Endotoxin-induced changes in human platelet membranes: morphologic evidence.

Abstract:

:Interaction between human platelets and bacterial endotoxin was studied in vitro with transmission and scanning electron microscopy. Washed human platelets, whose aggregation was blocked with apyrase, were incubated in a plasma-free medium containing crude endotoxin that had previously been complexed with copper. Thirty minutes of incubation resulted in adherence of endotoxin particles to the platelet surface, breaks in the platelet plasma membrane with apparent attempts at repair, pseudoped formation, and centralization of platelet organelles. Copper appeared to potentiate these phenomena, since neither Cu2+ at low concentrations nor endotoxin alone altered the morphology of the platelet membrane. This platelet-endotoxin interaction may be an intermediary step in the detoxification and clearance of endotoxin from the plasma.

journal_name

Blood

journal_title

Blood

authors

Ausprunk DH,Das J

subject

Has Abstract

pub_date

1978-03-01 00:00:00

pages

487-95

issue

3

eissn

0006-4971

issn

1528-0020

journal_volume

51

pub_type

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