Nature Communications (Nov 2021)

The chemotherapeutic CX-5461 primarily targets TOP2B and exhibits selective activity in high-risk neuroblastoma

  • Min Pan,
  • William C. Wright,
  • Richard H. Chapple,
  • Asif Zubair,
  • Manbir Sandhu,
  • Jake E. Batchelder,
  • Brandt C. Huddle,
  • Jonathan Low,
  • Kaley B. Blankenship,
  • Yingzhe Wang,
  • Brittney Gordon,
  • Payton Archer,
  • Samuel W. Brady,
  • Sivaraman Natarajan,
  • Matthew J. Posgai,
  • John Schuetz,
  • Darcie Miller,
  • Ravi Kalathur,
  • Siquan Chen,
  • Jon Patrick Connelly,
  • M. Madan Babu,
  • Michael A. Dyer,
  • Shondra M. Pruett-Miller,
  • Burgess B. Freeman,
  • Taosheng Chen,
  • Lucy A. Godley,
  • Scott C. Blanchard,
  • Elizabeth Stewart,
  • John Easton,
  • Paul Geeleher

DOI
https://doi.org/10.1038/s41467-021-26640-x
Journal volume & issue
Vol. 12, no. 1
pp. 1 – 20

Abstract

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CX-5461 recently progressed through phase I clinical trial as a first-inhuman inhibitor of RNA-POL I. Here, the authors demonstrate that CX-5461 synergizes with topoisomerase I inhibitors to inhibit neuroblastoma cells and that its primary target in this disease is topoisomerase II beta and not RNA-POL I.