Cell Reports (Jul 2017)

DOC1-Dependent Recruitment of NURD Reveals Antagonism with SWI/SNF during Epithelial-Mesenchymal Transition in Oral Cancer Cells

  • Adone Mohd-Sarip,
  • Miriam Teeuwssen,
  • Alice G. Bot,
  • Maria J. De Herdt,
  • Stefan M. Willems,
  • Robert J. Baatenburg de Jong,
  • Leendert H.J. Looijenga,
  • Diana Zatreanu,
  • Karel Bezstarosti,
  • Job van Riet,
  • Edwin Oole,
  • Wilfred F.J. van Ijcken,
  • Harmen J.G. van de Werken,
  • Jeroen A. Demmers,
  • Riccardo Fodde,
  • C. Peter Verrijzer

DOI
https://doi.org/10.1016/j.celrep.2017.06.020
Journal volume & issue
Vol. 20, no. 1
pp. 61 – 75

Abstract

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The Nucleosome Remodeling and Deacetylase (NURD) complex is a key regulator of cell differentiation that has also been implicated in tumorigenesis. Loss of the NURD subunit Deleted in Oral Cancer 1 (DOC1) is associated with human oral squamous cell carcinomas (OSCCs). Here, we show that restoration of DOC1 expression in OSCC cells leads to a reversal of epithelial-mesenchymal transition (EMT). This is caused by the DOC1-dependent targeting of NURD to repress key transcriptional regulators of EMT. NURD recruitment drives extensive epigenetic reprogramming, including eviction of the SWI/SNF remodeler, formation of inaccessible chromatin, H3K27 deacetylation, and binding of PRC2 and KDM1A, followed by H3K27 methylation and H3K4 demethylation. Strikingly, depletion of SWI/SNF mimics the effects of DOC1 re-expression. Our results suggest that SWI/SNF and NURD function antagonistically to control chromatin state and transcription. We propose that disturbance of this dynamic equilibrium may lead to defects in gene expression that promote oncogenesis.

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