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人类带介质干细胞衍生外细胞囊泡载有埃莫丁缓解肠道损伤在急性胰腺炎

Siyao Liu^1,2, Zhihong Xu^1,2, Xiong Liu^1,2

¹Department of Emergency, School of Medicine, the First Affiliated Hospital of Xiamen University, Xiamen University, Xiamen, China.

Biotechnology journal

|February 16, 2026

概括

工程外细胞囊泡 (EVs) 提供化合物埃莫丁,以保护肠道屏障免受急性胰腺炎 (AP). 这种新疗法减少了炎症和损伤,为AP诱导的肠损伤提供了有前途的治疗方法.

科学领域:

生物医学工程生物医学工程
细胞生物学细胞生物学
胃肠病学胃肠病学

背景情况:

急性胰腺炎 (AP) 导致肠道屏障破坏,导致严重的全身并发症.
埃莫丁是一种强大的生物活性化合物,由于生物可用性差,其治疗用途有限.
需要有针对性的输送系统来提高emodin对肠道保护的有效性.

研究的目的:

为了设计人类带介质干细胞衍生的细胞外囊泡 (hUC-MSC-EVs) 以有针对性的输送emodin.
评估EVs-Emodin在保护肠道屏障免受AP诱导的损伤方面的有效性.
研究EVs-Emodin抑制炎症和氧化应激的潜在机制.

主要方法:

使用TNF-α刺激的肠上皮细胞 (CCD-841CON) 的体外研究.
在体内研究使用taurocholate诱导的AP小鼠模型.
评估NLRP3炎症酶激活,烧灭,活性氧物种 (ROS),灭和炎症性细胞因子.
评估肠道屏障完整性标记物 (Occludin,ZO-1),组织损伤,上皮再生和线粒体损伤.

主要成果:

在实验室中,EVs-Emodin协同抑制了NLRP3炎症酶激活,热,ROS产生和炎症性细胞因子.
EVs-Emodin恢复了细胞活力,并减少了肠道上皮细胞的亡.
在AP小鼠中静脉输入EVs-Emodin治疗减轻了全身炎症和肠道组织损伤.
EVs-Emodin促进了Occludin和ZO-1的表达,促进了上皮再生,并在体内减轻了线粒体损伤.

结论:

hUC-MSC-EV有效地克服了emodin的输送限制,增强了其治疗潜力.
EVs-Emodin提供了一种协同策略,通过抑制NLRP3 / pyroptosis和减轻氧化应激来保护肠道屏障.
这种基于EV的工程疗法为治疗与AP相关的肠损伤提供了有前途的方法.

关键词:

在急性胰腺炎中,埃莫迪因 (Emodin) 是一种催产素.肠道损伤肠道损伤肠道损伤在NLRP3炎症酶体中,NLRP3炎症 hUC-MSC衍生的细胞外囊泡.热灭症是什么?

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