Patents Assigned to Avigen, Inc.
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Patent number: 6376237Abstract: 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: GrantFiled: November 29, 1999Date of Patent: April 23, 2002Assignee: Avigen, Inc.Inventor: Peter Colosi
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Patent number: 6365403Abstract: 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: GrantFiled: November 29, 1999Date of Patent: April 2, 2002Assignee: Avigen, Inc.Inventors: Georges Natsoulis, Gary Kurtzman, Peter Colosi
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Patent number: 6335011Abstract: 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: GrantFiled: September 28, 1999Date of Patent: January 1, 2002Assignees: Avigen, Inc., Johns Hopkins UniversityInventors: Gregory M. Podsakoff, Paul D. Kessler, Barry J. Byrne, Gary J. Kurtzman
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Patent number: 6325998Abstract: 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: GrantFiled: December 4, 1998Date of Patent: December 4, 2001Assignees: Avigen, Inc., Johns Hopkins UniversityInventors: Gregory M. Podsakoff, Gary J. Kurtzman
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Patent number: 6309634Abstract: Methods of delivering viral vectors, particularly recombinant AAV virions, to the CNS are provided. Also provided are methods of treating Parkinson's Disease.Type: GrantFiled: June 26, 1999Date of Patent: October 30, 2001Assignees: Avigen, Inc., The Regents of the University of CaliforniaInventors: Krys Bankiewicz, Janet Cunningham
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Patent number: 6242426Abstract: 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: GrantFiled: July 23, 1998Date of Patent: June 5, 2001Assignee: Avigen, Inc.Inventors: Gary J. Kurtzman, Edgar G. Engelman, Greg M. Podsakoff, Dirk G. Brockstedt
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Publication number: 20010001661Abstract: 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: ApplicationFiled: January 4, 2001Publication date: May 24, 2001Applicant: Avigen, Inc.Inventors: Gregory M. Podsakoff, Paul D. Kessler, Barry J. Byrne, Gary J. Kurtzman
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Patent number: 6221349Abstract: 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: GrantFiled: July 30, 1999Date of Patent: April 24, 2001Assignee: Avigen, Inc.Inventors: Linda B. Couto, Peter C. Colosi, Xiaobing Qian
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Patent number: 6218180Abstract: 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: GrantFiled: March 10, 1999Date of Patent: April 17, 2001Assignee: Avigen, Inc.Inventors: Gary J. Kurtzman, Peter C. Colosi, Jun Yoshida, Masaaki Mizuno, Hideho Okada
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Patent number: 6211163Abstract: 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: GrantFiled: May 10, 1999Date of Patent: April 3, 2001Assignee: Avigen, Inc.Inventors: Gregory M. Podsakoff, Paul D. Kessler, Barry J. Byrne, Gary J. Kurtzman
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Patent number: 6207457Abstract: 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: GrantFiled: September 8, 1995Date of Patent: March 27, 2001Assignee: Avigen, Inc.Inventors: Georges Natsoulis, Richard T. Surosky
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Patent number: 6200560Abstract: 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: GrantFiled: December 22, 1999Date of Patent: March 13, 2001Assignee: Avigen, Inc.Inventors: Linda B. Couto, Peter C. Colosi, Xiaobing Qian
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Patent number: 6027931Abstract: 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: GrantFiled: June 30, 1998Date of Patent: February 22, 2000Assignee: Avigen, Inc.Inventors: George Natsoulis, Peter Colosi, Gary Kurtzman
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Patent number: 6004797Abstract: 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: GrantFiled: November 7, 1996Date of Patent: December 21, 1999Assignee: Avigen, Inc.Inventor: Peter C. Colosi
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Patent number: 6001650Abstract: 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: GrantFiled: August 28, 1998Date of Patent: December 14, 1999Assignee: Avigen, Inc.Inventor: Peter Colosi
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Patent number: 5962313Abstract: 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: GrantFiled: January 16, 1997Date of Patent: October 5, 1999Assignees: Avigen, Inc., Johns Hopkins UniversityInventors: Gregory M. Podsakoff, Paul D. Kessler, Barry J. Byrne, Gary J. Kurtzman
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Patent number: 5952221Abstract: 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: GrantFiled: March 5, 1997Date of Patent: September 14, 1999Assignee: Avigen, Inc.Inventors: Gary J. Kurtzman, Peter C. Colosi, Jun Yoshida, Masaaki Mizuno, Hideho Okada
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Patent number: 5945335Abstract: 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: GrantFiled: July 16, 1998Date of Patent: August 31, 1999Assignee: Avigen, Inc.Inventor: Peter Colosi
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Patent number: 5858351Abstract: 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: GrantFiled: January 18, 1996Date of Patent: January 12, 1999Assignees: Avigen, Inc., Johns Hopkins UniversityInventors: Gregory M. Podsakoff, Paul D. Kessler, Barry J. Byrne, Gary J. Kurtzman
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Patent number: 5846528Abstract: 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: GrantFiled: January 16, 1997Date of Patent: December 8, 1998Assignees: Avigen, Inc., Johns Hopkins UniversityInventors: Gregory M. Podsakoff, Gary J. Kurtzman