Currently epidermal growth factor receptor tyrosine kinase inhibitor (EGFR-TKI) is widely used for treatment of non-small cell lung cancer (NSCLC) patients with EGFR mutation. However, intracranial metastasis and progression could happen to some patients while their primary tumors in lung stabilize or even shrink after EGFR-TKI treatment. And mechanisms on this phenomenon remain unclear. Recently, increasing studies have demonstrated that it is associated with the pharmacokinetics of EGFR-TKI, heterogeneity between primary tumors and metastases, EGFR mutation status and prolonged survival. Therefore, we write this review to discuss the mechanisms on intracranial metastasis of NSCLC after clinical benefit from EGFR-TKI.
表皮生长因子受体酪氨酸激酶抑制剂（epidermal growth factor receptor tyrosine kinase inhibitor, EGFR-TKI）广泛用于治疗EGFR突变阳性的非小细胞肺癌（non-small cell lung cancer, NSCLC）。然而，部分患者在接受EGFR-TKI治疗后、原发病灶稳定甚至缩小的同时，却出现了新发颅内转移灶或者原有颅内病灶进展，其机制未明。近年来多项研究表明，这种现象可能与EGFR-TKI的药物代谢动力学、NSCLC原发灶与转移灶的异质性、EGFR突变本身特质及患者生存期的延长有关。因此，本文就NSCLC患者在EGFR-TKI治疗临床获益后发生颅内转移的相关机制研究进展作一综述。.