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Saleh EAM, Ali E, Muxamadovna GM, Kassem AF, Kaur I, Kumar A, Jabbar HS, Alwaily ER, Elawady A, Omran AA. CRISPR/Cas-based colorimetric biosensors: a promising tool for the diagnosis of bacterial foodborne pathogens in food products. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024. [PMID: 38804827 DOI: 10.1039/d4ay00578c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2024]
Abstract
Some physical phenomena and various chemical substances newly introduced in nanotechnology have allowed scientists to develop valuable devices in the field of food sciences. Regarding such progress, the identification of foodborne pathogenic microorganisms is an imperative subject nowadays. These bacterial species have been found to cause severe health impacts after food ingestion and can result in high mortality in acute cases. The rapid detection of foodborne bacterial species at low concentrations is in high demand in recent diagnostics. CRISPR/Cas-mediated biosensors possess the potential to overcome several challenges in classical assays such as complex pretreatments, long turnaround time, and insensitivity. Among them, colorimetric nanoprobes based on the CRISPR strategy afford promising devices for POCT (point-of-care testing) since they can be visualized with the naked eye and do not require diagnostic apparatus. In this study, we briefly classify and discuss the working principles of the different CRISPR/Cas protein agents that have been employed in biosensors so far. We assess the current status of the CRISPR system, specifically focusing on colorimetric biosensing platforms. We discuss the utilization of each Cas effector in the detection of foodborne pathogens and examine the restrictions of the existing technology. The challenges and future opportunities are also indicated and addressed.
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Affiliation(s)
- Ebraheem Abdu Musad Saleh
- Department of Chemistry, College of Science and Humanities in Al-Kharj, Prince Sattam Bin Abdulaziz University, Al-Kharj, 11942, Saudi Arabia.
| | - Eyhab Ali
- Al-Zahraa University for Women, Karbala, Iraq
| | | | - Asmaa F Kassem
- Department of Chemistry, College of Science and Humanities in Al-Kharj, Prince Sattam Bin Abdulaziz University, Al-Kharj, 11942, Saudi Arabia
- Chemistry of Natural and Microbial Products Department, Pharmaceutical and Drug Industries Research Institute, National Research Centre, Dokki, Cairo 12622, Egypt
| | - Irwanjot Kaur
- Department of Biotechnology and Genetics, Jain (Deemed-to-be) University, Bengaluru, Karnataka-560069, India
- Department of Allied Healthcare and Sciences, Vivekananda Global University, Jaipur, Rajasthan-303012, India
| | - Abhinav Kumar
- Department of Nuclear and Renewable Energy, Ural Federal University Named After the First President of Russia Boris Yeltsin, Yekaterinburg 620002, Russia
| | - Hijran Sanaan Jabbar
- Department of Chemistry, College of Science, Salahaddin University-Erbil, Erbil, Kurdistan Region, Iraq
| | - Enas R Alwaily
- Microbiology Research Group, College of Pharmacy, Al-Ayen University, Thi-Qar, Iraq
| | - Ahmed Elawady
- College of Technical Engineering, The Islamic University of Al Diwaniyah, Al Diwaniyah, Iraq
- College of Technical Engineering, The Islamic University, Najaf, Iraq
- College of Technical Engineering, The Islamic University of Babylon, Babylon, Iraq
| | - Alaa A Omran
- Department of Engineering, AL-Nisour University College, Baghdad, Iraq
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Zhang W, Qu H, Wu X, Shi J, Wang X. Rapid, sensitive, and user-friendly detection of Pseudomonas aeruginosa using the RPA/CRISPR/Cas12a system. BMC Infect Dis 2024; 24:458. [PMID: 38689239 PMCID: PMC11061930 DOI: 10.1186/s12879-024-09348-3] [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: 11/14/2023] [Accepted: 04/24/2024] [Indexed: 05/02/2024] Open
Abstract
BACKGROUND Pseudomonas aeruginosa (P. aeruginosa) is a life-threatening bacterium known for its rapid development of antibiotic resistance, posing significant challenges in clinical treatment, biosecurity, food safety, and environmental monitoring. Early and accurate identification of P. aeruginosa is crucial for effective intervention. METHODS The lasB gene of P. aeruginosa was selected as the target for the detection. RPA primers for recombinase polymerase amplification (RPA) and crRNA for CRISPR/Cas12a detection were meticulously designed to target specific regions within the lasB gene. The specificity of the RPA/CRISPR/Cas12a detection platform was assessed using 15 strains. The detection limit of RPA/CRISPR/Cas12a detection platform was determined by utilizing a pseudo-dilution series of the P. aeruginosa DNA. The practical applicability of the RPA/CRISPR/Cas12a detection platform was validated by comparing it with qPCR on 150 samples (35 processed meat product samples, 55 cold seasoned vegetable dishes, 60 bottled water samples). RESULTS The RPA/CRISPR/Cas12a detection platform demonstrates high specificity, with no cross-reactivity with non-P. aeruginosa strains. This assay exhibits remarkable sensitivity, with a limit of detection (LOD) of 100 copies/µL for fluorescence assay and 101 copies/µL for the LFTS method. Furthermore, the performance of the RPA/CRISPR/Cas12a detection platform is comparable to that of the well-established qPCR method, while offering advantages such as shorter reaction time, simplified operation, and reduced equipment requirements. CONCLUSIONS The RPA/CRISPR/Cas12a detection platform presents a straightforward, accurate, and sensitive approach for early P. aeruginosa detection and holds great promise for diverse applications requiring rapid and reliable identification.
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Affiliation(s)
- Wenjing Zhang
- Medical college, Henan University of Chinese Medicine, No.156, Jinshui East Road, Zhengzhou, 450046, Henan, China.
| | - Hai Qu
- Autobio Diagnostics Co., Ltd., No.199, 15th Ave, Zhengzhou, 450016, Henan, China
| | - Xin Wu
- Medical college, Henan University of Chinese Medicine, No.156, Jinshui East Road, Zhengzhou, 450046, Henan, China
| | - Jingjing Shi
- Pharmacy College, Henan University of Chinese Medicine, No.156, Jinshui East Road, Zhengzhou, 450046, Henan, China
| | - Xinling Wang
- Pharmacy College, Henan University of Chinese Medicine, No.156, Jinshui East Road, Zhengzhou, 450046, Henan, China.
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Yang H, Liu A, Ma F, Gao X, Wang K, Wang Y. Establishment of portable Pseudomonas aeruginosa detection platform based on one-tube CRISPR/Cas12a combined with recombinase polymerase amplification technology. Clin Chim Acta 2024; 554:117760. [PMID: 38176521 DOI: 10.1016/j.cca.2024.117760] [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: 11/01/2023] [Revised: 12/07/2023] [Accepted: 01/01/2024] [Indexed: 01/06/2024]
Abstract
Pseudomonas aeruginosa, a common Gram-negative bacterium, is associated with diverse diseases. Its increasing resistance to antibiotics presents challenges in clinical treatment. The predominant diagnostic approach involves conventional biochemical cultures, known for their time and labor intensiveness. Despite progress in isothermal amplification studies, limitations persist, including reliance on specialized equipment, intricate primer design, and aerosol contamination. Therefore, there is a demand for enhanced clinical assays. This study successfully combined RPA and CRISPR/Cas12a techniques. Through a series of experiments involving the design and screening of lasB crRNA, the creation of lasB RPA primers, and the establishment of a streamlined RPA-CRISPR/Cas12a assay, the study developed a one-tube detection method targeting P. aeruginosa's lasB gene. The assay demonstrated inclusive behavior across standard and 21 isolates, while specifically discerning P. aeruginosa from diverse strains. Sensitivity reached 15.9 CFU/reaction. Clinical validation revealed a 97.62% concordance with traditional methods. The one-tube assay's protocol mitigated aerosol contamination. Offering precision, specificity, and sensitivity, this method shows promise for field applications in resource-scarce regions, enabling early detection and improved management of P. aeruginosa infections.
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Affiliation(s)
- Haitao Yang
- Department of Medicine Laboratory, The Second People's Hospital of Lianyungang Affiliated to Kangda College of Nanjing Medical University, The Second People's Hospital of Lianyungang City, Lianyungang 222000, China; Jiangsu Key Laboratory of Marine Pharmaceutical Compound Screening, College of Pharmacy, Jiangsu Ocean University, Lianyungang 222005, China
| | - Aibo Liu
- Department of Laboratory Medicine and Sichuan Provincial Key Laboratory for Human Disease Gene Study, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Fenfen Ma
- Department of Medicine Laboratory, The Second People's Hospital of Lianyungang Affiliated to Kangda College of Nanjing Medical University, The Second People's Hospital of Lianyungang City, Lianyungang 222000, China
| | - Xuzhu Gao
- Department of Medicine Laboratory, The Second People's Hospital of Lianyungang Affiliated to Kangda College of Nanjing Medical University, The Second People's Hospital of Lianyungang City, Lianyungang 222000, China
| | - Kun Wang
- Department of Medicine Laboratory, The Second People's Hospital of Lianyungang Affiliated to Kangda College of Nanjing Medical University, The Second People's Hospital of Lianyungang City, Lianyungang 222000, China
| | - Yan Wang
- Department of Medicine Laboratory, The Second People's Hospital of Lianyungang Affiliated to Kangda College of Nanjing Medical University, The Second People's Hospital of Lianyungang City, Lianyungang 222000, China.
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