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Khera HK, Mishra R. Nucleic Acid Based Testing (NABing): A Game Changer Technology for Public Health. Mol Biotechnol 2024; 66:2168-2200. [PMID: 37695473 DOI: 10.1007/s12033-023-00870-4] [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: 04/28/2023] [Accepted: 08/21/2023] [Indexed: 09/12/2023]
Abstract
Timely and accurate detection of the causal agent of a disease is crucial to restrict suffering and save lives. Mere symptoms are often not enough to detect the root cause of the disease. Better diagnostics applied for screening at a population level and sensitive detection assays remain the crucial component of disease surveillance which may include clinical, plant, and environmental samples, including wastewater. The recent advances in genome sequencing, nucleic acid amplification, and detection methods have revolutionized nucleic acid-based testing (NABing) and screening assays. A typical NABing assay consists of three modules: isolation of the nucleic acid from the collected sample, identification of the target sequence, and final reading the target with the help of a signal, which may be in the form of color, fluorescence, etc. Here, we review current NABing assays covering the different aspects of all three modules. We also describe the frequently used target amplification or signal amplification procedures along with the variety of applications of this fast-evolving technology and challenges in implementation of NABing in the context of disease management especially in low-resource settings.
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Affiliation(s)
- Harvinder Kour Khera
- Tata Institute for Genetics and Society, New inStem Building NCBS Campus, GKVK Post, Bellary Road, Bengaluru, 560065, India.
| | - Rakesh Mishra
- Tata Institute for Genetics and Society, New inStem Building NCBS Campus, GKVK Post, Bellary Road, Bengaluru, 560065, India.
- CSIR-Centre for Cellular and Molecular Biology, Uppal Rd, IICT Colony, Habsiguda, Hyderabad, Telangana, 500007, India.
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2
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Wang Y, Ma C, Wang S, Wu H, Chen X, Ma J, Wang L, Qiu HJ, Sun Y. Advances in the immunoescape mechanisms exploited by alphaherpesviruses. Front Microbiol 2024; 15:1392814. [PMID: 38962133 PMCID: PMC11221368 DOI: 10.3389/fmicb.2024.1392814] [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: 02/28/2024] [Accepted: 05/27/2024] [Indexed: 07/05/2024] Open
Abstract
Alphaherpesviruses, categorized as viruses with linear DNA composed of two complementary strands, can potentially to induce diseases in both humans and animals as pathogens. Mature viral particles comprise of a core, capsid, tegument, and envelope. While herpesvirus infection can elicit robust immune and inflammatory reactions in the host, its persistence stems from its prolonged interaction with the host, fostering a diverse array of immunoescape mechanisms. In recent years, significant advancements have been achieved in comprehending the immunoescape tactics employed by alphaherpesviruses, including pseudorabies virus (PRV), herpes simplex virus (HSV), varicella-zoster virus (VZV), feline herpesvirus (FeHV), equine herpesvirus (EHV), and caprine herpesvirus type I (CpHV-1). Researchers have unveiled the intricate adaptive mechanisms existing between viruses and their natural hosts. This review endeavors to illuminate the research advancements concerning the immunoescape mechanisms of alphaherpesviruses by delineating the pertinent proteins and genes involved in virus immunity. It aims to furnish valuable insights for further research on related mechanisms and vaccine development, ultimately contributing to virus control and containment efforts.
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Affiliation(s)
- Yimin Wang
- Henan Institute of Science and Technology, Xinxiang, China
- Ministry of Education Key Laboratory for Animal Pathogens and Biosafety, Zhengzhou, China
| | - Caoyuan Ma
- Henan Institute of Science and Technology, Xinxiang, China
- Ministry of Education Key Laboratory for Animal Pathogens and Biosafety, Zhengzhou, China
- State Key Laboratory for Animal Disease Control and Prevention, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Shan Wang
- Henan Institute of Science and Technology, Xinxiang, China
- Ministry of Education Key Laboratory for Animal Pathogens and Biosafety, Zhengzhou, China
| | - Hongxia Wu
- State Key Laboratory for Animal Disease Control and Prevention, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Xuanqi Chen
- Henan Institute of Science and Technology, Xinxiang, China
- Ministry of Education Key Laboratory for Animal Pathogens and Biosafety, Zhengzhou, China
| | - Jinyou Ma
- Henan Institute of Science and Technology, Xinxiang, China
- Ministry of Education Key Laboratory for Animal Pathogens and Biosafety, Zhengzhou, China
| | - Lei Wang
- Henan Institute of Science and Technology, Xinxiang, China
- Ministry of Education Key Laboratory for Animal Pathogens and Biosafety, Zhengzhou, China
| | - Hua-Ji Qiu
- State Key Laboratory for Animal Disease Control and Prevention, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Yuan Sun
- Henan Institute of Science and Technology, Xinxiang, China
- Ministry of Education Key Laboratory for Animal Pathogens and Biosafety, Zhengzhou, China
- State Key Laboratory for Animal Disease Control and Prevention, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
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Chen J, Zhang J, Xie Q, Chu Z, Zhang F, Wang Q. Ultrasensitive detection of exosomes by microchip electrophoresis combining with triple amplification strategies. Talanta 2023; 265:124930. [PMID: 37451122 DOI: 10.1016/j.talanta.2023.124930] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 07/06/2023] [Accepted: 07/09/2023] [Indexed: 07/18/2023]
Abstract
The analysis of exosomes is significant as they can be used for various pathophysiological processes, especially cancer related intercellular communication. Therefore, a convenient, reliable, and sensitive detection method is urgently needed. Strand displacement amplification (SDA) and catalytic hairpin assembly (CHA) are two kinds of effective isothermal nucleic acid amplification methods. In this article, an efficient quantitative MCE method for detecting human breast cancer cell (MCF-7) exosomes assisted by triple amplification strategies combining cholesterol probe (Chol-probe) with SDA-CHA was first developed. CD63 aptamer was immobilized on the avidin magnetic beads to specifically capture exosomes and then Chol-probe with high affinity was spontaneously inserted into the exosome membrane, which was the first step of amplification strategy to improve detection sensitivity. After magnetic separation, Chol-probe could complement ssDNA and trigger SDA, producing a large number of DNA sequences (Ta) to trigger CHA, achieving SDA-CHA amplification. Under optimal conditions, the detection limit (LOD) for MCF-7 exosomes was as low as 26 particle/μL (S/N = 3). This method provides an effective approach for sensitive and accurate quantification of tumor exosomes, and can be expected to detect exosomes in clinical samples.
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Affiliation(s)
- Jingyi Chen
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, PR China
| | - Jingzi Zhang
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, PR China
| | - Qihui Xie
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, PR China
| | - Zhaohui Chu
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, PR China
| | - Fan Zhang
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, PR China.
| | - Qingjiang Wang
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, PR China.
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4
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Geng X, Chen J, Chu Z, Zhang J, Zhang F, Wang Q. Highly sensitive detection of MUC1 by microchip electrophoresis combining with target recycling amplification and strand displacement amplification. J Pharm Biomed Anal 2022; 219:114967. [PMID: 35914507 DOI: 10.1016/j.jpba.2022.114967] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 07/21/2022] [Accepted: 07/25/2022] [Indexed: 11/16/2022]
Abstract
Mucin 1 (MUC1) is usually overexpressed in a variety of malignant tumors, and quantitative analysis of MUC1 plays an important role in the early diagnosis of cancer. In this work, a highly sensitive MUC1 assay was developed by integrating microchip electrophoresis (MCE) with target recycling amplification (TRA) and strand displacement amplification (SDA). Specifically, the presence of MUC1 can trigger the exposure of the designed hairpin probe (HP) to initiate SDA and an amplified amount of ssDNA is produced finally. The amount of these ssDNA can be detected by MCE, then the concentration of MUC1 can be obtained through the correlation between MUC1 concentration and ssDNA concentration. The experimental results show that the MCE signal had a good linear relationship with MUC1 concentration in the range of 1.0 pg/mL - 1.0 × 103 pg/mL with a low limit of detection of 0.23 pg/mL under the optimal conditions (S/N = 3). Additionally, the assay had been successfully applied to detect MUC1 in biological samples with satisfactory results, providing an alternative assay for the detection of other tumor markers owing to the high sensitivity, high selectivity, simple operation and low sample consumption.
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Affiliation(s)
- Xing Geng
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, PR China
| | - Jingyi Chen
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, PR China
| | - Zhaohui Chu
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, PR China
| | - Jingzi Zhang
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, PR China
| | - Fan Zhang
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, PR China.
| | - Qingjiang Wang
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, PR China.
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Du J, Liu J, Liu K, Zhao D, Sagratini G, Tao J, Bai Y. Development of a fluorescent test strip sensor based on surface positively-charged magnetic bead separation for the detection of Listeria monocytogenes. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2022; 14:2188-2194. [PMID: 35611990 DOI: 10.1039/d2ay00384h] [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
Listeria monocytogenes is one of the major foodborne pathogens, which may cause serious food safety problems and illnesses in humans and animals. Consequently, sensitive, fast and reliable detection methods, as well as effective sample preparation methods are in great demand. In this study, a magnetic separation method based on a aptamer functionalized positively-charged magnetic beads (Fe3O4@aptamer) was established and a fluorescent test strip sensor was constructed for the rapid, sensitive and specific detection of Listeria monocytogenes. Benefiting from the dual recognition and signal amplification process of Fe3O4@aptamer enrichment and the polymerase chain reaction of the hly gene, the fluorescent strip sensor for the detection of Listeria monocytogenes was determined to be reliable and sensitive, with a linear curve obtained in the range of 1.0 × 102 to 1.9 × 108 CFU mL-1, and a detection limit of 1.0 × 102 CFU mL-1. The detection was achieved in 3 h without culture enrichment. Furthermore, the developed method was successfully applied for the detection of Listeria monocytogenes in pork tenderloin, with the recoveries ranging from 91.1% to 97.1%, and a coefficient of variation of less than 23.4%, revealing the feasible and reliable application of this method in practical samples. The proposed fluorescent strip sensor is rapid, sensitive and specific, giving it great application prospects for use in the field of pathogenic bacterium detection.
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Affiliation(s)
- Juan Du
- College of Food and Biological Engineering, Zhengzhou University of Light Industry, Zhengzhou, China.
- Henan Key Laboratory of Cold Chain Food Quality and Safety Control, Zhengzhou, China
- Henan Collaborative Innovation Center of Food Production and Safety, Zhengzhou, China
| | - Jialei Liu
- College of Food and Biological Engineering, Zhengzhou University of Light Industry, Zhengzhou, China.
| | - Kai Liu
- College of Food and Biological Engineering, Zhengzhou University of Light Industry, Zhengzhou, China.
| | - Dianbo Zhao
- College of Food and Biological Engineering, Zhengzhou University of Light Industry, Zhengzhou, China.
- Henan Key Laboratory of Cold Chain Food Quality and Safety Control, Zhengzhou, China
- Henan Collaborative Innovation Center of Food Production and Safety, Zhengzhou, China
| | - Gianni Sagratini
- School of Pharmacy, University of Camerino, via Madonna delle Carceri 9/B, Camerino, 62032, Italy
| | - Jing Tao
- College of Food and Biological Engineering, Zhengzhou University of Light Industry, Zhengzhou, China.
- School of Pharmacy, University of Camerino, via Madonna delle Carceri 9/B, Camerino, 62032, Italy
| | - Yanhong Bai
- College of Food and Biological Engineering, Zhengzhou University of Light Industry, Zhengzhou, China.
- Henan Key Laboratory of Cold Chain Food Quality and Safety Control, Zhengzhou, China
- Henan Collaborative Innovation Center of Food Production and Safety, Zhengzhou, China
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Ren L, Hong F, Chen Y. Enzyme-free catalytic hairpin assembly reaction-mediated micro-orifice resistance assay for the ultrasensitive and low-cost detection of Listeria monocytogenes. Biosens Bioelectron 2022; 214:114490. [DOI: 10.1016/j.bios.2022.114490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 05/29/2022] [Accepted: 06/16/2022] [Indexed: 11/02/2022]
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7
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A sensitive visual DNAzyme-based strategy for Cronobacter sakazakii in PIF by aRPA. Food Control 2022. [DOI: 10.1016/j.foodcont.2022.109035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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8
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Hybrid RCA-DLS assay combined with aPCR for sensitive Salmonella enteritidis detection. Anal Biochem 2022; 646:114647. [DOI: 10.1016/j.ab.2022.114647] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Revised: 02/23/2022] [Accepted: 03/06/2022] [Indexed: 11/23/2022]
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Xue T, Lu Y, Yang H, Hu X, Zhang K, Ren Y, Wu C, Xia X, Deng R, Wang Y. Isothermal RNA Amplification for the Detection of Viable Pathogenic Bacteria to Estimate the Salmonella Virulence for Causing Enteritis. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:1670-1678. [PMID: 35099949 DOI: 10.1021/acs.jafc.1c07182] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Viable foodborne pathogens can cause intestinal infection and food poisoning. Herein, we reported an RNA assay allowing for sensitive (close to 1 CFU and 1% viable bacteria detectable) and rapid (within 2.5 h) detection of viable pathogenic bacteria by coupling isothermal RNA amplification (nucleic acid sequence-based amplification, NASBA) with a CRISPR/Cas13a system. NASBA allowed direct amplification of 16S rRNA extracted from viable S. enterica (RNAs degrade rapidly in dead bacteria), and the specificity of amplification was ensured using Cas13a/crRNA to recognize the amplicons. We used the CRISPR/Cas13-based NASBA assay (termed cNASBA assay) to investigate the in vivo colonization and intestinal infection of S. enterica in mice. We found that S. enterica was mainly colonized at the cecum, colon, and rectum, and the severity of enteritis caused by S. enterica was determined by the number of viable S. enterica rather than the total count of S. enterica. The cNASBA assay can quantify viable S. enterica and thus can improve the accuracy of virulence estimation compared to qPCR. It shows promise as a reliable tool for monitoring pathogen contamination and biosafety control.
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Affiliation(s)
- Ting Xue
- Targeted Tracer Research and Development Laboratory, Institute of Respiratory Health, State Key Laboratory of Biotherapy, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Ying Lu
- Targeted Tracer Research and Development Laboratory, Institute of Respiratory Health, State Key Laboratory of Biotherapy, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Hao Yang
- College of Biomass Science and Engineering, Healthy Food Evaluation Research Center, Sichuan University, Chengdu 610065, China
| | - Xinyue Hu
- Targeted Tracer Research and Development Laboratory, Institute of Respiratory Health, State Key Laboratory of Biotherapy, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Kaixiang Zhang
- School of Pharmaceutical Sciences, Key Laboratory of Targeting Therapy and Diagnosis for Critical Diseases, Zhengzhou University, Zhengzhou 450001, China
| | - Yao Ren
- College of Biomass Science and Engineering, Healthy Food Evaluation Research Center, Sichuan University, Chengdu 610065, China
| | - Chengyong Wu
- Targeted Tracer Research and Development Laboratory, Institute of Respiratory Health, State Key Laboratory of Biotherapy, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Xuhan Xia
- College of Biomass Science and Engineering, Healthy Food Evaluation Research Center, Sichuan University, Chengdu 610065, China
| | - Ruijie Deng
- College of Biomass Science and Engineering, Healthy Food Evaluation Research Center, Sichuan University, Chengdu 610065, China
| | - Yuxi Wang
- Targeted Tracer Research and Development Laboratory, Institute of Respiratory Health, State Key Laboratory of Biotherapy, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu 610041, China
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11
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Shan S, Huang Y, Huang Z, Long Z, Liu C, Zhao X, Xing K, Xiao X, Liu J, Huang Y, Lai W, Liu D. Detection of stx1 and stx2 and subtyping of Shiga toxin-producing Escherichia coli using asymmetric PCR combined with lateral flow immunoassay. Food Control 2021. [DOI: 10.1016/j.foodcont.2021.108051] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Xie G, Zhou D, Zhao G, Feng X, Aguilar ZP, Xu H. Recombinase aided amplification with photoreactive DNA-binding dye for rapid detection of viable Staphylococcus aureus. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2020.110249] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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13
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Liang T, Wu X, Chen B, Liu J, Aguilar ZP, Xu H. The PCR-HCR dual signal amplification strategy for ultrasensitive detection of Escherichia coli O157:H7 in milk. Lebensm Wiss Technol 2020. [DOI: 10.1016/j.lwt.2020.109642] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Zhang Y, Cui G, Meng Y, Wang Y, Hun X. Chemiluminescence assay for Listeria monocytogenes based on Cu/Co/Ni ternary nanocatalyst coupled with penicillin as generic capturing agent. LUMINESCENCE 2020; 36:11-19. [PMID: 32602594 DOI: 10.1002/bio.3908] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 06/16/2020] [Accepted: 06/26/2020] [Indexed: 11/08/2022]
Abstract
Bacterial pathogen control is important in seafood production. In this study, a Cu/Co/Ni ternary nanoalloy (Cu/Co/Ni TNA) was synthesized using the oleylamine reducing method. It was found that Cu/Co/Ni TNA greatly enhanced the chemiluminescence (CL) signal of the hydroxylamine-O-sulfonic acid (HOSA)-luminol system. The CL properties of Cu/Co/Ni TNA were investigated systemically. The possible CL mechanism also was intensively investigated. Based on the enhanced CL phenomenon of Cu/Co/Ni TNA, a Cu/Co/Ni TNA, penicillin, and anti-L. monocytogenes (Listeria monocytogenes) antibody-based sandwich complex assay for detection of L. monocytogenes was established. In this sandwich CL assay, penicillin was employed to capture and enrich pathogenic bacteria with penicillin-binding proteins (PBPs) while anti-L. monocytogenes antibody was adopted as the specific recognition molecule to recognize L. monocytogenes. L. monocytogenes was detected sensitively based on this new Cu/Co/Ni TNA-HOSA-luminol CL system. The CL intensity was proportional to the L. monocytogenes concentration ranging from 2.0 × 102 CFU ml-1 to 3.0 × 107 CFU ml-1 and the limit of detection wa 70 CFU ml-1 . The reliability and potential applications of our method was verified by comparison with official methods and recovery tests in environment and food samples.
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Affiliation(s)
- Yue Zhang
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE; Shandong Key Laboratory of Biochemical Analysis; Key Laboratory of Analytical Chemistry for Life Science in Universities of Shandong; College of Marine Science and Biological Engineering; Institute of Life Sciences and Biomass Resources; College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, China
| | - Gaoxi Cui
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE; Shandong Key Laboratory of Biochemical Analysis; Key Laboratory of Analytical Chemistry for Life Science in Universities of Shandong; College of Marine Science and Biological Engineering; Institute of Life Sciences and Biomass Resources; College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, China
| | - Yuchan Meng
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE; Shandong Key Laboratory of Biochemical Analysis; Key Laboratory of Analytical Chemistry for Life Science in Universities of Shandong; College of Marine Science and Biological Engineering; Institute of Life Sciences and Biomass Resources; College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, China
| | - Yujing Wang
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE; Shandong Key Laboratory of Biochemical Analysis; Key Laboratory of Analytical Chemistry for Life Science in Universities of Shandong; College of Marine Science and Biological Engineering; Institute of Life Sciences and Biomass Resources; College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, China
| | - Xu Hun
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE; Shandong Key Laboratory of Biochemical Analysis; Key Laboratory of Analytical Chemistry for Life Science in Universities of Shandong; College of Marine Science and Biological Engineering; Institute of Life Sciences and Biomass Resources; College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, China
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Liu J, Zhan Z, Liang T, Xie G, Aguilar ZP, Xu H. Dual-signal amplification strategy: Universal asymmetric tailing-PCR triggered rolling circle amplification assay for fluorescent detection of Cronobacter spp. in milk. J Dairy Sci 2020; 103:3055-3065. [PMID: 32037161 DOI: 10.3168/jds.2019-17590] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2019] [Accepted: 12/08/2019] [Indexed: 01/19/2023]
Abstract
Cronobacter spp. are important opportunistic foodborne pathogens in powdered infant formula that cause many serious diseases in neonates and infants. In this study, a novel assay based on dual signal amplification strategy was developed by coupling asymmetric tailing PCR (AT-PCR) with rolling circle amplification (RCA) for the detection of Cronobacter spp. in milk. The tailing single-stranded DNA was generated through AT-PCR and used to initiate RCA, generating tandem repetitive G-quadruplex sequences. In the presence of the fluorescence dye thioflavin T that could intercalate into the G-quadruplex structures, the fluorescence signal was detected with a microplate reader. The AT-PCR coupled with RCA assay was specific for Cronobacter spp. detection because of the highly specific primers chosen for the AT-PCR. The limits of detection were 4.3 × 101 cfu/mL in pure culture and 4.5 × 102 cfu/mL in spiked milk, respectively. The fixed sequences designed in the hairpin DNA allowed this AT-PCR coupled with RCA assay to serve as a universal platform for the detection of other pathogens by modifying the specificity of the PCR primers.
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Affiliation(s)
- Ju Liu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, 330047, PR China
| | - Zhongxu Zhan
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, 330047, PR China; Jiangxi Institute for Food Control, Nanchang, 330001, PR China
| | - Taobo Liang
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, 330047, PR China
| | - Guoyang Xie
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, 330047, PR China
| | | | - Hengyi Xu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, 330047, PR China.
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Zhan Z, Li H, Liu J, Xie G, Xiao F, Wu X, Aguilar ZP, Xu H. A competitive enzyme linked aptasensor with rolling circle amplification (ELARCA) assay for colorimetric detection of Listeria monocytogenes. Food Control 2020. [DOI: 10.1016/j.foodcont.2019.106806] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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