Figure 6

Expression pattern of platelet-derived growth factor (PDGF) receptor-β subunit in cultured peribiliary myofibroblasts. PDGF receptor-β was detected by an avidin-biotin immunoperoxidase method (A) in most of the peribiliary cells with a myofibroblastic appearance (arrowheads) in primary culture (Day 4) and (B) in all subcultured cells (passage 3). Original magnification, × 400.