The H3K4-methyl epigenome regulates MLL leukemia stem cell oncogenic potential
收藏干细胞与再生医学数据中心2022-02-20 更新2024-03-06 收录
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资源简介：
The genetic programs that maintain leukemia stem cell (LSC) self-renewal and oncogenic potential have been well defined, however the epigenetic landscape that determines their cellular identity and functionality has not been established. We report that LSCs in MLL-associated leukemia are maintained in an epigenetic state defined by relative genome-wide high-level H3K4me3 methylation and low level H3K79me2. LSC differentiation is associated with dynamic reversal of these broad epigenetic profiles and concomitant down-regulation of the LSC maintenance transcriptional program. LSCs also share with embryonic stem cells a large subset of genes with bivalent histone marks related to embryonic development. The histone demethylase KDM5B negatively regulates MLL-induced leukemogenesis demonstrating the crucial role of the H3K4 global methylome for determining leukemia stem cell fate.
提供机构：
Stanford University
创建时间：
2022-02-20
