Merck
CN

L9143

Sigma-Aldrich

脂多糖 来源于绿脓假单胞菌 10

purified by phenol extraction

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别名:
LPS
MDL编号:
NACRES:
NA.25

生物来源

Pseudomonas aeruginosa (10)

质量水平

形式

lyophilized powder

纯化方式

phenol extraction

杂质

<3% Protein (Lowry)

颜色

white to faint yellow

溶解性

water: 4.90-5.10 mg/mL, faintly hazy to hazy, colorless to faintly yellow

运输

ambient

储存温度

2-8°C

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一般描述

本品是从铜绿假单胞菌(Pseudomonas aeruginosa )血清型10.22中提取得到的苯酚。来源菌株为ATCC 27316。

应用

脂多糖 (LPS) 是革兰氏阴性菌细胞壁的特征性成分。LPS 及其脂质 A 部分通过 Toll 样受体 4 (TLR4) 刺激先天免疫系统的细胞,TLR4 是 Toll 样受体蛋白家族的成员之一,可识别常见的病原体相关分子模式 (PAMP)。

生化/生理作用

脂多糖(LPS)位于膜的外层,并且暴露在无包膜菌株的细胞表面。它们有助于维持外层膜的完整性,并保护细胞免受胆汁盐和亲脂性抗生素的破坏。

制备说明

本品溶于水(5 mg/ml)或细胞培养基(1 mg/ml),得到浑浊的淡黄色溶液。以盐水为溶剂时,经过涡旋并加热至70-80 oC后,得到浓度更高但仍然浑浊的溶液(20 mg/ml)。脂多糖分子可在各种溶剂中形成胶束。在水和磷酸盐缓冲盐水中,可观察到混浊的溶液。使用有机溶剂不会得到更澄清的溶液。以甲醇为溶剂将得到含漂浮物的混浊悬浮液,而以水为溶剂将得到均匀的混浊溶液。

其他说明

为了全面了解我们针对客户研究提供的各种脂多糖产品,建议您访问我们的碳水化合物分类页面。

储存分类代码

11 - Combustible Solids

WGK

WGK 3

闪点(°F)

Not applicable

闪点(°C)

Not applicable

个人防护装备

Eyeshields, Gloves, type N95 (US)


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Jing Zhang et al.
Immunology and cell biology, 87(2), 141-148 (2008-10-22)
In the present study we tested the responsiveness of human corneal epithelial cells (HCECs) and corneal fibroblasts to lipopolysaccharide (LPS), a Toll-like receptor (TLR) 4 ligand. Purified Pseudomonas aeruginosa LPS was used to stimulate telomerase-immortalized HCECs (HUCL) and stromal fibroblast
Bingji Jin et al.
Experimental animals, 67(3), 337-347 (2018-03-13)
The epithelial sodium channel (ENaC) and mitogen-activated protein kinase (MAPK) pathway have been reported to be associated with the progression of acute lung injury (ALI). Oxymatrine (OMT) alone or combined with other drugs can ameliorate paraquat- or oleic acid-induced lung
Sudarshan Singh Rathore et al.
Scientific reports, 7(1), 15400-15400 (2017-11-15)
Cryptococcus neoformans infection is quite complex with both host-pathogen interaction and host immune profile determining disease progress and therapeutic outcome. Hence in the present study, the potential utility of (E)-5-benzylidenedihydrofuran-2(3 H)-one (compound-6) was explored as an effective anticryptococcal compound with immunomodulatory
Keiko Yamauchi et al.
International journal of biological sciences, 5(7), 667-678 (2009-11-07)
Azithromycin (AZM), a 15-member macrolide antibiotic, possesses anti-inflammatory activity. Macrophages are important in innate and acquired immunity, and produce pro-inflammatory cytokines such as interleukin (IL)-12, which are composed of subunit p40 and p35. The key function of IL-12 is the
Khaled Taha-Abdelaziz et al.
Veterinary research, 47, 44-44 (2016-03-19)
β-defensins are an important element of the mucosal innate immune response against bacterial pathogens. Tracheal antimicrobial peptide (TAP) has microbicidal activity against the bacteria that cause bovine respiratory disease, and its expression in tracheal epithelial cells is upregulated by bacterial

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