以虹膜为媒介的KEAP1降解减轻了氧化应激,并改善了胰腺炎
Nan Tang1,2,3,4, Wendi Li3, Hezhen Shang2
1Dalian Medical University, Dalian, Liaoning, China.
Immunologic research
|January 17, 2025
概括
虹膜素水平在急性胰腺炎 (AP) 中降低,与疾病严重程度相关. 这项研究表明,虹素抑制KEAP1以对抗氧化应激,为AP提供了潜在的新疗法.
科学领域:
- 生物化学 生物化学
- 分子生物学分子生物学
- 病理生理学 病理生理学
背景情况:
- 氧化应激 (OS) 是急性胰腺炎 (AP) 发病的一个关键因素.
- 抗氧化剂细胞因子的虹膜素在AP中起着不清楚的作用.
- 现有的与AP相关的OS治疗方法有限.
研究的目的:
- 为了确定AP患者的虹膜素表达.
- 调查伊丽素在AP中减轻OS的机制.
- 探索伊丽素作为AP的潜在治疗剂.
主要方法:
- 在AP患者 (n=65) 中使用ELISA测量了血清虹膜素水平.
- 生物信息学分析确定了与AP相关的OS中的核心基因.
- 在体内 (小鼠AP模型) 和体内 (AR42J细胞) 实验中评估了素的疗效和机制.
- 分子对接验证了素和AP之间的共同目标.
主要成果:
- AP患者表现出显著降低的血清虹膜素水平,与疾病严重程度相反相关.
- 在小鼠AP模型中,Irisin的使用减少了活性氧物种 (ROS) 和炎症媒介.
- 虹膜素的抗氧化作用通过抑制KEAP1基因而得到介导,KEAP1基因在AP中被上调.
- 发现KEAP1表达的增加可以抵消素的保护作用.
结论:
- 降低素水平及其对KEAP1的抑制作用在AP病变发生过程中至关重要.
- 虹膜素的使用显示了通过减轻AP的OS和炎症的治疗潜力.
- 向虹膜素和KEAP1为治疗急性胰腺炎提供了一个新的治疗策略.
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