作者
Mark W Zimmerman, Adam D Durbin, Shuning He, Felix Oppel, Hui Shi, Ting Tao, Zhaodong Li, Alla Berezovskaya, Yu Liu, Jinghui Zhang, Richard A Young, Brian J Abraham, A Thomas Look
发表日期
2021/10/1
期刊
Science Advances
卷号
7
期号
43
页码范围
eabe0834
出版商
American Association for the Advancement of Science
简介
Neuroblastoma cell identity depends on a core regulatory circuit (CRC) of transcription factors that collaborate with MYCN to drive the oncogenic gene expression program. For neuroblastomas dependent on the adrenergic CRC, treatment with retinoids can inhibit cell growth and induce differentiation. Here, we show that when MYCN-amplified neuroblastoma cells are treated with retinoic acid, histone H3K27 acetylation and methylation become redistributed to decommission super-enhancers driving the expression of PHOX2B and GATA3, together with the activation of new super-enhancers that drive high levels of MEIS1 and SOX4 expression. These findings indicate that treatment with retinoids can reprogram the enhancer landscape, resulting in down-regulation of MYCN expression, while establishing a new retino-sympathetic CRC that causes proliferative arrest and sympathetic differentiation. Thus, we …
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