Fig. 2

Raw cells stimulated by CSE showed significant M2 polarization. a shows a representative image of the frequency of M1 macrophages (F4/80+MHC-II+ cells) and M2 macrophages (F4/80+CD206+ cells). b shows cytokine expression levels in macrophages were assayed using qPCR. Data represent one of two independent experiments. Error bars, SEM. *P < 0.05, **P < 0.01, ***P < 0.001