高度血清管卵巢癌中的三级淋巴体结构:解剖部位问题
Sofia Westbom-Fremer1, Lena Tran2, Anna Ebbesson2
1Division of Oncology, Department of Clinical Sciences Lund, and Lund University Cancer Center, Lund University, Lund, Sweden. sofia.westbom_fremer@med.lu.se.
Cancer immunology, immunotherapy : CII
|January 3, 2025
概括
三级淋巴体结构 (TLS) 在高度血清管卵巢癌 (HGSC) 转移中很常见,但不能独立预测存活率. 主要瘤和转移之间存在TLS存在和免疫细胞组成的差异.
科学领域:
- 在瘤学瘤学.
- 免疫学 免疫学 免疫学
- 病理学 病理学 病理学
背景情况:
- 三级淋巴体结构 (TLS) 与各种固体瘤的良好预后有关.
- 高度血清管卵巢癌 (HGSC) 中TLS的预后意义在很大程度上仍未被描述.
- 在HGSC中理解TLS对于开发有效的免疫疗法至关重要.
研究的目的:
- 为了调查成熟的TLS (mTLS),不成熟的TLS (iTLS) 和淋巴结合物 (LA) 在HGSC的初级附带瘤 (PTs) 和腹膜转移 (pMets) 中的存在和预后影响.
- 在HGSC中分析TLS内的免疫细胞组成.
- 探索初级HGSC和转移性遗址之间的TLS差异.
主要方法:
- 从130个III-IV阶段高血压病例中对整个H&E幻灯片进行了组织病理学分析,以确定mTLS和LA.
- 在组织微阵列 (TMA) 上使用免疫组织化学 (IHC) 评估内免疫细胞透.
- 多重体IHC和免疫光与数字图像分析 (QuPath) 在选定的情况下,以确认TLS状态和映射淋巴细胞亚型.
主要成果:
- 与PT相比,mTLS在pMets中更为普遍,但与总体或无进展生存率没有独立相关.
- 在pMets中,mTLS的存在与CD8+ T细胞,FOXP3+调节性T细胞和PD-1+淋巴细胞的透增加有关.
- 虽然mTLS的整体组成相似,但与pMets相比,PT表现出更多的免疫丰富的mTLS外围区域.
结论:
- 在初级HGSC和同步腹膜转移之间存在TLS存在和免疫细胞分布的差异.
- 在HGSC中mTLS的预后影响可能是特定地点的,需要进一步调查.
- 这些发现强调了在研究HGSC的免疫微环境时考虑瘤部位的重要性.
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