Fig. 5.

The RvD1 receptor ALX/FPR2 is expressed in human minor salivary glands (hMSG). Frozen hMSG sections without (A–E) and with (F–J) Sjögren's syndrome (SS) were fixed, and expression of ALX/FPR2 was detected using immunofluorescence microscopy with rabbit anti-ALX/FPR2 (green; A, B, E, F, G, and J), phalloidin (red; D, E, I, and J), and propidium iodide nuclear stain (blue; A, C, E, F, H, and J). All images were obtained and analyzed using a confocal microscope. Arrows and arrowheads indicate acinar and ductal localization of ALX/FPR2, respectively. Scale bars, 50 μm.