在三阴性乳腺癌中CircASH1L介导的瘤进展:PI3K/AKT通路机制
Haiyan Liu1,2, Jiaming Wu3, Jin Gong4
1Department of Breast Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong, China.
循环RNA circASH1L通过影响细胞增殖和瘤发育,促进三阴性乳腺癌 (TNBC) 的生长. 它调节PI3K/AKT通路,影响裸体小鼠的瘤体积和质量.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 遗传学 是一个遗传学.
背景情况:
- 三阴性乳腺癌 (TNBC) 是一种具有有限治疗选择的侵袭性亚型.
- 循环RNAs (circRNAs) 正在成为各种癌症的关键调节者,包括TNBC.
- 了解 circASH1L 等特定circRNAs的作用对于开发向疗法至关重要.
研究的目的:
- 调查circASH1L在裸体小鼠三阴性乳腺癌 (TNBC) 皮下瘤生长中的作用.
- 阐明PI3K/AKT信号通路在circASH1L介导的瘤进展中的参与.
主要方法:
- 在TNBC中使用基因表达综合 (GEO) 数据库对circRNA表达的生物信息分析.
- 在体内实验中,涉及裸体小鼠与TNBC异种移植,利用circASH1L敲击和过度表达模型.
- 免疫组织化学和西部斑点测试以评估瘤生长标志物和PI3K/AKT通路激活.
主要成果:
- 发现circASH1L在TNBC组织中被显著上调.
- Knockdown of circASH1L (shcircASH1L-1) 导致瘤体积,质量和Ki67表达的减少.
- circASH1L调节影响了PI3K/AKT通路中的关键蛋白的表达.
结论:
- circASH1L在三阴性乳腺癌中充当瘤促进剂.
- circASH1L的表达会影响TNBC细胞的增殖和瘤的生长.
- circASH1L至少部分通过调节PI3K/AKT信号通路来发挥作用.
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