Runt-related transcription factor RUNX3 is a target of MDM2-mediated ubiquitination

Xin Zi Chi, Jiyeon Kim, Yong Hee Lee, Jung Won Lee, Kyeong Sook Lee, Wee Heejun, Wun Jae Kim, Woo Yoon Park, Byung Chul Oh, Gary S. Stein, Ito Yoshiaki, Andre J van Wijnen, Suk Chul Bae

Research output: Contribution to journalArticle

37 Citations (Scopus)

Abstract

The p14ARF-MDM2-p53 pathway constitutes an effective mechanism for protecting cells from oncogenic stimuli such as activated Ras and Myc. Importantly, Ras activation induces p14ARF andoft en occurs earlier than p53 inactivation during cancer development. Here, we show that RUNX3, a tumor suppressor in various tumors including stomach, bladder, colon, andlung, is stabilizedby Ras activation through the p14ARF-MDM2 signaling pathway. RUNX3 directly binds MDM2 through its Runt-related DNA-binding domain. MDM2 blocks RUNX3 transcriptional activity by interacting with RUNX3 through an acidic domain adjacent to the p53-binding domain of MDM2 andubiquitinat es RUNX3 on key lysine residues to mediate nuclear export and proteasomal degradation. Our data indicate that the lineage-specific tumor suppressor RUNX3 andthe ubiquitous p53 protein are both principal responders of the p14 ARF-MDM2 cell surveillance pathway that prevents pathologic consequences of abnormal oncogene activation.

Original languageEnglish (US)
Pages (from-to)8111-8119
Number of pages9
JournalCancer Research
Volume69
Issue number20
DOIs
StatePublished - Oct 15 2009
Externally publishedYes

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Tumor Suppressor Protein p14ARF
Ubiquitination
Transcription Factors
Neoplasms
Cell Nucleus Active Transport
Oncogenes
Lysine
Stomach
Colon
Urinary Bladder
DNA
Proteins

ASJC Scopus subject areas

  • Cancer Research
  • Oncology

Cite this

Chi, X. Z., Kim, J., Lee, Y. H., Lee, J. W., Lee, K. S., Heejun, W., ... Bae, S. C. (2009). Runt-related transcription factor RUNX3 is a target of MDM2-mediated ubiquitination. Cancer Research, 69(20), 8111-8119. https://doi.org/10.1158/0008-5472.CAN-09-1057

Runt-related transcription factor RUNX3 is a target of MDM2-mediated ubiquitination. / Chi, Xin Zi; Kim, Jiyeon; Lee, Yong Hee; Lee, Jung Won; Lee, Kyeong Sook; Heejun, Wee; Kim, Wun Jae; Park, Woo Yoon; Oh, Byung Chul; Stein, Gary S.; Yoshiaki, Ito; van Wijnen, Andre J; Bae, Suk Chul.

In: Cancer Research, Vol. 69, No. 20, 15.10.2009, p. 8111-8119.

Research output: Contribution to journalArticle

Chi, XZ, Kim, J, Lee, YH, Lee, JW, Lee, KS, Heejun, W, Kim, WJ, Park, WY, Oh, BC, Stein, GS, Yoshiaki, I, van Wijnen, AJ & Bae, SC 2009, 'Runt-related transcription factor RUNX3 is a target of MDM2-mediated ubiquitination', Cancer Research, vol. 69, no. 20, pp. 8111-8119. https://doi.org/10.1158/0008-5472.CAN-09-1057
Chi, Xin Zi ; Kim, Jiyeon ; Lee, Yong Hee ; Lee, Jung Won ; Lee, Kyeong Sook ; Heejun, Wee ; Kim, Wun Jae ; Park, Woo Yoon ; Oh, Byung Chul ; Stein, Gary S. ; Yoshiaki, Ito ; van Wijnen, Andre J ; Bae, Suk Chul. / Runt-related transcription factor RUNX3 is a target of MDM2-mediated ubiquitination. In: Cancer Research. 2009 ; Vol. 69, No. 20. pp. 8111-8119.
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