准骨髓中细胞衍生的IL-6来克服急性髓性白血病的化学阻力
Diyu Hou1, Danni Cai1, Wei Dai1
1Central Laboratory, Fujian Medical University Union Hospital, Fuzhou, China, Fuzhou, China.
Blood advances
|July 16, 2025
概括
介酶体 stromal 细胞 (MSCs) 通过分泌IL-6驱动急性髓性白血病 (AML) 的进展和化学抵抗. 从MSC中准IL-6可能会提高AML治疗疗效.
科学领域:
- 血液学 血液学 血液学
- 癌症生物学 癌症生物学
- 细胞生物学 细胞生物学
背景情况:
- 骨髓 (BM) 中升高的干白素-6 (IL-6) 与急性髓性白血病 (AML) 的预后不佳相关.
- 背后的IL-6升高的精确机制及其对AML化学抵抗的贡献尚未完全理解.
研究的目的:
- 调查骨髓中介细胞 (MSCs) 所分泌的IL-6在AML进展和化学抵抗中的作用.
- 探索MSC衍生IL-6对AML细胞中氧化化 (OXPHOS) 的影响及其对细胞arabine (Ara-C) 敏感性的影响.
主要方法:
- 使用Prrx1-Cre系统在已建立的AML小鼠模型中选择性地删除BM MSC中的Il6.
- 评估了AML细胞氧化酸化 (OXPHOS) 活性,疾病进展,以及对cytarabine (Ara-C) 的化学敏感性.
- 研究了外源复合IL-6和OXPHOS抑制剂IACS-010759对AML化学敏感性和线粒体转移的影响.
主要成果:
- 在AML BM微环境中,MSC被确定为IL-6的主要来源.
- 在MSC中删除Il6减少了AML细胞OXPHOS,减缓了疾病进展,并增加了对Ara-C.的敏感性.
- 用IACS-010759抑制OXPHOS模仿了Il6删除的化学敏感化作用;外源IL-6扭转了这些收益.
结论:
- 由MSC衍生的IL-6对AML的进展和化学抵抗至关重要,部分原因是通过线粒体转移促进AML细胞中的OXPHOS.
- 专门针对MSC中的IL-6提供了一个潜在的治疗策略,以提高AML治疗结果.
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