Figure 9. RP11-552D4.1 facilitates neuronal proliferation. (A) The expression of RP11-552D4.1 in si-RP11 was verified. (B) After primary cortical neurons were transfected with si-NC or si-RP11-552D4.1, a CCK-8 assay was applied to assess the cell proliferation. (C) Effect of si-RP11-552D4.1 on neuronal proliferation (Green: MAP2, Red: β-tubulin, Merged with DAPI). (D, E) Quantification of the mean density of MAP2 and β-tubulin. The scale bar is 100 μm. *P < 0.05 (compared to the si-NC group).