缺少CLDN11可以调节FOXM1以促进乳腺瘤通过刺信号通路的进展
Leyi Yang1, Xiaoping Wang1, Qinghai Lin2
1Department of Breast Surgery, Zhangzhou Hospital, Fujian Medical University, No 59 Shengli West Road, Xiangcheng district, Zhangzhou, Fujian province, 363000, China.
Journal of molecular histology
|October 22, 2024
概括
乳腺癌中减少的克劳丁-11 (CLDN11) 表达促进瘤生长,通过激活刺信号通路,并调节叉头盒M1 (FOXM1) 的瘤生长. CLDN11是乳腺癌的潜在生物标志物和治疗点.
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:
- 克劳丁 (CLDNs) 对上皮屏障功能至关重要,并通过改变表达影响瘤进展.
- 关于CLDN,特别是CLDN11在乳腺癌进展中的特定作用和调控机制尚未完全阐明.
研究的目的:
- 研究CLDN11在乳腺癌进展中的作用.
- 阐明CLDN11影响瘤行为的分子机制.
主要方法:
- 在癌症基因组图集 (TCGA) 数据库和临床乳腺癌样本中分析CLDN11表达.
- 试验室内实验涉及沉默CLDN11在MCF-7和MDA-MB-231乳腺癌细胞系.
- 研究刺信号通路和叉头盒M1 (FOXM1) 表达式.
- 在体内研究评估瘤进展后CLDN11沉默和刺路径阻塞.
主要成果:
- 在乳腺瘤组织中观察到CLDN11表达的减少,与患者预后不佳相关.
- 在实验室中,CLDN11沉默增强了乳腺癌细胞的增殖和迁移.
- 由于CLDN11的缺陷,FOXM1通过激活刺信号通路而增加了上调.
- 在体内,阻断刺信号减弱了由CLDN11沉默诱导的瘤进展.
结论:
- CLDN11/FOXM1轴在推动乳腺癌进展方面发挥着重要作用.
- 在乳腺癌中,CLDN11作为瘤抑制剂起作用.
- CLDN11具有作为乳腺癌治疗的诊断生物标志物和治疗点的潜力.
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