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  • Title: LcrV capture enzyme-linked immunosorbent assay for detection of Yersinia pestis from human samples.
    Author: Gomes-Solecki MJ, Savitt AG, Rowehl R, Glass JD, Bliska JB, Dattwyler RJ.
    Journal: Clin Diagn Lab Immunol; 2005 Feb; 12(2):339-46. PubMed ID: 15699431.
    Abstract:
    In the United States, there is currently a major gap in the diagnostic capabilities with regard to plague. To address this, we developed an antigen capture assay using an essential virulence factor secreted by Yersinia spp., LcrV, as the target antigen. We generated anti-LcrV monoclonal antibodies (MAbs) and screened them for the ability to bind bacterially secreted native Yersinia pestis LcrV. Anti-LcrV MAb 19.31 was used as a capture antibody, and biotinylated MAb 40.1 was used for detection. The detection limit of this highly sensitive Yersinia LcrV capture enzyme-linked immunosorbent assay is 0.1 ng/ml. The assay detected LcrV from human sputum and blood samples treated with concentrations as low as 0.5 ng/ml of bacterially secreted native Y. pestis LcrV. This assay could be used as a tool to help confirm the diagnosis of plague in patients presenting with pneumonia.
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