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Aly NSM, Kim HS, Marei YM, Elhamshary AS, Bayoumi IR, Omar RE, Mohammed DA, Miyoshi SI, Rashed GA. Diagnosis of Toxoplasmosis Using Surface Antigen Grade 1 Detection by ELISA, Nano-Gold ELISA, and PCR in Pregnant Women. Int J Nanomedicine 2023; 18:1335-1345. [PMID: 36974071 PMCID: PMC10039636 DOI: 10.2147/ijn.s401876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Accepted: 03/14/2023] [Indexed: 03/29/2023] Open
Abstract
Introduction The accurate diagnosis of toxoplasmosis has critical importance in pregnant women. Nanotechnology and molecular biology are making possible opportunities for accurate and rapid diagnosis of many infectious diseases. Aim and Methods The aim of our study was to compare nano-gold ELISA with ELISA and PCR for diagnosis of toxoplasmosis using Toxoplasma surface antigen grade 1 (SAG1) in pregnant women seeking antenatal care in outpatient clinics. Results PCR showed the highest diagnostic values than nano-gold ELISA and ELISA regarding sensitivity (97.3% versus 89.2% and 83.8%); specificity (100% versus 94% and 88%); and diagnostic accuracy (98.9% versus 91.95% and 86.2%), respectively. There is no statistical difference between PCR and nanogold ELISA results. Discussion Nano-gold ELISA had a significant improvement in diagnosis than the traditional ELISA method. Most likely with the assistance of nanoparticles, more antibodies enter the antigen-antibody complex because of the considerable improvement in the surface area of nano-gold particles. Conclusion Although PCR had higher diagnostic values than nano ELISA, nano ELISA is cheaper and easier than PCR. We recommend nano-gold ELISA with SAG1 as a promising technique in the diagnosis of toxoplasmosis and survey studies.
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Affiliation(s)
- Nagwa S M Aly
- Department of Parasitology, Benha Faculty of Medicine, Benha University, Benha, 13511, Egypt
- Division of International Infectious Diseases Control, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, 700-8530, Japan
- Correspondence: Nagwa SM Aly, Department of Parasitology, Benha Faculty of Medicine, Benha University, Fareed Nada Street, Benha, 13511, Egypt, Tel +2-13-9101186, Email
| | - Hye-Sook Kim
- Division of International Infectious Diseases Control, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, 700-8530, Japan
| | - Yasmin M Marei
- Medical Biochemistry Department, Faculty of Medicine, Benha University, Benha, 13511, Egypt
| | - Azza S Elhamshary
- Department of Parasitology, Benha Faculty of Medicine, Benha University, Benha, 13511, Egypt
| | - Ibrahim R Bayoumi
- Parasitology Department, Theodor Bilharz Research Institute, Giza, Egypt
| | - Rabab E Omar
- Department of Parasitology, Benha Faculty of Medicine, Benha University, Benha, 13511, Egypt
| | - Dina A Mohammed
- Department of Parasitology, Benha Faculty of Medicine, Benha University, Benha, 13511, Egypt
| | - Shin-Ichi Miyoshi
- Department of Sanitary Microbiology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, 700-8530, Japan
| | - Gehan A Rashed
- Department of Parasitology, Benha Faculty of Medicine, Benha University, Benha, 13511, Egypt
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Hegazy S, Farid A, Rabae I, El-Amir A. Novel IMB-ELISA Assay for Rapid Diagnosis of Human Toxoplasmosis Using SAG1 Antigen. Jpn J Infect Dis 2015; 68:474-80. [PMID: 25866114 DOI: 10.7883/yoken.jjid.2014.444] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
| | - Alyaa Farid
- Zoology Department, Science Faculty, Cairo University
| | | | - Azza El-Amir
- Zoology Department, Science Faculty, Cairo University
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A G, AK D, Chetana D. Application of Monoclonal Antibodies in Veterinary Parasitology. Vet World 2011. [DOI: 10.5455/vetworld.2011.183-188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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Chaithirayanon K, Wanichanon C, Vichasri-Grams S, Ardseungneon P, Grams R, Viyanant V, Upatham ES, Sobhon P. Production and characterization of a monoclonal antibody against 28.5 kDa tegument antigen of Fasciola gigantica. Acta Trop 2002; 84:1-8. [PMID: 12387905 DOI: 10.1016/s0001-706x(02)00138-9] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
A monoclonal antibody (MoAb) against the 28.5 kDa tegumental antigen of Fasciola gigantica was produced by the hybridoma technique using spleen cells from BALB/c mice immunized with the tegumental extract from adult F. gigantica. This MoAb was found to be of the isotype IgG(1), kappa-light chain, and shown by immunoblotting to specifically react with the 28.5 kDa antigen present in the tegument, excretion-secretion material of the adult, whole-body extracts of newly excysted juveniles, 5-week-old juvenile and adult parasites. It did not cross-react with antigens from other trematode parasites, including Schistosoma mansoni, Eurytrema pancreaticum and Paramphistomum spp. Immunolocalization of this antigen by indirect immunofluorescence indicated that it was present as a major component of the adult tegument, particularly in its outer rim, tegumental cells, and their processes. Furthermore, the epithelium linings of the oral sucker, buccal tube, pharynx, caecal bifurcation, both male and female genital canals, which were the continuation of the tegumental-type epithelium, were also positively stained with this MoAb. A similar pattern of immunolocalization, but with weaker staining intensity, was observed in newly excysted, 5- and 7-week-old juveniles. Thus this antigen is expressed in all developmental stages of the parasite, and it could be a strong candidate for immunodiagnosis and vaccine development.
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Affiliation(s)
- Kulathida Chaithirayanon
- Department of Anatomy, Faculty of Science, Mahidol University, Rama VI Road, Bangkok 10400, Thailand
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