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脂肪酸衍生干细胞调节线粒体动力学,以缓解HFF-1细胞的衰老

Qi Luo¹, Ling Liu²

¹Department of Plastic Surgery, The Affiliated Nanhua Hospital, Hengyang Medical School, University of South China, Hengyang, 421002, Hunan, China.

In vitro cellular & developmental biology. Animal

|January 27, 2025

概括

脂肪酸衍生干细胞 (ASC) 通过调节线粒体功能,改善细胞增殖,减少炎症和氧化应激来减缓细胞衰老. 联合ASC和线粒体裂变抑制进一步增强了这些抗衰老作用.

科学领域:

细胞生物学细胞生物学
干细胞疗法是一种干细胞疗法.
线粒体动力学的动力学

背景情况:

细胞衰老的特点是线粒体功能受损,氧化应激增加和炎症.
脂肪基衍生干细胞 (ASC) 在再生医学和调节细胞过程方面显示出潜力.
线粒体动力学,包括裂变和融合,在细胞健康和衰老中发挥着关键作用.

研究的目的:

研究脂肪衍生干细胞 (ASC) 如何调节线粒体结构和功能以减缓细胞衰老.
确定ASC和线粒体分裂抑制对衰老的人类前皮纤维细胞-1 (HFF-1) 细胞的影响.
阐明ASCs缓解衰老相关细胞功能障碍的机制.

主要方法:

在HFF-1细胞中建立过氧化 (H2O2) 诱导的细胞衰老模型.
用ASC或Mdivi-1 (线粒体分裂抑制剂) 治疗.
评估细胞增殖 (MTT),线粒体膜潜力,亡,细胞循环 (流细胞计),ATP生产,炎症标记 (ELISA),氧化应激标记 (GSH,MDA,SOD) 和衰老水平 (β-galactosidase染色).
使用西式涂抹和qRT-PCR对蛋白质和mRNA表达的分析.

主要成果:

衰老的HFF-1细胞表现出减少的增殖,增加的亡,细胞循环停止,较低的线粒体潜能,以及炎症和氧化应激标志物的升高.
用ASC或Mdivi-1治疗改善了细胞增殖,减少了细胞亡和细胞循环停止,增强了线粒体功能,并减少了炎症和氧化应激.
与ASCs和Mdivi-1同时治疗表明在缓解细胞衰老方面具有协同效应.

结论:

ASCs有效调节线粒体动力学,促进融合和抑制裂变,从而改善线粒体功能和减少衰老.
在HFF-1细胞中,ASCs减轻衰老诱导的细胞周期停止,细胞亡,炎症和氧化应激.
ASCs代表了一种有前途的治疗策略,通过准线粒体健康来对抗细胞衰老.

关键词:

脂肪酸衍生干细胞的干细胞.衰老的衰老衰老的衰老细胞衰老细胞衰老线粒体动力学的动态

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