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Nature . Anti-SARS-CoV-2 receptor binding domain antibody evolution after mRNA vaccination

tetano

Editor, Senior Moderator
Nature


. 2021 Oct 7.
doi: 10.1038/s41586-021-04060-7. Online ahead of print.
Anti-SARS-CoV-2 receptor binding domain antibody evolution after mRNA vaccination


Alice Cho[SUP] #[/SUP][SUP] 1 [/SUP], Frauke Muecksch[SUP] #[/SUP][SUP] 2 [/SUP], Dennis Schaefer-Babajew[SUP] #[/SUP][SUP] 1 [/SUP], Zijun Wang[SUP] #[/SUP][SUP] 1 [/SUP], Shlomo Finkin[SUP] #[/SUP][SUP] 1 [/SUP], Christian Gaebler[SUP] 1 [/SUP], Victor Ramos[SUP] 1 [/SUP], Melissa Cipolla[SUP] 1 [/SUP], Pilar Mendoza[SUP] 1 [/SUP], Marianna Agudelo[SUP] 1 [/SUP], Eva Bednarski[SUP] 2 [/SUP], Justin DaSilva[SUP] 2 [/SUP], Irina Shimeliovich[SUP] 1 [/SUP], Juan Dizon[SUP] 1 [/SUP], Mridushi Daga[SUP] 1 [/SUP], Katrina Millard[SUP] 1 [/SUP], Martina Turroja[SUP] 1 [/SUP], Fabian Schmidt[SUP] 2 [/SUP], Fengwen Zhang[SUP] 2 [/SUP], Tarek Ben Tanfous[SUP] 1 [/SUP], Mila Jankovic[SUP] 1 [/SUP], Thiago Y Oliveria[SUP] 1 [/SUP], Anna Gazumyan[SUP] 1 [/SUP], Marina Caskey[SUP] 3 [/SUP], Paul D Bieniasz[SUP] 4 5 [/SUP], Theodora Hatziioannou[SUP] 6 [/SUP], Michel C Nussenzweig[SUP] 7 8 [/SUP]



Affiliations

Abstract

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection produces B cell responses that continue to evolve for at least one year. During that time, memory B cells express increasingly broad and potent antibodies that are resistant to mutations found in variants of concern[SUP]1[/SUP]. As a result, vaccination of coronavirus disease 2019 (COVID-19) convalescent individuals with currently available mRNA vaccines produces high levels of plasma neutralizing activity against all variants tested[SUP]1,2[/SUP]. Here we examine memory B cell evolution 5 months after vaccination with either Moderna (mRNA-1273) or Pfizer-BioNTech (BNT162b2) mRNA vaccines in a cohort of SARS-CoV-2 naive individuals. Between prime and boost, memory B cells produce antibodies that evolve increased neutralizing activity, but there is no further increase in potency or breadth thereafter. Instead, memory B cells that emerge 5 months after vaccination of naive individuals express antibodies that are similar to those that dominate the initial response. While individual memory antibodies selected over time by natural infection have greater potency and breadth than antibodies elicited by vaccination, the overall neutralizing potency of plasma is greater following vaccination. These results suggest that boosting vaccinated individuals with currently available mRNA vaccines will increase plasma neutralizing activity but may not produce antibodies with equivalent breadth to those obtained by vaccinating convalescent individuals.
 
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