RNF113A缺乏对氧化应激诱导的NRF2通路的影响
Namjoon Cho1, Yong-Eun Kim1, Yunkyeong Lee2
1Department of Biochemistry, Chungnam National University, Daejeon, Republic of Korea.
Animal cells and systems
|May 14, 2024
概括
环指蛋白113A (RNF113A) 的损失增加了氧化应激,并激活了NRF2通路. 这一发现为RNF113A相关的人类疾病提供了新的见解.
科学领域:
- 细胞生物学 细胞生物学
- 分子遗传学 分子遗传学
- 生物化学 生物化学
背景情况:
- 环指蛋白113A (RNF113A) 是一个E3泛基因酶和结合体组件.
- 基因突变的RNF113A与X链接的三性缩症 (TTD) 有关.
- 目前尚不清楚RNF113A的确切细胞功能.
研究的目的:
- 为了研究RNF113A.的细胞作用.
- 探索RNF113A损失对细胞通路的影响.
- 了解RNF113A对人类疾病的贡献.
主要方法:
- 在RNF113A淘汰赛 (KO) HeLa细胞上使用RNA测序进行转录组分析.
- 对NRF2蛋白位址和基因表达的分析.
- 评估反应性氧物种 (ROS) 水平,细胞死亡抵抗力和压力颗粒形成.
主要成果:
- 在RNF113AKO细胞中,NRF2通路基因上调,核NRF2增加.
- KO细胞表现出细胞内ROS升高,减少对H2O2诱导的细胞死亡的抵抗力,增强压力颗粒的形成.
- 谷氨水平在KO细胞下降,与减少GLUT1表达,葡萄糖吸收和ROS清理能力有关.
结论:
- 失去RNF113A会促进氧化应激,并激活NRF2通路.
- 缺少RNF113A会影响细胞的氧化还原平衡和葡萄糖代谢.
- 这些发现为RNF113A相关疾病提供了新的见解.
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