Recombinant V antigen protects mice against pneumonic and bubonic plague caused by F1-capsule-positive and -negative strains of Yersinia pestis.
The purified recombinant V antigen from Yersinia pestis, expressed in Escherichia coli and adsorbed to aluminum hydroxide, an adjuvant approved for human use, was used to immunize outbred Hsd:ND4 mice subcutaneously. Immunization protected mice from lethal bubonic and pneumonic plague caused by CO92, a wild-type F1+ strain, or by the isogenic F1- strain C12. This work demonstrates that a subunit plague vaccine formulated for human use provides significant protection against bubonic plague caused by an F1- strain (C12) or against substantial aerosol challenges from either F1+ (CO92) or F1-(C12) Y. pestis.
United States Army Medical Research Institute of Infectious Diseases, Fort Detrick, Frederick, Maryland 21702-5011, USA. LTC_george_anderson@ftdetrck-ccmail.army.mil.
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Anderson
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Leary
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Williamson
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Titball
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Friedlander
D000818:Animals; D000907:Antibodies, Bacterial / Q000096:biosynthesis / Q000097:blood; D000942:Antigens, Bacterial / Q000276:immunology*; D016667:Bacterial Capsules / Q000032:analysis; D004797:Enzyme-Linked Immunosorbent Assay; D005260:Female; D007074:Immunoglobulin G / Q000096:biosynthesis / Q000097:blood; D051379:Mice; D010930:Plague / Q000382:microbiology / Q000517:prevention & control*; D010931:Plague Vaccine / Q000276:immunology; D052899:Pore Forming Cytotoxic Proteins; D014611:Vaccination; D014614:Vaccines, Synthetic / Q000276:immunology; D015010:Yersinia pestis / Q000276:immunology*
D000907:Antibodies, Bacterial; D000942:Antigens, Bacterial; D007074:Immunoglobulin G; C043908:LcrV protein, Yersinia; D010931:Plague Vaccine; D052899:Pore Forming Cytotoxic Proteins; D014614:Vaccines, Synthetic