Data/hora: 23/06/2024 09:59:26

Biblioteca(s): | Embrapa Gado de Leite.
Data corrente: | 17/11/2022
Data da última atualização: | 01/12/2022
Autoria: | FELICIANO, G. P.; ARIMORI, S. H.; NAKAO, V. W.; SANTOS, J. R. dos; MARTINS, E. A. L.; BEMQUERER, M. P.; CHENG, M.
Afiliação: | GABRIEL PINNA FELICIANO, Instituto Butantan; SARA HAYAMA ARIMORI, Instituto Butantan; VINICIUS WATANABE NAKAO, Instituto Butantan; JOICE RODRIGUES DOS SANTOS, Instituto Butantan; ELIZABETH A. L. MARTINS, Instituto Butantan; MARCELO PORTO BEMQUERER, CNPGL; ELISABETH CHENG, Instituto Butantan.
Título: | Non-cryoprecipitation separation of coagulation FVIII and prothrombin complex proteins by pseudoaffinity calcium elution chromatography using anion exchange resin.
Ano de publicação: | 2022
Fonte/Imprenta: | Pharmaceuticals, v. 15, n. 10, 1192, 2022.
DOI: | https://doi.org/10.3390/ph15101192
Idioma: | Inglês
Conteúdo: | Hemophilia A is treated with human plasma coagulation factor VIII (FVIII) replacement therapy and Hemophilia B with coagulation factor IX, which is purified from prothrombin complex concentrate (PCC). In this paper we evaluated the separation of FVIII and PCC by directly loading raw thawed plasma to an anion exchange resin (AEX). Under this relatively high ionic strength, most of the plasma proteins such as albumin, immunoglobulins and others were not adsorbed. Five resins commonly used in protein purification (plasma fractionation) were tested. With all resins, PCC was eluted by pseudoaffinity in a calcium gradient step. Afterwards, FVIII could be recovered with a good yield and high purification factor in the salt gradient step with 400?500 mM NaCl. Using ANX Sepharose FF and Q Sepharose FF, the CaCl2 elution step was introduced after the intermediate wash with 200 mM NaCl, whereas using DEAE Sepharose FF, Fractogel EMD TMAE and Fractogel EMD DEAD, PCC eluted after the wash of the unbound proteins. Our results indicate that three important fractions: (1) albumin, immunoglobulin etc.; (2) PCC; and (3) FVIII can be separated in one chromatographic AEX column and the delicate and troublesome cryoprecipitation can be eliminated, making the purification of blood products faster and cheaper.
Palavras-Chave: | Crioprecipitação; Protrombina; Troca aniônica.
Thesagro: | Análise Química; Coagulação; Cromatografia.
Categoria do assunto: | W Química e Física
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1148380/1/Non-Cryoprecipitation-Separation-of-Coagulation.pdf
Registro original: | Embrapa Gado de Leite (CNPGL)
Exemplares: | CNPGL - (25818-1) - UPC - AP - DD -  -  -  - DIS