Characterisation of the immune response to the UK human anthrax vaccine

Baillie, Les ORCID: https://orcid.org/0000-0002-8186-223X, Hebdon, R., Flick-Smith, H. and Williamson, D. 2003. Characterisation of the immune response to the UK human anthrax vaccine. FEMS Immunology and Medical Microbiology 36 (1-2) , pp. 83-86. 10.1016/S0928-8244(03)00085-3

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Abstract

The UK human anthrax vaccine consists of the alum-precipitated culture supernatant of Bacillus anthracis Sterne. In addition to protective antigen (PA), the key immunogen, the vaccine also contains a number of other bacteria- and media-derived proteins. These proteins may contribute to the transient side effects experienced by some individuals and could influence the development of the PA-specific immune response. Bacterial cell-wall components have been shown to be potent immunomodulators. B. anthracis expresses two S-layer proteins, EA1 and Sap, which have been demonstrated to be immunogenic in animal studies. These are also immunogenic in man so that convalescent and post-immunisation sera contain specific antibodies to Ea1, and to a lesser extent, to Sap. To determine if these proteins are capable of modifying the protective immune response to PA, A/J mice were immunised with equivalent amounts of recombinant PA and S-layer proteins in the presence of alhydrogel. IgG isotype profiles were determined and the animals were subsequently challenged with spores of B. anthracis STI. The results suggest that there was no significant shift in IgG isotype profile and that the presence of the S-layer proteins did not adversely affect the protective immune response induced by PA.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Pharmacy
Subjects:	R Medicine > RM Therapeutics. Pharmacology
Uncontrolled Keywords:	Anthrax vaccine; S-layer protein; Immune responses
Publisher:	Wiley-Blackwell
ISSN:	0928-8244
Last Modified:	18 Oct 2022 14:26
URI:	https://orca.cardiff.ac.uk/id/eprint/17512

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