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Involvement of RUNX and BRD Family Members in Restriction Point

Molecules and Cells 2019년 42권 12호 p.836 ~ 839
 ( Lee Jung-Won ) - Chungbuk National University College of Medicine Department of Biochemistry

 ( Park Tae-Geun ) - Chungbuk National University College of Medicine Department of Biochemistry
 ( Bae Suk-Chul ) - Chungbuk National University College of Medicine Department of Biochemistry

Abstract


A tumor is an abnormal mass of tissue that arises when cells divide more than they should or do not die when they should. The cellular decision regarding whether to undergo division or death is made at the restriction (R)-point. Consistent with this, an increasingly large body of evidence indicates that deregulation of the R-point decision-making machinery accompanies the formation of most tumors. Although the R-point decision is literally a matter of life and death for the cell, and thus critical for the health of the organism, it remains unclear how a cell chooses its own fate. Recent work demonstrated that the R-point constitutes a novel oncogene surveillance mechanism operated by R-point?associated complexes of which RUNX3 and BRD2 are the core factors (Rpa-RX3 complexes). Here, we show that not only RUNX3 and BRD2, but also other members of the RUNX and BRD families (RUNX1, RUNX2, BRD3, and BRD4), are involved in R-point regulation.

키워드

BRD; restriction point; RUNX
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