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Deprecated: Implicit conversion from float 267.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Cell 2020 ; 183 (4): 996-1012.e19 Nephropedia Template TP
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Antigen-Specific Adaptive Immunity to SARS-CoV-2 in Acute COVID-19 and Associations with Age and Disease Severity #MMPMID33010815
Rydyznski Moderbacher C; Ramirez SI; Dan JM; Grifoni A; Hastie KM; Weiskopf D; Belanger S; Abbott RK; Kim C; Choi J; Kato Y; Crotty EG; Kim C; Rawlings SA; Mateus J; Tse LPV; Frazier A; Baric R; Peters B; Greenbaum J; Ollmann Saphire E; Smith DM; Sette A; Crotty S
Cell 2020[Nov]; 183 (4): 996-1012.e19 PMID33010815show ga
Limited knowledge is available on the relationship between antigen-specific immune responses and COVID-19 disease severity. We completed a combined examination of all three branches of adaptive immunity at the level of SARS-CoV-2-specific CD4(+) and CD8(+) T cell and neutralizing antibody responses in acute and convalescent subjects. SARS-CoV-2-specific CD4(+) and CD8(+) T cells were each associated with milder disease. Coordinated SARS-CoV-2-specific adaptive immune responses were associated with milder disease, suggesting roles for both CD4(+) and CD8(+) T cells in protective immunity in COVID-19. Notably, coordination of SARS-CoV-2 antigen-specific responses was disrupted in individuals >/= 65 years old. Scarcity of naive T cells was also associated with aging and poor disease outcomes. A parsimonious explanation is that coordinated CD4(+) T cell, CD8(+) T cell, and antibody responses are protective, but uncoordinated responses frequently fail to control disease, with a connection between aging and impaired adaptive immune responses to SARS-CoV-2.