通过调节JAK/STAT3/bFGF信号通路,IFITM3促进了结质母细胞瘤干细胞介导的血管生成
Zhangsheng Xiong1,2, Xiangdong Xu1,2, Yuxuan Zhang1,2,3
1Department of Neuro-oncological Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou, 510060, PR China.
Cell death & disease
|January 13, 2024
概括
干扰素诱导的跨膜蛋白3 (IFITM3) 通过激活Jak2/STAT3信号和增加bFGF分泌来促进多形质母细胞瘤 (GBM) 血管生成. 这一发现凸显了IFITM3作为GBM的潜在治疗点.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 癌症研究 癌症研究
背景情况:
- 干扰素诱导的跨膜蛋白3 (IFITM3) 已知具有抗病毒性质.
- 新出现的证据表明IFITM3与瘤入侵和进展有关.
- IFITM3在多形质母细胞瘤 (GBM) 中的具体作用尚不清楚.
研究的目的:
- 阐明IFITM3在GBM进展中的作用和分子机制.
- 调查GBM患者数据集中的IFITM3表达.
- 为了确定IFITM3对GBM血管生成的影响.
主要方法:
- 在TCGA和CGGA质瘤数据集中的IFITM3表达的分析.
- 在体外培养和初级GBM干细胞 (GSCs) 的识别.
- 使用shRNA和lentiviral载体进行功能丧失和功能获取研究.
- 通过GSC和血管内皮细胞的Transwell共同培养系统.
- 血管生成的测试:管形成和基于球体的血管生成.
主要成果:
- 在GBM样本中,IFITM3表达显著升高.
- 高水平的IFITM3预示着不良的临床结果.
- 来自GSC的IFITM3激活了Jak2/STAT3信号传输.
- IFITM3促进基本纤维细胞生长因子 (bFGF) 的强烈分泌.
- 在IFITM3.3升高的情况下观察到增强的血管生成.
结论:
- IFITM3是促进GBM血管生成的关键因素.
- 雅克2 / STAT3 / bFGF途径调解IFITM3在GBM中的亲血管效应.
- IFITM3代表了抑制GBM血管生成的潜在治疗标.
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