在血管内皮细胞中,通过Lin28b介导的let-7d通过20-hydroxyecdysone抑制了热
Danli Chen1, Jianjun Yang1, Lingxuan Ren1
1Department of Pharmacology, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, 710061, P.R. China.
Naunyn-Schmiedeberg's archives of pharmacology
|December 9, 2024
概括
20 - 基 (20E) 通过降低Lin28b的调节来减少炎症,Lin28b是热的关键因素. 这种天然类固醇可提高let-7miRNA的调节,提供作为抗炎剂的潜力.
科学领域:
- 分子生物学分子生物学
- 免疫学 免疫学 免疫学
- 细胞生物学 细胞生物学
背景情况:
- 20-hydroxyecdysone (20E) 是一种具有已知的抗炎作用的天然类固醇.
- Lin28b是一种RNA结合蛋白,在炎症条件下被上调,并与细胞死亡途径相关.
- 热症是一种亲炎性编程细胞死亡途径,与各种疾病有关.
研究的目的:
- 调查Lin28b在20E的抗炎作用中的作用.
- 为了确定20E是否可以通过Lin28b.b调节热.
- 为了阐明20E的抗火虫机制所涉及的信号通路.
主要方法:
- 人的静脉内皮细胞 (HUVECs) 用20E进行了治疗.
- 使用过度表达和淘汰技术调节Lin28b表达.
- 评估了热的标志物 (IL-1β,LDH释放,PI阳性细胞,GSDMD/GSDME裂变).
- 分析了let-7miRNA水平,特别是let-7d.
主要成果:
- 在HUVECs中,20E选择性地降低了Lin28b表达和减弱的烧.
- 20E抑制了关键的热灭亡执行剂 (GSDMD,GSDME) 并减少了炎症标志物.
- 确定了Lin28b/let-7d通路至关重要,Lin28b过度表达抵消了20E的影响,而let-7d模仿逆转了热灭症恶化.
结论:
- 20E通过一种涉及Lin28b下调和随后let-7d上调的机制来缓解HUVEC中的热.
- 这项研究强调了Lin28b/let-7d信号轴作为20E抗炎和抗火虫作用的关键调解器.
- 20E通过这种途径向激光灭亡,显示出作为炎症性疾病治疗剂的前景.
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