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Runx3 Inactivation Is a Crucial Early Event in the Development of Lung Adenocarcinoma

  • You Soub Lee
  • , Jung Won Lee
  • , Ju Won Jang
  • , Xin Zi Chi
  • , Jang Hyun Kim
  • , Ying Hui Li
  • , Min Kyu Kim
  • , Da Mi Kim
  • , Byeung Sub Choi
  • , Eung Gook Kim
  • , Jin Haeng Chung
  • , Ok Jun Lee
  • , You Mie Lee
  • , Joo Won Suh
  • , Linda Shyue Huey Chuang
  • , Yoshiaki Ito
  • , Suk Chul Bae
  • Chungbuk National University
  • Seoul National University
  • Myongji University
  • National University of Singapore

Research output: Contribution to journalArticlepeer-review

110 Scopus citations

Abstract

Targeted inactivation of Runx3 in mouse lung induced mucinous and nonmucinous adenomas and markedly shortened latency of adenocarcinoma formation induced by oncogenic K-Ras. RUNX3 was frequently inactivated in K-RAS mutated human lung adenocarcinomas. A functional genetic screen of a fly mutant library and molecular analysis in cultured cell lines revealed that Runx3 forms a complex with BRD2 in a K-Ras-dependent manner in the early phase of the cell cycle; this complex induces expression of p14ARF/p19Arf and p21WAF/CIP. When K-Ras was constitutively activated, the Runx3-BRD2 complex was stably maintained and expression of both p14ARF and p21WAF/CIP was prolonged. These results provide a missing link between oncogenic K-Ras and the p14ARF-p53 pathway, and may explain how cells defend against oncogenic K-Ras.

Original languageEnglish
Pages (from-to)603-616
Number of pages14
JournalCancer Cell
Volume24
Issue number5
DOIs
StatePublished - 11 Nov 2013

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 3 - Good Health and Well-being
    SDG 3 Good Health and Well-being

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