Histone Demethylase Jumonji D3 (JMJD3) as a Tumor Suppressor by Regulating p53 Protein Nuclear Stabilization

Chibawanye I. Ene, Lincoln Edwards, Gregory Riddick, Mehmet Baysan, Kevin D Woolard, Svetlana Kotliarova, Chen Lai, Galina Belova, Maggie Cam, Jennifer Walling, Ming Zhou, Holly Stevenson, Hong Sug Kim, Keith Killian, Timothy Veenstra, Rolanda Bailey, Hua Song, Wei Zhang, Howard A. Fine

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82 Scopus citations


Histone methylation regulates normal stem cell fate decisions through a coordinated interplay between histone methyltransferases and demethylases at lineage specific genes. Malignant transformation is associated with aberrant accumulation of repressive histone modifications, such as polycomb mediated histone 3 lysine 27 (H3K27me3) resulting in a histone methylation mediated block to differentiation. The relevance, however, of histone demethylases in cancer remains less clear. We report that JMJD3, a H3K27me3 demethylase, is induced during differentiation of glioblastoma stem cells (GSCs), where it promotes a differentiation-like phenotype via chromatin dependent (INK4A/ARF locus activation) and chromatin independent (nuclear p53 protein stabilization) mechanisms. Our findings indicate that deregulation of JMJD3 may contribute to gliomagenesis via inhibition of the p53 pathway resulting in a block to terminal differentiation.

Original languageEnglish (US)
Article numbere51407
JournalPLoS One
Issue number12
StatePublished - Dec 7 2012
Externally publishedYes

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Medicine(all)


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