兰格汉斯细胞的功能在松尼尔甲酸盐加重的过敏接触性皮肤炎中
Jia Wang1, Meixiang Wang2, Shuying Yi2
1Department of Rheumatology and Autoimmunology, Shandong Provincial Key Laboratory for Rheumatic Disease and Translational Medicine, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital & Co-research Group for Institute of Infection and Immunity, Shandong First Medical University and Institute of Orthopedic Biomedical and Device Innovation, University of Shanghai for Science and Technology, Jinan, Shandong 250014, China; Institute of Orthopedic Biomedical and Device Innovation, School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China; Department of Orthopedic Oncology, Shanghai Changzheng Hospital, Shanghai 200003, China.
迪松尼尔甲酸盐 (DINP) 暴露会通过激活免疫细胞和增加炎症性细胞因子,使小鼠的过敏性接触性皮肤炎 (ACD) 恶化. 令人惊的是,去除朗格汉斯细胞 (LCs) 恶化了这些效应,表明LCs对DINP诱导的ACD并不重要.
科学领域:
- 免疫学 免疫学 免疫学
- 皮肤病学 皮肤病学
- 毒理学 毒理学 毒理学
背景情况:
- 迪松尼尔甲酸 (DINP) 是一种常见的增塑剂,与过敏性接触性皮肤炎 (ACD) 等过敏性疾病有关.
- 朗格汉斯细胞 (LCs) 参与了ACD敏感化,但DINP对小鼠的LCs和ACD的特定影响尚未完全理解.
研究的目的:
- 为了研究皮肤暴露于DINP对C57BL/6小鼠ACD发育的影响.
- 阐明兰格汉斯细胞 (LC) 在DINP诱导的ACD和相关免疫反应中的作用.
主要方法:
- 小鼠被暴露在DINP中,以评估ACD发育,耳朵厚度,巨细胞降粒和细胞因子表达 (IL-4,IL-5,IL-13,IL-17,IL-6,IL-1β,TGF-β1,TSLP).
- 通过检查抗原吸收和迁移型树突细胞 (mDC) 表面分子表达 (CD86,CD80,PD-L1,PD-L2) 来评估LC功能.
- 废除了LC以确定它们在DINP诱导的ACD和Th2/Th17反应中的必要性.
主要成果:
- 在小鼠中,DINP暴露加剧了ACD,导致耳朵加厚,巨细胞脱粒,以及各种免疫性细胞因子的水平升高.
- 通过增加表面分子表达,DINP激活LC,增强抗原吸收,并刺激mDC.
- 切LC加剧了DINP对ACD和Th2/Th17反应的影响,这表明切LC对于这些结果并不重要.
结论:
- DINP通过激活LCs,增强mDC功能,促进巨细胞脱粒,并刺激Th2/Th17免疫反应来加剧ACD.
- 这些发现表明,抑制Th2/Th17细胞反应可能是DINP诱导的ACD的潜在治疗策略.
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