工程3D适应性免疫:使用流体网络和外周血液单核细胞的患者特异性淋巴瘤模型
Mei ElGindi1, Shaza Karaman1, Jeremy Teo1,2
1Laboratory for Immuno Bioengineering Research and Applications, Division of Engineering, New York University Abu Dhabi, Abu Dhabi, POBox 129188, UAE.
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
|December 16, 2025
概括
研究人员使用干细胞开发了三级淋巴体器官的3D模型. 该模型模仿免疫反应,可用于疫苗查和研究自身免疫性疾病.
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
- 生物材料工程 生物材料工程
背景情况:
- 三级淋巴体器官 (TLOs) 在慢性炎症期间对局部适应性免疫至关重要.
- 在实验室中重建TLO复杂性是很困难的,因为在建立生理学上相关的树皮-免疫相互作用方面存在挑战.
研究的目的:
- 使用人类脂肪衍生干细胞 (ADSCs) 设计3D淋巴组织模型,以模仿TLOs.
- 调查干细胞衍生纤维细胞网状细胞 (FRC) 类群体的功能多样化及其在免疫微环境中的作用.
主要方法:
- 在使用TNF-α,LT-α和IL-4的原基质中,ADSC被分为FRC样群体 (FRCP1和FRCP2) .
- 该模型与外周血液单核细胞 (PBMC) 和SARS-CoV-2 S1-primed成熟树突细胞共同培养.
- 分析了转录特征,表面标记,矩阵重塑和免疫反应 (B细胞激活,细胞因子概况).
主要成果:
- 产生了两个不同的FRC类子集 (FRCP1和FRCP2),表现出淋巴结 stromal 细胞的特征.
- 该模型支持抗原特异性B细胞激活和两极化免疫反应 (Th1或Th2).
- FRCP1促进了B细胞的支持和IgM的分泌,而FRCP2增强了树突细胞的激活和Th1类型的化学激素的表达.
结论:
- 3D淋巴组织模型成功地总结了TLO的关键方面,证明了干细胞衍生体细胞的功能多样化.
- 这一平台使得能够研究体-免疫交叉声,抗体生成和免疫微环境.
- 可定制的系统对于个性化疫苗查,自身免疫性疾病建模和治疗开发非常有价值.
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