Here we describe the development of a baculovirus vector expression cassette containing rearranged baculovirus-derived genetic regulatory elements. This newly designed expression cassette conferred significant production improvements to the baculovirus expression vector system (BEVS), including prolonged cell integrity after infection, improved protein integrity, and around 4-fold increase in r...

The baculovirus Autographa californica multiple nucleopolyhedrosis virus causes non-productive infection in mammalian cells. Recombinant baculovirus therefore has the capability to transfer and express heterologous genes in these cells if a mammalian promoter governs the gene of interest. We have investigated the possibility of using baculovirus as a tool to produce recombinant adeno-associated...

A new rapid method for titrating baculovirus stocks has been developed using a novel cell line Sf-9 Easy Titer (Sf-9ET). The Sf-9ET cell line has been transfected with plasmid DNA containing the enhanced green fluorescent protein (eGFP) gene under the control of the baculovirus polyhedrin promoter. When used in the titration assay, the Sf-9ET cells turn green when they are infected with baculov...

Gene therapy in the liver requires powerful vectors capable of mediating sufficient gene delivery and expression in affected hepatocytes. Viral vectors are amongst the most efficient tools for gene delivery, and the search for tissue-specific infecting viruses is important for the development of in v i v o gene therapy strategies. We have recently shown for the first time that a genetically mod...

Baculoviruses are commonly used for recombinant protein and vaccine production. Baculoviruses are nonpathogenic to vertebrates, have a large packaging capacity, display broad host and cell type tropism, infect both dividing and nondividing cells, and do not elicit strong immune or allergic responses in vivo. Hence, their use as gene delivery vehicles has become increasingly popular in recent ye...

Baculoviruses are DNA viruses that can naturally control insects and form the basis for a range of biological insecticides. These occluded in crystalline protein matrix, occlusion body (OB), which favors their persistence environment until consumed by susceptible insect. This review presents evidence baculoviruses perfectly adapted to persist soil. In support this assertion, detailed is present...

Baculovirus expression vectors are widely used for expressing heterologous proteins in cultured insect cells. Recent advances include further development of the system for production of multi-subunit protein complexes, co-expression of protein-modifying enzymes to improve heterologous protein production, and additional applications of baculovirus display technology. The application of modified ...

Herein, we report that Autographa californica nucleopolyhedrovirus, a member of the Baculoviridae family, is capable of stimulating antiviral activity in mammalian cells. Baculoviruses are not pathogenic to mammalian cells. Nevertheless, live baculovirus is shown here to induce interferons (IFN) from murine and human cell lines and induces in vivo protection of mice from encephalomyocarditis vi...

A recombinant baculovirus expressing the hemagglutinin gene of the influenza virus, A/PR/8/34 (H1N1), under the control of the chicken beta-actin promoter, was constructed. To determine the induction of protective immunity in vivo, mice were inoculated with the recombinant baculovirus by intramuscular, intradermal, i.p., and intranasal routes and then were challenged with a lethal dose of the i...

Makkonen and his colleagues published an article in the Journal of Virology entitled “6-Oand N-Sulfated Syndecan-1 Promotes Baculovirus Binding and Entry into Mammalian Cells” (1). Some parts of the data and conclusions seem misleading and not fully justified. Heparan sulfate (HS) alone can bind baculovirus to cells during entry and transduction. Syndecan-1 (SDC-1) contains a protein core and H...