Fig. 2
In vitro polarization of macrophages. a, b Representative dot plots of flow cytometry results after 24 h of culture of bone marrow-derived macrophages. Percentages of CCR7-, CD206-, and F4/80-positive cells. c Representative forward scatter (FSC) and side scatter (SSC) gates. d Proportions of CCR7 + F4/80 + and CD206 + F4/80 + cells. e RT-PCR results for CD86, iNOS, ARG1, CD206, and BMP-2 expression. f ELISA results for IL-4, IL-6, TNF-α, and IL-10 (*, #, and & represent P < 0.05 compared with the control, LPS, and LPS + Se@SiO2, respectively)