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维生素D减轻肝脏脂肪积累和炎症,并增加SIRT1/AMPK在AML-12肝细胞中的表达
1Department of Food and Nutrition, Gangneung-Wonju National University, Gangneung-si 25457, Gangwon State, Republic of Korea.
Molecules (Basel, Switzerland)
|March 28, 2024
概括
维生素D的活性形式,1,25-二氧维生素D,可以减少肝细胞中的脂肪积累和炎症. 它对脂肪肝疾病的有益作用与SIRT1通路有关.
科学领域:
- 肝病学 肝病学是一种肝病学.
- 内分泌学 在内分泌学.
- 分子生物学分子生物学
背景情况:
- 非酒精性脂肪性肝病 (NAFLD) 涉及肝脏脂肪积累和炎症,与代谢功能障碍有关.
- 维生素D状态与NAFLD相关,这表明维生素D补充剂的潜在治疗作用.
- 1,25-二氧维生素D (1,25(OH) 2D) 是维生素D最活跃的形式,在肝脏健康方面具有潜在的作用.
研究的目的:
- 在NAFLD的细胞模型中研究1,25(OH) 2D对肝脏脂肪积累和炎症的影响.
- 探索潜在的分子机制,包括NLRP3炎症酶和SIRT1通路的参与.
主要方法:
- 主要小鼠肝细胞 (AML-12) 用棕酸 (PA) 治疗,以诱导脂肪肝疾病.
- 肝细胞与1,25(OH) 2D同时治疗,以评估其保护作用.
- 测量了脂质积累,氧化应激,炎症 (NLRP3炎症组分) 和细胞损伤的关键标志物.
- 分析了SIRT1的表达和AMPK的酸化.
- 用SIRT1抑制剂进一步研究了SIRT1的作用.
主要成果:
- 1,25(OH) 2D治疗显著降低了PA治疗肝细胞中的甘油三含量,脂质过氧化和细胞损伤.
- 1,25(OH) 2D抑制了NLRP3炎症组分 (ASC,TXNIP,NLRP3,IL-1β),卡斯帕酶-1活性和IL-1β释放的表达.
- 用1,25(OH) 2D治疗的PA诱导肝细胞表现出SIRT1表达和AMPK酸化的增加.
- 抑制SIRT1减弱了1,25(OH) 2D对PA诱导的肝脂肪沉积和炎症的保护作用.
结论:
- 1,25-二氧维生素D在NAFLD的细胞模型中显示出对肝脏脂肪积累和炎症的保护作用.
- 这些有益的效果至少部分通过激活SIRT1通路来实现.
- 维生素D可能是治疗NAFLD和相关疾病的潜在治疗剂.
关键词:
NOD类受体家族的pyrin域含有3 (NLRP3) 的受体.脂肪的积累 脂肪的积累这是一种炎症炎症炎症炎症.非酒精性脂肪肝疾病 (NAFLD) 是一种非酒精性脂肪肝疾病.塞尔图林1 (SIRT1) 是一个类型.维生素D是维生素D的重要组成部分.更多相关视频
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