Chemical Toolkit for PARK7: Potent, Selective, and High-Throughput
Yuqing Jia1, Robbert Q Kim1, Raymond Kooij1
1Oncode Institute & Department of Cell and Chemical Biology, Leiden University Medical Center, Einthovenweg 20, Leiden 2333 ZC, The Netherlands.
Journal of Medicinal Chemistry
|September 23, 2022
Summary
Researchers developed a chemical toolbox to study Parkinson
Area of Science:
- Biochemistry
- Chemical Biology
- Neuroscience
Background:
- Parkinson's disease protein 7 (PARK7/DJ1) is a key therapeutic target.
- PARK7/DJ1 is implicated in early-onset Parkinson's disease, cancer, and chemoresistance.
- Limited chemical tools hinder PARK7/DJ1 research.
Purpose of the Study:
- To create and validate a chemical toolbox for PARK7/DJ1.
- To enable exploration of PARK7/DJ1 function and inhibitor development.
Main Methods:
- Synthesis of a selective PARK7/DJ1 inhibitor.
- Development of fluorescent probes (Rhodamine110 and SulfoCy5) from the inhibitor.
- High-throughput screening (HTS) assay development using the Rhodamine110 probe.
- Cell lysate assay development using the SulfoCy5 probe.
Main Results:
- A novel chemical toolbox for PARK7/DJ1 was successfully created.
- A selective submicromolar inhibitor covalently modifies Cys106.
- Two fluorescent probes were generated for biochemical and cellular assays.
- The Rhodamine110 probe enabled HTS of 8000 compounds.
- The SulfoCy5 probe facilitates PARK7/DJ1 inhibitor assessment in cell lysates.
Conclusions:
- The developed chemical toolbox significantly advances PARK7/DJ1 research.
- New avenues are opened for understanding PARK7/DJ1's physiological roles.
- This work supports the development of novel PARK7/DJ1-targeted therapeutics.
