Lactoferrin regulates the release of tumour necrosis factor alpha and interleukin 6 in vivo.

Lactoferrin regulates the release of tumour necrosis factor alpha and interleukin 6 in vivo.
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乳铁蛋白在体内调节肿瘤坏死因子α和白细胞介素6的释放。

DOI:
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发表时间:
1993
期刊:
International journal of experimental pathology (Print)
影响因子:
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通讯作者:
Tadeusz ZAGULSKIt
Tadeusz ZAGULSKIt
中科院分区:
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文献类型:
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作者:
M. Machnicki;M. Zimecki;Tadeusz ZAGULSKIt

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本文描述了脂多糖(LPS)诱导的牛乳铁蛋白对小鼠血清细胞因子水平的影响。经静脉滴注牛乳铁蛋白(BLF), 24小时前静脉注射50微克LPS,显著降低血清tnf - α浓度。在LPS攻毒前6-2天或12-2小时给予低于100微克的BLF以及BLF预处理均无效。此外,BLF本身诱导了较高水平的IL-6,在注射后1小时达到峰值。此外,lps注射小鼠BLF预处理后,IL-6水平略有下降,但有统计学意义。作为对照蛋白的人白蛋白没有引起细胞因子水平的任何变化。本文报道的数据提供了一个令人满意的解释,关于LF在感染中的预防作用。
The effects of bovine lactoferrin on the serum cytokine levels, induced by lipopolysaccharide (LPS) in mice, are described. Bovine lactoferrin (BLF) introduced intravenously, 24 hours before i.v. injection of 50 micrograms of LPS, significantly lowered the serum concentration of TNF-alpha. Doses of BLF lower than 100 micrograms as well as pretreatment of mice with BLF on days 6-2 or 12-2 hours before LPS challenge, were not effective. Moreover, BLF induces by itself a relatively high level of IL-6, peaking at 1 hour following injection. Pretreatment of LPS-injected mice with BLF causes, in addition, a small but statistically significant drop in IL-6 level. Human albumin, used as a control protein, did not cause any changes in the cytokine levels. The data reported herein provide a satisfactory explanation with regard to preventive activity of LF in infection.
乳铁蛋白通过抑制单核细胞释放白细胞介素 1 来减少单核细胞诱导的成纤维细胞产生骨髓集落刺激活性。
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