Investigations on T cell transmigration in a human skin-on-chip (SoC) model.

Investigations on T cell transmigration in a human skin-on-chip (SoC) model.
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DOI:
10.1039/d0lc01194k
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发表时间:
2021-04-20
期刊:
影响因子:
6.1
通讯作者:
Lin F
Lin F
中科院分区:
工程技术1区
文献类型:
--
作者:
Ren X;Getschman AE;Hwang S;Volkman BF;Klonisch T;Levin D;Zhao M;Santos S;Liu S;Cheng J;Lin F

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本研究建立了一个基于微流体学的三维芯片上皮肤(SoC)模型,以定量研究人T淋巴细胞在模拟皮肤炎症微环境中的跨内皮和跨上皮迁移,并测试新的候选药物。关键结果包括1)CCL20依赖的T细胞迁移被工程CCL20锁定二聚体(CCL20LD)显著抑制,支持CCL20LD用于治疗银屑病等皮肤病的潜在免疫治疗用途;2)响应CXCL12梯度模拟T细胞从皮肤流出的T细胞的跨皮迁移显著减少,提示S1P在炎症皮肤组织中T细胞滞留中的作用;以及3)在SOC模型中,T细胞迁移是由炎症细胞因子刺激的上皮细胞诱导的。总的来说,开发的SOC模型重建了一个动态的多细胞微环境,使得能够在单个细胞水平上对T细胞对生理性皮肤炎症介质和潜在药物的反应进行定量研究。我们的芯片上皮肤(SoC)模型独特地实现了在模拟炎症皮肤条件下对人T淋巴细胞跨内皮和跨上皮迁移的定量研究,并被用于测试新药候选。
A microfluidics-based three-dimensional skin-on-chip (SoC) model is developed in this study to enable quantitative studies of transendothelial and transepithelial migration of human T lymphocytes in mimicked skin inflammatory microenvironments and to test new drug candidates. The keys results include 1) CCL20-dependent T cell transmigration is significantly inhibited by an engineered CCL20 locked dimer (CCL20LD), supporting the potential immunotherapeutic use of CCL20LD for treating skin diseases such as psoriasis; 2) transepithelial migration of T cells in response to a CXCL12 gradient mimicking T cell egress from the skin is significantly reduced by a Sphingosine-1-phosphate (S1P) background, suggesting the role of S1P for T cell retention in inflamed skin tissues; and 3) T cell transmigration is induced by inflammatory cytokine stimulated epithelial cells in the SoC model. Collectively, the developed SoC model recreates a dynamic multi-cellular micro-environment that enables quantitative studies of T cell transmigration at a single cell level in response to physiological cutaneous inflammatory mediators and potential drugs. Our skin-on-chip (SoC) model uniquely enabled quantitative studies of transendothelial and transepithelial migration of human T lymphocytes under mimicked inflammatory skin conditions and was used to test new drug candidates.
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