SUMOylation 调节乳腺癌相关纤维细胞的攻击性
Angelica Martínez-López1,2, Guiomar Infante1,2, Marina Mendiburu-Eliçabe3
1Departamento de Bioquímica y Biología Molecular, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Madrid, Spain.
Cellular oncology (Dordrecht, Netherlands)
|October 21, 2024
概括
向癌症相关纤维细胞 (CAF) 中的SUMOylation与银酸 (GA) 影响瘤细胞行为. 较高的GA度抑制了乳腺癌的进展,这表明抑制SUMOylation是一种治疗策略.
科学领域:
- 在瘤学瘤学.
- 癌症生物学 癌症生物学
- 分子治疗学分子治疗学
背景情况:
- 与癌症相关的纤维细胞 (CAF) 是瘤微环境 (TME) 中的关键 stromal 细胞.
- SUMOylation路径的失调有助于乳腺癌的瘤发生和耐药性.
- 作为潜在的治疗点,CAF和SUMOylation正在被探索.
研究的目的:
- 研究SUMOylation在乳腺CAF中的作用.
- 评估SUMOylation抑制作为乳腺癌的治疗策略.
主要方法:
- 乳腺CAF用SUMO1抑制剂银杏酸 (GA) 在不同度下进行治疗.
- 用条件介质评估癌细胞的增殖,迁移和入侵.
- 定量蛋白质组学 (SILAC) 分析了GA处理的CAF中的信号通路.
- 进行了体外,体内和患者样本研究.
主要成果:
- 银酸 (GA) 诱导了乳腺癌细胞死亡,但没有影响CAFs.
- GA改变了CAF受条件的介质,影响瘤细胞的行为,以度为依赖.
- 低GA (10微米) 增加了扩散,迁移和入侵;高GA (30微米) 抑制了这些过程.
- 瘤生长和转移在高GA度下降.
- 观察到改变了Rac1 GTPase活性和AKT信号传递.
结论:
- 在TME中,SUMOylation起着至关重要的作用,特别是在CAF中.
- 向CAF SUMOylation会影响它们的信号和分泌物,调节它们的原始基因活动.
- 抑制SUMOylation为乳腺癌提供了一个有前途的治疗途径.
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