期刊
EUROPEAN JOURNAL OF CANCER
卷 73, 期 -, 页码 93-101出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ejca.2016.12.012
关键词
Metastatic melanoma; MAP kinase pathway; BRAF mutation; Secondary and adaptive resistance; Immune effects of BRAF inhibition
类别
BRAF mutation can be identified in about 45% of the patients with metastatic melanoma. In these patients, BRAF and MEK inhibitors are able to induce rapid responses and to prolong survival. However, a significant percentage of patients will develop resistance to targeted therapy and will have progressive disease. MAPK pathway is the most important pathway involved in BRAF/MEK inhibition resistance, particularly MAPK pathway reactivation. Resistance mechanisms can be classified as 1) primary or intrinsic characterised by no response to therapy, 2) secondary or acquired with MAPK pathway reactivation after a time of tumour regression and 3) as adaptive with initial response and early resistance. BRAF inhibition also alters the immune response. Several publications have described immune effects of BRAF inhibition in melanoma tumours, showing that combining targeted and immunotherapy can improve response, despite a possible cross-resistance. Here, we continue the review on resistance mechanisms to BRAF/MEK inhibition and focus on the secondary and adaptive mechanisms. (C) 2017 Elsevier Ltd. All rights reserved.
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