尼古丁胺胺腺氨酸二核酸 复原 败血症 骨髓 介质干细胞
Xin Xia1, Kun Zhou1, Lin-Ying An1
1Department of Hematology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, China.
World journal of stem cells
|March 10, 2025
概括
败血症加快骨髓中酶干细胞 (BMSC) 的衰老,损害自我更新和造血支持. 尼古丁胺胺氨基二核酸 (NAD) 治疗通过向NAD/SIRT3/超氧化物失调酶通路,使BMSCs复苏.
科学领域:
- 干细胞生物学 干细胞生物学
- 败血症的研究研究.
- 衰老机制 衰老的机制
背景情况:
- 败血症会导致系统性损伤,但其对骨髓中介细胞干细胞 (BMSCs) 的影响还未得到充分研究.
- BMSCs对于骨和造血元恒温至关重要,并且它们的败血症诱导损伤是未知的.
研究的目的:
- 调查败血症对BMSC的影响.
- 阐明导致败血症的BMSC功能障碍背后的机制.
主要方法:
- 从健康的捐赠者和败血症患者中比较BMSCs的自我更新,分化和造血支持.
- 使用衰老标志物和活性氧物种评估BMSC衰老.
- 评估了尼古丁胺胺氨基二核酸 (NAD) 治疗对败血性BMSCs的影响.
主要成果:
- 败血性BMSCs表现出减少的增殖,受损的骨质原和脂肪原分化,以及降低的造血支持.
- 败血症加速了BMSC的衰老,由增加的衰老标志物和活性氧物种所表明.
- 纳德治疗部分恢复了BMSC功能,增加了Sirtuin 3 (SIRT3) 表达,并改善了线粒体功能.
结论:
- 败血症加快了BMSC的衰老,导致自我更新,骨质生成和造血支持受损.
- NAD/SIRT3/超氧化物脱酶通路是导致败血症的BMSC衰老的一个关键机制.
- NAD治疗提供了一种潜在的治疗策略,可以逆转败血症引起的BMSC功能障碍.
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