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Liu D, Luo M, Zhu YX, Zeng ZZ, Hu JJ, Cai MZ, Wang J, Yin WX, Schnabel G, Luo CX. Visual detection of fungicide resistance by combining RPA and CRISPR/Cas12a in peach Brown rot fungus Monilinia fructicola. PEST MANAGEMENT SCIENCE 2024. [PMID: 39096082 DOI: 10.1002/ps.8330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Revised: 07/05/2024] [Accepted: 07/09/2024] [Indexed: 08/04/2024]
Abstract
BACKGROUND Peach brown rot caused by Monilinia fructicola severely affects the quality and yield of peach, resulting in large economic losses worldwide. Methyl benzimidazole carbamate (MBC) fungicides and sterol demethylation inhibitor (DMI) fungicides are among the most applied chemical classes used to control the disease but resistance in the target pathogen has made them risky choices. Timely monitoring of resistance to these fungicides in orchards could prevent control failure in practice. RESULTS In the current study, we developed methods based on recombinase polymerase amplification (RPA) and CRISPR/Cas12a systems to detect MBC and DMI resistance based on the E198A mutation in the β-tubulin (MfTub2) gene and the presence of the Mona element in the upstream region of the MfCYP51, respectively. For MBC resistance, RPA primers were designed that artificially incorporated PAM sites to facilitate the CRISPR/Cas12a reaction. Subsequently, specific tcrRNAs were designed based on the E198A mutation site. For the detection of the Mona element, we designed RPA primers M-DMI-F2/M-DMI-R1 that in combination with crRNA1 detected 'Mona' and distinguished resistant from sensitive strains. CONCLUSION Both methods exhibited high sensitivity and specificity, requiring only a simple isothermal device to obtain results within 1 h at 37 °C. The FQ-reporter enabled visualization with a handheld UV or white light flashlight. This method was successfully used with purified DNA from lab cultures and crude DNA from symptomatic fruit tissue, highlighting its potential for on-site detection of resistant strains in orchards. © 2024 Society of Chemical Industry.
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Affiliation(s)
- Duo Liu
- National Key Laboratory for Germplasm Innovation and Utilization of Horticultural Crops, Huazhong Agricultural University, Wuhan, China
- Hubei Key Laboratory of Plant Pathology, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Mei Luo
- National Key Laboratory for Germplasm Innovation and Utilization of Horticultural Crops, Huazhong Agricultural University, Wuhan, China
- Hubei Key Laboratory of Plant Pathology, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Yong-Xu Zhu
- National Key Laboratory for Germplasm Innovation and Utilization of Horticultural Crops, Huazhong Agricultural University, Wuhan, China
- Hubei Key Laboratory of Plant Pathology, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Zhe-Zheng Zeng
- National Key Laboratory for Germplasm Innovation and Utilization of Horticultural Crops, Huazhong Agricultural University, Wuhan, China
- Hubei Key Laboratory of Plant Pathology, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Jia-Jie Hu
- National Key Laboratory for Germplasm Innovation and Utilization of Horticultural Crops, Huazhong Agricultural University, Wuhan, China
- Hubei Key Laboratory of Plant Pathology, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Min-Zheng Cai
- National Key Laboratory for Germplasm Innovation and Utilization of Horticultural Crops, Huazhong Agricultural University, Wuhan, China
- Hubei Key Laboratory of Plant Pathology, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Jing Wang
- National Key Laboratory for Germplasm Innovation and Utilization of Horticultural Crops, Huazhong Agricultural University, Wuhan, China
- Hubei Key Laboratory of Plant Pathology, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Wei-Xiao Yin
- Hubei Key Laboratory of Plant Pathology, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Guido Schnabel
- Department of Plant and Environmental Sciences, Clemson University, Clemson, SC, USA
| | - Chao-Xi Luo
- National Key Laboratory for Germplasm Innovation and Utilization of Horticultural Crops, Huazhong Agricultural University, Wuhan, China
- Hubei Key Laboratory of Plant Pathology, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
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Huang HL, Luo NJ, Chen WZ, Wang XW, Zhou CX, Jiang HB. A highly specific and ultrasensitive approach to detect Prymnesium parvum based on RPA-CRISPR-LbaCas12a-LFD system. Anal Chim Acta 2024; 1315:342797. [PMID: 38879209 DOI: 10.1016/j.aca.2024.342797] [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: 02/15/2024] [Revised: 04/23/2024] [Accepted: 05/29/2024] [Indexed: 06/29/2024]
Abstract
BACKGROUND Harmful algal blooms (HABs), caused by the rapid proliferation or aggregation of microorganisms, are catastrophic for the environment. The Prymnesium parvum is a haptophyte algal species that is found worldwide and is responsible for extensive blooms and death of larval amphibians and bivalves, causing serious negative impacts on the ecological environment. For the prevention and management of environmental pollution, it is crucial to explore and develop early detection strategies for HABs on-site using simple methods. The major challenge related to early detection is the accurate and sensitive detection of algae present in low abundance. RESULTS Herein, recombinase polymerase amplification (RPA) was combined with clustered regularly interspaced short palindromic repeats and Cas12a protein (CRISPR-LbaCas12a) systems, and the lateral flow dipstick (LFD) was used for the first time for early detection of P. parvum. The internal transcribed spacer (ITS) of P. parvum was selected as the target sequence, and the concentration of single-strand DNA reporters, buffer liquid system, reaction time, and amount of gold particles were optimized. The RPA-CRISPR-LbaCas12a-LFD approach demonstrated highly specificity during experimental testing, with no cross-reaction against different microalgae used as controls. In addition, the lowest detection limit was 10,000 times better than the lowest detection limit of the standalone RPA approach. The feasibility and robustness of this approach were further verified by using the different environmental samples. It also observed that P. parvum are widely distributed in Chinese Sea, but the cell density of P. parvum is relatively low (<0.1 cells/mL). SIGNIFICANCE The developed approach has an excellent specificity and offers 10,000 times better sensitivity than the standalone RPA approach. These advantages make this approach suitable for early warning detection and prevention of HAB events in environmental water. Also, the outcomes of this study could promote a shift from traditional laboratory-based detection to on-site monitoring, facilitating early warning against HABs.
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Affiliation(s)
- Hai-Long Huang
- Key Laboratory of Marine Biotechnology of Zhejiang Province, School of Marine Science, Ningbo University, Ningbo, Zhejiang, 315211, China.
| | - Ning-Jian Luo
- Key Laboratory of Marine Biotechnology of Zhejiang Province, School of Marine Science, Ningbo University, Ningbo, Zhejiang, 315211, China.
| | - Wei-Zhong Chen
- Key Laboratory of Marine Biotechnology of Zhejiang Province, School of Marine Science, Ningbo University, Ningbo, Zhejiang, 315211, China.
| | - Xing-Wei Wang
- Key Laboratory of Marine Biotechnology of Zhejiang Province, School of Marine Science, Ningbo University, Ningbo, Zhejiang, 315211, China.
| | - Cheng-Xu Zhou
- College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, Zhejiang, 315211, China.
| | - Hai-Bo Jiang
- Key Laboratory of Marine Biotechnology of Zhejiang Province, School of Marine Science, Ningbo University, Ningbo, Zhejiang, 315211, China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, Guangdong, 519080, China.
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Ye X, Wu H, Liu J, Xiang J, Feng Y, Liu Q. One-pot diagnostic methods based on CRISPR/Cas and Argonaute nucleases: strategies and perspectives. Trends Biotechnol 2024:S0167-7799(24)00156-2. [PMID: 39034177 DOI: 10.1016/j.tibtech.2024.06.009] [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: 02/28/2024] [Revised: 05/27/2024] [Accepted: 06/18/2024] [Indexed: 07/23/2024]
Abstract
CRISPR/Cas and Argonaute (Ago) proteins, which target specific nucleic acid sequences, can be applied as diagnostic tools. Despite high specificity and efficiency, achieving sensitive detection often necessitates a preamplification step that involves opening the lid and multistep operation, which may elevate the risk of contamination and prove inadequate for point-of-care testing. Hence, various one-pot detection strategies have been developed that enable preamplification and sensing in a single operation. We outline the challenges of one-pot detection with Cas and Ago proteins, present several main implementation strategies, and discuss future prospects. This review offers comprehensive insights into this vital field and explores potential improvements to detection methods that will be beneficial for human health.
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Affiliation(s)
- Xingyu Ye
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Haoyang Wu
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Jinghan Liu
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Jiayi Xiang
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yan Feng
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China.
| | - Qian Liu
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China.
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Liu J, Fu R, Zhang S, Hou J, Ma H, Hu S, Li H, Zhang Y, Wang W, Qiao B, Zang B, Min X, Zhang F, Du J, Yan S. Rapid and multi-target genotyping of Helicobacter pylori with digital microfluidics. Biosens Bioelectron 2024; 256:116282. [PMID: 38626615 DOI: 10.1016/j.bios.2024.116282] [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: 01/14/2024] [Revised: 03/18/2024] [Accepted: 04/08/2024] [Indexed: 04/18/2024]
Abstract
Helicobacter pylori (H. pylori) infection correlates closely with gastric diseases such as gastritis, ulcers, and cancer, influencing more than half of the world's population. Establishing a rapid, precise, and automated platform for H. pylori diagnosis is an urgent clinical need and would significantly benefit therapeutic intervention. Recombinase polymerase amplification (RPA)-CRISPR recently emerged as a promising molecular diagnostic assay due to its rapid detection capability, high specificity, and mild reaction conditions. In this work, we adapted the RPA-CRISPR assay on a digital microfluidics (DMF) system for automated H. pylori detection and genotyping. The system can achieve multi-target parallel detection of H. pylori nucleotide conservative genes (ureB) and virulence genes (cagA and vacA) across different samples within 30 min, exhibiting a detection limit of 10 copies/rxn and no false positives. We further conducted tests on 80 clinical saliva samples and compared the results with those derived from real-time quantitative polymerase chain reaction, demonstrating 100% diagnostic sensitivity and specificity for the RPA-CRISPR/DMF method. By automating the assay process on a single chip, the DMF system can significantly reduce the usage of reagents and samples, minimize the cross-contamination effect, and shorten the reaction time, with the additional benefit of losing the chance of experiment failure/inconsistency due to manual operations. The DMF system together with the RPA-CRISPR assay can be used for early detection and genotyping of H. pylori with high sensitivity and specificity, and has the potential to become a universal molecular diagnostic platform.
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Affiliation(s)
- Jinsong Liu
- Department of Laboratory Medicine, Affiliated Hospital of Zunyi Medical University, Zunyi, 563006, China; College of Laboratory Medicine, Zunyi Medical University, Zunyi, 563000, China
| | - Rongxin Fu
- School of Medical Technology, Beijing Institute of Technology, Beijing, 100081, China; Engineering Research Center of Integrated Acousto-opto-electronic Microsystems, Ministry of Education of China, Beijing, 100081, China
| | - Shuailong Zhang
- School of Integrated Circuits and Electronic, Beijing Institute of Technology, Beijing, 100081, China; Engineering Research Center of Integrated Acousto-opto-electronic Microsystems, Ministry of Education of China, Beijing, 100081, China.
| | - Jialu Hou
- School of Medical Technology, Beijing Institute of Technology, Beijing, 100081, China
| | - Hanbin Ma
- CAS Key Laboratory of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, 215163, China
| | - Siyi Hu
- CAS Key Laboratory of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, 215163, China
| | - Hang Li
- School of Medical Technology, Beijing Institute of Technology, Beijing, 100081, China; Engineering Research Center of Integrated Acousto-opto-electronic Microsystems, Ministry of Education of China, Beijing, 100081, China
| | - Yanli Zhang
- Department of Gastroenterology, China-Japan Friendship Hospital, Beijing, 100029, China
| | - Weian Wang
- Department of Gastroenterology, The Third Medical Center of People's Liberation Army (PLA) General Hospital, Beijing, 100039, China
| | - Bokang Qiao
- Beijing Anzhen Hospital, Capital Medical University, Beijing, 100029, China; Beijing Institute of Heart, Lung and Vascular Diseases, Key Laboratory of Remodeling-Related Cardiovascular Diseases, Beijing, 100029, China
| | - Baisheng Zang
- Zhejiang Anji GeneDetective Medical Technology Co. Ltd., Anji, 313300, China
| | - Xun Min
- Department of Laboratory Medicine, Affiliated Hospital of Zunyi Medical University, Zunyi, 563006, China; College of Laboratory Medicine, Zunyi Medical University, Zunyi, 563000, China
| | - Feng Zhang
- Department of Laboratory Medicine, Affiliated Hospital of Zunyi Medical University, Zunyi, 563006, China; College of Laboratory Medicine, Zunyi Medical University, Zunyi, 563000, China
| | - Jie Du
- Beijing Anzhen Hospital, Capital Medical University, Beijing, 100029, China; Beijing Institute of Heart, Lung and Vascular Diseases, Key Laboratory of Remodeling-Related Cardiovascular Diseases, Beijing, 100029, China.
| | - Shengkai Yan
- Department of Laboratory Medicine, Affiliated Hospital of Zunyi Medical University, Zunyi, 563006, China; College of Laboratory Medicine, Zunyi Medical University, Zunyi, 563000, China.
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Zeng Q, Zhou M, Deng W, Gao Q, Li Z, Wu L, Liang D. Sensitive and visual detection of SARS-CoV-2 using RPA-Cas12a one-step assay with ssDNA-modified crRNA. Anal Chim Acta 2024; 1309:342693. [PMID: 38772660 DOI: 10.1016/j.aca.2024.342693] [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: 01/12/2024] [Revised: 05/03/2024] [Accepted: 05/04/2024] [Indexed: 05/23/2024]
Abstract
BACKGROUND CRISPR-Cas12a based one-step assays are widely used for nucleic acid detection, particularly for pathogen detection. However, the detection capability of the one-step assay is reduced because the Cas12a protein competes with the isothermal amplification enzymes for the target DNA and cleaves it. Therefore, the key to improving the sensitivity of the one-step assay is to address the imbalance between isothermal amplification and CRISPR detection. In previous study, we developed a Cas12a one-step assay using single-stranded DNA (ssDNA)-modified crRNA (mD-crRNA) and applied this method for the detection of pathogenic DNA. RESULTS Here, we utilized mD-crRNA to establish a sensitive one-step assay that enables the visual detection of SARS-CoV-2 under ultraviolet light, achieving a detection limit of 5 aM without cross-reactivity. The sensitivity of mD-crRNA in the one-step assay was 100-fold higher than that of wild-type crRNA. Mechanistic studies revealed that the addition of ssDNA at the 3' end of mD-crRNA attenuates the binding affinity between the Cas12a-mD-crRNA complex and the target DNA. Consequently, this reduction in binding affinity decreases the cis-cleavage activity of Cas12a, mitigating its cleavage of the target DNA in the one-step assay. As a result, there is an augmentation in the amplification and accumulation of target DNA, thereby enhancing detection sensitivity. In the clinical testing of 40 SARS-CoV-2 RNA samples, the concordance between the results of the one-step assay and known qPCR results was 97.5 %. SIGNIFICANCE The one-step assay using mD-crRNA proves to be highly sensitive and specificity and visually effective for the detection of SARS-CoV-2. Our study delves into the application of the mD-crRNA-mediated one-step assay in nucleic acid detection and its associated reaction mechanism. This holds great significance in addressing the inherent incompatibility issues between isothermal amplification and CRISPR detection.
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Affiliation(s)
- Qinlong Zeng
- Center for Medical Genetics & Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, 410078, China
| | - Miaojin Zhou
- MOE Key Lab of Rare Pediatric Diseases, Department of Cell Biology and Genetics, School of Basic Medical Sciences, University of South China, Hengyang, 421200, China
| | - Weiheng Deng
- Center for Medical Genetics & Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, 410078, China
| | - Qian Gao
- Department of Clinical Laboratory, Xiangya Hospital, Central South University, Changsha, 410078, China
| | - Zhuo Li
- Center for Medical Genetics & Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, 410078, China.
| | - Lingqian Wu
- Center for Medical Genetics & Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, 410078, China.
| | - Desheng Liang
- Center for Medical Genetics & Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, 410078, China.
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Hu H, Liu L, Wei XY, Duan JJ, Deng JY, Pei DS. Revolutionizing aquatic eco-environmental monitoring: Utilizing the RPA-Cas-FQ detection platform for zooplankton. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 929:172414. [PMID: 38631624 DOI: 10.1016/j.scitotenv.2024.172414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 03/15/2024] [Accepted: 04/10/2024] [Indexed: 04/19/2024]
Abstract
The integration of recombinase polymerase amplification (RPA) with CRISPR/Cas technology has revolutionized molecular diagnostics and pathogen detection due to its unparalleled sensitivity and trans-cleavage ability. However, its potential in the ecological and environmental monitoring scenarios for aquatic ecosystems remains largely unexplored, particularly in accurate qualitative/quantitative detection, and its actual performance in handling complex real environmental samples. Using zooplankton as a model, we have successfully optimized the RPA-CRISPR/Cas12a fluorescence detection platform (RPA-Cas-FQ), providing several crucial "technical tips". Our findings indicate the sensitivity of CRISPR/Cas12a alone is 5 × 109 copies/reaction, which can be dramatically increased to 5 copies/reaction when combined with RPA. The optimized RPA-Cas-FQ enables reliable qualitative and semi-quantitative detection within 50 min, and exhibits a good linear relationship between fluorescence intensity and DNA concentration (R2 = 0.956-0.974***). Additionally, we developed a rapid and straightforward identification procedure for single zooplankton by incorporating heat-lysis and DNA-barcode techniques. We evaluated the platform's effectiveness using real environmental DNA (eDNA) samples from the Three Gorges Reservoir, confirming its practicality. The eDNA-RPA-Cas-FQ demonstrated strong consistency (Kappa = 0.43***) with eDNA-Metabarcoding in detecting species presence/absence in the reservoir. Furthermore, the two semi-quantitative eDNA technologies showed a strong positive correlation (R2 = 0.58-0.87***). This platform also has the potential to monitor environmental pollutants by selecting appropriate indicator species. The novel insights and methodologies presented in this study represent a significant advancement in meeting the complex needs of aquatic ecosystem protection and monitoring.
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Affiliation(s)
- Huan Hu
- Chongqing Jiaotong University, Chongqing 400074, China; Chongqing Institute of Green and Intelligent Technology, Chongqing School of University of Chinese Academy of Sciences, Chinese Academy of Sciences, Chongqing 400714, China
| | - Li Liu
- Key Laboratory of Engineering Biology for Low-Carbon Manufacturing, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China
| | - Xing-Yi Wei
- Chongqing Jiaotong University, Chongqing 400074, China; Chongqing Institute of Green and Intelligent Technology, Chongqing School of University of Chinese Academy of Sciences, Chinese Academy of Sciences, Chongqing 400714, China
| | - Jin-Jing Duan
- Chongqing Miankai Biotechnology Research Institute Co., Ltd., Chongqing 400025, China; School of Public Health, Chongqing Medical University, Chongqing 400016, China
| | - Jiao-Yun Deng
- School of Public Health, Chongqing Medical University, Chongqing 400016, China
| | - De-Sheng Pei
- School of Public Health, Chongqing Medical University, Chongqing 400016, China.
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Rong F, Wang H, Tang X, Xing J, Sheng X, Chi H, Zhan W. The development of RT-RPA and CRISPR-Cas12a based assay for sensitive detection of infectious hematopoietic necrosis virus (IHNV). J Virol Methods 2024; 326:114892. [PMID: 38331220 DOI: 10.1016/j.jviromet.2024.114892] [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: 11/24/2023] [Revised: 01/17/2024] [Accepted: 02/05/2024] [Indexed: 02/10/2024]
Abstract
Infectious hematopoietic necrosis virus (IHNV) is an economically important virus causing significant mortalities among wild and cultured salmonid fish worldwide. Rapid and sensitive diagnostic methods of IHNV are crucial for timely controlling infections. For better detection of IHNV, we have established a detection technology based on the reverse transcription and recombinase polymerase amplification (RT-RPA) and CRISPR/Cas12a to detect the N gene of IHNV in two steps. Following the screening of primer pairs, the reaction temperature and time for RPA were optimized to be 41 °C and 35 min, respectively, and the CRISPR/Cas12a reaction was performed at 37 °C for 15 min. The whole detection procedure including can be accomplished within one hour, with a detection sensitivity of about 9.5 copies/µL. The detection method exhibited high specificity with no cross-reaction to the other Novirhabdoviruses HIRRV and VHSV, allowing naked-eye interpretation of the results through lateral flow or fluorescence under ultraviolet light. Overall, our results demonstrated that the developed RT-RPA-Cas12a-mediated assay is a rapid, specific and sensitive detection method for routine and on-site detection of IHNV, which shows a great application promise for the prevention of IHNV infections.
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Affiliation(s)
- Feixiang Rong
- Laboratory of Pathology and Immunology of Aquatic Animals, KLMME, Ocean University of China, Qingdao 266003, China
| | - Hongsheng Wang
- Laboratory of Pathology and Immunology of Aquatic Animals, KLMME, Ocean University of China, Qingdao 266003, China
| | - Xiaoqian Tang
- Laboratory of Pathology and Immunology of Aquatic Animals, KLMME, Ocean University of China, Qingdao 266003, China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China.
| | - Jing Xing
- Laboratory of Pathology and Immunology of Aquatic Animals, KLMME, Ocean University of China, Qingdao 266003, China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China
| | - Xiuzhen Sheng
- Laboratory of Pathology and Immunology of Aquatic Animals, KLMME, Ocean University of China, Qingdao 266003, China
| | - Heng Chi
- Laboratory of Pathology and Immunology of Aquatic Animals, KLMME, Ocean University of China, Qingdao 266003, China
| | - Wenbin Zhan
- Laboratory of Pathology and Immunology of Aquatic Animals, KLMME, Ocean University of China, Qingdao 266003, China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China
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Meng JN, Xu ZK, Li PR, Zeng X, Liu Y, Xu ZL, Wang J, Ding Y, Shen X. Universal and Naked-Eye Diagnostic Platform for Emetic Bacillus cereus Based on RPA-Assisted CRISPR/Cas12a. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:8823-8830. [PMID: 38578074 DOI: 10.1021/acs.jafc.3c06744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/06/2024]
Abstract
Emetic Bacillus cereus (B. cereus), which can cause emetic food poisoning and in some cases even fulminant liver failure and death, has aroused widespread concern. Herein, a universal and naked-eye diagnostic platform for emetic B. cereus based on recombinase polymerase amplification (RPA)-assisted CRISPR/Cas12a was developed by targeting the cereulide synthetase biosynthetic gene (cesB). The diagnostic platform enabled one-pot detection by adding components at the bottom and cap of the tube separately. The visual limit of detection of RPA-CRISPR/Cas12a for gDNA and cells of emetic B. cereus was 10-2 ng μL-1 and 102 CFU mL-1, respectively. Meanwhile, it maintained the same sensitivity in the rice, milk, and cooked meat samples even if the gDNA was extracted by simple boiling. The whole detection process can be finished within 40 min, and the single cell of emetic B. cereus was able to be recognized through enrichment for 2-5 h. The good specificity, high sensitivity, rapidity, and simplicity of the RPA-assisted CRISPR/Cas12a diagnostic platform made it serve as a potential tool for the on-site detection of emetic B. cereus in food matrices. In addition, the RPA-assisted CRISPR/Cas12a assay is the first application in emetic B. cereus detection.
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Affiliation(s)
- Jing-Nan Meng
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, China
- College of Food Engineering, Anhui Science and Technology University, Chuzhou 233100, China
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, China
| | - Ze-Ke Xu
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, China
| | - Peng-Ru Li
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, China
| | - Xi Zeng
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, China
- Guangzhou Institute of Food Inspection, Guangzhou 510410, China
| | - Yingju Liu
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, China
| | - Zhen-Lin Xu
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, China
| | - Juan Wang
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, China
| | - Yu Ding
- Department of Food Science and Technology, Institute of Food Safety and Nutrition, Jinan University, Guangzhou 510632, China
| | - Xing Shen
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, China
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Xu S, Wang X, Wu C, Zhu X, Deng X, Wu Y, Liu M, Huang X, Wu L, Huang H. MscI restriction enzyme cooperating recombinase-aided isothermal amplification for the ultrasensitive and rapid detection of low-abundance EGFR mutations on microfluidic chip. Biosens Bioelectron 2024; 247:115925. [PMID: 38134625 DOI: 10.1016/j.bios.2023.115925] [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: 09/28/2023] [Revised: 12/07/2023] [Accepted: 12/10/2023] [Indexed: 12/24/2023]
Abstract
The detection of low-abundance mutation genes of the epidermal growth factor receptor (EGFR) exon 21 (EGFR L858R) plays a crucial role in the diagnosis of non-small cell lung cancer (NSCLC), as it enables early cancer detection and facilitates the development of treatment strategies. A detection platform was developed by combining the MscI restriction enzyme with the recombinase-aided isothermal amplification (RAA) technique (MRE-RAA). During the RAA process, "TGG^CCA" site of the wild-type genes was cleaved by the MscI restriction enzyme, while only the low-abundance mutation genes underwent amplification. Notably, when the RAA product was combined with CRISPR-Cas system, the sensitivity of detecting the EGFR L858R mutation increased by up to 1000-fold for addition of the MscI restriction enzyme. This achievement marked the first instance of attaining an analytical sensitivity of 0.001%. Furthermore, a disk-shaped microfluidic chip was developed to automate pretreatment while concurrently analyzing four blood samples. The microfluidic features of the chip include DNA extraction, MRE-RAA, and CRISPR-based detection. The fluorescence signal is employed for detection in the microfluidic chip, which is visible to the naked eye upon exposure to blue light irradiation. Furthermore, this platform has the capability to facilitate early diagnosis for various types of cancer by enabling high-sensitivity detection of low-abundance mutation genes.
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Affiliation(s)
- Shiqi Xu
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, 210023, China
| | - Xinjie Wang
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, 518120, China
| | - Chengyuan Wu
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, 210023, China
| | - Xueting Zhu
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, 210023, China
| | - Xinyi Deng
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, 210023, China
| | - Yue Wu
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, 210023, China
| | - Ming Liu
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, 510120, China
| | | | - Lina Wu
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, 210023, China.
| | - He Huang
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, 210023, China.
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10
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Ma L, Zhu M, Meng Q, Wang Y, Wang X. Real-time detection of Seneca Valley virus by one-tube RPA-CRISPR/Cas12a assay. Front Cell Infect Microbiol 2024; 13:1305222. [PMID: 38259970 PMCID: PMC10800940 DOI: 10.3389/fcimb.2023.1305222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Accepted: 12/15/2023] [Indexed: 01/24/2024] Open
Abstract
Introduction Senecavirus A (SVA) is a highly contagious virus that causes vesicular disease in pigs. At present, laboratory detection methods, such as virus isolation and polymerase chain reaction (PCR), required precision instruments and qualified personnel, making them unsuitable for point-of-care tests (POCT). Fortunately, the emergence of CRISPR/Cas system has provided new opportunities for fast and efficient pathogen detection. Methods This study successfully developed a precise and sensitive detection platform for diagnosing SVA by combining the CRISPR system with recombinase polymerase amplification (RPA). Results The minimum detection limit of the assay was 10 copies of the SVA genome. Meanwhile, the assay demonstrated high specificity. To validate the effectiveness of this system, we tested 85 swine clinical samples and found that the fluorescence method had a 100% coincidence rate compared to RT-qPCR. Discussion Overall, the RPA-CRISPR/Cas12a assay established in our study is a highly effective method for detecting SVA and holds great potential for practical applications in the resource-limited settings.
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Affiliation(s)
- Lei Ma
- School of Biotechnology and Food Engineering, Anyang Institute of Technology, Anyang, China
- College of Life Science, Henan University, Kaifeng, China
| | - Mengjie Zhu
- School of Biotechnology and Food Engineering, Anyang Institute of Technology, Anyang, China
| | - Qingfeng Meng
- Testing Technology R&D Department, Shanghai Kaiwosha Biotechnology Co., Ltd, Shanghai, China
| | - Yao Wang
- School of Biotechnology and Food Engineering, Anyang Institute of Technology, Anyang, China
| | - Xueping Wang
- School of Biotechnology and Food Engineering, Anyang Institute of Technology, Anyang, China
- College of Life Science, Henan University, Kaifeng, China
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11
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Dorigan AF, Moreira SI, da Silva Costa Guimarães S, Cruz-Magalhães V, Alves E. Target and non-target site mechanisms of fungicide resistance and their implications for the management of crop pathogens. PEST MANAGEMENT SCIENCE 2023; 79:4731-4753. [PMID: 37592727 DOI: 10.1002/ps.7726] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 06/14/2023] [Accepted: 08/18/2023] [Indexed: 08/19/2023]
Abstract
Fungicides are indispensable for high-quality crops, but the rapid emergence and evolution of fungicide resistance have become the most important issues in modern agriculture. Hence, the sustainability and profitability of agricultural production have been challenged due to the limited number of fungicide chemical classes. Resistance to site-specific fungicides has principally been linked to target and non-target site mechanisms. These mechanisms change the structure or expression level, affecting fungicide efficacy and resulting in different and varying resistance levels. This review provides background information about fungicide resistance mechanisms and their implications for developing anti-resistance strategies in plant pathogens. Here, our purpose was to review changes at the target and non-target sites of quinone outside inhibitor (QoI) fungicides, methyl-benzimidazole carbamate (MBC) fungicides, demethylation inhibitor (DMI) fungicides, and succinate dehydrogenase inhibitor (SDHI) fungicides and to evaluate if they may also be associated with a fitness cost on crop pathogen populations. The current knowledge suggests that understanding fungicide resistance mechanisms can facilitate resistance monitoring and assist in developing anti-resistance strategies and new fungicide molecules to help solve this issue. © 2023 Society of Chemical Industry.
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Affiliation(s)
| | | | | | | | - Eduardo Alves
- Department of Plant Pathology, Federal University of Lavras, Lavras, Brazil
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12
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Liu Y, Lin L, Wei H, Luo Q, Yang P, Liu M, Wang Z, Zou X, Zhu H, Zha G, Sun J, Zheng Y, Lin M. Design and development of a rapid meat detection system based on RPA-CRISPR/Cas12a-LFD. Curr Res Food Sci 2023; 7:100609. [PMID: 37860145 PMCID: PMC10582345 DOI: 10.1016/j.crfs.2023.100609] [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: 05/15/2023] [Revised: 09/12/2023] [Accepted: 10/02/2023] [Indexed: 10/21/2023] Open
Abstract
In recent years, meat adulteration safety incidents have occurred frequently, triggering widespread attention and discussion. Although there are a variety of meat quality identification methods, conventional assays require high standards for personnel and experimental conditions and are not suitable for on-site testing. Therefore, there is an urgent need for a rapid, sensitive, high specificity and high sensitivity on-site meat detection method. This study is the first to apply RPA combined with CRISPR/Cas12a technology to the field of multiple meat identification. The system developed by parameter optimization can achieve specific detection of chicken, duck, beef, pork and lamb with a minimum target sequence copy number as low as 1 × 100 copies/μL for 60 min at a constant temperature. LFD test results can be directly observed with the naked eye, with the characteristics of fast, portable and simple operation, which is extremely in line with current needs. In conclusion, the meat identification RPA-CRISPR/Cas12a-LFD system established in this study has shown promising applications in the field of meat detection, with a profound impact on meat quality, and provides a model for other food safety control programs.
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Affiliation(s)
- Yaqun Liu
- School of Food Engineering and Biotechnology, Hanshan Normal University, Chaozhou, Guangdong, PR China
- Guangdong Provincial Key Laboratory of Functional Substances in Medicinal Edible Resources and Healthcare Products, Chaozhou, Guangdong, PR China
| | - Liyun Lin
- School of Food Engineering and Biotechnology, Hanshan Normal University, Chaozhou, Guangdong, PR China
- Guangdong Provincial Key Laboratory of Functional Substances in Medicinal Edible Resources and Healthcare Products, Chaozhou, Guangdong, PR China
| | - Huagui Wei
- Shool of Laboratory Medicine, Youjiang Medical University for Nationalities, Baise, Guangxi, PR China
| | - Qiulan Luo
- School of Food Engineering and Biotechnology, Hanshan Normal University, Chaozhou, Guangdong, PR China
- Guangdong Provincial Key Laboratory of Functional Substances in Medicinal Edible Resources and Healthcare Products, Chaozhou, Guangdong, PR China
| | - Peikui Yang
- School of Food Engineering and Biotechnology, Hanshan Normal University, Chaozhou, Guangdong, PR China
- Guangdong Provincial Key Laboratory of Functional Substances in Medicinal Edible Resources and Healthcare Products, Chaozhou, Guangdong, PR China
| | - Mouquan Liu
- School of Food Engineering and Biotechnology, Hanshan Normal University, Chaozhou, Guangdong, PR China
- Guangdong Provincial Key Laboratory of Functional Substances in Medicinal Edible Resources and Healthcare Products, Chaozhou, Guangdong, PR China
| | - Zhonghe Wang
- School of Food Engineering and Biotechnology, Hanshan Normal University, Chaozhou, Guangdong, PR China
- Guangdong Provincial Key Laboratory of Functional Substances in Medicinal Edible Resources and Healthcare Products, Chaozhou, Guangdong, PR China
| | - Xianghui Zou
- School of Food Engineering and Biotechnology, Hanshan Normal University, Chaozhou, Guangdong, PR China
- Guangdong Provincial Key Laboratory of Functional Substances in Medicinal Edible Resources and Healthcare Products, Chaozhou, Guangdong, PR China
| | - Hui Zhu
- School of Food Engineering and Biotechnology, Hanshan Normal University, Chaozhou, Guangdong, PR China
- Guangdong Provincial Key Laboratory of Functional Substances in Medicinal Edible Resources and Healthcare Products, Chaozhou, Guangdong, PR China
| | - Guangcai Zha
- School of Food Engineering and Biotechnology, Hanshan Normal University, Chaozhou, Guangdong, PR China
- Guangdong Provincial Key Laboratory of Functional Substances in Medicinal Edible Resources and Healthcare Products, Chaozhou, Guangdong, PR China
| | - Junjun Sun
- School of Food Engineering and Biotechnology, Hanshan Normal University, Chaozhou, Guangdong, PR China
- Guangdong Provincial Key Laboratory of Functional Substances in Medicinal Edible Resources and Healthcare Products, Chaozhou, Guangdong, PR China
| | - Yuzhong Zheng
- School of Food Engineering and Biotechnology, Hanshan Normal University, Chaozhou, Guangdong, PR China
- Guangdong Provincial Key Laboratory of Functional Substances in Medicinal Edible Resources and Healthcare Products, Chaozhou, Guangdong, PR China
- Shool of Laboratory Medicine, Youjiang Medical University for Nationalities, Baise, Guangxi, PR China
| | - Min Lin
- School of Food Engineering and Biotechnology, Hanshan Normal University, Chaozhou, Guangdong, PR China
- Guangdong Provincial Key Laboratory of Functional Substances in Medicinal Edible Resources and Healthcare Products, Chaozhou, Guangdong, PR China
- Shool of Laboratory Medicine, Youjiang Medical University for Nationalities, Baise, Guangxi, PR China
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13
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Tanny T, Sallam M, Soda N, Nguyen NT, Alam M, Shiddiky MJA. CRISPR/Cas-Based Diagnostics in Agricultural Applications. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:11765-11788. [PMID: 37506507 DOI: 10.1021/acs.jafc.3c00913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/30/2023]
Abstract
Pests and disease-causing pathogens frequently impede agricultural production. An early and efficient diagnostic tool is crucial for effective disease management. Clustered regularly interspaced short palindromic repeats (CRISPR) and the CRISPR-associated protein (Cas) have recently been harnessed to develop diagnostic tools. The CRISPR/Cas system, composed of the Cas endonuclease and guide RNA, enables precise identification and cleavage of the target nucleic acids. The inherent sensitivity, high specificity, and rapid assay time of the CRISPR/Cas system make it an effective alternative for diagnosing plant pathogens and identifying genetically modified crops. Furthermore, its potential for multiplexing and suitability for point-of-care testing at the field level provide advantages over traditional diagnostic systems such as RT-PCR, LAMP, and NGS. In this review, we discuss the recent developments in CRISPR/Cas based diagnostics and their implications in various agricultural applications. We have also emphasized the major challenges with possible solutions and provided insights into future perspectives and potential applications of the CRISPR/Cas system in agriculture.
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Affiliation(s)
- Tanzena Tanny
- School of Environment and Science (ESC), Griffith University, Nathan, QLD 4111, Australia
- Queensland Micro and Nanotechnology Centre (QMNC), Griffith University, Nathan, QLD 4111, Australia
| | - Mohamed Sallam
- School of Environment and Science (ESC), Griffith University, Nathan, QLD 4111, Australia
- Queensland Micro and Nanotechnology Centre (QMNC), Griffith University, Nathan, QLD 4111, Australia
| | - Narshone Soda
- Queensland Micro and Nanotechnology Centre (QMNC), Griffith University, Nathan, QLD 4111, Australia
| | - Nam-Trung Nguyen
- Queensland Micro and Nanotechnology Centre (QMNC), Griffith University, Nathan, QLD 4111, Australia
| | - Mobashwer Alam
- Queensland Alliance for Agriculture & Food Innovation, The University of Queensland, Mayers Road, Nambour, QLD 4560, Australia
| | - Muhammad J A Shiddiky
- School of Environment and Science (ESC), Griffith University, Nathan, QLD 4111, Australia
- Queensland Micro and Nanotechnology Centre (QMNC), Griffith University, Nathan, QLD 4111, Australia
- Rural Health Research Institute, Charles Sturt University, Orange, NSW 2800, Australia
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14
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Wang P, Guo B, Zhang X, Wang Y, Yang G, Shen H, Gao S, Zhang L. One-Pot Molecular Diagnosis of Acute Hepatopancreatic Necrosis Disease by Recombinase Polymerase Amplification and CRISPR/Cas12a with Specially Designed crRNA. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:6490-6498. [PMID: 37014765 DOI: 10.1021/acs.jafc.2c08689] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Acute hepatopancreatic necrosis disease (AHPND) is one of the most devastating diseases in aquaculture, causing significant economic losses in seafood supplies worldwide. Early detection is critical for its prevention, which requires reliable and fast-responding diagnosis tools with point-of-care testing (POCT) capacity. Recombinase polymerase amplification (RPA) has been combined with CRISPR/Cas12a for AHPND diagnosis with a two-step procedure, but the operation is inconvenient and has the risk of carryover contamination. Here, we develop an RPA-CRISPR one-pot assay that integrates RPA and CRISPR/Cas12a cleavage into simultaneous reactions. Using the special design of crRNA, which is based on suboptimal protospacer adjacent motifs (PAM), RPA and Cas12a are made compatible in one pot. The assay is highly specific with a good sensitivity of 102 copies/reaction. This study provides a new choice for AHPND diagnosis with a POCT facility and sets a good example for developing RPA-CRISPR one-pot molecular diagnosis assays.
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Affiliation(s)
- Pei Wang
- School of Food Science and Pharmaceutical Engineering, School of Life Sciences, Nanjing Normal University, Nanjing 210023, China
| | - Bo Guo
- Jiangsu Key Laboratory of Marine Biological Resources and Environment, Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, Lianyungang 222005, China
| | - Xue Zhang
- Jiangsu Key Laboratory of Marine Biological Resources and Environment, Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, Lianyungang 222005, China
| | - Yue Wang
- Jiangsu Key Laboratory of Marine Biological Resources and Environment, Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, Lianyungang 222005, China
| | - Guang Yang
- Jiangsu Key Laboratory of Marine Biological Resources and Environment, Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, Lianyungang 222005, China
| | - Hui Shen
- Jiangsu Institute of Oceanology and Marine Fisheries, Nantong 226007, China
| | - Song Gao
- Jiangsu Key Laboratory of Marine Biological Resources and Environment, Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, Lianyungang 222005, China
| | - Lihui Zhang
- School of Food Science and Pharmaceutical Engineering, School of Life Sciences, Nanjing Normal University, Nanjing 210023, China
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