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2015 ; 518
(7539
): 331-6
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Chromatin architecture reorganization during stem cell differentiation
#MMPMID25693564
Dixon JR
; Jung I
; Selvaraj S
; Shen Y
; Antosiewicz-Bourget JE
; Lee AY
; Ye Z
; Kim A
; Rajagopal N
; Xie W
; Diao Y
; Liang J
; Zhao H
; Lobanenkov VV
; Ecker JR
; Thomson JA
; Ren B
Nature
2015[Feb]; 518
(7539
): 331-6
PMID25693564
show ga
Higher-order chromatin structure is emerging as an important regulator of gene
expression. Although dynamic chromatin structures have been identified in the
genome, the full scope of chromatin dynamics during mammalian development and
lineage specification remains to be determined. By mapping genome-wide chromatin
interactions in human embryonic stem (ES) cells and four human ES-cell-derived
lineages, we uncover extensive chromatin reorganization during lineage
specification. We observe that although self-associating chromatin domains are
stable during differentiation, chromatin interactions both within and between
domains change in a striking manner, altering 36% of active and inactive
chromosomal compartments throughout the genome. By integrating chromatin
interaction maps with haplotype-resolved epigenome and transcriptome data sets,
we find widespread allelic bias in gene expression correlated with allele-biased
chromatin states of linked promoters and distal enhancers. Our results therefore
provide a global view of chromatin dynamics and a resource for studying
long-range control of gene expression in distinct human cell lineages.
|*Cell Differentiation/genetics
[MESH]
|*Chromatin Assembly and Disassembly/genetics
[MESH]