CIRCVMA21-RELATED PATHWAY ALLEVIATES LIPOPOLYSACCHARIDE-INDUCED HK-2 CELL INJURY 导致的HK-2细胞损伤,这可能是因为这些细胞的损伤
Fuzhu Li1, Hongyun Fu2, Linna Zeng3
1The First Affiliated Hospital, Department of Neurosurgical Intensive Care Unit, Hengyang Medical School, University of South China, Hengyang, China.
Shock (Augusta, Ga.)
|April 25, 2024
概括
循环RNA VMA21 (circVMA21) 通过抑制细胞中的炎症和氧化应激来保护急性损伤 (AKI). 它通过miR-337-3p/ZEB2通路发挥作用,为AKI提供了潜在的治疗点.
科学领域:
- 分子生物学分子生物学
- 细胞生物学 细胞生物学
- 腎病理生理學 腎病理生理學
背景情况:
- 败血症引起的急性损伤 (AKI) 是一种具有有限治疗选择的危急病.
- 循环RNA VMA21 (circVMA21) 已经显示出缓解AKI的潜力.
- 需要进一步研究AKI中circVMA21的分子机制.
研究的目的:
- 阐明circVMA21在HK2细胞中对脂聚糖 (LPS) 诱导的损伤施加保护作用的分子机制.
- 在AKI的背景下研究circVMA21,miR-337-3p和ZE2之间的相互作用.
主要方法:
- 脂聚糖 (LPS) 用于诱导HK2细胞的损伤.
- 使用定量实时PCR (qRT-PCR) 来评估circVMA21,miR-337-3p和ZEB2.2的表达水平.
- 用CCK8,EDU,流细胞计和炎症因素和氧化应激标志物的测量来评估细胞活力,亡,炎症和氧化应激.
- 通过双露西法酶记者,RIP和RNA拉下测定证实了RNA相互作用.
主要成果:
- 在AKI患者中发现circVMA21表达减少.
- 过度表达circVMA21显著缓解了HK2细胞中LPS诱导的炎症,亡和氧化应激.
- circVMA21作为miR-337-3p的分子海绵,反过来又针对ZEB2.
- 通过miR-337-3p的过度表达,circVMA21的保护作用被逆转,而ZEB2的过度表达抵消了miR-337-3p的影响.
结论:
- circVMA21对LPS诱导的HK2细胞损伤起着保护作用.
- 这种机制涉及circVMA21/miR-337-3p/ZEB2轴.
- circVMA21代表了治疗急性损伤的潜在治疗目标.
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