当前位置:科学网首页 > 小柯机器人 >详情
SARS-CoV-2强力中和抗体可持续数月
作者:小柯机器人 发布时间:2020/10/31 21:30:26

美国西奈山伊坎医学院Carlos Cordon-Cardo等研究人员发现,SARS-CoV-2强力中和抗体可持续数月。该项研究成果于2020年10月28日在线发表在《科学》杂志上。

根据在纽约市西奈山卫生系统筛查的30,082个人的数据集,研究人员发现,绝大多数具有轻度至中度COVID-19的感染者都经历了针对病毒性刺突蛋白的强大IgG抗体反应。研究人员还发现,效价至少在大约5个月的时间内相对稳定,并且抗突刺蛋白结合效价与SARS-CoV-2的中和作用显著相关。
 
这些数据表明,超过90%的血清转化者产生可检测的中和抗体反应。这些滴度在感染后的几个月中保持相对稳定。
 
SARS-CoV-2造成了全球大流行,造成大量死亡。关于抗体对病毒的反应稳定性、功能性和寿命的问题仍未得到解答。
 
附:英文原文

Title: Robust neutralizing antibodies to SARS-CoV-2 infection persist for months

Author: Ania Wajnberg, Fatima Amanat, Adolfo Firpo, Deena R. Altman, Mark J. Bailey, Mayce Mansour, Meagan McMahon, Philip Meade, Damodara Rao Mendu, Kimberly Muellers, Daniel Stadlbauer, Kimberly Stone, Shirin Strohmeier, Viviana Simon, Judith Aberg, David L. Reich, Florian Krammer, Carlos Cordon-Cardo

Issue&Volume: 2020/10/28

Abstract: SARS-CoV-2 has caused a global pandemic with millions infected and numerous fatalities. Questions regarding the robustness, functionality, and longevity of the antibody response to the virus remain unanswered. Here we report that the vast majority of infected individuals with mild-to-moderate COVID-19 experience robust IgG antibody responses against the viral spike protein, based on a dataset of 30,082 individuals screened at Mount Sinai Health System in New York City. We also show that titers are relatively stable for at least a period approximating 5 months and that anti-spike binding titers significantly correlate with neutralization of authentic SARS-CoV-2. Our data suggests that more than 90% of seroconverters make detectible neutralizing antibody responses. These titers remain relatively stable for several months after infection.

DOI: 10.1126/science.abd7728

Source: https://science.sciencemag.org/content/early/2020/10/27/science.abd7728

期刊信息
Science:《科学》,创刊于1880年。隶属于美国科学促进会,最新IF:41.037