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Glycosphingolipids are organizational building blocks of plasma membranes that participate in key cellular functions, such as signaling and cell-to-cell interactions. Glucosylceramide synthase - encoded by the Ugcg gene - controls the first committed step in the major pathway of glycosphingolipid synthesis. Global disruption of the Ugcg gene in mice is lethal during gastrulation. The inventors have established a Ugcg allele flanked by loxP sites (floxed).

This technology relates to compositions and methods for improving the growth characteristics of cells engineered to produce live viruses such as the Influenza virus. Featured is a method that uses the gene candidate, siat7e, or its expressed or inhibited products in Madin Darby Canine Kidney (MDCK) cells. The gene expression modulates anchorage-dependence of the cell line thereby allowing scale-up on bioreactor platforms without the use of microcarrier beads and reducing production costs.

The invention hereby offered for licensing is in the field of Immunotherapy and more specifically in therapy of autoimmune diseases such as Type I diabetes, multiple sclerosis, rheumatoid arthritis and systemic lupus erythematosis and immune mediated allergies such as asthma as well as in transplantation-related disorders, such as graft acceptance and graft-versus-host-disease (GVHD).

TTP has been implicated in autoimmune and inflammatory diseases through its role as a regulator of the transcripts encoding several pro-inflammatory cytokines, including tumor necrosis factor alpha. However, it has been difficult to study endogenous TTP in man and other animals because it is expressed at very low levels in most cells and tissues, and because of the lack of mouse monoclonal antibodies directed at the human protein.

Antibodies to NHE3, useful for immunoblotting and immunocytochemistry, are available to resell for research purposes. NHE3 is a membrane Na+/H+ exchanger involved in maintenance of fluid volume homeostasis in the kidney. It is expressed on the apical membrane of the renal proximal tubule and plays a major role in NaCl and HCO3 absorption. The inventor has developed rabbit polyclonal antibodies directed against a peptide sequence common to human, rat and mouse NHE3.

Antibodies to thiazide-sensitive sodium-chloride cotransporter (NCC), useful for immunoblotting and immunocytochemistry, are available to resell for research purposes. NCC is found on the apical membrane of the distal convoluted tubule, where it is the principal mediator of Na+ and CI- reabsorption in this segment of the nephron. NCC is the target of thiazide diuretics used in the treatment of hypertension. The inventors have developed rabbit polyclonal antibodies directed against a peptide sequence in the C-terminal region of NCC.

Antibodies to NKCC2, useful for immunoblotting and immunocytochemistry, are available to resell for research purposes. NKCC2 is found on the apical surface of the thick ascending limb of the loop of Henle, where it facilitates transport of sodium, potassium, and chloride ions from the lumen of the renal thick ascending limb into the cell. Transport of sodium dilutes the luminal fluid, decreasing its osmolality creating an osmotic driving force for water reabsorption in the connecting tubule and cortical collecting duct under the influence of the hormone vasopressin.

Antibodies to UTA1, useful for immunoblotting and immunocytochemistry, are available to resell for research purposes. Urea Transporter 1 (UTA1) is activated by vasopressin and is responsible for urea transport across the apical membrane into the intracellular space within the renal inner medullary collecting duct. The inventor has developed rabbit polyclonal antibodies directed against a peptide sequence in human UTA1. Antibody also recognizes UTA3, another product of the same gene.

Parathyroid hormone receptors found on osteoblasts in bone and renal tubule cells in kidney elevate blood calcium levels when stimulated by parathyroid hormone (PTH) and PTH-related protein (PTHrP). Excessive secretion of PTH from the parathyroid gland results in primary hyperparathyroidism. Production of PTHrP by various tumors results in humoral hypercalcemia of malignancy. In both of these conditions, excessive blood calcium levels lead to clinically significant morbidity. A parathyroid hormone antagonist could therefore have therapeutic value.

JC Virus causes a fatal disease in the brain called progressive multifocal leukoencephalopathy (PML) that occurs in many patients with immunocompromised conditions. For example, more than five percent (5%) of AIDS patients develop PML. Additionally, these conditions include, but are not limited to, cancers such as leukemias and lymphomas, organ transplants such as kidney, heart and autoimmune conditions with treatment that modulates the immune system such as Multiple Sclerosis (MS), rheumatoid arthritis, psoriasis, and systemic lupus erythematosus.