Active medulloblastoma enhancers reveal subgroup-specific cellular origins

Charles Y. Lin, Serap Erkek, Yiai Tong, Linlin Yin, Alexander J. Federation, Marc Zapatka, Parthiv Haldipur, Daisuke Kawauchi, Thomas Risch, Hans Jörg Warnatz, Barbara C. Worst, Bensheng Ju, Brent A. Orr, Rhamy Zeid, Donald R. Polaski, Maia Segura-Wang, Sebastian M. Waszak, David T.W. Jones, Marcel Kool, Volker HovestadtIvo Buchhalter, Laura Sieber, Pascal Johann, Lukas Chavez, Stefan Gröschel, Marina Ryzhova, Andrey Korshunov, Wenbiao Chen, Victor V. Chizhikov, Kathleen J. Millen, Vyacheslav Amstislavskiy, Hans Lehrach, Marie Laure Yaspo, Roland Eils, Peter Lichter, Jan O. Korbel, Stefan M. Pfister, James E. Bradner, Paul A. Northcott

Onderzoeksoutput: Bijdrage aan tijdschriftArtikelpeer review

280 Citaten (Scopus)

Samenvatting

Medulloblastoma is a highly malignant paediatric brain tumour, often inflicting devastating consequences on the developing child. Genomic studies have revealed four distinct molecular subgroups with divergent biology and clinical behaviour. An understanding of the regulatory circuitry governing the transcriptional landscapes of medulloblastoma subgroups, and how this relates to their respective developmental origins, is lacking. Here, using H3K27ac and BRD4 chromatin immunoprecipitation followed by sequencing (ChIP-seq) coupled with tissue-matched DNA methylation and transcriptome data, we describe the active cis-regulatory landscape across 28 primary medulloblastoma specimens. Analysis of differentially regulated enhancers and super-enhancers reinforced inter-subgroup heterogeneity and revealed novel, clinically relevant insights into medulloblastoma biology. Computational reconstruction of core regulatory circuitry identified a master set of transcription factors, validated by ChIP-seq, that is responsible for subgroup divergence, and implicates candidate cells of origin for Group 4. Our integrated analysis of enhancer elements in a large series of primary tumour samples reveals insights into cis-regulatory architecture, unrecognized dependencies, and cellular origins.

Originele taal-2Engels
Pagina's (van-tot)57-62
Aantal pagina's6
TijdschriftNature
Volume530
Nummer van het tijdschrift7588
DOI's
StatusGepubliceerd - 4 feb. 2016
Extern gepubliceerdJa

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