| Literature DB >> 26766587 |
BaoHan T Vo1, Elmar Wolf2, Daisuke Kawauchi1,3, Anneli Gebhardt2, Jerold E Rehg4, David Finkelstein5, Susanne Walz2,6, Brian L Murphy1, Yong Ha Youn7, Young-Goo Han7, Martin Eilers2,6, Martine F Roussel1.
Abstract
Four distinct subgroups of cerebellar medulloblastomas (MBs) differ in their histopathology, molecular profiles, and prognosis. c-Myc (Myc) or MycN overexpression in granule neuron progenitors (GNPs) induces Group 3 (G3) or Sonic Hedgehog (SHH) MBs, respectively. Differences in Myc and MycN transcriptional profiles depend, in part, on their interaction with Miz1, which binds strongly to Myc but not MycN, to target sites on chromatin. Myc suppresses ciliogenesis and reprograms the transcriptome of SHH-dependent GNPs through Miz1-dependent gene repression to maintain stemness. Genetic disruption of the Myc/Miz1 interaction inhibited G3 MB development. Target genes of Myc/Miz1 are repressed in human G3 MBs but not in other subgroups. Therefore, the Myc/Miz1 interaction is a defining hallmark of G3 MB development.Entities:
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Year: 2016 PMID: 26766587 PMCID: PMC4714043 DOI: 10.1016/j.ccell.2015.12.003
Source DB: PubMed Journal: Cancer Cell ISSN: 1535-6108 Impact factor: 31.743