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IMPAC6

IMPAC6

公司名称: VetEquip
产品编号: 901808
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In vivo Analysis of Neutrophil Infiltration during LPS-induced Peritonitis
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2016-10-05
[Abstract]  Bacterial lipopolysaccharide (LPS) is present in the outer membrane of Gram-negative bacteria and functions as pathogen-associated molecular pattern (PAMP) (Whitfield and Trent, 2014). LPS therefore is a potent activator of inflammatory responses leading to cytokine release and neutrophils recruitment. The lipid A moiety of LPS activates the complex consisting of the LPS binding protein (LBP), CD14, MD-2 and Toll-like receptor 4 (TLR4) and the non-canonical inflammasome-linked caspases-4, 5 and 11, which in turn activate the canonical NLRP3 inflammasome (Shi et al., 2014; Hagar et al ... [摘要]  细菌脂多糖(LPS)存在于革兰氏阴性细菌的外膜中,并且作为病原体相关分子模式(PAMP)(Whitfield和Trent,2014)。因此LPS是炎症反应的有效活化剂,导致细胞因子释放和嗜中性粒细胞募集。 LPS的脂质A部分激活由LPS结合蛋白(LBP),CD14,MD-2和Toll样受体4(TLR4)组成的复合物和非规范的炎症小体连接的半胱天冬酶-4,5和11反过来激活典型的NLRP3炎症小体(Shi等人,2014; Hagar等人,2013; Kayagaki等人,2013; Hoshino等人,1999; Poltorak,1998; Nagai等人,2002; Park等人,2009; Ratsimandresy等人, et al 。,2013)。特别地,响应于炎症小体激活产生的细胞因子白细胞介素(IL)-1β在通过促进嗜中性粒细胞粘附和迁移的中性粒细胞募集中具有关键作用(McDonald等人,2010)。该方案允许研究的由LPS诱导的炎症反应,其通过跟踪体内髓过氧化物酶(MPO)活性来影响嗜中性粒细胞浸润(de Almeida等人,2015)。

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