Choice of the adequate quantification method for recombinant human GM-CSF produced in different host systems

Three enzyme-linked-immunosorbent assays (ELISA) were developed and compared with a bioassay to quantify the recombinant human granulocyte-macrophage colony stimulating factor (rhGM-CSF). These assays were suitable to quantify the non-glycosylated rhGM-CSF present in mixtures with variable protein c...

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Autores principales: Bollati Fogolín,Mariela, Eberhardt,Marcos Oggero, Kratje,Ricardo, Etcheverrigaray,Marina
Lenguaje:English
Publicado: Pontificia Universidad Católica de Valparaíso 2002
Acceso en línea:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582002000300008
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Sumario:Three enzyme-linked-immunosorbent assays (ELISA) were developed and compared with a bioassay to quantify the recombinant human granulocyte-macrophage colony stimulating factor (rhGM-CSF). These assays were suitable to quantify the non-glycosylated rhGM-CSF present in mixtures with variable protein content, and therefore useful for determining concentrations of the cytokine in production processes. Among these assays, the competitive ELISA, developed with a MAb that recognises an epitope not involved in glycosylation, was the only one suitable to quantify the glycosylated form of rhGM-CSF produced in mammalian cell cultures.