CP significantly inhibited leukemia cells growth with a GI50 ranging from 1.2 μM to 23 μM for myeloid phenotypes, between 3.9 μM and 16.7 μM for T-lymphoblastic phenotypes and from 0.9 μM to 4.2 μM for B-lymphoblastic cell lines (Table 1). Here, CP is linked to leukemia.