The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 19, 1997
Filed:
Jun. 07, 1995
Terence R Flotte, Glen Burnie, MD (US);
Barrie J Carter, Seattle, WA (US);
William B Guggino, Baltimore, MD (US);
Rikki Solow, Gaithersburg, MD (US);
Targeted Genetics Corporation, Seattle, WA (US);
Johns Hopkins University, Baltimore, MD (US);
Abstract
Adeno-associated virus (AAV) vectors may have utility for gene therapy but heretofore a significant obstacle has been the inability to generate sufficient quantifies of such recombinant vectors in amounts that would be clinically useful for human gene therapy application. Stable, helper-free AAV packaging cell lines have been elusive, mainly due to the activities of Rep protein, which down-regulates its own expression and reverses cellular immortalization. This invention provides packaging systems and processes for packaging AAV vectors that efficiently circumvent these problems by replacing the AAV p5 promoter with a heterologous promoter and that allow for substantially increased packaging efficiency.