Design of the First-in-Class, Highly Potent Irreversible Inhibitor Targeting the Menin-MLL Protein-Protein Interaction

Angew Chem Int Ed Engl. 2018 Feb 5;57(6):1601-1605. doi: 10.1002/anie.201711828. Epub 2018 Jan 15.

Abstract

The structure-based design of M-525 as the first-in-class, highly potent, irreversible small-molecule inhibitor of the menin-MLL interaction is presented. M-525 targets cellular menin protein at sub-nanomolar concentrations and achieves low nanomolar potencies in cell growth inhibition and in the suppression of MLL-regulated gene expression in MLL leukemia cells. M-525 demonstrates high cellular specificity over non-MLL leukemia cells and is more than 30 times more potent than its corresponding reversible inhibitors. Mass spectrometric analysis and co-crystal structure of M-525 in complex with menin firmly establish its mode of action. A single administration of M-525 effectively suppresses MLL-regulated gene expression in tumor tissue. An efficient procedure was developed to synthesize M-525. This study demonstrates that irreversible inhibition of menin may be a promising therapeutic strategy for MLL leukemia.

Keywords: MLL leukemia; drug design; irreversible inhibitors; menin-MLL protein-protein interaction.

Publication types

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

MeSH terms

  • Antineoplastic Agents / chemistry
  • Antineoplastic Agents / pharmacology*
  • Binding Sites
  • Cell Line, Tumor
  • Cell Proliferation / drug effects
  • Crystallography, X-Ray
  • Drug Design
  • Histone-Lysine N-Methyltransferase / antagonists & inhibitors*
  • Histone-Lysine N-Methyltransferase / metabolism
  • Humans
  • Molecular Dynamics Simulation
  • Myeloid-Lymphoid Leukemia Protein / antagonists & inhibitors*
  • Myeloid-Lymphoid Leukemia Protein / metabolism
  • Protein Interaction Domains and Motifs / drug effects
  • Protein Structure, Tertiary
  • Proto-Oncogene Proteins / antagonists & inhibitors*
  • Proto-Oncogene Proteins / metabolism
  • Small Molecule Libraries / chemistry
  • Small Molecule Libraries / metabolism
  • Small Molecule Libraries / pharmacology
  • Structure-Activity Relationship

Substances

  • Antineoplastic Agents
  • KMT2A protein, human
  • MEN1 protein, human
  • Proto-Oncogene Proteins
  • Small Molecule Libraries
  • Myeloid-Lymphoid Leukemia Protein
  • Histone-Lysine N-Methyltransferase