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WWP1-JARID1B轴维持了急性髓性白血病的化学抵抗性

Claudia Fierro¹, Sara Giovannini¹, Valeria Moriconi¹

¹Department of Experimental Medicine, Tor Vergata Oncoscience Research, University of Rome Tor Vergata, Rome 00133, Italy.

Proceedings of the National Academy of Sciences of the United States of America

|July 8, 2025

概括

在急性髓性白血病 (AML) 中,WWP1调节基因组脱甲基酶KDM5B (JARID1B). 无活化WWP1减少JARID1B,通过损害DNA修复,增强AML细胞对化疗的敏感性.

科学领域:

在瘤学瘤学.
分子生物学分子生物学
表观遗传学在表观遗传学中,表观遗传学是指表观遗传学.

背景情况:

WWP1与瘤发生有关.
修复DNA损伤对于癌细胞生存和治疗耐药性至关重要.

研究的目的:

在急性髓性白血病 (AML) 中识别WWP1基质.
研究KDM5B (JARID1B) 的WWP1-介导调节在AML化学敏感性中的作用.

主要方法:

蛋白质组分析以确定WWP1目标.
西方涂抹和无处不在测试以验证WWP1-JARID1B相互作用.
RNA测序和H3K4me3ChIP测序用于评估基因表达和表观遗传变化.
在AML细胞中进行DNA损伤和修复试验.

主要成果:

KDM5B (JARID1B) 被确定为一个WWP1基质.
WWP1通过K63结合的多基化稳定了JARID1B.
WWP1的失活导致JARID1B水平降低,H3K4me3的丰富度增加,以及JARID1B目标基因的转录激活.
WWP1的消耗损害了DNA损伤修复因子的招募,并降低了DNA修复效率.
具有WWP1无活化的AML细胞对化疗药物的敏感性增加.

结论:

在AML中,JARID1B是WWP1的真实基质.
WWP1调节JARID1B在染色质修饰和DNA损伤修复中的作用.
针对WWP1-JARID1B轴可能会增加AML的化学敏感性.

关键词:

修复DNA的修复DNA的修复急性骨髓性白血病 (AML) 是一种急性骨髓性白血病.蛋白质降解蛋白质降解蛋白质的无处不在化

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