1,6- epi-Cyclophellitol Cyclosulfamidate Is a Bona Fide Lysosomal α-Glucosidase Stabilizer for the Treatment of Pompe Disease

Ken Kok, Chi Lin Kuo, Rebecca E. Katzy, Lindsey T. Lelieveld, Liang Wu, Véronique Roig-Zamboni, Gijsbert A. Van Der Marel, Jeroen D.C. Codée, Gerlind Sulzenbacher, Gideon J. Davies, Herman S. Overkleeft, Johannes M.F.G. Aerts, Marta Artola*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

α-Glucosidase inhibitors are potential therapeutics for the treatment of diabetes, viral infections, and Pompe disease. Herein, we report a 1,6-epi-cyclophellitol cyclosulfamidate as a new class of reversible α-glucosidase inhibitors that displays enzyme inhibitory activity by virtue of its conformational mimicry of the substrate when bound in the Michaelis complex. The α-d-glc-configured cyclophellitol cyclosulfamidate 4 binds in a competitive manner the human lysosomal acid α-glucosidase (GAA), ER α-glucosidases, and, at higher concentrations, intestinal α-glucosidases, displaying an excellent selectivity over the human β-glucosidases GBA and GBA2 and glucosylceramide synthase (GCS). Cyclosulfamidate 4 stabilizes recombinant human GAA (rhGAA, alglucosidase alfa, Myozyme) in cell medium and plasma and facilitates enzyme trafficking to lysosomes. It stabilizes rhGAA more effectively than existing small-molecule chaperones and does so in vitro, in cellulo, and in vivo in zebrafish, thus representing a promising therapeutic alternative to Miglustat for Pompe disease.

Original languageEnglish
Pages (from-to)14819–14827
Number of pages9
JournalJournal of the American Chemical Society
Volume144
DOIs
Publication statusPublished - 2 Aug 2022

Bibliographical note

Funding Information:
We thank The Netherlands Organization for Scientific Research (NWO-CW, ChemThem grant to J.M.F.G.A. and H.S.O.), the European Research Council (ERC-2011-AdG-290836 “Chembiosphing” to H.S.O., ERC-2012-AdG-322942 “Glycopoise” to G.J.D. and ERC-2020-SyG-951231 “Carbocentre” to H.S.O. and G.J.D.), Sanofi Genzyme (research grant to J.M.F.G.A. and H.S.O. for financial support, postdoctoral contract to M.A. and Myozyme supply). G.J.D. is supported by the Royal Society though the Ken Murray Research Professorship. We kindly thank Giancarlo Parenti, Federico II University Naples, for providing Myozyme samples for structural studies. We thank Andrea Dardis and the Biobank from Patients Affected by ALS Neuromuscular and Lysosomal Diseases (University Hospital of Udine, Italy) for providing us with plasma samples from Pompe patients. We thank Synchrotron Soleil for beam time allocation and the beam line staff for assistance with data collection. This work was also supported in part by the CNRS and the French Infrastructure for Integrated Structural Biology (FRISBI) ANR-10-INSB-05-01.

Funding Information:
We thank The Netherlands Organization for Scientific Research (NWO-CW, ChemThem grant to J.M.F.G.A. and H.S.O.), the European Research Council (ERC-2011-AdG-290836 “Chembiosphing” to H.S.O., ERC-2012-AdG-322942 “Glycopoise” to G.J.D., and ERC-2020-SyG-951231 “Carbocentre” to H.S.O. and G.J.D.), Sanofi Genzyme (research grant to J.M.F.G.A. and H.S.O. for financial support, postdoctoral contract to M.A. and Myozyme supply). G.J.D. is supported by the Royal Society though the Ken Murray Research Professorship. We kindly thank Giancarlo Parenti, Federico II University, Naples, for providing Myozyme samples for structural studies. We thank Andrea Dardis and the Biobank from Patients Affected by ALS, Neuromuscular and Lysosomal Diseases (University Hospital of Udine, Italy) for providing us with plasma samples from Pompe patients. We thank Synchrotron Soleil for beam time allocation and the beam line staff for assistance with data collection. This work was also supported in part by the CNRS and the French Infrastructure for Integrated Structural Biology (FRISBI) ANR-10-INSB-05-01.

Publisher Copyright:
© 2022 The Authors. Published by American Chemical Society.

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