Journal
VACCINE
Volume 18, Issue 21, Pages 2266-2274Publisher
ELSEVIER SCI LTD
DOI: 10.1016/S0264-410X(99)00571-X
Keywords
Pseudomonas aeruginosa; bacterial vaccine; OM protein F; tobacco mosaic virus; chimeric virus
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Funding
- NIAID NIH HHS [AI44424, AI27161] Funding Source: Medline
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A chimeric tobacco mosaic virus (TMV) was constructed by inserting sequences representing peptide 9-14mer (TDAYNQKLSERRAN) of enter membrane (OM) protein F of Pseudomonas aeruginosa between amino acids Ser154 and Gly155 of the TMV coat protein (CP). This is the first example of TMV being used to construct a chimera containing a bacterial epitope. Mice immunized with TMV-9-14 produced anti-peptide-9-14mer-specific antibodies that reacted in whole-cell ELISA with all seven Fisher-Devlin (FD) immunotype strains of P. aeruginosa, reacted specifically by Western blotting with OM protein F extracted from all seven FD immunotypes, and were opsonic in opsonophagocytic assays. The chimeric TMV-9-14 vaccine afforded immunoprotection against challenge with wild-type P. aeruginosa in a mouse model of chronic pulmonary infection. TMV-9-14 is an excellent candidate for further development as a vaccine for possible use in humans to protect against P. aeruginosa infections. (C) 2000 Elsevier Science Ltd. All rights reserved.
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