Iron storage in macrophages and endothelial cells. histochemistry, ultrastructure, and clinical significance
- 1 April 1976
- journal article
- Published by Springer Nature in Annals of Hematology
- Vol. 32 (4) , 289-295
- https://doi.org/10.1007/bf01005312
Abstract
L hour after i. v. infusion of colloidal iron in iron deficient subjects uniform phagosomal iron granules were observed in macrophages and endothelial cells of several organs. 7 to 10 days later transformation into ferritin could be visualized in macrophages only. Now, these cells showed diffuse iron staining of the cytoplasm due to dispersed ferritin molecules. Polymorphous lysosomes contained densely packed particles from still unchanged ferric hydroxide to paracristalline ferritin. The macrophageal iron was mobilizable in few days to several weeks. The uniform lysosomal iron granules of endothelial cells disappeared after 1 to 2 years. Endothelial iron siderosis without previous i.v. iron application was a frequent finding in pernicious anaemia and iron overload of diverse origin. l Stunde nach i.v. Infusion kolloidaler EisenprÄparate wurden gleichförmige phagosomale Eisengranula in Makrophagen und Endothelzellen verschiedener Organe gefunden. 7 bis 10 Tage spÄter konnte eine Umwandlung in Ferritin nur in Makrophagen sichtbar gemacht werden. Diese Zellen zeigten nun eine diffuse, durch fein verteiltes Ferritin bedingte EisenfÄrbung des Zytoplasma. Die polymorphen Lysosomen enthielten dicht gelagerte Eisenteilchen von z.T. noch unverÄndertem Ferrihydroxyd bis zu parakristallinem Ferritin. Das Makrophageneisen war in wenigen Tagen bis zu mehreren Wochen mobilisierbar. Die uniformen lysosomalen Eisengranula der Endothelzellen schwanden nach 1 bis 2 Jahren. Eine endotheliale Siderose ohne vorherige i.v. Eisengabe war ein hÄufiger Befund bei perniziöser AnÄmie und Eisenüberladung verschiedener Ätiologie.Keywords
This publication has 7 references indexed in Scilit:
- [Iron storage and metabolism in nacrophages and endothelial cells after intravenous administration of colloidal ferric saccharate in man].1976
- Availability of iron stores built up by iron dextrin as studied with desferrioxamine and phlebotomy.1972
- Diagnostische Kriterien des prälatenten, latenten und manifesten EisenmangelsJournal of Molecular Medicine, 1971
- [Staining technics and histochemical reactions in thin synthetic resin sections for light microscopic examination].1969
- Inter-Relations between Iron Stores, General Factors and Intestinal Iron AbsorptionActa Haematologica, 1969
- The Ultrastructure of Bone Marrow Histiocytes in Megaloblastic Anaemia and the Anaemia of InfectionBritish Journal of Haematology, 1968
- Differents aspects du fer dans l'organismeThe Journal of cell biology, 1959