Sachiko Arai, Shinji Takeuchi, Koji Fukuda, Hirokazu Taniguchi, Akihiro Nishiyama, Azusa Tanimoto, Miyako Satouchi, Kaname Yamashita, Koshiro Ohtsubo, Shigeki Nanjo, Toru Kumagai, Ryohei Katayama, Makoto Nishio, Mei-Mei Zheng, Yi-Long Wu, Hiroshi Nishihara, Takushi Yamamoto, Mitsutoshi Nakada, Seiji Yano
INTRODUCTION: Leptomeningeal carcinomatosis (LMC) occurs frequently in anaplastic lymphoma kinase (ALK)-rearranged NSCLC and develops acquired resistance to ALK tyrosine kinase inhibitors (ALK TKIs). This study aimed to clarify the resistance mechanism to alectinib, a second-generation ALK TKI, in LMC and test a novel therapeutic strategy. METHODS: We induced alectinib resistance in an LMC mouse model with ALK-rearranged NSCLC cell line, A925LPE3, by continuous oral alectinib treatment, established A925L/AR cells...
May 2020: Journal of Thoracic Oncology