Glucocerebrosidase Activators for the Treatment of Gaucher Disease, Parkinson's Disease, and Other Proteinopathies


Gaucher disease is a rare lysosomal storage disease that is characterized by a loss of function of the glucocerebrosidase (GCase) enzyme, which results in a decreased ability to degrade its lipid substrate, glucocerebroside. The intracellular build up of this lipid causes a broad range of clinical manifestations, ranging from enlarged spleen/liver and anemia to neurodegeneration. In Gaucher disease, the loss of GCase function has been attributed to low levels of the protein in the lysosomal compartment, resulting from improper GCase folding and transport. Also, mutations in the GCase gene have been linked to some forms of Parkinson's disease, and may also be involved in other proteinopathies.

This technology describes a collection of salicylic acid-derived small molecules that act as chaperones to activate proper GCase folding and subsequent transport from the endoplasmic reticulum into the lysosome. Unlike many other small molecule chaperones, these salicylic acid derivatives do not inhibit the activity of the GCase enzyme. These small molecules have been tested for the ability to activate GCase in vitro and show chaperone activity in a patient-derived fibroblast translocation assay.



Potential Commercial Applications: Competitive Advantages:
  • Treatment of Gaucher disease
  • Treatment of Parkinson’s disease
  • Treatment of other lysosomal storage diseases
  The compounds are novel small molecules that enhance proper GCase folding and transport without inhibiting enzyme activity in the lysosome.


Inventors:
Ellen Sidransky (NHGRI)
Noel Southall (NCATS)
Juan Marugan (NCATS)
Wei Zheng (NCATS)
Samarjit Patnaik (NCATS)
Ehud Goldin (NHGRI)
Wendy Westbroek (NHGRI)
Steven Rogers
Frank Schoenen


Intellectual Property:
PCT Application No. PCT/US13/32253
US Application No. 61/616,758
US Application No. 61/616,773

Collaboration Opportunity:

The National Center for Advancing Translational Sciences is seeking statements of capability or interest from parties interested in collaborative research to further develop, evaluate or commercialize this technology. For collaboration opportunities, please contact Dr. Juan Marugan at maruganj@mail.nih.gov. A Collaborative Research/Licensing Opportunity Notice related to this technology was published in the Federal Register on Wednesday, February 6, 2013 (78 FR 8546); this notice may be viewed at http://www.gpo.gov/fdsys/pkg/FR-2013-02-06/pdf/2013-02609.pdf.


Licensing Contact:
Tara Kirby , Ph.D.
NIH Office of Technology Transfer
Email: tk200h@nih.gov
Phone: 301-435-4426

OTT Reference No: E-144-2012/0

Updated: Apr-26-2013