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JMJD1C forms condensates to facilitate a RUNX1-dependent gene expression program shared by multiple types of AML cells.
Protein & Cell ( IF 13.6 ) Pub Date : 2024-10-25 , DOI: 10.1093/procel/pwae059
Qian Chen,Saisai Wang,Juqing Zhang,Min Xie,Bin Lu,Jie He,Zhuoran Zhen,Jing Li,Jiajun Zhu,Rong Li,Pilong Li,Haifeng Wang,Christopher Vakoc,Robert G Roeder,Mo Chen

JMJD1C, a member of the lysine demethylase 3 (KDM3) family, is universally required for the survival of several types of acute myeloid leukemia (AML) cells with different genetic mutations, representing a therapeutic opportunity with broad application. Yet how JMJD1C regulates the leukemic programs of various AML cells is largely unexplored. Here we show that JMJD1C interacts with the master hematopoietic transcription factor RUNX1, which thereby recruits JMJD1C to the genome to facilitate a RUNX1-driven transcriptional program that supports leukemic cell survival. The underlying mechanism hinges on the long N-terminal disordered region of JMJD1C, which harbors two inseparable abilities: condensate formation and direct interaction with RUNX1. This dual capability of JMJD1C may influence enhancer-promoter contacts crucial for the expression of key leukemic genes regulated by RUNX1. Our findings demonstrate a previously unappreciated role for the non-catalytic function of JMJD1C in transcriptional regulation, underlying a mechanism shared by different types of leukemias.

中文翻译:


JMJD1C 形成凝聚物,以促进多种类型的 AML 细胞共享的 RUNX1 依赖性基因表达程序。



JMJD1C 是赖氨酸脱甲基酶 3 (KDM3) 家族的成员,是具有不同基因突变的几种急性髓性白血病 (AML) 细胞存活的普遍需求,代表了具有广泛应用的治疗机会。然而,JMJD1C 如何调节各种 AML 细胞的白血病程序在很大程度上尚未得到探索。在这里,我们表明 JMJD1C 与主造血转录因子 RUNX1 相互作用,从而将 JMJD1C 募集到基因组中,以促进支持白血病细胞存活的 RUNX1 驱动的转录程序。其潜在机制取决于 JMJD1C 的长 N 端无序区域,该区域具有两个不可分割的能力:凝聚物形成和与 RUNX1 的直接相互作用。JMJD1C 的这种双重能力可能会影响对 RUNX1 调控的关键白血病基因表达至关重要的增强子-启动子接触。我们的研究结果表明,JMJD1C 的非催化功能在转录调控中的作用以前未被重视,这是不同类型白血病共有的机制的基础。
更新日期:2024-10-25
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