Abstract: Gene delivery vectors, such as, for example, recombinant FIV vectors, and methods of using such vectors are provided for use in treating or preventing retinal diseases of the eye and diseases of the brain associated with lysosomal storage disorders.

Abstract: Methods of production and purification for viruses and virus-derived vectors, including those related to alphaviruses, are disclosed. In one aspect, methods of purification that subject alphavirus replicon particle preparations to one or more steps of chromatographic purification, such as using an ion exchange resin, are provided. Also disclosed are methods of characterizing alphavirus replicon particles and utilizing these materials for vaccines and gene-based therapeutics.

Abstract: Gene delivery vectors, for example, recombinant FIV vectors, and methods of using such vectors are provided for use in treating or preventing retinal diseases of the eye and diseases of the brain associated with lysosomal storage disorders.

Abstract: Isolated nucleic acid molecules are disclosed, comprising an alphavirus nonstructural protein gene which, when operably incorporated into a recombinant alphavirus particle, eukaryotic layered vector initiation system, or RNA vector replicon, has a reduced level of vector-specific RNA synthesis, as compared to wild-type, and the same or greater level of proteins encoded by RNA transcribed from the viral junction region promoter, as compared to a wild-type recombinant alphavirus particle. Also disclosed are RNA vector replicons, alphavirus vector constructs, and eukaryotic layered vector initiation systems which contain the above-identified nucleic acid molecules.

Abstract: Isolated nucleic acid molecules are disclosed, comprising an alphavirus nonstructural protein gene which, when operably incorporated into a recombinant alphavirus particle, eukaryotic layered vector initiation system, or RNA vector replicon, has a reduced level of vector-specific RNA synthesis, as compared to wild-type, and the same or greater level of proteins encoded by RNA transcribed from the viral junction region promoter, as compared to a wild-type recombinant alphavirus particle. Also disclosed are RNA vector replicons, alphavirus vector constructs, and eukaryotic layered vector initiation systems which contain the above-identified nucleic acid molecules.

Abstract: Isolated nucleic acid molecules are disclosed, comprising an alphavirus nonstructural protein gene which, when operably incorporated into a recombinant alphavirus particle, eukaryotic layered vector initiation system, or RNA vector replicon, has a reduced level of vector-specific RNA synthesis, as compared to wild-type, and the same or greater level of proteins encoded by RNA transcribed from the viral junction region promoter, as compared to a wild-type recombinant alphavirus particle. Also disclosed are RNA vector replicons, alphavirus vector constructs, and eukaryotic layered vector initiation systems which contain the above-identified nucleic acid molecules.

Abstract: Isolated nucleic acid molecules are disclosed. comprising an alphavirus nonstructural protein gene which, when operably incorporated into a recombinant alphavirus particle, eukaryotic layered vector initiation system, or RNA vector replicon, has a reduced level of vector-specific RNA synthesis, as compared to wild-type, and the same or greater level of proteins encoded by RNA transcribed from the viral junction region promoter, as compared to a wild-type recombinant alphavirus particle. Also disclosed are RNA vector replicons, alphavirus vector constructs, and eukaryotic layered vector initiation systems which contain the above-identified nucleic acid molecules.

Abstract: Isolated nucleic acid molecules are disclosed, comprising an alphavirus nonstructural protein gene which, when operably incorporated into a recombinant alphavirus particle, eukaryotic layered vector initiation system, or RNA vector replicon, has a reduced level of vector-specific RNA synthesis, as compared to wild-type, and the same or greater level of proteins encoded by RNA transcribed from the viral junction region promoter, as is compared to a wild-type recombinant alphavirus particle. Also disclosed are RNA vector replicons, alphavirus vector constructs, and eukaryotic layered vector initiation systems which contain the above-identified nucleic acid molecules.

Abstract: Disclosed are recombinant alphavirus particles comprising a) an alphavirus vector construct which directs the expression of a heterologous nucleic acid molecule; b) a capsid protein; and c) an envelope glycoprotein from a virus different from said alphavirus vector.

Abstract: The present invention provides compositions and methods for utilizing recombinant alphavirus vectors. Also disclosed are compositions and methods for making and utilizing eukaryotic layered vector initiation systems.

Abstract: Nucleic acid molecule are provided comprising a nucleic acid sequence which encodes, in order, an alphavirus capsid, a signal peptide, and an alphavirus E1 or E2 glycoprotein. Also provided are vectors encoding such nucleic acid molecules, and use of such vectors or expression cassettes to generate recombinant alphavirus particles and alphavirus packaging cell lines. In addition, modified alphavirus vector constructs are provided that permit reduced transgene expression during vector packaging, as well as methods of using such vector constructs for the production of alphavirus vector particles.

Abstract: Nucleic acid molecule are provided comprising a nucleic acid sequence which encodes, in order, an alphavirus capsid, a signal peptide, and an alphavirus E1 or E2 glycoprotein. Also provided are vectors encoding such nucleic acid molecules, and use of such vectors or expression cassettes to generate recombinant alphavirus particles and alphavirus packaging cell lines. In addition, modified alphavirus vector constructs are provided that permit reduced transgene expression during vector packaging, as well as methods of using such vector constructs for the production of alphavirus vector particles.

Abstract: The present invention provides compositions and methods for utilizing recombinant alphavirus vectors. Also disclosed are compositions and methods for making and utilizing eukaryotic layered vector initiation systems.

Abstract: The present invention provides compositions and methods for utilizing recombinant alphavirus vectors. Also disclosed are compositions and methods for making and utilizing eukaryotic layered vector initiation systems.

Abstract: The present invention provides compositions and method,, for utilizing recombinant alphavirus vectors.

Abstract: The present invention provides compositions and methods for utilizing recombinant alphavirus vectors. Also disclosed are compositions and methods for making and utilizing eukaryotic layered vector initiation systems.

Abstract: The present invention provides compositions and methods for utilizing recombinant alphavirus vectors. Also disclosed are compositions and methods for making and utilizing eukaryotic layered vector initiation systems.

Abstract: Lamboid bacteriophage capable of specifically interacting with and delivering nucleic acid molecules to eukaryotic cells are disclosed. Such bacteriophage-derived gene transfer systems target one or more specific receptors on eukaryotic cells, for instance by incorporating mutant tail fiber proteins or by incorporating known ligands for specific eukaryotic receptors into lambda phage. Also disclosed are methods for identifying and producing modified bacteriophage tail fiber polypeptides capable of specifically interacting with eukaryotic transmembrane proteins. Methods of treating diseases using such gene transfer systems are also disclosed.