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Rapid Germinal Center and Antibody Responses in Non-human Primates after a Single Nanoparticle Vaccine Immunization

Author(s)
Boopathy, Archana V; Irvine, Darrell J
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Abstract
The first immunization in a protein prime-boost vaccination is likely to be critical for how the immune response unfolds. Using fine needle aspirates (FNAs) of draining lymph nodes (LNs), we tracked the kinetics of the primary immune response in rhesus monkeys immunized intramuscularly (IM) or subcutaneously (s.c.) with an eOD-GT8 60-mer nanoparticle immunogen to facilitate clinical trial design. Significant numbers of germinal center B (BGC) cells and antigen-specific CD4 T cells were detectable in the draining LN as early as 7 days post-immunization and peaked near day 21. Strikingly, s.c. immunization results in 10-fold larger antigen-specific BGC cell responses compared to IM immunization. Lymphatic drainage studies revealed that s.c. immunization resulted in faster and more consistent axillary LN drainage than IM immunization. These data indicate robust antigen-specific germinal center responses can occur rapidly to a single immunization with a nanoparticle immunogen and vaccine drainage substantially impacts immune responses in local LNs.
Date issued
2019-11
URI
https://hdl.handle.net/1721.1/126218
Department
Massachusetts Institute of Technology. Department of Materials Science and Engineering; Koch Institute for Integrative Cancer Research at MIT
Journal
Cell reports
Publisher
Elsevier BV
Citation
Havenar-Daughton, Colin et al. “Rapid Germinal Center and Antibody Responses in Non-human Primates after a Single Nanoparticle Vaccine Immunization.” Cell reports, vol. 29, 2019, pp. 1756-1766 © 2019 The Author(s)
Version: Final published version
ISSN
2211-1247

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