Figure 2: Confocal microscopy studies of pancreatic cells in cultre loaded with the fluorescent probe Mito-Tracker Green FM. The picture shows a representative fluorescence image of pancreatic cells in culture labeled with MitoTracker Green FM. The dye selectively accumulates inside mitochondria. Bright fluorescent spots forming a consistent network could be detected all through the cytosolic area. Viability of cells was not decreased under culture conditions and in the absence of stimulus. The experiments were performed after the cells had grown for 7 days (n = 3 independent preparations).