Figure 1. (A) Histological cross-section of pig epidermis after enzymatic separation with dispase. Notice that all epidermal cell layers are present and that the undulations of the basal membrane are intact. H&E staining, magnification x 100. (B,C) Bromodeoxyuridine (BrdU)-positive cells in the dorsal area of unirradiated pig epidermis, either as a solitary cell (B) or as pairs (C). Magnification x 1000. (D,E) Colonies containing >16 tightly packed, BrdU-positive cells at 14 days (D) and 25 days (E) after a single dose of 27 Gy. Magnification x 200.
