Ultrastructural immunoperoxidase demonstration of autologous albumin in the alveolar capillary membrane and in the alveolar lining material in normal rats.
The location of autologous serum albumin within the alveolar-capillary membrane was studied in the rat under physiological conditions using antialbumin antibodies labeled with peroxidase. Albumin was detected in the lung interstitium, and in numerous pinocytic vesicles within endothelial cells and type I alveolar epithelial cells. The immunoreaction was also positive at the level of plasmalemmal membranes of both cell types and in the alveolar lining material.
D000818:Animals; D000906:Antibodies; D001485:Basement Membrane / Q000032:analysis; D002196:Capillaries / Q000032:analysis* / Q000648:ultrastructure; D004847:Epithelial Cells; D004848:Epithelium / Q000648:ultrastructure; D007140:Immunoglobulin Fab Fragments; D007074:Immunoglobulin G; D007158:Immunologic Techniques; D008297:Male; D008833:Microcirculation; D008854:Microscopy, Electron / Q000379:methods; D010544:Peroxidases / Q000276:immunology; D010944:Plants / Q000201:enzymology; D011650:Pulmonary Alveoli / Q000032:analysis* / Q000648:ultrastructure; D011652:Pulmonary Circulation; D051381:Rats; D012709:Serum Albumin / Q000276:immunology / Q000302:isolation & purification*; D012756:Sheep / Q000276:immunology
D000906:Antibodies; D007140:Immunoglobulin Fab Fragments; D007074:Immunoglobulin G; D012709:Serum Albumin; D010544:Peroxidases