摘要:
The present invention provides a method of human gene therapy using AAV vectors with essentially wildtype phenotype. Genes of 900 bases or less can be inserted into wildtype AAV and still allow the resulting vector to have a largely wildtype phenotype. For example, several antisense genes could be inserted and still allow packaging. Such wildtype vectors have several advantages. First, high titers of such vectors is easy to accomplish. Second, the vectors, since they include the Rep78 gene, integrate specifically into human chromosome 19. Third, such vectors, being wildtype, spread after their initial introduction. Another method for use of large wildtype AAV genomes is as complementors for fully defective AAV vectors. Such complementors can be delivered by virus infection and, be introduced easily into 100% of the cells used to produce virus. Viral infection is superior to synthetic techniques for introducing DNA into tissue culture producer cells. When large essentially wildtype AAV complementor virus are used in conjunction with AAV vector virus allowing for the introduction of both vectors into all cells, high titers of recombinant AAV virus is achieved.
摘要:
A hybrid gene vector suitable for introducing foreign DNA into a mammalian cell comprising the foreign DNA ligated to an AAV genome; a method of constructing the hybrid gene vector; a method of transducing foreign DNA into mammalian cells comprising infecting the cells with the above hybrid gene vector and a method of rescuing foreign DNA from mammalian cells utilizing helper virus.
摘要:
The invention encompasses a composition for regulating smooth muscle cells. In particular, the invention encompasses a vector comprising a smooth muscle promoter operably-linked to a nucleic acid encoding a calcium-activated potassium channel.
摘要:
The present invention provides methods and compositions for treating a cardiovascular condition. In particular, provided is a method comprising administering to a subject an agent that increases the level and/or activity of angiotensin II type 2 receptors. Also provided is a method for evaluating the risk of having or developing a cardiovascular condition
摘要:
AAV Rep78 mutants comprising a modified AAV Rep78 protein that possesses different biochemical and biological functions as compared to the wild-type AAV Rep78 protein are disclosed. Particularly, the AAV Rep78 mutants that bind to at least one of a papillomavirus DNA or an AAV DNA or an oncogene or HIV DNA differently as compared to the wild-type AAV Rep78 protein, assays to select such mutants, and pharmaceutical compositions containing the AAV Rep78 mutants are disclosed. The present invention further discloses DNA sequences encoding at least one AAV Rep78 mutant that possesses different biochemical and biological functions as compared to the wild-type AAV Rep78 protein and pharmaceutical compositions comprising the DNA sequences. The present invention additionally is directed to a method of inhibiting papillomavirus associated diseases comprising administering pharmaceutical compositions containing AAV Rep78 mutants or the DNA sequences encoding the mutants. Also discloses are DNA sequences comprising the full length AAV genome modified to where the AAV Rep78 protein is replaced with an AAV Rep mutant that binds weakly or not at all to a papillomavirus DNA or an AAV DNA or both differently as compared to the wild-type AAV Rep78 protein and its use in producing recombinant AAV at increased levels production over wild-type levels of production. Further disclosed is a method of inhibiting papillomavirus-associated diseases, cancer, and HIV-associated diseases comprising administering a pharmaceutical composition comprising a wild-type AAV Rep78 or a mutant thereof to a patient afflicted with a papillomavirus-associated disease, cancer, or HIV-associated diseases. Particularly, useful in treating papillomavirus-associated diseases are the AAV Rep78 or mutant thereof that binds to nucleotides 14-56 of p97 of HPV-16 and inhibits expression of HPV oncoproteins. An AAV Rep78 regulation element of a DNA sequence comprising about nucleotides 14-56 of the nucleotide sequence of FIG. 2 and an AAV Rep78 regulatable promoter comprising the regulation element and a promoter sequence except for the HPV-16 p97 promoter.
摘要:
Methods for screening a patient for a cancer wherein the methods comprise detecting an HPV in a biopsy from a patient are disclosed. Also disclosed are compositions and products for screening and for treating cancer in a patient, as well as methods of treating a patient afflicted with a cancer.
摘要:
The present invention is discloses an improved method of producing infectious papillomavirus in vitro, with a method comprising (a) introducing papillomavirus or papillomavirus DNA or portions thereof necessary for replication, into an epithelial cell; and (b) providing conditions that produce papillomavirus, wherein the conditions comprise not contacting the epithelial cell a fibroblast and does not comprise an organotypic raft culture or a dermal equivalent. The present invention also discloses a papillomavirus infected non-keratinocyte epithelial cell produced by the methods of the present invention. Further, uses of the disclosed method includes detection methods, methods for screening anti-papillomavirus drugs, methods of making recombinant papillomavirus for vaccines and studying the life cycle. Additionally, a method of reducing and assessing the risk of spontaneous abortion is disclosed.
摘要:
The invention encompasses a composition for regulating smooth muscle cells. In particular, the invention encompasses a vector comprising a smooth muscle promoter operably-linked to a nucleic acid encoding a calcium-activated potassium channel.
摘要:
The invention encompasses a composition for regulating smooth muscle cells. In particular, the invention encompasses a vector comprising a smooth muscle promoter operably-linked to a nucleic acid encoding a calcium-activated potassium channel.
摘要:
The present invention utilizes AAV as a vector to transfect epithelial cells with an AAV/heterologous gene containing/Neo vector, to form a heterologous protein secreting culture of epithelial cells. This culture is useful for preparing recombinant skin using the organotypic epithelial raft culture system. The sheets of epithelial cells is composed of a stratified sqaumous epithelium composed of a lower layer of immature basal cells and an upper layer of mature keratinized epithelium. The rAAV virus stock prepared without wild type AAV is useful in expressing heterologous protein, however, the maximum production of the heterologous protein was achieved; when the rAAV virus stock contained wild type AAV. This invention discloses that AAV is appropriate for genetically altering skin to secrete new proteins to treat diseases and skin disorders or conditions.