抑制ALK3介导的信号通路可以防止乙氨基引起的肝损伤
Patricia Marañón1, Esther Rey1, Stephania C Isaza1
1Unidad de Investigación, Hospital Universitario Santa Cristina, Instituto de Investigación Sanitaria Princesa (IIS-IP), Madrid, Spain.
Redox biology
|February 24, 2024
概括
通过抑制ALK3信号传递,通过减少细胞死亡和氧化应激,保护免受乙氨基诱导的肝损伤. 这表明骨形态遗传蛋白 (BMP) 信号作为急性肝衰竭 (ALF) 的潜在治疗点.
科学领域:
- 肝病学 肝病学是一种肝病学.
- 分子生物学分子生物学
- 药理学 药理学是指药理学的学科.
背景情况:
- 乙氨基 (APAP) 过量服用是急性肝衰竭 (ALF) 的主要原因之一.
- 骨形态遗传蛋白 (BMP) 信号通路,特别是ALK2和ALK3受体,与细胞对损伤的反应有关.
- 了解BMP受体在APAP引起的肝毒性中的作用,对于开发新疗法至关重要.
研究的目的:
- 研究BMP I型受体ALK2和ALK3在APAP诱导的肝损伤中的作用.
- 阐明APAP肝毒性中细胞死亡,存活和氧化应激背后的分子机制.
- 评估抑制ALK3信号传递在APAP诱导的ALF中的治疗潜力.
主要方法:
- 利用培养的人类肝细胞衍生的 (Huh7) 细胞,用ALK受体抑制剂和lentiviral介导的基因沉默治疗.
- 使用APAP诱导的肝毒性小鼠模型.
- 评估了细胞死亡 (和亡),反应性氧物种 (ROS) 生成和MAPK酸化 (JNK,P38).
主要成果:
- 使用药理学抑制剂DMH2或基因沉默来抑制ALK3信号传递,显著降低了Huh7细胞中APAP诱导的亡和亡.
- 抑制ALK3改善了ROS生成,并减少了ROS介导的JNK和P38 MAPK酸化.
- 在APAP诱导的ALF小鼠模型中用DMH2进行后期治疗显著减少了肝损伤,亡和氧化应激.
结论:
- ALK3受体信号传递在调解APAP诱导的肝毒性方面发挥着至关重要的作用.
- 抑制ALK3对APAP诱导的肝损伤和氧化应激产生保护作用.
- BMP信号代表了急性肝衰竭治疗的有希望的新型药理学标.
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