Discovery of a Novel Noniminosugar Acid α Glucosidase Chaperone Series
摘要:
Pompe disease is an autosomal recessive lysosomal storage disorder (LSD) caused by deficiency of the lysosomal enzyme acid a-glucosidase (GAA). Many disease-causing mutated GAA retain enzymatic activity but are not translocated from endoplasmic reticulum (ER) to lysosomes. Enzyme replacement therapy (ERT) is the only treatment for Pompe disease but remains expensive, inconvenient, and does not reverse all disease manifestations. It was postulated that small molecules which aid in protein folding and translocation to lysosomes could provide an alternate to ERT. Previously, several iminosugars have been proposed as small-molecule chaperones for specific LSDs. Here we identified a novel series of noniminosugar chaperones for GAA. These moderate GAA inhibitors are shown to bind and thermostabilize GAA and increase GAA translocation to lysosomes in both wild-type and Pompe fibroblasts. AMDE and physical properties studies indicate that this series is a promising lead for further pharmacokinetic evaluation and testing in Pompe disease models.
[EN] ALPHA-GLUCOSIDASE BINDERS AND METHODS OF THEIR USE<br/>[FR] LIANTS ALPHA-GLUCOSIDASE ET LEURS PROCÉDÉS D'UTILISATION
申请人:US SECRETARY DEPT OF HEALTH AND HUMAN SERVICES OFFICE OF TECHNOLOGY TRANSFER
公开号:WO2012061597A1
公开(公告)日:2012-05-10
Compounds that bind to acid alpha glucosidase are described. Methods of using these compounds for the treatment of diabetes and Pompe disease are also described.