Rapid, simplified whole blood-based multiparameter assay to quantify and phenotype SARS-CoV-2-specific T-cells.
Rapid, simplified whole blood-based multiparameter assay to quantify and phenotype SARS-CoV-2-specific T-cells.
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DOI:
10.1183/13993003.00285-2021
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发表时间:
2022-01
期刊:
影响因子:
--
通讯作者:
Wilkinson RJ
中科院分区:
文献类型:
--
作者:
Riou C;Schäfer G;du Bruyn E;Goliath RT;Stek C;Mou H;Hung D;Wilkinson KA;Wilkinson RJ
Rapid tests to evaluate severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)-specific T-cell responses are urgently needed to decipher protective immunity and aid monitoring vaccine-induced immunity. Using a rapid whole blood assay requiring a minimal amount of blood, we measured qualitatively and quantitatively SARS-CoV-2-specific CD4 T-cell responses in 31 healthcare workers using flow cytometry. 100% of COVID-19 convalescent participants displayed a detectable SARS-CoV-2-specific CD4 T-cell response. SARS-CoV-2-responding cells were also detected in 40.9% of participants with no COVID-19-associated symptoms or who tested PCR-negative. Phenotypic assessment indicated that, in COVID-19 convalescent participants, SARS-CoV-2 CD4 responses displayed an early differentiated memory phenotype with limited capacity to produce interferon (IFN)-γ. Conversely, in participants with no reported symptoms, SARS-CoV-2 CD4 responses were enriched in late differentiated cells, coexpressing IFN-γ and tumour necrosis factor-α and also Granzyme B. This proof-of-concept study presents a scalable alternative to peripheral blood mononuclear cell-based assays to enumerate and phenotype SARS-CoV-2-responding T-cells, thus representing a practical tool to monitor adaptive immunity due to natural infection or vaccine trials. This proof-of-concept study shows that SARS-CoV-2 T-cell responses are easily detectable using a rapid whole blood assay requiring minimal blood volume. Such assay represents a suitable tool to monitor adaptive immunity in vaccine trials. https://bit.ly/3yZHtcL
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影响因子:
6.7
作者:
Parry HM;Dowell AC;Zuo J;Verma K;Kinsella FAM;Begum J;Croft W;Sharma-Oates A;Pratt G;Moss P
通讯作者:
Moss P
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100.3
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7.3
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Juno JA;van Bockel D;Kent SJ;Kelleher AD;Zaunders JJ;Munier CM
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Munier CM
DOI:
10.7196/samj.2020.v110i10.15157
发表时间:
2020-09-01
期刊:
SAMJ: South African Medical Journal
影响因子:
--
作者:
Mendelson, M;Booyens, L;Wasserman, S
通讯作者:
Wasserman, S
影响因子:
5.8
作者:
Liu, Lei;Liu, Wanbing;Zheng, Shangen
通讯作者:
Zheng, Shangen