Nuclear organization in the 3D space of the nucleus - cause or consequence?

Nuclear organization in the 3D space of the nucleus - cause or consequence?
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DOI:
10.1016/j.gde.2009.07.005
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发表时间:
2009-10
影响因子:
4
通讯作者:
Rosenfeld, Michael G.
Rosenfeld, Michael G.
中科院分区:
生物学2区
文献类型:
--
作者:
Nunez, Esperanza;Fu, Xiang-Dong;Rosenfeld, Michael G.

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最近的证据表明,动态的三维基因组相互作用的细胞核发挥关键作用的基因表达调控。在这里,我们回顾了一系列最近的范式转换实验,突出了特定的基因网络的存在内的自组织空间的细胞核。这些基因网络,证明了长距离内和染色体间的相互作用,可以被认为是调控生物学程序的原因或后果。核结构的变化是核纤层蛋白病的标志,除了非编码RNA和DNA重复序列的潜在重要贡献外,还可能增强对肿瘤进展至关重要的基因组重排。几乎可以肯定的是,我们将见证越来越多的发现,揭示核结构在转录,DNA损伤/修复,衰老和疾病中的新作用。
Recent evidence suggests that dynamic three-dimensional genomic interactions in the nucleus exert critical roles in regulated gene expression. Here, we review a series of recent paradigm-shifting experiments that highlight the existence of specific gene networks within the self-organizing space of the nucleus. These gene networks, evidenced by long-range intra- and inter-chromosomal interactions, can be considered as the cause or consequence of regulatory biological programs. Changes in nuclear architecture are a hallmark of laminopathies and likely potentiate genome rearrangements critical for tumor progression, in addition to potential vital contribution of non-coding RNAs and DNA repeats. It is virtually certain that we will witness an ever-increasing rate of discoveries that uncover new roles of nuclear architecture in transcription, DNA damage/repair, aging and disease.
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