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.
© 2018 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.
Publication types
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Research Support, N.I.H., Extramural
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Research Support, Non-U.S. Gov't
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Research Support, U.S. Gov't, Non-P.H.S.
MeSH terms
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Antineoplastic Agents / chemistry
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Antineoplastic Agents / pharmacology*
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Binding Sites
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Cell Line, Tumor
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Cell Proliferation / drug effects
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Crystallography, X-Ray
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Drug Design
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Histone-Lysine N-Methyltransferase / antagonists & inhibitors*
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Histone-Lysine N-Methyltransferase / metabolism
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Humans
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Molecular Dynamics Simulation
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Myeloid-Lymphoid Leukemia Protein / antagonists & inhibitors*
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Myeloid-Lymphoid Leukemia Protein / metabolism
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Protein Interaction Domains and Motifs / drug effects
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Protein Structure, Tertiary
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Proto-Oncogene Proteins / antagonists & inhibitors*
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Proto-Oncogene Proteins / metabolism
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Small Molecule Libraries / chemistry
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Small Molecule Libraries / metabolism
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Small Molecule Libraries / pharmacology
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Structure-Activity Relationship
Substances
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Antineoplastic Agents
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KMT2A protein, human
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MEN1 protein, human
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Proto-Oncogene Proteins
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Small Molecule Libraries
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Myeloid-Lymphoid Leukemia Protein
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Histone-Lysine N-Methyltransferase