ArticlePLoS pathogens2025
Human monoclonal antibodies to HPV16 show evidence for common developmental pathways and public epitopes.
Article in PLoS pathogens, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- A forward genetics platform for papillomavirus research.Science advances · 2026Article
- Cross-Neutralizing and Broadly Neutralizing Human Antibodies Against Nonenveloped Viruses.European journal of immunology · 2026Review
- Structural basis for distinct protective mechanisms of IGHV3-23 antibodies targeting influenza hemagglutinin stem.Nature communications · 2026Article
Corrections and comments
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Authors and funding
13 authors.
Funding
Abstract
Antibodies to human papillomavirus (HPV) primarily recognize surface exposed residues on five loops of the major capsid protein (L1) that vary significantly among HPV types. We determined which loops were required for neutralization for 68 HPV16 specific human monoclonal antibodies (mAbs) cloned from participants who received an HPV vaccine and describe molecular features of those antibodies. Chimeric HPV16 pseudovirus (cpsV), each having one surface loop bearing multiple amino acid substitutions, were used to determine neutralization specificity. The HPV16-FG-loop was the loop most frequently required for neutralization (42 of 68, 61.8%), however, all surface loops were required for neutralization by multiple mAbs: HI (13, 19.1%), DE (15, 22.1%), EF (five, 7.4%), BC (four, 5.9%). Antibodies that required multiple loops were common (17, 25.0%). Three mAbs (4.4%) required sequences on the c-terminus of L1 and for another three mAbs the neutralization specificity could not be determined. Two types of mAbs appeared to be overrepresented: ten mAbs used immunoglobin heavy chain variable region 2-70 (IGHV2-70) with immunoglobin light chain variable region 1-40 (IGLV1-40), having characteristic mutations in complementarity determining region two (CDRL2) of the light chain. Cryogenic electron microscopy (Cryo-EM) revealed that two of these antibodies bound five Fabs per capsomer interacting with all five L1-surface loops. The other type of mAbs that appeared to be overrepresented were nine mAbs using IGHV4-34, six of which also used DH3-16*02 with conserved CDRH3 sequences. Cryo-EM for one of these mAbs, that required the FG-loop for neutralization, was shown to bind one Fab per capsomer at the apex, interacting with the DE- and FG-loops, with sequences of the Fab CDRH3 inserted between the DE- and FG-loops from two L1 proteins. These two types of mAbs were found in the four participants suggesting that these antibodies shared developmental pathways and bound to similar immunodominant epitopes on the virus.
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