Patents Assigned to Avigen, Inc.
  • Patent number: 6376237
    Abstract: The present invention provides methods and compositions for producing high titer, wild-type-free preparations of recombinant AAV (“rAAV”) virions. The compositions of the present invention include novel nucleic acids encoding AAV helper functions and AAV helper function vectors. The present invention also includes host cells transfected by the claimed nucleic acids, methods of using the claimed vectors, and rAAV virions produced by such methods.
    Type: Grant
    Filed: November 29, 1999
    Date of Patent: April 23, 2002
    Assignee: Avigen, Inc.
    Inventor: Peter Colosi
  • Patent number: 6365403
    Abstract: The present invention provides methods and compositions for producing high titer preparations of recombinant AAV (“rAAV”) virions. The compositions of the present invention include AAV helper function systems and host cells. The present invention also includes methods of using AAV helper function vectors that effect the production of only small amounts of the long forms of Rep protein, and rAAV virions produced by such methods.
    Type: Grant
    Filed: November 29, 1999
    Date of Patent: April 2, 2002
    Assignee: Avigen, Inc.
    Inventors: Georges Natsoulis, Gary Kurtzman, Peter Colosi
  • Patent number: 6335011
    Abstract: The use of recombinant adeno-associated virus (AAV) virions for delivery of DNA molecules to muscle cells and tissue is disclosed. The invention allows for the direct, in vivo injection of recombinant AAV virions into muscle tissue, e.g., by intramuscular injection, as well as for the in vitro transduction of muscle cells which can subsequently be introduced into a subject for treatment. The invention provides for sustained, high-level expression of the delivered gene and for in vivo secretion of the therapeutic protein from transduced muscle cells such that systemic delivery is achieved.
    Type: Grant
    Filed: September 28, 1999
    Date of Patent: January 1, 2002
    Assignees: Avigen, Inc., Johns Hopkins University
    Inventors: Gregory M. Podsakoff, Paul D. Kessler, Barry J. Byrne, Gary J. Kurtzman
  • Patent number: 6325998
    Abstract: The use of recombinant adeno-associated virus (AAV) virions for delivery of DNA molecules to muscle cells and tissue in the treatment of anemia is disclosed. The invention allows for the direct, in vivo injection of recombinant AAV virions into muscle tissue, e.g., by intramuscular injection, as well as for the in vitro transduction of muscle cells which can subsequently be introduced into a subject for treatment. The invention provides for sustained, high-level expression of a delivered nucleotide sequence encoding erythropoietin, and for in vivo secretion thereof from transduced muscle cells such that systemic delivery is achieved.
    Type: Grant
    Filed: December 4, 1998
    Date of Patent: December 4, 2001
    Assignees: Avigen, Inc., Johns Hopkins University
    Inventors: Gregory M. Podsakoff, Gary J. Kurtzman
  • Patent number: 6309634
    Abstract: Methods of delivering viral vectors, particularly recombinant AAV virions, to the CNS are provided. Also provided are methods of treating Parkinson's Disease.
    Type: Grant
    Filed: June 26, 1999
    Date of Patent: October 30, 2001
    Assignees: Avigen, Inc., The Regents of the University of California
    Inventors: Krys Bankiewicz, Janet Cunningham
  • Patent number: 6242426
    Abstract: The present invention relates generally to immunization methods using recombinant viral vectors. In particular, the invention relates to methods and compositions for immunizing a subject with a nucleic acid molecule encoding an antigen of interest, wherein the nucleic acid molecule is delivered to the subject via a recombinant AAV virion.
    Type: Grant
    Filed: July 23, 1998
    Date of Patent: June 5, 2001
    Assignee: Avigen, Inc.
    Inventors: Gary J. Kurtzman, Edgar G. Engelman, Greg M. Podsakoff, Dirk G. Brockstedt
  • Publication number: 20010001661
    Abstract: The use of recombinant adeno-associated virus (AAV) virions for delivery of DNA molecules to muscle cells and tissue is disclosed. The invention allows for the direct, in vivo injection of recombinant AAV virions into muscle tissue, e.g., by intramuscular injection, as well as for the in vitro transduction of muscle cells which can subsequently be introduced into a subject for treatment. The invention provides for sustained, high-level expression of the delivered gene and for in vivo secretion of the therapeutic protein from transduced muscle cells such that systemic delivery is achieved.
    Type: Application
    Filed: January 4, 2001
    Publication date: May 24, 2001
    Applicant: Avigen, Inc.
    Inventors: Gregory M. Podsakoff, Paul D. Kessler, Barry J. Byrne, Gary J. Kurtzman
  • Patent number: 6221349
    Abstract: The present invention provides improved viral vectors useful for the expression of genes at high levels in human cells. In particular, the present invention provides adeno-associated vectors (AAV) suitable for gene therapy. These vectors are capable of delivering nucleic acid containing constructs which result in the production of full-length therapeutic levels of biologically active Factor VIII in the recipient individual in vivo. The present invention also provides pharmaceutical compositions comprising such AAV vectors, as well as methods for making and using these constructs.
    Type: Grant
    Filed: July 30, 1999
    Date of Patent: April 24, 2001
    Assignee: Avigen, Inc.
    Inventors: Linda B. Couto, Peter C. Colosi, Xiaobing Qian
  • Patent number: 6218180
    Abstract: The use of recombinant adeno-associated virus (AAV) virions for the treatment of solid tumors is disclosed. The invention provides for the use of recombinant AAV virions to deliver an AAV vector containing a drug-susceptibility gene and a second gene capable of providing an ancillary effect to solid tumor cells. The second gene can be used to enhance the immunogenicity of the transduced tumor cell. Alternatively, the second gene can be used to provide a tumorstatic effect. The invention also provides for the use of recombinant AAV virions to deliver an interferon gene, or a tumor suppressor gene to provide a therapeutic effect in a transduced tumor cell.
    Type: Grant
    Filed: March 10, 1999
    Date of Patent: April 17, 2001
    Assignee: Avigen, Inc.
    Inventors: Gary J. Kurtzman, Peter C. Colosi, Jun Yoshida, Masaaki Mizuno, Hideho Okada
  • Patent number: 6211163
    Abstract: The use of recombinant adeno-associated virus (AAV) virions for delivery of DNA molecules to muscle cells and tissue is disclosed. The invention allows for the direct, in vivo injection of recombinant AAV virions into muscle tissue, e.g., by intramuscular injection, as well as for the in vitro transduction of muscle cells which can subsequently be introduced into a subject for treatment. The invention provides for sustained, high-level expression of the delivered gene and for in vivo secretion of the therapeutic protein from transduced muscle cells such that systemic delivery is achieved.
    Type: Grant
    Filed: May 10, 1999
    Date of Patent: April 3, 2001
    Assignee: Avigen, Inc.
    Inventors: Gregory M. Podsakoff, Paul D. Kessler, Barry J. Byrne, Gary J. Kurtzman
  • Patent number: 6207457
    Abstract: A novel targeted nucleotide sequence delivery and integration system is provided. The integration system employs nucleic acid constructs having a targeting sequence capable of binding AAV Rep and a heterologous nucleotide sequence arranged relative to the targeting sequence such that the targeting sequence is capable of directing the integration of the heterologous sequence into a target site in a recipient genome. The system further employs Rep expression products which provide integration functions effective to mediate the site-specific integration of the targeting sequence and the heterologous sequence into the recipient genome. Methods are described, whereby the nucleotide sequence integration system can deliver and efficiently integrate large nucleotide sequences into target sites in recipient cell genomes. Therapeutic methods are also provided, wherein the integration systems are used to insert various therapeutically relevant nucleotide sequences into selected cells from a subject.
    Type: Grant
    Filed: September 8, 1995
    Date of Patent: March 27, 2001
    Assignee: Avigen, Inc.
    Inventors: Georges Natsoulis, Richard T. Surosky
  • Patent number: 6200560
    Abstract: The present invention provides improved viral vectors useful for the expression of genes at high levels in human cells. In particular, the present invention provides recombinant adeno-associated vectors (AAV) suitable for gene therapy. These vectors are capable of delivering nucleic acid containing constructs which result in the production of full-length therapeutic levels of biologically active Factor VIII in the recipient individual in vivo. The present invention also provides pharmaceutical compositions comprising such AAV vectors, as well as methods for making and using these constructs.
    Type: Grant
    Filed: December 22, 1999
    Date of Patent: March 13, 2001
    Assignee: Avigen, Inc.
    Inventors: Linda B. Couto, Peter C. Colosi, Xiaobing Qian
  • Patent number: 6027931
    Abstract: The present invention provides methods and compositions for producing high titer preparations of recombinant AAV ("rAAV") virions. The compositions of the present invention include AAV helper function systems and host cells. The present invention also includes methods of using AAV helper function vectors that effect the production of only small amounts of the long forms of Rep protein, and rAAV virions produced by such methods.
    Type: Grant
    Filed: June 30, 1998
    Date of Patent: February 22, 2000
    Assignee: Avigen, Inc.
    Inventors: George Natsoulis, Peter Colosi, Gary Kurtzman
  • Patent number: 6004797
    Abstract: Accessory functions capable of supporting efficient recombinant AAV (rAAV) virion production in a suitable host cell are provided. The accessory functions are in the form of one or more vectors that are capable of being transferred between cells. Methods of producing rAAV virions are also provided. The methods can be practiced to produce commercially significant levels of rAAV particles without also generating significant levels of infectious helper virus or other contaminating by-products.
    Type: Grant
    Filed: November 7, 1996
    Date of Patent: December 21, 1999
    Assignee: Avigen, Inc.
    Inventor: Peter C. Colosi
  • Patent number: 6001650
    Abstract: The present invention provides methods and compositions for producing high titer, wild-type-free preparations of recombinant AAV ("rAAV") virions. The compositons of the present invention include novel nucleic acids encoding AAV helper functions and AAV helper function vectors. The present invention also includes host cells transfected by the claimed nucleic acids, methods of using the claimed vectors, and rAAV virions produced by such methods.
    Type: Grant
    Filed: August 28, 1998
    Date of Patent: December 14, 1999
    Assignee: Avigen, Inc.
    Inventor: Peter Colosi
  • Patent number: 5962313
    Abstract: The use of recombinant adeno-associated virus (AAV) virions for delivery of DNA molecules to muscle cells and tissue is disclosed. The invention allows for the direct, in vivo injection of recombinant AAV virions into muscle tissue, e.g., by intramuscular injection, as well as for the in vitro transduction of muscle cells which can subsequently be introduced into a subject for treatment. The invention provides for sustained, high-level expression of the delivered gene and for in vivo secretion of the therapeutic protein from transduced muscle cells such that systemic delivery is achieved.
    Type: Grant
    Filed: January 16, 1997
    Date of Patent: October 5, 1999
    Assignees: Avigen, Inc., Johns Hopkins University
    Inventors: Gregory M. Podsakoff, Paul D. Kessler, Barry J. Byrne, Gary J. Kurtzman
  • Patent number: 5952221
    Abstract: The use of recombinant adeno-associated virus (AAV) virions for the treatment of solid tumors is disclosed. The invention provides for the use of recombinant AAV virions to deliver an AAV vector containing a drug-susceptibility gene and a second gene capable of providing an ancillary effect to solid tumor cells. The second gene can be used to enhance the immunogenicity of the transduced tumor cell. Alternatively, the second gene can be used to provide a tumorstatic effect. The invention also provides for the use of recombinant AAV virions to deliver an interferon gene, or a tumor suppressor gene to provide a therapeutic effect in a transduced tumor cell.
    Type: Grant
    Filed: March 5, 1997
    Date of Patent: September 14, 1999
    Assignee: Avigen, Inc.
    Inventors: Gary J. Kurtzman, Peter C. Colosi, Jun Yoshida, Masaaki Mizuno, Hideho Okada
  • Patent number: 5945335
    Abstract: Composition and methods are provided for producing recombinant AAV ("rAAV") in the absence of helper virus, such as adenovirus. The compositions provide the accessory functions necessary for supporting rAAV virion production in host cells. In certain embodiments, the accessory functions are provided by vectors comprising nucleotide sequences from an adenoviral E4 region which lack the putatively oncogenic E4 ORF 6 coding region. The present invention also includes host cells transfected by the claimed accessory function vectors, methods of using such vectors, and rAAV virions produced by such methods.
    Type: Grant
    Filed: July 16, 1998
    Date of Patent: August 31, 1999
    Assignee: Avigen, Inc.
    Inventor: Peter Colosi
  • Patent number: 5858351
    Abstract: The use of recombinant adeno-associated virus (AAV) virions for delivery of DNA molecules to muscle cells and tissue is disclosed. The invention allows for the direct, in vivo injection of recombinant AAV virions into muscle tissue, e.g., by intramuscular injection, as well as for the in vitro transduction of muscle cells which can subsequently be introduced into a subject for treatment. The invention provides for sustained, high-level expression of the delivered gene and for in vivo secretion of the therapeutic protein from transduced muscle cells such that systemic delivery is achieved.
    Type: Grant
    Filed: January 18, 1996
    Date of Patent: January 12, 1999
    Assignees: Avigen, Inc., Johns Hopkins University
    Inventors: Gregory M. Podsakoff, Paul D. Kessler, Barry J. Byrne, Gary J. Kurtzman
  • Patent number: 5846528
    Abstract: The use of recombinant adeno-associated virus (AAV) virions for delivery of DNA molecules to muscle cells and tissue in the treatment of anemia is disclosed. The invention allows for the direct, in vivo injection of recombinant AAV virions into muscle tissue, e.g., by intramuscular injection, as well as for the in vitro transduction of muscle cells which can subsequently be introduced into a subject for treatment. The invention provides for sustained, high-level expression of a delivered nucleotide sequence encoding erythropoietin, and for in vivo secretion thereof from transduced muscle cells such that systemic delivery is achieved.
    Type: Grant
    Filed: January 16, 1997
    Date of Patent: December 8, 1998
    Assignees: Avigen, Inc., Johns Hopkins University
    Inventors: Gregory M. Podsakoff, Gary J. Kurtzman