Cited by 82Alzheimer's disease research and treatmentsGlycosylation and Glycoproteins ResearchLysosomal Storage Disorders Research

O-GlcNAcase Inhibitor ASN90 is a Multimodal Drug Candidate for Tau and α-Synuclein Proteinopathies

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Permanne, Bruno, Sand, Astrid, Ousson, Solenne, Nény, Maud, Hantson, Jennifer, Schubert, Ryan, Wiessner, Christoph, Quattropani, Anna +1 more·2022·ACS Chemical Neuroscience

Abstract

these have been shown to prevent its aggregation and toxicity. Here, we report the preclinical discovery and development of a novel small molecule OGA inhibitor, ASN90. Consistent with the substantial exposure of the drug and demonstrating target engagement in the brain, the clinical OGA inhibitor ASN90 promoted the O-GlcNAcylation of tau and α-synuclein in brains of transgenic mice after daily oral dosing. Across human tauopathy mouse models, oral administration of ASN90 prevented the development of tau pathology (NFT formation), functional deficits in motor behavior and breathing, and increased survival. In addition, ASN90 slowed the progression of motor impairment and reduced astrogliosis in a frequently utilized α-synuclein-dependent preclinical rodent model of PD. These findings provide a strong rationale for the development of OGA inhibitors as disease-modifying agents in both tauopathies and α-synucleinopathies. Since tau and α-synuclein pathologies frequently co-exist in neurodegenerative diseases, OGA inhibitors represent unique, multimodal drug candidates for further clinical development.

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  • Inhibitors of O-GlcNAcase enzyme (OGA) like thiamet G increase tau glycosylation, reduce NFTs and neuronal cell death, improve motor behavior, and prolong survival of tau transgenic mice.

    “Inhibitors of the O-GlcNAcase enzyme (OGA)-like thiamet G increase tau glycosylation, reduce NFTs and neuronal cell death, improve motor behavior, and prolong survival of tau transgenic mice [174, 220, 221].”

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Authors
Permanne, B., Sand, A., Ousson, S., Nény, M., Hantson, J., Schubert, R., Wiessner, C., Quattropani, A., & Beher, D.
Affiliations
Asceneuron (Switzerland) (CH)
Corresponding author
Beher, Dirk
Venue
ACS Chemical Neuroscience
Published
2022-03-31
Volume
13
Issue
8
Pages
1296-1314
ISSN
1948-7193 (ISSN-L)
OpenAlex
W4221137705
Cited by
82
References
66
Citations by year
2026: 12 · 2025: 29 · 2024: 22 · 2023: 15 · 2022: 4
FWCI
10.82
Type
journal article
Language
en
Open access
Locations
  • ACS Chemical Neuroscience (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
Funders
Alzheimer's Drug Discovery Foundation (20131210)
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Glycosylation and Glycoproteins Research
  • Health Sciences › Medicine › Physiology › Lysosomal Storage Disorders Research
Keywords
O-GlcNAcase inhibitors, O-GlcNAcylation, tauopathy, synucleinopathies, Parkinson's disease, tau aggregation, neurofibrillary tangles, astrocyte activation, motor impairment, oral drug delivery, disease-modifying therapy
MeSH terms
Synucleinopathies, Animals, beta-N-Acetylhexosaminidases, Pharmaceutical Preparations, Parkinson Disease, tau Proteins, Tauopathies, Mice, alpha-Synuclein

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