Oxidized low-density lipoprotein induces the production of superoxide by neutrophils
Exposure of guinea pig peritoneal neutrophils to ox-LDL led to the production of superoxide, which was measured by the formation of superoxide-dependent chemiluminescence. The cells exposed to unoxidized LDL, e.g. native LDL, acetyl-LDL, and self-aggregates of LDL showed no production of superoxide....
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Published in | FEBS letters Vol. 377; no. 3; pp. 309 - 312 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
England
Elsevier B.V
27.12.1995
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Subjects | |
Online Access | Get full text |
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Summary: | Exposure of guinea pig peritoneal neutrophils to ox-LDL led to the production of superoxide, which was measured by the formation of superoxide-dependent chemiluminescence. The cells exposed to unoxidized LDL, e.g. native LDL, acetyl-LDL, and self-aggregates of LDL showed no production of superoxide. The superoxide production was correlated with the levels of oxidative modification of LDL and reached a maximum between 10 and 30 min during incubation, but preincubating the cells with cytochalasin B decreased the superoxide production. These findings indicate that neutrophils rapidly take up ox-LDL by phagocytosis and generate superoxide which may cause superoxide-mediated lipid peroxidation in vivo. |
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ISSN: | 0014-5793 1873-3468 |
DOI: | 10.1016/0014-5793(95)01336-9 |