Fucoidin, a potent inhibitor of leukocyte rolling, prevents neutrophil influx into phorbol-ester-induced inflammatory sites in rabbit lungs.

Fucoidin, a potent inhibitor of leukocyte rolling, prevents neutrophil influx into phorbol-ester-induced inflammatory sites in rabbit lungs.
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岩藻多糖是白细胞滚动的有效抑制剂,可防止中性粒细胞流入佛波醇酯诱导的兔肺炎症部位。

DOI:
10.1164/ajrccm.153.1.8542135
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发表时间:
1996
影响因子:
24.7
通讯作者:
Takeshi Honda
Takeshi Honda
中科院分区:
医学1区
文献类型:
--
作者:
Motomu Shimaoka;Mecumi Ikeda;Tetsuya Iida;N. Taenaka;Ikuto Yoshiya;Takeshi Honda

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已知多糖岩藻糖苷(一种硫酸化L-岩藻糖的均聚物)通过干扰L-选择素的功能来抑制白细胞滚动,这是白细胞外渗到发炎部位的过程中的早期和必要步骤。我们测试了岩藻多糖对由佛波醇肉豆蔻酸酯乙酸酯诱导的兔肺部炎症和由巯基乙酸酯诱导的兔腹膜炎症中中性粒细胞积聚的抑制作用。预处理(10 mg/kg)后连续给予(10 mg/kg/h)岩藻多糖可显著减少肺(通过支气管肺泡灌洗液中的中性粒细胞计数确定;减少97.7 +/- 0.52%)和腹腔(通过腹膜灌洗液中的中性粒细胞计数确定;减少98.4 +/- 1.29%)中募集的中性粒细胞数量。岩藻多糖处理还增加了系统中性粒细胞计数。这些结果表明,抑制白细胞滚动,这可能是岩藻糖蛋白的主要功能,导致减少中性粒细胞在炎症部位的积累,这可能有利于减轻嗜中性粒细胞介导的组织损伤。
The polysaccharide fucoidin, a homopolymer of sulfated L-fucose, is known, by interfering with the function of L-selectin, to inhibit leukocyte rolling, which is an early and essential step in the process of leukocyte extravasation into inflamed sites. We tested the inhibitory effect of fucoidin on neutrophil accumulation in lung inflammation induced by phorbol myristate acetate and peritoneal inflammation induced by thioglycollate in rabbits. Pretreatment (10 mg/kg) followed by continuous administration (10 mg/kg/h) of fucoidin dramatically reduced the number of neutrophils recruited into the lungs (determined by neutrophil counts in bronchoalveolar lavage fluid; 97.7 +/- 0.52% reduction) and peritoneal cavity (determined by neutrophil counts in peritoneal lavage fluid; 98.4 +/- 1.29% reduction). Fucoidin treatment also increased the systemic neutrophil count. These results suggest that the inhibition of leukocyte rolling, which may be a primary function of fucoidin, leads to a reduction of neutrophil accumulation at inflammatory sites, which may be beneficial for attenuating neutrophil-mediated tissue injury.
中性粒细胞介导的大鼠肺损伤中 L-选择素的需求。
DOI: --
发表时间: 1994
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影响因子: --
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期刊: Journal of immunology (Baltimore, Md. : 1950)
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DOI: --
发表时间: 1990
期刊: Journal of immunology (Baltimore, Md. : 1950)
影响因子: --
作者:
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