Assessment of methods for determination of glycan composition of erythropoietin.
| Autor: | Cowper B; National Institute for Biological Standards and Control (NIBSC), Blanche Lane, South Mimms, Potters Bar, EN6 3QG, United Kingdom., Burns C; National Institute for Biological Standards and Control (NIBSC), Blanche Lane, South Mimms, Potters Bar, EN6 3QG, United Kingdom., Bristow AF; National Institute for Biological Standards and Control (NIBSC), Blanche Lane, South Mimms, Potters Bar, EN6 3QG, United Kingdom., Letallec D; European Directorate for the Quality of Medicines & Healthcare (EDQM), Department of Biological Standardisation, OMCL Network & HealthCare (DBO), Council of Europe, Strasbourg, France., Costanzo A; European Directorate for the Quality of Medicines & Healthcare (EDQM), Department of Biological Standardisation, OMCL Network & HealthCare (DBO), Council of Europe, Strasbourg, France. |
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| Jazyk: | angličtina |
| Zdroj: | Pharmeuropa bio & scientific notes [Pharmeur Bio Sci Notes] 2019; Vol. 2019, pp. 34-53. |
| Abstrakt: | Erythropoietin (EPO) is a monomeric, highly glycosylated, protein hormone (molecular size around 30-35 kD), produced mainly in adult kidneys, which acts principally on red blood cell progenitors and precursors to promote red cell production. Therapeutic EPO products are widely used biotherapeutics. They are mainly produced by recombinant DNA technology in mammalian cells and their biological activity is closely linked to the degree of N -glycan sialylation. Determination of the sialic acids' content and complexity by glycan mapping therefore appears critical to ensure the quality and efficacy of the EPO therapeutic products. The European Directorate for the Quality of Medicines & HealthCare organised a study (BSP144) under the aegis of the Biological Standardisation Programme to assess N -glycan mapping tests with the aim of incorporating a standard method into the European Pharmacopoeia monograph 'Erythropoietin concentrated solution' (1316). The use of a 'reagent panel' consisting of six EPO preparations with a range of iso-electric properties facilitated comparison between laboratories and methodologies. Based on the study results, a robust and repeatable HPAEC-PAD chromatographic method was identified and work to introduce it in the monograph as an example method has been initiated. (© Council of Europe 2019.) |
| Databáze: | MEDLINE |
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