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Gao S, Guo J, Wang T, Xu L. A rapid visual detection method for Sugarcane streak mosaic virus based on one-tube RPA-CRISPR/Cas12a. Talanta 2025; 291:127888. [PMID: 40049000 DOI: 10.1016/j.talanta.2025.127888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2024] [Revised: 02/24/2025] [Accepted: 03/02/2025] [Indexed: 03/24/2025]
Abstract
Sugarcane is the most important crop for sugar production. Sugarcane streak mosaic virus (SCSMV) triggered sugarcane mosaic disease can lead to substantial reductions in both yield and sucrose content. In the process of disease prevention and control, target pathogen detection technology is indispensable. However, traditional detection methods are time-consuming and require expensive equipment, making them less efficient for timely disease control and unfavorable to disease resistance breeding. Here, we introduce a novel detection technology that combines recombinase polymerase amplification (RPA) with CRISPR-Cas12a. The method utilizes crude extracts from sugarcane leaves as the reaction template, significantly simplifying and expediting the preparation process. By combining RPA and CRISPR-Cas12a in a single reaction tube, the risk of aerosol contamination has decreased markedly. The entire process, from sample preparation to result interpretation, only takes 50 min, and the reaction equipment only a water bath pot, and results can be blue light spectrometer or UV flashlight assessed visually. Importantly, the method demonstrates high sensitivity, detecting a minimum of 50 copies of the plasmid, which surpasses the sensitivity of reverse transcription polymerase chain reaction (RT-PCR) and is comparable to quantitative RT-PCR (RT-qPCR). The method exhibits excellent specificity, showing no cross-reactivity with other common sugarcane viruses, including Sugarcane mosaic virus, Sugarcane yellow leaf virus, and Sorghum mosaic virus. The practicality of this technique was validated through the detection of leaf crude extracts from 40 field samples. The detection results were consistent with those obtained from RT-PCR and RT-qPCR using leaf RNA as the template, indicating its suitability for laboratory detection and field applications.
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Affiliation(s)
- Shuai Gao
- National Engineering Research Center for Sugarcane, Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Jinlong Guo
- National Engineering Research Center for Sugarcane, Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Ting Wang
- National Engineering Research Center for Sugarcane, Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
| | - Liping Xu
- National Engineering Research Center for Sugarcane, Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
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2
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Liu S, Yang Y, Li X, Choi JW, Guo J, Luo H, Li C. Development of a single-tube RPA/CRISPR-cas12a detection platform for monkeypox virus. Biosens Bioelectron 2025; 278:117221. [PMID: 40054154 DOI: 10.1016/j.bios.2025.117221] [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: 11/21/2024] [Revised: 01/17/2025] [Accepted: 01/30/2025] [Indexed: 03/17/2025]
Abstract
Monkeypox is a zoonotic disease caused by the monkeypox virus (MPXV), with outbreaks primarily occurring in West and Central Africa. The recent global MPXV outbreak underscores the urgent need for effective detection methods. Currently, qPCR is considered the gold standard for MPXV detection; however, it requires specialized personnel and costly equipment. This study introduces a CRISPR-Cas12a-based detection system targeting the MPXV A27L gene, achieving a detection limit as low as 10 aM. This system exhibits high specificity, with no cross-reactivity with other orthopoxviruses, and delivers results in under 40 min. To support point-of-care testing (POCT), we developed a lateral flow assay (LFA) strip for easy result visualization. The detection system was validated using six different clinical sample types, revealing that herpes fluid and saliva are the most suitable sources. The findings of this study align with qPCR results. Additionally, we lyophilized the RPA and CRISPR reagents to improve transport, storage, and field deployment. In conclusion, this study presents a reliable molecular diagnostic approach for early MPXV detection and point-of-care testing, contributing to epidemic prevention and control.
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Affiliation(s)
- Shan Liu
- Sichuan Provincial Key Laboratory for Human Disease Gene Study, Department of Medical Genetics, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, 610072, China
| | - Yang Yang
- Shenzhen Key Laboratory of Pathogen and Immunity, Shenzhen Clinical Research Center for Infectious Disease, Shenzhen Third People's Hospital, Second Hospital Affiliated to Southern University of Science and Technology, Shenzhen, Guangdong, 518112, China
| | - Xue Li
- Tianfu Jincheng Laboratory, City of Future Medicine, Chengdu, 641400, China; Juxintang (Chengdu) Biotechnology Co., Ltd., Chengdu, 641400, China
| | - Jeong-Woo Choi
- Department of Chemical and Biomolecular Engineering, Sogang University, Seoul, 04107, Republic of Korea
| | - Jinhong Guo
- School of Sensing Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China.
| | - Hongzhi Luo
- Department of Experimental Medicine, Jintang First People's Hospital·West China Hospital Sichuan University Jintang Hospital, Chengdu, 610400, China.
| | - Chenzhong Li
- Tianfu Jincheng Laboratory, City of Future Medicine, Chengdu, 641400, China; Juxintang (Chengdu) Biotechnology Co., Ltd., Chengdu, 641400, China; Biomedical Engineering, School of Medicine, The Chinese University of Hong Kong, Shenzhen, 518172, China.
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3
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Li X, Han Z, Guo P, Zhang X, Hu Y, Cao J. LbCas12a-based DNA POCT facilitates fast genotyping on farm. Talanta 2025; 287:127672. [PMID: 39923676 DOI: 10.1016/j.talanta.2025.127672] [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: 09/05/2024] [Revised: 01/27/2025] [Accepted: 01/29/2025] [Indexed: 02/11/2025]
Abstract
Clustered regularly interspaced short palindromic repeats/CRISPR-associated protein 12a (CRISPR/Cas12a) detection system is now widely used for nucleic acid detection and disease diagnosis. However, there are still fewer detections for single nucleotide polymorphisms (SNPs) and limited diversified detection systems for pathogen and SNP sites detection, which greatly limits their applications. Obviously, the development of a more diversified and convenient suite of detection tools is essential to unlock the full potential of CRISPR/Cas12a technology and to expand its applications across a wider range of scenarios. We have successfully developed an integrated CRISPR/Cas12a assay system. This system introduces crRNA during protein expression, reducing the number of steps and reaction time by adding only a fluorescent reporter gene and target DNA during subsequent detection. It enables on-site visualization of the assay in combination with a Recombinase polymerase amplification (RPA) reaction. Combined with the RPA reaction, we are able to rapidly detect African swine fever virus (ASFV) pathogens with high specificity. The system also enables genotyping of the SNP site of the porcine prolificacy-associated estrogen receptor (ESR) gene and the sheep prolificacy-associated Fecundity booroola (FecB) gene. Visualization is possible up to a final concentration of 3 nM, and effective differentiation of low concentrations within the concentration range of the assay. The integrated CRISPR/Cas12a assay system we developed has a robust design that ensures high-fidelity genotyping and pathogen detection are no longer restricted to the lab, allowing for rapid field analysis, which is crucial for timely interventions in agricultural and clinical settings. In addition, it has the advantages of low cost, easy operation and visualization of results.
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Affiliation(s)
- Xiaolong Li
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China; Key Laboratory of Swine Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Huazhong Agricultural University, Wuhan, 430070, China; Key Laboratory of Smart Farming for Agricultural Animals, College of Informatics, Huazhong Agricultural University, Wuhan, 430070, China
| | - Zhentao Han
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China; Key Laboratory of Swine Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Huazhong Agricultural University, Wuhan, 430070, China
| | - Peihua Guo
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China; Key Laboratory of Swine Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Huazhong Agricultural University, Wuhan, 430070, China
| | - Xiaoqian Zhang
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China; Key Laboratory of Swine Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Huazhong Agricultural University, Wuhan, 430070, China
| | - Yixuan Hu
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China; Key Laboratory of Swine Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Huazhong Agricultural University, Wuhan, 430070, China
| | - Jianhua Cao
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China; Key Laboratory of Swine Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Huazhong Agricultural University, Wuhan, 430070, China.
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Jin Y, Fu Y, Liu Q, Li S, Zeng Y, Fu L, Zhang Y. RH-RPA: A Rapid and Highly Sensitive Assay for Nucleic Acid Detection Based on RNase HII Combined with Recombinase Polymerase Amplification. Anal Chem 2025; 97:9220-9227. [PMID: 40273346 DOI: 10.1021/acs.analchem.4c06578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2025]
Abstract
Currently, RPA-exo and RPA-nfo are the primary methods for RPA/RT-RPA probe assays, both of which have been widely applied to the detection of various targets. However, RPA-nfo exhibits lower sensitivity compared with the exo probe method, while RPA-exo lacks the capability for equipment-free visualization inherent to RPA-nfo. Both of the approaches mentioned above limit the broader application of RPA/RT-RPA probe assays. To address those limitations, we have developed a novel recombinase polymerase amplification (RPA) combined with an E. coli RNase HII assay (RH-RPA). This approach supports both fluorescence signal detection and lateral-flow strip readouts. Due to the high efficiency and specificity of E. coli RNase HII in recognizing and cleaving targets, this method serves as a rapid and accurate molecular diagnostic platform. Under the fluorescence detection mode, RH-RPA achieves a limit of detection as low as 10 copies per reaction for both DNA and RNA within 20 min. Additionally, the lateral-flow strip mode enables the detection of as few as 5 copies per reaction of nucleic acids within 20 min. In clinical sample analysis, the RT RH-RPA demonstrated 100% accuracy in detecting the influenza A virus, underscoring its reliability in practical diagnostics. These findings highlight the stable specificity, rapid performance, high sensitivity, and cost-effectiveness of the RH-RPA methods, showcasing their potential as promising tools for point-of-care nucleic acid detection.
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Affiliation(s)
- Yuting Jin
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, Engineering Research Centre of Molecular Diagnostics of the Ministry of Education, National Institute for Data Science in Health and Medicine Engineering, School of Life Sciences, Faculty of Medicine and Life Sciences, Shenzhen Research Institute of Xiamen University, Xiamen University, Xiamen, Fujian 361102, China
| | - Yangnan Fu
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, Engineering Research Centre of Molecular Diagnostics of the Ministry of Education, National Institute for Data Science in Health and Medicine Engineering, School of Life Sciences, Faculty of Medicine and Life Sciences, Shenzhen Research Institute of Xiamen University, Xiamen University, Xiamen, Fujian 361102, China
| | - Qingyang Liu
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, Engineering Research Centre of Molecular Diagnostics of the Ministry of Education, National Institute for Data Science in Health and Medicine Engineering, School of Life Sciences, Faculty of Medicine and Life Sciences, Shenzhen Research Institute of Xiamen University, Xiamen University, Xiamen, Fujian 361102, China
| | - Suhang Li
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, Engineering Research Centre of Molecular Diagnostics of the Ministry of Education, National Institute for Data Science in Health and Medicine Engineering, School of Life Sciences, Faculty of Medicine and Life Sciences, Shenzhen Research Institute of Xiamen University, Xiamen University, Xiamen, Fujian 361102, China
| | - Yingzhou Zeng
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, Engineering Research Centre of Molecular Diagnostics of the Ministry of Education, National Institute for Data Science in Health and Medicine Engineering, School of Life Sciences, Faculty of Medicine and Life Sciences, Shenzhen Research Institute of Xiamen University, Xiamen University, Xiamen, Fujian 361102, China
| | - Lijuan Fu
- Department of Infection, Xiang'an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen Quality Control Center of Infectious Diseases, Xiamen, Fujian 361000, China
| | - Yongyou Zhang
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, Engineering Research Centre of Molecular Diagnostics of the Ministry of Education, National Institute for Data Science in Health and Medicine Engineering, School of Life Sciences, Faculty of Medicine and Life Sciences, Shenzhen Research Institute of Xiamen University, Xiamen University, Xiamen, Fujian 361102, China
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5
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Marnis H, Syahputra K. Advancing fish disease research through CRISPR-Cas genome editing: Recent developments and future perspectives. FISH & SHELLFISH IMMUNOLOGY 2025; 160:110220. [PMID: 39988220 DOI: 10.1016/j.fsi.2025.110220] [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: 11/13/2024] [Revised: 02/18/2025] [Accepted: 02/20/2025] [Indexed: 02/25/2025]
Abstract
CRISPR-Cas genome editing technology has transformed genetic research, by enabling unprecedented precision in modifying DNA sequences across various organisms, including fish. This review explores the significant advancements and potential uses of CRISPR-Cas technology in the study and management of fish diseases, which pose serious challenges to aquaculture and wild fish populations. Fish diseases cause significant economic losses and environmental impacts, therefore effective disease control a top priority. The review highlights the pivotal role of CRISPR-Cas in identifying disease-associated genes, which is critical to comprehending the genetic causes of disease susceptibility and resistance. Some studies have reported key genetic factors that influence disease outcomes, using targeted gene knockouts and modifications to pave the way for the development of disease-resistant fish strains. The creation of such genetically engineered fish holds great promise for enhancing aquaculture sustainability by reducing the reliance on antibiotics and other conventional disease control measures. In addition, CRISPR-Cas has facilitated in-depth studies of pathogen-host interactions, offering new insights into the mechanisms by which pathogens infect and proliferate within their hosts. By manipulating both host and pathogen genes, this technology provides a powerful tool for uncovering the molecular underpinnings of these interactions, leading to the development of more effective treatment strategies. While CRISPR-Cas has shown great promise in fish research, its application remains limited to a few species, primarily model organisms and some freshwater fish. In addition, challenges such as off-target effects, ecological risks, and ethical concerns regarding the release of genetically modified organisms into the environment must be carefully addressed. This review also discusses these challenges and emphasizes the need for robust regulatory frameworks and ongoing research to mitigate risks. Looking forward, the integration of CRISPR-Cas with other emerging technologies, such as multi-omics approaches, promises to further advance our understanding and management of fish diseases. This review concludes by envisioning the future directions of CRISPR-Cas applications in fish health, underscoring its potential to its growing in the field.
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Affiliation(s)
- Huria Marnis
- Research Center for Fishery, National Research and Innovation Agency (BRIN), Cibinong, 16911, Indonesia.
| | - Khairul Syahputra
- Research Center for Fishery, National Research and Innovation Agency (BRIN), Cibinong, 16911, Indonesia; Department of Infectious Diseases and Pathobiology, Vetsuisse Faculty, Institute for Fish and Wildlife Health, University of Bern, Bern, Switzerland
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6
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Chen Q, Wang H, Xu H, Peng Y, Yao B, Chen Z, Yang J, Adeloju S, Chen W. One-pot RPA-CRISPR/Cas12a integrated dual-mode electrochemical lateral flow strip for ultrasensitive and precise detection of Salmonella. Biosens Bioelectron 2025; 285:117529. [PMID: 40378589 DOI: 10.1016/j.bios.2025.117529] [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: 02/12/2025] [Revised: 04/10/2025] [Accepted: 04/29/2025] [Indexed: 05/19/2025]
Abstract
Rapid and accurate screening of pathogenic contamination is essential for timely intervention and infection prevention. In this work, one-pot RPA-CRISPR/Cas12a strategy combined with an innovative electrochemical lateral flow strip (OPRCC-eLFS) was presented for ultrasensitive and precise detection of Salmonella. Highly sensitive dual-mode detection of Salmonella in various samples has been simultaneously achieved with electrochemical detection limit of 3.84 CFU/mL and visual detection limit of 384 CFU/mL, respectively, with improved detection efficiency and prevention of uncapping-related aerosol-contamination. This dual-mode biosensing platform demonstrates exceptional stability, remarkable sensitivity, and robust on-site quantification capability, emphasizing its potential in food safety monitoring and disease prevention.
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Affiliation(s)
- Qi Chen
- Engineering Research Center of Bio-process, MOE, School of Food and Biological Engineering, Intelligent Manufacturing Institute, Hefei University of Technology, Hefei, 230009, PR China
| | - Hang Wang
- Engineering Research Center of Bio-process, MOE, School of Food and Biological Engineering, Intelligent Manufacturing Institute, Hefei University of Technology, Hefei, 230009, PR China
| | - Haoyang Xu
- Engineering Research Center of Bio-process, MOE, School of Food and Biological Engineering, Intelligent Manufacturing Institute, Hefei University of Technology, Hefei, 230009, PR China
| | - Yubo Peng
- Engineering Research Center of Bio-process, MOE, School of Food and Biological Engineering, Intelligent Manufacturing Institute, Hefei University of Technology, Hefei, 230009, PR China
| | - Bangben Yao
- Anhui Province Institute of Product Quality Supervision & Inspection, Hefei, 230051, PR China
| | - Zhaoran Chen
- Anhui Province Institute of Product Quality Supervision & Inspection, Hefei, 230051, PR China
| | - Jiening Yang
- Technical Centre for Animal, Plant and Food Inspection and Quarantine of Shanghai Customs, Shanghai, 200135, PR China
| | - Samuel Adeloju
- School of Chemistry, Monash University, Clayton, Victoria, 3800, Australia.
| | - Wei Chen
- Engineering Research Center of Bio-process, MOE, School of Food and Biological Engineering, Intelligent Manufacturing Institute, Hefei University of Technology, Hefei, 230009, PR China.
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7
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Cheng ZH, Luo XY, Yu SS, Min D, Zhang SX, Li XF, Chen JJ, Liu DF, Yu HQ. Tunable control of Cas12 activity promotes universal and fast one-pot nucleic acid detection. Nat Commun 2025; 16:1166. [PMID: 39885211 PMCID: PMC11782535 DOI: 10.1038/s41467-025-56516-3] [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: 07/24/2024] [Accepted: 01/17/2025] [Indexed: 02/01/2025] Open
Abstract
The CRISPR-based detection methods have been widely applied, yet they remain limited by the non-universal nature of one-pot diagnostic approaches. Here, we report a universal one-pot fluorescent method for the detection of epidemic pathogens, delivering results within 15-20 min. This method uses heparin sodium to precisely tunes the cis-cleavage capability of Cas12 via interference with the Cas12a-crRNA binding process, thereby generating significant fluorescence due to the accumulation of isothermal amplification products. Additionally, this universal assay accommodates both classic and suboptimal PAMs, as well as various Cas12a subtypes such as LbCas12a, AsCas12a, and AapCas12b. Such a robust method demonstrates sensitivity and specificity exceeding 95% in the detection of monkeypox pseudovirus, influenza A virus, and SARS-CoV-2 from saliva or wastewater samples, when compared with qPCR or RT-qPCR. Moreover, the cost of heparin sodium per thousand uses is $0.01 to $0.04 only. Collectively, this universal and fast one-pot approach based on heparin sodium offers potential possibilities for point-of-care testing.
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Affiliation(s)
- Zhou-Hua Cheng
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, 230026, Hefei, China
| | - Xi-Yan Luo
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, 230026, Hefei, China
| | - Sheng-Song Yu
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, 230026, Hefei, China
| | - Di Min
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, 230026, Hefei, China
| | - Shu-Xia Zhang
- Fujian Institute of Hematology, Fujian Provincial Key Laboratory on Hematology, Fujian Medical University Union Hospital, 350001, Fujian, China
| | - Xiao-Fan Li
- Fujian Institute of Hematology, Fujian Provincial Key Laboratory on Hematology, Fujian Medical University Union Hospital, 350001, Fujian, China
| | - Jie-Jie Chen
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, 230026, Hefei, China
| | - Dong-Feng Liu
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, 230026, Hefei, China.
| | - Han-Qing Yu
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, 230026, Hefei, China.
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8
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Rasool HMH, Chen Q, Gong X, Zhou J. CRISPR/Cas system and its application in the diagnosis of animal infectious diseases. FASEB J 2024; 38:e70252. [PMID: 39726403 PMCID: PMC11671863 DOI: 10.1096/fj.202401569r] [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: 07/09/2024] [Revised: 10/26/2024] [Accepted: 12/04/2024] [Indexed: 12/28/2024]
Abstract
Infectious diseases are a serious threat to the existence of animals and humans' life. In the 21st century, the emergence and re-emergence of several zoonotic and non-zoonotic global pandemic diseases of socio-economic importance has affected billions of humans and animals. The need for expensive equipment and laboratories, non-availability of on-site testing abilities, with time-consuming and low sensitivity and specificity issues of currently available diagnostic techniques to identify these pathogenic micro-organisms on a large scale highlighted the need for developing cheap, portable environment friendly diagnostic methods. In recent years, these issues have been addressed by clustered regularly interspaced palindromic repeats (CRISPR)-based diagnostic platforms that have transformed the molecular diagnostic field due to their outstanding ultra-sensitive nucleic acid detecting capabilities. In this study, we highlight the types, potential of different Cas proteins, and amplification systems. We also illuminate the application of currently available CRISPR integrated setups on the diagnosis of infectious diseases, majorly in food-producing animals (pigs, ruminants, poultry, and aquaculture), domestic pets (dogs and cats), and diseases of zoonotic importance. We conclude the challenges and future perspectives of using these systems to rapidly diagnose and treat other infectious diseases and also develop control strategies to prevent the spread of pathogenic organisms.
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Affiliation(s)
- Hafiz Muhammad Hamza Rasool
- State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary MedicineLanzhou University, Lanzhou Veterinary Research Institute, Chinese Academy of Agriculture SciencesLanzhouChina
| | - Qiwei Chen
- State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary MedicineLanzhou University, Lanzhou Veterinary Research Institute, Chinese Academy of Agriculture SciencesLanzhouChina
| | - Xiaowei Gong
- State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary MedicineLanzhou University, Lanzhou Veterinary Research Institute, Chinese Academy of Agriculture SciencesLanzhouChina
| | - Jizhang Zhou
- State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary MedicineLanzhou University, Lanzhou Veterinary Research Institute, Chinese Academy of Agriculture SciencesLanzhouChina
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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; 42:1410-1426. [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] [MESH Headings] [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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10
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Wang X, Chen X, Xu T, Jin X, Jiang J, Guan F. Rapid and Ultrasensitive Detection of H. aduncum via the RPA-CRISPR/Cas12a Platform. Molecules 2024; 29:4789. [PMID: 39459159 PMCID: PMC11510235 DOI: 10.3390/molecules29204789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2024] [Revised: 10/05/2024] [Accepted: 10/08/2024] [Indexed: 10/28/2024] Open
Abstract
Hysterothylacium aduncum is one of six pathogens responsible for human anisakiasis. Infection with H. aduncum can cause acute abdominal symptoms and allergic reactions and is prone to misdiagnosis in clinical practice. This study aims to enhance the efficiency and accuracy of detecting H. aduncum in food ingredients. We targeted the internal transcribed spacer 1 (ITS 1) regions of Anisakis to develop a visual screening method for detecting H. aduncum using recombinase polymerase amplification (RPA) combined with the CRISPR/Cas12a system. By comparing the ITS 1 region sequences of eight nematode species, we designed specific primers and CRISPR RNA (crRNA). The specificity of RPA primers was screened and evaluated, and the CRISPR system was optimized. We assessed its specificity and sensitivity and performed testing on commercial samples. The results indicated that the alternative primer ADU 1 was the most effective. The final optimized concentrations were 250 nM for Cas12a, 500 nM for crRNA, and 500 nM for ssDNA. The complete test procedure was achievable within 45 min at 37 °C, with a limit of detection (LOD) of 1.27 pg/μL. The amplified product could be directly observed using a fluorescence microscope or ultraviolet lamp. Detection results for 15 Anisakis samples were entirely consistent with those obtained via Sanger sequencing, demonstrating the higher efficacy of this method for detecting and identifying H. aduncum. This visual detection method, characterized by simple operation, visual results, high sensitivity, and specificity, meets the requirements for food safety testing and enhances monitoring efficiency.
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Affiliation(s)
- Xiaoming Wang
- College of Life Sciences, China Jiliang University, Hangzhou 310018, China; (X.W.); (T.X.)
- Zhejiang Museum of Natural History, Hangzhou 310018, China;
| | - Xiang Chen
- Zhoushan Institute for Food and Drug Inspection and Testing, Zhoushan 316021, China;
| | - Ting Xu
- College of Life Sciences, China Jiliang University, Hangzhou 310018, China; (X.W.); (T.X.)
| | - Xingsheng Jin
- Zhejiang Museum of Natural History, Hangzhou 310018, China;
| | - Junfang Jiang
- Institute of Animal and Veterinary Science, Academy of Zhejiang Agriculture Science, Hangzhou 310021, China
| | - Feng Guan
- College of Life Sciences, China Jiliang University, Hangzhou 310018, China; (X.W.); (T.X.)
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11
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Zhang X, Wang Y, Tang Y, Yang L, Zhao C, Yang G, Wang P, Gao S. A One-Step RPA-CRISPR Assay Using crRNA Based on Suboptimal Protospacer Adjacent Motif for Vibrio vulnificus Detection. Foodborne Pathog Dis 2024; 21:458-466. [PMID: 38551156 DOI: 10.1089/fpd.2023.0119] [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] [Indexed: 07/11/2024] Open
Abstract
Vibrio vulnificus is a hazardous foodborne pathogen responsible for approximately 95% of seafood-related deaths. This highlights the urgent requirement for specialized detection tools to be developed and used by food enterprises and food safety authorities. The DETECTR (DNA endonuclease targeted CRISPR trans reporter) system that combines CRISPR/Cas and recombinase polymerase amplification (RPA) has been utilized to develop a molecular detection assay for V. vulnificus. However, because the incompatibility between RPA and Cas12a cleavage has not been addressed, it is a two-step assay that lacks convenience and presents contamination risk. Here, we developed a one-step RPA-CRISPR assay for V. vulnificus using a special crRNA targeting a sequence with a suboptimal protospacer adjacent motif (PAM). The entire assay, conducted at 37°C, takes only 40-60 min, yields results visualized under blue light, and exhibits exceptional specificity and sensitivity (detecting 4 pathogen genome copies per reaction). This study offers a valuable tool for detecting V. vulnificus, aiding in foodborne infection prevention, and exemplifies one-step RPA-CRISPR assays managing Cas-cleavage activity through PAM adjustments.
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Affiliation(s)
- Xue Zhang
- Jiangsu Key Laboratory of Marine Biological Resources and Environment, Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Key Laboratory of Marine Pharmaceutical Compound Screening, Jiangsu Ocean University, Lianyungang, China
| | - Yue Wang
- Jiangsu Key Laboratory of Marine Biological Resources and Environment, Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Key Laboratory of Marine Pharmaceutical Compound Screening, Jiangsu Ocean University, Lianyungang, China
| | - Yixin Tang
- Jiangsu Key Laboratory of Marine Biological Resources and Environment, Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Key Laboratory of Marine Pharmaceutical Compound Screening, Jiangsu Ocean University, Lianyungang, China
| | - Lihong Yang
- Jiangsu Key Laboratory of Marine Biological Resources and Environment, Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Key Laboratory of Marine Pharmaceutical Compound Screening, Jiangsu Ocean University, Lianyungang, China
| | - Chenjie Zhao
- Jiangsu Key Laboratory of Marine Biological Resources and Environment, Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Key Laboratory of Marine Pharmaceutical Compound Screening, Jiangsu Ocean University, Lianyungang, China
| | - Guang Yang
- Jiangsu Key Laboratory of Marine Biological Resources and Environment, Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Key Laboratory of Marine Pharmaceutical Compound Screening, Jiangsu Ocean University, Lianyungang, China
| | - Pei Wang
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, China
| | - Song Gao
- Jiangsu Key Laboratory of Marine Biological Resources and Environment, Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Key Laboratory of Marine Pharmaceutical Compound Screening, Jiangsu Ocean University, Lianyungang, China
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12
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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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13
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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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14
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Yang L, Chen G, Wu J, Wei W, Peng C, Ding L, Chen X, Xu X, Wang X, Xu J. A PAM-Free One-Step Asymmetric RPA and CRISPR/Cas12b Combined Assay (OAR-CRISPR) for Rapid and Ultrasensitive DNA Detection. Anal Chem 2024; 96:5471-5477. [PMID: 38551977 DOI: 10.1021/acs.analchem.3c05545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/10/2024]
Abstract
Current research endeavors have focused on the combination of various isothermal nucleic acid amplification methods with CRISPR/Cas systems, aiming to establish a more sensitive and reliable molecular diagnostic approach. Nevertheless, most assays adopt a two-step procedure, complicating manual operations and heightening the risk of contamination. Efforts to amalgamate both assays into a single-step procedure have faced challenges due to their inherent incompatibility. Furthermore, the presence of the protospacer adjacent motif (PAM) motif (e.g., TTN or TTTN) in the target double-strand DNA (dsDNA) is an essential prerequisite for the activation of the Cas12-based method. This requirement imposes constraints on crRNA selection. To overcome such limitations, we have developed a novel PAM-free one-step asymmetric recombinase polymerase amplification (RPA) coupled with a CRISPR/Cas12b assay (OAR-CRISPR). This method innovatively merges asymmetric RPA, generating single-stranded DNA (ssDNA) amenable to CRISPR RNA binding without the limitations of the PAM site. Importantly, the single-strand cleavage by PAM-free crRNA does not interfere with the RPA amplification process, significantly reducing the overall detection times. The OAR-CRISPR assay demonstrates sensitivity comparable to that of qPCR but achieves results in a quarter of the time required by the latter method. Additionally, our OAR-CRISPR assay allows the naked-eye detection of as few as 60 copies/μL DNA within 8 min. This innovation marks the first integration of an asymmetric RPA into one-step CRISPR-based assays. These advancements not only support the progression of one-step CRISPR/Cas12-based detection but also open new avenues for the development of detection methods capable of targeting a wide range of DNA targets.
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Affiliation(s)
- Lei Yang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Key Laboratory of Traceability for Agricultural Genetically Modified Organisms, Ministry of Agriculture and Rural Affairs, P.R.China, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Guanwei Chen
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Key Laboratory of Traceability for Agricultural Genetically Modified Organisms, Ministry of Agriculture and Rural Affairs, P.R.China, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
- College of Life Sciences, Zhejiang Normal University, Jinhua 321004, China
| | - Jian Wu
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
| | - Wei Wei
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Key Laboratory of Traceability for Agricultural Genetically Modified Organisms, Ministry of Agriculture and Rural Affairs, P.R.China, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Cheng Peng
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Key Laboratory of Traceability for Agricultural Genetically Modified Organisms, Ministry of Agriculture and Rural Affairs, P.R.China, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Lin Ding
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Key Laboratory of Traceability for Agricultural Genetically Modified Organisms, Ministry of Agriculture and Rural Affairs, P.R.China, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Xiaoyun Chen
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Key Laboratory of Traceability for Agricultural Genetically Modified Organisms, Ministry of Agriculture and Rural Affairs, P.R.China, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Xiaoli Xu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Key Laboratory of Traceability for Agricultural Genetically Modified Organisms, Ministry of Agriculture and Rural Affairs, P.R.China, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Xiaofu Wang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Key Laboratory of Traceability for Agricultural Genetically Modified Organisms, Ministry of Agriculture and Rural Affairs, P.R.China, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Junfeng Xu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Key Laboratory of Traceability for Agricultural Genetically Modified Organisms, Ministry of Agriculture and Rural Affairs, P.R.China, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
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15
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Tan Q, Shi Y, Duan C, Li Q, Gong T, Li S, Duan X, Xie H, Li Y, Chen L. Simple, sensitive, and visual detection of 12 respiratory pathogens with one-pot-RPA-CRISPR/Cas12a assay. J Med Virol 2024; 96:e29624. [PMID: 38647075 DOI: 10.1002/jmv.29624] [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: 01/17/2024] [Revised: 03/21/2024] [Accepted: 04/11/2024] [Indexed: 04/25/2024]
Abstract
Respiratory infections pose a serious threat to global public health, underscoring the urgent need for rapid, accurate, and large-scale diagnostic tools. In recent years, the CRISPR/Cas (clustered regularly interspaced short palindromic repeats/CRISPR-associated) system, combined with isothermal amplification methods, has seen widespread application in nucleic acid testing (NAT). However, achieving a single-tube reaction system containing all necessary components is challenging due to the competitive effects between recombinase polymerase amplification (RPA) and CRISPR/Cas reagents. Furthermore, to enable precision medicine, distinguishing between bacterial and viral infections is essential. Here, we have developed a novel NAT method, termed one-pot-RPA-CRISPR/Cas12a, which combines RPA with CRISPR molecular diagnostic technology, enabling simultaneous detection of 12 common respiratory pathogens, including six bacteria and six viruses. RPA and CRISPR/Cas12a reactions are separated by paraffin, providing an independent platform for RPA reactions to generate sufficient target products before being mixed with the CRISPR/Cas12a system. Results can be visually observed under LED blue light. The sensitivity of the one-pot-RPA-CRISPR/Cas12a method is 2.5 × 100 copies/μL plasmids, with no cross-reaction with other bacteria or viruses. Additionally, the clinical utility was evaluated by testing clinical isolates of bacteria and virus throat swab samples, demonstrating favorable performance. Thus, our one-pot-RPA-CRISPR/Cas12a method shows immense potential for accurate and large-scale detection of 12 common respiratory pathogens in point-of-care testing.
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Affiliation(s)
- Qi Tan
- Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College, Chengdu, China
| | - Yaoqiang Shi
- Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College, Chengdu, China
| | - Chenlu Duan
- Sichuan Provincial Judicial Police General Hospital, Chengdu, China
| | - Qingyuan Li
- Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College, Chengdu, China
- North Sichuan Medical College, Nanchong, Sichuan, China
| | - Tao Gong
- Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College, Chengdu, China
- North Sichuan Medical College, Nanchong, Sichuan, China
| | - Shilin Li
- Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College, Chengdu, China
| | - Xiaoqiong Duan
- Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College, Chengdu, China
| | - He Xie
- The Hospital of Xidian Group, Xi'an, China
| | - Yujia Li
- Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College, Chengdu, China
| | - Limin Chen
- Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College, Chengdu, China
- The Hospital of Xidian Group, Xi'an, China
- The Joint-Laboratory on Transfusion-Transmitted Diseases (TTDs) between Institute of Blood Transfusion and Nanning Blood Center, Nanning Blood Center, Nanning, China
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16
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Wang Y, Tang Y, Chen Y, Yu G, Zhang X, Yang L, Zhao C, Wang P, Gao S. Ultrasensitive one-pot detection of monkeypox virus with RPA and CRISPR in a sucrose-aided multiphase aqueous system. Microbiol Spectr 2024; 12:e0226723. [PMID: 38078721 PMCID: PMC10782985 DOI: 10.1128/spectrum.02267-23] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 11/12/2023] [Indexed: 01/13/2024] Open
Abstract
IMPORTANCE The monkeypox virus was declared as a Public Health Emergency of International Concern (PHEIC) by the World Health Organization (WHO) and continues to cause infection cases worldwide. Given the risk of virus evolution, it is essential to identify monkeypox virus infection in a timely manner to prevent outbreaks. This study establishes a novel one-pot recombinase polymerase amplification-Clustered Regularly Interspaced Short Palindromic Repeats (RPA-CRISPR) assay for monkeypox virus with an ultra-high sensitivity. The assay shows good specificity, accuracy, and the rapidness and convenience important for point-of-care testing. It provides an effective tool for the early diagnosis of monkeypox, which is useful for the prevention of an epidemic.
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Affiliation(s)
- Yue Wang
- Jiangsu Key Laboratory of Marine Biological Resources and Environment, Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Key Laboratory of Marine Pharmaceutical Compound Screening, Jiangsu Ocean University, Lianyungang, China
| | - Yixin Tang
- Jiangsu Key Laboratory of Marine Biological Resources and Environment, Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Key Laboratory of Marine Pharmaceutical Compound Screening, Jiangsu Ocean University, Lianyungang, China
| | - Yukang Chen
- Jiangsu Key Laboratory of Marine Biological Resources and Environment, Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Key Laboratory of Marine Pharmaceutical Compound Screening, Jiangsu Ocean University, Lianyungang, China
| | - Guangxi Yu
- Jiangsu Key Laboratory of Marine Biological Resources and Environment, Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Key Laboratory of Marine Pharmaceutical Compound Screening, Jiangsu Ocean University, Lianyungang, China
| | - Xue Zhang
- Jiangsu Key Laboratory of Marine Biological Resources and Environment, Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Key Laboratory of Marine Pharmaceutical Compound Screening, Jiangsu Ocean University, Lianyungang, China
| | - Lihong Yang
- Jiangsu Key Laboratory of Marine Biological Resources and Environment, Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Key Laboratory of Marine Pharmaceutical Compound Screening, Jiangsu Ocean University, Lianyungang, China
| | - Chenjie Zhao
- Jiangsu Key Laboratory of Marine Biological Resources and Environment, Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Key Laboratory of Marine Pharmaceutical Compound Screening, Jiangsu Ocean University, Lianyungang, China
| | - Pei Wang
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, China
| | - Song Gao
- Jiangsu Key Laboratory of Marine Biological Resources and Environment, Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Key Laboratory of Marine Pharmaceutical Compound Screening, Jiangsu Ocean University, Lianyungang, China
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