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人工三级淋巴体结构:探索中细胞流体细胞作为免疫形成的平台
Ekaterina Zubkova1, Alexander Kalinin1,2, Irina Beloglazova1
1National Medical Research Center of Cardiology Named after Academician E.I. Chazov, Moscow 121552, Russia.
International journal of molecular sciences
|January 8, 2025
概括
人工三级淋巴体结构 (TLSs) 可以使用介酶体 stromal 细胞 (MSCs) 来构建,以支持癌症免疫治疗. 脂肪酸衍生的MSC显示出形成TLS类结构的潜力,在体内增强T细胞透.
科学领域:
- 免疫学 免疫学 免疫学
- 再生医学是一种再生医学.
- 生物技术是生物技术.
背景情况:
- 人工三级淋巴体结构 (TLSs) 对免疫反应至关重要,对癌症免疫疗法具有前景.
- 介酶体 stromal 细胞 (MSCs) 具有免疫调节特性,使它们适合构建人造免疫.
- 脂肪酸衍生的MSC被探索为它们支持TLS形成的潜力.
研究的目的:
- 研究脂肪衍生的MSCs开发支持TLS形成的表型的能力.
- 评估MSCs组织淋巴细胞和促进人造免疫的创造的能力.
- 为了评估MSC-淋巴细胞有机体的体内行为.
主要方法:
- 单细胞RNA测序以识别MSC亚群和标记物表达.
- 用TNF-α和LTα2β1刺激MSC以评估FRC标志物诱导.
- 多细胞细胞与淋巴细胞的3D球形共培养.
- 在体内植入MSC淋巴细胞有机体到脂肪组织中.
主要成果:
- 一个独特的MSC亚群表达了关键的纤维细胞网状细胞 (FRC) 相关标记物 (IL-7,PDPN,IL-15).
- 通过TNF-α刺激增强了FRC标志物的表达 (IL-7,PDPN,ICAM1).
- 在共同培养中,MSC上调了CCL21的调节,并在体内支持T细胞透和部分血管化,但缺乏有组织的B细胞毛囊和FDC标志物.
结论:
- 脂肪酸衍生的MSC具有采用FRC类型的表型的内在能力,支持T细胞和高内皮静脉 (HEV) 组织.
- 需要进一步优化,可能包括基因修饰,以实现卵泡树突细胞 (FDC) 现型和完全复制TLS复杂性.
- 在癌症免疫疗法中,MSCs显示出作为工程免疫的 stromal 组件的前景.
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