来自克隆扩张的癌症相关血细胞的重组抗体
Wonkyung Kim1,2, Ji-Hye Oh3, Chae Won Park1,2
1Department of Medical Science, Brain Korea 21 Project, Asan Medical Institute of Convergence Science and Technology, University of Ulsan College of Medicine, Seoul, Republic of Korea.
Cancer immunology, immunotherapy : CII
|May 13, 2025
概括
研究人员探索了瘤中的血细胞,发现与更好的乳腺癌预后相关的特定抗体. 这项工作突出显示了瘤透等离子体细胞中的潜在癌症相关抗体.
科学领域:
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
- 分子生物学分子生物学
背景情况:
- 血细胞及其分泌的抗体在瘤微环境中的作用尚未完全理解.
- 关于癌症组织中的血细胞发育和抗体特征的研究有限.
研究的目的:
- 研究瘤微环境中的血细胞及其分泌抗体的特性.
- 描述由内血细胞合成的克隆扩张和免疫球蛋白 (IGH) 同型.
- 评估瘤透性血细胞及其抗体在乳腺癌预后中的临床相关性.
主要方法:
- 单细胞RNA测序和单细胞B细胞受体测序被用来分析癌症组织中的血细胞.
- 从已识别的克隆性血细胞合成了复合抗体.
- 免疫组织化学被用来检查癌细胞上的抗体表达.
- 分析了来自1078名乳腺癌患者的大量RNA测序数据.
主要成果:
- 血细胞约占瘤免疫细胞群体的5%,与B细胞相比,克隆扩张的患病率更高.
- 发现的最常见的免疫球蛋白同型是IGHG1和IGKC.
- 两种合成的抗体显示了癌细胞上的膜染色,在淋巴结转移中表达减少.
- 表达IGHG1的瘤透性血细胞与乳腺癌患者的良好预后有关.
结论:
- 内血细胞,特别是表达IGHG1的细胞,与改善乳腺癌结局有关.
- 这项研究确定了来自内血细胞的潜在癌症相关抗体.
- 在具有IGHG1-表达性血细胞的瘤中观察到B细胞受体多样性增加,免疫原突变和内异质性.
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