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TitleA monoclonal antibody targeting conserved regions of pre-fusion protein cross-neutralizes Nipah and Hendra virus variants.
Journal, issue, pagesAntiviral Res, Vol. 240, Page 106215, Year 2025
Publish dateJun 18, 2025
AuthorsTao Li / Hua Xu / Mengyi Zhang / Jianhui Nie / Binfan Liao / Jingshu Xie / Yinan Jiang / Yawen Liu / Pingju Ge / Chunhui Zhao / Ziqi Sun / Yunbo Bai / Maoling Tang / Xiaodong Su / Youchun Wang / Weijin Huang /
PubMed AbstractNipah virus (NiV) and Hendra virus (HeV) have an extremely high case fatality, leading to hundreds of deaths in several countries around the globe. Belonging to the same genus Henipavirus (HNV), the ...Nipah virus (NiV) and Hendra virus (HeV) have an extremely high case fatality, leading to hundreds of deaths in several countries around the globe. Belonging to the same genus Henipavirus (HNV), the two species have a high degree of sequence similarity, resulting in cross-neutralizing immunity under favorable conditions. Here, we obtained ten anti-NiV-F monoclonal antibodies using hybridoma technology, and verified that these antibodies had potent neutralizing activities against epidemic NiV strains from different regions using a pseudovirus assay, and the neutralizing concentration reached the nanogram per milliliter level. Moreover, two of the antibodies, NiF03-3C9 and NiF03-2F6, were found to have cross-neutralizing activity against HeV, which was even stronger than that against NiV. Epitope competition analysis revealed two classes of epitopes for these antibodies. Cryo-electron microscopy showed that NiF03-3C9 binds to lateral residues of the prefusion F protein trimer, highly conserved in both Nipah and Hendra. The protective potency of the antibodies was also validated using in vivo pseudovirus infection models of Nipah and Hendra viruses. The mAbs developed in this study and their conserved cross-neutralizing epitopes elucidated by structural analysis may contribute to the control of highly pathogenic HNV outbreaks.
External linksAntiviral Res / PubMed:40541691
MethodsEM (single particle)
Resolution2.45 Å
Structure data

63235

9lng

EMDB-63235, PDB-9lng:
An antibody target the fusion protein of Nipah virus
Method: EM (single particle) / Resolution: 2.45 Å

Source
  • henipavirus nipahense
  • mus musculus (house mouse)
KeywordsVIRAL PROTEIN/IMMUNE SYSTEM / Nipah virus / antibody / complex / VIRAL PROTEIN-IMMUNE SYSTEM complex

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