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Updated: Jan 7, 2026

Drug Repurposing Hypothesis Generation Using the "RE:fine Drugs" System
Published on: December 11, 2016
Drug Development
JiMin Kim1,2, Dohui Ku1,2, InWook Park1,2
1Yonsei Institute of Pharmaceutical Sciences, Incheon, Incheon, Korea, Republic of (South).
A novel small molecule, IK-9j, effectively clears amyloid-beta (Aβ) aggregates, a hallmark of Alzheimer's disease (AD). This Alzheimer's drug candidate significantly improved memory in mouse models, offering therapeutic potential.
Area of Science:
- Neuroscience
- Pharmacology
- Biochemistry
Background:
- Alzheimer's disease (AD) is characterized by amyloid-beta (Aβ) aggregate accumulation, leading to neuroinflammation and cognitive decline.
- Reducing amyloid burden is a key therapeutic strategy for AD.
- Small molecule drugs are being developed to dissociate and clear Aβ.
Purpose of the Study:
- To synthesize and identify novel small molecules for Aβ clearance.
- To evaluate the therapeutic efficacy of a lead compound, IK-9j, in an AD mouse model.
Main Methods:
- Chemical library synthesis and screening.
- Thioflavin T assays and dot blot analyses for Aβ clearance.
- Evaluation of IK-9j in an Aβ42-infused mouse model.
Main Results:
- IK-9j demonstrated significant efficacy in clearing Aβ aggregates.
- Mice treated with IK-9j showed marked improvements in short- and long-term memory recall.
Conclusions:
- IK-9j shows promise as a novel small-molecule therapeutic agent for Alzheimer's disease.
- This compound has the potential to mitigate Aβ-associated cognitive deficits.
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