Gene transfer vector, recombinant adenovirus particles containing the same, method for producing the same and method of use of the same

• US 5,981,225 A
• Filed: 04/16/1998
• Issued: 11/09/1999
• Est. Priority Date: 04/16/1998
• Status: Expired due to Term

• Current Assignee: Baylor College of Medicine (Baylor College)
• Original Assignee: Baylor College of Medicine (Baylor College)
• Inventors: Kochanek, Stefan, Schiedner, Gudrun
• Primary Examiner(s): Brusca, John S.
• Application Number:
  US09/060,828
• Time in Patent Office: 572 Days
• Field of Search: 435/69.1, 435/456, 435/457, 435/320.1, 536/23.5, 536/23.72, 536/24.1
• US Class Current: 435/69.1
• CPC Class Codes: C12N 15/86 Viral vectors
• CPC Class Codes: C12N 2710/10343 viral genome or elements thereof as genetic vector

Abstract

A gene transfer vector comprising adenovirus inverted terminal repeats, at least one adenovirus packaging signal, and an adenoviral VAI gene and/or VAII gene; recombinant adenovirus particles containing the same; a method for producing the same and a method of use of the same to introduce and express a foreign gene in adenovirus target cells, is disclosed.

Claims

1. A gene transfer vector consisting essentially of, in 5'"'"' to 3'"'"' orientation, the following elements:

(i) a first adenovirus inverted terminal repeat,

(ii) an adenoviral VAI gene and/or VAII gene,

(iii) a gene foreign to adenovirus, wherein said gene is operably linked to a promoter functional in adenovirus target cells, and

(iv) a second adenovirus inverted terminal repeat,

wherein the order of elements (ii) and (iii) may be reversed; and

wherein one or both of element (i) and element (iv) additionally comprise an adenovirus packaging signal, and wherein said vector is incapable of producing, in vitro, recombinant adenovirus virus particles which have encapsidated therein said vector unless said vector is co-transfected or co-infected into adenovirus host cells with adenovirus genomic DNA or adenovirus particles containing adenovirus genomic DNA, respectively.

2. The vector of claim 1, wherein both element (i) and element (iv) additionally comprise an adenovirus packaging signal.

3. The vector of claim 1, wherein said vector additionally comprises a gene encoding a marker.

4. The vector of claim 1, wherein said vector additionally comprises a matrix associated region.

5. The vector of claim 1, wherein said vector is a circular plasmid, and said first adenovirus inverted terminal repeat is ligated to said second adenovirus inverted terminal repeat to form said circular plasmid.

6. The vector of claim 5, wherein a unique restriction site is present between said first adenovirus inverted terminal repeat and said second adenovirus inverted terminal repeat.

7. The vector of claim 1, wherein said vector is a linearized plasmid.

8. The vector of claim 1, wherein said foreign gene encodes for a protein selected from the group consisting of dystrophin, coagulation factor VII, cystic fibrosis transmembrane regulator protein, ornithine transcarbamylase, α

1-antitrypsin, Rb, and p53.

9. A recombinant adenovirus virus particle which has encapsidated therein a gene transfer vector consisting essentially of, in 5'"'"' to 3'"'"' orientation, the following elements:

(i) a first adenovirus inverted terminal repeat,

(ii) an adenoviral VAI gene and/or VAII gene,

(iii) a gene foreign to adenovirus, wherein said gene is operably linked to a promoter functional in adenovirus target cells, and

(iv) a second adenovirus inverted terminal repeat,

wherein the order of elements (ii) and (iii) may be reversed; and

wherein one or both of element (i) and element (iv) additionally comprise an adenovirus packaging signal, and wherein said vector is incapable of producing, in vitro, recombinant adenovirus virus particles which have encapsidated therein said vector unless said vector is co-transfected or co-infected into adenovirus host cells with adenovirus genomic DNA or adenovirus particles containing adenovirus genomic DNA, respectively.

10. The recombinant adenovirus virus particle of claim 9, wherein both element (i) and element (iv) additionally comprise an adenovirus packaging signal.

11. The recombinant adenovirus virus particle of claim 9, wherein said vector additionally comprises a gene encoding a marker.

12. The recombinant adenovirus virus particle of claim 9, wherein said vector additionally comprises a matrix associated region.

13. The recombinant adenovirus virus particle of claim 9, wherein said vector is a circular plasmid, and said first adenovirus inverted terminal repeat is ligated to said second adenovirus inverted terminal repeat to form said circular plasmid.

14. The recombinant adenovirus virus particle of claim 13, wherein a unique restriction site is present between said first adenovirus inverted terminal repeat and said second adenovirus inverted terminal repeat.

15. The recombinant adenovirus virus particle of claim 9, wherein said vector is a linearized plasmid.

16. The recombinant adenovirus virus particle of claim 9, wherein said foreign gene encodes for a protein selected from the group consisting of dystrophin, coagulation factor VII, cystic fibrosis transmembrane regulator protein, ornithine transcarbamylase, α

1-antitrypsin, Rb, and p53.

17. A method for the production of recombinant adenovirus particles comprising the steps of:

(1) co-transfecting or co-infecting adenovirus host cells with

(A) adenovirus genomic DNA or adenovirus particles containing adenovirus genomic DNA, respectively, wherein said genomic DNA encodes a defective adenovirus VAI gene and/or VAII gene, and

(B) a gene transfer vector consisting essentially of, in 5'"'"' to 3'"'"' orientation, the following elements;

(i) a first adenovirus inverted terminal repeat,

(ii) an adenoviral VAI gene and/or VAII gene,

(iii) a gene foreign to adenovirus, wherein said gene is operably linked to a promoter functional in adenovirus target cells, and

(iv) a second adenovirus inverted terminal repeat,

wherein the order of elements (ii) and (iii) may be reversed; and

wherein one or both of element (i) and element (iv) additionally comprise an adenovirus packaging signal, and wherein said vector is incapable of producing, in vitro, recombinant adenovirus virus particles which have encapsidated therein said vector unless said vector is co-transfected or co-infected into adenovirus host cells with adenovirus genomic DNA or adenovirus particles containing adenovirus genomic DNA, respectively;

(2) harvesting adenovirus particles produced by the resulting host cells; and

(3) separating, by CsCl centrifugation, adenovirus particles which have encapsidated therein said adenovirus genomic DNA from recombinant adenovirus particles which have encapsidated therein said gene transfer vector.

18. The method of claim 17, wherein said adenovirus genomic DNA has an E1A^- phenotype.

19. The method of claim 18, wherein said adenovirus genomic DNA also has at least one of an E1B^- phenotype, an E2A^- phenotype, an E3^- phenotype, and an E4^- phenotype.

20. The method of claim 17, wherein said adenovirus genomic DNA has a defective packaging signal.

21. The method of claim 17, wherein said adenovirus host cells express adenovirus E1 proteins.

22. The method of claim 17, wherein both element (i) and element (iii) additionally comprise an adenovirus packaging signal.

23. The method of claim 17, wherein said vector additionally comprises a gene encoding a marker.

24. The method of claim 17, wherein said vector additionally comprises a matrix associated region.

25. The method of claim 17, wherein said vector is a circular plasmid, and said first adenovirus inverted terminal repeat is ligated to said second adenovirus inverted terminal repeat to form said circular plasmid.

26. The method of claim 25, wherein a unique restriction site is present between said first adenovirus inverted terminal repeat and said second adenovirus inverted terminal repeat.

27. The method of claim 26, wherein said vector is a linearized plasmid.

28. The method of claim 17, wherein said foreign gene encodes for a protein selected from the group consisting of dystrophin, coagulation factor VII, cystic fibrosis transmembrane regulator protein, ornithine transcarbamylase, α

1-antitrypsin, Rb, and p53.

29. A method for introducing and expressing a foreign gene in adenovirus target cells comprising infecting said adenovirus target cells with a recombinant adenovirus particle which has encapsidated therein a gene transfer vector consisting essentially of, in 5'"'"' to 3'"'"' orientation, the following elements:

(i) a first adenovirus inverted terminal repeat,

(ii) an adenoviral VAI gene and/or VAII gene,

(iii) a gene foreign to adenovirus, wherein said gene is operably linked to a promoter functional in adenovirus target cells, and

(iv) a second adenovirus inverted terminal repeat,

wherein the order of elements (ii) and (iii) may be reversed; and

wherein one or both of element (i) and element (iv) additionally comprise an adenovirus packaging signal, and wherein said vector is incapable of producing, in vitro, recombinant adenovirus virus particles which have encapsidated therein said vector unless said vector is co-transfected or co-infected into adenovirus host cells with adenovirus genomic DNA or adenovirus particles containing adenovirus genomic DNA, respectively.

30. The method of claim 29, wherein both element (i) and element (iii) additionally comprise an adenovirus packaging signal.

31. The method of claim 29, wherein said vector additionally comprises a gene encoding a marker.

32. The method of claim 29, wherein said vector additionally comprises a matrix associated region.

33. The method of claim 29, wherein said vector is a circular plasmid, and said first adenovirus inverted terminal repeat is ligated to said second adenovirus inverted terminal repeat to form said circular plasmid.

34. The method of claim 33, wherein a unique restriction site is present between said first adenovirus inverted terminal repeat and said second adenovirus inverted terminal repeat.

35. The method of claim 29, wherein said vector is a linearized plasmid.

36. The method of claim 29, wherein said foreign gene encodes for a protein selected from the group consisting of dystrophin, coagulation factor VII, cystic fibrosis transmembrane regulator protein, ornithine transcarbamylase, α

1-antitrypsin, Rb, and p53.