胸腺瘤细胞中HMGB1的下调影响T细胞分化
Jian Li1, Zeyang Zhang1, Yuan Chen1
1Tianjin Medical University General Hospital, China.
Central-European journal of immunology
|October 30, 2023
概括
高流动性组盒1 (HMGB1) 涉及到肌痛严重症相关的胸腺瘤中的免疫失调. HMGB1 影响 Th17/Treg 细胞分化,有助于胸腺瘤的自身免疫病原发生.
科学领域:
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
- 自免疫性疾病 自免疫性疾病
背景情况:
- 胸腺瘤是最常见的前端中瘤,与肌痛性骨髓灰质炎 (MG) 密切相关.
- 以前的研究表明,在MG相关的胸腺瘤中,Th17和Treg细胞水平发生变化.
- 高流动性组盒子1 (HMGB1) 的作用,一个炎症调解者,在胸腺瘤的发病过程中仍然不清楚.
研究的目的:
- 调查HMGB1在与MG-胸腺瘤相关的免疫异常中的作用.
- 在患有MG-胸腺瘤的患者中分析免疫指数和HMGB1表达,与单独的胸腺瘤相比.
- 探索HMGB1对Th17和Treg细胞分化在胸腺瘤模型中的影响.
主要方法:
- 分析外周血液免疫标记物 (IgG,C3,C4,CRP,球蛋白) 在MG-胸腺瘤和胸腺瘤患者.
- 在胸腺瘤组织中评估HMGB1表达.
- 在体外研究涉及HMGB1在胸腺瘤细胞系 (Thy0517) 中的淘汰和与外周血液单核细胞 (PBMCs) 共同培养.
主要成果:
- 在MG-胸腺瘤和单独胸腺瘤组之间观察到周围血液免疫标记的显著差异.
- 与单独的胸腺瘤相比,在MG相关的胸腺瘤组织中,HMGB1表达升高.
- 共同培养实验表明,HMGB1调制影响了PBMC中的Th17和Treg细胞百分比.
结论:
- HMGB1在胸腺瘤内的Th17/Treg细胞的异常分化中发挥作用.
- HMGB1有助于观察到的肌痛性骨髓灰质炎相关胸腺瘤的免疫失调.
- 向HMGB1可能为MG相关的胸腺瘤提供治疗潜力.
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