Stabilization of HDAC1 via TCL1-pAKT-CHFR axis is a key element for NANOG-mediated multi-resistance and stem-like phenotype in immune-edited tumor cells

Seon Rang Woo, Hyo Jung Lee, Se Jin Oh, Suyeon Kim, Sang Hyo Park, Jaeyoon Lee, Kwon Ho Song, Tae Woo Kim

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Cancer immunoediting enriches NANOG expression in tumor cells, resulting in multi-drug resistance and stem-like phenotypes. We previously demonstrated that these NANOG-associated phenotypes are promoted through HDAC1 transcriptional upregulation. In this study, we identified that NANOG also contributes to the stabilization of HDAC1 protein through the AKT signaling pathway. NANOG-AKT axis leads to phosphor-dependent inactivation of CHFR, an E3 ligase for HDAC1 protein, and thereby inhibiting the ubiquitin-mediated degradation of HDAC1. Furthermore, AKT inhibition disrupts HDAC1 WT-mediated phenotypes but had no effect on the phenotypes mediated by HDAC1 FM, a mutant that is unable to interact with CHFR. Critically, we applied a catalytic dead mutant, HDAC1-H141A, to uncover that HDAC1 confers immune-resistance, drug-resistance and stem-like phenotype in tumor cells through its catalytic activity. Collectively, our results establish a firm molecular link in immune-edited tumor cells among NANOG, AKT, CHFR, and HDAC1, identifying HDAC1 as a molecular target in controlling NANOGHIGH immune-refractory cancer.

Original languageEnglish
Pages (from-to)1812-1818
Number of pages7
JournalBiochemical and Biophysical Research Communications
Volume503
Issue number3
DOIs
Publication statusPublished - 2018 Sep 10

Keywords

  • Chemoresistance
  • CHFR
  • HDAC1
  • Immuneresistance
  • Immunotherapy
  • NANOG

ASJC Scopus subject areas

  • Biophysics
  • Biochemistry
  • Molecular Biology
  • Cell Biology

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