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Oncogenic RUNX3: A Link between p53 Deficiency and MYC Dysregulation

Molecules and Cells 2020년 43권 2호 p.176 ~ 181
 ( Date Yuki ) - Nagasaki University Graduate School of Biomedical Sciences Department of Molecular Bone Biology

 ( Ito Kosei ) - Nagasaki University Graduate School of Biomedical Sciences Department of Molecular Bone Biology

Abstract


The RUNX transcription factors serve as master regulators of development and are frequently dysregulated in human cancers. Among the three family members, RUNX3 is the least studied, and has long been considered to be a tumor-suppressor gene in human cancers. This idea is mainly based on the observation that RUNX3 is inactivated by genetic/epigenetic alterations or protein mislocalization during the initiation of tumorigenesis. Recently, this paradigm has been challenged, as several lines of evidence have shown that RUNX3 is upregulated over the course of tumor development. Resolving this paradox and understanding how a single gene can exhibit both oncogenic and tumor-suppressive properties is essential for successful drug targeting of RUNX. We propose a simple explanation for the duality of RUNX3: p53 status. In this model, p53 deficiency causes RUNX3 to become an oncogene, resulting in aberrant upregulation of MYC.

키워드

c-Myc; p53; RUNX3
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