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河马通路抑制重编程TNFα主导的质母细胞瘤细胞外囊泡转录载荷驱动介质细胞干/细胞血管基因模仿

Rosalie Zilinski¹, Angélique Sabaoth Konan¹, Alain Zgheib¹

¹Laboratoire d'Oncologie Moléculaire, Département de Chimie, Université du Québec à Montréal, Montreal, QC, Canada.

Cell communication and signaling : CCS

|October 15, 2025

概括

河马通路抑制剂VT107减少了质母细胞瘤细胞外囊泡 (EVs) 中的促炎载荷,可能克服治疗阻力. 这项研究研究了VT107对由瘤亡因子-α-primed细胞分泌的EV的影响.

科学领域:

在瘤学瘤学.
分子生物学分子生物学
细胞生物学细胞生物学

背景情况:

质母细胞瘤 (GBM) 细胞外囊泡 (EVs) 通过运输生物分子来驱动瘤进展和治疗阻力.
河马通路抑制剂在调节GBM-EV货物的作用仍然在很大程度上是未知的.
瘤坏死因子-α (TNFα) 启动GBM细胞,影响瘤微环境 (TME).

研究的目的:

调查Hippo路径抑制剂对GBM衍生电动汽车货物的影响.
确定VT107是否可以抑制GBM电动车中的TNFα诱导的促炎性货物.
评估VT107处理的GBM EVs对中细胞干/细胞 (MSC) 血管仿真 (VM) 的影响.

主要方法:

用TNFα刺激了U87 GBM细胞,并隔离了EVs.
基因表达阵列和RT-qPCR被用于分析EV货物.
在体外血管生成模拟 (VM) 试验中,使用MSC进行了测试.

主要成果:

在U87细胞中,TNFα刺激增加了ERK,IκB和NFκB的酸化.
VT107抑制了TNFα诱导的酸化和下游的Hippo通路激活 (CYR61).
在GBM-EV中,VT107降低了促炎基因 (例如COX2,IL6,IL1B),并降低了它们促进MSCVM的能力.

结论:

VT107抑制了Hippo通路,并减少了GBM衍生的EVs中的促炎载荷.
这表明VT107可能会抵消与治疗耐药性相关的瘤促进过程.
VT107显示潜在的抑制MSC介导的VM诱导的GBM EVs.

关键词:

细胞外囊泡中的细胞外囊泡.质母细胞瘤 (glioblastoma) 是一个河马途径抑制剂河马途径抑制剂炎症炎症是一种炎症.血管生成的模仿.

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