在乳头甲状腺癌中APOE表达:影响瘤进展和巨细胞两极分化
Ronghua Huo1, Ruhua Zhao1, Ziwen Li1
1Department of Morphology Laboratory, Hebei North University, Zhangjiakou 075000, China.
Immunobiology
|June 27, 2024
概括
阿波蛋白E (APOE) 通过通过PI3K/Akt/NF-κB通路驱动M2型瘤相关巨细胞 (TAM) 两极化,促进乳头类甲状腺癌 (PTC) 的进展. 这一发现为开发针对性免疫疗法,以应对具有挑战性的PTC病例提供了新的途径.
科学领域:
- 在瘤学瘤学.
- 免疫学 免疫学 免疫学
- 分子生物学分子生物学
背景情况:
- 转移性乳头甲状腺癌 (PTC) 提出了治疗挑战,免疫疗法作为一个有前途的研究领域.
- 瘤相关巨细胞 (TAMs) 是瘤进展,入侵和转移的关键参与者.
- 阿波蛋白E (APOE) 影响巨细胞两极分化和瘤微环境,但其在PTC TAMs中的具体作用尚不清楚.
研究的目的:
- 研究APOE在调节TAM两极化和在乳头甲状腺癌 (PTC) 中的生物功能中的作用.
- 阐明APOE影响瘤微环境和PTC进展的分子机制.
主要方法:
- 在PTC组织中对APOE进行免疫组织化学染色.
- APOE表达的K1细胞和THP-1衍生巨细胞的共同培养模型.
- 使用qPCR,ELISA和西式涂抹对巨细胞极化进行分析.
- 使用异种移植模型评估瘤细胞行为 (增殖,迁移,入侵) 和体内瘤发生.
主要成果:
- 在PTC组织中增加APOE表达与瘤尺寸,阶段和淋巴转移相关.
- 在K1细胞中,APOE沉默减少了PI3K/Akt/NF-κB通路介导的增殖,迁移和入侵.
- 通过上调IL-10和TGF-β1的调节,APOE促进了类似M2的TAM两极化,在体外和体内增强了瘤进展.
结论:
- 在PTC中,APOE通过PI3K/Akt/NF-κB通路和炎症因子的调节驱动M2型TAM两极化.
- 了解APOE的作用对于开发用于PTC的新型免疫疗法至关重要.
- 在PTC病原和TAM调节中,APOE起到关键的调解作用.
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