通过ERK和AKT通路,CRH对超维林进行上调,以促进膀癌细胞迁移
Rongchen Mao1, Feier Zhou1, Yali Hong1
1Department of Pharmacology, Basic Medical Sciences, Nanjing Medical University, Nanjing, China.
Cell biology international
|August 2, 2024
概括
皮质激素释放激素 (CRH) 通过增加超维林 (SVIL) 表达来增强膀癌细胞迁移和转移. 这一过程涉及AKT和ERK信号通路之间的交声,突出显示潜在的治疗点.
科学领域:
- 在瘤学瘤学.
- 细胞生物学 细胞生物学
- 分子生物学分子生物学
背景情况:
- 皮质otropin释放激素 (CRH) 影响细胞过程,免疫反应和炎症,影响瘤的发展.
- 超维林 (SVIL) 是一种活性蛋白结合蛋白,与癌细胞的增殖,扩散和迁移有关.
研究的目的:
- 为了研究CRH对膀癌细胞迁移的影响.
- 阐明潜在的分子机制,包括SVIL和信号通路的作用.
主要方法:
- 在体外测试:使用T24和RT4人类膀癌细胞进行伤口愈合和穿孔测试.
- 在体内研究:细胞系衍生异种移植 (CDX) 鼠标模型.
- 分子分析:小毛RNA (shRNA) 用于SVIL敲击,西式斑点用于蛋白质表达和酸化 (AKT,ERK),以及途径抑制剂 (MK2206,U0126).
主要成果:
- 在体外和体内,CRH显著增加了T24膀癌细胞的迁移和转移.
- 降低SVIL的调节减弱了CRH诱导的细胞迁移促进作用.
- CRH增加了SVIL mRNA和蛋白质的表达,以及AKT和ERK的酸化.
- AKT和ERK通路之间的交叉对话对于CRH诱导的SVIL表达和酸化至关重要.
结论:
- CRH促进膀癌细胞迁移和转移.
- AKT-ERK信号通路和SVIL是CRH在膀癌中的前迁移效应的关键调解者.
- 针对这些途径可能为膀癌治疗提供治疗策略.
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