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TitleChimeric Glycoprotein Nanoparticles Elicit Robust Neutralizing Antibodies Against Epstein-Barr Virus.
Journal, issue, pagesAdv Mater, Page e07012, Year 2025
Publish dateOct 4, 2025
AuthorsCong Sun / Chu Xie / Xin-Yan Fang / Dong-Chun Hong / Haoyu Zhang / Pei-Huang Wu / Yi-Na Liu / Guo-Long Bu / De-Hai Cao / Min-Yi Si-Tu / Yong-Jian Peng / Jing Wang / Guo-Kai Feng / Qian Zhong / Zheng Liu / Mu-Sheng Zeng /
PubMed AbstractEpstein‒Barr virus (EBV) is a ubiquitous gammaherpesvirus linked to a broad spectrum of malignancies and autoimmune diseases with no approved therapeutic drugs or vaccines. EBV infection relies on ...Epstein‒Barr virus (EBV) is a ubiquitous gammaherpesvirus linked to a broad spectrum of malignancies and autoimmune diseases with no approved therapeutic drugs or vaccines. EBV infection relies on the viral glycoproteins gB and gHgL, which, together, function as the fusion apparatus, mediating viral recognition and membrane fusion in both epithelial and B cells. Despite discovering potent neutralizing antibodies targeting gB and gHgL, the heterogeneous antigen structures and distribution of multiple glycoproteins in the virion hinder rational vaccine design targeting this apparatus complex. In this study, Chimeric nanoparticles (Chimeric-NPs) are designed that co-display EBV fusion apparatus and induce significantly more neutralizing antibodies in mice and nonhuman primates than the cocktail counterparts. It is further demonstrated that the Chimeric-NPs elicited neutralizing antibodies predominantly targeting gB, closely mimicking the antibody induction pattern by the whole EBV virion. Additionally, single-BCR sequencing is used to analyze the B cell response to Chimeric-NP, and a novel gB neutralizing antibody Fab5 targeting a new vulnerable site EBV gB is identified. These findings provide novel candidates and vaccine design strategies for EBV and reveal the underlying mechanisms of antibody induction and immune response regulation by chimera vaccines, with potential implications for all multi-antigen-harbored pathogens.
External linksAdv Mater / PubMed:41045177
MethodsEM (single particle)
Resolution3.4 Å
Structure data

39670

8yy6

EMDB-39670, PDB-8yy6:
Structure of a murine monoclonal antibody Fab5 targeting Epstein-Barr virus gB
Method: EM (single particle) / Resolution: 3.4 Å

Chemicals

ChemComp-NAG:
2-acetamido-2-deoxy-beta-D-glucopyranose

Source
  • Human herpesvirus 4 (Epstein-Barr virus)
  • homo sapiens (human)
  • human gammaherpesvirus 4 (Epstein-Barr virus)
KeywordsVIRAL PROTEIN/IMMUNE SYSTEM / EBV / Antibody / VIRAL PROTEIN-IMMUNE SYSTEM complex

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