罗宾因通过AKT/GSK3β通路减弱心脏氧化应激诱导的内细胞网膜依赖性亡
N Abhirami1, V A Aswathy2, Janeesh Plakkal Ayyappan3,4
1Translational Nanomedicine and Lifestyle Disease Research Laboratory, Department of Biochemistry, University of Kerala, Kariavattom campus, Thiruvananthapuram, 695034, Kerala, India.
Scientific reports
|October 15, 2025
概括
罗宾因通过减少氧化应激和内质网膜应激来保护心脏细胞免受异二醇造成的损伤. 这种天然化合物抑制了细胞亡,保持了心肌细胞的功能和生存.
科学领域:
- 心血管生物学 心血管生物学
- 药理学 药理学是指药理学的学科.
- 细胞应激反应的应激反应
背景情况:
- 心肌损伤通常是由过度的β-上腺素刺激引起的,比如来自异二醇 (ISO).
- 异二醇诱导反应性氧物种 (ROS) 生产,导致细胞内网膜 (ER) 应激,亡,以及心肌细胞的生存信号受损.
- 目前用于心肌损伤的现有治疗方法缺乏针对这些特定细胞通路的有针对性的机制.
研究的目的:
- 为了研究罗宾因 (Rob) 对异二醇 (ISO) 诱导的心肌损伤的心脏保护潜力.
- 阐明罗宾因对心肌细胞中氧化应激,ER应激和亡的作用的分子机制.
- 评估罗宾在体外 (H9c2细胞) 和体内 (老鼠) 的ISO诱导心脏损伤模型中的疗效.
主要方法:
- 心脏组织的组织学检查.
- 测量氧化剂和抗氧化剂水平.
- 对心脏标记酶的检测.
- 分子分析包括聚合酶链反应 (PCR) 和西部斑点测试,以评估与ER压力和亡相关的蛋白质表达.
主要成果:
- 罗宾因治疗显著降低了ISO诱导的ROS生成和心肌细胞中的亡.
- 罗宾因保留了心肌细胞形态,并以剂量依赖的方式改善了细胞存活率.
- 罗宾因调节了参与ER压力和亡的关键蛋白质,在细胞和动物模型中有效抑制了ER压力介导的亡.
结论:
- 罗宾因显示出强大的心脏保护作用,防止ISO诱导的心肌损伤.
- 罗宾因通过减少氧化应激,减轻ER应激和抑制亡来减轻心脏损伤.
- 罗宾因恢复ER功能和心肌细胞活力的能力表明,它有可能作为治疗条件的治疗剂,涉及β-上腺素过度刺激.
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