在小鼠胃中的甲基塑料再生需要反应性氧物种通路
Zhi-Feng Miao1, Jing-Xu Sun1, Xuan-Zhang Huang1
1Department of Surgical Oncology and General Surgery, The First Hospital of China Medical University, 155 N Nanjing Street, Shenyang, Liaoning, China; Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors, Ministry of Education, China Medical University, No.77 Puhe Road, Shenyang, Liaoning, China; Institute of Health Sciences, China Medical University, No.77 Puhe Road, Shenyang, Liaoning, China.
成熟的胃主要细胞通过化重编程成为SPEM细胞. 这一过程需要PGC1α和NRF2来管理活性氧物种和线粒体活动,防止胃损伤和再生期间通过铁亡的细胞死亡.
科学领域:
- 细胞生物学 细胞生物学
- 胃肠病学 胃肠病学
- 代谢调节 代谢调节 代谢调节 代谢调节
背景情况:
- 毛囊性转化症涉及到成熟的胃主要细胞,它们通过白色化病重编程成性多表达转化症 (SPEM) 细胞.
- 了解白内障病的分子机制对于理解胃损伤反应和再生至关重要.
研究的目的:
- 通过单细胞RNA测序,阐明在小鼠胃损伤中调节白血病的高分辨率机制.
- 调查反应性氧物种 (ROS),线粒体活性和新陈代谢调节者的作用.
主要方法:
- 伤害后小鼠胃的单细胞RNA测序 (scRNA-seq).
- 分析Ppargc1a (Pgc1α) 和Nf2el2 (Nrf2) 在ROS和线粒体调节中的作用.
- 研究铁亡途径,包括囊载体SLC7A11 (xCT) 和GPX4.
主要成果:
- 损伤诱导ROS和协调的代谢/线粒体变化,需要PGC1α和NRF2来治疗神经病.
- 由于ROS和线粒体控制受损,PGC1α的丧失会导致 paligenotic 细胞的铁亡.
- 抑制SLC7A11 (xCT) 也促进铁,突出显示了脂质解毒的作用.
- 通过PGC1α介导的新陈代谢和线粒体调节在胰腺状细胞色症中保持.
结论:
- 由PGC1α和NRF2调节的代谢和线粒体适应,对于胃中损伤反应,再生和代谢是必不可少的.
- 铁亡是异构细胞中关键的细胞死亡途径,当ROS和线粒体平衡被破坏时.
- 这些发现揭示了一个保存的机制,将新陈代谢调节与不同组织的细胞重编程和再生联系起来.
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