结核性硬化复杂细胞衍生的EVs具有能够调节其微环境的改变蛋白质载荷,并具有作为疾病生物标志物的潜力
Muireann Ní Bhaoighill1,2, Juan M Falcón-Pérez3,4,5, Félix Royo3,4
1Tissue Microenvironment Group, School of Medicine, Cardiff University, Cardiff, UK.
Journal of extracellular vesicles
|June 20, 2023
概括
来自结核性硬化复合体 (TSC) 细胞的细胞外囊泡 (EV) 促进瘤生长. 拉巴胺治疗改变了这些EV,为TSC提供了一个新的治疗途径和潜在的生物标志物.
科学领域:
- 在瘤学瘤学.
- 细胞生物学 细胞生物学
- 生物化学 生物化学
背景情况:
- 机械性目标拉巴胺复合体1 (mTORC1) 的过度激活驱动许多固体瘤和结核性硬化综合体 (TSC).
- 细胞外囊泡 (EVs) 调节瘤微环境,但它们在TSC瘤发生中的作用尚不清楚.
研究的目的:
- 调查EVs对TSC瘤生长的贡献.
- 从TSC2缺乏细胞和TSC2表达细胞分泌的EV的特征.
- 探索拉巴胺对TSC中EVs的治疗作用.
主要方法:
- 来自TSC2缺乏细胞和TSC2表达细胞的EV的表征.
- 分析电动车内的蛋白质载荷.
- 评估EV对纤维细胞活力,增殖和生长因子分泌的影响.
- 评估拉巴胺对电动汽车货物和功能的影响.
- 在TSC患者中识别潜在的血生物标志物.
主要成果:
- 缺少TSC2的EV表现出独特的蛋白质载荷,富含瘤促进途径.
- 来自TSC2缺乏细胞的EV增强受体纤维细胞的活力,增殖和生长因子分泌.
- 拉巴胺治疗改变了EV载荷,并降低了它们的促进瘤的能力.
- 在TSC患者的血中,三种与EV相关的蛋白质的含量升高,这表明生物标志物的潜力.
结论:
- 在TSC瘤微环境中,EV在促进瘤生长方面发挥着重要作用.
- 拉帕米辛通过修改EVs表现出细胞间治疗效果.
- 与EV相关的蛋白质代表了用于TSC诊断和监测的有希望的生物标志物.
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