Fig. 3From: Melatonin decreases in vitro viability and migration of spheres derived from CF41.Mg canine mammary carcinoma cellsMelatonin decreases migration ability of spheres derived from CF41.Mg canine mammary carcinoma cells. Representative photomicrographs of migration ability in CF41.Mg monolayer of cells and CF41.Mg-spheres in response to non-cytotoxic concentrations of melatonin (0–0.1 mM) for 24 h. The migrating cells were stained with Giemsa and counted in a light microscope. Scale bars: 100 μm. Histogram quantifies migrating CF41.Mg cells (black) and CF41-Mg-spheres (white). Means ± SD of three independent transwells in duplicate. *P < 0,05 compared with the control cellsBack to article page