An Inv(16)(p13.3q24.3)-encoded CBFA2T3-GLIS2 fusion protein defines an aggressive subtype of pediatric acute megakaryoblastic leukemia

Tanja A Gruber, Amanda Larson Gedman, Jinghui Zhang, Cary S Koss, Suresh Marada, Huy Q Ta, Shann-Ching Chen, Xiaoping Su, Stacey K Ogden, Jinjun Dang, Gang Wu, Vedant Gupta, Anna K Andersson, Stanley Pounds, Lei Shi, John Easton, Michael I Barbato, Heather L Mulder, Jayanthi Manne, Jianmin WangMichael Rusch, Swati Ranade, Ramapriya Ganti, Matthew Parker, Jing Ma, Ina Radtke, Li Ding, Giovanni Cazzaniga, Andrea Biondi, Steven M Kornblau, Farhad Ravandi, Hagop Kantarjian, Stephen D Nimer, Konstanze Döhner, Hartmut Döhner, Timothy J Ley, Paola Ballerini, Sheila Shurtleff, Daisuke Tomizawa, Souichi Adachi, Yasuhide Hayashi, Akio Tawa, Lee-Yung Shih, Der-Cherng Liang, Jeffrey E Rubnitz, Ching-Hon Pui, Elaine R Mardis, Richard K Wilson, James R Downing

Research output: Contribution to journalArticlepeer-review

Abstract

To define the mutation spectrum in non-Down syndrome acute megakaryoblastic leukemia (non-DS-AMKL), we performed transcriptome sequencing on diagnostic blasts from 14 pediatric patients and validated our findings in a recurrency/validation cohort consisting of 34 pediatric and 28 adult AMKL samples. Our analysis identified a cryptic chromosome 16 inversion (inv(16)(p13.3q24.3)) in 27% of pediatric cases, which encodes a CBFA2T3-GLIS2 fusion protein. Expression of CBFA2T3-GLIS2 in Drosophila and murine hematopoietic cells induced bone morphogenic protein (BMP) signaling and resulted in a marked increase in the self-renewal capacity of hematopoietic progenitors. These data suggest that expression of CBFA2T3-GLIS2 directly contributes to leukemogenesis.

Original languageEnglish
Pages (from-to)683-697
Number of pages15
JournalCancer Cell
Volume22
Issue number5
DOIs
Publication statusPublished - 2012 Nov 13
Externally publishedYes

Bibliographical note

Copyright © 2012 Elsevier Inc. All rights reserved.

Subject classification (UKÄ)

  • Cancer and Oncology
  • Basic Medicine

Free keywords

  • Animals
  • Bone Morphogenetic Proteins/metabolism
  • Child
  • Chromosome Inversion
  • Chromosomes, Human, Pair 16
  • Drosophila/genetics
  • Gene Expression Profiling
  • Humans
  • Kruppel-Like Transcription Factors/genetics
  • Leukemia, Megakaryoblastic, Acute/classification
  • Mice
  • Oncogene Proteins, Fusion/genetics
  • Prognosis
  • Recombinant Fusion Proteins/genetics
  • Repressor Proteins/genetics
  • Sequence Analysis, RNA
  • Signal Transduction
  • Tumor Suppressor Proteins/genetics

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