一个具有免疫能力的人类肠道微生理系统能够通过Faecalibacterium prausnitzii进行炎症调节
Jianbo Zhang1,2,3, Yu-Ja Huang4, Martin Trapecar4
1Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA. j.zhang6@uva.nl.
NPJ biofilms and microbiomes
|March 30, 2024
概括
一个新的肠道微生理系统 (GuMI) 能够长期共同培养人类肠道微生物,上皮和免疫细胞. 这个平台揭示了特定的免疫细胞如何调节对有益的肠道细菌 (如Faecalibacterium prausnitzii) 的炎症反应.
科学领域:
- * 胃肠道学和免疫学
- * 微生物组研究
- * 微生理系统 微生理系统
背景情况:
- * 了解肠道微生物-上皮-免疫细胞交叉对肠道健康至关重要.
- * 现有的系统缺乏对氧不耐受微生物和人类天生的免疫细胞的长期共同培养能力.
- * 这种限制阻碍了对微生物与免疫相互作用的受控研究.
研究的目的:
- *建立一种新的肠表皮-微生物-免疫 (GuMI) 微生理系统.
- * 研究抗原呈现细胞 (APC) 和T细胞在调节对共生细菌的免疫反应中的作用.
- * 为了分析对Faecalibacterium prausnitzii*的反应中基因转录和细胞因子分泌.
主要方法:
- *开发GuMI系统,长期共同培养结肠表皮,Faecalibacterium prausnitzii,树突细胞,巨细胞和CD4+原始T细胞.
- *多重细胞因子测试以测量分泌的因素.
- * 定量PCR用于评估炎症标志物的基因转录水平.
主要成果:
- *与没有APC的系统相比,APC显著增加了细胞因子和化学因子的分泌.
- * *F. prausnitzii* 在不改变细胞因子分泌的结肠上皮质上调节了促炎基因 (TLR1,IFNA1).
- *T细胞减少了特定基因转录 (TLR1,IFNA1,IDO1),同时增加了IL8分泌以应对F.prausnitzii*.
结论:
- * GuMI系统有效地支持不同肠道组件的长期共同培养.
- * 个体免疫细胞类型不同调节对F. prausnitzii*的免疫反应.
- * GuMI平台对于研究健康和疾病中的微生物-表皮-免疫相互作用是有价值的.
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