在多种原发性肺癌的新辅助化疗免疫治疗反应中,多种AT2细胞周围的AT2细胞阻碍了三级淋巴体结构的功能
Wenxiang Wang1,2,3, Sida Cheng1, Hongchengcheng Chen1
1Department of Thoracic Surgery, Peking University People's Hospital, Beijing, Beijing, China.
Journal for immunotherapy of cancer
|October 8, 2025
概括
在多重原发性肺癌 (MPLC) 中,非响应性病变中的II型膜上皮细胞 (AT2) 通过MIF-SIAE通路抑制三级淋巴体结构 (TLS) 内的B细胞,阻碍免疫治疗的有效性.
科学领域:
- 在瘤学瘤学.
- 免疫学 免疫学 免疫学
- 分子生物学分子生物学
背景情况:
- 在多重原发性肺癌 (MPLC) 病变中免疫疗法反应不一致,这构成了治疗挑战.
- 了解各种反应背后的机制对于改善患者的治疗结果至关重要.
研究的目的:
- 在MPLC中调查具有差异性免疫疗法反应的病变的多组景观.
- 阐明导致治疗耐药性的细胞和分子相互作用.
主要方法:
- 来自MPLC患者的病变的综合多组学分析.
- 外部单细胞数据和多重免疫组织化学验证.
- 细胞邻居和空间同居化分析.
主要成果:
- 在所有结节中存在的三级淋巴体结构 (TLS),在不响应的结节中可能受损.
- 第二种类型的膜上皮细胞 (AT2) 阳性邻居与不响应相关.
- AT2细胞通过巨细胞迁移抑制因子 (MIF) -酸乙雌激酶 (SIAE) 轴在TLS内的B细胞上调节免疫抑制标记物.
结论:
- 通过MPLC中的MIF-SIAE信号轴,AT2细胞通过抑制TLS内的B细胞来施加免疫抑制.
- 这种机制为开发针对MPLC患者量身定制的免疫疗法提供了新的见解.
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