A highly potent antibody effective against SARS-CoV-2 variants of concern.
Cell Rep
; 37(2): 109814, 2021 10 12.
Article
en En
| MEDLINE
| ID: mdl-34599871
Control of the ongoing SARS-CoV-2 pandemic is endangered by the emergence of viral variants with increased transmission efficiency, resistance to marketed therapeutic antibodies, and reduced sensitivity to vaccine-induced immunity. Here, we screen B cells from COVID-19 donors and identify P5C3, a highly potent and broadly neutralizing monoclonal antibody with picomolar neutralizing activity against all SARS-CoV-2 variants of concern (VOCs) identified to date. Structural characterization of P5C3 Fab in complex with the spike demonstrates a neutralizing activity defined by a large buried surface area, highly overlapping with the receptor-binding domain (RBD) surface necessary for ACE2 interaction. We further demonstrate that P5C3 shows complete prophylactic protection in the SARS-CoV-2-infected hamster challenge model. These results indicate that P5C3 opens exciting perspectives either as a prophylactic agent in immunocompromised individuals with poor response to vaccination or as combination therapy in SARS-CoV-2-infected individuals.
Palabras clave
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Anticuerpos ampliamente neutralizantes
/
SARS-CoV-2
/
Tratamiento Farmacológico de COVID-19
Límite:
Animals
/
Humans
Idioma:
En
Revista:
Cell Rep
Año:
2021
Tipo del documento:
Article
País de afiliación:
Suiza