Figure 3. Real time PCR confirmation of the microarray results. Compared with control conditions, stimulation of human corneal fibroblasts with TGFβ1 induced 3.92, 6.34, and 3.35 fold increases in the abundance of collagen I, collagen IV and α-SMA, respectively. Compared with TGFβ treated cells, TSA and TGFβ treatment down-regulated the expressions of collagen I (0.48 fold), collagen IV (0.52 fold) and α-SMA (0.41 fold).