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核呼吸因子-1 (NRF1) 诱导作为一种强有力的策略,以阻止线粒体功能障碍和介质干细胞衰老

Hyunho Lee¹, Matteo Massaro¹, Nourhan Abdelfattah²

¹Department of Nanomedicine, Houston Methodist Research Institute, Houston, Texas, USA.

|December 25, 2024

概括

核呼吸因子-1 (NRF1) 过度表达可以促进线粒体功能,防止中酶体干细胞 (MSC) 衰老. 这增强了MSC的再生疗法潜力,并对抗衰老组织功能障碍.

科学领域:

细胞衰老细胞衰老
线粒体生物学线粒体生物学
再生医学是一种再生医学.

背景情况:

介酶干细胞 (MSCs) 对于再生疗法至关重要,但易受衰老的影响.
氧化应激和线粒体功能障碍驱动MSC衰老,损害它们的治疗功能.
衰老与组织衰老和高反应性氧物种 (ROS) 相关.

研究的目的:

调查核呼吸因子-1 (NRF1) 过度表达是否可以防止介质干细胞 (MSC) 衰老.
为了确定NRF1是否增强MSC代谢功能并减轻氧化应激诱导的衰老.

主要方法:

介酶干细胞 (MSC) 被核呼吸因子-1 (NRF1) 传递 RNA (mRNA) 感染.
单细胞RNA测序 (scRNA-Seq) 分析了基因表达变化.
为了评估NRF1的保护作用,MSC被暴露在过氧化 (H2O2) 和复制衰老模型中.

主要成果:

NRF1 mRNA 转染上调氧化酸化 (OXPHOS) 基因和抑制衰老路径.
NRF1增加了线粒体质量,减少了ROS的产生,并恢复了线粒体功能和ATP的产生.
过度表达NRF1降低了衰老标志物 (SA-β-gal,p53,p21,p16) 并保持了线粒体健康.

结论:

核呼吸因子-1 (NRF1) 诱导有效地减弱了介酶干细胞 (MSC) 衰老.
通过NRF1增强线粒体功能是改善再生医学MSC的可行策略.
通过NRF1介导的线粒体增强为老化相关疾病提供了潜在的治疗途径.

关键词:

介质细胞干细胞介质细胞干细胞线粒体生物发生是线粒体生物发生.线粒体功能障碍线粒体功能障碍核呼吸因子-1 (NRF1) 是一种核呼吸因子.氧化应激是一种氧化应激.衰老是一种老化.

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