TY - JOUR
T1 - Early non-neutralizing, afucosylated antibody responses are associated with COVID-19 severity
AU - Chakraborty, Saborni
AU - Gonzalez, Joseph C.
AU - Sievers, Benjamin L.
AU - Mallajosyula, Vamsee
AU - Chakraborty, Srijoni
AU - Dubey, Megha
AU - Ashraf, Usama
AU - Cheng, Bowie Yik Ling
AU - Kathale, Nimish
AU - Tran, Kim Quyen Thi
AU - Scallan, Courtney
AU - Sinnott, Aanika
AU - Cassidy, Arianna
AU - Chen, Steven T.
AU - Gelbart, Terri
AU - Gao, Fei
AU - Golan, Yarden
AU - Ji, Xuhuai
AU - Kim-Schulze, Seunghee
AU - Prahl, Mary
AU - Gaw, Stephanie L.
AU - Gnjatic, Sacha
AU - Marron, Thomas U.
AU - Merad, Miriam
AU - Arunachalam, Prabhu S.
AU - Boyd, Scott D.
AU - Davis, Mark M.
AU - Holubar, Marisa
AU - Khosla, Chaitan
AU - Maecker, Holden T.
AU - Maldonado, Yvonne
AU - Mellins, Elizabeth D.
AU - Nadeau, Kari C.
AU - Pulendran, Bali
AU - Singh, Upinder
AU - Subramanian, Aruna
AU - Utz, Paul J.
AU - Sherwood, Robert
AU - Zhang, Sheng
AU - Jagannathan, Prasanna
AU - Tan, Gene S.
AU - Wang, Taia T.
N1 - Publisher Copyright:
© 2022 The Authors.
PY - 2022/3/9
Y1 - 2022/3/9
N2 - A damaging inflammatory response is implicated in the pathogenesis of severe coronavirus disease 2019 (COVID-19), but mechanisms contributing to this response are unclear. In two prospective cohorts, early non-neutralizing, afucosylated immunoglobulin G (IgG) antibodies specific to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) were associated with progression from mild to more severe COVID-19. To study the biology of afucosylated IgG immune complexes, we developed an in vivo model that revealed that human IgG-Fc-gamma receptor (FcγR) interactions could regulate inflammation in the lung. Afucosylated IgG immune complexes isolated from patients with COVID-19 induced inflammatory cytokine production and robust infiltration of the lung by immune cells. In contrast to the antibody structures that were associated with disease progression, antibodies that were elicited by messenger RNA SARS-CoV-2 vaccines were highly fucosylated and enriched in sialylation, both modifications that reduce the inflammatory potential of IgG. Vaccine-elicited IgG did not promote an inflammatory lung response. These results show that human IgG-FcγR interactions regulate inflammation in the lung and define distinct lung activities mediated by the IgG that are associated with protection against, or progression to, severe COVID-19.
AB - A damaging inflammatory response is implicated in the pathogenesis of severe coronavirus disease 2019 (COVID-19), but mechanisms contributing to this response are unclear. In two prospective cohorts, early non-neutralizing, afucosylated immunoglobulin G (IgG) antibodies specific to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) were associated with progression from mild to more severe COVID-19. To study the biology of afucosylated IgG immune complexes, we developed an in vivo model that revealed that human IgG-Fc-gamma receptor (FcγR) interactions could regulate inflammation in the lung. Afucosylated IgG immune complexes isolated from patients with COVID-19 induced inflammatory cytokine production and robust infiltration of the lung by immune cells. In contrast to the antibody structures that were associated with disease progression, antibodies that were elicited by messenger RNA SARS-CoV-2 vaccines were highly fucosylated and enriched in sialylation, both modifications that reduce the inflammatory potential of IgG. Vaccine-elicited IgG did not promote an inflammatory lung response. These results show that human IgG-FcγR interactions regulate inflammation in the lung and define distinct lung activities mediated by the IgG that are associated with protection against, or progression to, severe COVID-19.
UR - http://www.scopus.com/inward/record.url?scp=85126152402&partnerID=8YFLogxK
U2 - 10.1126/scitranslmed.abm7853
DO - 10.1126/scitranslmed.abm7853
M3 - Article
C2 - 35040666
AN - SCOPUS:85126152402
VL - 14
JO - Science Translational Medicine
JF - Science Translational Medicine
SN - 1946-6234
IS - 635
M1 - abm7853
ER -