睡眠不足会通过铁灭症诱导肠道损伤
Zi-Jian Zheng1,2,3, Hai-Yi Zhang1,2,3, Ya-Lin Hu1,2,3
1State Key Laboratory for Animal Disease Control and Prevention, South China Agricultural University, Guangzhou, China.
Journal of pineal research
|July 8, 2024
概括
睡眠不足会通过诱导铁亡,从而导致肠道损伤,而这种过程可以通过黑激素来预防. 这项研究确定铁亡是睡眠剥夺引起的肠道损伤的关键机制.
科学领域:
- 细胞生物学 细胞生物学
- 胃肠病学 胃肠病学
- 睡眠医学 睡眠医学
背景情况:
- 睡眠不足 (SD) 与严重的健康问题有关,包括肠道损伤.
- 以前,SD造成的肠道损伤被归因于活性氧物种 (ROS),但新的证据表明更早的机制.
- 在SD期间显著的ROS积累之前,小杯细胞损伤在肠道中发生.
研究的目的:
- 调查睡眠剥夺引起的肠道损伤的潜在机制.
- 为了确定涉及SD相关肠道损伤的特定分子通路.
- 探索黑激素对SD诱导的肠道损伤的潜在保护作用.
主要方法:
- 在被睡眠剥夺的小鼠中进行的转录组和代谢组分析.
- 调查与铁灭相关的代谢物和信号通路.
- 评估黑激素对铁亡和肠道损伤的影响.
- 对ALOX15淘汰赛小鼠的分析,以证实其在ferroptosis中的作用.
主要成果:
- 患有SD的小鼠表现出与ferroptosis相关的丰富代谢物.
- 铁,特别是由ALOX15信号介导的脂质过氧化,被确定为肠道损伤的关键驱动因素.
- 黑色素治疗使小鼠免受铁性肠损伤.
- ALOX15淘汰赛小鼠受到SD诱导的铁亡和肠道损伤的保护.
结论:
- 睡眠不足通过铁亡途径诱导肠道损伤,先于ROS积累.
- 黑色素有效地通过抑制ALOX15介导的脂质过氧化来缓解SD诱导的肠损伤.
- 向铁和利用黑色素是一个有前途的治疗策略,用于预防睡眠不足状态的肠道损伤.
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