Fig. 2.
Expressions of interleukin (IL)-33 and its receptor ST2 in the spinal cords of mice after spared nerve injury (SNI). (A and B) Western blot analysis showing the time courses of the changes in the expressions of IL-33 and ST2 after SNI. Representative bands are shown on the top, and a data summary is shown on the bottom. All data are shown as the mean ± SEM. *P < 0.05, **P < 0.01 compared with the naive group; n = 4 mice for each group. (C) Immunofluorescence showing the IL-33-immunoreactivity and the ST2-immunoreactivity in the superficial ipsilateral and contralateral dorsal horns after SNI. The tissues were collected on the 7th day after SNI or sham operation. Scale bars = 100 μm.