Retinoblastoma tumor suppressor protein-dependent methylation of histone H3 lysine 27 is associated with irreversible cell cycle exit.
Retinoblastoma tumor suppressor protein-dependent methylation of histone H3 lysine 27 is associated with irreversible cell cycle exit.
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视网膜母细胞瘤抑制组蛋白H3赖氨酸27的蛋白质依赖性甲基化与不可逆的细胞周期出口有关。
DOI:
10.1083/jcb.200705051
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发表时间:
2007-12-31
影响因子:
7.8
通讯作者:
Dynlacht, Brian David
中科院分区:
文献类型:
--
作者:
Blais, Alexandre;van Oevelen, Chris J. C.;Margueron, Raphael;Acosta-Alvear, Diego;Dynlacht, Brian David
The retinoblastoma tumor suppressor protein (pRb) is involved in mitotic exit, promoting the arrest of myoblasts, and myogenic differentiation. However, it is unclear how permanent cell cycle exit is maintained in differentiated muscle. Using RNA interference, expression profiling, and chromatin immunoprecipitations, we show that pRb is essential for cell cycle exit and the differentiation of myoblasts and is also uniquely required to maintain this arrest in myotubes. Remarkably, we also uncover a function for the pRb-related proteins p107 and p130 as enforcers of a G2/M phase checkpoint that prevents progression into mitosis in cells that have lost pRb. We further demonstrate that pRb effects permanent cell cycle exit in part by maintaining trimethylation of histone H3 lysine 27 (H3K27) on cell cycle genes. H3K27 trimethylation silences other genes, including Cyclin D1, in a pRb-independent but polycomb-dependent manner. Thus, our data distinguish two distinct chromatin-based regulatory mechanisms that lead to terminal differentiation.
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影响因子:
64.5
作者:
GU, W;SCHNEIDER, JW;NADALGINARD, B
通讯作者:
NADALGINARD, B
DOI:
10.1016/j.bbrc.2006.04.095
发表时间:
2006-06-23
影响因子:
3.1
作者:
Kim, Sung Mi;Kee, Hae Jin;Seo, Sang Beom
通讯作者:
Seo, Sang Beom
影响因子:
5.3
作者:
Balciunaite, E;Spektor, A;Dynlacht, BD
通讯作者:
Dynlacht, BD
影响因子:
16
作者:
Benevolenskaya, EV;Murray, HL;Kaelin, WG
通讯作者:
Kaelin, WG
影响因子:
10.5
作者:
Hurford, RK;Cobrinik, D;Dyson, N
通讯作者:
Dyson, N