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Title: The human naive B cell repertoire contains distinct subclasses for a germline-targeting HIV-1 vaccine immunogen

Journal Article · · Science Translational Medicine
ORCiD logo [1];  [2]; ORCiD logo [3]; ORCiD logo [1]; ORCiD logo [2];  [4]; ORCiD logo [2];  [1]; ORCiD logo [5];  [2]; ORCiD logo [2];  [2]; ORCiD logo [2];  [2];  [2]; ORCiD logo [1]; ORCiD logo [4]; ORCiD logo [2]; ORCiD logo [2]; ORCiD logo [5] more »; ORCiD logo [2]; ORCiD logo [6]; ORCiD logo [7] « less
  1. La Jolla Inst. for Allergy and Immunology, CA (United States); The Scripps Research Inst., La Jolla, CA (United States)
  2. The Scripps Research Inst., La Jolla, CA (United States)
  3. The Scripps Research Inst., La Jolla, CA (United States); The Wistar Inst., Philadelphia, PA (United States)
  4. La Jolla Inst. for Allergy and Immunology, CA (United States)
  5. Emory Univ., Atlanta, GA (United States)
  6. The Scripps Research Inst., La Jolla, CA (United States); Ragon Inst., Cambridge, MA (United States)
  7. La Jolla Inst. for Allergy and Immunology, CA (United States); The Scripps Research Inst., La Jolla, CA (United States); Univ. of San Diego, La Jolla, CA (United States)

Traditional vaccine development to prevent some of the worst current pandemic diseases has been unsuccessful so far. Germline-targeting immunogens have potential to prime protective antibodies (Abs) via more targeted immune responses. Success of germline-targeting vaccines in humans will depend on the composition of the human naive B cell repertoire, including the frequencies and affinities of epitope-specific B cells. However, the human naive B cell repertoire remains largely undefined. Assessment of antigen-specific human naive B cells among hundreds of millions of B cells from multiple donors may be used as pre–phase 1 ex vivo human testing to potentially forecast B cell and Ab responses to new vaccine designs. VRC01 is an HIV broadly neutralizing Ab (bnAb) against the envelope CD4-binding site (CD4bs). In this work, we characterized naive human B cells recognizing eOD-GT8, a germline-targeting HIV-1 vaccine candidate immunogen designed to prime VRC01-class Abs. Several distinct subclasses of VRC01-class naive B cells were identified, sharing sequence characteristics with inferred precursors of known bnAbs VRC01, VRC23, PCIN63, and N6. Multiple naive B cell clones exactly matched mature VRC01-class bnAb L-CDR3 sequences. Non–VRC01-class B cells were also characterized, revealing recurrent public light chain sequences. Unexpectedly, we also identified naive B cells related to the IOMA-class CD4bs bnAb. These different subclasses within the human repertoire had strong initial affinities (KD) to the immunogen, up to 13 nM, and represent encouraging indications that multiple independent pathways may exist for vaccine-elicited VRC01-class bnAb development in most individuals. The frequencies of these distinct eOD-GT8 B cell specificities give insights into antigen-specific compositional features of the human naive B cell repertoire and provide actionable information for vaccine design and advancement.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
Sponsoring Organization:
USDOE Office of Science (SC); National Institute of Allergy and Infectious Diseases (NIAID); International AIDS Vaccine Initiative (IAVI) Neutralizing Antibody Consortium (NAC) and Center; Collaboration for AIDS Vaccine Discovery; Bill & Melinda Gates Foundation; Ministry of Foreign Affairs of Denmark; Irish Aid; Ministry of Finance of Japan; The World Bank; Ministry of Foreign Affairs of the Netherlands; Norwegian Agency for Development Cooperation (NORAD); UK Department for International Development (DFID); US Agency for International Development (USAID)
Grant/Contract Number:
UM1 AI100663; NIAID R01 Al113867; NIAID U24 Al120134
OSTI ID:
1499777
Journal Information:
Science Translational Medicine, Vol. 10, Issue 448; ISSN 1946-6234
Publisher:
AAASCopyright Statement
Country of Publication:
United States
Language:
ENGLISH
Citation Metrics:
Cited by: 80 works
Citation information provided by
Web of Science

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Cited By (11)

Potent antibody lineage against malaria transmission elicited by human vaccination with Pfs25 journal September 2019
Anti-idiotypic antibodies elicit anti-HIV-1–specific B cell responses journal July 2019
Recent progress in broadly neutralizing antibodies to HIV journal October 2018
Antibody responses to viral infections: a structural perspective across three different enveloped viruses journal March 2019
Nanoparticle Vaccines for Inducing HIV-1 Neutralizing Antibodies journal July 2019
A generalized HIV vaccine design strategy for priming of broadly neutralizing antibody responses journal October 2019
Exploiting B Cell Receptor Analyses to Inform on HIV-1 Vaccination Strategies journal January 2020
Overcoming Steric Restrictions of VRC01 HIV-1 Neutralizing Antibodies through Immunization journal December 2019
Rapid and Focused Maturation of a VRC01-Class HIV Broadly Neutralizing Antibody Lineage Involves Both Binding and Accommodation of the N276-Glycan journal July 2019
Antimalarial antibody repertoire defined by plasma IG proteomics and single B cell IG sequencing journal November 2020
Techniques to Study Antigen-Specific B Cell Responses journal July 2019

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