(A) Kaplan-Meier survival curves for
Itgb8–/– mice (n=17),
Itgb8–/– mice with 6.3G9 treatment starting at
P3 (n=4), Itgb8–/– mice with 6.3G9
treatment starting at P0 (n=8), and
Itgb8–/– mice with 6.3G9 treatment starting at
E16.5 (n=12). (B) Hematoxylin and eosin staining of liver, lung,
stomach and heart of representative Itgb8–/–
and littermate non-KO control mice treated with 6.3G9 starting at E16.5 and
sacrificed at 19 days. (C) Itgb8–/– mice
treated with 6.3G9 starting at E16.5 lack Langerhans cells (LCs).
Representative examples of epidermal sheets stained with an antibody that
recognizes LCs. (D) Tregs isolated from thymus and spleen were identified by
staining for FOXP3. Cells are from control mice,
Itgb8–/– mice, and control and
Itgb8–/– mice treated with 6.3G9 starting at
E16.5. (n=3-4 for thymus, n=3 for spleen). Error bars
represent the s.e.m. Scale bar: 100 μm.