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Necrosis01:16

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Necrosis is considered as an “accidental” or unexpected form of cell death that ends in cell lysis. The first noticeable mention of “necrosis” was in 1859 when Rudolf Virchow used this term to describe advanced tissue breakdown in his compilation titled “Cell Pathology”.
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相关实验视频

Updated: Sep 9, 2025

Author Spotlight: Tracing the Ferroptotic Signatures and Cell Death Dynamics in Medulloblastoma for Advanced Therapeutics
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通过激活HO1/费里通路,NFE2L2可以防止索拉芬尼诱导的费洛和心脏毒性.

Hui Jiang1, Yan Su2, Yinglong Hou3

  • 1Department of Cardiology, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, Shandong 250014, China; Department of Pediatrics, The Second Hospital of Shandong University, Jinan, Shandong 250012, China.

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概括

转录因子NFE2L2通过激活HO-1/ ferritin通路来保护Sorafenib诱导的心脏毒性,为缓解药物诱导的心脏损伤提供了新的治疗策略.

关键词:
药物诱导的心脏毒性铁素铁症一个HO-1在 NFE2L2索拉芬尼

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科学领域:

  • 心脏病学
  • 分子生物学
  • 药理学

背景情况:

  • 索拉菲尼布是一种有效的癌症治疗方法,但会引起心脏毒性.
  • 一个转录因子NFE2L2调节细胞应激和铁平衡.
  • 药物引起的心脏损伤的原因之一是细胞死亡途径 - - 铁亡.

研究的目的:

  • 研究NFE2L2在Sorafenib引起的心脏毒性的作用.
  • 阐明NFE2L2的保护作用的分子机制.
  • 探索针对NFE2L2的治疗策略,以获得更安全的Sorafenib治疗.

主要方法:

  • 在接受Sorafenib治疗的心肌细胞中研究了NFE2L2表达.
  • 使用铁抑制剂 (Fer-1,DFO) 和NFE2L2倒置剂/激动剂 (SFN).
  • 分析了脂质过氧化,活性氧物种 (ROS) 和HO-1/费里轴.
  • 检查了NFE2L2激活通路 (ER应力,EIF2AK3).
  • 在Sorafenib诱导的心脏毒性的体内评估SFN疗效.

主要成果:

  • 索拉非尼增加了心肌细胞中的NFE2L2表达,与铁死有关.
  • 降低NFE2L2会加剧索拉费尼布诱导的铁死 (增加脂质过氧化,ROS).
  • NFE2L2激活HO-1/费里轴,缓解氧化应激并促进铁的平衡.
  • 索拉非尼通过ER压力 (EIF2AK3) 而不是KEAP1途径激活NFE2L2.
  • 在体内,SFN治疗缓解了索拉费尼布诱导的铁和心脏毒性.

结论:

  • 在Sorafenib引起的心脏毒性方面,NFE2L2起着至关重要的保护作用.
  • NFE2L2-HO-1/ferritin轴是缓解铁和氧化应激的关键机制.
  • 这种依赖于ER压力的NFE2L2激活提供了一个新的治疗点.
  • 像SFN这样的NFE2L2激动剂是提高Sorafenib安全性的有希望的策略.