Expression of heterologous antigens inSalmonellaTyphimurium vaccine vectors using the in vivo-inducible, SPI-2 promoter,ssaG

DNA derived from regions upstream of theSalmonella entericaserovar TyphimuriumssaGgene were used to drive expression of different reporter genes in putativeSalmonellavaccine strains. Expression fromssaGwas shown to be significantly upregulated onceSalmonellahad entered murine or human macrophages, a...

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Veröffentlicht in:Vaccine 2004-09, Vol.22 (25-26), p.3243
Hauptverfasser: McKelvie, Nicola D, Stratford, Richard, Wu, Tao, Bellaby, Trevor, Aldred, Emma, Hughes, Nicky J, Chatfield, Steven N, Pickard, Derek, Hale, Christine, Dougan, Gordon, Khan, Shahid A
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container_end_page
container_issue 25-26
container_start_page 3243
container_title Vaccine
container_volume 22
creator McKelvie, Nicola D
Stratford, Richard
Wu, Tao
Bellaby, Trevor
Aldred, Emma
Hughes, Nicky J
Chatfield, Steven N
Pickard, Derek
Hale, Christine
Dougan, Gordon
Khan, Shahid A
description DNA derived from regions upstream of theSalmonella entericaserovar TyphimuriumssaGgene were used to drive expression of different reporter genes in putativeSalmonellavaccine strains. Expression fromssaGwas shown to be significantly upregulated onceSalmonellahad entered murine or human macrophages, and levels of expression were dependent on the length of thessaG5' sequence incorporated.S.Typhimurium derivatives harbouring theEscherichia coliheat labile toxin B subunit (LT-B) fused to various lengths of thessaGpromoter region were also constructed as single copy chromosomal integrations. Expression of LT-B by theseSalmonelladerivatives was detected at significant levels after intra-macrophage survival and mice immunised with these derivatives mounted marked anti-LT-B humoral antibody responses.
doi_str_mv 10.1016/j.vaccine.2004.05.014
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source Elsevier ScienceDirect Journals Complete
subjects Cloning
Deoxyribonucleic acid
Derivatives
DNA
E coli
Genes
Immunization
Plasmids
Proteins
Salmonella
Toxins
Vaccines
title Expression of heterologous antigens inSalmonellaTyphimurium vaccine vectors using the in vivo-inducible, SPI-2 promoter,ssaG
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