Claims
- 1. A method for removing empty adeno-associated virus (AAV) capsids from a mixture of AAV virions comprising empty and packaged AAV capsids, said method comprising:
heating said mixture to a temperature of between 40° C. and 70° C. and; adjusting the pH value of said mixture to a pH between 4 and 7.
- 2. The method of claim 1, wherein said method produces a stock of rAAV virions substantially free of empty AAV capsids.
- 3. The method of claim 1, wherein said method produces a stock of rAAV wherein at least 75% of the AAV virions present in the stock are packaged AAV capsids.
- 4. The method of claim 1, wherein said method produces a stock of rAAV wherein at least 85% of the AAV virions present in the stock are packaged AAV capsids.
- 5. The method of claim 1, wherein said method produces a stock of rAAV wherein at least 90% of the AAV virions present in the stock are packaged AAV capsids.
- 6. The method of claim 1, wherein said mixture is heated between 45° C. and 65° C.
- 7. The method of claim 6, wherein said mixture is heated to about 60° C.
- 8. The method of claim 1, wherein said mixture is heated for at least 5 minutes.
- 9. The method of claim 6, wherein said mixture is heated for at least 5 minutes.
- 10. The method of claim 7, wherein said mixture is heated for at least 5 minutes.
- 11. The method of claim 1, wherein the pH value of said mixture is between 4.0 and 5.5.
- 12. The method of claim 8, wherein the pH value of said mixture is about 5.0.
- 13. The method of claim 1, wherein said method further comprises adding a chemical destabilizing agent to said mixture.
- 14. The method of claim 13, wherein said chemical destabilizing agent is sodium dodecyl sulfate.
- 15. The method of claim 14, wherein said sodium dodecyl sulfate is present in said mixture at a concentration of between 1% and 2%.
- 16. The method of claim 13, wherein said chemical destabilizing agent is urea.
- 17. The method of claim 16, wherein said urea is present in said mixture at a concentration of between 3 molar and 8 molar.
- 18. The method of claim 17, wherein said urea is present in said mixture at a concentration of between 4 molar and 5 molar.
- 19. The method of claim 18, wherein said urea is present in said mixture at a concentration of about 4 molar.
- 20. The method of claim 1, wherein heating and adjusting the pH is done substantially concurrently.
- 21. The method of claim 1, wherein the mixture is heated prior to adjusting the pH value.
- 22. The method of claim 1, wherein the pH is adjusted prior to heating said mixture.
- 23. The method of claim 1, wherein said mixture is from a cell lysate obtained from cells rendered capable of producing AAV virions.
- 24. The method of claim 23, wherein said mixture is obtained from a chromatographic column elution of the cell lysate.
- 25. A method for removing empty adeno-associated virus (AAV) capsids from a mixture of AAV virions comprising empty and packaged AAV capsids, said method comprising:
heating said mixture for about 5-10 minutes to a temperature of between about 55° C. and about 65° C; adjusting the pH value of said mixture to a pH between about 4.0 and 5.5; and adding one or more chemical destabilizing agents to said mixture.
- 26. The method of claim 25, wherein said one or more chemical destabilizing agents is sodium dodecyl sulfate, present in said mixture at a concentration of between 1% and 2%.
- 27. The method of claim 25, wherein said one or more chemical destabilizing agents is urea, present in said mixture at a concentration of between 3 molar and 8 molar.
- 28. The method of claim 27, wherein said urea is present in said mixture at a concentration of between 4 molar and 5 molar.
- 29. The method of claim 28, wherein said urea is present in said mixture at a concentration of about 4 molar.
- 30. The method of claim 25 wherein said one or more chemical destabilizing agents are sodium dodecyl sulfate, present in said mixture at a concentration of between 1% and 2% and urea, present in said mixture at a concentration of between 3 molar and 8 molar.
- 31. The method of claim 30, wherein said urea is present in said mixture at a concentration of between 4 molar and 5 molar.
- 32. The method of claim 31, wherein said urea is present in said mixture at a concentration of about 4 molar.
- 33. The method of claim 25, wherein said method produces a stock of rAAV virions substantially free of empty AAV capsids.
- 34. The method of claim 25, wherein said method produces a stock of rAAV wherein at least 75% of the AAV virions present in the stock are packaged AAV capsids.
- 35. The method of claim 25, wherein said method produces a stock of rAAV wherein at least 85% of the AAV virions present in the stock are packaged AAV capsids.
- 36. The method of claim 25, wherein said method produces a stock of rAAV wherein at least 90% of the AAV virions present in the stock are packaged AAV capsids.
- 37. The method of claim 25, wherein the mixture is heated to a temperature of about 60° C.
CROSS-REFERENCE TO RELATED APPLICATION
[0001] This application is related to provisional patent application serial No. 60/333,445, filed Nov. 26, 2001 from which application priority is claimed under 35 USC §119(e)(1) and which application is incorporated herein by reference in its entirety.
Provisional Applications (1)
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Number |
Date |
Country |
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60333445 |
Nov 2001 |
US |