Nature Communications (Jun 2021)

Polθ inhibitors elicit BRCA-gene synthetic lethality and target PARP inhibitor resistance

  • Diana Zatreanu,
  • Helen M. R. Robinson,
  • Omar Alkhatib,
  • Marie Boursier,
  • Harry Finch,
  • Lerin Geo,
  • Diego Grande,
  • Vera Grinkevich,
  • Robert A. Heald,
  • Sophie Langdon,
  • Jayesh Majithiya,
  • Claire McWhirter,
  • Niall M. B. Martin,
  • Shaun Moore,
  • Joana Neves,
  • Eeson Rajendra,
  • Marco Ranzani,
  • Theresia Schaedler,
  • Martin Stockley,
  • Kimberley Wiggins,
  • Rachel Brough,
  • Sandhya Sridhar,
  • Aditi Gulati,
  • Nan Shao,
  • Luned M. Badder,
  • Daniela Novo,
  • Eleanor G. Knight,
  • Rebecca Marlow,
  • Syed Haider,
  • Elsa Callen,
  • Graeme Hewitt,
  • Joost Schimmel,
  • Remko Prevo,
  • Christina Alli,
  • Amanda Ferdinand,
  • Cameron Bell,
  • Peter Blencowe,
  • Chris Bot,
  • Mathew Calder,
  • Mark Charles,
  • Jayne Curry,
  • Tennyson Ekwuru,
  • Katherine Ewings,
  • Wojciech Krajewski,
  • Ellen MacDonald,
  • Hollie McCarron,
  • Leon Pang,
  • Chris Pedder,
  • Laurent Rigoreau,
  • Martin Swarbrick,
  • Ed Wheatley,
  • Simon Willis,
  • Ai Ching Wong,
  • Andre Nussenzweig,
  • Marcel Tijsterman,
  • Andrew Tutt,
  • Simon J. Boulton,
  • Geoff S. Higgins,
  • Stephen J. Pettitt,
  • Graeme C. M. Smith,
  • Christopher J. Lord

DOI
https://doi.org/10.1038/s41467-021-23463-8
Journal volume & issue
Vol. 12, no. 1
pp. 1 – 15

Abstract

Read online

Polθ has been recently identified as a therapeutic target in cancer but specific inhibitors are currently unavailable. Here, the authors identify small molecule inhibitors of Polθ’s polymerase activity which elicit BRCA1/2 synthetic lethality, enhance the effect of PARP inhibitors and target PARP inhibitor resistance caused by 53BP1/Shieldin pathway defects.