在BTK抑制剂治疗后,抵抗机制和慢性淋巴细胞白血病的方法
Christine Gruessner1, Adrian Wiestner1, Clare Sun1
1Hematology Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, USA.
在白血病中对布鲁顿氨酸激酶 (BTK) 抑制剂的耐药性是常见的. 本综述探讨了BTK抑制剂耐药性机制和新疗法,包括BTK降解和下游信号抑制剂.
科学领域:
- 在瘤学瘤学.
- 血液学 血液学 血液学
- 分子生物学分子生物学
背景情况:
- 布鲁顿氨酸激酶 (BTK) 对于B细胞受体信号传递至关重要,也是慢性淋巴细胞白血病的标.
- 联BTK抑制剂 (cBTKi) 喜欢ibrutinib的目标残留物C481,但通过BTK或PLCG2突变产生耐药性.
- 新兴的抵抗机制包括非C481 BTK突变,BTK支架功能,绕道通路和瘤微环境.
研究的目的:
- 审查慢性淋巴细胞白血病中对BTK抑制剂 (BTKi) 耐药性的机制.
- 讨论BTKi治疗进展的患者的治疗策略.
- 突出新兴的方法,如BTK降解和下游信号的准.
主要方法:
- 对BTK抑制剂耐药性研究的文献综述.
- 对赋予耐药性的基因突变 (例如BTK,PLCG2) 的分析.
- 评估超越传统BTKi的新型治疗策略.
主要成果:
- 对cBTKi的耐药性通常是由BTK或PLCG2.2的突变驱动的.
- 非共价BTKi (pirtobrutinib) 可以克服一些耐药性,但面临新的突变.
- 比特基基降解和下游途径抑制对抗耐药突变有希望.
结论:
- 抗BTKi耐药性是多因素的,涉及遗传突变和瘤微环境.
- 下一代疗法,包括BTK降解剂和下游抑制剂,对于克服耐药性至关重要.
- 需要进一步的研究来开发BTKi抗性白血病的持久治疗策略.
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