Additional file 3.

Effects of MEK inhibitor PD98059 on the morphological differentiation and proliferation of NPCs. NPCs were grown in medium containing 10 ng/ml bFGF. Medium was then replaced with fresh medium containing 10 ng/ml bFGF, 20 μM PD98059, and/or 1 mM VPA, as indicated, and cultures were incubated for an additional 48 h. Cultures were photographed and relative numbers of cells were estimated as described in Figure 1.

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Jung et al. BMC Cell Biology 2008 9:66   doi:10.1186/1471-2121-9-66