MTH1 inhibition eradicates cancer by preventing sanitation of the dNTP pool

  • Helge Gad
  • , Tobias Koolmeister
  • , Ann Sofie Jemth
  • , Saeed Eshtad
  • , Sylvain A. Jacques
  • , Cecilia E. Ström
  • , Linda M. Svensson
  • , Niklas Schultz
  • , Thomas Lundbäck
  • , Berglind Osk Einarsdottir
  • , Aljona Saleh
  • , Camilla Göktürk
  • , Pawel Baranczewski
  • , Richard Svensson
  • , Ronnie P.A. Berntsson
  • , Robert Gustafsson
  • , Kia Strömberg
  • , Kumar Sanjiv
  • , Marie Caroline Jacques-Cordonnier
  • , Matthieu Desroses
  • Anna Lena Gustavsson, Roger Olofsson, Fredrik Johansson, Evert J. Homan, Olga Loseva, Lars Bräutigam, Lars Johansson, Andreas Höglund, Anna Hagenkort, Therese Pham, Mikael Altun, Fabienne Z. Gaugaz, Svante Vikingsson, Bastiaan Evers, Martin Henriksson, Karl S.A. Vallin, Olov A. Wallner, Lars G.J. Hammarström, Elisee Wiita, Ingrid Almlöf, Christina Kalderén, Hanna Axelsson, Tatjana Djureinovic, Jordi Carreras Puigvert, Maria Häggblad, Fredrik Jeppsson, Ulf Martens, Cecilia Lundin, Bo Lundgren, Ingrid Granelli

Research output: Contribution to journalArticlepeer-review

Abstract

Cancers have dysfunctional redox regulation resulting in reactive oxygen species production, damaging both DNA and free dNTPs. The MTH1 protein sanitizes oxidized dNTP pools to prevent incorporation of damaged bases during DNA replication. Although MTH1 is non-essential in normal cells, we show that cancer cells require MTH1 activity to avoid incorporation of oxidized dNTPs, resulting in DNA damage and cell death. We validate MTH1 as an anticancer target in vivo and describe small molecules TH287 and TH588 as first-in-class nudix hydrolase family inhibitors that potently and selectively engage and inhibit the MTH1 protein in cells. Protein co-crystal structures demonstrate that the inhibitors bind in the active site of MTH1. The inhibitors cause incorporation of oxidized dNTPs in cancer cells, leading to DNA damage, cytotoxicity and therapeutic responses in patient-derived mouse xenografts. This study exemplifies the non-oncogene addiction concept for anticancer treatment and validates MTH1 as being cancer phenotypic lethal.

Original languageEnglish
Pages (from-to)215-221
Number of pages7
JournalNature
Volume508
Issue number7495
DOIs
Publication statusPublished - 10 Apr 2014

Bibliographical note

Funding Information: Acknowledgements We thank scientists at BESSY, ESRF, Max-Lab and the Swiss Light Source for structural biology data collection support, PSF for protein purification, GE Healthcare for instrument access, HTSRC (Rockefeller University) for iTC200 calorimeter access, S. Nordstrand for animal support, and L. Ny, U. Stierner and J. Mattsson for discussions. The Helleday Laboratory is primarily funded by the Torsten and Ragnar Söderberg Foundation (T.H.). This project is primarily supported by The Knut and Alice Wallenberg Foundation. Further support was received from the Swedish Research Council (T.H., A.J.J., P.A., P.S., J.A.N.), the European Research Council (T.H.), Swedish Cancer Society (T.H., J.A.N.), the Swedish Children’s Cancer Foundation (T.H.), AFA insurance (T.H.), the Swedish Pain Relief Foundation (T.H.), The Cancer Society in Stockholm (T.H.), the Wenner-Gren Foundations (P.S.), the Swedish Foundation for Strategic Research (P.S.), the Dutch Cancer Society (B.E.), EMBO LTF (R.B.), Region Västra Götaland (J.A.N.), BioCARE (J.A.N.), the Swiss National Science Foundation (F.Z.G.) and the Nicholson Exchange Program (T.L.). Chemical Biology Consortium Sweden (CBCS) is primarily funded by the Swedish Research Council. CBCS acknowledge Swedish Orphan Biovitrum for their donation of a small-molecule infrastructure including a compound collection. Publisher Copyright: © 2014 Macmillan Publishers Limited. All rights reserved.

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