Abstract:
:Chromatin conformation plays a key role in regulating gene expression and controlling cell differentiation. However, the whole-genome chromatin conformation changes that occur during leukemia cell differentiation are poorly understood. Here, we characterized the changes in chromatin conformation, histone states, chromatin accessibility, and gene expression using an all-trans retinoic acid (ATRA)-induced HL-60 cell differentiation model. The results showed that the boundaries of topological associated domains (TADs) were stable during differentiation; however, the chromatin conformations within several specific TADs were obviously changed. By combining H3K4me3, H3K27ac, and Hi-C signals, we annotated the differential gene-regulatory chromatin interactions upon ATRA induction. The gains and losses of the gene-regulatory chromatin interactions are significantly correlated with gene expression and chromatin accessibility. Finally, we found that the loss of GATA2 expression and DNA binding are crucial for the differentiation process, and changes in the chromatin structure around the GATA2 regulate its expression upon ATRA induction. This study provided both statistical insights and experimental details regarding the relationship between chromatin conformation changes and transcription regulation during leukemia cell differentiation, and the results suggested that the chromatin conformation is a new type of potential drug target for cancer therapy.
journal_name
Cell Death Disjournal_title
Cell death & diseaseauthors
Li Y,He Y,Liang Z,Wang Y,Chen F,Djekidel MN,Li G,Zhang X,Xiang S,Wang Z,Gao J,Zhang MQ,Chen Ydoi
10.1038/s41419-017-0173-6subject
Has Abstractpub_date
2018-02-08 00:00:00pages
200issue
2issn
2041-4889pii
10.1038/s41419-017-0173-6journal_volume
9pub_type
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