FGFR4和HER2的共同表达与HR+乳腺癌中的炎症性瘤微环境有关
Yike Gao1, Longyun Chen1, Fei Yao2
1Department of Pathology, Molecular Pathology Research Centre, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China.
Breast cancer (Tokyo, Japan)
|February 11, 2026
概括
在激素受体阳性乳腺癌中高FGFR4和HER2联合表达与增加的免疫细胞透相关,并表明免疫治疗的潜力. 需要进一步的研究来探索免疫微环境调节策略.
科学领域:
- 在瘤学瘤学.
- 免疫学 免疫学 免疫学
- 基因组学就是基因组学.
背景情况:
- 不调节的纤维细胞生长因子受体4 (FGFR4) 信号与侵袭性乳腺癌亚型有关,包括HER2丰富型和内分泌抵抗型.
- 在各种乳腺癌亚型中FGFR4的确切作用仍然不完全理解.
- 研究高FGFR4的瘤对于开发有针对性的治疗策略至关重要.
研究的目的:
- 为了阐明高FGFR4的乳腺瘤的分子特征.
- 探索FGFR4表达,HER2状态和激素受体状态之间的关联.
- 确定潜在的治疗影响,特别是在免疫治疗方面.
主要方法:
- 使用AmoyDx主面板对94名乳腺癌患者 (53 HR+, 41 HR-) 的临床病理和基因表达数据进行分析.
- 使用癌症基因组图谱 (TCGA) 和单细胞RNA测序 (scRNA-seq) 数据集验证发现.
- 基于HER2和激素受体 (HR) 状态以及FGFR4表达水平的患者分层.
主要成果:
- 高FGFR4的瘤显示丰富的免疫激活通路,特别是在HR+/HER2-低/阳性亚组,没有显著的基因组变化.
- 在HR+瘤中FGFR4和HER2的同时表达与增加的免疫细胞透 (T细胞,NK细胞,M1巨细胞) 和上调的免疫检查点相关.
- TCGA分析显示,高FGFR4表达与HR+/HER2-阳性患者的无病存活率 (DFS) 的改善有关,但HR+/HER2-零患者的DFS降低.
结论:
- 激素受体阳性乳腺癌中FGFR4和HER2的共同表达与一种促炎性瘤微环境有关.
- 这表明免疫疗法在治疗这些特定的乳腺癌亚型方面可能发挥作用.
- 进一步研究向瘤免疫微环境的治疗策略是有必要的.
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