Locking the genome: nuclear organization and cell fate.

Locking the genome: nuclear organization and cell fate.
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DOI:
10.1016/j.gde.2011.01.023
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发表时间:
2011-04
影响因子:
4
通讯作者:
Gasser, Susan M.
Gasser, Susan M.
中科院分区:
生物学2区
文献类型:
--
作者:
Meister, Peter;Mango, Susan E.;Gasser, Susan M.

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多能或全能细胞分化成各种分化的细胞类型伴随着基因表达模式的限制、组蛋白和DNA甲基化的改变以及真核和异染色质结构域的总核组织的变化。最近的几项研究将组蛋白修饰的全基因组作图与基因表达的变化相结合。其他研究已经检查了在转录诱导或抑制后组织特异性基因的亚核定位的变化。在这里,我们总结了有趣的相关性的三种现象,这表明在某些情况下,因果关系可能存在。
The differentiation of pluripotent or totipotent cells into various differentiated cell types is accompanied by a restriction of gene expression patterns, alteration in histone and DNA methylation, and changes in the gross nuclear organization of eu- and heterochromatic domains. Several recent studies have coupled genome-wide mapping of histone modifications with changes in gene expression. Other studies have examined changes in the subnuclear positioning of tissue-specific genes upon transcriptional induction or repression. Here we summarize intriguing correlations of the three phenomena, which suggest that in some cases causal relationships may exist.
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