The Leukemogenic TCF3-HLF Complex Rewires Enhancers Driving Cellular Identity and Self-Renewal Conferring EP300 Vulnerability

  • Yun Huang
  • , Brice Mouttet
  • , Hans-Jörg Warnatz
  • , Thomas Risch
  • , Fabian Rietmann
  • , Fabian Frommelt
  • , Quy A Ngo
  • , Maria Pamela Dobay
  • , Blerim Marovca
  • , Silvia Jenni
  • , Yi-Chien Tsai
  • , Sören Matzk
  • , Vyacheslav Amstislavskiy
  • , Martin Schrappe
  • , Martin Stanulla
  • , Matthias Gstaiger
  • , Beat Bornhauser
  • , Marie-Laure Yaspo
  • , Jean-Pierre Bourquin

Research output: Contribution to journalArticlepeer-review

Abstract

The chimeric transcription factor TCF3-HLF defines an incurable acute lymphoblastic leukemia subtype. Here we decipher the regulome of endogenous TCF3-HLF and dissect its essential transcriptional components and targets by functional genomics. We demonstrate that TCF3-HLF recruits HLF binding sites at hematopoietic stem cell/myeloid lineage associated (super-) enhancers to drive lineage identity and self-renewal. Among direct targets, hijacking an HLF binding site in a MYC enhancer cluster by TCF3-HLF activates a conserved MYC-driven transformation program crucial for leukemia propagation in vivo. TCF3-HLF pioneers the cooperation with ERG and recruits histone acetyltransferase p300 (EP300), conferring susceptibility to EP300 inhibition. Our study provides a framework for targeting driving transcriptional dependencies in this fatal leukemia.

Original languageEnglish
Pages (from-to)630-644.e9
Number of pages15
JournalCancer Cell
Volume36
Issue number6
DOIs
Publication statusPublished - 09 Dec 2019
Externally publishedYes

Fields of science

  • 302011 Dermatology

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