Cited by 1,188SARS-CoV-2 and COVID-19 ResearchMonoclonal and Polyclonal Antibodies Researchvaccines and immunoinformatics approaches

Potent Neutralizing Antibodies against SARS-CoV-2 Identified by High-Throughput Single-Cell Sequencing of Convalescent Patients’ B Cells

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Cao, Yunlong, Su, Bin, Guo, Xianghua, Sun, Wenjie, Deng, Yongqiang, Bao, Linlin, Zhu, Qinyu, Zhang, Xu, Zheng, Yinghui, Geng, Chenyang, Chai, Xiaoran, He, Runsheng, Li, Xiaofeng, Lv, Qi, Zhu, Hua, Deng, Wei, Xu, Yanfeng, Wang, Yanjun, Qiao, Luxin, Tan, Yafang, Song, Liyang, Wang, Guopeng, Du, Xiaoxia, Gao, Ning, Liu, Jiangning, Xiao, Junyu, Su, Xiao-dong, Du, Zongmin, Feng, Yingmei, Qin, Chuan, Qin, Chengfeng, Jin, Ronghua, Xie, X. Sunney·2020·Cell

Abstract

The COVID-19 pandemic urgently needs therapeutic and prophylactic interventions. Here, we report the rapid identification of SARS-CoV-2-neutralizing antibodies by high-throughput single-cell RNA and VDJ sequencing of antigen-enriched B cells from 60 convalescent patients. From 8,558 antigen-binding IgG1+ clonotypes, 14 potent neutralizing antibodies were identified, with the most potent one, BD-368-2, exhibiting an IC 50 of 1.2 and 15 ng/mL against pseudotyped and authentic SARS-CoV-2, respectively. BD-368-2 also displayed strong therapeutic and prophylactic efficacy in SARS-CoV-2-infected hACE2-transgenic mice. Additionally, the 3.8 Å cryo-EM structure of a neutralizing antibody in complex with the spike-ectodomain trimer revealed the antibody's epitope overlaps with the ACE2 binding site. Moreover, we demonstrated that SARS-CoV-2-neutralizing antibodies could be directly selected based on similarities of their predicted CDR3 H structures to those of SARS-CoV-neutralizing antibodies. Altogether, we showed that human neutralizing antibodies could be efficiently discovered by high-throughput single B cell sequencing in response to pandemic infectious diseases.

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Authors
Cao, Y., Su, B., Guo, X., Sun, W., Deng, Y., Bao, L., Zhu, Q., Zhang, X., Zheng, Y., Geng, C., Chai, X., He, R., Li, X., Lv, Q., Zhu, H., Deng, W., Xu, Y., Wang, Y., Qiao, L., Tan, Y., Song, L., Wang, G., Du, X., Gao, N., Liu, J., Xiao, J., Su, X.-D., Du, Z., Feng, Y., Qin, C., Qin, C., Jin, R., & Xie, X. S.
Affiliations
  • Peking University (CN)
  • Capital Medical University (CN)
  • Chinese Academy of Medical Sciences & Peking Union Medical College (CN)
  • Academy of Military Medical Sciences (CN)
Corresponding author
  • Qin, Chuan
  • Jin, Ronghua
  • Xie, X. Sunney
Venue
Cell
Publisher
Elsevier BV
Published
2020-07
Volume
182
Issue
1
Pages
73-84.e16
ISSN
0092-8674 (ISSN-L)
OpenAlex
W3024602798
Cited by
1,188
References
82
Citations by year
2026: 25 · 2025: 58 · 2024: 74 · 2023: 116 · 2022: 204 · 2021: 468 · 2020: 242
FWCI
33.73
Type
journal article
Language
en
Open access
Locations
  • Cell (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Beijing Advanced Innovation Center for Genomics
  • Fundamental Research Funds for the Central Universities (A20ZX00846)
  • Beijing Municipal Commission of Science and Technology (Z201100005420018)
  • National Center for Protein Sciences at Peking University
  • National Mega projects of China for Major Infectious Diseases (2017ZX10304402)
  • Development Project of China (2016YFD0500304)
  • CAMS initiative for Innovative Medicine of China (2016-12M-2-006)
Topics
  • Health Sciences › Medicine › Infectious Diseases › SARS-CoV-2 and COVID-19 Research
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Monoclonal and Polyclonal Antibodies Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › vaccines and immunoinformatics approaches
Keywords
SARS-CoV-2, neutralizing antibodies, convalescent patients, B cells, single-cell RNA sequencing, antibody discovery, spike protein, ACE2 binding site, therapeutic antibodies, hACE2 transgenic mice, cryo-EM structure
MeSH terms
COVID-19, Animals, Antibodies, Monoclonal, B-Lymphocytes, Convalescence, Humans, Pneumonia, Viral, Sequence Analysis, RNA, Coronavirus Infections, VDJ Exons, Mice, Antibodies, Neutralizing, Pandemics, Single-Cell Analysis, High-Throughput Nucleotide Sequencing, Spike Glycoprotein, Coronavirus

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