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1.
Klin Lab Diagn ; (11): 53-6, 2010 Nov.
Artículo en Ruso | MEDLINE | ID: mdl-21313756

RESUMEN

The agglutinating properties of MCA-O1 of the IgG class and MCA-O139 of the IgM class towards epitopes of O-antigen of Vibrio cholerae O1 and accordingly Vibrio cholerae O139 were studied. The ascitic and cultural fluids by hybridomas F8G12 and D11 deposited in the specialized Collection of Cell Cultures of Vertebrates (Saint Petersburg) under RKKK (II) 386 D and RKKK (II) 674 D were the sources of monoclonal immunoglobulins. The advantage of diagnostic monoclonal immunoglobulins is that they are distinguished for strict specificity and their use in practical health care contributes to the higher specificity of a laboratory test for cholera and to its shorter performance.


Asunto(s)
Anticuerpos Monoclonales , Antígenos Bacterianos/inmunología , Vibrio cholerae/clasificación , Pruebas de Aglutinación , Epítopos , Sensibilidad y Especificidad , Vibrio cholerae/inmunología
2.
Artículo en Ruso | MEDLINE | ID: mdl-21381382

RESUMEN

AIM: Comparative study of sensitivity and specificity of immunochromatographic (IC) assay kit and dot-immunoanalysis for assessment of feasibility of their use for laboratory diagnostics of cholera. MATERIALS AND METHODS: Experimental lots of IC assay kit and dot-immunoassay (DIA) for detection of Vibrio cholerae serogroup 01 serovars Ogava and Inaba were constructed on the basis of species-specific monoclonal antibodies (MCA) conjugated with colloid gold (IC) and peroxidase (DIA). Hybridoma-producer of MCAwas obtained and stored in liquid nitrogen in Rostov-on-Don Research Institute for Plague Control. It was deposited in specialized collection of cell cultures of vertebrates in Institute of Cytology (Saint Petersburg). RESULTS: Strong specificity of IC assay kit and DIA relative to cholera vibrios 01 and absence of crossreactivity with closely related and heterologous microorganisms were shown. Minimal quantity of vibrios, which could be detected using IC assay kit and DIA, was 107 and 105-106 microbial cells respectively. CONCLUSION: Performance of IC assay takes 5-15 min, DIA--1.5 hour, they allow to visually assess the reaction, do not require instrumentation and in perspective both methods could be used on defined stages of scheme for laboratory analysis of cholera.


Asunto(s)
Cólera/diagnóstico , Cromatografía/métodos , Immunoblotting/métodos , Vibrio cholerae O1/aislamiento & purificación , Anticuerpos Antibacterianos/inmunología , Anticuerpos Monoclonales/inmunología , Especificidad de Anticuerpos , Oro Coloide , Humanos , Peroxidasa , Sensibilidad y Especificidad , Vibrio cholerae O1/inmunología
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