Rxivist logo

The emergence of SARS-CoV-2 led to pandemic spread of coronavirus disease 2019 (COVID-19), manifesting with respiratory symptoms and multi-organ dysfunction. Detailed characterization of virus-neutralizing antibodies and target epitopes is needed to understand COVID-19 pathophysiology and guide immunization strategies. Among 598 human monoclonal antibodies (mAbs) from ten COVID-19 patients, we identified 40 strongly neutralizing mAbs. The most potent mAb CV07-209 neutralized authentic SARS-CoV-2 with IC50 of 3.1 ng/ml. Crystal structures of two mAbs in complex with the SARS-CoV-2 receptor-binding domain at 2.55 and 2.70 A revealed a direct block of ACE2 attachment. Interestingly, some of the near-germline SARS-CoV-2 neutralizing mAbs reacted with mammalian self-antigens. Prophylactic and therapeutic application of CV07-209 protected hamsters from SARS-CoV-2 infection, weight loss and lung pathology. Our results show that non-self-reactive virus-neutralizing mAbs elicited during SARS-CoV-2 infection are a promising therapeutic strategy. ### Competing Interest Statement Related to this work the German Center for Neurodegenerative Diseases (DZNE) and the Charite - Universitaetsmedizin have filed a patent application on which JK, SMR, HCK, ESS, VMC, MAM, DW, LES and HP are named as inventors.

Download data

  • Downloaded 2,011 times
  • Download rankings, all-time:
    • Site-wide: 8,437
    • In immunology: 276
  • Year to date:
    • Site-wide: 11,854
  • Since beginning of last month:
    • Site-wide: 20,206

Altmetric data

Downloads over time

Distribution of downloads per paper, site-wide