REL and chronic myelogenous leukemia, BCR-ABL1 positive: MNT–REL interaction was not detected in other cell lines tested, e.g., SH-SY5Y (neuroblastoma), HEK293T (embryonic kidney), K562 (chronic myeloid leukemia), A549 and H1299 (lung cancer), and HEPG2 (hepatocellular carcinoma).