Immunohistochemical evidence for the presence of collagen type III in human arterial walls, arterial thrombi, and in leukocytes, incubated with collagen in vitro
- 1 October 1975
- journal article
- research article
- Published by Springer Nature in Journal of Molecular Medicine
- Vol. 53 (19) , 899-902
- https://doi.org/10.1007/bf01468981
Abstract
Sections of arterial walls and of thrombi and smears of leukocytes previously incubated in vitro with collagen type III were examined by immunohistochemical technique for the presence of collagen types I, II and III. In arterial walls collagen type III was detected immediately underlaying the endothelial cell layer and in the tissue between tunica elastica interna and adventitia. Collagen type I was not shown in the subendothelial layer. Fresh thrombi contained occasionally collagen, but only of type III. This was associated with leukocytes. Leukocytes were capable in vitro to associate and/or phagocytose collagen type III and this could be visualized immunohistochemically. The data show that collagen type III in vivo may play a crucial role in the initiation of thrombus formation. Schnitte von arteriellen Gefäßwänden und von Thromben sowie Ausstriche von Leukocyten, die in vitro mit Kollagen Typ III inkubiert worden waren, wurden mit Hilfe der indirekten Immunfluorescenz auf die Verteilung und Anwesenheit von Kollagen Typ I, II und III untersucht. In Arterienwänden wurde Kollagen Typ III direkt subendothelial gefunden, sowie zwischen Tunica elastica interna und Adventitia. Kollagen Typ I war in der subendothelialen, der Tunica elastica interna direkt aufliegenden Schicht nicht nachweisbar. Frische Thromben enthielten gelegentlich Kollagen, jedoch nur Typ III. Dieses war mit Leukocyten assoziiert. Auch in vitro waren Leukocyten in der Lage, Kollagen Typ III zu assoziieren und/oder phagocytieren. Solches Kollagen war immunohistochemisch nachweisbar. Die Ergebnisse zeigen, daß Kollagen Typ III vermutlich eine entscheidende Rolle bei der arteriellen Thrombusbildung spielt.Keywords
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