Variable Response to ALK Inhibitors in NSCLC with a Novel MYT1L-ALK Fusion

... We discuss the initial report of a myelin transcription factor 1 like gene (MYT1L)-ALK fusion identified in the tumor of a patient with metastatic NSCLC, and the tumor's unique response to treatment... In this case, NGS revealed a large duplication event in chromosome 2, resulting in a novel MYT1L-ALK fusion. Myelin transcription factor 1-like protein is located on the cytoplasmic surface of the Golgi membranes and the endoplasmic reticulum and is an important factor in the cell cycle (specifically, in checkpoint recovery).4 Because ALK fusion partners may be a determinant of response to treatment and its possible future resistance type,5 detection of these fusions is crucial. Fluorescence in situ hybridization testing for ALK failed to detect the fusion in either the primary lung cancer and the liver metastases. The ability of NGS to detect ALK fusions and their fusion partners may increase patients’ therapeutic options. Identifying novel events such as the MYT1L-ALK fusion may b..... READ ARTICLE

Journal of Thoracic Oncology DOI:10.1016/j.jtho.2018.10.169

Authors: Terrence C. Tsou, Kyle Gowen, Siraj M. Ali, Vincent A.Miller, Alexa B. Schrock, Christine M. Lovly, Karen L. Reckamp