Obtaining and characterization of monoclonal antibodies against recombinant extracellular domain of human epidermal growth factor receptor 2.
Hum Antibodies
; 26(2): 103-111, 2018 Feb 05.
Article
en En
| MEDLINE
| ID: mdl-29036807
ABSTRACT
Human epidermal growth factor receptor 2 (HER2) is an important biomarker for detection and treatment of different types of cancers such as breast, ovarian, stomach cancer. In this study, we developed a monoclonal antibody against the extracellular domain (ECD) of HER2 biomarker of breast cancer. For this purpose, the ECD-HER2 gene was amplified and cloned into an expression vector. Gene was generated in Escherichia coli BL21 (DE3) strain for expression of recombinant protein. The expressed protein was separated by SDS-PAGE and detected by anti-his monoclonal antibody in immunoblotting. Hybridoma cells were obtained by fusing myeloma cells with mouse spleen cells injected with recombinant ECD-HER2 and screened by ELISA for the production of monoclonal antibody. The results indicate that out of three candidate hybridoma cells one clone (1E7) was producing the highest titer and antibody specificity was envisioned in ELISA results. In vivo scaling up culture of hybridoma cells in BALB/C mice lead to significant increase in the monoclonal antibody concentration up to 16 mg/ml. Immunochemical methods demonstrated the specificity of developed antibody against ECD-HER2 protein.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Proteínas Recombinantes de Fusión
/
Biomarcadores de Tumor
/
Receptor ErbB-2
/
Antineoplásicos Inmunológicos
/
Anticuerpos Monoclonales
Tipo de estudio:
Prognostic_studies
Idioma:
En
Revista:
Hum Antibodies
Asunto de la revista:
ALERGIA E IMUNOLOGIA
Año:
2018
Tipo del documento:
Article