Circular nucleic acid vectors, and methods for making and...

Chemistry: molecular biology and microbiology – Vector – per se

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C435S069100, C435S252330, C435S235100

Reexamination Certificate

active

07897380

ABSTRACT:
Circular nucleic acid vectors that provide for persistently high levels of protein expression are provided. The circular vectors of the subject invention are characterized by being devoid of expression-silencing bacterial sequences, where in many embodiments the subject vectors include a unidirectional site-specific recombination product hybrid sequence in addition to an expression cassette. Also provided are methods of using the subject vectors for introduction of a nucleic acid, e.g., an expression cassette, into a target cell, as well as preparations for use in practicing such methods. The subject methods and compositions find use in a variety of different applications, including both research and therapeutic applications. Also provided is a highly efficient and readily scalable method for producing the vectors employed in the subject methods, as well as reagents and kits/systems for practicing the same.

REFERENCES:
patent: 5922687 (1999-07-01), Mann et al.
patent: 5985847 (1999-11-01), Carson et al.
patent: 6143530 (2000-11-01), Crouzet et al.
patent: 6492164 (2002-12-01), Crouzet et al.
patent: 6514757 (2003-02-01), Ball et al.
patent: 6562800 (2003-05-01), McMillan
patent: 6632672 (2003-10-01), Calos
patent: 6696278 (2004-02-01), Carstens
patent: 2003/0032092 (2003-02-01), Blanche et al.
patent: 2006/0211117 (2006-09-01), Bigger et al.
patent: 2211427 (1996-08-01), None
patent: 2358263 (2002-10-01), None
patent: 1035208 (2000-09-01), None
patent: 0815214 (2007-07-01), None
patent: 94/09127 (1994-04-01), None
patent: 02/083889 (2002-10-01), None
Yu et al. J. Bacter. 1993; 175:1239-49.
Bigger et al. J. Biol. Chem. 2001; 23018-27.
Darquet et al. Gene Therapy. 1999; 6:209-18.
Fletcher et al. J. Bact. 1995; 177:4508-13.
Jordi et al. J. Biol. Chem. 2000; 275: 21123-28.
Schnetz et al. Nuc. Acids Res. 1996; 24:2422-28.
Groth et al., PNAS, 2000, vol. 97, No. 11, pp. 5995-6000.
Wolff et al “Direct Gene Transfer into Mouse Muscle In Vivo”Science, Mar. 1990 247:1465-1468.
Hickman et al. “Gene Expression Following Direct Injection of DNA into Liver”Human Gene Therapy5:1477-1483 Dec. 1994.
Ascadi et al. “Direct Gene Transfer and Expression into Rat Heart In Vivo”New Biol. (Jan. 1991) 3:71*81.
Nakai et al. “Extrachromosomal Recombinant Adeno-Associated Virus Vector Genomes Are Primarily Responsible for Stable Liver Transduction In Vivo”Journal of Virology, Aug. 2001., p. 6969-6976.
Nakai et al. “Adeno-Associated Viral Vector-Mediated Gene Transfer of Human Blood Coagulation Factor IX into Mouse Liver”Blood, vol. 91. No. 12 (Jun. 15, 1998). pp. 4600-4607.
Yant et al. “Somatic Integration and Long-Term Transgene Expression in Normal and Haemophilic Mice Using a DNA Transposon System”Nature Genetics, vol. 25 May 2000 pp. 35-41.
Miao et al. “Inclusion of the Hepatic Locus Control Region, an Intron, and Untranslated Region Increases and Stabilizes Hepatic Factor IX Gene Expression in Vivo but Not in Vitro”Molecular Therapy, vol. 1, No. 6 Jun. 2000 pp. 522-532.
Nakai et al. “Persistant hF.IX Expression in Mouse Hepatocytes From Episomal rAAV Circular Intermediates does not rely on the presence of AAV-*ITR but the Structure of Expression Cassette Itself”BloodNov. 16, 2000 vol. 96. No. 11 Part 1, pp. 431A print. Accession No. 2001:314005 BIOSOS.
Chen et al., “Minicircle DNA Vectors Devoid of Bacterial DNA Result in Persistent and High-Level Transgene Expresssion in Vivo”, Molecular Therapy, 2003, vol. 8, No. 3, pp. 495-500.
Chen, Zhi-Ying; et al., “Improved Production and Purification of Minicircle DNA Vector Free of Plasmid Bacteria Sequences and Capable of Persistent Transgene Expression in Vivo”, Human Gene Therapy, Jan. 2005, vol. 16, No. 1, pp. 126-131, XP002431639, ISSN: 1043-0342.
Chen, ZY; et al., “Silencing of episomal transgene expression by plasmid bacterial DNA elements in vivo”, Gene Therapy, May 2004, vol. 11, No. 10, pp. 856-864, XP-002431640, ISSN: 0969-7128.
“Supplementary Partial European Search Report”, European Patent Office, May 21, 2007, PCT/US0327294.
Thorpe, Helena M.; et al., “In vitro site-specific integration of bacteriophage DNA catalyzed by a recombinase of the resolvase/invertase family”, PNAS, May 1998, 95:5505-5510.
Miao; et al., “Long-Term and Therapeutic-Level Hepatic Gene Expression of Human Factor IX after Naked Plasmid Transfer in Vivo”, Molecular Therapy (2001), 3(6):947-957.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Circular nucleic acid vectors, and methods for making and... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Circular nucleic acid vectors, and methods for making and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Circular nucleic acid vectors, and methods for making and... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2687090

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.