Figure 4From: In vitroeffects of fetal rat cerebrospinal fluid on viability and neuronal differentiation of PC12 cellsBeta III tubulin expression (green) in PC12 cells counterstained with propidium iodide (red). Beta III tubulin is expressed in PC12 cells cultured in normal media (A), media with b-FGF (10 ng/ml) (B), or with E-CSF from E17 (C), E19 (E) or E20 (F) but not in cells cultured with E18 CSF (D).Back to article page