在iPSC衍生的巨细胞中NOD/RIPK2信号的概述
Mozhgan Dehghan Harati1, Jim King2, Simon Langer1
1Department of Drug Discovery Sciences, Boehringer Ingelheim Pharma GmbH & Co. KG, 88397 Biberach an der Riss, Germany.
SLAS discovery : advancing life sciences R & D
|September 28, 2024
概括
人类诱导的多能干细胞衍生巨细胞 (IDM) 为研究炎症提供了比THP-1细胞更好的模型. 优化差异化增加了产量,为炎症疾病研究提供了宝贵的工具.
科学领域:
- 免疫学 免疫学 免疫学
- 干细胞生物学 干细胞生物学
- 细胞生物学 细胞生物学
背景情况:
- 人类诱导的多能干细胞衍生巨细胞 (IDM) 是研究炎症的一个有希望的体外模型.
- 当前的差异化协议可能会限制IDM的产量和适用性.
- 了解核酸结合寡聚化域 (NOD) 和受体相互作用的血清蛋白/三蛋白蛋白激酶2 (RIPK2) 信号传递对于自身免疫性疾病研究至关重要.
研究的目的:
- 优化人类诱导多能干细胞衍生巨细胞 (IDM) 的分化协议.
- 描述IDM在炎症通路中的生物相关性,特别是NOD/RIPK2信号传导.
- 为了比较IDM对单细胞衍生巨细胞 (MDM) 和THP-1细胞的反应.
主要方法:
- 优化人类诱导的多能干细胞 (iPSC) 差异化协议,以提高骨髓原生细胞的产量.
- 衍生IDM的表征,重点关注核酸结合的寡合化域 (NOD) 和受体相互作用的氨酸/氨酸蛋白激酶2 (RIPK2) 信号.
- 对IDM,单细胞衍生巨细胞 (MDM) 和THP-1细胞进行关于炎症概况和对RIPK2抑制的反应的比较分析.
主要成果:
- 通过协议优化,骨髓原体产量增加了六倍.
- IDM 显示出一种促炎性化学和细胞的特征,与 MDM 非常相似,表现优于 THP-1 细胞.
- 在IDM和MDM中观察到RIPK2抑制剂对瘤亡因子α (TNF-α) 的类似药理作用.
- 在NOD1/2刺激和RIPK2抑制后,IDM和MDM表现出可比的转录和通路配置文件.
结论:
- 改进的IDM差异化协议显著提高了骨髓细胞生产产量.
- IDM作为一个生理上相关的巨模型,用于研究炎症性疾病.
- 优化的IDM为体外炎症和自身免疫路径的研究提供了MDM的有价值替代品.
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