INVESTIGADORES
MIRANDA Maria Victoria
artículos
Título:
Production of biologically active feline interferon beta in insect larvae using a recombinant baculovirus
Autor/es:
ARREGUI, MARIANA BERNADETT; MC CALLUM, GREGORIO JUAN; SMITH, IGNACIO; VILLAVERDE, MARCELA SOLANGE; WOLMAN, FEDERICO JAVIER; TARGOVNIK, ALEXANDRA MARISA; MIRANDA, MARÍA VICTORIA
Revista:
3 Biotech
Editorial:
Springer Berlin Heidelberg
Referencias:
Año: 2018 vol. 8 p. 1 - 1
ISSN:
2190-572X
Resumen:
Feline interferon beta is a cytokine that belongs to the type I IFN family, with antitumor, antiviral and immunomodulatory functions. In this work, recombinant feline interferon beta (rFeIFNβ) was expressed in insect larvae that constitute important agronomic plagues. rFeIFNβ accumulated in the hemolymph of Spodoptera frugiperda larvae infected with recombinant baculovirus and was purified by Blue-Sepharose chromatography directly from larval homogenates on day 4 post-infection. rFeIFNβ was recovered after purification with a specific activity of 1 × 106 IU mg−1. By this method, we obtained 8.9 × 104 IU of purified rFeIFNβ per larva. The product was biologically active in vitro, with an antiviral activity of 9.5 × 104 IU mL−1, as well as a potent antitumor activity comparable to that of the commercial FeIFNω. The glycosylation of rFeIFNβ was confirmed by peptide-N-glycosidase F digestion. Our findings provide a cost-effective latform for large-scale rFeIFNβ production in laboratory research or veterinary medicine applications.