Figure 1. Effect of cholera toxin (CT) on newborn mouse lacrimal gland epithelial cell cultures. Lacrimal gland (A) and H&E staining (B) of the lacrimal gland. Arrows: sections used for culturing. Primary cultures of lacrimal gland epithelial cells after 10 days with (E) or without (C) CT. Cells at P1 after 2 days with (F) or without (D) CT. Scale bars, 100 µm.