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Vol 5, No 3 (2002)
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Choice of the adequate quantification method for recombinant human GM-CSF produced in different host systems | Bollati Fogolín | Electronic Journal of Biotechnology
doi: 10.2225/vol5-issue3-fulltext-6
Electronic Journal of Biotechnology, Vol 5, No 3 (2002)

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

Mariela Bollati Fogolín, Marcos Oggero Eberhardt, Ricardo Kratje, Marina Etcheverrigaray



Abstract

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.




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ISSN:  0717-3458

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