对HucMSCs,外体和条件介质对NASH的影响的比较
Chenchen Liang1, Siyuan Gao2, Jianpeng Gao3
1School of Public Health, Dali University, Dali, 671013, Yunnan, China.
Scientific reports
|October 27, 2023
概括
人类带介质干细胞外体 (HucMSCs-Ex) 在非酒精性脂肪肝炎 (NASH) 模型中有效降低肝脏脂肪积累和炎症. 这些外体通过AMPK/mTOR途径促进自,逆转NASH的进展.
科学领域:
- 干细胞生物学 干细胞生物学
- 肝病学 肝病学是一种肝病学.
- 胃肠病学 胃肠病学
背景情况:
- 非酒精性脂肪肝炎 (NASH) 是一种进展性肝病,其特征是脂肪积累和炎症.
- 目前对NASH的治疗方法有限,需要新的治疗策略.
- 介质干细胞 (MSC) 和它们衍生的外体在再生医学中表现有前途.
研究的目的:
- 研究人类带介质干细胞 (HucMSCs),外体细胞 (HucMSC-Ex) 和条件介质 (CM) 在肝细胞和纳氏病小鼠模型中的脂质储存方面的治疗潜力.
- 阐明潜在的机制,重点关注自途径 (EI24/AMPK/mTOR) 和炎症标志物.
主要方法:
- 已建立的脂质储存模型使用AML12肝细胞与油酸 (OA) 和棕酸 (PA) 处理.
- 在C57BL/6小鼠中诱导的非酒精性脂肪肝炎 (NASH) 使用高脂肪 metionin-choline 缺乏 (HFMRCD) 饮食.
- 使用Oil Red O染色,H&E染色,Mason染色,西部斑点和qPCR来分析脂质沉积,肝脏形态,炎症和途径表达的治疗效果.
主要成果:
- 与模型组相比,HucMSC-Ex在肝细胞中显示出更显著的脂质滴积累抑制.
- 在体内,HucMSC-Ex治疗降低了NASH活动得分,并通过减少真空细胞退化,脂肪沉积和原沉积来改善肝脏组织形态.
- 治疗调节了炎症因素,并改变了AMPK/mTOR和EI24相关的自道.
结论:
- HucMSCs,HucMSC-Ex和CM可以通过AMPK/mTOR或EI24相关的自途径促进肝细胞和NASH小鼠的自.
- 这些疗法可以缓解脂质沉积,原沉积和炎症,从而逆转NASH的进展.
- 在NASH治疗中,HucMSC-Ex代表了一种有前途的治疗剂.
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