Figure 1

Glial fibrillary acidic protein (GFAP) expression stimulated by recombinant transforming growth factor-β (TGF-β) in cultured Müller cells. A, Weak GFAP expression is observed without stimulation (control). TGF-β increased GFAP expression in a dose-dependent manner. Nonspecific staining is shown as a lane loading control. B, Semiquantitative data were generated by scanning film exposures of the gel using a densitometer. Three independent examinations were made and the results are expressed as the “fold” increase over the control GFAP expression (mean ± sd; * p < 0.05).