通过诱导核应激和线粒体功能障碍,FTO抑制抑制B细胞急性淋巴细胞白血病的进展
Xinxin Li1, Ziyan Yang2, Siyong Huang3
1Institute of Medical Research, Northwestern Polytechnical University, Xi'an, 710114, China; Shenzhen Research Institute of Northwestern Polytechnical University, Shenzhen, 5180057, China.
Free radical biology & medicine
|July 7, 2025
概括
脂肪质量和与肥胖相关的蛋白质 (FTO) 通过调节核糖体生物生成来促进B细胞急性淋巴细胞白血病 (B-ALL). 用多克索鲁比辛准FTO为B-ALL提供了一个潜在的治疗策略,抑制癌症的进展.
科学领域:
- 血液学 血液学 血液学
- 分子生物学分子生物学
- 癌症研究 癌症研究
背景情况:
- B细胞急性淋巴细胞白血病 (B-ALL) 是一种严重的血液性恶性瘤.
- 越来越多的RNA修饰,特别是N6-甲基氨酸 (m6A),因其在B-ALL进展和药物耐药性中的作用而越来越受认可.
研究的目的:
- 研究脂肪质量和与肥胖相关的蛋白质 (FTO) 在B-ALL中的作用.
- 探索针对B-ALL中FTO的治疗潜力.
主要方法:
- 在B-ALL患者样本和细胞系中评估FTO表达.
- 使用了FTO倒置和过度表达的体外和体外模型.
- 研究了FTO对核糖体生物发生,细胞循环,细胞亡和瘤发生的影响.
- 研究了FTO抑制 (FB23-2) 和Doxorubicin的协同效应.
主要成果:
- 在复发性/耐药性B-ALL中FTO的表达很高,并促进B-ALL细胞的增殖和瘤发生.
- FTO调节细胞质和线粒体核糖体生物发生,并与核应激和线粒体功能障碍有关.
- 通过抵消YTHDF2介导的mRNA衰变,FTO可以提高关键的核糖体蛋白 (RPS15a,RPL9,MRPS16,MRPL44) 的调节.
- 在体内,FTO抑制与多克索鲁比协同作用,诱导B-ALL细胞死亡并抑制瘤进展.
结论:
- 在B-ALL.中,FTO充当关键的RNA表观遗传促进剂.
- 针对性FTO阻塞与多克索鲁比结合,通过抑制核糖体生物发生,为B-ALL提供了一个有希望的治疗策略.
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