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M9550021.TXT
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1995-03-04
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Document 0021
DOCN M9550021
TI Production of Vibrio cholerae ghosts (VCG) by expression of a cloned
phage lysis gene: potential for vaccine development.
DT 9505
AU Eko FO; Szostak MP; Wanner G; Lubitz W; Institute of Microbiology and
Genetics, University of Vienna,; Austria.
SO Vaccine. 1994 Oct;12(13):1231-7. Unique Identifier : AIDSLINE
MED/95141687
AB The protein E-specific lysis mechanism of the Escherichia coli-specific
bacteriophage PhiX174 was employed to produce Vibrio cholerae ghosts
(VCG). VCG consist of both rounded and collapsed cells that have lost
their cytoplasmic contents through an E-specific hole in the cell
envelope. These ghosts are proposed as non-living material for
immunization against cholera. A specific membrane anchor sequence was
used to insert the human immunodeficiency virus type 1 (HIV-1) reverse
transcriptase (RT) fusion protein into the cell envelope of V. cholerae.
The identity of the expression products was confirmed by Western blot
analysis employing an RT-specific monoclonal antibody. HIV-1 RT was
chosen as a model for the purpose of evaluating heterologous gene
expression in V. cholerae and the carrier potential of VCG.
Intraperitoneal immunization of mice was used to evaluate the
immunogenic potential of VCG. Preliminary results showed significant
seroconversions to intact whole-cell vibrio antigens in mice immunized
with VCG or a heat-killed whole-cell vibrio preparation.
DE Animal Antibodies, Bacterial/BIOSYNTHESIS Antibodies, Monoclonal
Bacteriophage phi X 174/GENETICS Cell Membrane/IMMUNOLOGY
Cholera/PREVENTION & CONTROL Cholera Vaccine/*ISOLATION & PURIF
Cloning, Molecular Genes, Viral Human HIV-1/ENZYMOLOGY/GENETICS
Immunization Mice Microscopy, Electron Plasmids Recombinant Fusion
Proteins/GENETICS Reverse Transcriptase/GENETICS/IMMUNOLOGY Support,
Non-U.S. Gov't Transformation, Genetic Vaccines, Synthetic/ISOLATION &
PURIF Vibrio cholerae/*GENETICS/*IMMUNOLOGY/ULTRASTRUCTURE Viral
Proteins/GENETICS JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).