These data indicate that the proliferation inhibition of CML cells harboring T315I-mutated or wild-type BCR-ABL is not related to apoptosis after the treatment of BaF3-WT, k562, and BaF3-T315I cells with I13 at less than 1.2, 1, and 2.2 μM, respectively. The gene discussed is BCR; the disease is chronic myelogenous leukemia, BCR-ABL1 positive.