SDF-1β induces locomotion of RMS cells.

Trajectories of 100 CW9019, 50 SMS-CTR, 100 RH30, and 100 A204 cells locomoting in RPMI-1640 (control conditions; A,C,E,G, respectively) and in the presence of SDF-1β (300 ng/mL; B,D,F,H, respectively) displayed in circular diagrams drawn with the initial point of each trajectory placed at the origin of the plot. The images were recorded for 200 minutes, and the positions of cell centroids at 5-minute time intervals were determined.