在光线乳腺癌中对新辅助内分泌疗法的反应中HER2的作用
Celia Del Monte1, Covadonga Martí2, Elena Rodríguez2
1Department of Obstetrics and Gynecology, Faculty of Medicine, Universidad Autónoma de Madrid, 28029 Madrid, Spain.
Current oncology (Toronto, Ont.)
|February 26, 2026
概括
在光线乳腺癌中,新辅助内分泌疗法 (NET) 反应不受HER2-低表达的影响. 在NET后,基67水平较低的患者的无进展生存时间更长.
科学领域:
- 在瘤学瘤学.
- 乳腺癌研究研究 乳腺癌研究
- 分子诊断学 分子诊断
背景情况:
- 乳腺癌中低HER2亚型是一个兴趣的新兴领域.
- 目前,HER2-低瘤的治疗方法是HER2-阴性.
- 新辅助性内分泌疗法 (NET) 用于治疗经更年期妇女的瘤衰退,这些妇女患有HER2-阴性瘤.
研究的目的:
- 为了调查低HER2表达水平是否会影响光线乳腺瘤中的NET反应.
- 为了比较HER2-zero和HER2-low亚型之间的NET反应.
主要方法:
- 从2017年到2023年对175个HER2-阴性光瘤进行了回顾性分析.
- 患者接受了NET,随后进行了手术.
- 评估了瘤反应,特征,无进展生存期 (PFS) 和整体生存期 (OS).
主要成果:
- 在HER2-zero,HER2-low 1+和HER2-low 2+组之间没有观察到NET反应或瘤特征的显著差异.
- NET反应受到雌激素受体水平,组织学亚型/等级,Ki67水平和NET持续时间的影响.
- 在基67≤10%的患者中,在NET后的中间活检中,PFS的时间较长.
结论:
- 低HER2表达不会影响光线乳腺癌中新辅助内分泌治疗反应.
- 在NET后的Ki67水平是无进展生存的重要预测指标.
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