一种Ganoderma微子蛋白质GMI消除了焦点粘附网络,以减少肺癌细胞迁移和转移
Hung-Chih Lo1, Wei-Jyun Hua1, Hsin Yeh2
1Institute of Traditional Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan; Program in Molecular Medicine, National Yang Ming Chiao Tung University and Academia Sinica, Taipei, Taiwan.
Life sciences
|November 15, 2023
概括
甘菌微粒蛋白GMI通过抑制表皮-介质细胞转换 (EMT) 和促进癌细胞降解来抑制肺癌转移. 这种真菌蛋白为转移性肺癌提供了一个有前途的治疗策略.
科学领域:
- 生物化学 生物化学
- 分子生物学分子生物学
- 在瘤学瘤学.
背景情况:
- 癌症转移是癌症死亡的主要原因,需要新的治疗策略.
- 菌蛋白GMI (Ganoderma microsporum蛋白) 已经证明了初级瘤抑制,但其抗转移效应,特别是肺癌,仍然未被探索.
研究的目的:
- 调查GMI对肺癌的体内抗转移作用.
- 阐明GMI抗转移作用背后的分子机制.
主要方法:
- 在体外测试中评估了表皮细胞到介质细胞的过渡 (EMT) 和细胞粘附.
- 蛋白质组和生物信息分析确定了GMI调节的途径.
- 在LCL1携带小鼠的体内研究使用IVIS Spectrum成像评估了GMI的抗转移疗效.
主要成果:
- 通过降低整合素和FAK酸化的调节,GMI抑制了EMT,细胞迁移和粘附.
- GMI诱导的宏皮诺细胞体和酶介导的关键整合素 (αv,α5,α6,β1) 的降解.
- 通过FAK抑制,GMI抑制了slug的表达,增强了上皮标记物,减少了细胞的移动性,最终减少了肺转移,并延长了小鼠的生存时间.
结论:
- 在肺癌模型中,GMI显示出显著的抗转移潜力.
- GMI的机制包括FAK抑制,slug降解,以及细胞粘附和迁移的调节.
- GMI代表了治疗转移性肺癌的有希望的治疗候选者.
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