抗HER2向疗法:对人体体内血脑屏障模型的影响
Carolin J Curtaz1, Rebecca Gebert2, Achim Wöckel1
1Department of Gynecology and Obstetrics, University Hospital Würzburg, Würzburg, Germany.
Frontiers in drug delivery
|January 23, 2026
概括
转移性乳腺癌的抗HER2疗法对血脑屏障 (BBB) 产生各种影响. 特拉斯图祖马布和特拉斯图祖马布/珀图祖马布改变了BBB基因表达,而拉帕提尼布和图卡提尼布对细胞活性的影响取决于度.
科学领域:
- 在瘤学瘤学.
- 神经科学是一个神经科学.
- 药理学 药理学是指药理学的学科.
背景情况:
- 转移性乳腺癌,特别是HER2阳性类型,经常导致大脑转移,严重影响患者的生存和生活质量.
- 已建立的抗HER2疗法 (trastuzumab,pertuzumab,lapatinib,tucatinib) 对HER2阳性乳腺癌至关重要,但它们对血脑屏障 (BBB) 的影响仍然在很大程度上未被描述.
研究的目的:
- 使用体外模型研究常用的抗HER2疗法对血脑屏障 (BBB) 的完整性和功能的影响.
- 评估特鲁祖马布,珀图祖马布,特鲁祖马布/珀图祖马布,拉帕蒂尼布和图卡蒂尼布对内皮细胞活力,透性和与BBB功能相关的基因表达的影响.
主要方法:
- 使用了两个体外人类BBB模型:来自CD34+细胞的脑样内皮细胞 (BLEC) 和hCMEC/D3细胞系.
- 用不同度的抗HER2药物治疗内皮细胞24小时和48小时.
- 评估了关键BBB相关基因的细胞活力,超内皮电阻 (TEER),细胞透性 (使用光素) 和mRNA表达特征.
主要成果:
- 大多数抗HER2治疗没有显著影响内皮细胞活力,TEER或透性.
- 拉帕提尼布和图卡提尼布表现出剂量依赖的作用,低度可能增加活力,高度 (5μg/mL) 显示有毒性.
- 特拉斯图祖马布和特拉斯图祖马布/佩尔图祖马布治疗改变了对BBB功能至关重要的mRNA基因的表达,包括排泄 (ABCB1,ABCG2),葡萄糖转运器 (SLC2A1),紧密结合蛋白 (OCLN,CLDN5) 和化学激素 (CCL2).
结论:
- 反HER2向治疗对体外血脑屏障表现出明显的时间和度依赖的影响.
- 特定的药物,如trastuzumab和trastuzumab/pertuzumab可以调节关键BBB标记基因的表达,这表明屏障功能的潜在变化.
- 需要进行进一步的研究,以阐明这些观察到的体外效应对晚期HER2阳性乳腺癌患者BBB属性的临床意义.
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