在慢性髓性白血病中对伊马替尼的干细胞反应
Rachid Lahlil1, Anne Aries1, Maurice Scrofani1
1Institut de Recherche en Hématologie et Transplantation (IRHT), Hôpital du Hasenrain, 87 Avenue d'Altkirch, 68100 Mulhouse, France.
International journal of molecular sciences
|December 9, 2023
概括
慢性骨髓性白血病 (CML) 中的非常小的胚胎样干细胞 (VSEL) 耐受意马替尼甲酸盐 (IM) 治疗. 通过miRNA途径准这些白血病VSEL为IM抗性CML提供了一个新的治疗策略.
科学领域:
- 血液学 血液学 血液学
- 癌症生物学 癌症生物学
- 干细胞生物学 干细胞生物学
背景情况:
- 慢性髓性白血病 (CML) 的特征是BCR-ABL融合基因.
- 铁氨酸激酶抑制剂 (TKIs),如伊马替尼甲酸 (IM),改善了CML的结果.
- IM耐药性,通常是由于白血病干细胞 (LSCs) 的遗传改变,仍然是一个临床挑战.
研究的目的:
- 研究非常小的胚胎样干细胞 (VSELs) 在CML中的作用及其对IM的抗性.
- 探索通过MI耐性CML的miRNA途径准VSEL的潜力.
主要方法:
- 在CML患者中VSELs表型的表征.
- 在白血病VSEL和HSC中对IM治疗的反应中评估亡和扩散.
- 在白血病VSEL中分析miRNA表达.
主要成果:
- 来自CML患者的白血病VSEL (LVSEL) 携带BCR-ABL,并且比白血病HSC对IM诱导的亡不那么敏感.
- 在LHSCs中,IM治疗更有效地降低了LHSCs中的增殖和Ki67mRNA表达,而不是LVSELs.
- 在LVSEL中,miR-451,miR-126和miR-21的表达发生了变化,这表明它们与IM不敏感有关.
结论:
- 白血病VSELs有助于IM在CML中的耐药性.
- 针对IM耐性CML白血病干细胞中的miRNA通路是一个有前途的治疗途径.
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