病例报告:在HER2阳性乳腺癌中,病理性完整反应却是早期的大脑复发:基于病例的综述
Jing Feng1, Yujun Tong1, Zhen Zhang1
1Department of Breast Center, Mianyang Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Mianyang, Sichuan, China.
Frontiers in immunology
|January 21, 2026
概括
尽管成功治疗,一个HER2阳性乳腺癌患者经历了大脑转移,这是由于血脑屏障限制了抗HER2疗法. 需要新的策略来预防中枢神经系统 (CNS) 复发.
科学领域:
- 在瘤学瘤学.
- 神经学 神经学
- 药理学 药理学是指药理学的学科.
背景情况:
- 抗HER2疗法的进展改善了HER2阳性乳腺癌 (BC) 的病理完整反应 (pCR) 率.
- 血脑屏障 (BBB) 阻碍了全身疗法,允许微转移性沉积物在中枢神经系统 (CNS) 中持续存在.
- 内复发仍然是HER2阳性BC管理的一个重大挑战.
研究的目的:
- 突出目前抗HER2疗法在预防中枢神经系统复发方面的局限性.
- 要强调对于早期中枢神经系统复发的BBB-透性策略的迫切需要.
- 介绍一个案例,说明中枢神经系统转移的挑战,尽管有系统治疗.
主要方法:
- 一个60岁的妇女患有HER2阳性,荷尔蒙受体阴性乳腺癌的病例报告.
- 治疗包括新辅助化疗,特斯图祖马布,珀图祖马布和维护疗法.
- 治疗后的监测和治疗结果的分析.
主要成果:
- 患者实现了pCR和全身控制,但在治疗后发生了多焦点脑转移.
- 脑外复发不存在,表明中枢神经系统特异性复发.
- 这凸显了大分子单克隆抗体的BBB透性较差.
结论:
- 目前的抗HER2单克隆抗体在预防中枢神经系统由于BBB透问题的复发方面有限.
- 新兴的中枢神经系统活性疗法,如TKIs (例如,图卡提尼布) 和ADCs (例如,特拉斯图祖马布德鲁克斯泰坎) 显示出希望.
- 先进的策略,包括加强监测和新型传递系统,对于控制中枢神经系统转移至关重要.
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