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Yang B, Xin X, Cao X, Nasifu L, Nie Z, He B. Phenotypic and genotypic perspectives on detection methods for bacterial antimicrobial resistance in a One Health context: research progress and prospects. Arch Microbiol 2024; 206:409. [PMID: 39302440 DOI: 10.1007/s00203-024-04131-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: 07/29/2024] [Revised: 09/03/2024] [Accepted: 09/04/2024] [Indexed: 09/22/2024]
Abstract
The widespread spread of bacterial antimicrobial resistance (AMR) and multidrug-resistant bacteria poses a significant threat to global public health. Traditional methods for detecting bacterial AMR are simple, reproducible, and intuitive, requiring long time incubation and high labor intensity. To quickly identify and detect bacterial AMR is urgent for clinical treatment to reduce mortality rate, and many new methods and technologies were required to be developed. This review summarizes the current phenotypic and genotypic detection methods for bacterial AMR. Phenotypic detection methods mainly include antimicrobial susceptibility tests, while genotypic detection methods have higher sensitivity and specificity and can detect known or even unknown drug resistance genes. However, most of the current tests are either genotypic or phenotypic and rarely combined. Combining the advantages of phenotypic and genotypic methods, combined with the joint application of multiple rapid detection methods may be the trend for future AMR testing. Driven by rapid diagnostic technology, big data analysis, and artificial intelligence, detection methods of bacterial AMR are expected to constantly develop and innovate. Adopting rational detection methods and scientific data analysis can better address the challenges of bacterial AMR and ensure human health and social well-being.
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Affiliation(s)
- Bingbing Yang
- Department of Laboratory Medicine, Nanjing First Hospital, China Pharmaceutical University, Nanjing, 210006, China
- Department of Clinical Pharmacy, School of Basic Medicine and Clinical Pharmacy, Pharmaceutical University, Nanjing, 211198, China
| | - Xiaoqi Xin
- Department of Laboratory Medicine, Nanjing First Hospital, China Pharmaceutical University, Nanjing, 210006, China
- Department of Clinical Pharmacy, School of Basic Medicine and Clinical Pharmacy, Pharmaceutical University, Nanjing, 211198, China
| | - Xiaoqing Cao
- Department of Laboratory Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, China
| | - Lubanga Nasifu
- Department of Laboratory Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, China
- Department of Biology, Muni University, Arua, Uganda
| | - Zhenlin Nie
- Department of Laboratory Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, China.
| | - Bangshun He
- Department of Laboratory Medicine, Nanjing First Hospital, China Pharmaceutical University, Nanjing, 210006, China.
- Department of Laboratory Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, China.
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Crego-Vicente B, del Olmo MD, Muro A, Fernández-Soto P. Multiplexing LAMP Assays: A Methodological Review and Diagnostic Application. Int J Mol Sci 2024; 25:6374. [PMID: 38928080 PMCID: PMC11203869 DOI: 10.3390/ijms25126374] [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: 04/30/2024] [Revised: 05/27/2024] [Accepted: 06/06/2024] [Indexed: 06/28/2024] Open
Abstract
The loop-mediated isothermal amplification (LAMP) technique is a great alternative to PCR-based methods, as it is fast, easy to use and works with high sensitivity and specificity without the need for expensive instruments. However, one of the limitations of LAMP is difficulty in achieving the simultaneous detection of several targets in a single tube, as the methodologies that allow this rely on fluorogenic probes containing specific target sequences, complicating their adaptation and the optimization of assays. Here, we summarize different methods for the development of multiplex LAMP assays based on sequence-specific detection, illustrated with a schematic representation of the technique, and evaluate their practical application based on the real-time detection and quantification of results, the possibility to visualize the results at a glance, the prior stabilization of reaction components, promoting the point-of-care use, the maximum number of specific targets amplified, and the validation of the technique in clinical samples. The various LAMP multiplexing methodologies differ in their operating conditions and mechanism. Each methodology has its advantages and disadvantages, and the choice among them will depend on specific application interests.
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Affiliation(s)
| | | | - Antonio Muro
- Infectious and Tropical Diseases Research Group (e-INTRO), Biomedical Research Institute of Salamanca Research Centre for Tropical Diseases at the University of Salamanca (IBSAL-CIETUS), Faculty of Pharmacy, University of Salamanca, 37007 Salamanca, Spain; (B.C.-V.); (M.D.d.O.)
| | - Pedro Fernández-Soto
- Infectious and Tropical Diseases Research Group (e-INTRO), Biomedical Research Institute of Salamanca Research Centre for Tropical Diseases at the University of Salamanca (IBSAL-CIETUS), Faculty of Pharmacy, University of Salamanca, 37007 Salamanca, Spain; (B.C.-V.); (M.D.d.O.)
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Song J, Lee CY, Park HG. Ultrasensitive multiplexed miRNA detection based on a self-priming hairpin-triggered isothermal cascade reaction. Chem Commun (Camb) 2021; 58:2279-2282. [PMID: 34931214 DOI: 10.1039/d1cc06282d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
We herein describe an ultrasensitive isothermal strategy to detect miRNAs in a multiplexed manner by utilizing a self-priming hairpin-triggered cascade reaction and the adsorption properties of graphene oxide (GO). In principle, a self-priming hairpin probe (SHP) was designed to be opened through binding to the target miRNA and rearranged to serve as a primer. The following extension displaced the target miRNA to be recycled for opening another SHP and produced a double-stranded (ds) SHP with a longer stem region. The nicking enzyme recognition site within the ds SHP was then subjected to continuous repeated nicking and extension reactions, consequently producing a large amount of the trigger sequence. In the second reaction phase, the trigger also transformed another single-stranded (ss) target template probe (TTP) into ds TTP and simultaneously produced numerous target mimic strands (Target') in the same manner, which could activate the first reaction phase, mimicking the target miRNA. Since the ss portions of the two probes were all transformed to the ds forms (ds SHP and ds TTP), they are resistant to the adsorption by graphene oxide (GO) and then emitted intense fluorescence after the application of GO while the ss forms of the two probes produced a negligible fluorescence signal without the target miRNAs. Based on this unique design principle, we were able to simultaneously identify multiple target miRNAs very sensitively down to attomolar levels (42.63 aM for miRNA let-7a, 13.08 aM for miRNA-141, and 10.14 aM for miRNA-98) within 30 min.
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Affiliation(s)
- Jayeon Song
- Department of Chemical and Biomolecular Engineering (BK 21+ program), KAIST, Daehak-ro 291, Yuseong-gu, Daejeon 305-701, Republic of Korea.
| | - Chang Yeol Lee
- Department of Chemical and Biomolecular Engineering (BK 21+ program), KAIST, Daehak-ro 291, Yuseong-gu, Daejeon 305-701, Republic of Korea.
| | - Hyun Gyu Park
- Department of Chemical and Biomolecular Engineering (BK 21+ program), KAIST, Daehak-ro 291, Yuseong-gu, Daejeon 305-701, Republic of Korea.
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Belas A, Menezes J, Gama LT, Pomba C. Sharing of Clinically Important Antimicrobial Resistance Genes by Companion Animals and Their Human Household Members. Microb Drug Resist 2020; 26:1174-1185. [PMID: 32354251 DOI: 10.1089/mdr.2019.0380] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
The aims of this study were to implement a rapid easy methodology, to characterize the antimicrobial resistance gene (AMR) gut content associated with Enterobacteriales and staphylococci; and to evaluate statistical association between AMRs present in fecal samples from healthy companion animals and their human household members. Fecal samples were collected from 27 humans and 29 companion animals living in close contact in 20 households. Nineteen healthy humans without daily contact with companion animals were the control group. After DNA extraction, β-lactamase families and 10 genes of other antimicrobial classes were screened by PCR. Furthermore, third-generation cephalosporin-resistant, carbapenem-resistant, and colistin-resistant Enterobacteriales and methicillin-resistant staphylococci were screened by bacteriological methods. The blaTEM-1B gene with a P3 promotor was the most frequent β-lactam-resistant gene detected in humans and companion animals from households (33.3%, and 17.2%, respectively). The sul2 was the most frequently shared gene by humans and animals from the same household. In 50% of households at least one AMR was detected simultaneously in companion animal/owner pairs. Healthy humans and companion animals carried several AMRs of clinical importance. To the best our knowledge, this study reports the first detection of the blaSHV-27 gene in fecal samples from healthy humans in Portugal and in Europe.
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Affiliation(s)
- Adriana Belas
- CIISA-Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Lisboa, Portugal
| | - Juliana Menezes
- CIISA-Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Lisboa, Portugal
| | - Luís T Gama
- CIISA-Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Lisboa, Portugal
| | - Constança Pomba
- CIISA-Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Lisboa, Portugal
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Jang H, Lee CY, Lee S, Park KS, Park HG. Flap endonuclease-initiated enzymatic repairing amplification for ultrasensitive detection of target nucleic acids. NANOSCALE 2019; 11:3633-3638. [PMID: 30741288 DOI: 10.1039/c8nr06699j] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
A new isothermal nucleic acid amplification method termed FERA (Flap endonuclease-initiated Enzymatic Repairing Amplification) is developed for the ultrasensitive detection of target nucleic acids. In the FERA method, flap endonuclease (FEN) catalyzes the hydrolytic cleavage at the junction of single- and double-stranded DNAs which is formed only in the presence of target nucleic acids, and releases short oligonucleotides to promote the cyclic enzymatic repairing amplification (ERA) combined with FEN-based amplification. As a result, a large amount of single- and double-stranded DNAs are generated under the isothermal conditions, leading to the high fluorescence intensity from the SYBR I green dye. Relying on the powerful amplification method, we successfully determined the target nucleic acids with a limit of detection as low as 15.16 aM, which corresponds to approximately 180 molecules in 20 μL reaction volume, and verified the practical applicability by detecting long target nucleic acids derived from Chlamydia trachomatis.
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Affiliation(s)
- Hyowon Jang
- Department of Chemical and Biomolecular Engineering (BK 21+ program), KAIST, Daehak-ro 291, Yuseong-gu, Daejeon 305-701, Republic of Korea.
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