通过抑制NEDD4L介导的IKK/NF-κB信号通路,GDF-15可以缓解糖尿病病
Xinyu Zhang1, Simeng Wang1, Nannan Chong2
1Shandong Provincial Hospital, Shandong University, Jinan, Shandong, China.
International immunopharmacology
|January 5, 2024
概括
增长分化因子-15 (GDF-15) 通过抑制NF-κB通路,减少糖尿病病 (DN) 中的炎症和细胞损伤. 升高的GDF-15为DN提供了潜在的治疗策略.
科学领域:
- 腎臟病學 (nephrology) 是一種醫學專業.
- 分子生物学分子生物学
- 免疫学 免疫学 免疫学
背景情况:
- 足细胞炎症损伤在糖尿病病 (DN) 发病过程中至关重要.
- 驱动DN炎症的精确机制尚未完全理解.
- 增长分化因子-15 (GDF-15),TGF-β超级家族成员,在各种病理条件下被上调.
研究的目的:
- 为了研究GDF-15在DN中podocyte炎症损伤中的作用.
- 阐明GDF-15调节炎症的分子机制.
- 评估GDF-15作为DN的潜在治疗标.
主要方法:
- 使用高脂肪饮食/链毒素 (HFD/STZ) 诱导的DN.的老鼠模型.
- 在血清和质细胞中评估GDF-15和促炎性细胞因子水平 (TNF-α,IL-1β,IL-6).
- 通过使用基因沉默和过度表达,研究了高血糖 (HG) 刺激的 podocytes 中 GDF-15 的影响.
- 研究了GDF-15,NF-κB通路组件 (IKK,IκBα) 和NEDD4L之间的相互作用.
主要成果:
- GDF-15,TNF-α,IL-1β和IL-6在HFD/STZ大鼠模型和糖尿病质细胞/HG治疗的小细胞中被上调.
- 沉默GDF-15加剧了HG诱导的炎症和细胞损伤.
- 过度表达GDF-15显著降低了细胞中的炎症反应.
- 通过与NEDD4L相互作用,GDF-15抑制了NF-κB的核转移,防止了IKK的泛素降解.
结论:
- 升高的GDF-15通过通过NEDD4L/IKK轴抑制NF-κB激活来保护DN.
- GDF-15减轻了糖尿病脏病的细胞炎症损伤和相关损伤.
- GDF-15是治疗糖尿病病的一个有前途的治疗标.
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