Figure 2

IL-1 decreased cell proliferation in the wound. (A) Representative confocal images of the micro-wound from inner zone cells that were treated with 0, 0.1 ng/mL, 1 ng/mL, or 10 ng/mL IL-1 for 48 hours after the scratch. In the confocal images, cells that have proliferated are yellow and all cells are labeled red. The scale bar is equal to 100 μm. (B) For inner zone cells, total cells in the wound, proliferated cells in the wound, migrated cells in the wound, and proliferated cells at the edge at 24 and 48 hours are graphed as a percentage + standard error of the starting cell density at the edge of the scratch. a: P < 0.01 compared to control at 48 hours; b: P < 0.05 compared to all other treatments at 24 hours; c: P < 0.005 compared to all other treatments; d: P < 0.05 compared to 1 ng/mL and 10 ng/mL at 48 hours. (C) Representative confocal images of the micro-wound from outer zone cells that were treated with 0, 0.1 ng/mL, 1 ng/mL, or 10 ng/mL IL-1 for 48 hours after the scratch. (D) For outer zone cells, total cells in the wound, proliferated cells in the wound, migrated cells in the wound, and proliferated cells at the edge at 24 and 48 hours are graphed as a percentage + standard error of the starting cell density at the edge of the scratch.