FIGURE 6:
Silencing MS4A4 alters KIT colocalization with caveolin-1 but not clathrin. (A) Immunofluorescence confocal microscopy of scramble shRNA–treated (left) and shMS4A4- treated (right) LAD-2 cells stained with rabbit anti-clathrin HC (secondary, AF488; green) and mouse anti-KIT (APC, red) left unstimulated or stimulated with SCF for 2 min. Scale bars, 5 μm. (B) Manders coefficient of colocalization of KIT and clathrin HC at times indicated (minutes) after SCF stimulation. (C) Immunofluorescence confocal microscopy of scramble shRNA–treated (left) and shMS4A4-treated (right) LAD-2 cells stained with rabbit anti–caveolin-1 (secondary, AF488; green) and mouse anti-KIT (APC, red) left unstimulated or stimulated with SCF for 2 min. Scale bars, 5 μm. (D) Manders coefficient of colocalization of KIT and caveolin-1 with SCF stimulation time course. For B and D, bars are mean + SEM from the volume of 16 stacks of images from two separate experiments. **p < 0.01, ***p < 0.001, two-way ANOVA.