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United States Patent 7,279,327ããç±³åœç¹èš±7,279,327
October 9, 2007ãã2007幎10æ9æ¥ïŒçºè¡æ¥ïŒ
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Filing Date: 04/19/2002ããåºé¡æ¥ïŒ2002幎4æ19æ¥
Inventors:ãçºæè ïŒ
Curtis, Kristopher M. (Chapel Hill, NC, US)
Yount, Boyd (Hillsborough, NC, US)
Baric, Ralph S. (Haw River, NC, US)
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Assignee: The University of North Carolina at Chapel Hill (Chapel Hill, NC)
è²å人ïŒããŒã¹ã«ãã©ã€ã倧åŠãã£ãã«ãã«æ ¡ïŒããŒã¹ã«ãã©ã€ãå·ãã£ãã«ãã«ïŒ
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Government Interestsãããæ¿åºã®å©ç
STATEMENT OF FEDERAL SUPPORTãããé£éŠæ¯æŽå£°æ
This invention was made possible with government support under grant numbers AI23946 and GM63228 from the National Institutes of Health. The United States government has certain rights to this invention.
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Title:
Methods for producing recombinant coronavirus
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AbstractïŒæŠèŠ
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1.æææ§ã®è€è£œæ¬ æã³ãããŠã€ã«ã¹ç²åãç£çããããã®ãã«ããŒçްèã§ãã£ãŠãåèšçްèã¯ã以äžãå«ãã³ãããŠã€ã«ã¹èš±å®¹çްèã§ããïŒïŒaïŒã³ãããŠã€ã«ã¹ããã±ãŒãžã³ã°ã·ã°ãã«ãå«ãã³ãããŠã€ã«ã¹ã¬ããªã³ã³RNAãããã³ç°çš®RNAé åã§ãã£ãŠãåèšã¬ããªã³ã³RNAããã«ãå°ãªããšã1ã€ã®ã³ãããŠã€ã«ã¹æ§é ã¿ã³ãã¯è³ªãã³ãŒãããé åãæ¬ ããŠããã ïŒïœïŒã¬ããªã³ã³ïŒ²ïŒ®ïŒ¡ã«ã¯ååšããªãå°ãªããšãïŒã€ã®æ§é ã¿ã³ãã¯è³ªãã³ãŒãããå°ãªããšãïŒã€ã®å¥åã®ãã«ããŒïŒ²ïŒ®ïŒ¡ãåèšãã«ããŒïŒ²ïŒ®ïŒ¡ã¯ã³ãããŠã€ã«ã¹ããã±ãŒãžã³ã°ã·ã°ãã«ãæ¬ ããŠãããããã§ãã¬ããªã³ã³ïŒ²ïŒ®ïŒ¡ãšãã«ããŒïŒ²ïŒ®ïŒ¡ã®çµã¿åãããçºçŸã¯ãåèšç°çš®ïŒ²ïŒ®ïŒ¡é åãå«ã¿ã现èã«ææããããšãã§ããè€è£œã«æ¬ é¥ããããçµã¿ç«ãŠãããã³ãããŠã€ã«ã¹ç²åãçæããã
2 åèšã¬ããªã³ã³ïŒ²ïŒ®ïŒ¡ã¯ãã³ããããã¹æ§é ã¿ã³ãã¯è³ªã®å°ãªããšãïŒã€ãã³ãŒãããé åãããã«å«ããè«æ±é ïŒã«èšèŒã®ãã«ããŒçްèã
3 åèšãã«ããŒïŒ²ïŒ®ïŒ¡ãããïŒããããã³ïŒ³éºäŒåãããªã矀ããéžæãããæ§é ã¿ã³ãã¯è³ªãã³ãŒãããå°ãªããšãïŒã€ã®éºäŒåãå«ããè«æ±é ïŒã«èšèŒã®ãã«ããŒçްèã
4 åèšãã«ããŒïŒ²ïŒ®ïŒ¡ãéºäŒåãå«ããè«æ±é ïŒã«èšèŒã®ãã«ããŒçްèã
5 åèšã³ãããŠã€ã«ã¹ããããåŒåžã³ãããŠã€ã«ã¹ãããŠã¹èçãŠã€ã«ã¹ããã¿äŒææ§èè žçãŠã€ã«ã¹ããã¿åŒåžã³ãããŠã€ã«ã¹ãã€ãã³ãããŠã€ã«ã¹ããã³è žã³ãããŠã€ã«ã¹ããã³æææ§è ¹èçãŠã€ã«ã¹ããŠãµã®ãããªã矀ããéžæããããè«æ±é ïŒã«èšèŒã®ãã«ããŒçްèãã³ãããŠã€ã«ã¹ãããŠã¹èçãŠã€ã«ã¹ãåŸæ¶²è ºæ¶è ºçãŠã€ã«ã¹ããã¿è¡çåéæ§è³çãŠã€ã«ã¹ããŠã·ã³ãããŠã€ã«ã¹ãé³¥é¡æææ§æ°ç®¡æ¯çãŠã€ã«ã¹ãããã³ãã«ããŒã³ãããŠã€ã«ã¹ã
6 åèšã³ãããŠã€ã«ã¹ãäŒææ§èè žçãŠã€ã«ã¹ã§ãããè«æ±é ïŒã«èšèŒã®ãã«ããŒçްèã
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ãè«æ±é ïŒãåèšãã«ããŒïŒ²ïŒ®ïŒ¡ãããã¢ãŒã¿ãŒãå«ããè«æ±é ïŒã«èšèŒã®ãã«ããŒçްèã
9åèšã¬ããªã³ã³ïŒ²ïŒ®ïŒ¡ãããã¢ãŒã¿ãŒãå«ããè«æ±é ïŒã«èšèŒã®ãã«ããŒçްèã
10åèšç°çš®ïŒ²ïŒ®ïŒ¡ãããã³ãŒãããã¿ã³ãã¯è³ªããã³ïŒ²ïŒ®ïŒ¡ãã³ãŒããããããããããªã矀ããéžæããããè«æ±é ïŒã«èšèŒã®ãã«ããŒçްèã
11åèšãã«ããŒïŒ²ïŒ®ïŒ¡ãã³ãŒãããç°çš®ïŒ€ïŒ®ïŒ¡ãããã«å«ããè«æ±é ïŒã«èšèŒã®ãã«ããŒçްèã
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13æææ§ã®è€è£œæ¬ æã³ãããŠã€ã«ã¹ç²åãäœè£œããæ¹æ³ã§ãã£ãŠã以äžãå«ãæ¹æ³ãåèšãã«ããŒçްèã«ãããŠåèšã³ãããŠã€ã«ã¹ç²åãç£çããããšïŒæ¬¡ã«ãåèšãã«ããŒçްèããåèšã³ãããŠã€ã«ã¹ç²åãåéããã
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Descriptionã説æ
FIELD OF THE INVENTIONãçºæã®åé
The present invention relates to methods of producing recombinant nidovirus vectors, particularly coronavirus vectors, and expressing heterologous genes from said vectors.
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BACKGROUND OF THE INVENTIONããçºæã®èæ¯
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Hence, improved vaccines are needed.
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ãããŠã©ããæ¬¡ã®éšåãSUMMARY OF THE INVENTIONãã
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Example nidoviruses that may be used to carry out the present invention include members of the familes Coronaviridae and Arteriviridae. Currently preferred are the coronaviruses.
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"Coronavirus" as used herein refers to a genus in the family Coronaviridae, which family is in turn classified within the order Nidovirales. The coronaviruses are large, enveloped, positive-stranded RNA viruses. They have the largest genomes of all RNA viruses and replicate by a unique mechanism which results in a high frequency of recombination. The coronaviruses include antigenic groups I, II, and III. While the present invention is described primarily with respect to porcine transmissible gastroenteritis virus (TGEV), the invention may be carried out with any coronavirus, such as human respiratory coronavirus, porcine respiratory coronavirus, canine coronavirus, feline enteric coronavirus, feline infectious peritonitis virus, rabbit coronavirus, murine hepatitis virus, sialodacryoadenitis virus, porcine hemagglutinating encephalomyelitis virus, bovine coronavirus, avian infectious bronchitis virus, and turkey coronavirus. See generally M. Lai and K. Holmes, Coronaviridae: The Viruses and Their Replication, in Fields Virology, (4.sup.th Ed. 2001).
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