The Arf tumor suppressor protein inhibits Miz1 to suppress cell adhesion and induce apoptosis.
The Arf tumor suppressor protein inhibits Miz1 to suppress cell adhesion and induce apoptosis.
复制标题
DOI:
10.1083/jcb.200908103
复制
发表时间:
2010-03-22
期刊:
影响因子:
--
通讯作者:
Eilers M
中科院分区:
文献类型:
--
作者:
Herkert B;Dwertmann A;Herold S;Abed M;Naud JF;Finkernagel F;Harms GS;Orian A;Wanzel M;Eilers M
Arf assembles a complex containing Miz1, heterochromatin, and histone H3K3 to block expression of genes involved in cell adhesion and signal transduction. The resulting blockade of cell–cell and cell–matrix interactions facilitates elimination of cells carrying oncogenic mutations. Oncogenic stress induces expression of the alternate reading frame (Arf) tumor suppressor protein. Arf then stabilizes p53, which leads to cell cycle arrest or apoptosis. The mechanisms that distinguish both outcomes are incompletely understood. In this study, we show that Arf interacts with the Myc-associated zinc finger protein Miz1. Binding of Arf disrupts the interaction of Miz1 with its coactivator, nucleophosmin, induces the sumoylation of Miz1, and facilitates the assembly of a heterochromatic complex that contains Myc and trimethylated H3K9 in addition to Miz1. Arf-dependent assembly of this complex leads to the repression of multiple genes involved in cell adhesion and signal transduction and induces apoptosis. Our data point to a tumor-suppressive pathway that weakens cell–cell and cell–matrix interactions in response to expression of Arf and that may thereby facilitate the elimination of cells harboring an oncogenic mutation.
登录
查看更多内容
影响因子:
4.3
作者:
Kuo, Mei-Ling;den Besten, Willem;Sherr, Charles J.
通讯作者:
Sherr, Charles J.
影响因子:
5.3
作者:
Colombo, E;Bonetti, P;Pelicci, PG
通讯作者:
Pelicci, PG
影响因子:
8
作者:
Miao, L.;Song, Z.;Wu, M.
通讯作者:
Wu, M.
DOI:
10.1073/pnas.90.18.8392
发表时间:
1993-09-15
影响因子:
11.1
作者:
PEAR, WS;NOLAN, GP;BALTIMORE, D
通讯作者:
BALTIMORE, D
影响因子:
64.8
作者:
Qi, Y;Gregory, MA;Hann, SR
通讯作者:
Hann, SR