Particles for gene therapy

Chemistry: molecular biology and microbiology – Virus or bacteriophage – except for viral vector or...

Reexamination Certificate

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Details

C435S069100, C435S455000, C435S456000, C435S173300, C435S320100, C530S300000, C530S350000

Reexamination Certificate

active

07018826

ABSTRACT:
The present invention relates to particles, comprising: a protein envelope with a fusion protein, which comprises a virus protein, a cell permeability-mediating peptide and a heterologous cell-specific binding site; and a nucleic acid present in the protein envelope, which comprises the sequence for a virus-specific packaging signal and a structural gene. The invention further relates to methods for the preparation of such particles and means suitable for this purpose, as well as the use of the particles in gene therapy.

REFERENCES:
patent: WO 93/20221 (1993-10-01), None
patent: WO 97/24453 (1997-07-01), None
patent: WO 00/26379 (2000-05-01), None
Schodel Journal of Biotechnology 1996 vol. 44, pp. 91-96.
Dmitriev, I. et al., “An Adenovirus Vector with Genetically Modified Fibers Demonstrates Expanded Tropism via Utilization of a Coxsackievirus and Adenovirus Receptor-Independent Cell Entry Mechanism”, Journal of Virology, pp. 9706-9713, Dec. (1998).
Oess, S. et al., “Novel Cell Permeable Motif Derived from the PreS2-domain of Hepatitis-B Virus Surface Antigens”, Gene Therapy,9 pages, May (2000).
Schodel, F et al., “Hybrid Hepatitis B Virus Core Antigen as a Vaccine Carrier Moiety: I. Presentation of Foreign Epitopes”, Journal of Biotechnology, pp. 91-96, Jan. (1996).
Derossi, D. et al., “The Third Helix of the Antennapedia Homeodomain translocates through Biological Membranes.” J. Biol. Chem. 1994. 269(14): pp. 10444-10450.
Vives, E. et al., “A Truncated HIV-1 Tat Protein Basic Domain Rapidly Translocates through the Plasma Membrane and Accumulates in the Cell Nucleus.” J. Biol. Chem. 1997. 272(25): pp. 16010-16017.
Rojas, M. et al., “Genetic Engineering of Proteins with Cell Membrane Permeability.” Nat. Biotechnol. 1998. 16(4): pp. 370-375.
Elliot g., et al., “Intercellular Trafficking and Protein Delivery by a Herpesvirus Structural Protein.” Cell, 1997. 88(2): pp. 223-233.
Phelan, A. et al, “Intercellular Delivery of Functional p53 by the Herpesvirus Protein VP22.”Nat. Biotechnol. 1998. 16(5): pp. 440-443.

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