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通过抑制ERAD诱导的蛋白静态崩,FOSL2驱动急性骨髓性白血病发生

Wangshi Li¹, Meiling Sun¹, Binyu Yao¹

¹Department of Critical Care Medicine, Department of Hematology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, 150001, China; NHC Key Laboratory of Cell Transplantation, Key Laboratory of Hepatosplenic Surgery of Ministry of Education, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, 150001, China.

Biochemical and biophysical research communications

|February 20, 2026

概括

FOSL2驱动急性髓性白血病 (AML) 的生存率和化学抵抗. 针对FOSL2及其相关的ERAD通路提供了一种新的治疗策略,以改善AML患者的治疗结果.

科学领域:

在瘤学瘤学.
分子生物学分子生物学
血液学血液学血液学

背景情况:

急性髓性白血病 (AML) 的治疗结果不佳,由于化学抵抗,复发率高.
标准的7+3化疗提供了有限的长期生存,需要新的分子点.
转录因子FOSL2在AML中的作用以前未被探索.

研究的目的:

确定和验证FOSL2作为AML中的关键瘤原因驱动因素.
研究FOSL2在AML中的作用背后的分子机制.
探索FOSL2作为AML的潜在治疗点.

主要方法:

对患者队列的生物信息分析以评估FOSL2表达和临床相关性.
在体外和体内使用shRNA介导的FOSL2沉默的功能研究.
转录基因分析和蛋白质基因分析以阐明FOSL2的下游效应.
彗星测试以评估DNA损伤.

主要成果:

过度表达FOSL2是AML患者不良结果的生物标志物.
FOSL2对于白血病细胞的存活,增殖和克隆性潜力至关重要.
减少FOSL2诱导细胞循环停止,细胞亡,骨髓分化,并使AML细胞对化疗敏感.
在异种移植模型中,FOSL2 Knockdown抑制瘤负担并延长存活时间.
由于FOSL2的枯竭,高调节HRD1,导致过度活化的ERAD,ER压力和DNA损伤.

结论:

在AML中,FOSL2是关键的瘤驱动因素,促进存活和化疗抵抗.
针对FOSL2-ERAD轴是一个有前途的AML治疗策略.
抑制FOSL2可增强对常规化疗和ER应激剂的敏感性.

关键词:

急性髓性白血病是什么?急性髓性白血病是什么?造成的DNA损伤是DNA损伤.欧洲议会 (ERAD) 委员会.这就是FOSL2的原因.人力资源发展计划1 HRD1

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