升高的水静压会扰乱人类上皮细胞中生长因子的表达
Chen Yan1, Jie Xiao2, Yong-Hua Peng2
1Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan.
PloS one
|September 6, 2024
概括
升高的水静压 (HP) 影响细胞,导致可逆的形状变化和改变生长因子表达. 这项研究为损伤机制提供了新的见解,例如阻塞性尿路病.
科学领域:
- 腎臟病學 (nephrology) 是一種醫學專業.
- 细胞生物学 细胞生物学
- 分子生物学分子生物学
背景情况:
- 阻塞性尿路病是一种常见的脏疾病,与高水静压 (HP) 有关.
- 人们对HP诱导的损伤背后的分子和细胞机制尚不完全了解.
研究的目的:
- 为了研究升高HP对人类上皮细胞 (HREpCs) 的ex vivo影响.
- 阐明HREpCs对HP暴露的不同持续时间的分子和细胞反应.
主要方法:
- 主要的HREpC被暴露在100cmH2O HP中8小时或48小时.
- 细胞形态和生长因子的基因表达被分析为HP暴露后和恢复期.
- 对TGFB1,VEGFA,CSF2,TGFB2,PDGFB和VEGFB的细胞延长和表达水平进行定量分析.
主要成果:
- 短期 (8小时) 的HP暴露极少改变了细胞形态,但影响了生长因子表达 (增加TGFB1,VEGFA;减少CSF2,TGFB2).
- 长期 (48小时) 的HP暴露诱导了可逆细胞延长和显著改变的生长因子表达 (下调的CSF2,TGFB2,PDGFB,VEGFA,VEGFB;上调的TGFB3).
- 基因表达的变化大小在HP治疗48小时后比HP治疗8小时后更大.
结论:
- 对上皮质细胞的ex vivoHP负荷会诱导可逆的形态变化.
- 升高的HP显著扰乱了关键生长因子的表达特征.
- 这些发现为与阻塞性泌尿病相关的损伤提供了新的机制性见解.
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