在硬皮硬化症上皮表皮皮细胞中调节卷膜蛋白和信号通路
Jia-Qi Chen1, Min Zheng1, Wei Li1
1Department of Dermatology, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China.
Postepy dermatologii i alergologii
|January 29, 2025
概括
系统性硬化与表皮分化的延迟有关. 发炎性细胞因子和Rho信号通路的影响下,发炎性细胞因子的表达在硬化皮肤和培养细胞中发生变化.
科学领域:
- 皮肤病学 皮肤病学
- 细胞生物学 细胞生物学
- 免疫学 免疫学 免疫学
背景情况:
- 系统性硬化是一种复杂的纤维化和血管病变性疾病.
- 外皮分化对于皮肤屏障功能至关重要.
- 卷曲素作为表皮角质细胞末端分化的早期标志物.
研究的目的:
- 为了研究involutrin在全身性硬化症中的作用.
- 为了评估硬化皮肤病变和培养的角质细胞中的卷膜蛋白表达.
- 探索炎症性细胞因子和Rho信号对卷膜蛋白表达的影响.
主要方法:
- 免疫光 (IF) 试验用于 in situ 内蛋白局部化.
- 对定量性内蛋白表达的西部斑点分析.
- 用各种细胞因子和抑制剂在体外培养正常和硬质皮质皮质皮质细胞细胞.
主要成果:
- 在硬化皮肤病变的颗粒层和上层层脊柱体中检测到involucrin.
- 与正常细胞相比,培养的多发性硬质皮质皮质细胞表现出较低的卷膜蛋白表达.
- 介质蛋白 (ILs),TNF-α,TGF-β1,ET-1,IFN-γ,VEGF和PDGF-BB在正常和硬质皮肤皮质细胞中差异调节了卷膜蛋白表达.
- IFN-γ和IL-13显著降低了卷膜素水平,特别是在Y-27632干预的情况下.
结论:
- 延迟的表皮分化可能会导致系统性硬化症的发病.
- 炎症性细胞因子 (IL-6,IL-10,TGF-β1,ET-1,IFN-γ,VEGF,PDGF-BB) 和Rho信号通路都与变异性表皮分化有关.
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