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Prion Protein Expression Inhibitor
- Molecular classification
- Other
01
Overview
A prion protein expression inhibitor is a molecule or agent that reduces the synthesis or accumulation of the cellular prion protein (PrP^C), which is encoded by the PRNP gene. The misfolding and aggregation of PrP^C into its pathogenic form (PrP^Sc) underlies prion diseases, a group of fatal neurodegenerative disorders including Creutzfeldt–Jakob disease (CJD) and scrapie. Inhibiting prion protein expression or its pathological conversion is considered a promising therapeutic strategy for these diseases.
02
Mechanism of action
Transcriptional repression, destabilization/folding inhibition, endocytosis/degradation of PrP^C
03
Biological functions
Inhibition of protein expressionNeuroprotection (potential)
04
Disease associations
Neurodegenerative diseaseTransmissible spongiform encephalopathies
05
Safety considerations
Insufficient brain penetration for some compoundsLack of clinical efficacy despite in vitro activityPotential off-target effects of inhibitors
06
Interacting drugs
Quinacrine
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