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人类表皮模型表明TLR2和TLR3在牛皮炎炎中扮演中介作用

Hanna Glasebach¹, Lukas Denzinger¹, Steffen Rupp¹

¹Department Cell and Tissue Technologies, Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB, Stuttgart, Germany.

Frontiers in medicine

|September 25, 2025

概括

皮肤细胞中的托尔类受体 (TLR) 激活在牛皮病中起着关键作用. 在角质细胞中激活TLR2和TLR3会触发牛皮炎炎症标志物,突出显示它们在疾病中的重要性.

科学领域:

皮肤病学皮肤病学
免疫学免疫学免疫学
细胞生物学细胞生物学

背景情况:

牛皮是一种复杂的系统性自身炎症性疾病,涉及状细胞和免疫细胞信号传递.
皮肤表现通常是由激活托尔类受体 (TLR) 信号通路的因素触发的,特别是在树突细胞 (TLR7/8/9).

研究的目的:

调查类受体2 (TLR2) 和类受体3 (TLR3) 激活在皮质细胞内在驱动牛皮的特征中的特定作用.
了解皮肤细胞中的TLR2和TLR3信号如何导致牛皮样炎症.

主要方法:

开发3D人体表皮模型,利用野生类型的角质细胞和缺乏TLR2或TLR3的转基因角质细胞.
用特定的TLR激动剂对这些模型进行治疗,以模仿疾病触发因素.
使用免疫组织化学,西斑和多重测试进行分析,以量化标记物表达.

主要成果:

野生类型角质细胞中的TLR激活显著上调了与牛皮相关的标记物,包括S100A7,p-STAT3,CXCL-1,IL-8,IL-1α,S100A9和IL-23.
这种上调在TLR2淘汰和TLR3淘汰角质细胞模型中显著缺失.
无论是TLR2和TLR3的激活都独立地促进了皮病特征的细胞因子和免疫调节剂的释放.

结论:

角质细胞中的TLR2和TLR3激活是导致牛皮样炎症发展的关键个体贡献者.
准角质细胞中的TLR2和TLR3通路可能为治疗牛皮提供新的治疗策略.

关键词:

收费类受体的收费类受体细胞因子细胞因子在体外表皮层模型.角质细胞 (keratinocytes) 是一种细胞.牛皮是一种牛皮.

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