Nature Communications (Nov 2021)

Inhibition of histone acetyltransferase function radiosensitizes CREBBP/EP300 mutants via repression of homologous recombination, potentially targeting a gain of function

  • Manish Kumar,
  • David Molkentine,
  • Jessica Molkentine,
  • Kathleen Bridges,
  • Tongxin Xie,
  • Liangpeng Yang,
  • Andrew Hefner,
  • Meng Gao,
  • Reshub Bahri,
  • Annika Dhawan,
  • Mitchell J. Frederick,
  • Sahil Seth,
  • Mohamed Abdelhakiem,
  • Beth M. Beadle,
  • Faye Johnson,
  • Jing Wang,
  • Li Shen,
  • Timothy Heffernan,
  • Aakash Sheth,
  • Robert L. Ferris,
  • Jeffrey N. Myers,
  • Curtis R. Pickering,
  • Heath D. Skinner

DOI
https://doi.org/10.1038/s41467-021-26570-8
Journal volume & issue
Vol. 12, no. 1
pp. 1 – 16

Abstract

Read online

Mutations in histone acetyltransferases (HATs) CREBBP and EP300 are generally thought to lead to decreased function or absence of protein product. Here the authors describe a gain of function of several CREBBP mutations leading to baseline hyper-acetylation, increased homologous recombination and potential synergy between radiation and HAT inhibition in CREBBP/EP300 mutant tumors.