Fig. 9. Transmission electron micrographs HGEC were cultured on dishes either uncoated (control) or coated with 20 µg/cm2 of laminin, or GBM substrate. Arrows show laminin (b) and GBM (c); asterisks point to raised areas appearing on the basal surface in places of cell-cell contact; arrowhead indicates locally lifted areas at the basal cell surface. Scale bar, 1.5 µm.