Cited by 589Prion Diseases and Protein MisfoldingEndoplasmic Reticulum Stress and DiseaseAlzheimer's disease research and treatments

Oral treatment targeting the unfolded protein response prevents neurodegeneration and clinical disease in prion-infected mice

Moreno, Julie A., Halliday, Mark, Molloy, Colin, Radford, Helois, Verity, Nicholas, Axten, Jeffrey M., Ortori, Catharine A., Willis, Anne E. +3 more·2013·Science Translational Medicine

Abstract

During prion disease, an increase in misfolded prion protein (PrP) generated by prion replication leads to sustained overactivation of the branch of the unfolded protein response (UPR) that controls the initiation of protein synthesis. This results in persistent repression of translation, resulting in the loss of critical proteins that leads to synaptic failure and neuronal death. We have previously reported that localized genetic manipulation of this pathway rescues shutdown of translation and prevents neurodegeneration in a mouse model of prion disease, suggesting that pharmacological inhibition of this pathway might be of therapeutic benefit. We show that oral treatment with a specific inhibitor of the kinase PERK (protein kinase RNA-like endoplasmic reticulum kinase), a key mediator of this UPR pathway, prevented UPR-mediated translational repression and abrogated development of clinical prion disease in mice, with neuroprotection observed throughout the mouse brain. This was the case for animals treated both at the preclinical stage and also later in disease when behavioral signs had emerged. Critically, the compound acts downstream and independently of the primary pathogenic process of prion replication and is effective despite continuing accumulation of misfolded PrP. These data suggest that PERK, and other members of this pathway, may be new therapeutic targets for developing drugs against prion disease or other neurodegenerative diseases where the UPR has been implicated.

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Crossref · 10.1126/scitranslmed.3006767

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Authors
Moreno, J. A., Halliday, M., Molloy, C., Radford, H., Verity, N., Axten, J. M., Ortori, C. A., Willis, A. E., Fischer, P. M., Barrett, D. A., & Mallucci, G. R.
Affiliations
  • University of Leicester (GB)
  • GlaxoSmithKline (United States) (US)
  • University of Nottingham (GB)
Corresponding author
Mallucci, Giovanna R.
Venue
Science Translational Medicine
Published
2013-10-09
Volume
5
Issue
206
Pages
206ra138-206ra138
ISSN
  • 1946-6234 (ISSN-L)
  • 1946-6242
OpenAlex
W2010375635
Cited by
589
References
29
Citations by year
2026: 22 · 2025: 27 · 2024: 21 · 2023: 29 · 2022: 32 · 2021: 42 · 2020: 59 · 2019: 46 · 2018: 54 · 2017: 72 · 2016: 54 · 2015: 58 · 2014: 58 · 2013: 13
FWCI
27.31
Type
journal article
Language
en
Open access
closed
Locations
  • Science Translational Medicine (publishedVersion)
  • PubMed (publishedVersion)
  • Leicester Research Archive (University of Leicester) (submittedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Prion Diseases and Protein Misfolding
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Endoplasmic Reticulum Stress and Disease
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
Keywords
prion disease, unfolded protein response, protein synthesis inhibition, neurodegeneration, oral drug therapy, neuroprotection, prion replication, synaptic failure, neurodegenerative disease treatment
MeSH terms
Adenine, Administration, Oral, Animals, Blood-Brain Barrier, Brain, Indoles, Nerve Degeneration, Phosphorylation, Prions, Synapses, Protein Biosynthesis, Eukaryotic Initiation Factor-2, Prion Diseases, Neuroprotective Agents, eIF-2 Kinase, Mice, Unfolded Protein Response

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