通过触发PANoptosis引起的三甲基胺N氧化物慢性损伤
1Department of Clinical Diagnostics, Hebei Medical University, Hebei, China. wuym@hebmu.edu.cn.
Physiological research
|August 31, 2025
概括
三甲基胺N-氧化物 (TMAO) 通过诱导PANoptosis,一种涉及热,细胞和亡的受调细胞死亡形式,导致纤维化和功能障碍,导致脏疾病.
科学领域:
- 生物化学
- 肝脏病学
- 细胞生物学
背景情况:
- 三甲基胺N氧化物 (TMAO) 与病的进展有关.
- 由TMAO引起的损伤的确切机制在很大程度上是未知的.
- 调节的细胞死亡途径与各种器官损伤有关.
研究的目的:
- 研究调节细胞死亡在三甲基胺N-氧化物 (TMAO) 诱导的慢性损伤中的作用.
- 为了阐明TMAO在脏中激活的特定细胞死亡途径.
主要方法:
- 通过每日三个月内内注射TMAO,建立了一种慢性损伤的小鼠模型.
- 通过测量血肌和血尿素度来评估功能.
- 通过马森染色和西方涂抹分析了病理,纤维化和参与亡,亡,热亡和铁代谢的关键蛋白质的表达.
主要成果:
- 使用TMAO显著增加了血肌和血尿酸水平,表明功能受损.
- 在TMAO治疗组中,组织学分析显示纤维化增加.
- 西部斑块分析显示与PANoptosis相关的蛋白质 (caspase-8,NLRP3,IL- 1beta,GSDMD,ZBP1,RIP3,MLKL) 和铁同位素 (TFR1,FTH,FPN,NRF2,GPX4) 的表达显著上升,而铁或MDA水平没有变化.
结论:
- PAN亡,包括亡,亡和亡,是TMAO诱导慢性损伤的关键机制.
- 由TMAO引起的损伤涉及复杂的细胞死亡途径和铁代谢调节者的改变.
- 这些发现为TMAO相关脏病的发病提供了新的见解,并提出了潜在的治疗点.
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