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Vaccine. 2005 May 20;23(27):3609-17.

Comparative immunogenicity of the hepatitis B virus core 149 antigen displayed on the inner and outer membrane of bacterial ghosts.

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  • 1Institute of Microbiology and Genetics, Section Microbiology and Biotechnology, University of Vienna, UZA II, 2B522, Althanstrasse 14, A-1090 Wien, Austria. Wolfgang.Jechlinger@vu-wien.ac.at


Two membrane compartments of Escherichia coli ghosts, representing empty bacterial cell envelopes, were investigated as carriers of foreign antigens. By subcutaneous immunisation of mice the immunogenicity of bacterial ghosts carrying the Hepatitis B virus core 149 protein (HBcAg-149) as model antigen anchored either in the inner or the outer membrane of E. coli was compared. Both systems induced significant immune responses against the foreign target antigen, the HBcAg-149, in mice. Results indicate that bacterial ghosts provide an excellent carrier system for antigen delivery.

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