升级调节的microRNA-429通过向HIF1AN和调节HIF1A/VEGF通路来赋予子宫内膜层细胞功能障碍
Rong Zheng1, Yulan Liu1, Yan Lei1
1Department of Gynecology, Maternal and Child Health Hospital of Hubei Province, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430070, Hubei, China.
Open medicine (Warsaw, Poland)
|October 19, 2023
概括
抑制microRNA-429 (miR-429) 通过向低氧诱导因子1亚单元α抑制剂 (HIF1AN) 并调节HIF1A/VEGF通路,阻碍细胞入侵和病变发展,从而抑制子宫内膜异位症的进展.
科学领域:
- 生殖生物学 生殖生物学
- 分子内分泌学分子内分泌学
- 疾病的细胞机制.
背景情况:
- 子宫内膜异位症 (EM) 是一种常见的雌激素依赖性疾病,影响女性的生活质量.
- 微RNA-429 (miR-429) 在EM病原体中的作用已被建议,但尚未完全理解.
- 澄清miR-429的分子机制对于理解EM至关重要.
研究的目的:
- 为了研究 miR-429 在子宫内膜异位症中的分子机制.
- 确定miR-429在人类子宫内膜层细胞 (HESC) 行为的作用.
- 评估miR-429调制对实验性子宫内膜异位症模型的影响.
主要方法:
- 通过免疫光学和流细胞计测定HESCs的识别.
- 通过子宫内膜自身移植建立了对子宫内膜症的小鼠模型.
- 基因和蛋白质表达的评估使用RT-qPCR和西式涂抹.
- 在体外功能测定 (扩散,迁移,入侵) 和光酶记者测定.
- 在体内研究涉及小鼠模型中的miR-429枯竭.
主要成果:
- 抑制miR-429在体外显著降低了HESC的扩散,迁移和侵入性.
- miR-429直接针对低氧诱导因子1亚单元α抑制剂 (HIF1AN) 在HESC中.
- HIF1AN沉默可以逆转miR-429抑制对HIF1A/VEGF信号通路的抑制作用.
- 在子宫内膜异位症的小鼠模型中,miR-429的耗尽减轻了子宫外病变的发展.
结论:
- 抑制miR-429阻碍了HESC侵入性行为和子宫内膜异位症的进展.
- 该机制涉及准HIF1AN并调节HIF1A/VEGF信号通路.
- miR-429代表了对子宫内膜异位症的潜在治疗标.
相关概念视频
MicroRNAs
3.0K
MicroRNA (miRNA) are short, regulatory RNA transcribed from introns (non-coding regions of a gene) or intergenic regions (stretches of DNA present between genes). Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself, forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After the pre-miRNA...
3.0K
Regulation of Angiogenesis and Blood Supply
2.6K
Rapidly dividing tumors, embryos, and wounded tissues require more oxygen than usual, lowering the oxygen concentration in the blood. At low oxygen or hypoxic conditions, an oxygen-sensitive transcription factor called the hypoxia-inducible factor 1 or HIF1 is activated. HIF1 is a dimeric protein of alpha (ɑ) and beta (β) subunits. Under optimal oxygen conditions, HIF1β is present in the nucleus while HIF1ɑ remains in the cytosol. HIF1ɑ is hydroxylated by prolyl...
2.6K


