1
|
Kumar SS, Jamalpure S, Ahmed AN, Taju G, Vimal S, Majeed SA, Suryakodi S, Rahamathulla S, Paknikar KM, Rajwade JM, Hameed ASS. An Indigenous, Field-Deployable, Lateral Flow Immunochromatographic Assay Rapidly Detects Infectious Myonecrosis in Shrimp, Litopenaeus vannamei. MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2022; 24:1110-1124. [PMID: 36242690 DOI: 10.1007/s10126-022-10172-6] [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: 08/22/2022] [Accepted: 10/02/2022] [Indexed: 06/16/2023]
Abstract
Shrimp farming is an important socioeconomic activity worldwide. Infectious myonecrosis virus (IMNV) is an important shrimp virus responsible for significant mortality (up to 70%) in Litopenaeus vannamei. We produced recombinant capsid protein (r-IMNV31) and obtained a highly specific antibody, anti-r-IMNV31, which was used in WOAH-approved ELISA and Western blot to detect IMNV. Further, anti-r-IMNV31 was employed in an indigenously developed lateral flow immunoassay (LFA) with gold nanoparticles as a visual label. Using LFA, IMNV could be detected rapidly (20 min) from tissue homogenate with high specificity, reproducibility, and sensitivity (LOD = 103 viral particles). LFA was validated with "gold standard" qRT-PCR using 60 samples with high sensitivity (100%), specificity (86%). A Cohen's kappa coefficient of 0.86 suggested "good agreement" between LFA and qRT-PCR. With a shelf-life of ~ 1 year at ambient temperature, the use of LFA in the on-site detection of IMNV by shrimp farmers will be a reality.
Collapse
Affiliation(s)
- S Santhosh Kumar
- Aquatic Animal Health Laboratory (OIE Reference Laboratory for WTD), C. Abdul Hakeem College, ( Thiruvalluvar University), Tamilnadu, 632509, Melvisharam, India
| | - Snehal Jamalpure
- Nanobioscience Group, Agharkar Research Institute, Pune, 411004, India
- Savitribai Phule Pune University, Ganeshkhind Road, Pune, 411007, India
| | - A Nafeez Ahmed
- Aquatic Animal Health Laboratory (OIE Reference Laboratory for WTD), C. Abdul Hakeem College, ( Thiruvalluvar University), Tamilnadu, 632509, Melvisharam, India
| | - G Taju
- Aquatic Animal Health Laboratory (OIE Reference Laboratory for WTD), C. Abdul Hakeem College, ( Thiruvalluvar University), Tamilnadu, 632509, Melvisharam, India
| | - S Vimal
- Saveetha Medical College & Hospital, Saveetha Institute of Medical and Technical Sciences (SIMATS), Thandalam, Chennai, 602105, India
| | - S Abdul Majeed
- Aquatic Animal Health Laboratory (OIE Reference Laboratory for WTD), C. Abdul Hakeem College, ( Thiruvalluvar University), Tamilnadu, 632509, Melvisharam, India
| | - S Suryakodi
- Aquatic Animal Health Laboratory (OIE Reference Laboratory for WTD), C. Abdul Hakeem College, ( Thiruvalluvar University), Tamilnadu, 632509, Melvisharam, India
| | | | - Kishore M Paknikar
- Nanobioscience Group, Agharkar Research Institute, Pune, 411004, India
- Indian Institute of Technology, Powai, Mumbai, 400076, India
| | - Jyutika M Rajwade
- Nanobioscience Group, Agharkar Research Institute, Pune, 411004, India.
- Savitribai Phule Pune University, Ganeshkhind Road, Pune, 411007, India.
| | - A S Sahul Hameed
- Aquatic Animal Health Laboratory (OIE Reference Laboratory for WTD), C. Abdul Hakeem College, ( Thiruvalluvar University), Tamilnadu, 632509, Melvisharam, India.
| |
Collapse
|
2
|
Jing H, Li X, Xu L, Gao L, Lin X, Zhang M, Wang N, Liu X, Wu S. Development of a Colloidal Gold Immunochromatographic Strip for the Rapid Detection of Channel Catfish Virus. J AOAC Int 2021; 104:1350-1354. [PMID: 33787893 DOI: 10.1093/jaoacint/qsaa152] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 10/21/2020] [Accepted: 10/22/2020] [Indexed: 11/13/2022]
Abstract
BACKGROUND Channel catfish virus disease (CCVD) has resulted in great economic losses and has restricted the development of fisheries. There is therefore, a need for rapid and efficient diagnostic methods to control the spread of CCVD. OBJECTIVE A colloidal gold immunochromatographic strip has been developed for the detection of CCVD. METHODS In this study, a colloidal gold immunochromatographic strip for channel catfish virus (CCV) detection was developed using the monoclonal antibody 8B6 conjugated with colloidal gold as the detector antibody. A rabbit anti-CCV antibody was used as the capture complex at the test line, and a goat anti-mouse IgG antibody was used as the capture antibody at the control line. The strip was characterized in its specificity, sensitivity, and stability. In addition, an infection experiment was performed to test the applicability of the test strip. RESULT The strip was able to detect concentrations of the virus (104 tissue culture infective dose (TCID50)/mL) and showed analytical specificity when tested against other viral pathogens. The strips were still usable after 30 days of storage at 60°C. It was possible to detect CCV experimentally in infected fish within 10-15 min of using the strip. CONCLUSIONS The strip can be used as a rapid and convenient tool for on-site diagnosis to control outbreaks and the spread of CCVD. HIGHLIGHTS The immunochromatographic strip was the first to be developed and applied for the detection of CCVD.
Collapse
Affiliation(s)
- Hongli Jing
- Chinese Academy of Inspection and Quarantine, Beijing, 100176, China
| | - Xiaolin Li
- Baoding Animal Disease Prevention and Control Center, Baoding, Hebei, 071000, China
| | - Lipu Xu
- Beijing Aquatic Product Technology Promotion Department, Beijing, 100176, China
| | - Longying Gao
- Shenzhen Customs District P.R. China, Shenzhen, 518026, China
| | - Xiangmei Lin
- Chinese Academy of Inspection and Quarantine, Beijing, 100176, China
| | - Min Zhang
- Chinese Academy of Inspection and Quarantine, Beijing, 100176, China
| | - Na Wang
- Chinese Academy of Inspection and Quarantine, Beijing, 100176, China
| | - Xiaofei Liu
- Chinese Academy of Inspection and Quarantine, Beijing, 100176, China
| | - Shaoqiang Wu
- Chinese Academy of Inspection and Quarantine, Beijing, 100176, China
| |
Collapse
|
3
|
Nguyen-Phuoc KH, Duong ND, Phan TV, Do KYT, Nguyen NTT, Tran TL, Tran-Van H. Generation and evaluation of polyclonal antibodies specific for ToxA from Vibrio parahaemolyticus causing acute hepatopancreatic necrosis disease (AHPND) in shrimp. MOLECULAR BIOLOGY RESEARCH COMMUNICATIONS 2021; 10:23-32. [PMID: 33681394 PMCID: PMC7936389 DOI: 10.22099/mbrc.2020.38774.1561] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Acute Hepatopancreatic Necrosis Disease (AHPND) is a newly emerging shrimp disease with mortality up to 100 percent caused by Vibrio parahaemolyticus which carries a plasmid encoding for two toxins, ToxA and ToxB. In 2013, the Global Aquaculture Alliance (GAA) estimated shrimp farming decline in Asia accounted for 1-billion US dollar lost. Currently, diagnosis using PCR method does not meet the demand of in situ detection, which is based on antigen-antibody interaction, has not been developed yet. In this present study, we proceeded to create the toxin and its antibody for lateral flow development. First, recombinant toxin ToxA was generated by gene manipulation. After that, purified ToxA was used to immunize rabbits. Finally, antisera from rabbits and protein-A purified antibodies were evaluated for titer, specificity, and detection threshold. Results showed that recombinant ToxA was overexpressed in soluble fraction at 37oC with 1mM IPTG. Purification by affinity chromatography was able to isolate recombinant ToxA with the purity up to 94.49%. In ELISA experiment, the immunized antisera reached a titer of up to 1/5,210,000 with 1µg/ml of antigen, and detection threshold was 100ng recombinant toxin. After purification, the detection threshold of purified polyclonal antibodies was 25ng toxin per dot. These results laid a groundwork for the development of AHPND detection kit based on antigen - antibody interactions.
Collapse
Affiliation(s)
- Khai-Hoan Nguyen-Phuoc
- Department of Molecular and Environmental Biotechnology, Faculty of Biology and Biotechnology, University of Science, Ho Chi Minh, Vietnam.,Vietnam National University, Ho Chi Minh, Vietnam.,First authorship shared
| | - Ngoc-Diem Duong
- Department of Molecular and Environmental Biotechnology, Faculty of Biology and Biotechnology, University of Science, Ho Chi Minh, Vietnam.,Vietnam National University, Ho Chi Minh, Vietnam.,Pasteur Institute in Ho Chi Minh City, Vietnam.,First authorship shared
| | - Thach Van Phan
- Department of Molecular and Environmental Biotechnology, Faculty of Biology and Biotechnology, University of Science, Ho Chi Minh, Vietnam.,Vietnam National University, Ho Chi Minh, Vietnam
| | | | | | - Thuoc Linh Tran
- Department of Molecular and Environmental Biotechnology, Faculty of Biology and Biotechnology, University of Science, Ho Chi Minh, Vietnam.,Vietnam National University, Ho Chi Minh, Vietnam
| | - Hieu Tran-Van
- Department of Molecular and Environmental Biotechnology, Faculty of Biology and Biotechnology, University of Science, Ho Chi Minh, Vietnam.,Vietnam National University, Ho Chi Minh, Vietnam
| |
Collapse
|
4
|
Wangman P, Chaivisuthangkura P, Taengchaiyaphum S, Pengsuk C, Sithigorngul P, Longyant S. Development of a rapid immunochromatographic strip test for the detection of Vibrio parahaemolyticus toxin B that cause acute hepatopancreatic necrosis disease. JOURNAL OF FISH DISEASES 2020; 43:207-214. [PMID: 31752048 DOI: 10.1111/jfd.13115] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 10/11/2019] [Accepted: 10/15/2019] [Indexed: 06/10/2023]
Abstract
Here, two monoclonal antibodies (MAbs) specific to different epitopes on ToxB, a toxin produced by Vibrio parahaemolyticus that causes acute hepatopancreatic necrosis disease (VPAHPND ), were employed to develop a rapid strip test. One MAb was conjugated to colloidal gold to bind to ToxB at the application pad, and another MAb was used to capture colloidal gold MAb-protein complexes at the test line (T) on the nitrocellulose strip. To validate test performance, a downstream control line (C) of goat anti-mouse immunoglobulin G antibody was used to capture the free colloidal gold conjugate MAb. The sample in the application buffer could be applied directly to the application well, and the test result was obtained within 15 min. The sensitivity of the kit is approximately 6.25 µg/ml of toxin, which was equivalent to the toxin produced by approximately 107 cfu/ml of bacteria. This kit is convenient and easy to use since it can be used to identify VPAHPND directly using a single colony of bacteria grown on agar culture plates. Because of its high specificity and simplicity, as well as not being reliant on sophisticated equipment or specialized skills, this strip test could be used by farmers for surveillance for ToxB-producing bacteria.
Collapse
Affiliation(s)
- Pradit Wangman
- Department of Biology, Faculty of Science, Srinakharinwirot University, Bangkok, Thailand
- Center of Excellence in Animal, Plant and Parasite Biotechnology, Srinakharinwirot University, Bangkok, Thailand
| | - Parin Chaivisuthangkura
- Department of Biology, Faculty of Science, Srinakharinwirot University, Bangkok, Thailand
- Center of Excellence in Animal, Plant and Parasite Biotechnology, Srinakharinwirot University, Bangkok, Thailand
| | - Suparat Taengchaiyaphum
- Aquatic Animal Health Research Team, Integrative Aquaculture Biotechnology Research Group, National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Yothi Office, Bangkok, Thailand
| | - Chalinan Pengsuk
- Faculty of Agricultural Product Innovation and Technology, Srinakharinwirot University, Nakhon Nayok, Thailand
| | - Paisarn Sithigorngul
- Department of Biology, Faculty of Science, Srinakharinwirot University, Bangkok, Thailand
- Center of Excellence in Animal, Plant and Parasite Biotechnology, Srinakharinwirot University, Bangkok, Thailand
| | - Siwaporn Longyant
- Department of Biology, Faculty of Science, Srinakharinwirot University, Bangkok, Thailand
- Center of Excellence in Animal, Plant and Parasite Biotechnology, Srinakharinwirot University, Bangkok, Thailand
| |
Collapse
|
5
|
Liu IL, Lin YC, Lin YC, Jian CZ, Cheng IC, Chen HW. A Novel Immunochromatographic Strip for Antigen Detection of Avian Infectious Bronchitis Virus. Int J Mol Sci 2019; 20:ijms20092216. [PMID: 31064083 PMCID: PMC6540333 DOI: 10.3390/ijms20092216] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2019] [Revised: 05/01/2019] [Accepted: 05/05/2019] [Indexed: 11/16/2022] Open
Abstract
Avian infectious bronchitis virus (IBV) causes considerable economic losses in the poultry industry worldwide, including Taiwan. IBV is among the most important pathogens in chickens, and it spreads rapidly among flocks. In addition to dozens of known serotypes, new viral variants have emerged due to the viral evolution and antigenic variation in IBVs. Therefore, the development of a sensitive, specific, and easily performed assay is crucial for the rapid detection and surveillance of IBV infections. A rapid and simple immunochromatographic strip (ICS) was developed in this study by employing monoclonal antibodies against spike and nucleocapsid proteins of IBV as the tracer and the capture antibody. The ICS showed high specificity in detecting IBV antigens, including several IBV genotypes and novel variants, as opposed to three other common avian respiratory viruses. The detection limit of the strip reached 104.4 50% embryo-infective dose. Moreover, in the experimental chicken model, the strip test demonstrated consistency in detecting IBV with RT-PCR gene detection. Taken together, this antigen detection strip has the potential to serve as an on-farm rapid test for IBV; therefore, it may facilitate surveillance and control of the disease.
Collapse
Affiliation(s)
- I-Li Liu
- Institute of Veterinary Clinical Science, School of Veterinary Medicine, National Taiwan University, Taipei 10617, Taiwan.
| | - Yi-Chun Lin
- Department of Veterinary Medicine, National Taiwan University, Taipei 10617, Taiwan.
| | - Yong-Chong Lin
- Department of Veterinary Medicine, National Taiwan University, Taipei 10617, Taiwan.
| | - Cai-Zhen Jian
- Department of Veterinary Medicine, National Taiwan University, Taipei 10617, Taiwan.
| | - Ivan-Chen Cheng
- Department of Veterinary Medicine, National Taiwan University, Taipei 10617, Taiwan.
| | - Hui-Wen Chen
- Department of Veterinary Medicine, National Taiwan University, Taipei 10617, Taiwan.
| |
Collapse
|
6
|
Yu M, Bao Y, Wang M, Zhu H, Wang X, Xing L, Chang F, Liu Y, Farooque M, Wang Y, Qi X, Liu C, Zhang Y, Cui H, Li K, Gao L, Pan Q, Wang X, Gao Y. Development and application of a colloidal gold test strip for detection of avian leukosis virus. Appl Microbiol Biotechnol 2018; 103:427-435. [PMID: 30349931 DOI: 10.1007/s00253-018-9461-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 10/11/2018] [Accepted: 10/12/2018] [Indexed: 11/30/2022]
Abstract
Avian leukosis virus (ALV) is an avian oncogenic retrovirus that induces leukemia-like proliferative diseases in chickens. ALV infection can result in the development of immunological tolerance and persistent viremia. Since effective vaccines against ALV are not yet available, its current prevention primarily depends on detection and eradication to establish exogenous ALV-free poultry flocks. In this study, a rapid and simple colloidal gold test strip method, specific for the group-specific antigen, p27 protein, was developed and systematically evaluated for the detection of ALV from different samples. The detection limit of this assay was as low as 6.25 ng/ml for p27 protein and 80 TCID50/ml for different subgroups of ALV. Besides, the test strip showed high specificity in the detection of different subgroups of ALV, including ALV-A, ALV-B, ALV-J, and ALV-K, with no cross-reaction with other avian pathogens. Furthermore, we artificially infected specific pathogen-free (SPF) chickens with ALV-J, collected cloacal swabs, and examined viral shedding using both test strips and ELISA. Results from the test strip were highly consistent with that from ELISA. In addition, 1104 virus isolates from anti-coagulant blood samples, 645 albumen samples, and 4312 meconium samples were tested, and the test strip results agreed with those of ELISA kit up to 97.1%. All the results indicated that the colloidal gold test strip could serve as a simple, rapid, sensitive, and specific diagnostic method for eradication of ALV in poultry farms.
Collapse
Affiliation(s)
- Mengmeng Yu
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, The Chinese Academy of Agricultural Sciences, No. 678 Haping Road, Xiangfang District, Harbin, 150069, Heilongjiang Province, People's Republic of China
| | - Yuanling Bao
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, The Chinese Academy of Agricultural Sciences, No. 678 Haping Road, Xiangfang District, Harbin, 150069, Heilongjiang Province, People's Republic of China
| | - Muping Wang
- Harbin Guosheng Biotechnology Co., Ltd, Harbin, 150028, People's Republic of China
| | - Haibo Zhu
- Harbin Guosheng Biotechnology Co., Ltd, Harbin, 150028, People's Republic of China
| | - Xiaoyan Wang
- Chinese Academy of Sciences Key Laboratory of infection and immunity, Institute of Biophysics of the Chinese Academy of sciences, Beijing, 100101, People's Republic of China
| | - Lixiao Xing
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, The Chinese Academy of Agricultural Sciences, No. 678 Haping Road, Xiangfang District, Harbin, 150069, Heilongjiang Province, People's Republic of China
| | - Fangfang Chang
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, The Chinese Academy of Agricultural Sciences, No. 678 Haping Road, Xiangfang District, Harbin, 150069, Heilongjiang Province, People's Republic of China
| | - Yongzhen Liu
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, The Chinese Academy of Agricultural Sciences, No. 678 Haping Road, Xiangfang District, Harbin, 150069, Heilongjiang Province, People's Republic of China
| | - Muhammad Farooque
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, The Chinese Academy of Agricultural Sciences, No. 678 Haping Road, Xiangfang District, Harbin, 150069, Heilongjiang Province, People's Republic of China
| | - Yongqiang Wang
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, The Chinese Academy of Agricultural Sciences, No. 678 Haping Road, Xiangfang District, Harbin, 150069, Heilongjiang Province, People's Republic of China
| | - Xiaole Qi
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, The Chinese Academy of Agricultural Sciences, No. 678 Haping Road, Xiangfang District, Harbin, 150069, Heilongjiang Province, People's Republic of China
| | - Changjun Liu
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, The Chinese Academy of Agricultural Sciences, No. 678 Haping Road, Xiangfang District, Harbin, 150069, Heilongjiang Province, People's Republic of China
| | - Yanping Zhang
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, The Chinese Academy of Agricultural Sciences, No. 678 Haping Road, Xiangfang District, Harbin, 150069, Heilongjiang Province, People's Republic of China
| | - Hongyu Cui
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, The Chinese Academy of Agricultural Sciences, No. 678 Haping Road, Xiangfang District, Harbin, 150069, Heilongjiang Province, People's Republic of China
| | - Kai Li
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, The Chinese Academy of Agricultural Sciences, No. 678 Haping Road, Xiangfang District, Harbin, 150069, Heilongjiang Province, People's Republic of China
| | - Li Gao
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, The Chinese Academy of Agricultural Sciences, No. 678 Haping Road, Xiangfang District, Harbin, 150069, Heilongjiang Province, People's Republic of China
| | - Qing Pan
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, The Chinese Academy of Agricultural Sciences, No. 678 Haping Road, Xiangfang District, Harbin, 150069, Heilongjiang Province, People's Republic of China
| | - Xiaomei Wang
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, The Chinese Academy of Agricultural Sciences, No. 678 Haping Road, Xiangfang District, Harbin, 150069, Heilongjiang Province, People's Republic of China.
| | - Yulong Gao
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, The Chinese Academy of Agricultural Sciences, No. 678 Haping Road, Xiangfang District, Harbin, 150069, Heilongjiang Province, People's Republic of China.
| |
Collapse
|
7
|
Yu JE, Ouh IO, Kang H, Lee HY, Cheong KM, Cho IS, Cha SH. An enhanced immunochromatographic strip test using colloidal gold nanoparticle-labeled dual-type N proteins for detection of antibodies to PRRS virus. J Vet Sci 2018; 19:519-527. [PMID: 29510472 PMCID: PMC6070587 DOI: 10.4142/jvs.2018.19.4.519] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Revised: 02/21/2018] [Accepted: 03/03/2018] [Indexed: 11/25/2022] Open
Abstract
Porcine reproductive and respiratory syndrome (PRRS) is recognized as one of the most important infectious diseases causing serious economic loss in the swine industry worldwide. Due to its increasing genetic diversity, a rapid and accurate diagnosis is critical for PRRS control. The immunochromatographic strip test (ICST) is a rapid and convenient type of immunoassay. In this study, an on-site immunochromatographic assay-based diagnostic method was developed for detection of PRRS virus (PRRSV)-specific antibodies. The method utilized colloidal gold nanoparticle-labeled dual-type nucleocapsid proteins encoded by open reading frame 7. We evaluated 991 field samples from pig farms and 66 serum samples from experimentally PRRSV-inoculated pigs. Based on true PRRSV-specific antibody-positive or -negative sera determined by immunofluorescence assay and IgM enzyme-linked immunosorbent assay (ELISA), the specificity and sensitivity of the ICST were 97.5% and 91.1%, respectively, similar to those of a commercial ELISA (IDEXX PRRS X3 Ab). More importantly, the ICST was completed within 15 min and could detect the PRRSV-specific antibody at an earlier stage of infection (3-7 days) than that of ELISA (7+ days). The results demonstrate that the developed ICST has great potential as an on-farm diagnostic method, providing excellent diagnostic performance in a quick and convenient manner.
Collapse
Affiliation(s)
- Ji Eun Yu
- Viral Disease Research Division, Animal and Plant Quarantine Agency, Gimcheon 39660, Korea
| | - In-Ohk Ouh
- Viral Disease Research Division, Animal and Plant Quarantine Agency, Gimcheon 39660, Korea
| | - Hyeonjeong Kang
- Viral Disease Research Division, Animal and Plant Quarantine Agency, Gimcheon 39660, Korea
| | - Hye-Young Lee
- Research Institution, MEDIAN Diagnostics, Chuncheon 24399, Korea
| | | | - In-Soo Cho
- Viral Disease Research Division, Animal and Plant Quarantine Agency, Gimcheon 39660, Korea
| | - Sang-Ho Cha
- Viral Disease Research Division, Animal and Plant Quarantine Agency, Gimcheon 39660, Korea
| |
Collapse
|
8
|
Deng J, Liu Y, Jia R, Wang M, Chen S, Zhu D, Liu M, Sun K, Zhao X, Yin Z, Chen A. Development of an immunochromatographic strip for detection of antibodies against duck Tembusu virus. J Virol Methods 2017; 249:137-142. [DOI: 10.1016/j.jviromet.2017.08.022] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Revised: 07/26/2017] [Accepted: 08/28/2017] [Indexed: 11/26/2022]
|
9
|
Fan D, Liu J, Xu M, Yuan Y, Yang J, Chen J. A convenient immunochromatographic test strip for rapid detection of Scylla serrata reovirus. Virol Sin 2017. [PMID: 28643195 DOI: 10.1007/s12250-017-4008-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Affiliation(s)
- Dongyang Fan
- College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo, 315100, China
| | - Jingwen Liu
- College of Food and Bioengineering, Jimei University, Xiamen, 361021, China
| | - Miaomiao Xu
- College of Food and Bioengineering, Jimei University, Xiamen, 361021, China
| | - Yangyang Yuan
- College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo, 315100, China
| | - Jifang Yang
- College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo, 315100, China
| | - Jigang Chen
- College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo, 315100, China.
| |
Collapse
|
10
|
|
11
|
Wang CS, Chang CY, Wen CM. Developing immunological methods for detecting Macrobrachium rosenbergii nodavirus and extra small virus using a recombinant protein preparation. JOURNAL OF FISH DISEASES 2016; 39:715-727. [PMID: 26263892 DOI: 10.1111/jfd.12404] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Revised: 06/16/2015] [Accepted: 06/26/2015] [Indexed: 06/04/2023]
Abstract
Macrobrachium rosenbergii nodavirus (MrNV) and extra small virus (XSV) have been identified as the causative agents for white tail disease (WTD) of M. rosenbergii. In this study, the gene sequences encoding MrNV and XSV capsid proteins were separately ligated into the pGEX-4T-3 expression vector and transformed into Escherichia coli. After induction, glutathione-S-transferase (GST)-tagged MrNV and XSV fusion proteins were obtained with molecular masses of 68 and 43 kDa, respectively. Specific polyclonal antibodies for MrNV and XSV against viral recombinant proteins and infected prawn tissues were verified using Western blotting. According to immunodot blot assay results, the detection sensitivities of antibodies were approximately 5 ng μL(-1) for both recombinant proteins GST-MrNV and GST-XSV. In additional, MrNV and XSV were detected at dilution levels of 1:2560 and 1:640 in the infected prawn tissues, respectively. No cross-reactions with white spot syndrome virus or grouper nervous necrosis virus were observed using immunodot blot assays. MrNV and XSV in infected muscle tissues were detected using immunohistochemistry. Although the detection limit of the immunodot blot assay was lower than that of nested reverse transcription polymerase chain reaction, these polyclonal antibodies can be useful for confirming MrNV and XSV infections in field tests.
Collapse
Affiliation(s)
- C-S Wang
- Department of Life Sciences, National University of Kaohsiung, Kaohsiung, Taiwan
| | - C-Y Chang
- Department of Life Sciences, National University of Kaohsiung, Kaohsiung, Taiwan
| | - C-M Wen
- Department of Life Sciences, National University of Kaohsiung, Kaohsiung, Taiwan
| |
Collapse
|
12
|
Cowley J. Nidoviruses of Fish and Crustaceans. AQUACULTURE VIROLOGY 2016. [PMCID: PMC7150020 DOI: 10.1016/b978-0-12-801573-5.00032-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Viruses with diverse virion architectures demarcated into four families in the order Nidovirales have been discovered in vertebrate mammalian and fish species, as well as in invertebrate crustacean and mosquito species. The order is unified by nidoviruses sharing intermediate (12.7 kb) to very long (31.7 kb) (+) ssRNA genomes, each possessing a long 5′-terminal gene encoding overlapping ORF1a and ORF1b reading frames that contain a diversity of functionally related enzymes and that are translated in toto using a −1 ribosomal frameshift mechanism, as well as by semiconserved strategies for transcribing a nested set of 3′-coterminal subgenomic mRNAs that translate the viral proteins. The nidovirus that is most important to an aquaculture species is yellow head virus (YHV), which causes disease in shrimp farmed throughout the Eastern Hemisphere and is classified in the genus Okavirus, family Roniviridae. Fathead minnow nidovirus, genus Bafinivirus, subfamily Torovirinae, family Coronaviridae, also causes disease in minnows grown for the baitfish industry in the United States. Virions similar in morphology to okaviruses and bafiniviruses have also been detected in several crab species. Of these, however, only Eriocheir sinensis ronivirus, which causes disease in the Chinese mitten crab, an important freshwater aquaculture species in China, has been shown to possess a ~22 kb ssRNA genome that supports its being a nidovirus, but its taxonomic classification awaits genome sequence analysis. This chapter provides an overview of the structure, replication and biology of these viruses with a particular focus on YHV disease characteristics, diagnostic methods and disease prevention strategies.
Collapse
|
13
|
Zhang L, Li D, Liu L, Zhang G. Rapid immunochromatographic test strip to detect swimming crab Portunus trituberculatus reovirus. DISEASES OF AQUATIC ORGANISMS 2015; 117:21-29. [PMID: 26575153 DOI: 10.3354/dao02921] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Swimming crab reovirus (SCRV) is the causative agent of a serious disease with high mortality in cultured Portunus trituberculatus. A rapid immunochromatographic assay (ICA) was developed in a competitive assay format and optimized for the detection of SCRV. The gold probe-based ICA test comprised SCRV antigen and goat anti-chicken egg yolk antibody (IgY) sprayed onto a nitrocellulose membrane as the test line and control line, respectively. IgY-gold complexes were deposited onto the conjugate pad as detector reagents. The method showed high specificity with no cross-reactivity with other related aquatic pathogens. The detection limit of the ICA strip was 50 µg ml⁻¹. To evaluate the performance of the ICA test, the strip and an enzyme-linked immunosorbent assay (ELISA) were applied to the same samples (n = 90 crabs). The strip successfully detected SCRV in all of the artificially infected samples. Furthermore, the ICA strip and ELISA tests had high consistency (98.28%). The strip assay requires no instruments and has a detection time of less than 10 min. It is portable and easy to perform in the field. These results indicated that the developed strip could be a promising on-site tool for screening pooled crabs to confirm SCRV infection or disease outbreaks.
Collapse
Affiliation(s)
- LiPing Zhang
- School of Marine Sciences, Ningbo University, Fenghua Road, Ningbo, Zhejiang 315211, PR China
| | | | | | | |
Collapse
|
14
|
Cox CR, Jensen KR, Mondesire RR, Voorhees KJ. Rapid detection of Bacillus anthracis by γ phage amplification and lateral flow immunochromatography. J Microbiol Methods 2015; 118:51-6. [PMID: 26310605 DOI: 10.1016/j.mimet.2015.08.011] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2015] [Revised: 08/12/2015] [Accepted: 08/13/2015] [Indexed: 11/18/2022]
Abstract
New, rapid point-of-need diagnostic methods for Bacillus anthracis detection can enhance civil and military responses to accidental or deliberate dispersal of anthrax as a biological weapon. Current laboratory-based methods for clinical identification of B. anthracis require 12 to 120h, and are confirmed by plaque assay using the well-characterized γ typing phage, which requires an additional minimum of 24h for bacterial culture. To reduce testing time, the natural specificity of γ phage amplification was investigated in combination with lateral flow immunochromatography (LFI) for rapid, point-of-need B. anthracis detection. Phage-based LFI detection of B. anthracis Sterne was validated over a range of bacterial and phage concentrations with optimal detection achieved in as little as 2h from the onset of amplification with a threshold sensitivity of 2.5×10(4)cfu/mL. The novel use of γ phage amplification detected with a simple, inexpensive LFI assay provides a rapid, sensitive, highly accurate, and field-deployable method for diagnostic ID of B. anthracis in a fraction of the time required by conventional techniques, and without the need for extensive laboratory culture.
Collapse
Affiliation(s)
- Christopher R Cox
- Colorado School of Mines, Department of Chemistry and Geochemistry, Golden, CO 80401, United States
| | - Kirk R Jensen
- Colorado School of Mines, Department of Chemistry and Geochemistry, Golden, CO 80401, United States
| | | | - Kent J Voorhees
- Colorado School of Mines, Department of Chemistry and Geochemistry, Golden, CO 80401, United States
| |
Collapse
|
15
|
Li M, Yang H, Li S, Zhao K, Li J, Jiang D, Sun L, Deng A. Ultrasensitive and quantitative detection of a new β-agonist phenylethanolamine A by a novel immunochromatographic assay based on surface-enhanced Raman scattering (SERS). JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2014; 62:10896-902. [PMID: 25343225 DOI: 10.1021/jf503599x] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Phenylethanolamine A (PA) is a new kind of β-agonist, which was illegally used as a feed additive for growth promotion in China. In this study, a novel immunochromatographic assay (ICA) based on surface-enhanced Raman scattering (SERS) for the ultrasensitive and quantitative detection of phenylethanolamine A is presented. The principle of this new ICA is similar to that based on colloidal gold particles, but using Au(MBA)@Ag-Ab [e.g., polyclonal antibody of PA labeled Au@Ag core-shell nanoparticles (NPs) sandwiched with a Raman reporter (4-mercaptobenzoic acid, MBA)] as a probe. After ICA procedures, the specific Raman scattering intensity of MBA on the test line was measured for quantitative detection of PA. This assay was completed within 15 min. The IC50 and limit of detection (LOD) values of the ICA for PA detection were 0.06 ng mL(-1) and 0.32 pg mL(-1), respectively, which were 1-3 orders of magnitude lower than those obtained by other immunoassays, indicating the ultrasensitivity of this ICA. There was no cross-reactivity (CR) of the assay with another three β-agonists (ractopamine, clenbuterol, and salbutamol), suggesting high specificity of the SERS-based ICA. A spiking experiment revealed that the recoveries of PA from pig urine samples were in range of 99.9- 101.2% with relative standard deviations (RSDs) of 3.6-5.8%. The results demonstrated that this SERS-based ICA was able to quantitatively detect PA in urine samples with high sensitivity, specificity, precision, and accuracy and might be a powerful method for the analysis of other target analytes in the food area.
Collapse
Affiliation(s)
- Mingxin Li
- The Key Laboratory of Health Chemistry and Molecular Diagnosis of Suzhou, College of Chemistry, Chemical Engineering and Materials Science, and ‡College of Pharmacy Sciences, Soochow University , Suzhou 215123, China
| | | | | | | | | | | | | | | |
Collapse
|
16
|
Development of a colloidal gold kit for the diagnosis of severe fever with thrombocytopenia syndrome virus infection. BIOMED RESEARCH INTERNATIONAL 2014; 2014:530621. [PMID: 24826381 PMCID: PMC4009110 DOI: 10.1155/2014/530621] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2013] [Revised: 03/05/2014] [Accepted: 03/20/2014] [Indexed: 11/18/2022]
Abstract
It is critical to develop a cost-effective detection kit for rapid diagnosis and on-site detection of severe fever with thrombocytopenia syndrome virus (SFTSV) infection. Here, an immunochromatographic assay (ICA) to detect SFTSV infection is described. The ICA uses gold nanoparticles coated with recombinant SFTSV for the simultaneous detection of IgG and IgM antibodies to SFTSV. The ICA was developed and evaluated by using positive sera samples of SFTSV infection (n = 245) collected from the CDC of China. The reference laboratory diagnosis of SFTSV infection was based on the "gold standard". The results demonstrated that the positive coincidence rate and negative coincidence rate were determined to be 98.4% and 100% for IgM and 96.7% and 98.6% for IgG, respectively. The kit showed good selectivity for detection of SFTSV-specific IgG and IgM with no interference from positive sera samples of Japanese encephalitis virus infection, Dengue virus infection, Hantavirus infection, HIV infection, HBV surface antigen, HCV antibody, Mycobacterium tuberculosis antibody, or RF. Based on these results, the ICS test developed may be a suitable tool for rapid on-site testing for SFTSV infections.
Collapse
|
17
|
Chaivisuthangkura P, Longyant S, Sithigorngul P. Immunological-based assays for specific detection of shrimp viruses. World J Virol 2014; 3:1-10. [PMID: 24567913 PMCID: PMC3926971 DOI: 10.5501/wjv.v3.i1.1] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2013] [Revised: 10/25/2013] [Accepted: 11/16/2013] [Indexed: 02/05/2023] Open
Abstract
Among shrimp viral pathogens, white spot syndrome virus (WSSV) and yellow head virus (YHV) are the most lethal agents, causing serious problems for both the whiteleg shrimp, Penaeus (Litopenaeus) vannamei, and the black tiger shrimp, Penaeus (Penaeus) monodon. Another important virus that infects P. vannamei is infectious myonecrosis virus (IMNV), which induces the white discoloration of affected muscle. In the cases of taura syndrome virus and Penaeus stylirostris densovirus (PstDNV; formerly known as infectious hypodermal and hematopoietic necrosis virus), their impacts were greatly diminished after the introduction of tolerant stocks of P. vannamei. Less important viruses are Penaeus monodon densovirus (PmDNV; formerly called hepatopancreatic parvovirus), and Penaeus monodon nucleopolyhedrovirus (PemoNPV; previously called monodon baculovirus). For freshwater prawn, Macrobrachium rosenbergii nodavirus and extra small virus are considered important viral pathogens. Monoclonal antibodies (MAbs) specific to the shrimp viruses described above have been generated and used as an alternative tool in various immunoassays such as enzyme-linked immunosorbent assay, dot blotting, Western blotting and immunohistochemistry. Some of these MAbs were further developed into immunochromatographic strip tests for the detection of WSSV, YHV, IMNV and PemoNPV and into a dual strip test for the simultaneous detection of WSSV/YHV. The strip test has the advantages of speed, as the result can be obtained within 15 min, and simplicity, as laboratory equipment and specialized skills are not required. Therefore, strip tests can be used by shrimp farmers for the pond-side monitoring of viral infection.
Collapse
|
18
|
Chaivisuthangkura P, Pengsuk C, Longyant S, Sithigorngul P. Evaluation of monoclonal antibody based immunochromatographic strip test for direct detection of Vibrio cholerae O1 contamination in seafood samples. J Microbiol Methods 2013; 95:304-11. [PMID: 24060694 DOI: 10.1016/j.mimet.2013.09.013] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2013] [Revised: 09/11/2013] [Accepted: 09/12/2013] [Indexed: 10/26/2022]
Abstract
A strip test for the detection of Vibrio cholerae O1 was developed using two monoclonal antibodies (MAbs), VC-223 and VC-1226, specific to the lipopolysaccharides of Vibrio cholerae O1 Inaba and Ogawa serovars. The sensitivity of the test was 5 × 10(5)cfu/mL which was similar to that of dot blot test. The detection limit could be improved to 1cfu/mL of the original bacterial content after pre-incubation of the bacterium in alkaline peptone water (APW) for 12h. Detection of V. cholerae O1 in various fresh seafood samples such as shrimp, blood clam, mussel and oyster could be performed directly with sensitivities ranged from 5 × 10(5) to 10(6)cfu/mL. After pre-enrichment of the shrimp sample in APW, the detection sensitivities increased to 10(2) to 10CFU/mL of the original bacterial content after incubation for 12 and 24h. However, the detection sensitivities were also depending on the content of the other bacteria that might inhibit the growth of V. cholerae during pre-enrichment step. The V. cholerae O1 strip test has advantages in speed, and simplicity in not requiring sophisticated equipment or specialized skills and the sample could be directly examined without requirement for sample processing.
Collapse
|
19
|
Simple and rapid detection of infectious myonecrosis virus using an immunochromatographic strip test. Arch Virol 2013; 158:1925-30. [PMID: 23563897 DOI: 10.1007/s00705-013-1680-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2013] [Accepted: 02/14/2013] [Indexed: 10/27/2022]
Abstract
A strip test was developed for detection of infectious myonecrosis virus (IMNV) using a pair of monoclonal antibodies (MAbs), called IMN7 and IMC6, that are specific for the N and C fragments, respectively, of the IMNV capsid protein. The test strips were placed in plastic cassettes and stored desiccated in sealed plastic bags. In detection assays using the test-strip cassettes, 100-μl samples of application buffer containing homogenates from muscles or pleopods of normal or IMNV-infected shrimp were applied to the cassette sample chamber. Subsequent flow through the glass-fiber pad and the nitrocellulose membrane strip led to the development of visible antibody-protein complexes within 15 min. In samples containing IMNV, viral capsid protein bound to gold-labeled IMN7 in the glass-fiber pad and the complex was subsequently captured by MAb IMC6 at the T line to form a reddish-purple band. Any unbound gold-labeled IMN7 migrated past the T line to be captured by the GAM antibody to form a band at the C line. Samples without IMNV or containing it below the test detection limit gave reddish-purple bands only at the C line. The sensitivity of the test was comparable to that of dot blot tests using single MAbs but was ~300-fold less sensitive than a one-step RT-PCR test for IMNV. Despite this lower sensitivity, the strip test has advantages of low cost, speed and simplicity (i.e., no sophisticated equipment or specialized skills required), and it is appropriate for use by farmers for pathogen confirmation when IMNV is suspected in diseased shrimp.
Collapse
|
20
|
Development and evaluation of a highly sensitive immunochromatographic strip test using gold nanoparticle for direct detection of Vibrio cholerae O139 in seafoodsamples. Biosens Bioelectron 2013. [DOI: 10.1016/j.bios.2012.10.011] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
21
|
Improved immunodetection of Taura syndrome virus using a monoclonal antibody specific for heterologously expressed VP1 capsid protein. Arch Virol 2012; 158:77-85. [PMID: 22972680 DOI: 10.1007/s00705-012-1460-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2012] [Accepted: 07/18/2012] [Indexed: 12/27/2022]
Abstract
vp1, a gene encoding one of the capsid proteins of Taura syndrome virus, was cloned into the pGEX-6P-1 expression vector, and the resulting construct was then used to transform E. coli strain BL21. After induction, an N-terminally glutathione-S-transferase-tagged VP1 (GST-VP1) protein with a molecular mass of 80 kDa was obtained. This protein was purified by SDS-PAGE and used for immunization of Swiss mice for monoclonal antibody (MAb) production. Three MAbs specific for the VP1 protein were selected that were suitable for detecting natural TSV infection in Penaeus vannamei by dot blotting, western blotting and immunohistochemistry. This detection occurs without cross-reaction to other shrimp tissues or other common shrimp viruses. As determined by dot blotting, the detection sensitivity of the MAbs was approximately 2 fmole/spot of the GST-VP1. These MAbs showed detection sensitivity comparable to that of MAbs specific for VP2, but they exhibited stronger immunoreactivity than previously studied MAbs specific for VP3. Although the sensitivity of the MAbs to VP1 was 1,000 times lower than one-step RT-PCR, they could be used in various types of antibody-based assays to confirm and enhance the detection sensitivity of TSV infection in shrimp.
Collapse
|
22
|
Sheng X, Song J, Zhan W. Development of a colloidal gold immunochromatographic test strip for detection of lymphocystis disease virus in fish. J Appl Microbiol 2012; 113:737-44. [DOI: 10.1111/j.1365-2672.2012.05389.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2012] [Revised: 07/02/2012] [Accepted: 07/03/2012] [Indexed: 11/28/2022]
Affiliation(s)
- X.Z. Sheng
- Laboratory of Pathology and Immunology of Aquatic Animals; Ocean University of China; Qingdao; China
| | - J.L. Song
- Laboratory of Pathology and Immunology of Aquatic Animals; Ocean University of China; Qingdao; China
| | - W.B. Zhan
- Laboratory of Pathology and Immunology of Aquatic Animals; Ocean University of China; Qingdao; China
| |
Collapse
|
23
|
Zhang D, Li P, Zhang Q, Li R, Zhang W, Ding X, Li CM. A naked-eye based strategy for semiquantitative immunochromatographic assay. Anal Chim Acta 2012; 740:74-9. [DOI: 10.1016/j.aca.2012.06.015] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2012] [Revised: 06/08/2012] [Accepted: 06/10/2012] [Indexed: 11/15/2022]
|
24
|
Longyant S, Senapin S, Sanont S, Wangman P, Chaivisuthangkura P, Rukpratanporn S, Sithigorngul P. Monoclonal antibodies against extra small virus show that it co-localizes with Macrobrachium rosenbergii nodavirus. DISEASES OF AQUATIC ORGANISMS 2012; 99:197-205. [PMID: 22832718 DOI: 10.3354/dao02482] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The capsid protein (CP) gene of extra small virus (XSV) expressed in Escherichia coli as a 42 kDa glutathione S-transferase (GST)-fusion protein (GST-XCP) or a 20 kDa His6-fusion protein (His6-XCP) were purified by sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE), combined, and used to immunize Swiss mice to produce monoclonal antibodies (MAbs). Using dot blot, Western blot, and immunohistochemistry (IHC) methods, 4 MAbs specific to the XSV CP detected XSV in the freshwater prawn Macrobrachium rosenbergii without cross-reaction to host proteins or to proteins of Macrobrachium rosenbergii nodavirus (MrNV) or 5 of the most pathogenic viruses of penaeid shrimp. In dot blots, the combined MAbs could detect down to ~10 to 20 fmol µl-1 of purified GST-XCP protein, which was somewhat more sensitive compared to any single MAb. Used in conjunction with an MrNV-specific MAb, white tail disease (WTD) was diagnosed more effectively. However, the sensitivity at which the combined 4 MAbs detected XSV CP was 1000-fold lower than XSV RNA detected by RT-PCR. IHC analysis of M. rosenbergii tissue sections using the MAbs showed XSV infection to co-localize at variable loads with MrNV infection in heart and muscle cells as well as cells of connective tissues in the hepatopancreas. Since XSV histopathology remained prominent in tissues of some prawns in which MAb reactivity for MrNV was low compared to MAb reactivity for XSV, XSV might play some role in WTD severity.
Collapse
Affiliation(s)
- Siwaporn Longyant
- Department of Biology, Srinakharinwirot University, Bangkok 10110, Thailand
| | | | | | | | | | | | | |
Collapse
|
25
|
Wangman P, Longyant S, Chaivisuthangkura P, Sridulyakul P, Rukpratanporn S, Sithigorngul P. Penaeus monodon nucleopolyhedrovirus detection using an immunochromatographic strip test. J Virol Methods 2012; 183:210-4. [PMID: 22580094 DOI: 10.1016/j.jviromet.2012.04.016] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2011] [Revised: 04/03/2012] [Accepted: 04/30/2012] [Indexed: 12/16/2022]
Abstract
An immunochromatographic strip test is described for detection of the polyhedrin protein of Penaeus monodon nucleopolyhedrovirus (PemoNPV). The test employs one monoclonal antibody (MAb MBV5) conjugated to colloidal gold to bind to polyhedrin protein and a 1:1:1 mixture of 3 other MAbs (MBV8, 14 and 21) to capture colloidal-gold MAb-protein complexes at a test (T) line on the nitrocellulose strip. A downstream control (C) line of goat anti-mouse immunoglobulin G (GAM) antibody is used to capture excess free colloidal-gold conjugated MBV5 to validate test performance. Heating of homogenates of PemoNPV-infected P. monodon postlarvae prepared in PBS for 30min was necessary to maximize T line color intensity, and homogenates of infected postlarvae could still be scored as PemoNPV-positive when diluted 1:64. A strip test result was obtained within 15min of sample application, and although about 200-fold lower than a one-step PCR test for PemoNPV, its detection sensitivity was comparable to a dot blot. Due to its simplicity not reliant on sophisticated equipment or specialized skills, the strip test could be adopted to screen easily for PemoNPV infections at shrimp hatcheries and farms.
Collapse
Affiliation(s)
- Pradit Wangman
- Department of Biology, Srinakharinwirot University, Bangkok 10110, Thailand
| | | | | | | | | | | |
Collapse
|
26
|
Wangman P, Senapin S, Chaivisuthangkura P, Longyant S, Rukpratanporn S, Sithigorngul P. Production of monoclonal antibodies specific to Macrobrachium rosenbergii nodavirus using recombinant capsid protein. DISEASES OF AQUATIC ORGANISMS 2012; 98:121-131. [PMID: 22436460 DOI: 10.3354/dao02431] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The gene encoding the capsid protein of Macrobrachium rosenbergii nodavirus (MrNV) was cloned into pGEX-6P-1 expression vector and then transformed into the Escherichia coli strain BL21. After induction, capsid protein-glutathione-S-transferase (GST-MrNV; 64 kDa) was produced. The recombinant protein was separated using SDS-PAGE, excised from the gel, electro-eluted and then used for immunization for monoclonal antibody (MAb) production. Four MAbs specific to the capsid protein were selected and could be used to detect natural MrNV infections in M. rosenbergii by dot blotting, Western blotting and immunohistochemistry without cross-reaction with uninfected shrimp tissues or other common shrimp viruses. The detection sensitivity of the MAbs was 10 fmol µl-1 of the GST-MrNV, as determined using dot blotting. However, the sensitivity of the MAb on dot blotting with homogenate from naturally infected M. rosenbergii was approximately 200-fold lower than that of 1-step RT-PCR. Immunohistochemical analysis using these MAbs with infected shrimp tissues demonstrated staining in the muscles, nerve cord, gill, heart, loose connective tissue and inter-tubular tissue of the hepatopancreas. Although the positive reactions occurred in small focal areas, the immunoreactivity was clearly demonstrated. The MAbs targeted different epitopes of the capsid protein and will be used to develop a simple immunoassay strip test for rapid detection of MrNV.
Collapse
Affiliation(s)
- Pradit Wangman
- Department of Biology, Faculty of Science, Srinakharinwirot University, Sukhumvit 23, Bangkok 10110, Thailand
| | | | | | | | | | | |
Collapse
|
27
|
Li X, Wang L, Shi X, Zhao D, Yang J, Yang S, Zhang G. Development of an immunochromatographic strip for rapid detection of antibodies against classical swine fever virus. J Virol Methods 2012; 180:32-7. [DOI: 10.1016/j.jviromet.2011.12.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2011] [Revised: 12/10/2011] [Accepted: 12/13/2011] [Indexed: 11/17/2022]
|
28
|
Liu YH, Xie R, Guo YR, Zhu GN, Tang FB. Comparison of homologous and heterologous formats in nanocolloidal gold-based immunoassays for parathion residue determination. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2012; 47:475-483. [PMID: 22424073 DOI: 10.1080/03601234.2012.663613] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The effectiveness of homologous and heterologous formats in a nanocolloidal gold-based immunoassay for pesticide residue determination was investigated. Parathion, one of the most toxic organophosphorus pesticides, was used as the target analyte. One-step homologous and heterologous test strips based on a nanocolloidal gold-labeled monoclonal antibody were developed for the rapid detection of parathion residues. The results showed that the heterologous format was more effective than the homologous format, being more sensitive, more specific to parathion and more tolerant of matrix interferences. The best competitive hapten was found to have a moderate heterology and the opposite electronic distribution to the immunizing hapten. The detection limits for parathion using the preferred heterologous strip were 1 μg/L in water samples and 5 μg/kg in soil and food samples.
Collapse
Affiliation(s)
- Yi H Liu
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang, P R China
| | | | | | | | | |
Collapse
|
29
|
Pengsuk C, Longyant S, Rukpratanporn S, Chaivisuthangkura P, Sridulyakul P, Sithigorngul P. Differentiation among the Vibrio cholerae serotypes O1, O139, O141 and non-O1, non-O139, non-O141 using specific monoclonal antibodies with dot blotting. J Microbiol Methods 2011; 87:224-33. [PMID: 21851839 DOI: 10.1016/j.mimet.2011.07.022] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2011] [Revised: 07/27/2011] [Accepted: 07/28/2011] [Indexed: 10/17/2022]
Abstract
Seven different monoclonal antibodies (MAbs) specific to only Vibrio cholerae were produced using a combination of five representative serotypes of V. cholerae for immunization. The first three MAbs (VC-93, VC-82 and VC-223) were specific to the V. cholerae serogroup O1 with different avidity for the serotypes O1 Inaba and O1 Ogawa. The fourth and the fifth MAbs were specific to V. cholerae O139 (VC-812) or O141 (VC-191) serogroups, respectively. The sixth MAb (VC-26) bound to all three serogroups of V. cholerae. The seventh MAb (VC-63) bound to all twenty five isolates of V. cholerae used in this study. None of the seven MAbs showed cross-reactivity with other Vibrio spp. or closely-related V. cholerae species, V. mimicus or other gram-negative bacteria. The eighth MAbs (VC-201) specific to almost all Vibrio spp. was also obtained. In dot blotting, these MAbs can be used to detect a diluted pure culture of V. cholerae in solution with a sensitivity range of from 10(5) to 10(7) CFU ml(-1). However, the detection capability could be improved equivalent to that of PCR technique after preincubation of samples in alkaline peptone water (APW). Thus, these MAbs constitute convenient immunological tools that can be used for simple, rapid and simultaneous direct detection and differentiation of the individual serotypes of V. cholerae in complex samples, such as food and infected animals, without the requirement for bacterial isolation or biochemical characterization.
Collapse
Affiliation(s)
- Chalinan Pengsuk
- Department of Biology, Srinakharinwirot University, Bangkok 10110, Thailand
| | | | | | | | | | | |
Collapse
|
30
|
Development and preliminary application of an immunochromatographic strip for rapid detection of infection with porcine reproductive and respiratory syndrome virus in swine. J Virol Methods 2011; 176:46-52. [PMID: 21663767 DOI: 10.1016/j.jviromet.2011.05.034] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2011] [Revised: 05/05/2011] [Accepted: 05/25/2011] [Indexed: 11/23/2022]
Abstract
A "strip test" to detect porcine reproductive and respiratory syndrome virus (PRRSV) was established using a monoclonal antibody (MAb) 2D7 conjugated with colloidal gold. Two MAbs binding to protein N at different epitopes, 2D7 and 1G7 were obtained. In the test, samples of PRRSV bound to colloidal gold-conjugated MAb 2D7. The complex was then captured by MAb 1G7 at the test line (T) on the nitrocellulose membrane, presenting a purple band. If the sample did not contain PRRSV or if the quantity of PRRSV was less than that required for the kit, only the control line (C), in which goat anti-mouse antibody was added as the capture antibody, was present. Results from the sensitivity test of the kit demonstrated that the lowest detected quantity of PRRSV is 2.9 × 10(3)TCID(50)/ml. In clinical trials, the specificity and the sensitivity of this kit are 98.1% and 88.4%, respectively, compared with RT-PCR. Furthermore, this kit was found to be efficient in three areas of China and appears to have better results in practical applications than in empirical studies. In summary, this kit has not only high rates of specificity and sensitivity but also has the beneficial features such as efficiency, convenience and speed.
Collapse
|
31
|
Kim GY, Yang GM, Park SB, Kim YH, Lee KJ, Son JY, Kim HJ, Lee SR. Rapid Detection Kit for Salmonella typhimurium. ACTA ACUST UNITED AC 2011. [DOI: 10.5307/jbe.2011.36.2.140] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
32
|
Sithigorngul P, Rukpratanporn S, Chaivisuthangkura P, Sridulyakul P, Longyant S. Simultaneous and rapid detection of white spot syndrome virus and yellow head virus infection in shrimp with a dual immunochromatographic strip test. J Virol Methods 2011; 173:85-91. [PMID: 21256869 DOI: 10.1016/j.jviromet.2011.01.011] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2010] [Revised: 12/22/2010] [Accepted: 01/10/2011] [Indexed: 02/06/2023]
Affiliation(s)
- Paisarn Sithigorngul
- Department of Biology, Srinakharinwirot University, Sukhumvit 23, Bangkok 10110, Thailand.
| | | | | | | | | |
Collapse
|
33
|
Detection of infectious myonecrosis virus using monoclonal antibody specific to N and C fragments of the capsid protein expressed heterologously. J Virol Methods 2010; 171:141-8. [PMID: 21029750 DOI: 10.1016/j.jviromet.2010.10.015] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2010] [Revised: 10/14/2010] [Accepted: 10/19/2010] [Indexed: 01/10/2023]
Abstract
The gene encoding the capsid protein in ORF1 of the genome of infectious myonecrosis virus (IMNV) (GenBank AY570982) was amplified into three parts named CP-N (nucleotides 2248-3045), CP-I (nucleotides 3046-3954) and CP-C (nucleotides 3955-4953). The CP-N fragment was inserted into expression vector pTYB1 while CP-I and CP-C were each inserted into expression vector pGEX-6P-1 for transformation of BL21 E. coli strain. After induction, intein-CP-N (84 kDa), glutathione-S-transferase (GST)-CP-I (60 kDa) and GST-CP-C (62 kDa) fusion proteins were produced. They were separated by SDS-PAGE and electroeluted before immunization of Swiss mice for monoclonal antibody (MAb) production. Two MAbs specific to CP-N and one MAb specific to CP-C were selected for use for detection of natural IMNV infections in Penaeus vannamei by dot blotting, Western blotting and immunohistochemistry. There was no cross-reaction with shrimp tissues or common shrimp viruses including white spot syndrome virus (WSSV), yellow head virus (YHV), Taura syndrome virus (TSV), Penaeus monodon nucleopolyhedrovirus (PemoNPV), Penaeus stylirostris densovirus (PstDNV) and Penaeus monodon densovirus (PmDNV). The detection sensitivities of the MAbs were approximately 6 fmol/spot of purified recombinant intein-CP-N protein and 8 fmol/spot of GST-CP-C as determined by dot blotting. A combination of all three MAbs resulted in a twofold increase in sensitivity over use of any single MAb. However, this sensitivity was approximately 10 times lower than that of one-step RT-PCR using the same sample. Immunohistochemical analysis using MAbs specific to CP-N and CP-C in IMNV-infected shrimp revealed intense staining patterns in muscles, the lymphoid organ, gills, the heart, hemocytes and connective tissue.
Collapse
|
34
|
Detection of infectious myonecrosis virus in penaeid shrimps using immunoassays: usefulness of monoclonal antibodies directed to the viral major capsid protein. Arch Virol 2010; 156:9-16. [DOI: 10.1007/s00705-010-0810-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2010] [Accepted: 09/14/2010] [Indexed: 10/19/2022]
|
35
|
Su J, Yang H, Chen J, Yin H, Tang R, Xie Y, Song K, Huyan T, Wang H, Wang W, Xue X. Development of a Class-specific Immunochromatographic Strip Test for the Rapid Detection of Organophosphorus Pesticides With a Thiophosphate Group. Hybridoma (Larchmt) 2010; 29:291-9. [DOI: 10.1089/hyb.2009.0111] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Jing Su
- Faculty of Life Science, Northwestern Polytechnical University, Xian, Shanxi, P.R. China
- Nantong Center for Disease Control and Prevention, Nantong Jiangsu, P.R. China
| | - Hui Yang
- Faculty of Life Science, Northwestern Polytechnical University, Xian, Shanxi, P.R. China
| | - Jialei Chen
- Medical College, Xian Jiaotong University, Xian, Shanxi, P.R. China
| | - Huancai Yin
- Faculty of Life Science, Northwestern Polytechnical University, Xian, Shanxi, P.R. China
| | - Ruihua Tang
- Faculty of Life Science, Northwestern Polytechnical University, Xian, Shanxi, P.R. China
| | - Yuwei Xie
- Faculty of Life Science, Northwestern Polytechnical University, Xian, Shanxi, P.R. China
| | - Kai Song
- Faculty of Life Science, Northwestern Polytechnical University, Xian, Shanxi, P.R. China
| | - Ting Huyan
- Faculty of Life Science, Northwestern Polytechnical University, Xian, Shanxi, P.R. China
| | - Hua Wang
- Faculty of Life Science, Northwestern Polytechnical University, Xian, Shanxi, P.R. China
| | - Wei Wang
- Faculty of Life Science, Northwestern Polytechnical University, Xian, Shanxi, P.R. China
| | - Xiaoping Xue
- Faculty of Life Science, Northwestern Polytechnical University, Xian, Shanxi, P.R. China
| |
Collapse
|
36
|
Seibert CH, Borsa M, Rosa RD, Cargnin-Ferreira E, Pereira AML, Grisard EC, Zanetti CR, Pinto AR. Detection of major capsid protein of infectious myonecrosis virus in shrimps using monoclonal antibodies. J Virol Methods 2010; 169:169-75. [PMID: 20678523 DOI: 10.1016/j.jviromet.2010.07.020] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2010] [Revised: 07/16/2010] [Accepted: 07/22/2010] [Indexed: 12/12/2022]
Abstract
Infectious myonecrosis virus (IMNV) has been causing a progressive disease in farm-reared shrimps in Brazil and Indonesia. Immunodiagnostic methods for IMNV detection, although reliable, are not employed currently because monoclonal antibodies (MAbs) against this virus are not available. In this study, a fragment of the IMNV major capsid protein gene, comprising amino acids 300-527 (IMNV(300-527)), was cloned and expressed in Escherichia coli. The nucleotide sequence of the recombinant IMNV(300-527) fragment displayed a high degree of identity to the major capsid protein of IMNV isolates from Brazil (99%) and Indonesia (98%). Ten MAbs were generated against the expressed fragment, and eight of these, mostly IgG(2a) or IgG(2b), were able to bind to IMNV in tissue extracts from shrimps infected naturally in immunodot-blot assays. Six of these MAbs recognized a approximately 100 kDa protein in a Western-blot, which is the predicted mass of IMNV major capsid protein, and also bound to viral inclusions present in muscle fibroses and in coagulative myonecrosis, as demonstrated by immunohistochemistry. Among all those MAbs created, four did not cross-react with non-infected shrimp tissues; this observation supports their applicability as a sensitive and specific immunodiagnosis of IMNV infection in shrimps.
Collapse
Affiliation(s)
- Caroline H Seibert
- Departamento de Microbiologia, Imunologia e Parasitologia, Universidade Federal de Santa Catarina, 88040-970, Florianópolis, SC, Brazil
| | | | | | | | | | | | | | | |
Collapse
|
37
|
Senapin S, Thaowbut Y, Gangnonngiw W, Chuchird N, Sriurairatana S, Flegel TW. Impact of yellow head virus outbreaks in the whiteleg shrimp, Penaeus vannamei (Boone), in Thailand. JOURNAL OF FISH DISEASES 2010; 33:421-30. [PMID: 20158577 PMCID: PMC7194288 DOI: 10.1111/j.1365-2761.2009.01135.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2009] [Revised: 08/24/2009] [Accepted: 12/03/2009] [Indexed: 05/24/2023]
Abstract
Yellow head virus (YHV) is known as a major pathogen in the black tiger shrimp, Penaeus (Penaeus) monodon. It can also cause serious mortality in farmed whiteleg shrimp, Penaeus (Litopenaeus) vannamei. However, there is no published information on the economic and/or production impact of the disease in P. vannamei. Shrimp with gross signs of YHV disease (faded body colour and 60-70% mortality) were observed in 20 study farms rearing P. vannamei in the central part of Thailand from the end of 2007 through early 2008. The estimated economic loss for these farms according to the Thai Animal Aquaculture Association was approximately US$3 million. Detailed sequence analysis of RT-PCR amplicons from shrimp in all the study ponds revealed the presence of YHV Type 1b (YHV-1b) alone (characterized by a 162-bp deletion in the ORF3 region encoding the structural gene for gp116) and the absence of YHV Type 1a (YHV-1a), the original YHV type reported from Thailand. Despite the large 162-bp deletion (= 54 deduced amino acids) in the gp116 structural gene, histopathology of YHV-1b infections was identical to that of YHV-1a infections, and electron microscopy revealed that YHV-1b virions were morphologically indistinguishable from those previously reported for YHV-1a. In addition, an existing commercial RT-PCR detection kit and an immunochromatographic test strip for the detection of YHV were proven to have been valid tests for both YHV-1b and YHV-1a. The source of the virus for these outbreaks was unlikely to have been the post-larvae used to stock the ponds, as they were derived from domesticated specific pathogen-free stocks free of YHV. Thus, it is possible that they originated from an unknown, natural reservoir.
Collapse
Affiliation(s)
- S Senapin
- National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Pathumthani, Thailand.
| | | | | | | | | | | |
Collapse
|
38
|
Li Y, Hou L, Ye J, Liu X, Dan H, Jin M, Chen H, Cao S. Development of a convenient immunochromatographic strip for the diagnosis of infection with Japanese encephalitis virus in swine. J Virol Methods 2010; 168:51-6. [PMID: 20433870 DOI: 10.1016/j.jviromet.2010.04.015] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2009] [Revised: 04/07/2010] [Accepted: 04/19/2010] [Indexed: 10/19/2022]
Abstract
Japanese encephalitis (JE) is caused by the Japanese encephalitis virus (JEV). It is a major public health problem in Asia. JEV infects swine which results in fatal encephalitis, abortion and stillbirth in pregnant sow, and hypospermia in boars. Swine is a viral amplifier, and thus plays a critical role in JEV transmission. Thus, development of a rapid method for JEV detection in swine is required for clinical JE diagnosis, as well as to suppress viral spread. In this study, a convenient and rapid immunochromatographic strip (ICS) was developed for detecting JEV in swine using two monoclonal antibodies (MAbs) (2A2 and 4D1) against the E protein of JEV. Results showed that colloidal gold-conjugated MAbs 2A2 (CG-MAb) bond with JEV and the resulting complex was held by the other MAb 4D1 at the test line to give a reddish-purple band. Sensitivity tests demonstrated that ICS can detect 2.5x10(5)PFU of JEV. The clinical screening results showed that the specificity and sensitivity of the ICS were 99.3% and 85.7% respectively as compared to that of RT-PCR. This suggests that the MAbs-based ICS test can be used as a convenient method for the rapid detection of JEV in infected swine samples.
Collapse
Affiliation(s)
- Yaoming Li
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | | | | | | | | | | | | | | |
Collapse
|
39
|
Ngom B, Guo Y, Wang X, Bi D. Development and application of lateral flow test strip technology for detection of infectious agents and chemical contaminants: a review. Anal Bioanal Chem 2010; 397:1113-35. [PMID: 20422164 DOI: 10.1007/s00216-010-3661-4] [Citation(s) in RCA: 293] [Impact Index Per Article: 20.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2010] [Revised: 03/10/2010] [Accepted: 03/16/2010] [Indexed: 01/10/2023]
Abstract
Recent progress in the laboratory has been a result of improvements in rapid analytical techniques. An update of the applications of lateral flow tests (also called immunochromatographic assay or test strip) is presented in this review manuscript. We emphasized the description of this technology in the detection of a variety of biological agents and chemical contaminants (e.g. veterinary drugs, toxins and pesticides). It includes outstanding data, such as sample treatment, sensitivity, specificity, accuracy and reproducibility. Lateral flow tests provide advantages in simplicity and rapidity when compared to the conventional detection methods.
Collapse
Affiliation(s)
- Babacar Ngom
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
| | | | | | | |
Collapse
|
40
|
Simple immunoblot and immunohistochemical detection of Penaeus stylirostris densovirus using monoclonal antibodies to viral capsid protein expressed heterologously. J Virol Methods 2009; 162:126-32. [PMID: 19654023 DOI: 10.1016/j.jviromet.2009.07.026] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2009] [Revised: 07/23/2009] [Accepted: 07/27/2009] [Indexed: 12/18/2022]
Abstract
Penaeus stylirostris densovirus (PstDNV), called formerly infectious hypodermal and hematopoietic necrosis virus (IHHNV), is an important shrimp pathogen which can cause mortality in the blue shrimp Penaeus (Litopenaeus) stylirostris and stunting in the whiteleg shrimp Penaeus (Litopenaeus) vannamei. Five monoclonal antibodies (MAbs) were produced against the 37kDa capsid protein 3 (CP3) of PstDNV expressed heterologously in the form of a fusion protein with glutathione-S-transferase called GST-CP3. All MAbs belonged to the IgG2b subclass and could bind to GST-CP3 at 300 pg/spot in immunodot-blot tests. They could detect CP3 in naturally infected shrimp extracts by Western blotting and dot blotting and in shrimp tissues by immunohistochemistry without cross-reactivity to extracts from uninfected shrimps or shrimps infected with several other viruses. Although dot blot assay sensitivity was approximately 1000 times lower than that of one step PCR for PstDNV, it easily detected PstDNV infections in field samples of Penaeus monodon and Penaeus vannamei.
Collapse
|
41
|
Mekata T, Sudhakaran R, Kono T, U-taynapun K, Supamattaya K, Suzuki Y, Sakai M, Itami T. Real-time reverse transcription loop-mediated isothermal amplification for rapid detection of yellow head virus in shrimp. J Virol Methods 2009; 162:81-7. [PMID: 19646483 PMCID: PMC7112779 DOI: 10.1016/j.jviromet.2009.07.018] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2009] [Revised: 07/13/2009] [Accepted: 07/21/2009] [Indexed: 12/03/2022]
Abstract
A real-time reverse transcription loop-mediated isothermal amplification (real-time RT-LAMP) method was applied for detecting the replicase polyprotein-encoding gene of yellow head virus (YHV) in shrimp, Penaeus monodon. It is a novel, gene-specific assay that amplifies nucleic acid with high specificity, sensitivity and rapidity under isothermal conditions using a set of six specially designed primers that recognize eight distinct sequences of the target gene. This method works with even low copies of DNA and is based on magnesium pyrophosphate turbidity detection by an inexpensive photometer for quantitative analysis. A user-friendly protocol was developed with optimal conditions standardized at 63 °C for 60 min. With this protocol, the assay sensitivity was 10 times higher than the widely used YHV nested RT-PCR system. Cross-reactivity analysis using other shrimp virus DNA/cDNA and YHV-negative shrimp demonstrated high specificity of the assay. The real-time RT-LAMP method was performed also for an internal control gene, EF-1α, to compare with the expressions of the YHV gene in different organs of infected shrimp, and the resulting standard curves showed high correlation coefficient values. These results suggest that this assay is applicable widely as a new quantitative detection method in the pursuit of YHV-free shrimp culture.
Collapse
Affiliation(s)
- Tohru Mekata
- Interdisciplinary Graduate School of Agriculture and Engineering, University of Miyazaki, 1-1 Gakuen Kibanadai-nishi, 889-2192 Miyazaki, Japan
| | | | | | | | | | | | | | | |
Collapse
|
42
|
Walker PJ, Mohan CV. Viral disease emergence in shrimp aquaculture: origins, impact and the effectiveness of health management strategies. REVIEWS IN AQUACULTURE 2009; 1:125-154. [PMID: 32328167 PMCID: PMC7169130 DOI: 10.1111/j.1753-5131.2009.01007.x] [Citation(s) in RCA: 87] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2008] [Accepted: 02/09/2009] [Indexed: 05/06/2023]
Abstract
Shrimp aquaculture has grown rapidly over several decades to become a major global industry that serves the increasing consumer demand for seafood and has contributed significantly to socio-economic development in many poor coastal communities. However, the ecological disturbances and changes in patterns of trade associated with the development of shrimp farming have presented many of the pre-conditions for the emergence and spread of disease. Shrimp are displaced from their natural environments, provided artificial or alternative feeds, stocked in high density, exposed to stress through changes in water quality and are transported nationally and internationally, either live or as frozen product. These practices have provided opportunities for increased pathogenicity of existing infections, exposure to new pathogens, and the rapid transmission and transboundary spread of disease. Not surprisingly, a succession of new viral diseases has devastated the production and livelihoods of farmers and their sustaining communities. This review examines the major viral pathogens of farmed shrimp, the likely reasons for their emergence and spread, and the consequences for the structure and operation of the shrimp farming industry. In addition, this review discusses the health management strategies that have been introduced to combat the major pathogens and the reasons that disease continues to have an impact, particularly on poor, small-holder farmers in Asia.
Collapse
Affiliation(s)
- Peter J. Walker
- CSIRO Livestock Industries, Australian Animal Health Laboratory, Geelong, Vic., Australia
| | - C. V. Mohan
- Network of Aquaculture Centers Asia‐Pacific (NACA), Kasetsart University Campus, Ladyao, Jatujak, Bangkok, Thailand
| |
Collapse
|
43
|
Li X, Zhang G, Liu Q, Feng C, Wang X, Yang Y, Xiao Z, Yang J, Xing G, Zhao D, Cai S, Chen H. Development of immunoassays for the detection of sulfamethazine in swine urine. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2009; 26:314-25. [DOI: 10.1080/02652030802520860] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
44
|
Zhu J, Chen W, Lu Y, Cheng G. Development of an immunochromatographic assay for the rapid detection of bromoxynil in water. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2008; 156:136-142. [PMID: 18255209 DOI: 10.1016/j.envpol.2007.12.020] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2007] [Revised: 12/13/2007] [Accepted: 12/15/2007] [Indexed: 05/25/2023]
Abstract
A rapid immunochromatographic one-step strip test was developed to specifically determine bromoxynil in surface and drinking water by competitive inhibition with the nano colloidal gold-conjugated monoclonal antibody (mAb). Bromoxynil standard samples of 0.01-10 mg L(-1) in water were tested by this method and the visual limit was 0.06 mg L(-1). The assay only required 5 min and one-step by dispensing a drop of sample solution onto a strip. Parallel analysis of water samples with bromoxynil showed comparable results from one-step strip test and ELISA. Therefore, the one-step strip test is very useful as a screening method for qualitative detection of bromoxynil in water.
Collapse
Affiliation(s)
- Jiang Zhu
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | | | | | | |
Collapse
|
45
|
Wijegoonawardane PKM, Cowley JA, Walker PJ. Consensus RT-nested PCR detection of yellow head complex genotypes in penaeid shrimp. J Virol Methods 2008; 153:168-75. [PMID: 18706929 DOI: 10.1016/j.jviromet.2008.07.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2008] [Revised: 07/14/2008] [Accepted: 07/17/2008] [Indexed: 12/11/2022]
Abstract
A consensus RT-nested (n)PCR is described that detects the six distinct genotypic variants in the yellow head virus (YHV) complex. The PCR primers targeted ORF1b gene regions more highly conserved amongst the reference strains of YHV (genotype 1) and gill-associated virus (GAV, genotype 2) and a set of 57 field isolates containing multiple representatives of each genotype. The test employed short PCR (359 bp) and nPCR (147 bp) amplicons to minimise the effects of RNA degradation. To ensure < or = 8-primer degeneracy, two primers were designed to each site, one accommodating sequence variations amongst genotype 1 isolates and the other variations amongst isolates of the other genotypes. The analytical sensitivity limits of the PCR and nPCR were estimated to be approximately 1250 and approximately 1.25 RNA copies, respectively. The superior group-specificity of the consensus RT-nPCR compared to other OIE-recommended PCR tests for YHV/GAV was demonstrated using RNA from 17 Penaeus monodon shrimp infected with representatives of each of the six genotypes. Phylogenetic analysis using the 94 nt ORF1b gene sequence spanned by the nPCR primers generated genotype assignments that were consistent with those obtained using the extended 671 nt sequence used for the initial identification of genotypes.
Collapse
|
46
|
Wijegoonawardane PKM, Cowley JA, Phan T, Hodgson RAJ, Nielsen L, Kiatpathomchai W, Walker PJ. Genetic diversity in the yellow head nidovirus complex. Virology 2008; 380:213-25. [PMID: 18768192 PMCID: PMC7103379 DOI: 10.1016/j.virol.2008.07.005] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2008] [Revised: 05/23/2008] [Accepted: 07/08/2008] [Indexed: 12/14/2022]
Abstract
Penaeus monodon shrimp collected from across the Indo-Pacific region during 1997-2004 were screened for the presence of yellow head-related viruses. Phylogenetic analyses of amplified ORF1b gene segments identified at least six distinct genetic lineages (genotypes). Genotype 1 (YHV) was detected only in shrimp with yellow head disease. Genotype 2 (GAV) was detected in diseased shrimp with the less severe condition described as mid-crop mortality syndrome and in healthy shrimp from Australia, Thailand and Vietnam. Other genotypes occurred commonly in healthy shrimp. Sequence comparisons of structural protein genes (ORF2 and ORF3), intergenic regions (IGRs) and the long 3'-UTR supported the delineation of genotypes and identified both conserved and variant structural features. In putative transcription regulating sequences (TRSs) encompassing the sub-genomic mRNA 5'-termini, a core motif (5'-GUCAAUUACAAC-3') is absolutely conserved. A small (83 nt) open reading frame (ORF4) in the 3'-UTR of GAV is variously truncated in all other genotypes and a TRS-like element preceding ORF4 is invariably corrupted by a A>G/U substitution in the central core motif (5'-UU(G/U)CAAC-3'). The data support previous evidence that ORF4 is a non-functional gene under construction or deconstruction. The 3'-UTRs also contain predicted 3'-terminal hairpin-loop structures that are preserved in all genotypes by compensatory nucleotide substitutions, suggesting a role in polymerase recognition for minus-strand RNA synthesis.
Collapse
|
47
|
Zhu Y, Li L, Wang Z, Chen Y, Zhao Z, Zhu L, Wu X, Wan Y, He F, Shen J. Development of an immunochromatography strip for the rapid detection of 12 fluoroquinolones in chicken muscle and liver. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2008; 56:5469-5474. [PMID: 18558699 DOI: 10.1021/jf800274f] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
A rapid and sensitive colloidal gold immunochromatography test strip based on one monoclonal antibody with broad-specificity, which can detect 12 fluoroquinolones (FQs), was developed. Antigen and goat anti-mouse IgG were respectively drawn on NC membrane as test line and control line. Gold-labeled antibody was added on a pad and put on one end of the membrane. Fluoroquinolones in sample solution compete with antigen combined on NC membrane for the gold-labeled antibody. When enough fluoroquinolone exists, the test line vanishes as there are no spare gold-labeled antibodies that can bind with antigen on the membrane. The control line always exists when the antibody is activated. The lowest detection limits of the FQs in spiked chicken muscle and chicken liver samples were 25 ng mL(-1) for norfloxacin and pefloxacin. The lowest detection limit for the other 10 FQs (enrofloxacin, ciprofloxacin, norfloxacin, flumequine, pefloxacin, ofloxacin, lomefloxacin, enoxacin, danofloxacin, amifloxacin, oxolinic acid, and marbofloxacin) was 50 ng mL(-1). The whole process involving sample preparation and detection can be finished in <10 min. The results demonstrate that the developed method can be potentially used as a screening tool for the determination of 12 FQ residues in a large amount of samples on site.
Collapse
Affiliation(s)
- Yan Zhu
- Department of Veterinary Pharmacology and Toxicology, College of Veterinary Medicine, China Agricultural University, Beijing 100094, China
| | | | | | | | | | | | | | | | | | | |
Collapse
|
48
|
Development of a one-step strip for the detection of triazophos residues in environmental samples. Anal Biochem 2008; 377:202-8. [DOI: 10.1016/j.ab.2008.03.013] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2008] [Revised: 03/10/2008] [Accepted: 03/10/2008] [Indexed: 11/18/2022]
|
49
|
Shi C, Zhao S, Zhang K, Hong G, Zhu Z. Preparation of colloidal gold immunochromatography strip for detection of methamidophos residue. J Environ Sci (China) 2008; 20:1392-1397. [PMID: 19202881 DOI: 10.1016/s1001-0742(08)62238-x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Methamidophos (Met) is a broad spectrum organophosphorus insecticide and acaricide. Even a trace of its residue is harmful to humans and many animals. In this study, the synthesis and identification of colloidal gold particles and antibody-colloidal gold conjugates were performed, and the preparation of colloidal gold immunochromatography strip was conducted for detection of Met residue. The size of colloidal gold particles was checked using a transmission electron microscope (TEM). The formation of antibody-colloidal gold conjugates was monitored by UV/Vis spectroscopy. The preparation of colloidal gold immunochromatography strips, analysis of Met standard solutions, and other four pesticides and vegetable samples were operated with common methods and principals. The TEM images showed the average diameter of colloidal gold particles was almost the same size: approximately 40.0 nm in diameter. For the conjugation of colloidal gold and monoclonal antibody (MAb), 0.03 mg/ml of MAb was confirmed to be the minimum amount for stabilization of colloidal gold. With the prepared colloidal gold immunochromatography test strip to determine the standard Met solution, the results demonstrated a detection limit of approximately 1.0 mg/ml. Cross-reaction indicated that the strip had a high specificity to Met. The results of 10 green vegetable sample tests confirmed that one sample was positive by HPLC analysis. There was evidence to suggest that colloidal gold particles and antibody-colloidal gold conjugates were synthesized successfully. The prepared colloidal gold immunochromatography strip was applicable for preliminary screening of Met residue.
Collapse
Affiliation(s)
- Chenggang Shi
- The Third Affiliated Hospital of Sun Yat-sen University of Medical Sciences, Guangzhou 510630, China.
| | | | | | | | | |
Collapse
|
50
|
Sithigorngul P, Rukpratanporn S, Pecharaburanin N, Suksawat P, Longyant S, Chaivisuthangkura P, Sithigorngul W. A simple and rapid immunochromatographic test strip for detection of pathogenic isolates of Vibrio harveyi. J Microbiol Methods 2007; 71:256-64. [DOI: 10.1016/j.mimet.2007.09.012] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2007] [Revised: 09/14/2007] [Accepted: 09/14/2007] [Indexed: 11/27/2022]
|