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表达RORc的免疫细胞负面调节三级淋巴细胞结构的形成,并支持它们的前瘤原生功能

Einat Cinnamon¹, Ilan Stein², Elvira Zino¹

¹The Concern Foundation Laboratories at The Lautenberg Center for Immunology and Cancer Research, Israel-Canada Medical Research Institute, Faculty of Medicine, The Hebrew University, Jerusalem, Israel.

Journal of hepatology

|December 22, 2024

概括

表达RORc的细胞通过负面调节三级淋巴体结构 (TLS) 来促进肝癌. 移除这些细胞可以增强抗瘤免疫力,并降低瘤负载,这表明RORc是治疗点.

科学领域:

免疫学免疫学免疫学
在瘤学瘤学.
肝病学肝病学是一种肝病学.

背景情况:

表达RORc的免疫细胞在炎症,自身免疫和癌症中至关重要.
肝癌中的三级淋巴体结构 (TLS) 可能是亲瘤的,但它们的发展尚不清楚.
这项研究研究了RORc表达细胞在炎症相关肝癌中TLS发展中的作用.

研究的目的:

探索RORc表达细胞在肝癌中TLS发展中的作用.
确定RORc如何影响TLS的亲瘤或抗瘤功能.
确定在肝癌中操纵TLS的潜在治疗点.

主要方法:

交叉IKKβ(EE) ^Hep小鼠与RORc淘汰小鼠,以研究RORc对肝炎,TLS和癌症的影响.
通过转录,蛋白质和免疫组织化学方法分析了TLS表型.
利用CD4,CD8和B细胞枯竭来评估它们对肝脏TLS和瘤形成的贡献.

主要成果:

在人类和小鼠肝内胆管癌的TLS中发现了RORc表达细胞.
缺少RORc表达细胞导致TLS形成增加和获得抗瘤性质,减少瘤负载.
CD4细胞对于肝脏TLS形成至关重要;B细胞对于TLS形成至关重要,特别是当RORc表达细胞缺席时.
抗瘤TLS显示,耗尽的CD8细胞,生殖中心B细胞和血细胞的丰富,B细胞可能通过抗体限制瘤的发展.

结论:

表达RORc的细胞负面调节B细胞的反应,并促进肝脏TLS的前瘤功能.
在癌症中,RORc表达细胞是肝脏免疫微环境的关键调节者.
向RORc可能提供一种增强抗瘤免疫力和改善肝癌治疗结果的策略.

关键词:

B 细胞 B 细胞 B 细胞这些CD4细胞是CD4细胞.这些CD8细胞是CD8细胞.赛托夫 (CyTOF) 是一种一个 RORccc.三级淋巴体结构的第三级淋巴体结构.细胞枯竭细胞枯竭胆性癌 (Cholangiocarcinoma) 是一种癌症.肝癌肝癌是一种肝癌.一个单细胞RNA测序.

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