介质细胞干细胞-巨细胞交叉提供特定的外体载荷,以直接免疫反应许可的巨细胞在炎症反应期间
Yahaira Naaldijk1,2, Lauren S Sherman1,3, Natalia Turrini2
1Department of Medicine, Rutgers New Jersey Medical School (NJMS), Newark, NJ, USA.
Stem cell reviews and reports
|October 18, 2023
概括
介质干细胞 (MSCs) 影响参与神经炎症的微质细胞. 来自MSC的外体可以重新编程炎症性M1巨细胞并平衡M2巨细胞,为神经退行性疾病治疗提供了潜在的潜力.
科学领域:
- 神经科学是一个神经科学.
- 免疫学 免疫学 免疫学
- 再生医学是一种再生医学.
背景情况:
- 神经退行性疾病 (NDD) 构成了医疗保健方面的重大挑战,因寿命的增加而加剧.
- 神经炎症,包括激活的小质细胞和星球细胞,是NDD的关键特征.
- 基于干细胞的疗法,特别是使用介质干细胞 (MSC),在NDD治疗和组织再生方面表现有前途.
研究的目的:
- 调查MSCs在调节激活的微质细胞方面发挥作用的假设.
- 分析MSCs对巨细胞衍生的外体细胞释放和含量的影响.
- 探索MSC衍生的外体在调节神经炎症方面的潜力.
主要方法:
- 用U937细胞衍生的M1和M2巨细胞来建模微质细胞.
- 在巨细胞和MSC之间建立了非接触的共同培养系统.
- 用RNA测序和计算分析来研究外体体载荷和基因表达.
主要成果:
- MSCs显著诱导了M1和M2巨细胞的外体细胞释放,对M1的影响更大.
- RNA测序显示,外体内含有与炎症反应相关的转录,包括细胞因子和纯能受体.
- 计算分析支持MSCs抑制M1巨细胞炎症的能力,并建议MSC-M2外体可以重新平衡M2巨细胞.
结论:
- MSCs通过外体分泌来调节巨细胞极化和炎症反应.
- 来自MSC-M1巨共同培养的外体携带炎症载荷,可能会影响神经炎症.
- 来自MSC-M2巨共同培养的外体可以重新平衡M2巨炎症,这表明MSC在神经退行性疾病中的治疗机制.
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