IFIT3通过与LASP1相互作用促进淋巴结转移,以激活食道状细胞癌中的FAK-ERK信号
Qixiao Cui1,2, Xiaolin Zhou1,2, Xiaojie Chen1,2
1Featured Laboratory for Biosynthesis and Target Discovery of Active Components of Traditional Chinese Medicine, School of Traditional Chinese Medicine, Binzhou Medical University, Yantai, Shandong, PR China.
Cell death & disease
|December 18, 2025
概括
干扰素诱导的蛋白质与四基重复3 (IFIT3) 在食道状细胞癌 (ESCC) 中促进淋巴结转移. 针对IFIT3可能为转移ESCC患者提供新的治疗策略.
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:
- 淋巴结转移 (LNM) 在食道状细胞癌 (ESCC) 的预后显著恶化.
- 在ESCC中驱动LNM的基本机制仍然不完全理解.
- 识别转移的关键分子驱动因素对于开发向疗法至关重要.
研究的目的:
- 为了研究干扰素诱导的蛋白质与四基重复3 (IFIT3) 在ESCC淋巴结转移中的作用.
- 阐明IFIT3影响ESCC细胞迁移和入侵的分子机制.
- 评估IFIT3及其交互伙伴作为ESCC中的潜在预后生物标志物和治疗目标.
主要方法:
- 在ESCC组织中IFIT3表达的定量分析,包括淋巴结转移阳性和阴性样本.
- 在体外细胞迁移和入侵试验中,使用ESCC细胞系具有改变IFIT3表达的细胞系.
- 在体内转移模型评估IFIT3对瘤扩散的影响.
- 共同免疫沉和西式涂抹以调查蛋白质与蛋白质相互作用 (IFIT3,LASP1,Talin1) 和信号通路激活 (FAK-ERK).
主要成果:
- 发现IFIT3在ESCC组织中表达很高,特别是在淋巴结转移的组织中.
- 过度表达IFIT3增强了ESCC细胞的转移潜力,无论是体外还是体内.
- IFIT3与LIM和SH3蛋白1 (LASP1) 物理相互作用,促进LASP1定位到细胞边缘,随后通过Talin1和integrin激活FAK-ERK信号通路.
- 在ESCC和LNM组织中,IFIT3和LASP1都被上调,与患者预后不佳相关.
结论:
- IFIT3通过调节LASP1/FAK/ERK信号轴来促进食道状细胞癌中的淋巴结转移.
- IFIT3和LASP1的联合高表达表明ESCC患者的预后特别差.
- 在ESCC中,IFIT3是抑制淋巴结转移的有希望的治疗标.
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