Functional SARS-CoV-2-Specific Immune Memory Persists after Mild COVID-19.

Functional SARS-CoV-2-Specific Immune Memory Persists after Mild COVID-19.
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功能性SARS-CoV-2特异性免疫记忆在轻度COVID-19后持续存在。

DOI:
10.1016/j.cell.2020.11.029
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发表时间:
2021-01-07
期刊:
影响因子:
64.5
通讯作者:
Pepper M
Pepper M
中科院分区:
生物学1区
文献类型:
--
作者:
Rodda LB;Netland J;Shehata L;Pruner KB;Morawski PA;Thouvenel CD;Takehara KK;Eggenberger J;Hemann EA;Waterman HR;Fahning ML;Chen Y;Hale M;Rathe J;Stokes C;Wrenn S;Fiala B;Carter L;Hamerman JA;King NP;Gale M Jr;Campbell DJ;Rawlings DJ;Pepper M

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严重急性呼吸综合征冠状病毒 2 (SARS-CoV-2) 病毒正在全球引发大流行,且病例持续增加。大多数感染者都会出现轻微症状的 2019 冠状病毒病 (COVID-19),但尚不清楚这是否会诱发持久的免疫记忆,从而有助于免疫力。我们对从轻度 COVID-19 中康复的个体进行了纵向评估,以确定他们是否发展并维持多方面的 SARS-CoV-2 特异性免疫记忆。康复者体内产生了 SARS-CoV-2 特异性免疫球蛋白 (IgG) 抗体,可中和血浆以及记忆 B 和记忆 T 细胞,并且持续至少 3 个月。我们的数据进一步表明,SARS-CoV-2 特异性 IgG 记忆 B 细胞随着时间的推移而增加。此外,SARS-CoV-2 特异性记忆淋巴细胞表现出与有效抗病毒功能相关的特征:记忆 T 细胞分泌细胞因子并在再次遇到抗原时扩增,而记忆 B 细胞在表达为单克隆抗体时表达能够中和病毒的受体。因此,轻度的 COVID-19 会引发记忆淋巴细胞,这些淋巴细胞会持续存在并表现出抗病毒免疫的功能特征。对轻度 COVID-19 后免疫记忆的纵向分析引发了记忆淋巴细胞的持续存在并显示出抗病毒免疫的功能特征。
The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) virus is causing a global pandemic, and cases continue to rise. Most infected individuals experience mildly symptomatic coronavirus disease 2019 (COVID-19), but it is unknown whether this can induce persistent immune memory that could contribute to immunity. We performed a longitudinal assessment of individuals recovered from mild COVID-19 to determine whether they develop and sustain multifaceted SARS-CoV-2-specific immunological memory. Recovered individuals developed SARS-CoV-2-specific immunoglobulin (IgG) antibodies, neutralizing plasma, and memory B and memory T cells that persisted for at least 3 months. Our data further reveal that SARS-CoV-2-specific IgG memory B cells increased over time. Additionally, SARS-CoV-2-specific memory lymphocytes exhibited characteristics associated with potent antiviral function: memory T cells secreted cytokines and expanded upon antigen re-encounter, whereas memory B cells expressed receptors capable of neutralizing virus when expressed as monoclonal antibodies. Therefore, mild COVID-19 elicits memory lymphocytes that persist and display functional hallmarks of antiviral immunity. Longitudinal analysis of immune memory following mild COVID-19 elicits memory lymphocytes that persist and display functional hallmarks of antiviral immunity.
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