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细胞外矩阵拓学驱动在神经母细胞瘤中上腺对介质细胞过渡的作用
Antonios Chronopoulos1, Chandra Kaladhar Vemula1, Vic Zamloot1
1Cancer and Blood Disease Institute, Children's Hospital Los Angeles, 4650 Sunset Blvd, Los Angeles, California, 90027, USA.
Advanced materials (Deerfield Beach, Fla.)
|June 25, 2025
概括
细胞外矩阵 (ECM) 地形驱动神经母细胞瘤 (NB) 细胞过渡到介质细胞 (MES) 身份,促进转移和治疗耐药性. 针对ECM地形可能为高风险的NB提供新的治疗策略.
科学领域:
- 在瘤学瘤学.
- 生物材料科学 生物材料科学
- 细胞生物学 细胞生物学
背景情况:
- 神经母细胞瘤 (NB) 是一种常见的儿科癌症,其特点是瘤内异质性.
- NB细胞存在于上腺素 (ADRN) 和介质细胞 (MES) 状态,其中MES细胞与转移和治疗抵抗有关.
- 瘤微环境 (TME) 中的细胞外基质 (ECM) 影响癌症的进展.
研究的目的:
- 研究ECM拓在驱动神经母细胞瘤中ADRN到MES过渡 (AMT) 的作用.
- 阐明ECM驱动的AMT背后的分子机制.
- 探索潜在的TME向治疗策略,用于高风险的NB.
主要方法:
- 使用纳米制造的生物材料模仿对齐的ECM地形.
- 在生物材料上培养的NB细胞中分析了转录和表观遗传变化.
- 评估了与MES身份相关的表型变化.
- 研究了Rho相关激酶和YAP信号通路的参与.
主要成果:
- 高风险的NB瘤比低风险的瘤具有更多的地形对齐的ECM纤维.
- 模仿对齐的ECM地形诱导了AMT,增强了MES特征.
- ECM地形引发了转录,表观遗传和信号通路变化 (Rho-kinase, YAP).
- 确定了ECM地形作为NB细胞重编程的驱动因素.
结论:
- ECM拓是一个新的机制,驱动神经母细胞瘤中的AMT.
- 准ECM地形和相关的信号通路是一个潜在的治疗策略.
- 通过TME调制抑制MES细胞可以改善NB的临床结果.
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