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US7604960: Transient protein expression methods

Filing Information

Inventor(s)	Guus Hateboer · Menzo J. E. Havenga · Ronald Vogels · Lennart Holterman ·
Assignee(s)	Crucell Holland B.V. · View assignee updates
Attorney/Agent(s)	TraskBritt ·
Primary Examiner	Stacy B Chen ·
Application Number	US11809697
Filing date	06/01/2007
Issue date	10/20/2009
Prior Publication Data	US20080113409 - 05/15/2008
Predicted expiration date	05/23/2020
Patent term adjustment	39
U.S. Classifications	435/691 · 424/233.1 · 435/455 · 435/320.1 ·
International Classifications	C12N1500 · C12N15861 · C12P2106 ·
Kind Code	B2
Related U.S. Application Data	CROSS-REFERENCE TO RELATED APPLICATIONS This application is a continuation-in-part of U.S. patent application Ser. No. 11/592,409, filed Nov. 3, 2006 now U.S. Pat. No. 7,470,523, the contents of the entirety of which is incorporated by this reference, which is a divisional of U.S. patent application Ser. No. 10/234,007, filed Sep. 3, 2002, now U.S. Pat. No. 7,132,280, issued Nov. 7, 2006, the contents of the entirety of which, including its sequence listing, is incorporated by this reference, which is a divisional of U.S. patent application Ser. No. 09/549,463, filed Apr. 14, 2000, now U.S. Pat. No. 6,855,544, issued Feb. 15, 2005, the entire contents of which, including its sequence listing, is incorporated by this reference, which application claims priority under 35 U.S.C. Section 119(e) to Provisional Patent Application Ser. No. 60/129,452 filed Apr. 15, 1999.

Abstract

Described is a method for producing a protein of interest, the method comprising: a) providing a recombinant adenoviral vector comprising nucleic acid encoding the protein of interest under control of a promoter, wherein the adenoviral vector has deletions in a first region and in a second region of the adenovirus genome, wherein each of the first region and the second region is required for adenoviral genome replication and/or adenovirus particle formation, b) propagating the adenoviral vector in a first type of complementing cells that express proteins from the first and from the second region of the adenovirus genome so as to complement the deletions of the recombinant adenoviral vector, to obtain recombinant adenovirus particles, c) infecting a culture of a second type of complementing cells with the recombinant adenovirus particles, wherein the second type of complementing cells express protein from the first region of the adenovirus genome but not protein from the second region of the adenovirus genome, to produce the protein of interest, and d) harvesting the protein of interest.

Independent Claims | See all claims (20)

1. A method for producing a protein of interest, the method comprising: a) providing a recombinant adenoviral vector comprising nucleic acid encoding the protein of interest under control of a promoter, wherein said recombinant adenoviral vector has deletions in the E1 and the E2A regions of the adenovirus genome, b) propagating said recombinant adenoviral vector in complementing cells that express adenoviral E1 protein and adenoviral E2A protein, to obtain recombinant adenovirus particles, c) infecting a culture of complementing cells that express adenoviral E1 protein, but not adenoviral E2A protein, with said recombinant adenovirus particles, to produce the protein of interest, and d) harvesting the protein of interest.
16. A method of producing a protein of interest, the method comprising: providing a recombinant adenoviral vector comprising nucleic acid encoding the protein of interest under control of a promoter, wherein said recombinant adenoviral vector has deletions in a first region and in a second region of the adenovirus genome, wherein each of said first second regions is required for adenoviral genome replication and/or adenovirus particle formation; propagating said recombinant adenoviral vector in a first type of complementing cells that expresses proteins from said first and from said second regions of the adenovirus genome so as to complement the deletions of the recombinant adenoviral vector, to obtain recombinant adenovirus particles, infecting a culture of a second type of complementing cells with said recombinant adenovirus particles, wherein said second type of complementing cells express protein from said first region of the adenovirus genome, but not protein from said second region of the adenovirus genome, to produce the protein of interest; and harvesting the protein of interest.
17. A method for producing a protein of interest, the method comprising: infecting a culture of complementing cells with a recombinant adenoviral particle that has a genome comprising nucleic acid encoding the protein of interest under control of a promoter to produce the protein of interest, wherein said genome has deletions in a first region and in a second region, and each of the first and second regions is required for adenoviral genome replication and/or adenovirus particle formation, and wherein said complementing cells express protein from said first region of the genome of the adenoviral particle, but not protein from said second region of the genome of adenoviral particle, and harvesting the protein of interest.
19. A method for producing a protein of interest, the method comprising: infecting a culture of complementing cells with a recombinant adenoviral particle that has a genome comprising nucleic acid encoding the protein of interest under control of a promoter to produce the protein of interest, wherein said genome has deletions in a first region and in a second region, and each of the first and second regions is required for adenoviral genome replication and/or adenovirus particle formation, and wherein said complementing cells express protein from said first region of the genome of the adenoviral particle, but not protein from said second region of the genome of adenoviral particle, and harvesting the protein of interest, wherein said first region is El and wherein said second region is E2A.

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