通过miR-542-3p/HIF-1α/VEGF轴,LncRNA TUG1可以缓解慢性病
Luoxiang Qian1,2, Wanru Hu1, Yanping Wang1
1Department of Nephrology, Affiliated Hospital of Xuzhou Medical University, 221002, China.
Heliyon
|January 15, 2025
概括
低调长非编码RNA TUG1 (lncRNA TUG1) 通过改善血管生成和减少缺氧来缓解间纤维化. 这种保护作用涉及miR-542-3p通路,为慢性病进展提供了新的见解.
科学领域:
- 腎臟病學 (nephrology) 是一種醫學專業.
- 分子生物学分子生物学
- 生物化学 生物化学
背景情况:
- 慢性病 (CKD) 影响全球10%的成年人群,间纤维化 (RIF) 是导致末期衰竭的常见途径.
- 长非编码RNAs (lncRNAs) 和microRNAs (miRNAs) 涉及CKD,但它们在RIF中的确切作用尚不清楚.
- 了解RIF背后的分子机制对于开发有效的治疗策略至关重要.
研究的目的:
- 调查miR-542-3p和lncRNA TUG1对纤维化的影响.
- 在RIF的背景下,阐明连接这些分子的基础监管机制.
- 评估针对IncRNA TUG1进行脏纤维化治疗干预的潜力.
主要方法:
- 试管培养试验以评估血管生成和内皮细胞修复.
- 单边尿路阻塞 (UUO) 模型在小鼠中诱导RIF,使用西部斑块和qRT-PCR进行分析.
- 光微血管学 (FMA) 使用 MATLAB 分析检测周周毛细管 (PTC) 损伤.
- 对CD31和α-SMA的协同表达分析,以确定内皮细胞到肌纤维细胞的过渡.
主要成果:
- 在体外,lncRNA TUG1的下调促进了血管生成,并修复了内皮细胞结.
- 在UUO模型中,lncRNA TUG1 knockdown通过缓解组织缺氧来减少肌纤维细胞过渡和纤维化标志物.
- 通过抑制miR-542-3p减少了lncRNA TUG1下调的保护作用,突出了miR-542-3p/HIF-1α/VEGF轴.
结论:
- lncRNA TUG1在促进脏间歇性纤维化方面起着有害的作用.
- 低调 lncRNA TUG1 通过增强血管生成和减少缺氧,提供对 RIF 的保护作用.
- miR-542-3p/HIF-1α/VEGF轴是 lncRNA TUG1介导的纤维化中关键的调节途径.
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