CHARACTERISTICS OF ANTIGENIC COMPLEXES OF STAPHYLOCOCCUS AUREUS VACCINE STRAINS OBTAINED IN DIFFERENT CULTIVATION CONDITIONS


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Abstract

Aim. Assessment of characteristics of antigenic complexes of Staphylococcus aureus vaccine strains in different cultivation conditions. Materials and methods. S.aureus vaccine strains (No. 5, 9, 1986, 1991) were grown in liquid nutrient media – full value and semi-synthetic – as well as on solid medium. Reactor cultivation was performed in the fermenter ANKUM-2M. Complex of antigens were obtained by water extraction method applied to staphylococcal biomass inactivated with acetone and assessed by common methods on protein and carbohydrate content; specific activity was assessed by minimal inhibitory dose in passive hemagglutination inhibition assay. Study of acute toxicity was performed on outbred mice. Results. Using strain no. 1991, model of reactor cultivation in full value medium with separation of biomass by microfiltration was validated on the basis of biomass and semiproduct of antigenic complex (acetone powder) yield as well as productivity of biomass cumulation. Study of antigenic complexes obtained from biomass of 4 strains during reactor cultivation compared with complexes extracted from cultures grown on solid medium revealed increased protein and decreased carbohydrate content but similar specific activity. It was demonstrated that complex of antigens obtained from cultures grown either by reactor cultivation or on solid medium were non-toxic. Conclusion. New technology for manufacturing staphylococcal complex of antigens with reactor cultivation of vaccine strains in full value medium with subsequent purification of antigenic complex from the biomass by microfiltration was developed. Results of the study demonstrated the usefulness of the developed technology for both further studies on acellular staphylococcal vaccine and manufacture of staphylococcal component of «Immunovac» ® vaccine.

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ХАРАКТЕРИСТИКА КОМПЛЕКСОВ АНТИГЕНОВ ВАКЦИННЫХ ШТАММОВ STAPHYLOCOCCUS AUREUS, ПОЛУЧЕННЫХ В РАЗЛИЧНЫХ УСЛОВИЯХ КУЛЬТИВИРОВАНИЯ
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About the authors

O. M Kuzmenko

Mechnikov Research Institute of Vaccines and Sera, Moscow, Russia

S. A Zlygostev

Mechnikov Research Institute of Vaccines and Sera, Moscow, Russia

N. A Mikhaylova

Mechnikov Research Institute of Vaccines and Sera, Moscow, Russia

I. M Gruber

Mechnikov Research Institute of Vaccines and Sera, Moscow, Russia

N. K Akhmatova

Mechnikov Research Institute of Vaccines and Sera, Moscow, Russia

N. B Egorova

Mechnikov Research Institute of Vaccines and Sera, Moscow, Russia

E. A Kurbatova

Mechnikov Research Institute of Vaccines and Sera, Moscow, Russia

L. S Cherkasova

Mechnikov Research Institute of Vaccines and Sera, Moscow, Russia

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Copyright (c) 2010 Kuzmenko O.M., Zlygostev S.A., Mikhaylova N.A., Gruber I.M., Akhmatova N.K., Egorova N.B., Kurbatova E.A., Cherkasova L.S.

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