npj Vaccines (Mar 2024)

Human immunoglobulin gene allelic variation impacts germline-targeting vaccine priming

  • Allan C. deCamp,
  • Martin M. Corcoran,
  • William J. Fulp,
  • Jordan R. Willis,
  • Christopher A. Cottrell,
  • Daniel L. V. Bader,
  • Oleksandr Kalyuzhniy,
  • David J. Leggat,
  • Kristen W. Cohen,
  • Ollivier Hyrien,
  • Sergey Menis,
  • Greg Finak,
  • Lamar Ballweber-Fleming,
  • Abhinaya Srikanth,
  • Jason R. Plyler,
  • Farhad Rahaman,
  • Angela Lombardo,
  • Vincent Philiponis,
  • Rachael E. Whaley,
  • Aaron Seese,
  • Joshua Brand,
  • Alexis M. Ruppel,
  • Wesley Hoyland,
  • Celia R. Mahoney,
  • Alberto Cagigi,
  • Alison Taylor,
  • David M. Brown,
  • David R. Ambrozak,
  • Troy Sincomb,
  • Tina-Marie Mullen,
  • Janine Maenza,
  • Orpheus Kolokythas,
  • Nadia Khati,
  • Jeffrey Bethony,
  • Mario Roederer,
  • David Diemert,
  • Richard A. Koup,
  • Dagna S. Laufer,
  • Juliana M. McElrath,
  • Adrian B. McDermott,
  • Gunilla B. Karlsson Hedestam,
  • William R. Schief

DOI
https://doi.org/10.1038/s41541-024-00811-5
Journal volume & issue
Vol. 9, no. 1
pp. 1 – 13

Abstract

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Abstract Vaccine priming immunogens that activate germline precursors for broadly neutralizing antibodies (bnAbs) have promise for development of precision vaccines against major human pathogens. In a clinical trial of the eOD-GT8 60mer germline-targeting immunogen, higher frequencies of vaccine-induced VRC01-class bnAb-precursor B cells were observed in the high dose compared to the low dose group. Through immunoglobulin heavy chain variable (IGHV) genotyping, statistical modeling, quantification of IGHV1-2 allele usage and B cell frequencies in the naive repertoire for each trial participant, and antibody affinity analyses, we found that the difference between dose groups in VRC01-class response frequency was best explained by IGHV1-2 genotype rather than dose and was most likely due to differences in IGHV1-2 B cell frequencies for different genotypes. The results demonstrate the need to define population-level immunoglobulin allelic variations when designing germline-targeting immunogens and evaluating them in clinical trials.