IGF1R激活FOXP3-β-catenin信号传递以促进乳腺癌的发展
Lu Li1, Zhiming Zhang2, Na Huang1
1Radiation Oncology Key Laboratory of Sichuan Province, Department of Radiotherapy, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Center, Sichuan Cancer Hospital & Institute, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, Chengdu, 610041, China.
Breast cancer research and treatment
|March 7, 2025
概括
叉头盒P3 (FOXP3) 通过增强β-catenin信号传递来促进乳腺癌的生长. 抑制这种途径,特别是通过IGF1R,为乳腺癌治疗提供了潜在的治疗策略.
科学领域:
- 分子瘤学分子瘤学
- 癌症生物学 癌症生物学
背景情况:
- 叉头盒P3 (FOXP3) 是调节性T细胞 (Tregs) 的关键标记物,与免疫调节有关.
- 瘤细胞中的FOXP3表达越来越被认可,但其在癌症进展中的确切作用,包括乳腺癌,仍然存在争议.
研究的目的:
- 调查FOXP3对乳腺癌发展和进展的特定影响.
主要方法:
- 利用乳腺癌细胞系和异种移植小鼠模型研究FOXP3对增殖和瘤生长的影响.
- 使用qPCR和免疫组织化学在人类乳腺癌组织中的量化FOXP3表达.
- 通过MTS,transwell和ChIP测试评估了细胞增殖,入侵和FOXP3与β-catenin促进物的相互作用.
主要成果:
- 晚期乳腺癌中FOXP3表达升高与较差的临床结果相关.
- FOXP3直接与β-catenin基因促进体结合,增强β-catenin的转录,促进乳腺癌细胞的增殖,迁移和入侵.
- 胰岛素样生长因子1受体 (IGF1R) 激活FOXP3-β-catenin通路,驱动瘤生长; elesclomol抑制FOXP3并抑制瘤生长.
结论:
- 在乳腺癌的发展过程中,FOXP3 起到瘤基因的作用.
- 准IGF1R-FOXP3-β-catenin信号轴为乳腺癌治疗提供了一个有前途的治疗途径.
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