循环RNA PARG调整miR-140-3p以影响败血症的进展
Hongyi Zheng1, Xianghong Liu2, Jinliang Peng2
1Department of Critical Care Medicine, The First Affiliated Hospital of Gannan Medical College, Jiangxi, 341000, China. youkebei545260460@163.com.
Cellular and molecular biology (Noisy-le-Grand, France)
|August 12, 2023
概括
循环RNA PARG (circRNA PARG) 通过调节细胞亡和炎症,在败血症中起着至关重要的作用. 循环RNA PARG的下调减轻了败血症引起的细胞损伤,提供了潜在的治疗见解.
科学领域:
- 分子生物学分子生物学
- 细胞生物学 细胞生物学
- 免疫学 免疫学 免疫学
背景情况:
- 败血症是一种危及生命的疾病,死亡率高,常常在重症监护室 (ICU) 复杂化.
- 了解导致败血症发病的分子机制对于开发有效治疗方法至关重要.
- 循环RNAs (circRNAs) 正在成为各种生物过程的关键调节者,包括炎症疾病.
研究的目的:
- 为了研究circRNA PARG在败血症中的表达和功能.
- 阐明circRNA PARG在脂聚糖 (LPS) 诱导的人类肺微血管内皮细胞 (HPMEC) 亡和炎症中的作用.
- 在败血症的背景下,确定circRNA PARG和miR-140-3p之间的关系.
主要方法:
- 定量实时PCR (qRT-PCR) 用于测量毒症患者和HPMECs中的circRNA PARG表达.
- 通过RNA-光在位杂交 (FISH) 来定位circRNA PARG和miR-140-3p.
- 对HPMECs的LPS刺激以模仿败血症状况.
- 双露西法酶记者测定证实了circRNA PARG和miR-140-3p之间的相互作用.
主要成果:
- 在败血症中,circRNA PARG表现出异常表达.
- 循环RNA PARG的降低调节通过抑制炎症和亡相关基因显著缓解了LPS诱导的HPMEC亡.
- 循环RNA PARG积极调节miR-140-3p水平,其上调可逆转miR-140-3p模仿转染后LPS诱导的细胞损伤.
结论:
- 循环RNA PARG涉及到败血症的致病性.
- 循环RNA PARG 影响LPS诱导的内皮细胞亡和炎症,部分是通过与miR-140-3p的相互作用.
- CircRNA PARG代表了毒症管理的潜在治疗标.
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