Figure 5. TSA and NaBu inhibited the proliferation of corneal fibroblasts. Human (A) or mouse (B) corneal fibroblasts were treated with 400 nM TSA or 5 mM NaBu for 3 days. In vitro proliferation assays were performed with the fluorescent dye CFSE and analyzed by FACS. Loss of CFSE fluorescence reflects cellular division.