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TitleStructure-guided antibody cocktail for prevention and treatment of COVID-19.
Journal, issue, pagesPLoS Pathog, Vol. 17, Issue 10, Page e1009704, Year 2021
Publish dateOct 21, 2021
AuthorsShih-Chieh Su / Tzu-Jing Yang / Pei-Yu Yu / Kang-Hao Liang / Wan-Yu Chen / Chun-Wei Yang / Hsiu-Ting Lin / Mei-Jung Wang / Ruei-Min Lu / Hsien-Cheng Tso / Meng-Jhe Chung / Tzung-Yang Hsieh / Yu-Ling Chang / Shin-Chang Lin / Fang-Yu Hsu / Feng-Yi Ke / Yi-Hsuan Wu / Yu-Chyi Hwang / I-Ju Liu / Jian-Jong Liang / Chun-Che Liao / Hui-Ying Ko / Cheng-Pu Sun / Ping-Yi Wu / Jia-Tsrong Jan / Yuan-Chih Chang / Yi-Ling Lin / Mi-Hua Tao / Shang-Te Danny Hsu / Han-Chung Wu /
PubMed AbstractDevelopment of effective therapeutics for mitigating the COVID-19 pandemic is a pressing global need. Neutralizing antibodies are known to be effective antivirals, as they can be rapidly deployed to ...Development of effective therapeutics for mitigating the COVID-19 pandemic is a pressing global need. Neutralizing antibodies are known to be effective antivirals, as they can be rapidly deployed to prevent disease progression and can accelerate patient recovery without the need for fully developed host immunity. Here, we report the generation and characterization of a series of chimeric antibodies against the receptor-binding domain (RBD) of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) spike protein. Some of these antibodies exhibit exceptionally potent neutralization activities in vitro and in vivo, and the most potent of our antibodies target three distinct non-overlapping epitopes within the RBD. Cryo-electron microscopy analyses of two highly potent antibodies in complex with the SARS-CoV-2 spike protein suggested they may be particularly useful when combined in a cocktail therapy. The efficacy of this antibody cocktail was confirmed in SARS-CoV-2-infected mouse and hamster models as prophylactic and post-infection treatments. With the emergence of more contagious variants of SARS-CoV-2, cocktail antibody therapies hold great promise to control disease and prevent drug resistance.
External linksPLoS Pathog / PubMed:34673836 / PubMed Central
MethodsEM (single particle)
Resolution3.6 - 3.9 Å
Structure data

31470

7f62

EMDB-31470, PDB-7f62:
Cryo-EM structure of SARS-CoV-2 spike in complex with a neutralizing antibody chAb-25 (Focused refinement of S-RBD and chAb-25 region)
Method: EM (single particle) / Resolution: 3.6 Å

31471

7f63

EMDB-31471, PDB-7f63:
Cryo-EM structure of SARS-CoV-2 spike in complex with a neutralizing antibody chAb-45 (Focused refinement of S-RBD and chAb-45 region)
Method: EM (single particle) / Resolution: 3.9 Å

Source
  • homo sapiens (human)
  • severe acute respiratory syndrome coronavirus 2
KeywordsVIRAL PROTEIN / SARS-CoV-2 / Spike protein / Neutralizing antibody

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