Neutralization of SARS-CoV-2 spike 69/70 deletion, E484K and N501Y variants by BNT162b2 vaccine-elicited sera

Neutralization of SARS-CoV-2 spike 69/70 deletion, E484K and N501Y variants by BNT162b2 vaccine-elicited sera
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DOI:
10.1101/2021.01.27.427998
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发表时间:
2021-02-08
期刊:
影响因子:
82.9
通讯作者:
Shi, Pei-Yong
Shi, Pei-Yong
中科院分区:
医学1区
文献类型:
--
作者:
Xie, Xuping;Liu, Yang;Shi, Pei-Yong

文献摘要

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我们设计了三种严重急性呼吸综合征冠状病毒 2 (SARS-CoV-2) 病毒,其中包含来自新出现的英国 (UK) 和南非 (SA) 变种的关键尖峰突变:来自英国和南非的 N501Y; 69/70-删除+N501Y+D614G来自英国;以及 SA 的 E484K + N501Y + D614G。 20 种 BTN162b2 疫苗引发的人血清针对三种突变病毒的中和几何平均滴度 (GMT) 是针对亲代病毒的 GMT 的 0.81 至 1.46 倍,表明这些突变对两剂 BNT162b2 剂量引发的血清中和影响很小。来自 BNT162b2 疫苗接受者的人血清可以 中和 SARS-CoV-2 病毒,该病毒含有全球流行的受关注变体中存在的尖峰突变。
We engineered three severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) viruses containing key spike mutations from the newly emerged United Kingdom (UK) and South African (SA) variants: N501Y from UK and SA; 69/70-deletion + N501Y + D614G from UK; and E484K + N501Y + D614G from SA. Neutralization geometric mean titers (GMTs) of 20 BTN162b2 vaccine-elicited human sera against the three mutant viruses were 0.81- to 1.46-fold of the GMTs against parental virus, indicating small effects of these mutations on neutralization by sera elicited by two BNT162b2 doses.Human sera from recipients of the BNT162b2 vaccine can neutralize SARS-CoV-2 viruses containing spike mutations present in globally circulating variants of concern.