Characterizing Silicone Oil-Induced Protein Aggregation with Stimulated Raman Scattering Imaging.
Mol Pharm
; 20(8): 4268-4276, 2023 08 07.
Article
em En
| MEDLINE
| ID: mdl-37382286
ABSTRACT
Particles in biopharmaceutical products present high risks due to their detrimental impacts on product quality and safety. Identification and quantification of particles in drug products are important to understand particle formation mechanisms, which can help develop control strategies for particle formation during the formulation development and manufacturing process. However, existing analytical techniques such as microflow imaging and light obscuration measurement lack the sensitivity and resolution to detect particles with sizes smaller than 2 µm. More importantly, these techniques are not able to provide chemical information to determine particle composition. In this work, we overcome these challenges by applying the stimulated Raman scattering (SRS) microscopy technique to monitor the C-H Raman stretching modes of the proteinaceous particles and silicone oil droplets formed in the prefilled syringe barrel. By comparing the relative signal intensity and spectral features of each component, most particles can be classified as protein-silicone oil aggregates. We further show that morphological features are poor indicators of particle composition. Our method has the capability to quantify aggregation in protein therapeutics with chemical and spatial information in a label-free manner, potentially allowing high throughput screening or investigation of aggregation mechanisms.
Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Óleos de Silicone
/
Agregados Proteicos
Idioma:
En
Ano de publicação:
2023
Tipo de documento:
Article