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肝细胞FOXA3的损失改善了超脂性LDLR缺乏的小鼠中的MASH和动脉样硬化
Hui Wang1,2, Shuwei Hu1, Jiayou Wang1
1Department of Internal Medicine and the Translational Cardiovascular Research Center, University of Arizona College of Medicine-Phoenix, Phoenix, AZ 85004, USA.
International journal of molecular sciences
|February 13, 2026
概括
在标准小鼠中,肝脏叉头盒蛋白A3 (FOXA3) 的损失没有影响代谢功能障碍相关的脂肪肝炎 (MASH). 然而,它在高脂肪饮食模型中保护MASH,高脂血症和动脉样硬化.
科学领域:
- 肝病学 肝病学是一种肝病学.
- 代谢性疾病研究研究.
- 分子生物学分子生物学
背景情况:
- 叉头盒蛋白A3 (FOXA3) 是一种转录因子,参与了代谢调节.
- 肝脏FOXA3水平降低在肥胖和代谢功能障碍相关的脂肪肝炎 (MASH).
- 在代谢功能障碍相关的肝病 (MASLD) 和动脉样硬化中FOXA3的作用尚未完全理解.
研究的目的:
- 研究肝细胞FOXA3在MASLD/MASH.发展中的作用.
- 为了确定肝细胞FOXA3是否在超脂血症小鼠模型中影响动脉样硬化.
主要方法:
- 在C57BL/6和Ldlr缺陷小鼠中,肝细胞Foxa3的遗传失活化.
- 西方饮食养诱导MASLD/MASH和高脂血症.
- 分析肝脏基因表达,血脂质和动脉样硬化病变的发展.
主要成果:
- 肝细胞Foxa3失活没有影响C57BL/6小鼠的西方饮食诱导的MASLD/MASH.
- 在西方饮食中食Ldlr缺乏的小鼠中,肝细胞Foxa3减弱的MASH,高脂血症和动脉样硬化损失.
- 肝细胞FOXA3缺乏减少了肝脏脂原性,促炎性和纤维原性基因表达,并降低了循环中的胆酸水平.
结论:
- 肝细胞FOXA3对标准小鼠的MASLD/MASH发育没有必要.
- 肝细胞FOXA3的损失在高脂血症小鼠中提供了对MASH,高脂血症和动脉样硬化的保护.
- 向FOXA3可能为代谢和心血管疾病提供治疗策略.
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