FABP3通过调节镜片上皮细胞中的铁亡来促进细胞亡和氧化应激
Qi Wang1, Chunxiao Zhang1, Bin Yu1
1Department of Ophthalmology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China.
Free radical research
|March 6, 2025
概括
脂肪酸结合蛋白3 (FABP3) 在HLE-B3细胞的氧化应激和亡中起着关键作用. FABP3调节铁,这表明它是白内障治疗的潜在治疗点.
科学领域:
- 眼科医生 眼科 眼科
- 细胞生物学 细胞生物学
- 生物化学 生物化学
背景情况:
- 白内障是导致视力障碍的主要原因之一.
- 氧化应激,亡和炎症都与白内障的发病有关.
- 脂肪酸结合蛋白3 (FABP3) 在白内障中的作用尚不清楚.
研究的目的:
- 为了研究FABP3在过氧化 (H2O2) 引起的白内障中的生物功能和机制.
- 探索FABP3在镜片上皮细胞中调节铁亡的作用.
主要方法:
- 用H2O2对待HLE-B3细胞以诱导氧化应激.
- 通过敲击和过度表达来操纵FABP3表达.
- 评估了细胞活力,细胞亡,炎症性细胞因子水平和氧化应激标志物.
- 分析了与铁亡相关的蛋白质 (GPX4,SLC7A11,Ferritin) 和标记物 (脂质氧化物,Fe2+).
- 铁灭诱导剂 (erastin) 和抑制剂 (Fer-1) 用于确认机制.
主要成果:
- H2O2治疗增加了FABP3表达,降低了细胞活力,增强了细胞亡,并促进了炎症和氧化应激.
- 抑制FABP3可以逆转这些H2O2引起的有害影响,而过度表达FABP3则会加剧这些有害影响.
- 通过影响脂质氧化物,Fe2+水平以及GPX4,SLC7A11和Ferritin的表达,FABP3调节铁.
- FABP3对亡,炎症和氧化应激的影响与铁亡调节有关.
结论:
- 在H2O2处理的透镜上皮细胞中,FABP3 knockdown通过调节铁亡来抑制亡,炎症和氧化应激.
- 在氧化应激诱导白内障的背景下,FABP3充当铁灭的调节者.
- 在白内障治疗中,FABP3是潜在的治疗点.
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