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Examples of Upk3b immunostaining in selected normal tissues. A strong apical membranous Upk3b positivity is seen in umbrella cells of urothelium of the renal pelvis (A), umbrella cells of the urinary bladder urothelium (B), amnion cells of the placenta (C), and of mesothelial cells of the peritoneum (D). Upk3b staining is absent in tissues from tonsil (E), first trimenon placenta (F), colon mucosa (G), and the renal parenchyma (H).
