氧化抵抗1对慢性髓性白血病疾病进展的影响
Weiqi Huang1, Bin Liu1, Liping Hu1
1The Feinberg School of Medicine, Northwestern University, Chicago, United States of America.
JCI insight
|November 25, 2025
概括
氧化抵抗1 (Oxr1) 影响慢性髓性白血病 (CML) 的进展. 异常短的Oxr1表达加速了CML和DNA损伤,而长的Oxr1可能会阻止它.
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:
- 氨酸激酶抑制剂 (TKI) 改善了慢性髓性白血病 (CML) 的存活率,但TKI耐药性影响了约30%的患者.
- 氧化抵抗1 (Oxr1) 调节抗氧化途径,解毒活性氧物种 (ROS).
研究的目的:
- 研究Oxr1异型在CML进展和TKI耐药性中的作用.
- 确定Oxr1如何影响CML中的ROS积累和DNA损伤.
主要方法:
- 从CML小鼠和人类样本中分析血液造血干细胞和原生细胞 (HSPC) 中Oxr1表达.
- 在小鼠模型中检查Oxr1敲击对CML进展和DNA损伤的影响.
- 在ROS排毒中研究长和短Oxr1异型之间的功能差异.
主要成果:
- 在CML HSPC中,oxr1表达增加,在TKI缓解期间下降,并在复发期间上升.
- 在CML复发期间,短Oxr1异型表达增加,而长Oxr1则减少.
- Oxr1 knockdown加速了CML的进展和增加了DNA损伤,包括BCR::ABL1突变.
结论:
- 长Oxr1可以排毒ROS,从而有可能减少CML的突变发生.
- 异常短的Oxr1表达表现起到主导的负面作用,增强CML进展和TKI抗性.
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