Table 1.

DIAS analysis of chemokinetic and chemotactic movement. Jurkat T cells were cultured under agarose in the presence of uniform concentrations or in a gradient of the stimuli. Cells were imaged over time and their motile behavior quantified. Persistence is an indicator of the rate of directional change. Chemotactic index is a measure of the proportion of movement in a designated direction (1 = toward a source, 0 = random movement, -1 = away from the source).

Stimulus (n = number of analyzed cells)	Average translational speed (μm/min)	Persistence (μm/minute-degree)	Chemotactic index
Media control (7)	0.66 ± 0.29	0.18 ± 0.11	0.19
Uniform concentration of metallothionein (10)	2.110 ± 0.73	0.5 ± 0.22	0.07
Uniform concentration of SDF-1α (10)	1.69 ± 0.82	0.53 ± 0.34	0.09
Metallothionein gradient (7)	6.6 ± 3.2	2.042 ± 1.09	0.73
SDF-1α gradient (7)	3.31 ± 1.48	1.17 ± 0.49	0.72