Influence of culture conditions on recombinant Drosophila melanogaster S2 cells producing rabies virus glycoprotein cultivated in serum-free medium

Autor(es)

Batista, Fabiana R. X. ^[1] ; Moraes, Angela M. ^[1] ; Buentemeyer, Heino ^[2] ; Noll, Thomas ^[2]

Afiliação do(s) autor(es)

^[1] Univ Estadual Campinas, Dept Biotechnol Proc, Sch Chem Engn, BR-13083852 Campinas, SP - Brazil

^[2] Univ Bielefeld, Inst Cell Culture Technol, D-33615 Bielefeld - Germany

• Tipo de documento: Artigo Científico
• Fonte: BIOLOGICALS; v. 37, n. 2, p. 108-118, APR 2009.
• Citações Web of Science: 10

Resumo

The recombinant G glycoprotein from the surface of the rabies virus (RVGP) is a promising candidate as a rabies vaccine component and also for diagnostic purposes. In this study, RVGP production by transfected Drosophila melanogaster S2 cells cultivated in a serum-free medium (Supplemented IPL-41 medium) was carried out. The effects of pH and pO(2) were evaluated in batch culture in parallel spinner flasks. The use of a pH equal to 6.3 and a pO(2) of 40% air saturation resulted in the highest RVGP content. These conditions were also used in fed-batch mode, yielding a RVGP content level of 98 g/10(7) cells. The main nutrients consumed were glucose, glutamine, asparagine, serine and proline and the major metabolites produced were alanine and ammonia, according to the metabolism studies performed. Since RVGP is a transmembrane protein, two different methods for protein recovery were assessed and compared. Detergent-based cell disruption showed to be more effective than mechanical disruption with glass beads for glycoprotein recovery. (C) 2008 The International Association for Biologicals. Published by Elsevier Ltd. All rights reserved. (AU)

• Processo FAPESP: 02/09482-3 - Expressão de genes heterólogos em células de dípteros: biologia molecular e engenharia de processos
• Beneficiário: Carlos Augusto Pereira
• Modalidade de apoio: Auxílio à Pesquisa - Temático