Figure 2. Histogram (A) and photomicrographs (B, C) showing the cell adhesion and spreading assay in culture RSC96 cells following phosphate buffer saline (PBS, control) and neuregulin β1 (NRG β1) treatment.

Note that in cell adhesion assay, the number of adhered cells treated with NRG β1 was significantly larger than that of PBS control group (A). Also note that in cell spreading assay, more spreading cells with prominent spindle processes (arrows in C) were observed in NRG β1 treated group as compared to that of control ones (B). Scale bar = 40 µm. *P<0.05 as compared to that of control value.