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在皮肤莱什曼病的发病过程中,局部免疫反应与系统免疫反应相比
Augusto M Carvalho1,2,3, Rúbia S Costa1,2, Alexsandro Lago2
1Gonçalo Moniz Institute (IGM), Fiocruz, Salvador 40296-710, BA, Brazil.
Pathogens (Basel, Switzerland)
|March 27, 2024
概括
周围血液单核细胞 (PBMC) 中的细胞因子配置不完全反映皮肤雷什曼病 (CL) 病变部位的免疫反应. 这项研究强调了CL患者的独特免疫细胞活动,影响了疾病病理学.
科学领域:
- 免疫学 免疫学 免疫学
- 传染性疾病 传染性疾病
背景情况:
- 皮肤莱什曼病 (CL) 的发病包括免疫反应,主要由血液细胞介导.
- 了解在CL中全身和局部免疫反应之间的相关性对于有效治疗至关重要.
研究的目的:
- 研究CL患者外周血液单核细胞 (PBMC) 产生的细胞因子是否反映了病变部位的免疫环境.
- 确定关键细胞因子及其与疾病严重程度的相关性.
主要方法:
- 从22名CL患者的外周血液单核细胞 (PBMC) 和病变活检被用可溶性莱什曼尼亚抗原 (SLA) 刺激.
- 细胞因子水平 (TNF,IL-1β,IL-6,IL-17,GzmB,IFN-γ,IL-10) 用ELISA进行测量.
- 分析了细胞因子水平,病变大小和患者数据之间的相关性.
主要成果:
- 与PBMC相比,TNF,IL-1β,IL-6,IL-17和大酶B (GzmB) 的细胞因子水平在病变活检中显著更高.
- 干扰素 (IFN-γ) 在PBMC中比在活检中更高.
- IL-1β,IL-17和GzmB与病变大小有很强的相关性,这表明它们在CL病理学中的作用.
结论:
- 在CL病变部位的免疫反应不同于在周围血液中观察到的免疫反应.
- 除了IL-1β和GzmB之外,IL-17在LC的病理学中发挥着重要作用,该病理学是由Leishmania (Viannia) braziliensis引起的.
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