Разработка иммуноферментных тест-систем и иммунохроматографических наборов реагентов, предназначенных для выявления стафилококковых энтеротоксинов типов А и В

Abstract

Objective of the study was the development of experimental ELISA tests and lateral flow immunoassays for detection of staphylococcal enterotoxins, A and B types. Materials and methods . Hybridomas, producing monoclonal antibodies against staphylococcal enterotoxins A and B from State Collection of the Affiliated Branch of the “48th Central Research Institute” of the Ministry of Defense of the Russian Federation, BALB/c mice and staphylococcal enterotoxins A and B were used in the research. Hybridoma cells were incubated in culture flasks and in the peritoneal cavity of BALB/c mice. Monoclonal antibodies were isolated from ascitic fluids through precipitation with saturated ammonium sulfate subsequently purified using ion-exchange chromatography. Obtained preparations of monoclonal antibodies were used for the construction of ELISA tests and immune-chromatographic reagent panels for the detection of staphylococcal enterotoxins A and B. Specific components of ELISA tests were lyophilized in protective media. Results and discussion . ELISA tests and lateral flow immunoassays which allow for detecting staphylococcal enterotoxins A and B at concentrations of 0.5 ng/ml and higher, including in food samples, have been constructed.