高尔夫3-STIP1复合体通过外体分泌激活STAT3,诱导结肠癌转移
Yanta Guo1, Zhongshi Hong2, Sifu Huang1
1Department of Gastroenterology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian, China.
Biotechnology journal
|December 23, 2024
概括
戈尔吉蛋白3 (GOLPH3) 和压力诱导的蛋白1 (STIP1) 形成一个复合体,促进结肠癌细胞的入侵和迁移. 这种复合体通过外体分泌,激活周围细胞中的STAT3通路.
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:
- 结肠癌 (CC) 是全球癌症死亡的主要原因.
- 高侵袭性和CC细胞的迁移对死亡率有很大影响.
- 在CC转移中GOLPH3,STIP1和STAT3信号的作用需要阐明.
研究的目的:
- 研究GOLPH3,STIP1和STAT3通路在结肠癌细胞入侵和迁移中的功能.
- 确定GOLPH3和STIP1影响CC细胞行为的机制.
- 探索外体在GOLPH3和STIP1.1细胞间通信中的作用.
主要方法:
- 通过高速离心隔离对外体的隔离.
- 用于蛋白质表达分析的西部涂抹 (WB).
- 细胞入侵和迁移的Transwell测试.
- 共同免疫沉 (Co-IP) 用于相互作用的验证.
- 免疫光和免疫组织化学 (IHC) 用于亚局部化和体内表达.
- 用于功能验证的动物实验.
主要成果:
- 在CC组织和细胞中,GOLPH3的表达很高,其沉默减少了入侵,迁移和上皮-介质细胞过渡 (EMT).
- GOLPH3与STIP1相互作用,该复合体激活STAT3信号通路,增强CC细胞的入侵和迁移.
- 在CC细胞外体中发现GOLPH3和STIP1,它们调解GOLPH3-STIP1复合物的转移,以激活受体细胞中的STAT3信号.
结论:
- 通过激活STAT3信号通路,GOLPH3-STIP1复合物促进结肠癌细胞的入侵和迁移.
- 外基因组促进了GOLPH3-STIP1复合体的细胞间转移,有助于结肠癌的进展.
- 准GOLPH3-STIP1复合体或外体运输可能为结肠癌提供新的治疗策略.
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