1
|
Jiang L, Zhang G, Wang P, Niu X, Liu Q, Zhang S, Gao W, Li Y. Simultaneous detection of bovine viral diarrhea virus (BVDV) and bovine herpesvirus 1 (BoHV-1) using recombinase polymerase amplification. Sci Rep 2024; 14:10169. [PMID: 38702375 PMCID: PMC11068760 DOI: 10.1038/s41598-024-56869-7] [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: 01/15/2024] [Accepted: 03/12/2024] [Indexed: 05/06/2024] Open
Abstract
Bovine viral diarrhea virus (BVDV) is considered to be the most common agent of severe diarrhea in cattle worldwide, causing fever, diarrhea, ulcers, and abortion. Bovine herpesvirus 1 (BoHV-1) is also a major bovine respiratory disease agent that spreads worldwide and causes extensive damage to the livestock industry. Recombinase polymerase amplification (RPA) is a novel nucleic acid amplification method with the advantages of high efficiency, rapidity and sensitivity, which has been widely used in the diagnosis of infectious diseases. A dual RPA assay was developed for the simultaneous detection of BVDV and BoHV-1. The assay was completed at a constant temperature of 37 °C for 30 min. It was highly sensitive and had no cross-reactivity with other common bovine viruses. The detection rate of BVDV RPA in clinical samples (36.67%) was higher than that of PCR (33.33%), the detection rate of BoHV-1 RPA and PCR were equal. Therefore, the established dual RPA assay for BVDV and BoHV-1 could be a potential candidate for use as an immediate diagnostic.
Collapse
Affiliation(s)
- Lingling Jiang
- School of Life Sciences, Ningxia University, Yinchuan, China
- Key Laboratory of Ministry of Education for Conservation and Utilization of Special Biological Resources in Western China, Ningxia University, Yinchuan, China
| | - Gang Zhang
- School of Life Sciences, Ningxia University, Yinchuan, China
- Key Laboratory of Ministry of Education for Conservation and Utilization of Special Biological Resources in Western China, Ningxia University, Yinchuan, China
| | - Pu Wang
- School of Life Sciences, Ningxia University, Yinchuan, China
- Key Laboratory of Ministry of Education for Conservation and Utilization of Special Biological Resources in Western China, Ningxia University, Yinchuan, China
| | - Xiaoxia Niu
- School of Life Sciences, Ningxia University, Yinchuan, China
- Key Laboratory of Ministry of Education for Conservation and Utilization of Special Biological Resources in Western China, Ningxia University, Yinchuan, China
| | - Qiang Liu
- School of Life Sciences, Ningxia University, Yinchuan, China
- Key Laboratory of Ministry of Education for Conservation and Utilization of Special Biological Resources in Western China, Ningxia University, Yinchuan, China
| | - Sinong Zhang
- School of Life Sciences, Ningxia University, Yinchuan, China
- Key Laboratory of Ministry of Education for Conservation and Utilization of Special Biological Resources in Western China, Ningxia University, Yinchuan, China
| | - Weifeng Gao
- School of Life Sciences, Ningxia University, Yinchuan, China
- Key Laboratory of Ministry of Education for Conservation and Utilization of Special Biological Resources in Western China, Ningxia University, Yinchuan, China
| | - Yong Li
- School of Life Sciences, Ningxia University, Yinchuan, China.
- Key Laboratory of Ministry of Education for Conservation and Utilization of Special Biological Resources in Western China, Ningxia University, Yinchuan, China.
| |
Collapse
|
2
|
Hongdan G, Yao D, Qiang C, Meng H, Xiaorong L, Zhihao X, Dongli M. A multiplex recombinase polymerase amplification assay combined with CRISPR/Cas12a for the detection of respiratory syncytial virus and respiratory adenovirus. J Int Med Res 2024; 52:3000605231223083. [PMID: 38230675 PMCID: PMC10798089 DOI: 10.1177/03000605231223083] [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: 09/07/2023] [Accepted: 12/11/2023] [Indexed: 01/18/2024] Open
Abstract
OBJECTIVE Respiratory syncytial virus (RSV) and respiratory adenovirus (ADV) are two common pathogens that cause acute respiratory tract infections in children. We aimed to develop a rapid method for detecting both pathogens simultaneously. METHODS The recombinase polymerase isothermal amplification (RPA) method was combined with the CRISPR/Cas detection system. The assay's specificity and sensitivity were explored by designing RPA primers and CRISPR RNAs (crRNAs) through multi-sequence comparisons, optimizing the reaction conditions, and using a fluorescent reading device. The consistency of the test results of 160 clinical pharyngeal swab samples was studied using quantitative polymerase chain reaction (qPCR) results as a comparative control. RESULTS RSV and ADV could be detected at levels as low as 104 copies/mL and 103 copies/mL, respectively, within 50 minutes with no cross-reactivity with other similar pathogens. For the clinical samples, compared with the qPCR method, the sensitivities for RSV and ADV were 98.1% and 91.4%, respectively, and the detection specificities were both 100%. The Kappa values were greater than 0.95, suggesting a high degree of consistency. CONCLUSION This method for detecting RSV and ADV is rapid, sensitive, and specific. It can accurately detect mixed infections in a timely manner, making it suitable for use in areas with scarce healthcare resources.
Collapse
Affiliation(s)
- Gao Hongdan
- School of Laboratory Medicine, Bengbu Medical College, Bengbu, Anhui, China
- Institute of Pediatrics, Shenzhen Children’s Hospital, Shenzhen, Guangdong, China
| | - Du Yao
- School of Laboratory Medicine, Bengbu Medical College, Bengbu, Anhui, China
- Institute of Pediatrics, Shenzhen Children’s Hospital, Shenzhen, Guangdong, China
| | - Chai Qiang
- Shenzhen Sea Microbiology Technology Co., Ltd., Shenzhen, Guangdong, China
| | - Huang Meng
- Shenzhen Sea Microbiology Technology Co., Ltd., Shenzhen, Guangdong, China
| | - Liu Xiaorong
- Institute of Pediatrics, Shenzhen Children’s Hospital, Shenzhen, Guangdong, China
| | - Xing Zhihao
- Institute of Pediatrics, Shenzhen Children’s Hospital, Shenzhen, Guangdong, China
| | - Ma Dongli
- School of Laboratory Medicine, Bengbu Medical College, Bengbu, Anhui, China
- Institute of Pediatrics, Shenzhen Children’s Hospital, Shenzhen, Guangdong, China
| |
Collapse
|
3
|
Luo H, Zeng L, Yin X, Pan Y, Yang J, Liu M, Qin X, Feng Z, Chen W, Zheng H. An isothermal CRISPR-based diagnostic assay for Neisseria gonorrhoeae and Chlamydia trachomatis detection. Microbiol Spectr 2023; 11:e0046423. [PMID: 37882532 PMCID: PMC10715037 DOI: 10.1128/spectrum.00464-23] [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: 01/31/2023] [Accepted: 09/27/2023] [Indexed: 10/27/2023] Open
Abstract
IMPORTANCE A method for Neisseria gonorrhoeae (NG)/Chlamydia trachomatis (CT) detection is developed using multiplex-recombinase polymerase amplification and Cas12a/Cas13a. This method can detect NG and CT simultaneously with high sensitivity and specificity. This method has great potential to be further developed into larger-scale screening and point-of-care testing (POCT).
Collapse
Affiliation(s)
- Hao Luo
- Dermatology Hosptial, Southern Medical University, Guangzhou, China
- Guangzhou Key Laboratory for Sexually Transmitted Diseases Control, Guangzhou, China
| | - Lihong Zeng
- Dermatology Hosptial, Southern Medical University, Guangzhou, China
- Guangzhou Key Laboratory for Sexually Transmitted Diseases Control, Guangzhou, China
| | - Xiaona Yin
- Dermatology Hosptial, Southern Medical University, Guangzhou, China
- Guangzhou Key Laboratory for Sexually Transmitted Diseases Control, Guangzhou, China
| | - Yuying Pan
- Dermatology Hosptial, Southern Medical University, Guangzhou, China
- Guangzhou Key Laboratory for Sexually Transmitted Diseases Control, Guangzhou, China
| | - Jianjiang Yang
- Dermatology Hosptial, Southern Medical University, Guangzhou, China
- Guangzhou Key Laboratory for Sexually Transmitted Diseases Control, Guangzhou, China
| | - Mingjing Liu
- Medical College, China Three Gorges University, Yichang, China
| | - Xiaolin Qin
- Dermatology Hosptial, Southern Medical University, Guangzhou, China
- Guangzhou Key Laboratory for Sexually Transmitted Diseases Control, Guangzhou, China
| | - Zhanqin Feng
- Dermatology Hosptial, Southern Medical University, Guangzhou, China
- Guangzhou Key Laboratory for Sexually Transmitted Diseases Control, Guangzhou, China
| | - Wentao Chen
- Dermatology Hosptial, Southern Medical University, Guangzhou, China
- Guangzhou Key Laboratory for Sexually Transmitted Diseases Control, Guangzhou, China
| | - Heping Zheng
- Dermatology Hosptial, Southern Medical University, Guangzhou, China
- Guangzhou Key Laboratory for Sexually Transmitted Diseases Control, Guangzhou, China
| |
Collapse
|
4
|
Liu Q, Wang N, Qiu M, Cheng J, Zhou H, Che F, Hu Y, He Y, Dai Y, Zhang Y. Development and application of a universal extraction-free reagent based on an algal glycolipid. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2023; 15:6061-6072. [PMID: 37921204 DOI: 10.1039/d3ay01246h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2023]
Abstract
In this study, we independently developed a universal nasopharyngeal swab extraction-free reagent based on a trehalose lipid for the rapid detection of pathogen nucleic acids in respiratory infectious diseases. By comparing the isothermal amplification results of a 2019-nCoV pseudovirus solution treated with different components of the extraction-free reagent, we determined the optimal composition of the extraction-free reagent to be a mixed solution of 10 mmol L-1 tris-HCl containing 0.05 mmol L-1 EDTA (TE solution), 5% glycine betaine, 0.5% Triton X-100, and 1.5% trehalose lipid. The results showed that the extraction-free reagent could cleave DNA viruses, RNA viruses, and bacteria to release nucleic acids and did not affect the subsequent nucleic acid amplification. Its efficiency was consistent with that of magnetic bead extraction. Real-time fluorescence quantitative PCR was used to analyze the stability and repeatability of the detection results of the samples treated with the extraction-free reagent and the sensitivity of the extraction-free reagent. The results showed that the extraction-free kit could stably store the pathogen nucleic acid for at least 24 hours, the detection repeatability was satisfactory, and there was no incompatibility with the detection limits of various manufacturers' nucleic acid detection reagents. In conclusion, the established nucleic acid extraction-free method can effectively lyse respiratory infectious disease pathogens to release nucleic acids (DNA and RNA) at room temperature and can directly amplify nucleic acids without extraction steps. This method takes a short time and has high efficiency. The released nucleic acid met the requirements of molecular biological detection methods such as real-time fluorescence quantitative PCR (qPCR), reverse transcription-polymerase chain reaction (RT-PCR), and isothermal nucleic acid amplification (INAA).
Collapse
Affiliation(s)
- Qingqing Liu
- School of Laboratory Medicine, Bengbu Medical College, 2600 Donghai Avenue, Longzihu District, Bengbu 233000, China.
- Department of Clinical Research, The 903rd Hospital of PLA, 14 Lingyin Road, Westlake District, Hangzhou 310013, China.
| | - Ningning Wang
- School of Laboratory Medicine, Bengbu Medical College, 2600 Donghai Avenue, Longzihu District, Bengbu 233000, China.
- Department of Clinical Research, The 903rd Hospital of PLA, 14 Lingyin Road, Westlake District, Hangzhou 310013, China.
| | - Minli Qiu
- Department of Clinical Research, The 903rd Hospital of PLA, 14 Lingyin Road, Westlake District, Hangzhou 310013, China.
| | - Jun Cheng
- Department of Clinical Research, The 903rd Hospital of PLA, 14 Lingyin Road, Westlake District, Hangzhou 310013, China.
| | - Huajun Zhou
- Department of Clinical Research, The 903rd Hospital of PLA, 14 Lingyin Road, Westlake District, Hangzhou 310013, China.
| | - Feihu Che
- Department of Clinical Research, The 903rd Hospital of PLA, 14 Lingyin Road, Westlake District, Hangzhou 310013, China.
| | - Yan Hu
- Disease Prevention and Control Department, The 903rd Hospital of PLA, 14 Lingyin Road, Westlake District, Hangzhou 310013, China
| | - Yinghui He
- Department of Clinical Research, West Lake District Integrated Traditional Chinese and Western Medicine Hospital, 398 Dunxiang Street, Sandun Town, Hangzhou 310000, China
| | - Yuzhu Dai
- Department of Clinical Research, The 903rd Hospital of PLA, 14 Lingyin Road, Westlake District, Hangzhou 310013, China.
| | - Yingjie Zhang
- School of Laboratory Medicine, Bengbu Medical College, 2600 Donghai Avenue, Longzihu District, Bengbu 233000, China.
| |
Collapse
|
5
|
Liu Y, Huang H, Zheng Y, Wang C, Chen W, Huang W, Lin L, Wei H, Wang J, Lin M. Development of a POCT detection platform based on a locked nucleic acid-enhanced ARMS-RPA-GoldMag lateral flow assay. J Pharm Biomed Anal 2023; 235:115632. [PMID: 37573622 DOI: 10.1016/j.jpba.2023.115632] [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: 06/05/2023] [Revised: 07/16/2023] [Accepted: 08/04/2023] [Indexed: 08/15/2023]
Abstract
In this study, a novel genotyping point-of-care testing (POCT) rapid detection device, the locked nucleic acid (LNA)-amplification refractory mutation system (ARMS)-recombinase polymerase amplification (RPA)-GoldMag lateral flow assay (LFA) platform, was provided by mining and synthesis based on prior technology. Research methods based on system-integrated innovation and knowledge-integrated generation have become a new trend in technology development. Here, we exploit the combination of LNA-coupled ARMS-RPA and gold nanoparticle probe technology for detection signal amplification, thus pioneering a new tool for accurate, rapid, and cost-effective genotyping. We also performed SNP typing detection and clinical validation of this new assay platform using common glucose-6-phosphate dehydrogenase (G6PD) gene single nucleotide polymorphism (SNP) loci, and the results demonstrated the high sensitivity, specificity, stability, accuracy and feasibility of the LNA-ARMS-RPA-GoldMag lateral flow assay platform. It is hoped that this new technology will make a significant contribution to the field of POCT rapid diagnosis and aim to expand the application space, reflecting its clinical application value and development prospects.
Collapse
Affiliation(s)
- Yaqun Liu
- School of Food Engineering and Biotechnology, Hanshan Normal University, Chaozhou, Guangdong, People's Republic of China
| | - Huiying Huang
- Shool of Laboratory Medicine, Youjiang Medical University for Nationalities, Baise, Guangxi, People's Republic of China
| | - Yuzhong Zheng
- School of Food Engineering and Biotechnology, Hanshan Normal University, Chaozhou, Guangdong, People's Republic of China
| | - Chunfang Wang
- Shool of Laboratory Medicine, Youjiang Medical University for Nationalities, Baise, Guangxi, People's Republic of China
| | - Wencheng Chen
- Shool of Laboratory Medicine, Youjiang Medical University for Nationalities, Baise, Guangxi, People's Republic of China
| | - Weiyi Huang
- Shool of Laboratory Medicine, Youjiang Medical University for Nationalities, Baise, Guangxi, People's Republic of China
| | - Liyun Lin
- School of Food Engineering and Biotechnology, Hanshan Normal University, Chaozhou, Guangdong, People's Republic of China
| | - Huagui Wei
- Shool of Laboratory Medicine, Youjiang Medical University for Nationalities, Baise, Guangxi, People's Republic of China
| | - Junli Wang
- Shool of Laboratory Medicine, Youjiang Medical University for Nationalities, Baise, Guangxi, People's Republic of China.
| | - Min Lin
- School of Food Engineering and Biotechnology, Hanshan Normal University, Chaozhou, Guangdong, People's Republic of China; Shool of Laboratory Medicine, Youjiang Medical University for Nationalities, Baise, Guangxi, People's Republic of China.
| |
Collapse
|
6
|
Yang J, Fan M, Chen X, Chen Y, Huang M, Wang X, Lu Q, Zou M, Song H, Min X, Huang J. Leak-proof probe for accurate detection of Neisseria gonorrhoeae by recombinase polymerase amplification-mediated lateral flow strip. Anal Chim Acta 2023; 1258:341176. [PMID: 37087294 DOI: 10.1016/j.aca.2023.341176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 03/22/2023] [Accepted: 04/04/2023] [Indexed: 04/09/2023]
Abstract
Neisseria gonorrhoeae is the only pathogen contributing to gonorrhea, a common infectious disease. Clinically, approximately 50-80% of female and 40% of male patients are asymptomatic, and these carriers are the key to gonorrhea transmission. The rapid detection of N. gonorrhoeae recessive infection is vital to curb the spread of gonorrhea. Therefore, the development of a specific, sensitive, rapid, and convenient method for the diagnosis of N. gonorrhoeae is a priority. In this study, we identified the highly conserved fitA gene of N. gonorrhoeae as a detection target through bioinformatics analysis. Then, we constructed a convenient, economical, and effective biosensor to detect N. gonorrhoeae without false-positive results based on recombinase polymerase amplification-mediated lateral flow strip by leak-proof probe. The biosensor has high sensitivity, is capable of detecting N. gonorrhoeae at concentrations as low as 102 copies/μL within 28 min, and has high specificity, which allows N. gonorrhoeae to be differentiated from other genito-urinary bacteria and fungi. Finally, this biosensor has been successfully applied to the detection of N. gonorrhoeae in clinical samples, and the results have been consistent with those determined using qRT-PCR.
Collapse
|
7
|
Chen X, Zhou Q, Yuan W, Shi Y, Dong S, Luo X. Visual and rapid identification of Chlamydia trachomatis and Neisseria gonorrhoeae using multiplex loop-mediated isothermal amplification and a gold nanoparticle-based lateral flow biosensor. Front Cell Infect Microbiol 2023; 13:1067554. [PMID: 36926514 PMCID: PMC10011439 DOI: 10.3389/fcimb.2023.1067554] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Accepted: 02/15/2023] [Indexed: 03/08/2023] Open
Abstract
Sexually transmitted chlamydia and gonorrhea infections caused by the bacteria Chlamydia trachomatis and Neisseria gonorrhoeae remain a major public health concern worldwide, particularly in less developed nations. It is crucial to use a point of care (POC) diagnostic method that is quick, specific, sensitive, and user-friendly to treat and control these infections effectively. Here, a novel molecular diagnostic assay, combining multiplex loop-mediated isothermal amplification (mLAMP) with a visual gold nanoparticles-based lateral flow biosensor (AuNPs-LFB) was devised and used for highly specific, sensitive, rapid, visual, and easy identification of C. trachomatis and N. gonorrhoeae. Two unique independent primer pairs were successful designed against the ompA and orf1 genes of C. trachomatis and N. gonorrhoeae, respectively. The optimal mLAMP-AuNPs-LFB reaction conditions were determined to be 67°C for 35 min. The detection procedure, involving crude genomic DNA extraction (~5 min), LAMP amplification (35 min), and visual results interpretation (<2 min), can be completed within 45 min. Our assay has a detection limit of 50 copies per test, and we did not observe any cross-reactivity with any other bacteria in our testing. Hence, our mLAMP-AuNPs-LFB assay can potentially be used for POC testing to detect C. trachomatis and N. gonorrhoeae in clinical settings, particularly in underdeveloped regions.
Collapse
Affiliation(s)
- Xu Chen
- The Second Clinical College, Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou, China
- Clinical Medical Laboratory of the Second Affiliated Hospital, Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou, China
- *Correspondence: Xinhua Luo, ; Shilei Dong, ; Xu Chen,
| | - Qingxue Zhou
- Clinical Laboratory, Hangzhou Women’s Hospital, Hangzhou, Zhejiang, China
| | - Wei Yuan
- Department of Quality Control, Guizhou Provincial Center for Clinical Laboratory, Guiyang, Guizhou, China
| | - Yuanfang Shi
- The Second Clinical College, Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou, China
| | - Shilei Dong
- Department of Clinical Laboratory, Zhejiang Hospital, Hangzhou, Zhejiang, China
- *Correspondence: Xinhua Luo, ; Shilei Dong, ; Xu Chen,
| | - Xinhua Luo
- Department of Infectious Disease, Guizhou Provincial People’s Hospital, Guiyang, Guizhou, China
- *Correspondence: Xinhua Luo, ; Shilei Dong, ; Xu Chen,
| |
Collapse
|
8
|
Zhai J, Wang L, Qiao X, Zhao J, Wang X, He X. Correction: Detection of Neisseria gonorrhoeae and Chlamydia trachomatis infections in pregnant women by multiplex recombinase polymerase amplification. PLoS One 2022; 17:e0271836. [PMID: 35839235 PMCID: PMC9286235 DOI: 10.1371/journal.pone.0271836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
|
9
|
Liu L, Bai Q, Zhang X, Lu C, Li Z, Liang H, Chen L. Fluorescent Biosensor Based on Hairpin DNA Stabilized Copper Nanoclusters for Chlamydia trachomatis Detection. J Fluoresc 2022; 32:1651-1660. [PMID: 35612764 DOI: 10.1007/s10895-022-02961-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Accepted: 04/20/2022] [Indexed: 11/30/2022]
Abstract
Chlamydia trachomatis (C. trachomatis) is a kind of intracellular parasitic microorganism, which can causes many diseases such as trachoma. In this strategy, a specific hairpin DNA with the probe loop as specific regions to recognize C. trachomatis DNA with strong affinity was designed, and its stem consisted of 24 AT base pairs as an effective template for hairpin DNA-CuNCs formation. In the absence of C. trachomatis DNA, the detection system showed strong orange fluorescence emission peaks at 606 nm. In the presence of C. trachomatis DNA, the conformation of DNA probe changed after hybridizing with C. trachomatis DNA. Then, the amount of hairpin DNA-CuNCs was reduced and resulted in low fluorescence emission. C. trachomatis DNA displayed a significant inhibitory effect on the synthesis of fluorescent hairpin DNA-CuNCs due to the competition between C. trachomatis DNA and the specific hairpin DNA. Under the optimal experimental conditions, different concentrations of C. trachomatis were tested and the results showed a good linear relationship in the range of 50 nM to 950 nM. Moreover, the detection limit was 18.5 nM and this detection method possessed good selectivity. Finally, the fluorescent biosensor had been successfully applied to the detection of C. trachomatis target sequence in HeLa cell lysate, providing a new strategy for the detection of C. trachomatis.
Collapse
Affiliation(s)
- Luyao Liu
- Department of Public Health Laboratory Sciences, School of Public Health, Hengyang Medical School, University of South China, Hengyang, 421001, Hunan, China
- Hunan Key Laboratory of Typical Environmental Pollution and Health Hazards, School of Public Health, Hengyang Medical School, University of South China, Hengyang, 421001, Hunan, China
- Hengyang Engineering Technology Research Center, Hengyang, 421001, Hunan, China
| | - Qinqin Bai
- Department of Public Health Laboratory Sciences, School of Public Health, Hengyang Medical School, University of South China, Hengyang, 421001, Hunan, China
- Hunan Key Laboratory of Typical Environmental Pollution and Health Hazards, School of Public Health, Hengyang Medical School, University of South China, Hengyang, 421001, Hunan, China
- Hengyang Engineering Technology Research Center, Hengyang, 421001, Hunan, China
| | - Xuebing Zhang
- Department of Public Health Laboratory Sciences, School of Public Health, Hengyang Medical School, University of South China, Hengyang, 421001, Hunan, China
- Hunan Key Laboratory of Typical Environmental Pollution and Health Hazards, School of Public Health, Hengyang Medical School, University of South China, Hengyang, 421001, Hunan, China
- Hengyang Engineering Technology Research Center, Hengyang, 421001, Hunan, China
| | - Chunxue Lu
- Institute of Pathogenic Biology, Hengyang Medical School, University of South China, Hengyang, 421001, Hunan, China
| | - Zhongyu Li
- Institute of Pathogenic Biology, Hengyang Medical School, University of South China, Hengyang, 421001, Hunan, China
| | - Hao Liang
- Department of Public Health Laboratory Sciences, School of Public Health, Hengyang Medical School, University of South China, Hengyang, 421001, Hunan, China.
- Hunan Key Laboratory of Typical Environmental Pollution and Health Hazards, School of Public Health, Hengyang Medical School, University of South China, Hengyang, 421001, Hunan, China.
- Hengyang Engineering Technology Research Center, Hengyang, 421001, Hunan, China.
| | - Lili Chen
- Department of Public Health Laboratory Sciences, School of Public Health, Hengyang Medical School, University of South China, Hengyang, 421001, Hunan, China.
- Hunan Key Laboratory of Typical Environmental Pollution and Health Hazards, School of Public Health, Hengyang Medical School, University of South China, Hengyang, 421001, Hunan, China.
- Hengyang Engineering Technology Research Center, Hengyang, 421001, Hunan, China.
| |
Collapse
|
10
|
Moon YJ, Lee SY, Oh SW. A Review of Isothermal Amplification Methods and Food-Origin Inhibitors against Detecting Food-Borne Pathogens. Foods 2022; 11:foods11030322. [PMID: 35159473 PMCID: PMC8833899 DOI: 10.3390/foods11030322] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 01/17/2022] [Accepted: 01/18/2022] [Indexed: 02/06/2023] Open
Abstract
The isothermal amplification method, a molecular-based diagnostic technology, such as loop-mediated isothermal amplification (LAMP) and recombinase polymerase amplification (RPA), is widely used as an alternative to the time-consuming and labor-intensive culture-based detection method. However, food matrices or other compounds can inhibit molecular-based diagnostic technologies, causing reduced detection efficiencies, and false-negative results. These inhibitors originating from food are polysaccharides and polyphenolic compounds in berries, seafood, and vegetables. Additionally, magnesium ions needed for amplification reactions can also inhibit molecular-based diagnostics. The successful removal of inhibitors originating from food and molecular amplification reaction is therefore proposed to enhance the efficiency of molecular-based diagnostics and allow accurate detection of food-borne pathogens. Among molecular-based diagnostics, PCR inhibitors have been reported. Nevertheless, reports on the mechanism and removal of isothermal amplification method inhibitors are insufficient. Therefore, this review describes inhibitors originating from food and some compounds inhibiting the detection of food-borne pathogens during isothermal amplification.
Collapse
|
11
|
Shin K, Kwon SH, Lee SC, Moon YE. Sensitive and Rapid Detection of Citrus Scab Using an RPA-CRISPR/Cas12a System Combined with a Lateral Flow Assay. PLANTS 2021; 10:plants10102132. [PMID: 34685941 PMCID: PMC8539466 DOI: 10.3390/plants10102132] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 10/02/2021] [Accepted: 10/02/2021] [Indexed: 12/14/2022]
Abstract
Citrus is the most extensively produced fruit tree crop in the world and is grown in over 130 countries. Fungal diseases in citrus can cause significant losses in yield and quality. An accurate diagnosis is critical for determining the best management practices and preventing future losses. In this study, a Recombinase polymerase amplification (RPA)-clustered regularly interspaced short palindromic repeats (CRISPR)/associated (Cas) system was established with the integration of a lateral flow assay (LFA) readout system for diagnosis of citrus scab. This detection can be completed within 1 h, is highly sensitive and prevents cross-reactions with other common fungal citrus diseases. Furthermore, the detection system is compatible with crude DNA extracted from infected plant tissue. This RPA-CRISPR/Cas12a-LFA system provides a sensitive, rapid, and cost-effective method with promising and significant practical value for point-of-care diagnosis of citrus scab. To our knowledge, this is the first report to establish an RPA- and CRISPR-based method with LFA for fungal diseases in plants.
Collapse
|