Discovery of SHP2-D26 as a First, Potent, and Effective PROTAC Degrader of SHP2 Protein

J Med Chem. 2020 Jul 23;63(14):7510-7528. doi: 10.1021/acs.jmedchem.0c00471. Epub 2020 May 21.

Abstract

Src homology 2 domain-containing phosphatase 2 (SHP2) is an attractive therapeutic target for human cancers and other human diseases. Herein, we report our discovery of potent small-molecule SHP2 degraders whose design is based upon the proteolysis-targeting chimera (PROTAC) concept. This work has led to the discovery of potent and effective SHP2 degraders, exemplified by SHP2-D26. SHP2-D26 achieves DC50 values of 6.0 and 2.6 nM in esophageal cancer KYSE520 and acute myeloid leukemia MV4;11 cells, respectively, and is capable of reducing SHP2 protein levels by >95% in cancer cells. SHP2-D26 is >30-times more potent in inhibition of phosphorylation of extracellular signal-regulated kinase (ERK) and of cell growth than SHP099, a potent SHP2 inhibitor, in KYSE520 and MV4;11 cancer cell lines. This study demonstrates that induced SHP2 degradation is a very effective approach to inhibit the function of SHP2. Further optimization of these SHP2 degraders may lead to the development of a new class of therapies for cancers and other human diseases.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Antineoplastic Agents / chemical synthesis
  • Antineoplastic Agents / pharmacology
  • Cell Line, Tumor
  • Cullin Proteins / metabolism
  • Dipeptides / chemical synthesis
  • Dipeptides / pharmacology*
  • Drug Design
  • Drug Screening Assays, Antitumor
  • Enzyme Inhibitors / chemical synthesis
  • Enzyme Inhibitors / pharmacology*
  • Humans
  • Ligands
  • Piperidines / pharmacology
  • Protein Tyrosine Phosphatase, Non-Receptor Type 11 / antagonists & inhibitors*
  • Protein Tyrosine Phosphatase, Non-Receptor Type 11 / metabolism
  • Proteolysis
  • Pyrazines / chemical synthesis
  • Pyrazines / pharmacology*
  • Pyrimidines / pharmacology
  • Pyrrolidines / chemical synthesis
  • Pyrrolidines / pharmacology*

Substances

  • Antineoplastic Agents
  • Cullin Proteins
  • Dipeptides
  • Enzyme Inhibitors
  • Ligands
  • Piperidines
  • Pyrazines
  • Pyrimidines
  • Pyrrolidines
  • SHP099
  • Protein Tyrosine Phosphatase, Non-Receptor Type 11