1. Primary exposure to SARS-CoV-2 variants elicits convergent epitope specificities, immunoglobulin V gene usage and public B cell clones
- Author
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Noemia S. Lima, Maryam Musayev, Timothy S. Johnston, Danielle A. Wagner, Amy R. Henry, Lingshu Wang, Eun Sung Yang, Yi Zhang, Kevina Birungi, Walker P. Black, Sijy O’Dell, Stephen D. Schmidt, Damee Moon, Cynthia G. Lorang, Bingchun Zhao, Man Chen, Kristin L. Boswell, Jesmine Roberts-Torres, Rachel L. Davis, Lowrey Peyton, Sandeep R. Narpala, Sarah O’Connell, Jennifer Wang, Alexander Schrager, Chloe Adrienna Talana, Kwanyee Leung, Wei Shi, Rawan Khashab, Asaf Biber, Tal Zilberman, Joshua Rhein, Sara Vetter, Afeefa Ahmed, Laura Novik, Alicia Widge, Ingelise Gordon, Mercy Guech, I-Ting Teng, Emily Phung, Tracy J. Ruckwardt, Amarendra Pegu, John Misasi, Nicole A. Doria-Rose, Martin Gaudinski, Richard A. Koup, Peter D. Kwong, Adrian B. McDermott, Sharon Amit, Timothy W. Schacker, Itzchak Levy, John R. Mascola, Nancy J. Sullivan, Chaim A. Schramm, and Daniel C. Douek
- Abstract
An important consequence of infection with a SARS-CoV-2 variant is protective humoral immunity against other variants. The basis for such cross-protection at the molecular level is incompletely understood. Here we characterized the repertoire and epitope specificity of antibodies elicited by Beta, Gamma and ancestral variant infection and assessed their cross-reactivity to these and the more recent Delta and Omicron variants. We developed a high-throughput approach to obtain immunoglobulin sequences and produce monoclonal antibodies for functional assessment from single B cells. Infection with any variant elicited similar cross-binding antibody responses exhibiting a remarkably conserved hierarchy of epitope immunodominance. Furthermore, convergent V gene usage and similar public B cell clones were elicited regardless of infecting variant. These convergent responses despite antigenic variation may represent a general immunological principle that accounts for the continued efficacy of vaccines based on a single ancestral variant.
- Published
- 2022
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