狗中介细胞干细胞衍生外细胞囊泡减轻亚托邦性皮肤炎
Byong Seung Cho1, Sung-Bae Kim2, Sokho Kim3
1ExoCoBio Exosome Institute (EEI), ExoCoBio Inc., Seoul 08594, Republic of Korea.
Animals : an open access journal from MDPI
|July 14, 2023
概括
狗脂肪衍生干细胞外体 (cASC-EVs) 通过减少炎症和IgE水平,有效治疗犬类亚托皮炎 (AD). 这些外体体没有表现出系统性毒性,为犬类AD提供了有前途的无细胞疗法.
科学领域:
- 兽医皮肤病学 兽医皮肤病学
- 再生医学是一种再生医学.
- 免疫学 免疫学 免疫学
背景情况:
- 无氧性皮肤炎 (AD) 是狗的慢性炎症性皮肤疾病,通常与全身炎症有关.
- 之前的研究表明,来自人类脂肪组织的介质干细胞外细胞囊泡 (ASC-EVs) 可以减少AD症状.
- 狗的AD需要有效和安全的治疗选择.
研究的目的:
- 在犬类AD小鼠模型中评估犬类ASC衍生的外体细胞 (cASC-EVs) 的疗效.
- 评估cASC-EVs的体内毒性和器官向性.
- 探索 miRNAs 在 cASC-EV 中调节炎症反应中的作用.
主要方法:
- 狗类ASC及其衍生的EV (cASC-EV) 的隔离和表征.
- 在小鼠模型中诱导AD类症状,并使用cASC-EVs进行治疗.
- 评估临床症状,血清IgE,耳朵厚度,细胞因子/化学因子水平,以及体内毒性研究.
- 在cASC-EV中对miRNA含量的下一代测序 (NGS) 分析.
主要成果:
- cASC-EVs显著改善了AD类皮肤炎,降低了耳朵厚度和血清IgE水平.
- 用cASC-EVs治疗剂量依赖性降低了关键的炎症性细胞因子,如IL-4和IFN-γ.
- 在ICR小鼠的毒性研究中没有观察到系统性毒性或器官向性.
- miRNA分析显示了cASC-EVs中的抗炎miRNAs.
结论:
- 狗的ASC-EV通过抗炎机制有效减轻狗的AD症状.
- 治疗效果部分通过抗炎miRNAs的转移进行中介.
- cASC-EVs代表了一种安全而有前途的无细胞治疗策略,用于治疗犬类亚托皮炎.
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