FIG. 2.

Effect of UVB preconditioning on migration and tube-forming activities. (A, B) A low dose of UVB significantly increased the migration of ASCs in chamber (A) and cell scratch (B) migration assays. (C) Tube formation on Matrigel was enhanced by UVB irradiation, and tube length was measured. (D) In angiogenesis chip array, protein expression of coagulation factor III, uPA, VEGF, and HGF was upregulated in EGM2 after UVB radiation (gray bars: control, black bars: UVB treatment). *P<0.05; **P<0.01. uPA, urokinase-type plasminogen activator; VEGF, vascular endothelial growth factor; HGF, hepatocyte growth factor; EGM2, endothelial growth medium.