Figure 10. Schematic of the transgenic apoptosis reporter construct.
A, the transgene depicted contains the ER-LACZ-ER coding sequence (see Figure 7) under the transcriptional control of the keratin 5 (KRT5) promoter. B & C, Immunohistochemical analysis of formalin-fixed, paraffin-embedded dorsal skin sections from nontransgenic (control) (B) and transgenic (C) mice (ER-LACZ-ER transgenic). Presence of β-galactosidase protein and KRT5 was detected using the appropriate antisera. DAPI (4,6-diamidino-2-phenylindole) staining was used to identify nuclei. In control animals, KRT5 staining but not b-galactosidase staining was observed, whereas in transgenic animals, KRT5 staining and β-galactosidase staining was detected in similar populations within the section. Bar = 40 μm. (From [48], with permission).
