调控性B细胞标记物的共同表达,转化生长因子β和互白素-10作为扩散大B细胞淋巴瘤的预后因素
Tatsuzo Mishina1, Hiroaki Miyoshi2, Mai Takeuchi2
1Department of Pathology, School of Medicine, Kurume University, Kurume, Japan; Division of Hematology-Oncology, Chiba Cancer Center, Chiba, Japan.
Pathology, research and practice
|January 23, 2024
概括
调控性B细胞 (Bregs) 抑制抗瘤免疫力. 这项研究确定了表达TGF-β和IL-10的"Breg型"扩散性大B细胞淋巴瘤 (DLBCL),与患者的生存率差相关.
科学领域:
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
- 血液学 血液学 血液学
背景情况:
- 已知调控性B细胞 (Bregs) 通过TGF-β和IL-10等细胞因子抑制抗瘤免疫力.
- 布雷格类特征在扩散性大B细胞淋巴瘤 (DLBCL) 中的作用,一种流行的B细胞恶性瘤,仍然不清楚.
研究的目的:
- 研究DLBCL瘤细胞中布雷格标记物 (TGF-β和IL-10) 的存在和影响.
- 分析具有布雷格特征的DLBCL病例的临床病理特征和生存结果.
主要方法:
- 免疫组织化学染色用于评估TGF-β和IL-10表达在123个DLBCL瘤活检样本中.
- 对临床病理学数据和生存结果进行了回顾性分析.
- 进行基因表达分析以比较布雷格型DLBCL与其他DLBCL亚型.
主要成果:
- 15例DLBCL病例 (12.2%) 被确定为"布雷格型"DLBCL,对TGF-β和IL-10都呈阳性.
- 布雷格型DLBCL主要与活性B细胞类亚型相关.
- 与其他DLBCL病例相比,Breg型DLBCL的无进展存活率和整体存活率 (OS) 显著降低.
- 多变量分析证实了布雷格型DLBCL是不良生存系统的重要独立预测因子.
- 基因表达分析揭示了Breg型DLBCL中的毛囊树突细胞相关基因的下调.
结论:
- 在DLBCL瘤细胞中TGF-β和IL-10的共同表达定义了具有不良预后的"Breg型"DLBCL.
- 布雷格型DLBCL的特征是特定的基因表达模式和更差的生存结果.
- 对基因组异常的进一步研究可能会阐明布雷格型DLBCL的独特生物学.
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