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- W2802746041 abstract "Ebola virus (EBOV) in humans causes a severe illness with high mortality rates. Several strategies have been developed in the past to treat EBOV infection, including the antibody cocktail ZMapp, which has been shown to be effective in nonhuman primate models of infection 1 and has been used under compassionate-treatment protocols in humans 2 . ZMapp is a mixture of three chimerized murine monoclonal antibodies (mAbs)3–6 that target EBOV-specific epitopes on the surface glycoprotein7,8. However, ZMapp mAbs do not neutralize other species from the genus Ebolavirus, such as Bundibugyo virus (BDBV), Reston virus (RESTV) or Sudan virus (SUDV). Here, we describe three naturally occurring human cross-neutralizing mAbs, from BDBV survivors, that target an antigenic site in the canonical heptad repeat 2 (HR2) region near the membrane-proximal external region (MPER) of the glycoprotein. The identification of a conserved neutralizing antigenic site in the glycoprotein suggests that these mAbs could be used to design universal antibody therapeutics against diverse ebolavirus species. Furthermore, we found that immunization with a peptide comprising the HR2–MPER antigenic site elicits neutralizing antibodies in rabbits. Structural features determined by conserved residues in the antigenic site described here could inform an epitope-based vaccine design against infection caused by diverse ebolavirus species. Cross-neutralizing antibodies from human survivors of the West Africa Ebola outbreak target a conserved membrane-proximal region in the virus glycoprotein HR2–MPER, which can be used as an immunogen to elicit neutralizing antibodies in rabbits." @default.
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- W2802746041 date "2018-05-07" @default.
- W2802746041 modified "2023-10-15" @default.
- W2802746041 title "Broadly neutralizing antibodies from human survivors target a conserved site in the Ebola virus glycoprotein HR2–MPER region" @default.
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- W2802746041 doi "https://doi.org/10.1038/s41564-018-0157-z" @default.
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