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Aarhus Universitet

Aarhus University

Mogens Ryttergaard Duch

Finn Skou Pedersen

Jette Lovmand

Anders Henrik Lund

Poul Jo Slashedrgensen

Shervin Bahrami

Martin Tolstrup

Thomas Jesperson

Lars Østergaard

The invention relates to chimeric polytropic viral envelope polypeptides and uses thereof, as well as to polynucleotides encoding said chimeric polypeptides and constructs comprising said polypeptides and/or polynucleotides. The invention also relates to chimeric retroviral envelope polypeptides, polynucleotides and vectors encoding said chimeric retroviral envelope polypeptides, virus particles and cells harboring said chimeric envelope polypeptides. Said chimeric polypeptide comprise an envelope polypeptide, or fragment thereof, and a polypeptide sequence of a receptor binding region, ligand or polypeptide sequence of a ligand binding region, and optionally a linker sequence. The invention include methods of targeting receptors, methods of treatment and methods for delivery of agents using said chimeric retroviral envelope polypeptides. The invention is applicable for directed targeting and controlled fusion of virus particles with other cellular membranes.

Chimeric viral envelopes

The present invention relates to a retroviral vector which expresses a gene, e.g. for therapeutic use and/or of viral origin, under the translational control of an internal ribosomal entry site (IRES) resulting in the efficient translation of said gene.

Expression of heterologous genes from an IRES translational cassette in retroviral vectors

A retroviral vector comprising a retrovirus with infectivity for birds and/or mammals in which at least part of the genomic RNA sequences carrying information for the production of viral proteins required in trans for retroviral replication have been replaced by one or more sequences carrying information to be introduced in a target cell chromosome, characterized in that the primer binding site (PBS) has been modified to a sequence that does not allow strong base pairing with the 3' end or other priming sequence in any naturally occurring tRNA. The present application is directed to the tRNA-like primer.

Retroviral vector, a replication system for said vector and avian or

A retroviral vector comprising a retrovirus with infectivity for birds and/or mammals in which at least part of the genomic RNA sequences carrying information for the production of viral proteins required in trans for retroviral replication have been replaced by one or more sequences carrying information to be introduced in a target cell chromosome, characterized in that the primer binding site (PBS) has been modified to a sequence that does not allow strong base pairing with the 3' end or other priming sequence in any naturally occurring tRNA.

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Risskov, Denmark

Mogens Ryttergaard Duch