MiR-21通过向PDCD4通过NF-κB/iNOS/NO通路调节P.g-LPS诱导的亡和HUVEC中的炎症反应
Jing Ren1, Huiqiong Zou1, Siyu Sun1
1Department of Stomatology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.
Non-coding RNA research
|December 1, 2025
概括
微RNA-21 (miR-21) 通过向PDCD4和调节NF-κB/iNOS/NO通路来保护皮肤内皮损伤,从而防止皮肤上 Porphyromonas gingivalis lipopolysaccharide (P.g-LPS) 引起的内皮损伤. 这表明miR-21是牙周炎相关的血管并发症的潜在治疗标.
科学领域:
- 血管生物学 血管生物学
- 微生物学 微生物学
- 分子生物学分子生物学
背景情况:
- 牙周炎引起的 Porphyromonas gingivalis 脂多糖 (P.g-LPS) 有助于动脉样硬化.
- 微RNA-21 (miR-21) 调节炎症和血管病理,但其在Pg-LPS内皮反应中的作用尚不清楚.
研究的目的:
- 研究miR-21在内皮细胞对P.g-LPS.反应中的作用.
- 阐明P.g-LPS诱导的内皮损伤背后的分子机制.
主要方法:
- 对内皮细胞亡和炎症进行了分析的牙活检.
- 通过RT-PCR量化miR-21水平.
- 用P.g-LPS和miR-21调节器治疗的人类静脉内皮细胞 (HUVEC).
- 评估了细胞亡,增殖,迁移和炎症标志物.
- 确认了PDCD4作为miR-21的目标,并检查了NF-κB/iNOS/NO信号.
主要成果:
- 牙周炎内皮细胞显示出亡和炎症的增加.
- 在HUVEC中,P.g-LPS降低了miR-21的表达,从而加剧了损伤.
- MiR-21过度表达减轻了P.g-LPS的影响.
- 证实PDCD4是直接的miR-21标,miR-21抑制了NF-κB/iNOS/NO的激活.
结论:
- MiR-21作为一种保护性调节剂,对P.g-LPS诱导的内皮损伤起到保护作用.
- 米R-21针对PDCD4并调节NF-κB/iNOS/NO通路.
- 米R-21是牙周炎相关的血管疾病的潜在治疗标.
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