FIG. 7.

Effect of differentiation on gene expression. Total RNA from NT2 precursor cells and hNT neurons was reverse transcribed, and quantitative PCRs were performed for repair genes (top panel) or nonrepair genes (bottom panel) (note the change in scale). Normalization was achieved by coamplifying a reference gene, either the GAPDH or β-actin gene. Bars show the means of one to six measurements, depending on the gene; the error bars indicate standard error of the mean. Data are expressed as the ratio of expression in hNT neurons to that in NT2 cells.