Aim: Extraction of complex of Burkholderia pseudomallei antigens 6+d (Ag6+d) and study of its immunogenic and protective characteristics.
Materials And Methods: Studied antigens were obtained from acrtone-dried cells of B. pseudomallei 57576. Experiments were performed on white mouse model. Microbiological, immunochemical as well as immunological methods were used in the study.
Results: It was shown that antigenic complex 6+d has a glycoprotein nature and corresponds to high-polymeric catode-moving antigen 6 with molecular mass 500 kDa and anode-moving antigen d with molecular mass 40 - 55 kDa. Immunogenic and protective characteristics of surface antigenic complex 6+d was studied. It was noted that Ag6+d caused reliable stimulating effect on cellular arm of immune system of white mice appeared in activation of delayed-type hypersensitivity reactions, enhanced phagocytic activity of polymorphonuclear macrophages as well as increased expression of Fc-receptors on macrophages and neutrophils.
Conclusion: Observed stimulation of cellular immunity by surface antigens was confirmed during study of their protective characteristics on the model of experimental meloidosis in white mice.
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