摘要:
A method of producing propagation-defective Vesicular Stomatitis Virus (VSV) in a cell culture is provided. The method involves introducing a plasmid vector encoding an optimized VSV G gene into a cell; expressing VSV G protein from the optimized VSV G gene; and introducing a propagation-defective VSV into the cell expressing the VSV G protein encoded by the optimized VSV G gene. The method further includes growing the cells in culture; and recovering the propagation-defective VSV from the culture.
摘要:
The present invention provides a method of increasing expression of a promoter distal gene in a virus of the order Mononegavirales, and a recombinant virus constructed by such method. Also provided is a method of attenuating a virus of the order Mononegavirales, and of constructing an attenuated virus useful for a vaccine.
摘要:
A method for treating a biological or pharmaceutical product to inactivate viruses and pyrogens therein comprising the steps of adsorbing said product onto a solid phase; treating the adsorbed product with a virus or pyrogen inactivating agent; separating the solid phase and quantitatively removing the residual inactivating agent therefrom; and recovering said product.
摘要:
The present invention provides mutant viruses with a decreased ability to block nuclear transport of mRNA or protein in an infected cell which are attenuated in vivo. The mutant viruses of the present invention may also be capable of triggering the anti-viral systems of normal host cells while remaining sensitive to the effects of these systems. The present invention further provides for the use of the mutant viruses in a range of applications including, but not limited to, as therapeutics for the treatment of cancer and infections, as vaccines and adjuvants, as viral vectors, and as oncolytic and cytolytic agents for the selective lysis of malignant or infected cells.
摘要:
The present invention provides a method of increasing expression of a promoter distal gene in a virus of the order Mononegavirales, and a recombinant virus constructed by such method. Also provided is a method of attenuating a virus of the order Mononegavirales, and of constructing an attenuated virus useful for a vaccine.
摘要:
Provided is a method of attenuating a virus of the order Mononegavirales, comprising the step of: rearranging said virus' gene order by moving a gene essential for RNA replication away from its wild-type 3' promoter proximal position site, wherein said gene is an essential limiting factor for genome replication and is placed in the next to last position in the gene order. Also provided is a method of making an attenuated virus useful for a vaccine, comprising the steps of: rearranging said virus' gene order by moving a gene essential for RNA replication away from its wild-type 3' promoter proximal position site, wherein a gene which is a n essential limiting factor for genome replication is placed in the next to last position in the gene order; and placing a gene coding for an immune response inducing antigen in the position closest to the 3' end of the gene order. Also provided is a method of attenuating a virus of the order Mononegavirales, comprising the step of: rearranging said virus' gene order.
摘要:
Compositions including attenuated oncolytic viruses and methods of their use for the treatment of cancer are disclosed. Some attenuated virus exhibit potential as tumor therapies by exhibiting characteristics such as high selectivity, infectivity, cytotoxicity, or replication index for tumor cells, and/or low infectivity, cytotoxicity, or replication index for normal cells. In preferred embodiments, the ratio of replication of virus in normal cells:tumor cells is about 1:100 or greater. Preferred viruses have two or more mechanisms of attenuation including insertion of a transgene such as GFP or an interferon, preferably at position 1 of the viral genome. The compositions can be administered to subjects having tumors, in an effective amount to delay or inhibit the growth of a tumor, reduce the growth or size of the tumor, and/or inhibit or reduce metastasis of the tumor. Methods for manufacturing viruses and methods of testing their oncolytic potential are also disclosed.
摘要:
The present invention provides mutant viruses with a decreased ability to block nuclear transport of mRNA or protein in an infected cell which are attenuated in vivo. The mutant viruses of the present invention may also be capable of triggering the anti-viral systems of normal host cells while remaining sensitive to the effects of these systems. The present invention further provides for the use of the mutant viruses in a range of applications including, but not limited to, as therapeutics for the treatment of cancer and infections, as vaccines and adjuvants, as viral vectors, and as oncolytic and cytolytic agents for the selective lysis of malignant or infected cells.
摘要:
Compositions and methods for monitoring viral fusion are provided. Methods of labelling virions are also provided. A novel, detectable label is provided. A mobile lipid bilayer is also provided.
摘要:
The present invention provides a method of increasing expression of a promoter distal gene in a virus of the order Mononegavirales, and a recombinant virus constructed by such method. Also provided is a method of attenuating a virus of the order Mononegavirales, and of constructing an attenuated virus useful for a vaccine.