多层次B细胞子集在胸腺瘤和胸腺瘤相关的严重肌痛症中的分布
Peng Zhang1, Yuxin Liu2, Si Chen2
1Department of Cardiovascular Thoracic Surgery, Tianjin Medical University General Hospital, Anshan Road No. 154, Heping District, Tianjin, 300052, China. zhangpengtjgh@126.com.
Scientific reports
|February 1, 2024
概括
周围血液和瘤微环境中的B细胞子集有助于确定瘤相关的MG (TMG) 中的肌痛性骨髓炎 (MG) 严重程度. 特定的B细胞标志物表明TMG患者的疾病严重程度和进展.
科学领域:
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
- 神经学 神经学
背景情况:
- 骨髓灰质炎 (MG) 是一种自身免疫性疾病,影响神经肌肉结节.
- 胸腺瘤是MG的一个常见原因,特别是胸腺瘤相关的MG (TMG).
- B细胞子集在MG等自身免疫性疾病的发病过程中起着至关重要的作用.
研究的目的:
- 评估周围血液 (PB) 和瘤微环境 (TME) 中的B细胞子集,以确定TMG患者的MG严重程度.
- 研究B细胞的分布,包括成熟的B细胞 (Bm1-Bm5) 和记忆B细胞 (非切换和切换),与TMG相关.
- 确定潜在的B细胞标记物,用于预测TMG的MG严重程度和疾病进展.
主要方法:
- 在PB和TME中分析了79名胸腺瘤或TMG患者的B细胞子集 (Bm1-Bm5,CD19+,CD20+,非切换记忆B细胞[NSMBCs],切换记忆B细胞[SMBCs]).
- 对B细胞分布和比率的定量评估 (例如CD19/CD20,Bm指数,SMBC/CD19+,NSMBC/CD19+).
- 胸腺瘤和TMG组之间的B细胞概况的比较,包括TMG低和TMG高的子组.
主要成果:
- B型胸腺瘤,特别是B2和B3亚型,更频繁地与MG和疾病恶化有关.
- 在PB中增加的CD19+B细胞与MG严重程度相关,而在TMG患者中CD19/CD20比率发生了变化.
- 发现NSMBCs在TMG胸腺瘤内的三级淋巴体结构中积累,与仅在胸腺瘤中的扩散分布形成鲜明对比.
结论:
- 在PB中的CD19+B细胞和Bm1-Bm5子集可以作为TMG中MG严重性的指标.
- CD19/CD20比率是评估TMG疾病严重程度的潜在标志物.
- 在PB和TME中NSMBC和SMBC的差异分布协同有助于确定TMG中的MG严重程度.
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