Abstract
In the present study, a stimulating effect of a new synthetic organoselenium compound 2,6-dipyridinium-9-selenabicyclo[3.3.1]nonandibromide (974zh) on the immunogenic activity of the vaccine strain Yersinia pestis EV NIIEG was revealed. After infection with the virulent plague strain, the survival rate of laboratory mice immunized with the vaccine strain grown on Hottinger's agar in the presence of 974zh (300 μg/ml) increased in comparison with control animals immunized with the Y. pestis EV NIIEG culture grown on agar without the studied compound. Plasmid screening of cultures grown on medium with and without 974zh showed that plasmid DNA of Y. pestis EV culture grown in the presence of 974zh had broader bands in the control grown without 974zh. This phenomenon can indicate activation of replication of plasmid DNA of Y. pestis EV under the influence of the experimental compound.
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