Neutrophil chemotaxis. Transwell images showing that After TGL (12.5 μg/mL, 25 μg/mL, 50 μg/mL, 100 μg/mL) stimulation for 2 h, the number of migrating neutrophils increased compared with that of the PBS+MΦ group. Compared with the PBS group, neither the macrophage group nor the TGL group significantly induced migration of neutrophils; *P<0.01 as compared to the PBS+MΦ group.