针对WEE1激酶作为高风险和复发性急性淋巴细胞白血病的p53独立治疗策略
Hayden L Bell1, Helen J Blair1, Mankaran Singh1
1Wolfson Childhood Cancer Research Centre, Translation and Clinical Research Institute, Newcastle University Centre for Cancer,, Newcastle Upon Tyne, UK.
Cancer cell international
|September 15, 2023
概括
作为WEE1抑制剂的Adavosertib在复发性急性淋巴细胞白血病 (ALL) 中表现出强烈的抗白血病活性,无论TP53突变状态如何. 它与细胞激素协同作用,为高风险ALL提供了一个有前途的治疗策略.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 癌症治疗方法 癌症治疗方法
背景情况:
- 复发性急性淋巴细胞白血病 (ALL) 的结果仍然很差,需要新的治疗方法.
- 向性WEE1抑制的阿达沃谢蒂布是一种使癌细胞对DNA损伤剂敏感的策略,特别是在TP53突变瘤中.
- 在高风险和复发ALL中,包括TP53突变病例中,WEE1抑制的有效性需要进一步评估.
研究的目的:
- 调查阿达沃谢蒂布在复发性急性淋巴细胞白血病 (ALL) 中的抗白血病作用.
- 独立评估阿达沃谢蒂布的疗效,以及与常规化疗药物结合使用.
- 探索阿达沃谢蒂布 (adavosertib) 活动的机制基础及其作为治疗点的潜力.
主要方法:
- 利用复发TP53同源细胞模型和初级患者衍生的ALL样本 (n=27) 在一个ex vivo共同培养系统中.
- 量化了与标准复发的ALL药物的组合效应,使用了超越快乐的分析.
- 通过流细胞计和西部斑分析评估细胞周期变化和细胞亡.
主要成果:
- 在大多数高风险和复发ALL标本 (18/27) 中,在亚临床度下,无论TP53突变状态如何,Adavosertib都显示出强大的抗白血病活性.
- 阿达沃谢蒂布诱导了S相干扰,并通过协同性细胞毒性增强了传统化疗药物的疗效,特别是cytarabine.
- 与阿达沃谢蒂布和细胞氨基酸的联合治疗优先诱导细胞细胞死亡而不是细胞循环停止.
结论:
- 在复发的ALL细胞中,WEE1抑制在功能上很重要.
- WEE1代表了一个有希望的p53独立的治疗标,用于改善高风险和复发ALL的结果.
- 需要进一步在体内对阿达沃谢蒂布与细胞氨基酸结合进行进一步的研究.
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