在儿科中转录性改变和可向细胞因子信号依赖之间的发育相互作用 ETO2::GLIS2白血病
Verónica Alonso-Pérez1,2,3, Klaudia Galant1,2,3, Fabien Boudia4
1Commissariat À L'Energie Atomique Et Aux Energies Alternatives (CEA), Université Paris Cité, Institut National de La Santé Et de La Recherche Médicale (INSERM), Stabilité Génétique Cellules Souches Et Radiations, Fontenay-Aux-Roses, F-92260, France.
Molecular cancer
|September 20, 2024
概括
由ETO2::GLIS2驱动的儿科急性髓性白血病 (AML) 在胎儿细胞中更具攻击性. 用MEK和BCL2抑制剂向细胞因子通路为这种侵袭性白血病提供了一个有前途的治疗策略.
科学领域:
- 血液学 血液学 血液学
- 在瘤学瘤学.
- 发展生物学 发展生物学
背景情况:
- 像ETO2::GLIS2这样的融合瘤基因在儿科急性髓性白血病 (AML) 中很普遍.
- ETO2::GLIS2与预后不佳和多样化的骨髓状特征有关.
- 影响ETO2::GLIS2驱动的白血病发生的发育机制需要阐明.
研究的目的:
- 调查发育因素如何影响由ETO2::GLIS2.2驱动的人类白血病发生.
- 描述ETO2::GLIS2转换细胞的特征,并将其与患者样本进行比较.
- 开发一个临床前模型来测试治疗策略.
主要方法:
- 已建立的ETO2::GLIS2白血病发生模型使用人体造血干细胞/原生细胞 (HSPC) 中的lentiviral转导和CRISPR-Cas9.
- 进行了转变细胞的多组特征分析.
- 利用患者衍生的异种移植模型进行临床前药物测试.
主要成果:
- ETO2:GLIS2表达诱导胎儿HSPC中较高效的白血病发育,与出生后细胞相比.
- 细胞因子 (IL3,SCF) 对于带血衍生的白血发育至关重要,影响ETO2::GLIS2转化细胞状态.
- 结合MEK和BCL2抑制在体内显示出在降低白血病进展方面具有更高的疗效.
结论:
- 在ETO2::GLIS2 AML中,细胞因子环境和转录程序之间存在相互作用.
- 这种相互作用扩展了转变的发展窗口,并控制了细胞异质性.
- 向组合疗法 (MEK和BCL2抑制) 提供了一个新的治疗途径.
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