微环境细胞相互作用对于维持髓纤维化恶性干细胞的功能至关重要
Min Lu1, Md Babu Mia1, Lijuan Xia2
1Icahn School of Medicine at Mount Sinai, New York, New York, United States.
Blood
|December 15, 2025
概括
癌症干细胞 (CSCs) 通过与瘤微环境 (TME) 相互作用来驱动癌症. 这项研究模拟了髓纤维化 (MF) 干细胞/TME相互作用,揭示了关键的促炎反应,并维持了恶性克隆的主导地位.
科学领域:
- 血液学 血液学 血液学
- 癌症生物学 癌症生物学
- 干细胞研究 干细胞研究
背景情况:
- 癌症进展受到癌症干细胞 (CSC) 和瘤微环境 (TME) 之间的相互作用的影响.
- 骨髓纤维化 (MF) 是由干细胞驱动的骨髓增殖性瘤,其中CSC与TME相互作用.
研究的目的:
- 开发一种体内癌症干细胞/TME相互作用的模型.
- 研究恶性MF血造干细胞和原生细胞 (HSPCs) 与非恶性TME细胞 (内皮细胞 (ECs) 和介质细胞 (MSCs)) 相互作用的功能后果.
主要方法:
- 与正常的捐赠EC和MSC共同种植MFHSPC,以创建一个三种植系统.
- 将共同培养的MF HSPC移植到免疫缺陷小鼠中,以评估MF表型复合.
- 共同培养的细胞的转录造型,以确定分子变化.
主要成果:
- 三种培养系统促进了恶性克隆的主导地位和MF HSPC的持久性.
- 在移植后,共同培养的MF HSPC重复了MF表型,包括脊髓巨变和骨髓纤维化.
- 转录造型显示了MFHSPC,MSC和EC的重编程,并显着提高了促炎途径的调节.
结论:
- 这种人类多细胞模型有效地展示了MF HSPCs和TME细胞之间的多方向相互作用.
- 这些相互作用对于维持功能充分的MF干细胞至关重要.
- 这项研究强调了促炎反应在由CSC/TME相互作用驱动的MF病变发生中的关键作用.
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