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. 2014 Jan 27;9(1):e87444. doi: 10.1371/journal.pone.0087444

Figure 1. Retinoic acid induces differentiation of NT2-D1 embryonal carcinoma cells.

Figure 1

Cells were exposed to RA for 4 days prior to examination of NANOG and POU5F1 levels. A) qRT-PCR analysis; B) western blot analysis. qRT-PCR data was normalized to GAPDH. Each bar in the histogram represents the mean of 3 independent experiments; vertical bars, ±SEM. * p<.05, ** p<0.001.