A SARS-CoV-2 neutralizing antibody with extensive Spike binding coverage and modified for optimal therapeutic outcomes.

Abstract

COVID-19 pandemic caused by SARS-CoV-2 constitutes a global public health crisis with enormous economic consequences. Monoclonal antibodies against SARS-CoV-2 can provide an important treatment option to fight COVID-19, especially for the most vulnerable populations. In this work, potent antibodies binding to SARS-CoV-2 Spike protein were identified from COVID-19 convalescent patients. Among them, P4A1 interacts directly with and covers majority of the Receptor Binding Motif of the Spike Receptor-Binding Domain, shown by high-resolution complex structure analysis. We further demonstrate the binding and neutralizing activities of P4A1 against wild type and mutant Spike proteins or pseudoviruses. P4A1 was subsequently engineered to reduce the potential risk for Antibody-Dependent Enhancement of infection and to extend its half-life. The engineered antibody exhibits an optimized pharmacokinetic and safety profile, and it results in complete viral clearance in a rhesus monkey model of COVID-19 following a single injection. These data suggest its potential against SARS-CoV-2 related diseases.

• Authors: Yu Guo, Lisu Huang, Guangshun Zhang, Yanfeng Yao, He Zhou, Shu Shen, Bingqing Shen, Bo Li, Xin Li, Qian Zhang, Mingjie Chen, Da Chen, Jia Wu, Dan Fu, Xinxin Zeng, Mingfang Feng, Chunjiang Pi, Yuan Wang, Xingdong Zhou, Minmin Lu, Yarong Li, Yaohui Fang, Yun-Yueh Lu, Xue Hu, Shanshan Wang, Wanju Zhang, Ge Gao, Francisco Adrian, Qisheng Wang, Feng Yu, Yun Peng, Alexander G Gabibov, Juan Min, Yuhui Wang, Heyu Huang, Alexey Stepanov, Wei Zhang, Yan Cai, Junwei Liu, Zhiming Yuan, Chen Zhang, Zhiyong Lou, Fei Deng, Hongkai Zhang, Chao Shan, Liang Schweizer, Kun Sun, Zihe Rao
• Journal: Nature communications (Nat Commun) Vol. 12 Issue 1 Pg. 2623 (05 11 2021) ISSN: 2041-1723 [Electronic] England
• PMID: 33976198 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)

Chemical References

• Antibodies, Monoclonal
• Antibodies, Neutralizing
• Antibodies, Viral
• Spike Glycoprotein, Coronavirus
• spike protein, SARS-CoV-2

Topics

• Animals
• Antibodies, Monoclonal (immunology, metabolism, therapeutic use)
• Antibodies, Neutralizing (chemistry, immunology, metabolism)
• Antibodies, Viral (immunology, metabolism)
• Antibody Specificity (immunology)
• COVID-19 (epidemiology, immunology)
• Cell Line, Tumor
• Cells, Cultured
• Chlorocebus aethiops
• Female
• Humans
• Macaca mulatta
• Male
• Mutation
• Pandemics
• Protein Binding
• Protein Domains
• SARS-CoV-2 (drug effects, immunology, metabolism)
• Spike Glycoprotein, Coronavirus (genetics, immunology, metabolism)
• Treatment Outcome
• Vero Cells
• COVID-19 Drug Treatment