Fig 1. The proliferation and attachment of oral mucosal epithelial cells in the presence of calpain inhibitors.
(A) Phase contrast microscopic images of cultured rat oral mucosal epithelial cells. The bars indicate 200 μm. (B) The cells were collected and counted at 8–11 days after seeding (calpeptin, n = 4; calpain inhibitor III, n = 3; calpastatin, n = 3; B27-WT, n = 3; and cystatin C, n = 2). White blocks, controls; blue blocks, inhibitors. * P < 0.05 using Student's t-test. (C) The number of initially attached epithelial cells was determined 48 h after seeding (n = 4). The error bars indicate the SD. * P < 0.05 using Student's t-test.