Figure 8

(a–d) Immunoelectron microscopy revealed ICs labeled PDGFRα in the lamina propria and smooth muscle layer. (b) High magnification of the solid black line square area in (a). (d) High magnification of the solid black square area in (c). A total of 10 nm colloidal golds homogeneously labeled in the cytoplasm of ICs (b,d). Scale bars: 2 μm (a,c); 500 nm (b,d).