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Pharmaceutical significance of the cyclic imide form of recombinant human glial cell line derived neurotrophic factor.
Markell, D; Hui, J; Narhi, L; Lau, D; LeBel, C; Aparisio, D; Lile, J; Jing, S; Yui, D; Chang, B S.
Afiliación
  • Markell D; Department of Pharmaceutics and Drug Delivery, Amgen, Inc., Thousand Oaks, CA 91320, USA.
Pharm Res ; 18(9): 1361-6, 2001 Sep.
Article en En | MEDLINE | ID: mdl-11683253
PURPOSE: The purpose of this paper is to determine the significance of cyclic imide formation of an aspartic acid residue during storage on the pharmaceutical quality of a recombinant human glial cell line-derived neurotrophic factor (rhGDNF) formulation. METHODS: A combination of chromatography, peptide mapping, mass spectroscopy, and protein sequencing was used to purify and characterize the degradation product. Circular dichroism, 1,8-ANS and heparin binding, melting temperature determination, bioassays, and preclinical pharmacokinetic and toxicology testing were performed to examine its equivalence to native rhGDNF. RESULTS: The rhGDNF with cyclic imide at aspartic acid residue 96 showed identical activity, structure, pharmacokinetic profile, and toxicity profile to the native rhGDNF. CONCLUSIONS: Formation of cyclic imide at aspartic acid residue 96 does not affect the pharmaceutical quality of the rhGDNF formulation.
Asunto(s)
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Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Proteínas de Drosophila / Imidas / Factores de Crecimiento Nervioso / Proteínas del Tejido Nervioso Límite: Animals / Humans Idioma: En Revista: Pharm Res Año: 2001 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos
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Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Proteínas de Drosophila / Imidas / Factores de Crecimiento Nervioso / Proteínas del Tejido Nervioso Límite: Animals / Humans Idioma: En Revista: Pharm Res Año: 2001 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos