介酶干细胞衍生的外体细胞通过准/SMO信号传递来缓解肝纤维化
Ruobin Zong1, Yan Zheng2, Yufei Yan1
1Department of Physiology, School of Basic Medical Sciences, Wuhan University, 115 Donghu Road, Wuhan, 430071, China.
Hepatology international
|August 14, 2024
概括
人类带衍生中介质干细胞 (UC-MSCs) 和它们的外体在治疗肝纤维化方面表现有前途. UC-MSC外基因组通过抑制/SMO信号通路来保护肝脏,减少炎症和纤维化.
科学领域:
- 肝病学 肝病学是一种肝病学.
- 干细胞生物学 干细胞生物学
- 分子医学是分子医学.
背景情况:
- 肝纤维化缺乏经批准的药物治疗方法,尽管在理解纤维生成方面取得了进展.
- 介质细胞干细胞 (MSCs) 对组织损伤和炎症具有治疗潜力.
- 研究了人类带衍生MSCs (UC-MSCs) 对于它们在肝纤维化中的保护作用.
研究的目的:
- 评估UC-MSCs对乙胺诱导的肝纤维化的保护作用.
- 阐明UC-MSC在肝纤维化中的作用的潜在机制.
- 评估UC-MSC衍生的外体的治疗潜力 (UC-MSCs-Exo).
主要方法:
- 在小鼠中使用硫乙胺 (TAA) 诱导肝纤维化.
- 小鼠接受了UC-MSCs或UC-MSCs-Exo的尾静脉注射.
- 对肝脏组织进行了组织学分析,以评估治疗效果.
主要成果:
- 使用UC-MSC降低了肝酶 (ALT,AST) 和减弱了肝炎和纤维化.
- UC-MSCs-Exo证明了与UC-MSCs可比的治疗效果.
- UC-MSCs-Exo降低了对/SMO信号的调节,抑制了肝星细胞激活.
- SMO激动剂 (SAG) 治疗逆转了UC-MSCs-Exo的抗纤维效应.
结论:
- 来自UC-MSC的外体具有治疗肝纤维化的治疗潜力.
- 该机制涉及/SMO信号通路的抑制.
- UC-MSCs-Exo为肝纤维化提供了一个有前途的无细胞治疗策略.
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