Biphasic regulation of levofloxacin on lipopolysaccharide-induced IL-1β production

被引：11
|
作者：
Kitazawa, Takatoshi
Nakayama, Kuniko
Okugawa, Shu
Koike, Kazuhiko
Shibasaki, Yoshikazu
Ota, Yasuo
机构：
[1] Univ Tokyo, Grad Sch Med, Dept Infect Dis, Bunkyo Ku, Tokyo 1138655, Japan
[2] Univ Tokyo, RCAST, Lab Syst Biol & Med, Tokyo 1538904, Japan
来源：
LIFE SCIENCES | 2007年 / 80卷 / 17期
关键词：
levofloxacin; LPS; interleukin-1; beta; immunoregulatory function; fluoroquinolones;
D O I：
10.1016/j.lfs.2007.01.025
中图分类号：
R-3 [医学研究方法]; R3 [基础医学];
学科分类号：
1001 ;
摘要：
Fluoroquinolones have been known to exert modulatory activity on immune responses to microbial infection. However, the mechanism of this immunomodulation has not been well elucidated. In this study, we investigated the effect of levofloxacin on lipopolysaccharide (LPS)-induced production of interleukin-1beta (IL-1 beta) in RAW264.7 cells. We showed that LPS-stimulated release of pre-synthesized IL-1 beta was promoted by levofloxacin, in part via the p38 mitogen-activated protein kinase (MAPK) pathway. On the other hand, newly synthesized IL-1 beta production was inhibited by levofloxacin. This immunoregulatory function of levofloxacin in the later phase as well as promotion of pre-synthesized IL-1 beta release by levofloxacin in the early phase might be advantageous in the host defense to microbial pathogens. (c) 2007 Elsevier Inc. All rights reserved.
引用
收藏
页码：1572 / 1577
页数：6
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