Abstract: The present invention addresses the need to improve the long-term storage stability (i.e. infectivity) of vector formulations. In particular, it has been demonstrated that for adenovirus, the use of bulking agents, cryoprotectants and lyoprotectants imparts desired properties that allow both lyophilized and liquid adenovirus formulations to be stored at 4° C. for up to 6 months and retain an infectivity between 60-100% of the starting infectivity.
Abstract: The present invention relates to compositions and methods for the enhancing or inducing an immune response against an immunogenic molecule by indirectly activating PKR. More specifically, immunotherapy is improved by co-administering a MDA-7 polypeptide with an immunogenic molecule against which an immune response is desired. Such immunotherapies include cancer vaccines, and compositions thereof are described.
Type:
Application
Filed:
March 3, 2003
Publication date:
January 15, 2004
Applicants:
Board of Regent, The University of Texas System, Introgen Therapeutics, Inc.
Inventors:
Sunil Chada, Abujiang Pataer, Abner Mhashilkar, Rajagopal Ramesh, Jack Roth, Steve Swisher
Abstract: The invention relates to methods for quantifying viral particles in preparations by detecting the intrinsic fluorescence of viral proteins and correlating this emission to a standard for that virus.
Abstract: The present invention relates to immunotherapy methods for treating hyperproliferative disease or pathogen-induced diseases in humans. More specifically, the invention is directed, in one embodiment, to methods for treating a subject with a hyperproliferative disease in which the expression of a self gene is upregulated in hyperproliferative cells. In another embodiment, an adenoviral expression construct comprising a self gene under the control of a promoter operable in eukaryotic cells is intradermally administered to said hyperproliferative cells. In another embodiment of the present invention, a pathogen-induced disease in which the pathogen gene expression is increased or altered, is treated by intradermally administered a pathogen gene under the control of a promoter operable in eukaryotic cells.
Type:
Application
Filed:
August 9, 2002
Publication date:
March 6, 2003
Applicant:
Vanderbilt University and Introgen Therapeutics, Inc.
Inventors:
Dmitry Gabrilovich, David Carbone, Sunil Chada, Abner Mhashilkar
Abstract: The present invention addresses the need to improve the yields of viral vectors when grown in cell culture systems. In particular, it has been demonstrated that for adenovirus, the use of low-medium perfusion rates in an attached cell culture system provides for improved yields. In other embodiments, the inventors have shown that there is improved Ad-p53 production witrh cells grown in serum-free conditions, and in particular in serum-free suspension culture. Also important to the increase of yields is the use of detergent lysis. Combination of these aspects of the invention permits purification of virus by a single chromatography step that results in purified virus of the same quality as preparations from double CsCl banding using an ultracentrifuge.
Type:
Application
Filed:
December 27, 2001
Publication date:
January 9, 2003
Applicant:
Introgen Therapeutics, Inc.
Inventors:
Shuyuan Zhang, Capucine Thwin, Zheng Wu, Toohyon Cho
Abstract: The present invention addresses the need to improve the yields of viral vectors when grown in cell culture systems. In particular, it has been demonstrated that for adenovirus, the use of low-medium perfusion rates in an attached cell culture system provides for improved yields. In other embodiments, the inventors have shown that there is improved Ad-p53 production witrh cells grown in serum-free conditions, and in particular in serum-free suspension culture. Also important to the increase of yields is the use of detergent lysis. Combination of these aspects of the invention permits purification of virus by a single chromatography step that results in purified virus of the same quality as preparations from double CsCl banding using an ultracentrifuge.
Abstract: The present invention addresses the need to improve the yields of viral vectors when grown in cell culture systems. In particular, it has been demonstrated that for adenovirus, the use of low-medium perfusion rates in an attached cell culture system provides for improved yields. In other embodiments, the inventors have shown that there is improved Ad-p53 production with cells grown in serum-free conditions, and in particular in serum-free suspension culture. Also important to the increase of yields is the use of detergent lysis. Combination of these aspects of the invention permits purification of virus by a single chromatography step that results in purified virus of the same quality as preparations from double CsCl banding using an ultracentrifuge.
Type:
Application
Filed:
December 27, 2001
Publication date:
November 28, 2002
Applicant:
Introgen Therapeutics, Inc.
Inventors:
Shuyuan Zhang, Capucine Thwin, Zheng Wu, Toohyon Cho
Abstract: The present invention addresses the need to improve the long-term storage stability (i.e. infectivity) of vector formulations. In particular, it has been demonstrated that for adenovirus, the use of bulking agents, cryoprotectants and lyoprotectants imparts desired properties that allow both lyophilized and liquid adenovirus formulations to be stored at 4° C. for up to 6 months and retain an infectivity between 60-100% of the starting infectivity.
Abstract: The present invention addresses the need to improve the yields of viral vectors when grown in cell culture systems. In particular, it has been demonstrated that for adenovirus, the use of low-medium perfusion rates in an attached cell culture system provides for improved yields. In other embodiments, the inventors have shown that there is improved Ad-p53 production witrh cells grown in serum-free conditions, and in particular in serum-free suspension culture. Also important to the increase of yields is the use of detergent lysis. Combination of these aspects of the invention permits purification of virus by a single chromatography step that results in purified virus of the same quality as preparations from double CsCl banding using an ultracentrifuge.
Type:
Grant
Filed:
November 20, 1997
Date of Patent:
February 27, 2001
Assignee:
Introgen Therapeutics, Inc.
Inventors:
Shuyuan Zhang, Capucine Thwin, Zheng Wu, Toohyon Cho