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Title:
ADENOVIRUS VECTOR IN WHICH VA-RNAs ARE NOT EXPRESSED
Document Type and Number:
WIPO Patent Application WO/2012/121071
Kind Code:
A1
Abstract:
The present invention provides a very safe Ad vector exhibiting a gene transfer efficiency equivalent to or greater than that of conventional Ad vectors; i.e., an Ad vector capable of being effectively and safely used in gene therapy and life sciences research. Further provided are Ad-vector-producing/-amplifying cells capable of amplifying the Ad vector. According to this Ad vector, a VA-RNA gene (VA-RNA I and/or VA-RNA II) is modified in the Ad vector genome so that the VA-RNAs are not expressed. In Ad-vector-producing/-amplifying cells, a gene is introduced so that the VA-RNAs of the Ad genome are expressed in cells constitutively expressing an E1 gene product used to amplify the Ad vector.

Inventors:
MIZUGUCHI HIROYUKI (JP)
KATAYAMA KAZUFUMI (JP)
Application Number:
PCT/JP2012/055027
Publication Date:
September 13, 2012
Filing Date:
February 29, 2012
Export Citation:
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Assignee:
UNIV OSAKA (JP)
MIZUGUCHI HIROYUKI (JP)
KATAYAMA KAZUFUMI (JP)
International Classes:
C12N15/09; C12N1/15; C12N1/19; C12N1/21; C12N5/10
Foreign References:
JP2002513582A2002-05-14
JP2005526099A2005-09-02
Other References:
YAMAGUCHI T. ET AL.: "Induction of type I interferon by adenovirus-encoded small RNAs.", PROC. NATL. ACAD. SCI. USA, vol. 107, no. 40, 2010, pages 17286 - 17291
CASCALLO M. ET AL.: "Ras-dependent oncolysis with an adenovirus VAI mutant.", CANCER RES., vol. 63, no. 17, 2003, pages 5544 - 5550
CASCALLO M. ET AL.: "Deletion of VAI and VAII RNA genes in the design of oncolytic adenoviruses.", HUM. GENE THER., vol. 17, no. 9, 2006, pages 929 - 940
WANG Y. ET AL.: "Virus-associated RNA I-deleted adenovirus, a potential oncolytic agent targeting EBV-associated tumors.", CANCER RES., vol. 65, no. 4, 2005, pages 1523 - 1531
MACHITANI M. ET AL.: "Development of an adenovirus vector lacking the expression of virus-associated RNAs.", J. CONTROL. RELEASE, vol. 154, no. 3, 16 June 2011 (2011-06-16), pages 285 - 289
MITSUHIRO MACHITANI ET AL.: "Virus-associated RNA (VA-RNA) Kesson Adenovirus Vector no Kaihatsu to Kino Hyoka", ABSTRACTS OF ANNUAL MEETING OF PHARMACEUTICAL SOCIETY OF JAPAN, vol. 131, no. 4, 5 March 2011 (2011-03-05), pages 160
MITSUHIRO MACHITANI ET AL.: "Adenovirus Yurai Shobunshi RNA (VA-RNA) no Kino Kaiseki ni Muketa Shinki Vector no Kaihatsu", ANTISENSE IDENSHI DELIVERY SYMPOSIUM 2011 YOSHISHU, vol. 21, 1 September 2011 (2011-09-01), pages 132
Attorney, Agent or Firm:
SHOJI, Takashi et al. (JP)
Takashi Shoji (JP)
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Claims: