Figure 4
Validation of microarray results. (a) Microarray levels (grey bars) represent the signal intensity of probe-sets corresponding to the same gene (averaged when more than one present). qRT-PCR data (black bars) are obtained utilizing a GAPDH standard curve. Relative expression levels with respect to those of MSCs are shown. (b) Correlation between microarray (X axis) and qRT-PCR (Y axis) expression values (fold-differences versus MSCs). triangles = Spp1, circles = Fn1, diamonds = Thbs1, squares = Thbs2, violet = Heart, red = Brain, yellow = Lung, rose = Kidney, orange = DCs, green = MEFs, tan = NSCs, grey = T cells, blue = ESCs, gold = Muscle, turqoise = Liver.