The Impact of the Metal Interface on the Stability and Quality of a Therapeutic Fusion Protein.
Mol Pharm
; 17(2): 569-578, 2020 02 03.
Article
en En
| MEDLINE
| ID: mdl-31917583
Subvisible particle formation, which occurs after the sterile filtration step of the fill/finish process, is a challenge that may occur during the development of biotherapeutics with complex molecular structures. Here, we show that a stainless steel pump head from a rotary piston pump produces more protein aggregates, past the limit of the acceptable quality range for subvisible particle counts, in comparison to a ceramic pump head. The quartz crystal microbalance was used to quantify the primary layer, proteins irreversibly adsorbed at the solid-liquid interface, and the secondary diffuse gel-like layer interacting on top of the primary layer. The results showed that the mass of protein irreversibly adsorbed onto stainless steel sensors is greater than on an aluminum oxide surface (ceramic pump mimic). This suggests that the amount of adsorbed protein plays a role in surface-induced protein aggregation at the solid-liquid interface.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Acero Inoxidable
/
Inmunoglobulina G
/
Fragmentos Fc de Inmunoglobulinas
/
Factor de Necrosis Tumoral alfa
/
Composición de Medicamentos
/
Anticuerpos Monoclonales Humanizados
Idioma:
En
Revista:
Mol Pharm
Asunto de la revista:
BIOLOGIA MOLECULAR
/
FARMACIA
/
FARMACOLOGIA
Año:
2020
Tipo del documento:
Article
País de afiliación:
Estados Unidos
Pais de publicación:
Estados Unidos