摘要:
Genes and the proteins encoded thereby that are involved in stroke response and/or are regulated by FK506 are disclosed. These genes were discovered using in vivo or in vitro stroke models by determining which genes were differentially upregulated or downregulated upon treatment of the model with FK506. They were also found by a functional assay of genes specifically selected for conferring to cells resistance to hypoxia, dopamine or glutamate treatment. The disclosure includes such genes and proteins as well as analogs, salts and functional derivatives of such proteins, and DNA encoding such analogs, and methods of use. Methods for treating the effects of stroke, hypoxia and/or ischemia by regulating such genes or proteins are disclosed. Methods for screening for compounds capable of regulating the genes and proteins of the invention are also disclosed.
摘要:
The invention relates to a process for the isolation and/or purification of a proteinaceous material, wherein a solid phase comprising a mixture of hydrophobic and hydrophilic groups is used.
摘要:
This invention pertains to the identification of a novel class of glutamate transporters. In particular, this invention pertains to the discovery that proteins originally considered to perform an entirely different function (BNPI, DNPI, etc.), in fact, transport glutamate into synaptic vesicles. Designated VGLUT glutamate transporters, the transporters provide good targets with which to screen for modulators of glutamate uptake into synaptic vesicles.
摘要:
Methods and compositions comprising immunoassays for the detection of functional antibodies and the analysis of vaccine efficacy are described. In particular, the present invention provides opsonophagocytic assays. The assays are useful for the rapid and simultaneous detection of multiple different functional antibodies. In preferred embodiments, the assays include fluorescent labels of multiple colors and/or intensities.
摘要:
The present invention relates to methods for measuring the proliferation and destruction rates of cells by measuring deoxyribonucleic acid (DNA) synthesis and/or destruction. In particular, the methods utilize non-radioactive stable isotope labels to endogenously label DNA synthesized through the de novo nucleotide synthesis pathway in a cell. The amount of label incorporated in the DNA is measured as an indication of cellular proliferation. The decay of labeled DNA over time is measured as an indication of cellular destruction. Such methods do not involve radioactivity or potentially toxic metabolites, and are suitable for use both in vitro and in vivo. Therefore, the invention is useful for measuring cellular proliferation or cellular destruction rates in humans for the diagnosis, prevention, or management of a variety of disease conditions in which cellular proliferation or cellular destruction is involved. The invention also provides methods for measuring proliferation or destruction of T cells in a subject infected with human immunodeficiency virus (HIV) and methods of screening an agent for a capacity to induce or inhibit cellular proliferation or destruction. In addition, the invention provides methods for measuring cellular proliferation in a proliferating population which utilize both radioactive isotope labels and stable isotopes to endogenously label DNA through the de novo nucleotide synthesis pathway.
摘要:
Methods for rapidly identifying drug candidates that can bind to an enzyme at both a common ligand site and a specificity ligand site, resulting in high affinity binding. The bi-ligand drug candidates are screened from a focused combinatorial library where the specific points of variation on a core structure are optimized. The optimal points of variation are identified by which atoms of a ligand bound to the common ligand site are identified to be proximal to the specificity ligand site. As a result, the atoms proximal to the specificity ligand site can then be used as a point for variation to generate a focused combinatorial library of high affinity drug candidates that can bind to both the common ligand site and the specificity ligand site. Different candidates in the library can then have high affinity for many related enzymes sharing a similar common ligand site.
摘要:
The present invention provides an isolated nucleic acid molecule containing a nucleotide sequence which encodes an ADP-glucose receptor, and isolated polynucleotides therefrom. Also provided is an isolated ADP-glucose receptor polypeptide, an isolated immunogenic peptide therefrom, and antibodies specific therefor. The invention also provides a method of identifying an ADP-glucose receptor agonist or antagonist, by contacting an ADP-glucose receptor with one or more candidate compounds under conditions suitable for detection of a G-protein coupled signal in response to ADP-glucose, and identifying a candidate compound that alters production of the signal. Further provided is a method of identifying an ADP-glucose receptor ligand, by contacting an ADP-glucose receptor with one or more candidate compounds under conditions suitable for detecting selective binding of ADP-glucose to ADP-glucose receptor, and identifying a candidate compound that selectively binds the ADP-glucose receptor. Also provided are methods of diagnosing or determining susceptibility to ADP-glucose receptor associated conditions, by detecting in a sample from the individual expression of ADP glucose receptor nucleic acid molecules or polypeptides.
摘要:
Polynucleotides encoding mammalian ECM signaling molecules affecting the cell adhesion, migration, and proliferation activities characterizing such complex biological processes as angiogenesis, chondrogenesis, and oncogenesis, are provided. The polynucleotide compositions include DNAs and RNAs comprising part, or all, of an ECM signaling molecule coding sequence, or biological equivalents. Polypeptide compositions are also provided. The polypeptide compositions comprise mammalian ECM signaling molecules, peptide fragments, inhibitory peptides capable of interacting with receptors for ECM signaling molecules, and antibody products recognizing Cyr61. Also provided are methods for producing mammalian ECM signaling molecules. Further provided are methods for using mammalian ECM signaling molecules to screen for, and/or modulate, disorders associated with angiogenesis, chondrogenesis, and oncogenesis; ex vivo methods for using mammalian ECM signaling molecules to prepare blood products are also provided.
摘要:
A method of predicting the lymphotropic metastatic potential of a solid non-lymphoid tumor. The percentage of cells of each of a plurality of representative samples of the tumor which express lymphoid gene products is determined. The metastatic potential is predicted to be low when no tumor cells in all of the samples are detected to express lymphoid gene products. The metastatic potential is predicted to be high when a high percentage of tumor cells in at least one of the samples are detected to express lymphoid gene products. A solid non-lymphoid tumor is treated by systemically administering a substance comprising a therapeutically effective amount of a molecule linked to a toxin, radionuclide, or chemotherapeutic agent and having binding specificity for a tumor specific lymphoid gene product idiotype. The lymphotropic metastatic potential of a primary solid non-lymphoid tumor is predicted by sub-cutaneously injecting cells from the tumor into at least one anti-AsGMI-treated nude mouse and examining the mouse for tumors at sites other than the site of injection.
摘要:
This invention describes methods and kits for detecting and quantifying viable cells in a sample using fluorescent dyes that can be internalized predominantly by viable cells and have fluorescent properties measurably altered when bound to target components. These methods and kits provide a rapid and cost-effective means of detecting potential biological threats in the field.