Abstract:
The present invention provides methods of delivering a secreted protein into the bloodstream of a mammal. A nucleic acid molecule encoding the protein is introduced into the gastrointestinal tract of the mammal, and the nucleic acid molecule enters an intestinal epithelial cell, where the protein is produced and secreted into the bloodstream of the mammal.
Abstract:
Conjugated compositions comprising a fragment of HIV-1 Vpr or a non-HIV-1 Vpr protein conjugated to a therapeutic compound and methods of using the same to deliver therapeutic compounds to a cell's nucleus or for the preparation of drug delivery particles are disclosed. Functional fragments of HIV-1 Vpr and functional non-HIV-1 Vpr proteins, and pharmaceutical compositions comprising the same are disclosed. Methods of inhibiting cell proliferation and methods of treating an individual who has a hyperproliferative disease are disclosed. Methods of identifying compounds that inhibit Vpr protein binding to the p6 domain of p55 or to p6 protein and kits for performing such methods are disclosed.
Abstract:
Compositions and methods are provided that relate to a recombinant virus-based vector, e.g., a baculovirus-based vector, that allows the expression of an exogenous target protein in non-permissive cells (e.g., non-permissive insect cells or mammalian cells) in the absence of expression of a detectable selection marker. The vector includes a nucleic acid sequence encoding a detectable selection marker which is controlled by a promoter that is active in host cells used to screen for recombinant virus but is silent in the non-permissive cell used for expression of the exogenous target protein. The vector also includes an exogenous nucleic acid sequence encoding a target protein under the control of a promoter that is active in the non-permissive cell. This system allows the selection marker to be expressed during viral plaque screening, but not while the target protein is being produced.
Abstract:
Disclosed and claimed is the use of a liquid jet intradermal administration apparatus that administers a composition: without a needle; and in the epidermis, dermis and/or hypodermis, such as a Pigjet apparatus, for administering bovine vaccines or immunogenic compositions, especially bovine plasmid vaccines or immunogenic compositions. Accordingly, the invention involves bovine immunogenic or vaccine compositions in such an apparatus, and methods for vaccinating bovines or for inducing an immunogenic response in bovines employing such an apparatus, as well as the apparatus containing bovine immunogenic or vaccine compositions.
Abstract:
Disclosed and claimed are methods for treating or preventing neurodegenerative diseases, conditions or maladies or symptoms or physiology associated therewith, such as treating or preventing Parkinson's disease or symptoms or physiology associated therewith such as motor deficits or nigrostriatal degeneration; or, for inducing nigrostriatal regeneration. Advantageously, the methods involve administering a lentiviral vector that expresses GDNF, such as human GDNF, or a variant, homolog, analog or derivative thereof.
Abstract:
Disclosed is a method of selectively inhibiting the growth of malignant cells in mammals, including humans. The method selectively inhibits the growth of malignant cells of all varieties, and is particularly useful in treating brain tumors and other malignancies of the central nervous system. The method employs HSV-1-derived vectors containing a DNA having a deletion in both copies of the LAT gene and both copies of the ICP34.5 gene of HSV-1. The vectors are delivered to malignant cells either in vivo or in vitro, in accordance with the method. The HSV-1-derived expression vectors are non-neurovirulent and do not spontaneously reactivate from latency, and they optionally contain a functional HSV thymidine kinase gene, which can enhance the effectiveness against cancer of drug treatment with gancyclovir or acyclovir. Alternatively, the HSV-1-derived vectors contain at least one transcriptional unit of a LAT promoter sequence operatively linked to a nucleic acid having a nucleotide sequence encoding a polypeptide toxic for cells expressing the vector, for example, human interferon-&ggr;. A method of expressing in a mammalian cell a gene encoding a preselected protein, a method of treating a genetic defect, and a method of detecting an HSV-1 expressing cell also employ vectors of the present invention that contain at least one transcriptional unit of a constitutive LAT promoter operatively linked to and controlling the transcription of a gene encoding a preselected protein. Also, disclosed are kits for expressing in a mammalian cell a gene encoding a preselected protein, useful for practicing the methods, and mammalian cells containing the HSV-derived vectors.
Abstract:
This invention relates to an isolated DNA molecule encoding a Sox-9 gene which codes for the Sox-9 polypeptide. The human SOX-9 gene has been mapped to chromosome 17 in the same region as CMPD-1, the locus for Campomelic Dysplasia (CD). Sox-9 appears to have a role in mammalian skeletal development, and is used in the treatment of diseases involving bone or cartilage deficiency.
Abstract:
Novel methods of treating subjects afflicted with an androgen-dependent disorder, such as prostate cancer and benign prostatic hyperplasia are disclosed. Specifically, methods of treating androgen-dependent disorders by introducing a polypeptide or a polynucleotide encoding the polypeptide, which enhances inactivation of active androgens, are described.
Abstract:
The present invention relates generally to immunization methods using recombinant viral vectors. In particular, the invention relates to methods and compositions for immunizing a subject with a nucleic acid molecule encoding an antigen of interest, wherein the nucleic acid molecule is delivered to the subject via a recombinant AAV virion.
Abstract:
Normal cells, such as fibroblasts or other tissue or organ cell types, are genetically engineered to express biologically active, therapeutic agents, such as proteins that are normally produced in small amounts, for example, MIS, or other members of the TGF-beta family Herceptin™, interferons, andanti-angiogenic factors. These cells are seeded into a matrix for implantation into the patient to be treated. Cells may also be engineered to include a lethal gene, so that implanted cells can be destroyed once treatment is completed. Cells can be implanted in a variety of different matrices. In a preferred embodiment, these matrices are implantable and biodegradable over a period of time equal to or less than the expected period of treatment, when cells engraft to form a functional tissue producing the desired biologically active agent. Implantation may be ectopic or in some cases orthotopic. Representative cell types include tissue specific cells, progenitor cells, and stem cells. Matrices can be formed of synthetic or natural materials, by chemical coupling at the time of implantation, using standard techniques for formation of fibrous matrices from polymeric fibers, and using micromachining or microfabrication techniques. These devices and strategies are used as delivery systems via standard or minimally invasive implantation techniques for any number of parenterally deliverable recombinant proteins, particularly those that are difficult to produce in large amounts and/or active forms using conventional methods of purification, for the treatment of a variety of conditions that produce abnormal growth, including treatment of malignant and benign neoplasias, vascular malformations (hemangiomas), inflammatory conditions, keloid formation, abdominal or plural adhesions, endometriosis, congenital or endocrine abnormalities, and other conditions that can produce abnormal growth such as infection. Efficacy of treatment with the therapeutic biologicals is detected by determining specific criteria, for example, cessation of cell proliferation, regression of abnormal tissue, or cell death, or expression of genes or proteins reflecting the above.