After a 2 h exposure to MYX, the concentrations necessary to produce 50% inhibition of colony formation were 100, 25, 1.2, and 0.25 μM, respectively, which was inversely related to the ability of the tumor cells to accumulate MTX-PGs, suggesting the marked differences in the accumulation of MTX-PGs between the tumor cells. Here, MXD3 is linked to neoplasm.