作为NRF2激动剂,硫福拉通过调节HDAC6活动来缓解急性肝衰竭中的铁亡
Yan-Qiong Zhang1, Chun-Xia Shi1, Dan-Mei Zhang1
1Department of Infectious Diseases, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei Province, China.
Journal of integrative medicine
|August 24, 2023
概括
硫氨酸 (SFN) 通过抑制细胞死亡途径铁亡,从而防止急性肝衰竭 (ALF). 这种保护作用是通过SFN调节基因组脱乙酶6 (HDAC6) 活性来实现的.
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
- 生物化学 生物化学
背景情况:
- 急性肝衰竭 (ALF) 呈现严重的功能障碍和高死亡率,治疗选择有限.
- 硫福拉 (SFN),核因子E2相关因子2 (NRF2) 激动剂,表现出抗炎,抗氧化和抗癌性质,在各种疾病中具有已知的保护作用.
- SFN在缓解ALF方面的潜力及其潜在机制需要进行调查.
研究的目的:
- 在ALF模型中研究SFN的保护作用.
- 阐明SFN在ALF中发挥保护作用的分子机制,重点关注铁和HDAC6调节.
主要方法:
- 在试验室和体内使用脂多糖和D-银胺诱导了急性肝损伤.
- 为了评估保护作用和机制,施用了SFN和基因素脱乙酶6 (HDAC6) 抑制剂ACY1215.
- 细胞活力,氧化应激和铁亡的关键标志物,包括LDH,Fe2+,GSH,MDA,NRF2,GPX4,ACSL4和SLC7A11,被量化.
主要成果:
- 通过降低LDH,Fe2+,MDA和ACSL4的调节,SFN治疗激活了NRF2并显著抑制了铁亡,同时增加了GSH,GPX4和SLC7A11.
- 在ALF模型中,SFN的使用导致HDAC6的表达减少.
- 与HDAC6抑制剂 (ACY1215) 联合使用增强了SFN对铁亡的抑制作用,这表明SFN通过HDAC6调节起作用.
结论:
- SFN显示出对ALF的显著保护作用.
- 该机制涉及抑制铁灭,可能通过降低HDAC6活性来调节.
- SFN代表了ALF的一个有前途的治疗剂,通过NRF2-HDAC6-ferroptosis通路起作用.
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