Movie S1.

(Upper) Motion of LDs in an elongated McA-RH7777 hepatoma cell seen under a differential interference contrast (DIC) microscope (100×). Note the LD (red arrow) that moves to the periphery of the cell rapidly. LDs are also seen clustered at the two peripheries of this cell. (Lower) EB1 comets seen in the same cell suggest that the microtubule plus ends are located toward the periphery of these elongated cells.