Research Article

Substance P Increases Cell-Surface Expression of CD74 (Receptor for Macrophage Migration Inhibitory Factor): In Vivo Biotinylation of Urothelial Cell-Surface Proteins

Figure 5

CD74 confocal microscopy. Frozen bladder sections (14 μm; intact bladders) were exposed to CD74 antiserum and visualized using secondary antiserum labeled with FITC or TRITC. Control experiments included omission of the primary antiserum (panel D). (a) Saline-treated bladder with 40 objective. (b) SP-treated bladder with 40 objective. (c) SP-treated bladder with 100 objective. (d) Saline-treated bladder with 40 objective, secondary antibody only. Excitation wavelength of 488 nm wasused and emission wavelength of 505 nm and up was collected. Frame size of the image for (a), (b), and (d) is 230.3 μm 230.3 μm; optical thickness of the images is 2 μm. Frame size of the image for (c) is 92.1 μm 92.1 μm; optical thickness of the image is 0.9 μm. LP: lamina propria; NUC: nucleus; arrows indicate luminal surface of urothelial cells.
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