Neutrophil-derived reactive oxygen species can modulate neutrophil adhesion to endothelial cells in preeclampsia.
Neutrophil-derived reactive oxygen species can modulate neutrophil adhesion to endothelial cells in preeclampsia.
复制标题
中性粒细胞衍生的活性氧可以调节先兆子痫中中性粒细胞与内皮细胞的粘附。
DOI:
10.1038/ajh.2007.87
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发表时间:
2008
影响因子:
3.2
通讯作者:
N. Wake
中科院分区:
文献类型:
--
作者:
K. Tsukimori;Akitoshi Tsushima;K. Fukushima;H. Nakano;N. Wake
BACKGROUND
Neutrophil activation has been implicated in the pathophysiology of preeclampsia. The aim of this study was to investigate whether neutrophil-derived reactive oxygen species (ROS) modulate adhesion to endothelial cells in preeclampsia.
METHODS
We first assessed neutrophil superoxide production and neutrophil-endothelial cell adhesion in normal nonpregnant women (n = 8), normal pregnant women (n = 10), and preeclamptic pregnant women (n = 8). We then examined the effects of neutrophil-derived ROS on neutrophil-endothelial adhesion. The release of neutrophil superoxide was measured using cytochrome C reduction.
RESULTS
N-formyl-methionyl-leucyl-phenylalanine (FMLP)-stimulated superoxide production by neutrophils was significantly increased in women with preeclampsia when compared with the other two groups. Neutrophils from women with preeclampsia were more likely to adhere to endothelial cells, than were those from the other two groups (mean adhesion rate +/- s.d. (%); 20.6 +/- 2.7 in preeclampsia, 10.2 +/- 1.2 in normal pregnancy, 11.0 +/- 0.9 in normal nonpregnancy, P < 0.01). Superoxide dismutase (SOD), which dismutates the excess superoxide to hydrogen peroxide, did not affect neutrophil-endothelial adhesion. In contrast, catalase, which catalyzes the conversion of hydrogen peroxide to oxygen and water, inhibited neutrophil-endothelial adhesion in the preeclamptic group (8.1 +/- 0.5%, P < 0.01).
CONCLUSION
Neutrophils from women with preeclampsia demonstrate increased CD11b expression and adhesion to endothelial cells. This is likely caused by elevations in superoxide and its derivative, hydrogen peroxide.
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DOI:
10.1172/jci119224
发表时间:
1997
期刊:
The Journal of clinical investigation
影响因子:
--
作者:
Horie,Y;Wolf,R;Anderson,DC;Granger,DN
通讯作者:
Granger,DN
DOI:
10.1073/pnas.88.11.4651
发表时间:
1991-06-01
影响因子:
11.1
作者:
KUBES, P;SUZUKI, M;GRANGER, DN
通讯作者:
GRANGER, DN
DOI:
10.1152/ajpcell.1996.271.5.c1424
发表时间:
1996
期刊:
The American journal of physiology
影响因子:
--
作者:
Beckman,JS;Koppenol,WH
通讯作者:
Koppenol,WH
DOI:
10.1111/j.0954-6820.1987.tb09912.x
发表时间:
2009-04
期刊:
Acta medica Scandinavica. Supplementum
影响因子:
--
作者:
J. Harlan
通讯作者:
J. Harlan
影响因子:
20.3
作者:
Furie,MB;Tancinco,MC;Smith,CW
通讯作者:
Smith,CW