HR+乳腺癌的临床和病理特征与HER2低和HER2{0}表达:探索内分泌治疗敏感性
Xin Jin1, Yun-Fei Ma2, Tong-Jun Sun2
1Department of Surgical Oncology, The First Affiliated Hospital of Bengbu Medical University, Bengbu, China.
Translational cancer research
|January 16, 2025
概括
患有HER2低表达性乳腺癌的患者比患有HER2{0}表达性乳腺癌的患者有更好的生存结果. 这项研究突出了不同的临床特征,并支持激素受体阳性乳腺癌的个性化治疗策略.
科学领域:
- 在瘤学瘤学.
- 病理学 病理学 病理学
- 遗传学 遗传学 是一个
背景情况:
- 人类表皮生长因子受体2 (HER2) 低和HER2 ((0) 表达在激素受体阳性 (HR +) 乳腺癌中的临床意义尚未完全理解.
- 这种不确定性影响了大量患者群体的治疗决策和预后评估.
研究的目的:
- 调查HR+乳腺癌患者的临床和病理特征,这些患者的HER2表达低,HER2表达低.
- 评估这些患者群体的预后影响和内分泌治疗 (ET) 敏感性.
主要方法:
- 对390名HR+,HER2阴性乳腺癌患者的回顾性分析,这些患者于2014年12月至2017年12月期间接受治疗.
- 使用ASCO/CAP 2018指南确定HER2状态,将瘤分类为HER2 (IHC 0) 或HER2低 (IHC 1+或2+与负FISH).
- 分析了无病生存率 (DFS) 和总生存率 (OS),用于预后值的ROC曲线分析.
主要成果:
- 32.6%的患者有HER2的表达,而67.4%的患者有HER2的低表达.
- 与HER2-低队列 (P<0.05) 相比,HER2(0) 队列表现出明显较差的DFS和OS.
- 患有HER2表达低的患者在pN0-2阶段的预后更好,但在pN3.3阶段的预后更差. 较高的IHC分数 (>4) 与明显更好的OS和DFS相关.
结论:
- 在HR+乳腺癌中HER2的低表达与与HER2{0}表达相比具有明显的临床特征和更有利的预后有关.
- 这些发现提供了现实世界的证据,支持基于HER2表达水平的乳腺癌患者个性化治疗方法.
- 进一步的研究可能会完善对HER2低和HER2{0) 乳腺癌的治疗策略.
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