Lipopolysaccharides

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Lipopolysaccharides

本产品不向个人销售，仅用作科学研究，不用于任何人体实验及非科研性质的动物实验。

包装与价格：

包装	价格(元)
5mg	电议
10mg	电议
25mg	电议
50mg	电议
100mg	电议

产品介绍

Lipopolysaccharides (LPS) 脂多糖是从革兰氏阴性菌外膜的外叶中提取的内毒素，由一个抗原 O- 特异性链、一个核心寡糖和脂质 A 构成。Lipopolysaccharides 是一种激活免疫系统的致病相关分子模式 (PAMP)。Lipopolysaccharides 激活免疫细胞的 TLR-4。本产品来源于大肠杆菌 O55:B5。

别名

脂多糖; LPS

溶解度

H2O : 5 mg/mL (Need ultrasonic)

储存条件

Store at -20°C

General tips

For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.

Shipping Condition

Evaluation sample solution : ship with blue ice
All other available size: ship with RT , or blue ice upon request

产品描述

Lipopolysaccharides (LPS) is an endotoxin derived from the outer leaflet of the outer membrane of Gram-negative bacteria. Lipopolysaccharides consists of an antigen O-specific chain, a core oligosaccharide and lipid A. Lipopolysaccharides is a pathogenic associated molecular pattern (PAMP) that activates the immune system. Lipopolysaccharides activatesTLR-4on immune cells^[1]^[2]^[3]. This product is derived fromEscherichia coliO55:B5.

Lipopolysaccharides (10-80 μg/mL) selectively decreases THir (tyrosine hydroxylase immunoreactive) cells and increases culture media levels of interleukin1β (IL-1β) and tumor necrosis factor-α (TNF-α) as well as nitrite (an index of nitric oxide (NO) production)^[4].

Lipopolysaccharides (1.5 mg/kg; i.p.; once) induces sickness and hypothermia in mice, and induces a greater and more prolonged sickness response in adult male mice^[3].

Animal Model:	Female and male CD1 mice^[3]
Dosage:	1.5mg/kg
Administration:	Intraperitoneal injection, once
Result:	Induced sickness behavior in all mice, but adult mice displayed more sickness than pubertal mice and adult males remained sick for a longer period of time than adult females. Caused a decrease in body temperature for all mice, but this decrease was greatest in adult males. Increased pro- and anti-inflammatory cytokines at various levels in pubertal and adult male and female mice, resulted in age and sex differences in cytokine concentrations following immune challenge. Only adult males and females treated with LPS displayed significantly more IL-6 than their saline controls, and pubertal males and females and adult females displayed significantly more IL-10 than their saline controls. All the mice displayed significantly more IL-12 and TNF-α than their saline controls.