Comparison of three types of residual Chinese hamster ovary cell protein detection kits / 中国药学杂志
Chinese Pharmaceutical Journal
;
(24): 1107-1112, 2016.
Artículo
en Chino
| WPRIM
| ID: wpr-859059
ABSTRACT
OBJECTIVE:
To compare the detection ability of three types of residual Chinese hamster ovary(CHO) host cell protein (HCP) ELISA kits (Cat No. A, B, C) from one manufacturer.METHODS:
Residual CHO-HCP in the bulks of therapeutic monoclonal antibody (mcAb) produced with different strains of CHO cells, extracted proteins from CHO-K1 cultural supernatant and standards from different kits were determined with three types of kits to evaluate the CHO-HCP detection ability of different kits. Furthermore, the capture antibody coated microplates and enzyme conjugated detection antibody of three kits were re-assembled to detect standards and extracted supernatant proteins to analyze the possible reasons of differentiated detection ability.RESULTS:
For the detection of mcAb samples, the relative recoveries of kit A and B to kit C were 1.89% and 15.34%, respectively; for the detection of extracted proteins from CHO-K1 cultural supernatant, the recoveries of kit A, B, and C were 4.05%, 21.52%, and 35.98%, respectively; for the detection of self-standards, the recoveries of three kits were all within the range of (100±15)%. For the detection of standards from other kits, there was a great discrepancy among the three kits. For kit A detection, the recoveries of standard B and C were 31.28% and 7.99%; for kit B detection, the recoveries of standard A and C were 55.76% and 25.08%; for kit C detection, the recoveries of standard A and B were 266.65% and 73.31%, respectively. By analyzing the results from reassembled capture and secondary antibodies, it was inferred that the detection ability of the capture antibodies of the three kits was sequenced as A>C>B, while the detection ability of enzyme conjugated secondary antibodies was sequenced as B>C>A.CONCLUSION:
The detection abilities of three CHO-HCP ELISA kits from the investigated manufacturer were determined as C>B>A.
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Tipo de estudio:
Estudio diagnóstico
/
Guía de Práctica Clínica
Idioma:
Chino
Revista:
Chinese Pharmaceutical Journal
Año:
2016
Tipo del documento:
Artículo
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