Chemical Toolkit for PARK7: Potent, Selective, and High-Throughput

J Med Chem. 2022 Oct 13;65(19):13288-13304. doi: 10.1021/acs.jmedchem.2c01113. Epub 2022 Sep 23.

Abstract

The multifunctional human Parkinson's disease protein 7 (PARK7/DJ1) is an attractive therapeutic target due to its link with early-onset Parkinson's disease, upregulation in various cancers, and contribution to chemoresistance. However, only a few compounds have been identified to bind PARK7 due to the lack of a dedicated chemical toolbox. We report the creation of such a toolbox and showcase the application of each of its components. The selective PARK7 submicromolar inhibitor with a cyanimide reactive group covalently modifies the active site Cys106. Installment of different dyes onto the inhibitor delivered two PARK7 probes. The Rhodamine110 probe provides a high-throughput screening compatible FP assay, showcased by screening a compound library (8000 molecules). The SulfoCy5-equipped probe is a valuable tool to assess the effect of PARK7 inhibitors in a cell lysate. Our work creates new possibilities to explore PARK7 function in a physiologically relevant setting and develop new and improved PARK7 inhibitors.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Coloring Agents
  • Humans
  • Parkinson Disease*
  • Protein Deglycase DJ-1
  • Up-Regulation

Substances

  • Coloring Agents
  • PARK7 protein, human
  • Protein Deglycase DJ-1

Supplementary concepts

  • Parkinson Disease 7, Autosomal Recessive Early-Onset