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A C19MC-LIN28A-MYCN Oncogenic Circuit Driven by Hijacked Super-enhancers Is a Distinct Therapeutic Vulnerability in ETMRs: A Lethal Brain Tumor

  • P. Sin-Chan
  • , I. Mumal
  • , T. Suwal
  • , B. Ho
  • , X. Fan
  • , I. Singh
  • , Y. Du
  • , M. Lu
  • , N. Patel
  • , J. Torchia
  • , D. Popovski
  • , M. Fouladi
  • , P. Guilhamon
  • , J. R. Hansford
  • , S. Leary
  • , L. M. Hoffman
  • , Levy J. M. Mulcahy
  • , A. Lassaletta
  • , P. Solano-Paez
  • , E. Rivas
  • A. Reddy, G. Y. Gillespie, N. Gupta, Meter T. E. Van, H. Nakamura, Wong T. -T., Ra Y. -S., Kim S. -K., Luca Massimi, R. G. Grundy, J. Fangusaro, D. Johnston, J. Chan, L. Lafay-Cousin, E. I. Hwang, Y. Wang, D. Catchpoole, J. Michaud, B. Ellezam, R. Ramanujachar, H. Lindsay, M. D. Taylor, C. E. Hawkins, E. Bouffet, N. Jabado, S. K. Singh, C. L. Kleinman, D. Barsyte-Lovejoy, Li X. -N., P. B. Dirks, C. Y. Lin, S. C. Mack, J. N. Rich, A. Huang*
*Autore corrispondente per questo lavoro
  • University of Toronto
  • Baylor College of Medicine
  • Texas Children's Hospital Houston
  • Ontario Institute for Cancer Research
  • Cincinnati Children's Hospital Medical Center
  • Seattle Children’s Hospital and Research Institute
  • Hospital Infantil Universitario Nino Jesus de Madrid
  • Hospital Universitario Virgen del Rocio
  • University of Alabama at Birmingham
  • University of California at San Francisco
  • Kurume University
  • Children's Healthcare of Atlanta
  • University of Ottawa
  • University of Calgary
  • Alberta Children's Hospital
  • Fudan University
  • The Children's Hospital at Westmead
  • Southampton General Hospital
  • McGill University

Risultato della ricerca: Contributo in rivistaArticolo

Abstract

Embryonal tumors with multilayered rosettes (ETMRs) are highly lethal infant brain cancers with characteristic amplification of Chr19q13.41 miRNA cluster (C19MC) and enrichment of pluripotency factor LIN28A. Here we investigated C19MC oncogenic mechanisms and discovered a C19MC-LIN28A-MYCN circuit fueled by multiple complex regulatory loops including an MYCN core transcriptional network and super-enhancers resulting from long-range MYCN DNA interactions and C19MC gene fusions. Our data show that this powerful oncogenic circuit, which entraps an early neural lineage network, is potently abrogated by bromodomain inhibitor JQ1, leading to ETMR cell death. Sin-Chan et al. uncover a C19MC-LIN28A-MYCN super-enhancer-dependent oncogenic circuit in embryonal tumors with multilayered rosettes (ETMRs). The circuit entraps an early neural lineage network to sustain embryonic epigenetic programming and is vulnerable to bromodomain inhibition, which promotes ETMR cell death.
Lingua originaleInglese
pagine (da-a)51-67.e7
RivistaCancer Cell
Volume36
Numero di pubblicazione1
DOI
Stato di pubblicazionePubblicato - 2019

OSS delle Nazioni Unite

Questo processo contribuisce al raggiungimento dei seguenti obiettivi di sviluppo sostenibile

  1. SDG 3 - Salute e benessere
    SDG 3 Salute e benessere

All Science Journal Classification (ASJC) codes

  • Oncologia
  • Ricerca sul Cancro

Keywords

  • Biological
  • Biomarkers
  • Brain Neoplasms
  • C19MC
  • Cell Cycle
  • Cell Transformation
  • Chromosomes
  • DNA Copy Number Variations
  • ETMR
  • Enhancer Elements
  • Epigenesis
  • Gene Expression Regulation
  • Gene Regulatory Networks
  • Genetic
  • Genetic Association Studies
  • Genetic Predisposition to Disease
  • Germ Cell and Embryonal
  • Human
  • Humans
  • LIN28A
  • MYCN
  • MicroRNAs
  • Models
  • Multigene Family
  • N-Myc Proto-Oncogene Protein
  • Neoplasms
  • Neoplastic
  • Oncogenes
  • Pair 19
  • Pair 2
  • RNA-Binding Proteins
  • Tumor
  • brain tumor
  • cell-cycle
  • epigenetics
  • microRNA
  • super-enhancer
  • therapeutics

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