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Cell Rep . Induction of broadly reactive influenza antibodies increases susceptibility to autoimmunity

tetano

Editor, Senior Moderator
Cell Rep


. 2022 Mar 8;38(10):110482.
doi: 10.1016/j.celrep.2022.110482.
Induction of broadly reactive influenza antibodies increases susceptibility to autoimmunity


Jocelyn G Labombarde[SUP] 1 [/SUP], Meenu R Pillai[SUP] 1 [/SUP], Marie Wehenkel[SUP] 1 [/SUP], Chun-Yang Lin[SUP] 2 [/SUP], Rachael Keating[SUP] 1 [/SUP], Scott A Brown[SUP] 1 [/SUP], Jeremy Chase Crawford[SUP] 1 [/SUP], David C Brice[SUP] 1 [/SUP], Ashley H Castellaw[SUP] 1 [/SUP], Alexandra H Mandarano[SUP] 1 [/SUP], Clifford S Guy[SUP] 1 [/SUP], Juan R Mejia[SUP] 1 [/SUP], Carlessia D Lewis[SUP] 1 [/SUP], Ti-Cheng Chang[SUP] 3 [/SUP], Christine M Oshansky[SUP] 1 [/SUP], Sook-San Wong[SUP] 4 [/SUP], Richard J Webby[SUP] 4 [/SUP], Mei Yan[SUP] 5 [/SUP], Quan-Zhen Li[SUP] 5 [/SUP], Tony N Marion[SUP] 6 [/SUP], Paul G Thomas[SUP] 1 [/SUP], Maureen A McGargill[SUP] 7 [/SUP]



Affiliations

Abstract

Infection and vaccination repeatedly expose individuals to antigens that are conserved between influenza virus subtypes. Nevertheless, antibodies recognizing variable influenza epitopes greatly outnumber antibodies reactive against conserved epitopes. Elucidating factors contributing to the paucity of broadly reactive influenza antibodies remains a major obstacle for developing a universal influenza vaccine. Here, we report that inducing broadly reactive influenza antibodies increases autoreactive antibodies in humans and mice and exacerbates disease in four distinct models of autoimmune disease. Importantly, transferring broadly reactive influenza antibodies augments disease in the presence of inflammation or autoimmune susceptibility. Further, broadly reactive influenza antibodies spontaneously arise in mice with defects in B cell tolerance. Together, these data suggest that self-tolerance mechanisms limit the prevalence of broadly reactive influenza antibodies, which can exacerbate disease in the context of additional risk factors.

Keywords: antibody; autoimmunity; influenza; universal influenza vaccine.
 
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