Congenital disorders of glycosylation (CDGs) are a group of inborn errors characterized by abnormalities in the process of glycosylation of biomolecules. Although more than 100 different CDGs have been reported, only one has been thoroughly described, namely NGLY1 deficiency or NGLY1-CDG. NGLY1 encodes N-glycanase 1, an enzyme involved in the cytosolic degradation of misfolded glycoproteins and other glycoproteins bound for degradation.

Children with Hutchinson-Gilford progeria syndrome (HGPS) suffer from acceleration of certain aging symptoms, mainly cardiovascular disease that generally leads to death from myocardial infarction and/or stroke. The cause of HGPS has been discovered to be a de novo point mutation in lamin A (LNMA) gene. NHGRI Scientist have generated a transgenic mouse model of HGPS. This mouse carries a bacterial artificial chromosome (BAC) with a De novo mutation 1824 C to T (G608G) mutated form of human LNMA.

Congenital disorders of glycosylation (CDGs) are inherited disorders of abnormal protein glycosylation that affect multiple organ systems. More than 100 different CDGs have been described, affecting protein and lipid glycosylation. NHGRI investigators have been able to isolate fibroblasts from patients with PMM2 (phosphomannomutase)-CDG, also known at CDG type Ia, which is an inherited, broad-spectrum disorder with developmental and neurological abnormalities.

This technology includes a transgenic mouse model of Niemann-Pick Disease Type C (NPC), which is a rare neurodegenerative disorder, characterized by intracellular accumulation of cholesterol and gangliosides. The mouse strain, Tg(Npcl), expresses wild-type NPC1 gene under the control of the prion promoter. When combined with the NPC deficient mouse model, BALB/c npcnih/nih, also known as Npcl-/-, the transgene insertion allele rescues life expectancy of Npc1-/- mice. Npc1-/- mouse have reduced life expectancy and die around 8 weeks, making it a difficult model to be utilized.

This technology includes a compound for use as a selective agonist of the A1 adenosine receptor (AR) for therapeutic hypothermia and other conditions. We have examined various synthesized nucleosides in a model of mouse hypothermia, in conjunction with AR knockout mice, to characterize the biological profiles. In trying to identify novel highly selective A1AR agonists that have superior in vivo activities, we have adapted a means of rigidifying the ribose moiety of adenosine in the form of a bicyclic (N)-methanocarba ring.

This technology includes a class of A3AR-selective agonists to be used therapeutically to treat a variety of conditions, including chronic pain, cancer, and inflammatory diseases. This class of compounds produced full agonists of the human A3AR of nanomolar affinity that were consistently highly selective (>1000-fold vs. A1AR and A2AAR). The selectivity at mouse A3 receptors is smaller, but the compounds are still effective in vivo in reducing or preventing development of neuropathic pain.

This technology includes P2X4R adenosine receptor antagonists, including NP-1815-PX and 5-BDBD, for treating stroke. Stroke is the fifth leading cause of death for Americans and a leading cause of serious long-term disability. Current approaches to treating ischemic stroke are primarily limited to the administration of thrombolytic therapeutics such as tissue plasminogen activator, or to an invasive endovascular procedure involving the use of a clot removing/retrieving device.

This technology includes a novel family of adenosine kinase (AdK) inhibitors, including pharmaceutical compositions containing the adenosine kinase inhibitors, and their use for preventing epilepsy and its progression in patients. Endogenous adenosine (i.e., naturally occurring adenosine) acts on G protein-coupled receptors (adenosine receptors, ARs) in the central nervous system to suppress seizures and pain, and to blunt the effects of ischemia (a restriction in blood supply to tissues).

This technology includes MRS4322, which is an A3 agonist that is currently being evaluated for treatment of traumatic brain injury. Although its affinity in the receptor is in the micromolar range, it enters the brain in sufficient concentration to activate a protective CNS receptor, A3 adenosine receptor. Potential applications of such A3 agonists could also include neurodegenerative conditions.

This technology includes the use of selective antagonist for the P2Y14 receptor for the treatment and prevention of neuropathic pain. Neuropathic pain conditions arising from injuries to the nervous system due to trauma, disease or neurotoxins are exceedingly difficult to treat. Clinicians and patients are often left to manage neuropathic pain with opioids, but these approaches are limited by the eventual loss in opioid efficacy with developing tolerance, the occurrence of severe adverse side effects and the strong potential for their abuse.