通过UHRF1-介导的表观遗传重编程调节糖解,促进B细胞急性淋巴细胞白血病的进展
Yan Huang1, Luting Luo1,2,3, Yangqi Xu1
1Fujian Medical University Union Hospital, Fuzhou, Fujian, P.R. China.
Cell death & disease
|April 29, 2025
概括
这项研究确定含有PHD和RING手指域1 (UHRF1) 的乌比奎丁类药物是复发性B细胞急性淋巴细胞白血病的关键驱动因素. 用UM164针对UHRF1显示出通过抑制癌细胞生长和促进细胞亡来改善预后的希望.
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:
- 成年B细胞急性淋巴细胞白血病 (B-ALL) 的预后不佳,特别是在复发/耐药病例中.
- 了解分子驱动因素对于开发有效疗法至关重要.
研究的目的:
- 调查含有乌比奎类PHD和RING指域1 (UHRF1) 在B-ALL进展中的作用.
- 阐明UHRF1在表观遗传和代谢重编程中的分子机制.
- 为了确定复发/耐药B-ALL的潜在治疗点.
主要方法:
- 单细胞转录组测序以识别关键分子参与者.
- 基因操纵 (删除/过度表达) 来研究功能影响.
- 对信号通路 (WNT5A-P38 MAPK-HK2) 和代谢产品 (乳酸盐) 的分析.
- 在体外和体内对向抑制剂UM164.4的评估.
主要成果:
- 在复发性/耐药性B-ALL中,UHRF1的调节显著上升,与糟糕的结果相关.
- UHRF1通过甲基化抑制SFRP5表达,激活WNT5A-P38 MAPK-HK2轴并增加乳酸的产生.
- 删除UHRF1或SFRP5的过度表达抑制了增殖,并诱导了细胞亡/细胞循环停止.
- 作为UHRF1抑制剂的UM164降低了P38酸化,HK2表达,乳酸生产,并表现出抗白血病活性.
结论:
- 在复发性/耐药性B-ALL的表观遗传和代谢重编程中,UHRF1起着至关重要的作用.
- UHRF1-SFRP5-WNT5A-P38 MAPK-HK2轴是B-ALL进展的一个关键调节器.
- UM164代表了对B-ALL的有希望的有针对性的治疗策略.
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