Multimeric ACE2-IgM fusions as broadly active antivirals that potently neutralize SARS-CoV-2 variants.
Commun Biol
; 5(1): 1237, 2022 11 12.
Article
en En
| MEDLINE
| ID: mdl-36371561
ABSTRACT
Coronavirus infections are a world-wide threat to human health. A promising strategy to develop a broadly active antiviral is the use of fusion proteins consisting of an antibody IgG Fc region and a human ACE2 domain to which the viral spike proteins bind. Here we create antiviral fusion proteins based on IgM scaffolds. The hexameric ACE2-IgM-Fc fusions can be efficiently produced in mammalian cells and they neutralize the infectious virus with picomolar affinity thus surpassing monomeric ACE2-IgM-Fc by up to 96-fold in potency. In addition, the ACE2-IgM fusion shows increased neutralization efficiency for the highly infectious SARS-CoV-2 omicron variant in comparison to prototypic SARS-CoV-2. Taken together, these multimeric IgM fusions proteins are a powerful weapon to fight coronavirus infections.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
SARS-CoV-2
/
Tratamiento Farmacológico de COVID-19
Límite:
Animals
/
Humans
Idioma:
En
Revista:
Commun Biol
Año:
2022
Tipo del documento:
Article
País de afiliación:
Alemania