ID1的非细胞自主功能通过从微环境中通过ANGPTL7促进AML的进展
Ming-Yue Fei1,2, Yong Wang1, Bin-He Chang1
1CAS Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China.
Blood
|June 15, 2023
概括
骨髓微环境中的DNA结合1 (ID1) 抑制剂促进急性髓性白血病 (AML) 的进展. 针对AML骨髓干细胞中的ID1提供了针对白血病根除的潜在治疗策略.
科学领域:
- 血液学 血液学 血液学
- 癌症生物学 癌症生物学
- 分子瘤学分子瘤学
背景情况:
- 骨髓微环境 (BMM) 极大地影响白血病干细胞 (LSCs).
- 了解LSCs的BMM调节是开发有效白血病治疗的关键.
- 在急性髓性白血病 (AML) BMM中,DNA结合1抑制剂 (ID1) 的作用尚不清楚.
研究的目的:
- 研究ID1在AML骨髓微环境中的作用.
- 阐明ID1影响AML进展的机制.
- 为了确定AML治疗的ID1途径中的潜在治疗点.
主要方法:
- 在AML患者骨髓样本中分析ID1表达.
- 调查ID1淘汰在介质干细胞对AML细胞增殖的影响.
- 使用AML小鼠模型来评估Id1损失对疾病进展的影响.
- ID1-相互作用组分析以识别相互作用蛋白质,包括RNF4.
- 评估Sp1及其目标Angptl7在AML进展中的作用.
主要成果:
- ID1在AML BMM中高度表达,特别是在骨髓中介质干细胞中,由AML细胞的BMP6诱导.
- 在介质细胞中淘汰ID1抑制AML细胞的增殖,并在体内损害AML的进展.
- ID1 与RNF4相互作用,减少SP1的泛化,导致SP1蛋白水平增加.
- 破坏ID1-RNF4相互作用会降低SP1水平,并延缓AML的进展.
- 血管蛋白类7 (Angptl7) 被确定为在Id1缺乏条件下由Sp1调节的关键差异表达因子.
结论:
- ID1在维持AML骨髓微环境和促进白血病进展方面发挥着至关重要的作用.
- ID1-RNF4-SP1轴是BMM中的AML调节的一个重要机制.
- 针对ID1或其与RNF4的相互作用,为AML提供了一个有前途的治疗策略.
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