奥西默提尼布与CD34共同结合,并消除髓性白血病干细胞/原始细胞
Li Xia1,2, Jie-Yang Liu1, Meng-Ying Yang1
1Institute of Dermatology, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
Cancer research
|December 14, 2023
概括
奥西默提尼布通过与CD34结合选择性地杀死白血病干细胞,为急性髓性白血病 (AML) 和慢性髓性白血病 (CML) 提供了新的治疗方法. 这种EGFR独立的方法对CD34表达高的患者来说是有前途的.
科学领域:
- 血液学 血液学 血液学
- 在瘤学瘤学.
- 分子生物学分子生物学
背景情况:
- 奥西默提尼布是一种EGFR抑制剂,用于治疗非小细胞肺癌.
- 以前的EGFR抑制剂在急性髓性白血病 (AML) 中表现出有限的疗效.
- CD34表达在AML细胞中升高,与预后不佳有关.
研究的目的:
- 研究奥西默提尼布在EGFR阴性AML和慢性髓性白血病 (CML) 的疗效.
- 为了阐明骨髓性白血病中osimertinib诱导的细胞死亡的机制.
- 评估 osimertinib 在 CD34 表达性髓性白血病中的治疗潜力.
主要方法:
- 评估奥西默蒂尼布对AML和CML中CD34+和CD34-细胞的影响.
- 研究 osimertinib 对 CD34 的共价结合及其对 Src 家族激酶 (SFK) 和 STAT3.3 的影响.
- 在AML患者样本中利用基因组,转录组和蛋白质组分析.
- 在AML患者衍生的异种移植模型中测试osimertinib.
- 在CD34高AML的患者中进行临床评估.
主要成果:
- 奥西默提尼布在CD34+白血病干细胞/原始细胞中选择性诱导了亡.
- 对CD34的共价结合和SFK/STAT3的抑制介导了 osimertinib的细胞杀伤作用.
- 在AML患者中高CD34表达与不良预后相关.
- 奥西默提尼布在临床前模型和同情使用患者中显示出治疗反应CD34高AML,节省正常的CD34+细胞.
结论:
- 奥西默提尼布通过EGFR独立的机制证明了对CD34高的AML和CML的治疗潜力.
- 向CD34+白血病干细胞是一个可行的治疗策略.
- 奥西默提尼布为特定的髓性白血病亚型提供了一种新的治疗选择.
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