数字农科院2.0

Synovium-On-A-Chip: Simulating the Microenvironment of the Rheumatoid Arthritis Synovium via Multicell Interactions to Target Fibroblast-Like Synoviocytes

文献类型： 外文期刊

作者： Diao, Wenya;Jiao, Yi;Deng, Tingting;Gu, Jienan;Wang, Bailiang;Zhang, Qidong;Wang, Peilong;Xu, Ning;Xiao, Cheng

作者机构：

关键词： fibroblast-like synoviocytes;microfluidics;organ-on-a-chip;rheumatoid arthritis;synovium

期刊名称： ADVANCED SCIENCE

ISSN：

年卷期： 2025 年

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收录情况： SCIE（2025版） ; ; EI（2025版）

摘要： Fibroblast-like synoviocytes (FLSs) play pivotal roles in the synovial inflammation of rheumatoid arthritis (RA) and are promising therapeutic targets. Currently, few in vitro models effectively mimic the characteristics of RA FLSs. In this study, microfluidic chips, 3D culture systems, and flow-based culture techniques are integrated to develop a vascularized and immune-activated synovium-on-a-chip (SOC) model. Using immunofluorescence staining, multiparametric flow cytometry, and ELISA, the optimal coculture ratio of RA FLSs, M1-type macrophages, and human umbilical vein endothelial cells is determined to be 1:1:1 (2 x 106 cells/mL). Analyses of inflammatory cytokine profiles from 22 blood samples, 48 synovial fluid samples, and six synovial tissues demonstrate that the SOC model consistently maintains elevated levels of interleukin (IL)-6 and IL-8 over 9 days, closely recapitulating RA synovial inflammation. Additionally, RA FLSs in the SOC model exhibit elevated levels of Cadherin-11, matrix metalloproteinase (MMP)-1, MMP-3, and Ki-67. By evaluating the therapeutic efficacy and toxicity of triptolide and celastrol, this study confirms the potential of the SOC model in predicting in vivo drug responses, thereby offering a promising tool for preclinical drug assessment in RA-related research.

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