity and reliable detection of viral RNA compared to those obtained by alternative programs. The program is available at https://github.com/Restily/LAMPrimers-iQ.
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Affiliation(s)
- Liana U Akhmetzianova
- Institute of Petrochemistry and Catalysis, Ufa Federal Research Center, Russian Academy of Sciences, 450075, prosp. Oktyabrya, 141, Ufa, Bashkortostan, Russian Federation; Ufa State Petroleum Technological University, 450064, st. Cosmonauts, 1, Ufa, Bashkortostan, Russian Federation.
| | - Timur M Davletkulov
- Ufa State Petroleum Technological University, 450064, st. Cosmonauts, 1, Ufa, Bashkortostan, Russian Federation.
| | - Assol R Sakhabutdinova
- Institute of Biochemistry and Genetics, Ufa Federal Research Center, Russian Academy of Sciences, 450054, prosp. Oktyabrya, 71, Ufa, Bashkortostan, Russian Federation.
| | - Alexey V Chemeris
- Institute of Biochemistry and Genetics, Ufa Federal Research Center, Russian Academy of Sciences, 450054, prosp. Oktyabrya, 71, Ufa, Bashkortostan, Russian Federation.
| | - Irek M Gubaydullin
- Institute of Petrochemistry and Catalysis, Ufa Federal Research Center, Russian Academy of Sciences, 450075, prosp. Oktyabrya, 141, Ufa, Bashkortostan, Russian Federation; Ufa State Petroleum Technological University, 450064, st. Cosmonauts, 1, Ufa, Bashkortostan, Russian Federation.
| | - Ravil R Garafutdinov
- Institute of Biochemistry and Genetics, Ufa Federal Research Center, Russian Academy of Sciences, 450054, prosp. Oktyabrya, 71, Ufa, Bashkortostan, Russian Federation.
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17
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Arslan S, Garcia FJ, Guo M, Kellinger MW, Kruglyak S, LeVieux JA, Mah AH, Wang H, Zhao J, Zhou C, Altomare A, Bailey J, Byrne MB, Chang C, Chen SX, Cho B, Dennler CN, Dien VT, Fuller D, Kelley R, Khandan O, Klein MG, Kim M, Lajoie BR, Lin B, Liu Y, Lopez T, Mains PT, Price AD, Robertson SR, Taylor-Weiner H, Tippana R, Tomaney AB, Zhang S, Abtahi M, Ambroso MR, Bajari R, Bellizzi AM, Benitez CB, Berard DR, Berti L, Blease KN, Blum AP, Boddicker AM, Bondar L, Brown C, Bui CA, Calleja-Aguirre J, Cappa K, Chan J, Chang VW, Charov K, Chen X, Constandse RM, Damron W, Dawood M, DeBuono N, Dimalanta JD, Edoli L, Elango K, Faustino N, Feng C, Ferrari M, Frankie K, Fries A, Galloway A, Gavrila V, Gemmen GJ, Ghadiali J, Ghorbani A, Goddard LA, Guetter AR, Hendricks GL, Hentschel J, Honigfort DJ, Hsieh YT, Hwang Fu YH, Im SK, Jin C, Kabu S, Kincade DE, Levy S, Li Y, Liang VK, Light WH, Lipsher JB, Liu TL, Long G, Ma R, Mailloux JM, Mandla KA, Martinez AR, Mass M, McKean DT, Meron M, Miller EA, Moh CS, Moore RK, Moreno J, Neysmith JM, Niman CS, Nunez JM, Ojeda MT, Ortiz SE, Owens J, Piland G, Proctor DJ, Purba JB, Ray M, Rong D, Saade VM, Saha S, Tomas GS, Scheidler N, Sirajudeen LH, Snow S, Stengel G, Stinson R, Stone MJ, Sundseth KJ, Thai E, Thompson CJ, Tjioe M, Trejo CL, Trieger G, Truong DN, Tse B, Voiles B, Vuong H, Wong JC, Wu CT, Yu H, Yu Y, Yu M, Zhang X, Zhao D, Zheng G, He M, Previte M. Sequencing by avidity enables high accuracy with low reagent consumption. Nat Biotechnol 2024; 42:132-138. [PMID: 37231263 DOI: 10.1038/s41587-023-01750-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Accepted: 03/15/2023] [Indexed: 05/27/2023]
Abstract
We present avidity sequencing, a sequencing chemistry that separately optimizes the processes of stepping along a DNA template and that of identifying each nucleotide within the template. Nucleotide identification uses multivalent nucleotide ligands on dye-labeled cores to form polymerase-polymer-nucleotide complexes bound to clonal copies of DNA targets. These polymer-nucleotide substrates, termed avidites, decrease the required concentration of reporting nucleotides from micromolar to nanomolar and yield negligible dissociation rates. Avidity sequencing achieves high accuracy, with 96.2% and 85.4% of base calls having an average of one error per 1,000 and 10,000 base pairs, respectively. We show that the average error rate of avidity sequencing remained stable following a long homopolymer.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Bill Lin
- Element Biosciences, San Diego, CA, USA
| | - Yu Liu
- Element Biosciences, San Diego, CA, USA
| | | | | | | | | | | | | | | | - Su Zhang
- Element Biosciences, San Diego, CA, USA
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Xiyi Chen
- Element Biosciences, San Diego, CA, USA
| | | | | | | | | | | | | | | | | | - Chao Feng
- Element Biosciences, San Diego, CA, USA
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Yu Li
- Element Biosciences, San Diego, CA, USA
| | | | | | | | | | | | - Rui Ma
- Element Biosciences, San Diego, CA, USA
| | | | | | | | - Max Mass
- Element Biosciences, San Diego, CA, USA
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Ben Tse
- Element Biosciences, San Diego, CA, USA
| | | | | | | | | | - Hua Yu
- Element Biosciences, San Diego, CA, USA
| | | | - Ming Yu
- Element Biosciences, San Diego, CA, USA
| | - Xi Zhang
- Element Biosciences, San Diego, CA, USA
| | - Da Zhao
- Element Biosciences, San Diego, CA, USA
| | | | - Molly He
- Element Biosciences, San Diego, CA, USA
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18
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Zhang X, Dou H, Chen X, Lin M, Dai Y, Xia F. Solid-State Nanopore Sensors with Enhanced Sensitivity through Nucleic Acid Amplification. Anal Chem 2023; 95:17153-17161. [PMID: 37966312 DOI: 10.1021/acs.analchem.3c03806] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2023]
Abstract
Solid-state nanopores have wide applications in DNA sequencing, energy conversion and storage, seawater desalination, sensors, and reactors due to their high stability, controllable geometry, and a variety of pore-forming materials. Solid-state nanopore sensors can be used for qualitative and quantitative analyses of ions, small molecules, proteins, and nucleic acids. The combination of nucleic acid amplification and solid-state nanopores to achieve trace detection of analytes is gradually attracting attention. This review outlines nucleic acid amplification strategies for enhancing the sensitivity of solid-state nanopore sensors by summarizing the articles published in the past 10 years. The future development prospects and challenges of nucleic acid amplification in solid-state nanopore sensors are discussed. This review helps readers better understand the field of solid-state nanopore sensors. We believe that solid-state nanopore sensors will break through the bottleneck of traditional detection and become a powerful single-molecule detection platform.
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Affiliation(s)
- Xiaojin Zhang
- 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, Wuhan 430074, China
| | - Huimin Dou
- 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, Wuhan 430074, China
| | - Xiaorui 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, Wuhan 430074, China
| | - Meihua 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, Wuhan 430074, China
| | - Yu Dai
- 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, Wuhan 430074, 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, Wuhan 430074, China
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19
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Zhou J, Wang TY, Lan Z, Yang HJ, Ye XJ, Min R, Wang ZH, Huang Q, Cao J, Gao YE, Wang WL, Sun XL, Zhang Y. Strategy of functional nucleic acids-mediated isothermal amplification for detection of foodborne microbial contaminants: A review. Food Res Int 2023; 173:113286. [PMID: 37803599 DOI: 10.1016/j.foodres.2023.113286] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 07/13/2023] [Accepted: 07/14/2023] [Indexed: 10/08/2023]
Abstract
Foodborne microbial contamination (FMC) is the leading cause of food poisoning and foodborne illness. The foodborne microbial detection methods based on isothermal amplification have high sensitivity and short detection time, and functional nucleic acids (FNAs) could extend the detectable object of isothermal amplification to mycotoxins. Therefore, the strategy of FNAs-mediated isothermal amplification has been emergingly applied in biosensors for foodborne microbial contaminants detection, making biosensors more sensitive with lower cost and less dependent on nanomaterials for signal output. Here, the mechanism of six isothermal amplification technologies and their application in detecting FMC is firstly introduced. Then the strategy of FNAs-mediated isothermal amplification is systematically discussed from perspectives of FNAs' versatility including recognition elements (Aptamer, DNAzyme), programming tools (DNA tweezer, DNA walker and CRISPR-Cas) and signal units (G-quadruplex, FNAs-based nanomaterials). Finally, challenges and prospects are presented in terms of addressing the issue of nonspecific amplification reaction, developing better FNAs-based sensing elements and eliminating food matrix effects.
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Affiliation(s)
- Jie Zhou
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China; International Joint Laboratory on Food Safety, Institute of Analytical Food Safety, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China; School of Biotechnology, Jiangnan University, Wuxi, 214122, China
| | - Teng-Yu Wang
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China; International Joint Laboratory on Food Safety, Institute of Analytical Food Safety, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Zhi Lan
- Wuxi Medical School, Jiangnan University, Wuxi 214122, China
| | - Han-Jie Yang
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China; International Joint Laboratory on Food Safety, Institute of Analytical Food Safety, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Xing-Jian Ye
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China; International Joint Laboratory on Food Safety, Institute of Analytical Food Safety, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Rui Min
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China; International Joint Laboratory on Food Safety, Institute of Analytical Food Safety, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Zhao-Hui Wang
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China; International Joint Laboratory on Food Safety, Institute of Analytical Food Safety, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Qing Huang
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China; International Joint Laboratory on Food Safety, Institute of Analytical Food Safety, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Jing Cao
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China; International Joint Laboratory on Food Safety, Institute of Analytical Food Safety, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Yu-E Gao
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China; International Joint Laboratory on Food Safety, Institute of Analytical Food Safety, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Wen-Long Wang
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China; International Joint Laboratory on Food Safety, Institute of Analytical Food Safety, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Xiu-Lan Sun
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China; International Joint Laboratory on Food Safety, Institute of Analytical Food Safety, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Yi Zhang
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China; International Joint Laboratory on Food Safety, Institute of Analytical Food Safety, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China.
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20
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Zhao S, Jia Y, Wang A, Yang J, Yang L. Dual-mode DNA walker-based optical fiber biosensor for ultrasensitive detection of microRNAs. Biosens Bioelectron 2023; 239:115613. [PMID: 37607447 DOI: 10.1016/j.bios.2023.115613] [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: 04/29/2023] [Revised: 08/06/2023] [Accepted: 08/17/2023] [Indexed: 08/24/2023]
Abstract
We present a novel dual-mode DNA-walker based optical fiber biosensor (DMDW-Opt biosensor) for sensitive assay of micro-RNAs in bio-samples. In the sensor system, we develop a new strategy for the cascade amplification, DNA-walker/rolling cycle amplification (RCA), by the use of the residue track of the walker. The strategy can significantly improve the response of the sensor and avoid any tedious operation procedure. Dual-mode readouts, i.e., fluorescence and chemiluminescence, are measured independently without interfering with each other to achieve reliable and accurate analysis. Optical fibers with the surface modified by gold nanoparticles are utilized as the support for fabrication of the sensor, which would be benefit for developing miniaturized and portable sensing devices. The performance of the proposed method is evaluated by using micro-RNAs (MiR-155 and MiR-21) as the analytical target. The method is successfully applied for accurate determination of micoRNAs in human serum and MCF-7 cells. Our method can perform sensitive assays of MiR-155 with limit-of-detection as low as 97.72 fM and 11.22 fM, MiR-21 with limit-of-detection as low as 107.15 fM and 8.32 fM for the fluorescence- and the chemiluminescence-readout respectively, and the biosensor exhibits excellent specificity, reproducibility and storage stability, indicating its valuable potential applications for sensing trace-amount targets in complicated real samples.
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Affiliation(s)
- Siqi Zhao
- Department of Chemistry, Northeast Normal University, 5268 Renmin Street, Changchun, Jilin Province, 130024, China
| | - Yaxue Jia
- Department of Chemistry, Northeast Normal University, 5268 Renmin Street, Changchun, Jilin Province, 130024, China
| | - Anping Wang
- Department of Chemistry, Northeast Normal University, 5268 Renmin Street, Changchun, Jilin Province, 130024, China
| | - Jinlan Yang
- Department of Chemistry, Northeast Normal University, 5268 Renmin Street, Changchun, Jilin Province, 130024, China
| | - Li Yang
- Department of Chemistry, Northeast Normal University, 5268 Renmin Street, Changchun, Jilin Province, 130024, China.
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21
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Kyung K, Ku J, Cho E, Ryu J, Woo J, Jung W, Kim DE. Fluorometric Detection of SARS-CoV-2 Single-Nucleotide Variant L452R Using Ligation-Based Isothermal Gene Amplification. Bioengineering (Basel) 2023; 10:1116. [PMID: 37892846 PMCID: PMC10603929 DOI: 10.3390/bioengineering10101116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 09/02/2023] [Accepted: 09/20/2023] [Indexed: 10/29/2023] Open
Abstract
Since the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variant was first discovered, several variants showing different infectivity and immune responses have emerged globally. As the conventional method, whole-genome sequencing following polymerase chain reaction (PCR) is currently used for diagnosis of SARS-CoV-2 mutations. However, these conventional PCR-based direct DNA sequencing methods are time-consuming, complicated, and require expensive DNA sequencing modules. Here, we developed a fluorometric method for the accurate detection of a single missense mutation of U to G in the spike (S) gene that changes leucine to arginine (L452R) in SARS-CoV-2 genomic RNA. Our method for the detection of single-nucleotide mutations (SNM) in the viral RNA genome includes RNA sequence-dependent DNA ligation and tandem isothermal gene amplification methods, such as strand displacement amplification (SDA) and rolling circle amplification (RCA) generating G-quadruplex (GQ). In the presence of SNM in the viral RNA, ligation of both ends of the probe DNAs occurs between 5'-phosphorylated hairpin DNA and linear probe DNA that can discriminate a single base mismatch. The ligated DNAs were then extended to generate long-stem hairpin DNAs that are subjected to the first isothermal gene amplification (SDA). SDA produces multitudes of short ssDNA from the long-stem hairpin DNAs, which then serve as primers by annealing to circular padlock DNA for the second isothermal gene amplification (RCA). RCA produces a long stretch of ssDNA containing GQ structures. Thioflavin T (ThT) is then intercalated into GQ and emits green fluorescence, which allows the fluorometric identification of SARS-CoV-2 variants. This fluorometric analysis sensitively distinguished SNM in the L452R variant of SARS-CoV-2 RNA as low as 10 pM within 2 h. Hence, this fluorometric detection method using ligation-assisted tandem isothermal gene amplification can be applied for the diagnosis of SARS-CoV-2 SNM variants with high accuracy and sensitivity, without the need for cumbersome whole-genome DNA sequencing.
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Affiliation(s)
- Kangwuk Kyung
- Department of Bioscience and Biotechnology, Konkuk University, Seoul 05029, Republic of Korea
| | - Jamin Ku
- Department of Bioscience and Biotechnology, Konkuk University, Seoul 05029, Republic of Korea
| | - Eunbin Cho
- Department of Bioscience and Biotechnology, Konkuk University, Seoul 05029, Republic of Korea
| | - Junhyung Ryu
- Department of Bioscience and Biotechnology, Konkuk University, Seoul 05029, Republic of Korea
| | - Jin Woo
- Department of Emergency Medicine, Kyung Hee University College of Medicine, Kyung Hee University Hospital at Gangdong, Seoul 05278, Republic of Korea
| | - Woong Jung
- Department of Emergency Medicine, Kyung Hee University College of Medicine, Kyung Hee University Hospital at Gangdong, Seoul 05278, Republic of Korea
| | - Dong-Eun Kim
- Department of Bioscience and Biotechnology, Konkuk University, Seoul 05029, Republic of Korea
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22
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Reynolds J, Loeffler RS, Leigh PJ, Lopez HA, Yoon JY. Recent Uses of Paper Microfluidics in Isothermal Nucleic Acid Amplification Tests. BIOSENSORS 2023; 13:885. [PMID: 37754119 PMCID: PMC10526735 DOI: 10.3390/bios13090885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 09/08/2023] [Accepted: 09/11/2023] [Indexed: 09/28/2023]
Abstract
Isothermal nucleic acid amplification tests have recently gained popularity over polymerase chain reaction (PCR), as they only require a constant temperature and significantly simplify nucleic acid amplification. Recently, numerous attempts have been made to incorporate paper microfluidics into these isothermal amplification tests. Paper microfluidics (including lateral flow strips) have been used to extract nucleic acids, amplify the target gene, and detect amplified products, all toward automating the process. We investigated the literature from 2020 to the present, i.e., since the onset of the COVID-19 pandemic, during which a significant surge in isothermal amplification tests has been observed. Paper microfluidic detection has been used extensively for recombinase polymerase amplification (RPA) and its related methods, along with loop-mediated isothermal amplification (LAMP) and rolling circle amplification (RCA). Detection was conducted primarily with colorimetric and fluorometric methods, although a few publications demonstrated flow distance- and surface-enhanced Raman spectroscopic (SERS)-based detection. A good number of publications could be found that demonstrated both amplification and detection on paper microfluidic platforms. A small number of publications could be found that showed extraction or all three procedures (i.e., fully integrated systems) on paper microfluidic platforms, necessitating the need for future work.
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Affiliation(s)
- Jocelyn Reynolds
- Department of Biomedical Engineering, The University of Arizona, Tucson, AZ 85721, USA; (J.R.); (R.S.L.); (P.J.L.)
| | - Reid S. Loeffler
- Department of Biomedical Engineering, The University of Arizona, Tucson, AZ 85721, USA; (J.R.); (R.S.L.); (P.J.L.)
| | - Preston J. Leigh
- Department of Biomedical Engineering, The University of Arizona, Tucson, AZ 85721, USA; (J.R.); (R.S.L.); (P.J.L.)
| | - Hannah A. Lopez
- Department of Neuroscience, The University of Arizona, Tucson, AZ 85721, USA;
| | - Jeong-Yeol Yoon
- Department of Biomedical Engineering, The University of Arizona, Tucson, AZ 85721, USA; (J.R.); (R.S.L.); (P.J.L.)
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23
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Oscorbin I, Filipenko M. Bst polymerase - a humble relative of Taq polymerase. Comput Struct Biotechnol J 2023; 21:4519-4535. [PMID: 37767105 PMCID: PMC10520511 DOI: 10.1016/j.csbj.2023.09.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Revised: 08/31/2023] [Accepted: 09/10/2023] [Indexed: 09/29/2023] Open
Abstract
DNA polymerases are a superfamily of enzymes synthesizing DNA using DNA as a template. They are essential for nucleic acid metabolism and for DNA replication and repair. Modern biotechnology and molecular diagnostics rely heavily on DNA polymerases in analyzing nucleic acids. Among a variety of discovered DNA polymerases, Bst polymerase, a large fragment of DNA polymerase I from Geobacillus stearothermophilus, is one of the most commonly used but is not as well studied as Taq polymerase. The ability of Bst polymerase to displace an upstream DNA strand during synthesis, coupled with its moderate thermal stability, has provided the basis for several isothermal DNA amplification methods, including LAMP, WGA, RCA, and many others. Bst polymerase is one of the key components defining the robustness and analytical characteristics of diagnostic test systems based on isothermal amplification. Here, we present an overview of the biochemical and structural features of Bst polymerase and provide information on its mutated analogs.
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Affiliation(s)
- Igor Oscorbin
- Laboratory of Pharmacogenomics, Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences (ICBFM SB RAS), 8 Lavrentiev Avenue, Novosibirsk 630090, Russia
| | - Maxim Filipenko
- Laboratory of Pharmacogenomics, Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences (ICBFM SB RAS), 8 Lavrentiev Avenue, Novosibirsk 630090, Russia
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24
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Qiao J, Zhao Z, Li Y, Lu M, Man S, Ye S, Zhang Q, Ma L. Recent advances of food safety detection by nucleic acid isothermal amplification integrated with CRISPR/Cas. Crit Rev Food Sci Nutr 2023:1-22. [PMID: 37691410 DOI: 10.1080/10408398.2023.2246558] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/12/2023]
Abstract
Food safety problems have become one of the most important public health issues worldwide. Therefore, the development of rapid, effective and robust detection is of great importance. Amongst a range of methods, nucleic acid isothermal amplification (NAIA) plays a great role in food safety detection. However, the widespread application remains limited due to a few shortcomings. CRISPR/Cas system has emerged as a powerful tool in nucleic acid detection, which could be readily integrated with NAIA to improve the detection sensitivity, specificity, adaptability versatility and dependability. However, currently there was a lack of a comprehensive summary regarding the integration of NAIA and CRISPR/Cas in the field of food safety detection. In this review, the recent advances in food safety detection based on CRISPR/Cas-integrated NAIA were comprehensively reviewed. To begin with, the development of NAIA was summarized. Then, the types and working principles of CRISPR/Cas were introduced. The applications of the integration of NAIA and CRISPR/Cas for food safety were mainly introduced and objectively discussed. Lastly, current challenges and future opportunities were proposed. In summary, this technology is expected to become an important approach for food safety detection, leading to a safer and more reliable food industry.
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Affiliation(s)
- Jiali Qiao
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Microbiology, Ministry of Education, Tianjin Key Laboratory of Industry Microbiology, National and Local United Engineering Lab of Metabolic Control Fermentation Technology, China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, College of Biotechnology, Tianjin University of Science & Technology, Tianjin, China
| | - Zhiying Zhao
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Microbiology, Ministry of Education, Tianjin Key Laboratory of Industry Microbiology, National and Local United Engineering Lab of Metabolic Control Fermentation Technology, China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, College of Biotechnology, Tianjin University of Science & Technology, Tianjin, China
| | - Yaru Li
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Microbiology, Ministry of Education, Tianjin Key Laboratory of Industry Microbiology, National and Local United Engineering Lab of Metabolic Control Fermentation Technology, China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, College of Biotechnology, Tianjin University of Science & Technology, Tianjin, China
| | - Minghui Lu
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Microbiology, Ministry of Education, Tianjin Key Laboratory of Industry Microbiology, National and Local United Engineering Lab of Metabolic Control Fermentation Technology, China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, College of Biotechnology, Tianjin University of Science & Technology, Tianjin, China
| | - Shuli Man
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Microbiology, Ministry of Education, Tianjin Key Laboratory of Industry Microbiology, National and Local United Engineering Lab of Metabolic Control Fermentation Technology, China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, College of Biotechnology, Tianjin University of Science & Technology, Tianjin, China
| | - Shengying Ye
- Pharmacy Department, The 983th Hospital of the Joint Logistics Support Force of the, Chinese People's Liberation Army, Tianjin, China
| | - Qiang Zhang
- Branch of Tianjin Third Central Hospital, Tianjin, China
| | - Long Ma
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Microbiology, Ministry of Education, Tianjin Key Laboratory of Industry Microbiology, National and Local United Engineering Lab of Metabolic Control Fermentation Technology, China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, College of Biotechnology, Tianjin University of Science & Technology, Tianjin, China
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25
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Huang S, Dai R, Zhang Z, Zhang H, Zhang M, Li Z, Zhao K, Xiong W, Cheng S, Wang B, Wan Y. CRISPR/Cas-Based Techniques for Live-Cell Imaging and Bioanalysis. Int J Mol Sci 2023; 24:13447. [PMID: 37686249 PMCID: PMC10487896 DOI: 10.3390/ijms241713447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 08/09/2023] [Accepted: 08/24/2023] [Indexed: 09/10/2023] Open
Abstract
CRISPR/Cas systems have found widespread applications in gene editing due to their high accuracy, high programmability, ease of use, and affordability. Benefiting from the cleavage properties (trans- or cis-) of Cas enzymes, the scope of CRISPR/Cas systems has expanded beyond gene editing and they have been utilized in various fields, particularly in live-cell imaging and bioanalysis. In this review, we summarize some fundamental working mechanisms and concepts of the CRISPR/Cas systems, describe the recent advances and design principles of CRISPR/Cas mediated techniques employed in live-cell imaging and bioanalysis, highlight the main applications in the imaging and biosensing of a wide range of molecular targets, and discuss the challenges and prospects of CRISPR/Cas systems in live-cell imaging and biosensing. By illustrating the imaging and bio-sensing processes, we hope this review will guide the best use of the CRISPR/Cas in imaging and quantifying biological and clinical elements and inspire new ideas for better tool design in live-cell imaging and bioanalysis.
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Affiliation(s)
- Shuo Huang
- College of Life Sciences, Hainan University, Haikou 570228, China; (S.H.); (Z.Z.); (H.Z.); (M.Z.); (Z.L.); (K.Z.); (W.X.)
| | - Rui Dai
- Institute of Oceanography, Hainan University, Haikou 570228, China;
| | - Zhiqi Zhang
- College of Life Sciences, Hainan University, Haikou 570228, China; (S.H.); (Z.Z.); (H.Z.); (M.Z.); (Z.L.); (K.Z.); (W.X.)
| | - Han Zhang
- College of Life Sciences, Hainan University, Haikou 570228, China; (S.H.); (Z.Z.); (H.Z.); (M.Z.); (Z.L.); (K.Z.); (W.X.)
| | - Meng Zhang
- College of Life Sciences, Hainan University, Haikou 570228, China; (S.H.); (Z.Z.); (H.Z.); (M.Z.); (Z.L.); (K.Z.); (W.X.)
| | - Zhangjun Li
- College of Life Sciences, Hainan University, Haikou 570228, China; (S.H.); (Z.Z.); (H.Z.); (M.Z.); (Z.L.); (K.Z.); (W.X.)
| | - Kangrui Zhao
- College of Life Sciences, Hainan University, Haikou 570228, China; (S.H.); (Z.Z.); (H.Z.); (M.Z.); (Z.L.); (K.Z.); (W.X.)
| | - Wenjun Xiong
- College of Life Sciences, Hainan University, Haikou 570228, China; (S.H.); (Z.Z.); (H.Z.); (M.Z.); (Z.L.); (K.Z.); (W.X.)
| | - Siyu Cheng
- College of Art and Design, Hainan University, Haikou 570228, China;
| | - Buhua Wang
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou 570228, China
| | - Yi Wan
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou 570228, China
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26
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Naz S, Liu P, Farooq U, Ma H. Insight into de-regulation of amino acid feedback inhibition: a focus on structure analysis method. Microb Cell Fact 2023; 22:161. [PMID: 37612753 PMCID: PMC10464499 DOI: 10.1186/s12934-023-02178-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Accepted: 08/13/2023] [Indexed: 08/25/2023] Open
Abstract
Regulation of amino acid's biosynthetic pathway is of significant importance to maintain homeostasis and cell functions. Amino acids regulate their biosynthetic pathway by end-product feedback inhibition of enzymes catalyzing committed steps of a pathway. Discovery of new feedback resistant enzyme variants to enhance industrial production of amino acids is a key objective in industrial biotechnology. Deregulation of feedback inhibition has been achieved for various enzymes using in vitro and in silico mutagenesis techniques. As enzyme's function, its substrate binding capacity, catalysis activity, regulation and stability are dependent on its structural characteristics, here, we provide detailed structural analysis of all feedback sensitive enzyme targets in amino acid biosynthetic pathways. Current review summarizes information regarding structural characteristics of various enzyme targets and effect of mutations on their structures and functions especially in terms of deregulation of feedback inhibition. Furthermore, applicability of various experimental as well as computational mutagenesis techniques to accomplish feedback resistance has also been discussed in detail to have an insight into various aspects of research work reported in this particular field of study.
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Affiliation(s)
- Sadia Naz
- Biodesign Center, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China
| | - Pi Liu
- Biodesign Center, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China
| | - Umar Farooq
- Department of Chemistry, COMSATS University Islamabad, Abbottabad Campus, Islamabad, 22060, Pakistan
| | - Hongwu Ma
- Biodesign Center, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China.
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27
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Alhamid G, Tombuloglu H, Al-Suhaimi E. Development of loop-mediated isothermal amplification (LAMP) assays using five primers reduces the false-positive rate in COVID-19 diagnosis. Sci Rep 2023; 13:5066. [PMID: 36977756 PMCID: PMC10044074 DOI: 10.1038/s41598-023-31760-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Accepted: 03/16/2023] [Indexed: 03/30/2023] Open
Abstract
The reverse-transcription loop-mediated isothermal amplification (RT-LAMP) is a cheaper and faster testing alternative for detecting SARS-CoV-2. However, a high false-positive rate due to misamplification is one of the major limitations. To overcome misamplifications, we developed colorimetric and fluorometric RT-LAMP assays using five LAMP primers, instead of six. The gold-standard RT-PCR technique verified the assays' performance. Compared to other primer sets with six primers (N, S, and RdRp), the E-ID1 primer set, including five primers, performed superbly on both colorimetric and fluorometric assays. The sensitivity of colorimetric and fluorometric assays was 89.5% and 92.2%, respectively, with a limit of detection of 20 copies/µL. The colorimetric RT-LAMP had a specificity of 97.2% and an accuracy of 94.5%, while the fluorometric RT-LAMP obtained 99% and 96.7%, respectively. No misamplification was evident even after 120 min, which is crucial for the success of this technique. These findings are important to support the use of RT-LAMP in the healthcare systems in fighting COVID-19.
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Affiliation(s)
- Galyah Alhamid
- Master Program of Biotechnology, Institute for Research and Medical Consultations, Imam Abdulrahman Bin Faisal University, Dammam, 31441, Saudi Arabia
- Department of Genetics Research, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, Dammam, 31441, Saudi Arabia
| | - Huseyin Tombuloglu
- Department of Genetics Research, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, Dammam, 31441, Saudi Arabia.
| | - Ebtesam Al-Suhaimi
- Biology Department, College of Science and Institute of Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, Dammam, 31441, Saudi Arabia
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28
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Pandey R, Lu Y, McConnell EM, Osman E, Scott A, Gu J, Hoare T, Soleymani L, Li Y. Electrochemical DNAzyme-based biosensors for disease diagnosis. Biosens Bioelectron 2023; 224:114983. [PMID: 36640547 DOI: 10.1016/j.bios.2022.114983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2022] [Revised: 11/28/2022] [Accepted: 11/30/2022] [Indexed: 01/01/2023]
Abstract
DNAzyme-based electrochemical biosensors provide exceptional analytical sensitivity and high target recognition specificity for disease diagnosis. This review provides a critical perspective on the fundamental and applied impact of incorporating DNAzymes in the field of electrochemical biosensing. Specifically, we highlight recent advances in creating DNAzyme-based electrochemical biosensors for diagnosing infectious diseases, cancer and regulatory diseases. We also develop an understanding of challenges around translating the research in the field of DNAzyme-based electrochemical biosensors from labs to clinics, followed by a discussion on different strategies that can be applied to enhance the performance of the currently existing technologies to create truly point-of-care electrochemical DNAzyme biosensors.
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Affiliation(s)
- Richa Pandey
- Department of Engineering Physics, McMaster University, Hamilton, Ontario, L8S 4K1, Canada; Department of Biomedical Engineering, University of Calgary, Calgary, Alberta, T2N 1N4, Canada.
| | - Yang Lu
- School of Biomedical Engineering, McMaster University, Hamilton, Ontario, L8S 4K1, Canada
| | - Erin M McConnell
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Ontario, L8S 4K1, Canada
| | - Enas Osman
- School of Biomedical Engineering, McMaster University, Hamilton, Ontario, L8S 4K1, Canada
| | - Alexander Scott
- School of Biomedical Engineering, McMaster University, Hamilton, Ontario, L8S 4K1, Canada
| | - Jimmy Gu
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Ontario, L8S 4K1, Canada
| | - Todd Hoare
- School of Biomedical Engineering, McMaster University, Hamilton, Ontario, L8S 4K1, Canada; Department of Chemical Engineering, McMaster University, Hamilton, Ontario, L8S 4K1, Canada
| | - Leyla Soleymani
- Department of Engineering Physics, McMaster University, Hamilton, Ontario, L8S 4K1, Canada; School of Biomedical Engineering, McMaster University, Hamilton, Ontario, L8S 4K1, Canada; Michael G. DeGroot Institute for Infectious Disease Research, McMaster University, Hamilton, Ontario, L8S 4K1, Canada.
| | - Yingfu Li
- School of Biomedical Engineering, McMaster University, Hamilton, Ontario, L8S 4K1, Canada; Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Ontario, L8S 4K1, Canada; Michael G. DeGroot Institute for Infectious Disease Research, McMaster University, Hamilton, Ontario, L8S 4K1, Canada.
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29
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Nam D, Kim S, Kim JH, Lee S, Kim D, Son J, Kim D, Cha BS, Lee ES, Park KS. Low-Temperature Loop-Mediated Isothermal Amplification Operating at Physiological Temperature. BIOSENSORS 2023; 13:367. [PMID: 36979579 PMCID: PMC10046060 DOI: 10.3390/bios13030367] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 03/02/2023] [Accepted: 03/06/2023] [Indexed: 06/16/2023]
Abstract
Loop-mediated isothermal amplification (LAMP) is one of the most widely used isothermal amplification technologies in molecular diagnostics. However, LAMP operates at a high temperature of 65 °C; thus, operating LAMP at a lower temperature is desirable to maximize its usefulness for on-site diagnosis. In this study, we propose a new version of LAMP, termed low-temperature LAMP, which operates at the physiological temperature of 37 °C. Low-temperature LAMP differs from conventional LAMP operating at 65 °C in terms of the concentrations of MgSO4 and deoxyribonucleoside triphosphates (dNTPs), as well as the lengths of DNA probes, which are crucial for the execution of low-temperature LAMP. Under the optimal conditions, the amplification efficiency of low-temperature LAMP is comparable to that of conventional LAMP. In addition, the ligation reaction at 37 °C, which is necessary to detect actual target nucleic acids, is combined without altering the temperature, enabling the identification of miR-21, a cancer-promoting oncogenic miRNA, with high sensitivity and selectivity. The method described in this paper does not require expensive DNA modifications or special additives and would facilitate the widespread application of LAMP in facility-limited or point-of-care settings, paving the way to improvements in other isothermal-amplification-based techniques.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Ki Soo Park
- Correspondence: ; Tel.: +82-2-450-3742; Fax: +82-2-450-3742
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30
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Bhuiyan A, Asakawa S. Synthesis and cloning of long repeat sequences using single-stranded circular DNA. Front Bioeng Biotechnol 2023; 11:1115159. [PMID: 36970617 PMCID: PMC10033958 DOI: 10.3389/fbioe.2023.1115159] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Accepted: 02/27/2023] [Indexed: 03/11/2023] Open
Abstract
Non-coding repeat expansion causes several neurodegenerative diseases, such as fragile X syndrome, amyotrophic lateral sclerosis/frontotemporal dementia, and spinocerebellar ataxia (SCA31). Such repetitive sequences must be investigated to understand disease mechanisms and prevent them, using novel approaches. However, synthesizing repeat sequences from synthetic oligonucleotides is challenging as they are unstable, lack unique sequences, and exhibit propensity to make secondary structures. Synthesizing long repeat sequence using polymerase chain reaction is often difficult due to lack of unique sequence. Here, we employed a rolling circle amplification technique to obtain seamless long repeat sequences using tiny synthetic single-stranded circular DNA as template. We obtained 2.5–3 kbp uninterrupted TGGAA repeats, which is observed in SCA31, and confirmed it using restriction digestion, Sanger and Nanopore sequencing. This cell-free, in vitro cloning method may be applicable for other repeat expansion diseases and be used to produce animal and cell culture models to study repeat expansion diseases in vivo and in vitro.
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31
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Shang J, Yu S, Li R, He Y, Wang Y, Wang F. Bioorthogonal Disassembly of Hierarchical DNAzyme Nanogel for High-Performance Intracellular microRNA Imaging. NANO LETTERS 2023; 23:1386-1394. [PMID: 36719793 DOI: 10.1021/acs.nanolett.2c04658] [Citation(s) in RCA: 22] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Rolling circle amplification (RCA) enables the facile construction of compact and versatile DNA nanoassemblies which are yet rarely explored for intracellular analysis. This is might be ascribed to the uncontrollable and inefficient probe integration/activation. Herein, by encoding with tandem allosteric deoxyribozyme (DNA-cleaving DNAzyme), a multifunctional RCA nanogel was established for realizing the efficient intracellular microRNA imaging via the successive activation of the RCA-disassembly module and signal amplification module. The endogenous microRNA stimulates the precise degradation of DNA nanocarriers, thus leading to the efficient exposure of RCA-entrapped DNAzyme biocatalyst for an amplified readout signal. Our bioorthogonal DNAzyme disassembly strategy achieved the robust analysis of intracellular biomolecules, thus showing more prospects in clinical diagnosis.
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Affiliation(s)
- Jinhua Shang
- Department of Gastrointestinal Surgery, Zhongnan Hospital of Wuhan University, Wuhan 430072, P. R. China
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P. R. China
| | - Shanshan Yu
- Department of Gastrointestinal Surgery, Zhongnan Hospital of Wuhan University, Wuhan 430072, P. R. China
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P. R. China
| | - Ruomeng Li
- Department of Gastrointestinal Surgery, Zhongnan Hospital of Wuhan University, Wuhan 430072, P. R. China
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P. R. China
| | - Yuqiu He
- Department of Gastrointestinal Surgery, Zhongnan Hospital of Wuhan University, Wuhan 430072, P. R. China
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P. R. China
| | - Yushi Wang
- Department of Gastrointestinal Surgery, Zhongnan Hospital of Wuhan University, Wuhan 430072, P. R. China
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P. R. China
| | - Fuan Wang
- Department of Gastrointestinal Surgery, Zhongnan Hospital of Wuhan University, Wuhan 430072, P. R. China
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P. R. China
- Research Institute of Shenzhen, Wuhan University, Shenzhen 518057, P. R. China
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32
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Cui H, Guan J, Lu H, Liu J, Tu F, Zhang C, Su K, Guo Z, Zhao K. Rapid Onsite Visual Detection of Orf Virus Using a Recombinase-Aided Amplification Assay. Life (Basel) 2023; 13:life13020494. [PMID: 36836851 PMCID: PMC9968157 DOI: 10.3390/life13020494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 02/06/2023] [Accepted: 02/07/2023] [Indexed: 02/12/2023] Open
Abstract
Orf is an important zoonotic disease caused by the Orf virus (ORFV) which can cause contagious pustular dermatitis in goats and sheep. Orf is widespread in most sheep-raising countries in the world, causing huge economic losses. Although diagnostic methods for ORFV infection already exist, it is still necessary to develop a time-saving, labor-saving, specific, low-cost and visual diagnostic method for rapid detection of ORFV in the field and application in grassroots laboratories. This study establishes a DNA extraction-free, real-time, visual recombinase-aided amplification (RAA) method for the rapid detection of ORFV. This method is specific to ORFV and does not cross-react with other common DNA viruses. The detection limits of the real-time RAA and visual judgment of the RAA assay at 95% probability were 13 and 21 copies per reaction for ORFV, respectively. Compared with qPCR, the sensitivity and specificity of the real-time RAA assay were 100%, and those of the visual RAA assay were 92.31% and 100.0%, respectively. The DNA extraction-free visual detection method of RAA established in this study can meet the needs of rapid onsite detection and grassroots laboratories and has important reference value and significance for the early diagnosis of diseased animals.
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Affiliation(s)
- Huan Cui
- College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Jiyu Guan
- College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Huijun Lu
- Key Laboratory of Zoonosis, Ministry of Education, Institute of Zoonosis, Jilin University, Changchun 130062, China
| | - Jun Liu
- Changchun Veterinary Research Institute, Chinese Academy of Agriculture Sciences, Changchun 130122, China
| | - Fei Tu
- Changchun Veterinary Research Institute, Chinese Academy of Agriculture Sciences, Changchun 130122, China
| | - Cheng Zhang
- College of Veterinary Medicine, Hebei Agricultural University, 2596 Lucky South Street, Baoding 071000, China
| | - Kai Su
- College of Veterinary Medicine, Hebei Agricultural University, 2596 Lucky South Street, Baoding 071000, China
| | - Zhendong Guo
- Changchun Veterinary Research Institute, Chinese Academy of Agriculture Sciences, Changchun 130122, China
- Correspondence: (Z.G.); (K.Z.)
| | - Kui Zhao
- College of Veterinary Medicine, Jilin University, Changchun 130062, China
- Correspondence: (Z.G.); (K.Z.)
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Sánchez Martín D, Oropesa-Nuñez R, Zardán Gómez de la Torre T. Rolling Circle Amplification on a Bead: Improving the Detection Time for a Magnetic Bioassay. ACS OMEGA 2023; 8:4391-4397. [PMID: 36743032 PMCID: PMC9893745 DOI: 10.1021/acsomega.2c07992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 01/10/2023] [Indexed: 06/18/2023]
Abstract
Detection of pathogens has become increasingly important, especially in the face of outbreaks and epidemics all over the world. Nucleic acid detection techniques provide a solid base to detect and identify pathogens. In recent years, magnetic sensors and magnetic labels have become of more interest due to their simplicity of use, low cost, and versatility. In this work, we have used the isothermal DNA amplification technique of rolling circle amplification (RCA) in combination with oligo-functionalized magnetic nanoparticles. Detection of RCA products takes place through specific binding between magnetic nanoparticles and RCA products. Upon binding, the relaxation frequency of the nanoparticle changes. This change was measured using an AC susceptometer. We showcase that the RCA time can be reduced for a quicker assay when performing the RCA on the surface of micrometer-sized beads, which consequently increases the hydrodynamic volume of the RCA products. This, in turn, increases the Brownian relaxation frequency shift of the nanoparticles upon binding. We performed optimization work to determine the ideal quantity of micrometer-sized particles, oligo-functionalized nanoparticles, and the amplification time of the RCA. We show that the detection of 0.75 fmol of preamplification synthetic target is possible with only 20 min of amplification time. Finally, we showcase the high specificity of the assay, as the functionalized nanoparticles are unable to bind to amplified DNA that does not match their labels. Overall, this paves the way for a simple bioassay that can be used without expensive laboratory equipment for detection of pathogens in outbreak settings and clinics around the world.
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Affiliation(s)
- Darío Sánchez Martín
- Department
of Material Sciences and Engineering, Division of Nanotechnology and
Functional Materials, Ångström Laboratory, Uppsala University, Box 534, SE-751 21 Uppsala, Sweden
| | - Reinier Oropesa-Nuñez
- Department
of Material Sciences and Engineering, Division of Solid-State Physics,
Ångström Laboratory, Uppsala
University, Box 534, SE-751
21 Uppsala, Sweden
| | - Teresa Zardán Gómez de la Torre
- Department
of Material Sciences and Engineering, Division of Nanotechnology and
Functional Materials, Ångström Laboratory, Uppsala University, Box 534, SE-751 21 Uppsala, Sweden
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34
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Sellés Vidal L, Isalan M, Heap JT, Ledesma-Amaro R. A primer to directed evolution: current methodologies and future directions. RSC Chem Biol 2023; 4:271-291. [PMID: 37034405 PMCID: PMC10074555 DOI: 10.1039/d2cb00231k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Accepted: 01/18/2023] [Indexed: 01/30/2023] Open
Abstract
This review summarises the methods available for directed evolution, including mutagenesis and variant selection techniques. The advantages and disadvantages of each technique are presented, and future challenges in the field are discussed.
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Affiliation(s)
- Lara Sellés Vidal
- Imperial College Centre for Synthetic Biology, Imperial College London, London, SW7 2AZ, UK
- Department of Bioengineering, Imperial College London, London, SW7 2AZ, UK
| | - Mark Isalan
- Imperial College Centre for Synthetic Biology, Imperial College London, London, SW7 2AZ, UK
- Department of Life Sciences, Imperial College London, London, SW7 2AZ, UK
| | - John T. Heap
- Imperial College Centre for Synthetic Biology, Imperial College London, London, SW7 2AZ, UK
- Department of Life Sciences, Imperial College London, London, SW7 2AZ, UK
- School of Life Sciences, The University of Nottingham, University Park, Nottingham, NG7 2RD, UK
| | - Rodrigo Ledesma-Amaro
- Imperial College Centre for Synthetic Biology, Imperial College London, London, SW7 2AZ, UK
- Department of Bioengineering, Imperial College London, London, SW7 2AZ, UK
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35
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Liu J, Xie G, Lv S, Xiong Q, Xu H. Recent applications of rolling circle amplification in biosensors and DNA nanotechnology. Trends Analyt Chem 2023. [DOI: 10.1016/j.trac.2023.116953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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36
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Development and evaluation of a rapid, specific, and sensitive loop-mediated isothermal amplification assay to detect Tenacibaculum sp. strain pbs-1 associated with black-spot shell disease in Akoya pearl oysters. Arch Microbiol 2022; 205:43. [PMID: 36575332 DOI: 10.1007/s00203-022-03384-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 12/13/2022] [Accepted: 12/20/2022] [Indexed: 12/28/2022]
Abstract
Black-spot shell disease decreases pearl quality and threatens pearl oyster survival. Establishment of a rapid, specific, and sensitive assay to detect Tenacibaculum sp. strain Pbs-1 associated with black-spot shell disease is of commercial importance. We developed a rapid, specific, and highly sensitive loop-mediated isothermal amplification (LAMP) assay to detect Tenacibaculum sp. Pbs-1 in Akoya pearl oysters Pinctada fucata. A set of five specific primers (two inner, two outer, and a loop) were designed based on the 16S-23S internal spacer region of strain Pbs-1. The optimum reaction temperature was 63 °C, and concentrations of the inner and loop primers were 1.4 and 1.0 µM, respectively. The LAMP product can be detected using agarose gel electrophoresis, and the color change in the reaction tube can be detected visually (by the naked eye) following the addition of malachite green. Our assay proved to be specific for strain Pbs-1, with no cross-reactivity with five other species of Tenacibaculum. The detection limit of the LAMP assay at 35 min is 50 pg, and at 60 min it is 5 fg. We evaluated the LAMP assay using diseased and healthy pearl oysters. The results demonstrate the suitability and simplicity of this test for rapid field diagnosis of strain Pbs-1.
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37
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Li Y, Kim H, Ju Y, Park Y, Kang T, Yong D, Park HG. Ultrasensitive Isothermal Detection of SARS-CoV-2 Based on Self-Priming Hairpin-Utilized Amplification of the G-Rich Sequence. Anal Chem 2022; 94:17448-17455. [PMID: 36480911 PMCID: PMC9743493 DOI: 10.1021/acs.analchem.2c03442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 11/28/2022] [Indexed: 12/13/2022]
Abstract
The outbreak of the novel coronavirus disease 2019 (COVID-19) pandemic induced by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has caused millions of fatalities all over the world. Unquestionably, the effective and timely testing for infected individuals is the most imperative for the prevention of the ongoing pandemic. Herein, a new method was established for detecting SARS-CoV-2 based on the self-priming hairpin-utilized isothermal amplification of the G-rich sequence (SHIAG). In this strategy, the target RNA binding to the hairpin probe (HP) was uniquely devised to lead to the self-priming-mediated extension followed by the continuously repeated nicking and extension reactions, consequently generating abundant G-rich sequences from the intended reaction capable of producing fluorescence signals upon specifically interacting with thioflavin T (ThT). Based on the unique isothermal design concept, we successfully identified SARS-CoV-2 genomic RNA (gRNA) as low as 0.19 fM with excellent selectivity by applying only a single HP and further verified its practical diagnostic capability by reliably testing a total of 100 clinical specimens for COVID-19 with 100% clinical sensitivity and specificity. This study would provide notable insights into the design and evolution of new isothermal strategies for the sensitive and facile detection of SARS-CoV-2 under resource constraints.
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Affiliation(s)
- Yan Li
- Department of Chemical and Biomolecular Engineering
(BK21 Four), Korea Advanced Institute of Science and Technology
(KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon34141, Republic of
Korea
| | - Hansol Kim
- Department of Chemical and Biomolecular Engineering
(BK21 Four), Korea Advanced Institute of Science and Technology
(KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon34141, Republic of
Korea
| | - Yong Ju
- Department of Chemical and Biomolecular Engineering
(BK21 Four), Korea Advanced Institute of Science and Technology
(KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon34141, Republic of
Korea
| | - Yeonkyung Park
- Department of Chemical and Biomolecular Engineering
(BK21 Four), Korea Advanced Institute of Science and Technology
(KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon34141, Republic of
Korea
| | - Taejoon Kang
- Bionanotechnology Research Center, Korea
Research Institute of Bioscience and Biotechnology (KRIBB), Yuseong-gu,
Daejeon34141, Republic of Korea
- School of Pharmacy, Sungkyunkwan
University, 2066 Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do16419,
Republic of Korea
| | - Dongeun Yong
- Department of Laboratory Medicine and
Research Institute of Bacterial Resistance, Yonsei University College of
Medicine, Seoul03722, Republic of Korea
| | - Hyun Gyu Park
- Department of Chemical and Biomolecular Engineering
(BK21 Four), Korea Advanced Institute of Science and Technology
(KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon34141, Republic of
Korea
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38
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Zhang B, Li M, Wei Y, Wang J, Wang Y, Shi P, Tang H, Song Z. Detection of target DNA with a visual CRISPR-associated hyperbranched rolling circle amplification technique. Anal Biochem 2022; 658:114940. [DOI: 10.1016/j.ab.2022.114940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 09/29/2022] [Accepted: 09/29/2022] [Indexed: 11/01/2022]
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39
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Chakraborty J, Chaudhary AA, Khan SUD, Rudayni HA, Rahaman SM, Sarkar H. CRISPR/Cas-Based Biosensor As a New Age Detection Method for Pathogenic Bacteria. ACS OMEGA 2022; 7:39562-39573. [PMID: 36385843 PMCID: PMC9648122 DOI: 10.1021/acsomega.2c04513] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Accepted: 10/03/2022] [Indexed: 05/25/2023]
Abstract
Methods enabling rapid and on-site detection of pathogenic bacteria are a prerequisite for public health assurance, medical diagnostics, ensuring food safety and security, and research. Many current bacteria detection technologies are inconvenient and time-consuming, making them unsuitable for field detection. New technology based on the CRISPR/Cas system has the potential to fill the existing gaps in detection. The clustered regularly interspaced short palindromic repeats (CRISPR) system is a part of the bacterial adaptive immune system to protect them from intruding bacteriophages. The immunological memory is saved by the CRISPR array of bacteria in the form of short DNA sequences (spacers) from invading viruses and incorporated with the CRISPR DNA repeats. Cas proteins are responsible for triggering and initiating the adaptive immune function of CRISPR/Cas systems. In advanced biological research, the CRISPR/Cas system has emerged as a significant tool from genome editing to pathogen detection. By considering its sensitivity and specificity, this system can become one of the leading detection methods for targeting DNA/RNA. This technique is well applied in virus detection like Dengue, ZIKA, SARS-CoV-2, etc., but for bacterial detection, this CRISPR/Cas system is limited to only a few organisms to date. In this review, we have discussed the different techniques based on the CRISPR/Cas system that have been developed for the detection of various pathogenic bacteria like L. monocytogenes, M. tuberculosis, Methicillin-resistant S. aureus, Salmonella, E. coli, P. aeruginosa, and A. baumannii.
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Affiliation(s)
- Joydeep Chakraborty
- Department
of Microbiology, Raiganj University, Raiganj, West Bengal733134, India
| | - Anis Ahmad Chaudhary
- Department
of Biology, College of Science, Imam Mohammad
Ibn Saud Islamic University (IMSIU), Riyadh11623, Saudi
Arabia
| | - Salah-Ud-Din Khan
- Department
of Biochemistry, College of Medicine, Imam
Mohammad Ibn Saud Islamic University (IMSIU), Riyadh11623, Saudi
Arabia
| | - Hassan Ahmad Rudayni
- Department
of Biology, College of Science, Imam Mohammad
Ibn Saud Islamic University (IMSIU), Riyadh11623, Saudi
Arabia
| | | | - Hironmoy Sarkar
- Department
of Microbiology, Raiganj University, Raiganj, West Bengal733134, India
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40
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Liu W, Wu Q, Wang W, Xu X, Yang C, Song Y. Enhanced molecular recognition on Microfluidic affinity interfaces. Trends Analyt Chem 2022. [DOI: 10.1016/j.trac.2022.116827] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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41
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Liu J, Wu D, Chen J, Jia S, Chen J, Wu Y, Li G. CRISPR-Cas systems mediated biosensing and applications in food safety detection. Crit Rev Food Sci Nutr 2022; 64:2960-2985. [PMID: 36218189 DOI: 10.1080/10408398.2022.2128300] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Food safety, closely related to economic development of food industry and public health, has become a global concern and gained increasing attention worldwide. Effective detection technology is of great importance to guarantee food safety. Although several classical detection methods have been developed, they have some limitations in portability, selectivity, and sensitivity. The emerging CRISPR-Cas systems, uniquely integrating target recognition specificity, signal transduction, and efficient signal amplification abilities, possess superior specificity and sensitivity, showing huge potential to address aforementioned challenges and develop next-generation techniques for food safety detection. In this review, we focus on recent progress of CRISPR-Cas mediated biosensing and their applications in food safety monitoring. The properties and principles of commonly used CRISPR-Cas systems are highlighted. Notably, the frequently coupled nucleic acid amplification strategies to enhance their selectivity and sensitivity, especially isothermal amplification methods, as well as various signal output modes are also systematically summarized. Meanwhile, the application of CRISPR-Cas systems-based biosensors in food safety detection including foodborne virus, foodborne bacteria, food fraud, genetically modified organisms (GMOs), toxins, heavy metal ions, antibiotic residues, and pesticide residues is comprehensively described. Furthermore, the current challenges and future prospects in this field are tentatively discussed.
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Affiliation(s)
- Jianghua Liu
- School of Food and Biological Engineering, Shaanxi University of Science and Technology, Xi'an, China
| | - Di Wu
- Institute for Global Food Security, School of Biological Sciences, Queen's University Belfast, Belfast, UK
| | - Jiahui Chen
- School of Food and Biological Engineering, Shaanxi University of Science and Technology, Xi'an, China
| | - Shijie Jia
- School of Food and Biological Engineering, Shaanxi University of Science and Technology, Xi'an, China
| | - Jian Chen
- School of Food and Biological Engineering, Shaanxi University of Science and Technology, Xi'an, China
| | - Yongning Wu
- School of Food and Biological Engineering, Shaanxi University of Science and Technology, Xi'an, China
- NHC Key Laboratory of Food Safety Risk Assessment, China National Center for Food Safety Risk Assessment, Beijing, China
| | - Guoliang Li
- School of Food and Biological Engineering, Shaanxi University of Science and Technology, Xi'an, China
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42
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Li X, Zhang X, Shi X, Shi H, Wang Z, Peng C. Review in isothermal amplification technology in food microbiological detection. Food Sci Biotechnol 2022; 31:1501-1511. [PMID: 36119387 PMCID: PMC9469833 DOI: 10.1007/s10068-022-01160-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 08/16/2022] [Accepted: 08/21/2022] [Indexed: 11/04/2022] Open
Abstract
Food-borne diseases caused by microbial contamination have always been a matter of great concern to human beings. Hence, the research on these problems has never stopped. With the development of microorganism amplification technology, more and more detection methods have come into our vision. However, traditional detection technologies presents more or less drawbacks, such as complicated operation, low accuracy, low sensitivity, long-time detection, and so on. Therefore, more convenient, accurate, and sensitive measurement for the microorganism are needed. Isothermal amplification technology is one of the alternative approach containing the above mentioned advantages. This work mainly summarizes the principles of loop-mediated isothermal amplification (LAMP) and rolling circle amplification (RCA) which belong to isothermal amplification. Meanwhile, the application of LAMP and RCA in food microorganism detection is introduced.
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43
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Botella JR. Point-of-Care DNA Amplification for Disease Diagnosis and Management. ANNUAL REVIEW OF PHYTOPATHOLOGY 2022; 60:1-20. [PMID: 36027938 DOI: 10.1146/annurev-phyto-021621-115027] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Early detection of pests and pathogens is of paramount importance in reducing agricultural losses. One approach to early detection is point-of-care (POC) diagnostics, which can provide early warning and therefore allow fast deployment of preventive measures to slow down the establishment of crop diseases. Among the available diagnostic technologies, nucleic acid amplification-based diagnostics provide the highest sensitivity and specificity, and those technologies that forego the requirement for thermocycling show the most potential for use at POC. In this review, I discuss the progress, advantages, and disadvantages of the established and most promising POC amplification technologies. The success and usefulness of POC amplification are ultimately dependent on the availability of POC-friendly nucleic acid extraction methods and amplification readouts, which are also briefly discussed in the review.
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Affiliation(s)
- José R Botella
- Plant Genetic Engineering Laboratory, School of Agriculture and Food Sciences, University of Queensland, Brisbane, Australia;
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44
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Boonbanjong P, Treerattrakoon K, Waiwinya W, Pitikultham P, Japrung D. Isothermal Amplification Technology for Disease Diagnosis. BIOSENSORS 2022; 12:bios12090677. [PMID: 36140062 PMCID: PMC9496038 DOI: 10.3390/bios12090677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 08/16/2022] [Accepted: 08/19/2022] [Indexed: 11/16/2022]
Abstract
Isothermal amplification (IA) is a nucleic acid amplification technology (NAAT) that has contributed significantly to the healthcare system. The combination of NAAT with a suitable detection platform resulted in higher sensitivity, specificity, and rapid disease diagnosis. Traditional NAAT, such as polymerase chain reaction (PCR), is widely applied in the general healthcare system but is rarely accessed in resource-limited hospitals. Some IA methods provide a rapid, sensitive, specific, and simple method for disease diagnosis. However, not all IA techniques have been regularly used in clinical applications because different biomarkers and sample types affect either the enzyme in the IA system or sample preparation. This review focuses on the application of some IA techniques that have been applied in the medical field and have the potential for use at points of care.
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Affiliation(s)
- Poramin Boonbanjong
- National Nanotechnology Center, National Science and Technology Development Agency, Thailand Science Park, Pathumthani 12120, Thailand
- Program in Translational Medicine, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok 10400, Thailand
| | - Kiatnida Treerattrakoon
- National Nanotechnology Center, National Science and Technology Development Agency, Thailand Science Park, Pathumthani 12120, Thailand
- Department of Pure and Applied Chemistry, Technology and Innovation Centre, University of Strathclyde, Glasgow G1 1RD, UK
| | - Wassa Waiwinya
- Multidisciplinary Program of Medical Microbiology, Graduate School, Chulalongkorn University, Bangkok 10330, Thailand
| | - Piyawat Pitikultham
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China
- School of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Deanpen Japrung
- National Nanotechnology Center, National Science and Technology Development Agency, Thailand Science Park, Pathumthani 12120, Thailand
- Correspondence: ; Tel.: +66-2-117-6665
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45
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Wang S, Qin A, Chau LY, Fok EWT, Choy MY, Brackman CJ, Siu GKH, Huang CL, Yip SP, Lee TMH. Amine-Functionalized Quantum Dots as a Universal Fluorescent Nanoprobe for a One-Step Loop-Mediated Isothermal Amplification Assay with Single-Copy Sensitivity. ACS APPLIED MATERIALS & INTERFACES 2022; 14:35299-35308. [PMID: 35895859 DOI: 10.1021/acsami.2c02508] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Loop-mediated isothermal amplification (LAMP) has received considerable attention for decentralized (point-of-care and on-site) nucleic acid testing in view of its simple temperature control (60-65 °C) and short assay time (15-60 min). There remains a challenge in its wide adoption and acceptance due to the limitations of the existing amplification result reporter probes, e.g., photobleaching of organic fluorophore and reduced sensitivity of the pH-sensitive colorimetric dye. Herein, we demonstrate CdSeS/ZnS quantum dots (semiconductor fluorescent nanocrystals with superior photostability than organic fluorophore) with surface modification of cysteamine (amine-QDs) as a new reporter probe for LAMP that enabled single-copy sensitivity (limit of detection of 83 zM; 20 μL reaction volume). For a negative LAMP sample (absence of target sequence), positively charged amine-QDs remained dispersed due to interparticle electrostatic repulsion. While for a positive LAMP sample (presence of target sequence), amine-QDs became precipitated. The characterization data showed that amine-QDs were embedded in magnesium pyrophosphate crystals (generated during positive LAMP), thus leading to their coprecipitation. This amine-QD-based one-step LAMP assay advances the field of QD-based nucleic acid amplification assays in two aspects: (1) compatibility─one-step amplification and detection (versus separation of amplification and detection steps); and (2) universality─the same amine-QDs for different target sequences (versus different oligonucleotide-modified QDs for different target sequences).
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Affiliation(s)
- Shiyao Wang
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong 000000, China
| | - Ailin Qin
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong 000000, China
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong 000000, China
| | - Li Yin Chau
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong 000000, China
| | - Eunice W T Fok
- Agriculture, Fisheries and Conservation Department, Government of the Hong Kong Special Administrative Region, Hong Kong 000000, China
| | - Mei Yue Choy
- Agriculture, Fisheries and Conservation Department, Government of the Hong Kong Special Administrative Region, Hong Kong 000000, China
| | - Christopher J Brackman
- Agriculture, Fisheries and Conservation Department, Government of the Hong Kong Special Administrative Region, Hong Kong 000000, China
| | - Gilman K H Siu
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong 000000, China
| | - Chien-Ling Huang
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong 000000, China
| | - Shea Ping Yip
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong 000000, China
| | - Thomas M H Lee
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong 000000, China
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de Carvalho JA, Monteiro RC, Hagen F, de Camargo ZP, Rodrigues AM. Trends in Molecular Diagnostics and Genotyping Tools Applied for Emerging Sporothrix Species. J Fungi (Basel) 2022; 8:jof8080809. [PMID: 36012797 PMCID: PMC9409836 DOI: 10.3390/jof8080809] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 07/22/2022] [Accepted: 07/25/2022] [Indexed: 11/23/2022] Open
Abstract
Sporotrichosis is the most important subcutaneous mycosis that affects humans and animals worldwide. The mycosis is caused after a traumatic inoculation of fungal propagules into the host and may follow an animal or environmental transmission route. The main culprits of sporotrichosis are thermodimorphic Sporothrix species embedded in a clinical clade, including S. brasiliensis, S. schenckii, S. globosa, and S. luriei. Although sporotrichosis occurs worldwide, the etiological agents are not evenly distributed, as exemplified by ongoing outbreaks in Brazil and China, caused by S. brasiliensis and S. globosa, respectively. The gold standard for diagnosing sporotrichosis has been the isolation of the fungus in vitro. However, with the advance in molecular techniques, molecular assays have complemented and gradually replaced the classical mycological tests to quickly and accurately detect and/or differentiate molecular siblings in Sporothrix. Nearly all techniques available for molecular diagnosis of sporotrichosis involve PCR amplification, which is currently moving towards detecting Sporothrix DNA directly from clinical samples in multiplex qPCR assays. From an epidemiological perspective, genotyping is key to tracing back sources of Sporothrix infections, detecting diversity in outbreak areas, and thus uncovering finer-scale epidemiological patterns. Over the past decades, molecular epidemiological studies have provided essential information to policymakers regarding outbreak management. From high-to-low throughput genotyping methods, MLSA, AFLP, SSR, RAPD, PCR-RFLP, and WGS are available to assess the transmission dynamics and sporotrichosis expansion. This review discusses the trends in the molecular diagnosis of sporotrichosis, genotyping techniques applied in molecular epidemiological studies, and perspectives for the near future.
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Affiliation(s)
- Jamile Ambrósio de Carvalho
- Laboratory of Emerging Fungal Pathogens, Department of Microbiology, Immunology, and Parasitology, Discipline of Cellular Biology, Federal University of São Paulo (UNIFESP), São Paulo 04023062, Brazil; (J.A.d.C.); (R.C.M.); (Z.P.d.C.)
| | - Ruan Campos Monteiro
- Laboratory of Emerging Fungal Pathogens, Department of Microbiology, Immunology, and Parasitology, Discipline of Cellular Biology, Federal University of São Paulo (UNIFESP), São Paulo 04023062, Brazil; (J.A.d.C.); (R.C.M.); (Z.P.d.C.)
| | - Ferry Hagen
- Department of Medical Mycology, Westerdijk Fungal Biodiversity Institute, Uppsalalaan 8, 3584 CT Utrecht, The Netherlands;
- Institute for Biodiversity and Ecosystem Dynamics (IBED), University of Amsterdam, Sciencepark 904, 1098 XH Amsterdam, The Netherlands
- Department of Medical Microbiology, University Medical Center Utrecht, Heidelberglaan 100, 3584 CX Utrecht, The Netherlands
| | - Zoilo Pires de Camargo
- Laboratory of Emerging Fungal Pathogens, Department of Microbiology, Immunology, and Parasitology, Discipline of Cellular Biology, Federal University of São Paulo (UNIFESP), São Paulo 04023062, Brazil; (J.A.d.C.); (R.C.M.); (Z.P.d.C.)
- Department of Medicine, Discipline of Infectious Diseases, Federal University of São Paulo (UNIFESP), São Paulo 04023062, Brazil
| | - Anderson Messias Rodrigues
- Laboratory of Emerging Fungal Pathogens, Department of Microbiology, Immunology, and Parasitology, Discipline of Cellular Biology, Federal University of São Paulo (UNIFESP), São Paulo 04023062, Brazil; (J.A.d.C.); (R.C.M.); (Z.P.d.C.)
- Department of Medicine, Discipline of Infectious Diseases, Federal University of São Paulo (UNIFESP), São Paulo 04023062, Brazil
- Correspondence: ; Tel.: +55-1155764551 (ext. 1540)
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Boutal H, Moguet C, Pommiès L, Simon S, Naas T, Volland H. The Revolution of Lateral Flow Assay in the Field of AMR Detection. Diagnostics (Basel) 2022; 12:diagnostics12071744. [PMID: 35885647 PMCID: PMC9317642 DOI: 10.3390/diagnostics12071744] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 07/11/2022] [Accepted: 07/11/2022] [Indexed: 11/16/2022] Open
Abstract
The global spread of antimicrobial resistant (AMR) bacteria represents a considerable public health concern, yet their detection and identification of their resistance mechanisms remain challenging. Optimal diagnostic tests should provide rapid results at low cost to enable implementation in any microbiology laboratory. Lateral flow assays (LFA) meet these requirements and have become essential tools to combat AMR. This review presents the versatility of LFA developed for the AMR detection field, with particular attention to those directly triggering β-lactamases, their performances, and specific limitations. It considers how LFA can be modified by detecting not only the enzyme, but also its β-lactamase activity for a broader clinical sensitivity. Moreover, although LFA allow a short time-to-result, they are generally only implemented after fastidious and time-consuming techniques. We present a sample processing device that shortens and simplifies the handling of clinical samples before the use of LFA. Finally, the capacity of LFA to detect amplified genetic determinants of AMR by isothermal PCR will be discussed. LFA are inexpensive, rapid, and efficient tools that are easy to implement in the routine workflow of laboratories as new first-line tests against AMR with bacterial colonies, and in the near future directly with biological media.
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Affiliation(s)
- Hervé Boutal
- Département Médicaments et Technologies Pour la Santé (DMTS), Université Paris Saclay, CEA, INRAE, SPI, 91191 Gif-sur-Yvette, France; (H.B.); (C.M.); (L.P.); (S.S.)
| | - Christian Moguet
- Département Médicaments et Technologies Pour la Santé (DMTS), Université Paris Saclay, CEA, INRAE, SPI, 91191 Gif-sur-Yvette, France; (H.B.); (C.M.); (L.P.); (S.S.)
| | - Lilas Pommiès
- Département Médicaments et Technologies Pour la Santé (DMTS), Université Paris Saclay, CEA, INRAE, SPI, 91191 Gif-sur-Yvette, France; (H.B.); (C.M.); (L.P.); (S.S.)
| | - Stéphanie Simon
- Département Médicaments et Technologies Pour la Santé (DMTS), Université Paris Saclay, CEA, INRAE, SPI, 91191 Gif-sur-Yvette, France; (H.B.); (C.M.); (L.P.); (S.S.)
| | - Thierry Naas
- Bacteriology-Hygiene Unit, APHP, Hôpital Bicêtre, 94270 Le Kremlin-Bicêtre, France;
- Team Resist, UMR1184, Université Paris-Saclay—INSERM—CEA, LabEx Lermit, 91190 Gif-sur-Yvette, France
- Associated French National Reference Center for Antibiotic Resistance: Carbapenemase-Producing Enterobacteriaceae, 94270 Le Kremlin-Bicêtre, France
| | - Hervé Volland
- Département Médicaments et Technologies Pour la Santé (DMTS), Université Paris Saclay, CEA, INRAE, SPI, 91191 Gif-sur-Yvette, France; (H.B.); (C.M.); (L.P.); (S.S.)
- Correspondence:
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Huang G, Zhou H, Xiang Q, Zhang J, Hu X, Cheng R, Lan L, Wang Y, Shen Z. Exponential and efficient target-catalyst rolling circle amplification for label-free and ultrasensitive fluorescent detection of miR-21 and p53 gene. Anal Chim Acta 2022; 1221:340132. [DOI: 10.1016/j.aca.2022.340132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 06/10/2022] [Accepted: 06/25/2022] [Indexed: 11/01/2022]
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Chi Y, Shi M, Wu Y, Wu Y, Chang Y, Liu M. Single bacteria detection by droplet DNAzyme-coupled rolling circle amplification. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2022; 14:2244-2248. [PMID: 35611869 DOI: 10.1039/d2ay00656a] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
We described a new system termed droplet DNAzyme-coupled rolling circle amplification (dDRCA) that can selectively detect bacteria from clinical urine samples with single-cell sensitivity within 1.5 h compared with the several hours needed for traditionally used culture-based methods.
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Affiliation(s)
- Yanchen Chi
- School of Environmental Science and Technology, Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), Dalian University of Technology, Dalian POCT Laboratory, Dalian, 116024, China.
| | - Meng Shi
- School of Environmental Science and Technology, Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), Dalian University of Technology, Dalian POCT Laboratory, Dalian, 116024, China.
| | - Yanfang Wu
- School of Chemistry and Australian Centre for Nano Medicine, The University of New South Wales, Sydney, NSW, 2052, Australia
| | - Yunping Wu
- School of Environmental Science and Technology, Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), Dalian University of Technology, Dalian POCT Laboratory, Dalian, 116024, China.
| | - Yangyang Chang
- School of Environmental Science and Technology, Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), Dalian University of Technology, Dalian POCT Laboratory, Dalian, 116024, China.
| | - Meng Liu
- School of Environmental Science and Technology, Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), Dalian University of Technology, Dalian POCT Laboratory, Dalian, 116024, China.
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50
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Ma Y, He S, Huang J. DNA hydrogels as selective biomaterials for specifically capturing DNA, protein and bacteria. Acta Biomater 2022; 147:158-167. [PMID: 35584747 DOI: 10.1016/j.actbio.2022.05.023] [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: 01/28/2022] [Revised: 05/04/2022] [Accepted: 05/11/2022] [Indexed: 11/30/2022]
Abstract
The ability to selectively capture biomacromolecules and other components from solution has many important applications in biotechnology. However, capturing targets from solution while minimizing interference with the sample solution is still challenging. Here, we describe the design and assembly of a group of DNA hydrogels consisting of long single-stranded DNA produced by rolling amplification reaction (RCA) and crosslinked by DNA duplexes. The developed DNA hydrogels can selectively capture and separate oligonucleotides, proteins and bacteria from solution in situ without complex separation processes. Since such DNA hydrogels can capture their targets in the solution independently, multiple DNA hydrogels that target different compounds can be employed to separate different compounds in the solution at the same time. The work not only expands the application of DNA hydrogels, but also paves the way for developing novel selective biomaterials. STATEMENT OF SIGNIFICANCE: Biomaterials capable of selectively capturing various components have great potential in the field of biotechnology. Here, we proposed a new class of hydrogel composed of crosslinked long DNA strands for selectively capturing DNA, protein and bacteria. Unlike traditional polymeric hydrogels that have small meshes and limit macromolecule diffusion owing to the short distance between two adjacent crosslinks, the described DNA hydrogel has a much larger distance between its crosslinks because of the sequence designability of DNA, which allows easy diffusion of biomacromolecules through its networks and greatly expand its specific surface area. Moreover, the developed DNA hydrogel can also easily combine different aptamers to target different components via the Watson-Crick base pairing without making significant changes in its original design.
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Affiliation(s)
- Yinzhou Ma
- Department of Mechanics and Engineering Science, College of Engineering, Peking University, Beijing 100871, China; Beijing Innovation Center for Engineering Science and Advanced Technology, Peking University, Beijing 100871, China
| | - Shangwen He
- Department of Mechanics and Engineering Science, College of Engineering, Peking University, Beijing 100871, China
| | - Jianyong Huang
- Department of Mechanics and Engineering Science, College of Engineering, Peking University, Beijing 100871, China; Beijing Innovation Center for Engineering Science and Advanced Technology, Peking University, Beijing 100871, China.
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