阿克罗莱因通过诱导来自穆勒细胞的CCL2生产来通过巨细胞化学反应促进视网膜炎症
Kanae Fukutsu1, Miyuki Murata1, Kasumi Kikuchi1
1Department of Ophthalmology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Hokkaido, Japan.
概括
暴露于阿克罗莱因会增加多发性糖尿病视网膜病变 (PDR) 中的有毒蛋白质添加物和CCL2. 这种有毒的化物通过刺激穆勒细胞吸引巨细胞来驱动PDR进展.
科学领域:
- 眼科医生 眼科 眼科
- 毒理学 毒理学 毒理学
- 细胞生物学 细胞生物学
背景情况:
- 扩散性糖尿病视网膜病变 (PDR) 涉及复杂的炎症机制.
- 一种有毒的化物阿克罗莱因与各种病理有关.
- 了解阿克罗莱因在PDR中的作用对于开发向疗法至关重要.
研究的目的:
- 为了研究在PDR中由阿克罗莱因介导的炎症途径.
- 为了评估PDR患者中阿克罗林结合蛋白添加物和CCL2之间的相关性.
- 阐明阿克罗莱因影响米勒细胞和巨细胞迁移的细胞机制.
主要方法:
- 使用Luminex和ELISA对人体玻璃体液中N3-formyl-3,4-dehydropiperidino) lysine adduct (FDP-lys) 和CCL2进行量化.
- 在实验室中,大鼠的穆勒质细胞 (TR-MUL5) 暴露于烯蛋白,然后通过实时PCR和ELISA评估CCL2表达.
- 使用Transwell试验评估巨细胞迁移,并检查TR-MUL5细胞中的高流动性组盒-1 (HMGB1) 转位.
主要成果:
- 与对照组相比,PDR患者的玻璃体液中观察到高水平的FDP-lys和CCL2,它们之间存在显著的正相关性.
- 在TR-MUL5细胞中,阿克罗莱因刺激剂量上调调节了CCL2表达.
- 烯素刺激的穆勒细胞增强了巨细胞的迁移,这种效应被CCR2抗剂抑制,烯素诱导了HMGB1转位,这种转位被HMGB1抑制剂减少.
结论:
- 阿克罗林在PDR的炎症过程中起着重要作用.
- 阿克罗林通过增加CCL2分泌和Müller细胞中的HMGB1转位来促进PDR进展,从而增强巨细胞的迁移.
- 准阿克罗林介导通路,包括CCL2和HMGB1,可能为PDR提供治疗策略.
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