alexa Development and characterization of rabbit and mouse antibodies against ebolavirus envelope glycoproteins.
Infectious Diseases

Infectious Diseases

Journal of Infectious Diseases and Diagnosis

Author(s): Ou W, Delisle J, Konduru K, Bradfute S, Radoshitzky SR,

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Abstract Ebolaviruses are the etiologic agents of severe viral hemorrhagic fevers in primates, including humans, and could be misused for the development of biological weapons. The ability to rapidly detect and differentiate these viruses is therefore crucial. Antibodies that can detect reliably the ebolavirus surface envelope glycoprotein GP₁,₂ or a truncated variant that is secreted from infected cells (sGP) are required for advanced development of diagnostic assays such as sandwich ELISAs or Western blots (WB). We used a GP₁,₂ peptide conserved among Bundibugyo, Ebola, Reston, Sudan, and Taï Forest viruses and a mucin-like domain-deleted Sudan virus GP₁,₂ (SudanGPΔMuc) to immunize mice or rabbits, and developed a panel of antibodies that either cross-react or are virus-specific. These antibodies detected full-length GP₁,₂ and sGP in different assays such as ELISA, FACS, or WB. In addition, some of the antibodies were shown to have potential clinical relevance, as they detected ebolavirus-infected cells by immunofluorescence assay and gave a specific increase in signal by sandwich ELISA against sera from mouse-adapted Ebola virus-infected mice over uninfected mouse sera. Rabbit anti-SudanGPΔMuc polyclonal antibody neutralized gammaretroviral particles pseudotyped with Sudan virus GP₁,₂, but not particles pseudotyped with other ebolavirusGP₁,₂. Together, our results suggest that this panel of antibodies may prove useful for both in vitro analyses of ebolavirus GP₁,₂, as well as analysis of clinically relevant samples. Published by Elsevier B.V.
This article was published in J Virol Methods and referenced in Journal of Infectious Diseases and Diagnosis

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