Impaired Priming of SARS-CoV-2-Specific Naive CD8(+) T Cells in Older Subjects.
Impaired Priming of SARS-CoV-2-Specific Naive CD8(+) T Cells in Older Subjects.
复制标题
在老年受试者中,SARS-COV-2特异性CD8(+)T细胞的启动受损。
DOI:
10.3389/fimmu.2021.693054
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发表时间:
2021
影响因子:
7.3
通讯作者:
Nicoli F
中科院分区:
文献类型:
--
作者:
Gallerani E;Proietto D;Dallan B;Campagnaro M;Pacifico S;Albanese V;Marzola E;Marconi P;Caputo A;Appay V;Gavioli R;Nicoli F
Advanced age is associated with severe symptoms and death upon SARS-CoV-2 infection. Virus-specific CD8+ T-cell responses have shown to be protective toward critical COVID-19 manifestations, suggesting that suboptimal cellular immunity may contribute to the age-pattern of the disease. The induction of a CD8+ T-cell response against an emerging pathogen like SARS-CoV-2 relies on the activation of naive T cells. To investigate whether the primary CD8+ T-cell response against this virus is defective in advanced age, we used an in vitro approach to prime SARS-CoV-2-specific naive CD8+ T cells from healthy, unexposed donors of different age groups. Compared to younger adults, older individuals display a poor SARS-CoV-2-specific T-cell priming capacity in terms of both magnitude and quality of the response. In addition, older subjects recognize a lower number of epitopes. Our results implicate that immune aging is associated with altered primary SARS-CoV-2-specific CD8+ T-cell responses.
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影响因子:
32.4
作者:
Ferretti AP;Kula T;Wang Y;Nguyen DMV;Weinheimer A;Dunlap GS;Xu Q;Nabilsi N;Perullo CR;Cristofaro AW;Whitton HJ;Virbasius A;Olivier KJ Jr;Buckner LR;Alistar AT;Whitman ED;Bertino SA;Chattopadhyay S;MacBeath G
通讯作者:
MacBeath G
影响因子:
4.6
作者:
Papagno, Laura;Kuse, Nozomi;Nicoli, Francesco
通讯作者:
Nicoli, Francesco
影响因子:
7.8
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Briceno, Olivia;Lissina, Anna;Appay, Victor
通讯作者:
Appay, Victor
影响因子:
82.9
作者:
通讯作者:
--
影响因子:
64.5
作者:
Moderbacher, Carolyn Rydyznski;Ramirez, Sydney, I;Crotty, Shane
通讯作者:
Crotty, Shane