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CTCF-RNA interactions orchestrate cell-specific chromatin loop organization

delete2025-11-26
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PRE
AI
K
Kimberly Lucero
S
Sungwook Han
P
Pin‐Yao Huang
X
Xiang Qiu
E
Esteban O. Mazzoni
D
Danny Reinberg *
DOI:10.1126/sciadv.ady5507delete
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摘要

摘要

En 中文
CCCTC结合因子(CTCF)对染色质组织至关重要。CTCF与内源性RNA相互作用,其ZF1 RNA结合区域(ΔZF1)的缺失会破坏小鼠胚胎干细胞(ESCs)中的染色质环。然而,在细胞分化过程中CTCF-ZF1与RNA相互作用的生物学意义尚不清楚。我们采用ESC向神经祖细胞(NPC)分化的模型,证明CTCF-ZF1对于维持细胞类型特异的染色质环至关重要。CTCF-ΔZF1的表达导致染色质环破坏以及环内基因表达失调,尤其是那些参与神经元发育和功能的基因。我们鉴定出NPC特异性的、与CTCF-ZF1相互作用的RNA。两种编码RNA Podxl和Grb10的截短体破坏了同源染色质环,这与在表达CTCF-ΔZF1的NPCs中观察到的破坏类似。这些发现强调了CTCF-ZF1与RNA相互作用在维持细胞特异基因组结构和细胞身份方面的内在重要性。

期刊

Science Advances 封面图
Science Advances
IF:
12.5
论文数:
2.1W
被引数:
18.1W

机构

N
new york university langone medical center
学者数:
85
论文数: 35
被引数: 0
引用论文

引用论文

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