Transgenic Mice with Conditionally-Enhanced Bone Morphogen Protein (BMP) Signaling: A Model for Human Bone Diseases

This technology relates to novel animal models of several human bone diseases that have been linked to enhanced BMP signaling. More specifically, this mouse model expresses a mutant receptor for BMP, known as Alk2 that is always actively signaling. This receptor is under the control of the Cre-loxP system, which allows control of expression of the mutant Alk2 in both a developmental and tissue-specific manner. As a result, the enhanced signaling conditions exhibited in multiple human bone-related diseases can be studied with the same animals.

T-Cell-Specific Gfi-1 Knockout Mouse

This is a mouse model available to study T-cell differentiation. Growth factor independent 1 (GFi-1) is a transcriptional repressor that is transiently induced during T-cell activation. This knockout mouse line is a GFi-1[flox/flox] introduced into a mouse Cre controlled by a CD4 promoter, which allows selective removal of GFi-1 exclusively in T-cells. It has thus-far been used to demonstrate that GFi-1 plays a critical role in enhancing Th2 cell expansion and repressing induction of Th17 and CD103+ iTreg cells.

New Mouse Strain with Conditional Deletion of SMAD7: Analysis of Disease Processes Involving Immunological, Fibrotic or Cardiovascular Indications

SMAD7 conditional knockout mice are available for licensing. SMAD7 can be knocked out by breeding with CRE-recombinase transgenic mice with a variety of promoters to yield tissue or cell type-specific deletions of SMAD7. SMAD7 has been shown to play a role in bone morphogenesis, cardiovascular tissue generation, immune regulation and fibrosis. Therefore, these mice provide a unique model to examine the role of the SMAD7 gene in disease processes that involve immunological, fibrotic, or cardiovascular components.

Mouse Model and Derived Cells That Hypersecrete Leukemia Inhibitory Factor (LIF)

Embryonic stem cells (ESCs) are pluripotent cells that can be cultured indefinitely, and maintain their capability to differentiate into all cell lineages. To maintain these cells as well as various types of related induced stem cells and progenitor cells in culture, Mouse Embryonic Fibroblasts (MEFs) are routinely used as feeder cells, largely to serve as a source of Leukemia Inhibitory Factor (LIF). ESCs can also be cultured without feeders if the medium is supplemented with recombinant LIF and other factors.

Mutants Having a Deficit of Functional Steroid Hormone Receptors

This invention concerns "knockout" animals, including mice, which have a deficit of functional steroid hormone receptors, DNA constructs containing the mutations, and methods for producing the animals. The mutation is introduced into the animal or its ancestors at an embryonic stage. These knockout animals provide a model system for studying the biological role of hormones, including steroid hormones and sex steroids, in growth, development, morphological differentiation, and sexual and reproductive behavior and cycles, etc.

A Tet-Regulated Mouse Model for Cataract

Cataract is the most common cause of blindness worldwide, with an estimated 25 million blind and 119 million visually impaired individuals worldwide. Over 20 million adults in the US alone are currently diagnosed with cataracts making this disease a major health concern. The incidence of cataract increases with age and a number of etiologic factors have been proposed in the pathogenesis of age-related cataract in humans including genetic factors, environmental factors and metabolic and biochemical changes in the crystalline lens.

Transgenic Mouse Models for Studying HLA-B57:01 and HLA-B15:02 Linked Immune Responses and Hypersensitivity Reactions

Transgenic mouse models expressing human HLA-B57:01 and HLA-B15:02 molecules have emerged as invaluable tools for unraveling the intricacies of immune responses and hypersensitivity reactions. The major histocompatibility complex (MHC) encoded proteins play a pivotal role in the immune system by presenting peptide fragments to T lymphocytes, and HLA-B57:01 has been associated with severe hypersensitivity reactions triggered by abacavir, a widely used anti-retroviral drug.

A Mouse Model for Human Osteoarthritis

Osteoarthritis (OA) is the most common form of arthritis and affects more than 20 million Americans, costing billions of dollars in health care annually. Osteoarthritis is caused by the breakdown of joint cartilage, leading to a loss of the cartilage "cushion" between the bones of the joints. Risk factors associated with OA include age, obesity, traumatic injury and overuse due to sports or occupational stresses. There is no cure for OA and current treatments are directed at the symptomatic relief of pain, and at improving and maintaining joint function.

DLX3 Knockout Mice for the Study Mouse Models of Tooth, Hair, and Epidermal Defects

This technology includes K14creDLX3 conditional knockout (cKO) mice which will be used to study ectodermal dysplasia disorders such as Amelogenesis Imperfecta, and to study molecular mechanisms of DLX3 regulation in skin and ectodermal appendages. DLX3 is expressed in the epidermis, hair matrix cells in the hair follicle and in the mesenchymal and epithelial compartment of the tooth during embryonic development. To determine the transcriptional network dependent on DLX3-function, we will generate and analyze an epithelial-specific conditional knockout of DLX3.

Vesicular Stomatitis virus (VSV)-based Vaccine against Sudan Virus

There are five known Ebolavirus species: Ebola virus (Zaire ebolavirus); Sudan virus (Sudan ebolavirus or SUDV); Taï Forest virus (Taï Forest ebolavirus, formerly Cote d'Ivoire ebolavirus); Bundibugyo virus (Bundibugyo ebolavirus); and Reston virus (Reston ebolavirus). Last year an ebolavirus outbreak resulted in 164 cases and 55 deaths. While there is an FDA-approved Ebola virus vaccine authorized for use against Ebola virus infections, ERVEBO, this vaccine is not effective against SUDV due to the significant variation between Ebola virus and SUDV.

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