Discovery of Nanosota-EB1 and -EB2 as Novel Nanobody Inhibitors Against Ebola Virus Infection.

The Ebola filovirus (EBOV) poses a serious threat to global health and national security. Nanobodies, a type of single-domain antibody, have demonstrated promising therapeutic potential. We identified two anti-EBOV nanobodies, Nanosota-EB1 and Nanosota-EB2, which specifically target the EBOV glycopr...

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Main Authors: Fan Bu, Gang Ye, Kimberly Morsheimer, Alise Mendoza, Hailey Turner-Hubbard, Morgan Herbst, Benjamin Spiller, Brian E Wadzinski, Brett Eaton, Manu Anantpadma, Ge Yang, Bin Liu, Robert Davey, Fang Li
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2024-12-01
Series:PLoS Pathogens
Online Access:https://doi.org/10.1371/journal.ppat.1012817
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author Fan Bu
Gang Ye
Kimberly Morsheimer
Alise Mendoza
Hailey Turner-Hubbard
Morgan Herbst
Benjamin Spiller
Brian E Wadzinski
Brett Eaton
Manu Anantpadma
Ge Yang
Bin Liu
Robert Davey
Fang Li
author_facet Fan Bu
Gang Ye
Kimberly Morsheimer
Alise Mendoza
Hailey Turner-Hubbard
Morgan Herbst
Benjamin Spiller
Brian E Wadzinski
Brett Eaton
Manu Anantpadma
Ge Yang
Bin Liu
Robert Davey
Fang Li
author_sort Fan Bu
collection DOAJ
description The Ebola filovirus (EBOV) poses a serious threat to global health and national security. Nanobodies, a type of single-domain antibody, have demonstrated promising therapeutic potential. We identified two anti-EBOV nanobodies, Nanosota-EB1 and Nanosota-EB2, which specifically target the EBOV glycoprotein (GP). Cryo-EM and biochemical data revealed that Nanosota-EB1 binds to the glycan cap of GP1, preventing its protease cleavage, while Nanosota-EB2 binds to critical membrane-fusion elements in GP2, stabilizing it in the pre-fusion state. Nanosota-EB2 is a potent neutralizer of EBOV infection in vitro and offers excellent protection in a mouse model of EBOV challenge, while Nanosota-EB1 provides moderate neutralization and protection. Nanosota-EB1 and Nanosota-EB2 are the first nanobodies shown to inhibit authentic EBOV. Combined with our newly developed structure-guided in vitro evolution approach, they lay the foundation for nanobody-based therapies against EBOV and other viruses within the ebolavirus genus.
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spelling doaj-art-c1b4258e4a3e44debd43229941a36d962025-01-17T05:31:04ZengPublic Library of Science (PLoS)PLoS Pathogens1553-73661553-73742024-12-012012e101281710.1371/journal.ppat.1012817Discovery of Nanosota-EB1 and -EB2 as Novel Nanobody Inhibitors Against Ebola Virus Infection.Fan BuGang YeKimberly MorsheimerAlise MendozaHailey Turner-HubbardMorgan HerbstBenjamin SpillerBrian E WadzinskiBrett EatonManu AnantpadmaGe YangBin LiuRobert DaveyFang LiThe Ebola filovirus (EBOV) poses a serious threat to global health and national security. Nanobodies, a type of single-domain antibody, have demonstrated promising therapeutic potential. We identified two anti-EBOV nanobodies, Nanosota-EB1 and Nanosota-EB2, which specifically target the EBOV glycoprotein (GP). Cryo-EM and biochemical data revealed that Nanosota-EB1 binds to the glycan cap of GP1, preventing its protease cleavage, while Nanosota-EB2 binds to critical membrane-fusion elements in GP2, stabilizing it in the pre-fusion state. Nanosota-EB2 is a potent neutralizer of EBOV infection in vitro and offers excellent protection in a mouse model of EBOV challenge, while Nanosota-EB1 provides moderate neutralization and protection. Nanosota-EB1 and Nanosota-EB2 are the first nanobodies shown to inhibit authentic EBOV. Combined with our newly developed structure-guided in vitro evolution approach, they lay the foundation for nanobody-based therapies against EBOV and other viruses within the ebolavirus genus.https://doi.org/10.1371/journal.ppat.1012817
spellingShingle Fan Bu
Gang Ye
Kimberly Morsheimer
Alise Mendoza
Hailey Turner-Hubbard
Morgan Herbst
Benjamin Spiller
Brian E Wadzinski
Brett Eaton
Manu Anantpadma
Ge Yang
Bin Liu
Robert Davey
Fang Li
Discovery of Nanosota-EB1 and -EB2 as Novel Nanobody Inhibitors Against Ebola Virus Infection.
PLoS Pathogens
title Discovery of Nanosota-EB1 and -EB2 as Novel Nanobody Inhibitors Against Ebola Virus Infection.
title_full Discovery of Nanosota-EB1 and -EB2 as Novel Nanobody Inhibitors Against Ebola Virus Infection.
title_fullStr Discovery of Nanosota-EB1 and -EB2 as Novel Nanobody Inhibitors Against Ebola Virus Infection.
title_full_unstemmed Discovery of Nanosota-EB1 and -EB2 as Novel Nanobody Inhibitors Against Ebola Virus Infection.
title_short Discovery of Nanosota-EB1 and -EB2 as Novel Nanobody Inhibitors Against Ebola Virus Infection.
title_sort discovery of nanosota eb1 and eb2 as novel nanobody inhibitors against ebola virus infection
url https://doi.org/10.1371/journal.ppat.1012817
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