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Penghui Hu¹, Xiao Shan², Hongyuan Dong³

¹Department of Critical Care Medicine, Tianjin Medical University General Hospital, Tianjin 300052, China; Tianjin Institute of Immunology, State Key Laboratory of Experimental Hematology, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Department of Immunology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, China.

|March 17, 2025

概括

巨PHGDH可以防止与代谢功能障碍相关的脂肪肝疾病 (MAFLD). 缺少PHGDH会使MAFLD恶化,而过度表达会减轻这种情况,这表明PHGDH是治疗标.

科学领域:

肝病学肝病学是一种肝病学.
免疫学免疫学免疫学
代谢疾病代谢疾病

背景情况:

与代谢功能障碍相关的脂肪肝疾病 (MAFLD) 是一种进展性疾病,治疗选择有限.
肝脏糖酸脱酶 (PHGDH) 是血清素生物合成的关键,影响MAFLD,但其在巨细胞中的作用尚不清楚.

研究的目的:

研究巨PHGDH在MAFLD的发展和进展中的作用.
探索PHGDH作为MAFLD的潜在治疗点.

主要方法:

棕酸 (PA) 处理以诱导巨细胞中的脂毒性.
产生髓状细胞特异性PHGDH淘汰小鼠.
腺相关病毒 (AAV) 介导的PHGDH过度表达在肝脏巨细胞中.
对炎症信号通路 (TAK1,NF-κB,MAPK) 的分析.

主要成果:

棕酸增加了巨细胞的PHGDH表达.
巨细胞中的PHGDH缺乏会加剧PA诱导的炎症和小鼠的MAFLD进展.
PHGDH与TAK1相互作用,抑制TAK1/TAB1复合体的形成和下游信号传输.
在小鼠中,巨PHGDH过度表达改善了MAFLD.

结论:

巨细胞PHGDH在MAFLD的发病过程中起着保护作用.
向巨PHGDH可能为MAFLD和代谢功能障碍相关的脂肪肝炎 (MASH) 提供一种新的治疗策略.

关键词:

CP: 免疫学免疫学 CP:新陈代谢过程中的新陈代谢.巨细胞是一个巨细胞.与代谢功能障碍相关的脂肪肝疾病.糖酸脱酶酶的使用转化生长因子β激活激酶1的转化生长因子1β激活激酶1

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