在乳腺癌新辅助疗法后的HER2和激素受体转化
Jing Wang1,2, Xin Long3,4, Mingxi Tang1
1Department of Pathology, Yaan People's Hospital, Yaan, Sichuan, China.
Frontiers in oncology
|June 24, 2025
概括
雌激素受体 (ER),孕激素受体 (PR) 和人体表皮生长因子受体2 (HER2) 的状态在新辅助疗法 (NAT) 后可能发生变化. 重新检测残留乳腺癌病变对于根据更新的受体表达来调整治疗至关重要.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 病理学 病理学 病理学
背景情况:
- 雌激素受体 (ER),孕激素受体 (PR) 和人类表皮生长因子受体2 (HER2) 在残留乳腺癌病变中的表达可能与初级瘤在新辅助疗法 (NAT) 后的表达不同.
- 激素受体状态显著影响乳腺癌管理决策.
研究的目的:
- 评估ER,PR和HER2状态在NAT之后乳腺癌患者的转化率.
- 研究受体转化和临床病理学变量之间的关系.
主要方法:
- 这项研究包括了589名患有侵袭性乳腺癌的患者,这些患者接受了NAT.
- 在初级和残留瘤中评估了ER,PR和HER2状态.
- 临床病理学变量与受体转化相关分析.
主要成果:
- 病理完整反应 (pCR) 率因亚型而异:HER2阳性为57.0%,Luminal为13.1%,三阴性乳腺癌 (TNBC) 为33.3%.
- 在ER (7.8%) 和PR (16.0%) 状态中观察到转换,主要从正向负.
- 在5.1% (HER2-阴性/阳性) 和18.6% (HER2-零/低/阳性) 的病例中发生了HER2状态转换,通常在HER2-零和HER2-低类别之间.
结论:
- 在乳腺癌患者中,ER,PR和HER2状态可以在NAT之后转换.
- 通过免疫组织化学重新检测残留病变对于准确确定受体状态至关重要.
- 根据后NAT受体表达来调整随后的治疗对于最佳的患者管理至关重要.
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