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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+Rep+Med 2021 ; 2 (7): 100355 Nephropedia Template TP
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Impact of SARS-CoV-2 variants on the total CD4(+) and CD8(+) T cell reactivity in infected or vaccinated individuals #MMPMID34230917
Tarke A; Sidney J; Methot N; Yu ED; Zhang Y; Dan JM; Goodwin B; Rubiro P; Sutherland A; Wang E; Frazier A; Ramirez SI; Rawlings SA; Smith DM; da Silva Antunes R; Peters B; Scheuermann RH; Weiskopf D; Crotty S; Grifoni A; Sette A
Cell Rep Med 2021[Jul]; 2 (7): 100355 PMID34230917show ga
The emergence of SARS-CoV-2 variants with evidence of antibody escape highlight the importance of addressing whether the total CD4(+) and CD8(+) T cell recognition is also affected. Here, we compare SARS-CoV-2-specific CD4(+) and CD8(+) T cells against the B.1.1.7, B.1.351, P.1, and CAL.20C lineages in COVID-19 convalescents and in recipients of the Moderna (mRNA-1273) or Pfizer/BioNTech (BNT162b2) COVID-19 vaccines. The total reactivity against SARS-CoV-2 variants is similar in terms of magnitude and frequency of response, with decreases in the 10%-22% range observed in some assay/VOC combinations. A total of 7% and 3% of previously identified CD4(+) and CD8(+) T cell epitopes, respectively, are affected by mutations in the various VOCs. Thus, the SARS-CoV-2 variants analyzed here do not significantly disrupt the total SARS-CoV-2 T cell reactivity; however, the decreases observed highlight the importance for active monitoring of T cell reactivity in the context of SARS-CoV-2 evolution.