低剂量的会通过激活STAT3信号通路来诱导淋巴血管生成
Yan Xing1, Xia Wang2, Jing Liu2
1Department of Respiratory and Intensive Care Unit, The First Affiliated Hospital of Shandong First Medical University and Shandong Provincial Qianfoshan Hospital, Shandong Institute of Respiratory Diseases, Jinan, 250014, China; Institute of Microvascular Medicine, Medical Research Center, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan 250014, China; School of Public Health and Health Management, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250014, China.
低剂量暴露通过激活STAT3通路促进角膜淋巴血管生成. 这项研究揭示了.
科学领域:
- 毒理学 毒理学 毒理学
- 血管生物学 血管生物学
- 眼科医生 眼科 眼科
背景情况:
- (Cd) 是一种具有系统分布的有毒环境污染物.
- 对于Cd对淋巴血管,特别是角膜的影响,仍然在很大程度上不明.
- 淋巴细胞生成在眼睛健康和疾病中起着至关重要的作用.
研究的目的:
- 为了研究暴露对角膜淋巴血管生成的影响.
- 阐明潜在的分子机制,专注于信号通路.
- 为了确定Cd对淋巴内皮细胞功能的剂量依赖性影响.
主要方法:
- 在体内研究中,使用在角膜性烧伤后暴露于Cd的小鼠.
- 在人体皮肤淋巴内皮细胞 (HDLEC) 的体外实验.
- 对关键淋巴血管生成标记物 (LYVE-1,PROX-1,VEGFR3) 和信号通路 (STAT3,MAPK,AKT,NF-κB) 的分析.
主要成果:
- 在体内,CD暴露增强了性烧伤诱导的角膜淋巴血管生成.
- 低剂量的Cd (1μM) 通过STAT3激活促进了HDLEC的扩散和迁移.
- 高剂量的Cd (10μM) 抑制了HDLEC的扩散和迁移.
- 在依赖于STAT3的方式上调调节VEGFR3表达和促剂活性.
结论:
- 低剂量暴露会促进角膜淋巴血管生成.
- STAT3信号通路是Cd诱导淋巴血管生成的关键调解者.
- Cd对淋巴内皮细胞功能表现出剂量依赖的影响,对眼睛健康有影响.
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