Integrated (epi)-Genomic Analyses Identify Subgroup-Specific Therapeutic Targets in CNS Rhabdoid Tumors

Jonathon Torchia, Brian Golbourn, Shengrui Feng, King Ching Ho, Patrick Sin-Chan, Alexandre Vasiljevic, Joseph D. Norman, Paul Guilhamon, Livia Garzia, Natalia R. Agamez, Mei Lu, Tiffany S. Chan, Daniel Picard, Pasqualino de Antonellis, Dong Anh Khuong-Quang, Aline C. Planello, Constanze Zeller, Dalia Barsyte-Lovejoy, Lucie Lafay-Cousin, Louis LetourneauMathieu Bourgey, Man Yu, Deena M A Gendoo, Misko Dzamba, Mark Barszczyk, Tiago Medina, Alexandra N. Riemenschneider, A. Sorana Morrissy, Young Shin Ra, Vijay Ramaswamy, Marc Remke, Christopher P. Dunham, Stephen Yip, Ho keung Ng, Jian Qiang Lu, Vivek Mehta, Steffen Albrecht, Jose Pimentel, Jennifer A. Chan, Gino R. Somers, Claudia C. Faria, Lucia Roque, Maryam Fouladi, Lindsey M. Hoffman, Andrew S. Moore, Yin Wang, Seung Ah Choi, Jordan R. Hansford, Daniel Catchpoole, Diane K. Birks, Nicholas K. Foreman, Doug Strother, Almos Klekner, Laszló Bognár, Miklós Garami, Péter Hauser, Tibor Hortobágyi, Beverly Wilson, Juliette Hukin, Anne Sophie Carret, Timothy E. Van Meter, Eugene I. Hwang, Amar Gajjar, Shih Hwa Chiou, Hideo Nakamura, Helen Toledano, Iris Fried, Daniel Fults, Takafumi Wataya, Chris Fryer, David D. Eisenstat, Katrin Scheinemann, Adam J. Fleming, Donna L. Johnston, Jean Michaud, Shayna Zelcer, Robert Hammond, Samina Afzal, David A. Ramsay, Nongnuch Sirachainan, Suradej Hongeng, Noppadol Larbcharoensub, Richard G. Grundy, Rishi R. Lulla, Jason R. Fangusaro, Harriet Druker, Ute Bartels, Ronald Grant, David Malkin, C. Jane McGlade, Theodore Nicolaides, Tarik Tihan, Joanna Phillips, Jacek Majewski, Alexandre Montpetit, Guillaume Bourque, Gary D. Bader, Alyssa T. Reddy, G. Yancey Gillespie, Monika Warmuth-Metz, Stefan Rutkowski, Uri Tabori, Mathieu Lupien, Michael Brudno, Ulrich Schüller, Torsten Pietsch, Alexander R. Judkins, Cynthia E. Hawkins, Eric Bouffet, Seung Ki Kim, Peter B. Dirks, Michael D. Taylor, Anat Erdreich-Epstein, Cheryl H. Arrowsmith, Daniel D. De Carvalho*, James T. Rutka, Nada Jabado, Annie Huang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

206 Scopus citations

Abstract

We recently reported that atypical teratoid rhabdoid tumors (ATRTs) comprise at least two transcriptional subtypes with different clinical outcomes; however, the mechanisms underlying therapeutic heterogeneity remained unclear. In this study, we analyzed 191 primary ATRTs and 10 ATRT cell lines to define the genomic and epigenomic landscape of ATRTs and identify subgroup-specific therapeutic targets. We found ATRTs segregated into three epigenetic subgroups with distinct genomic profiles, SMARCB1 genotypes, and chromatin landscape that correlated with differential cellular responses to a panel of signaling and epigenetic inhibitors. Significantly, we discovered that differential methylation of a PDGFRB-associated enhancer confers specific sensitivity of group 2 ATRT cells to dasatinib and nilotinib, and suggest that these are promising therapies for this highly lethal ATRT subtype.

Original languageEnglish (US)
Pages (from-to)891-908
Number of pages18
JournalCancer cell
Volume30
Issue number6
DOIs
StatePublished - Dec 12 2016

Funding

This work was supported by funds from Genome Canada, 110814 (A.H. and\u00A0N.J.), CCSRI #703279 (A.H. and D.D.C.), b.r.a.i.n.child, Mitchell Duckman, Tal Doron, and Suri Boon foundations (A.H. and J.T.R.) and C17 Childhood Cancer and Blood Disorders Research Network (L.L.C., E.B., A.H.). J.T. and P.S.C. are Ontario Graduate Scholars; D.G. and J.D.N. are, respectively, Brain Canada and CIHR Research Fellows. Technical support from V. Lau, A. Ma, and staff of the McGill University and G\u00E9nome Qu\u00E9bec Innovation Center, the Princess Margaret Genomics Center, the Center for Applied Genomics Toronto, the Rare Brain Tumor Consortium (http://www.rarebraintumorconsortium.ca), tumor banks of contributing centers (Table S8), and tissue contributions from Dr. A. Korshunov are gratefully acknowledged.

Keywords

  • ATRT
  • enhancer
  • epigenomics
  • genomics
  • rhabdoid tumors
  • subgroup-specific therapeutics

ASJC Scopus subject areas

  • Oncology
  • Cancer Research

Fingerprint

Dive into the research topics of 'Integrated (epi)-Genomic Analyses Identify Subgroup-Specific Therapeutic Targets in CNS Rhabdoid Tumors'. Together they form a unique fingerprint.

Cite this