L4130
脂多糖 来源于大肠杆菌 0111:B4
purified by trichloroacetic acid extraction
别名:
LPS
生物来源
Escherichia coli (O111:B4)
质量水平
表单
lyophilized powder
纯化方式
trichloroacetic acid extraction
杂质
1-10% Protein (Lowry)
颜色
white to light yellow
溶解性
water: soluble
运输
ambient
储存温度
2-8°C
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相关类别
一般描述
本品是从大肠杆菌血清型O111：B4中提取的TCA。来源菌株由私人提供。该LPS血清型已被用于刺激B细胞并诱导人肝细胞的NOS。
应用
脂多糖（LPS）是革兰氏阴性菌细胞壁的特征组分。LPS及其脂质A部分可通过能够识别常见的病原体相关分子模式（PAMP）的Toll样受体蛋白家族成员Toll样受体4（TLR4）刺激先天性免疫系统细胞。
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，可观察到浑浊的溶液。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。
警示用语：
Danger
危险声明
危险分类
Acute Tox. 2 Oral
储存分类代码
6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
WGK
WGK 3
闪点(°F)
Not applicable
闪点(°C)
Not applicable
历史批次信息供参考:
分析证书(COA)
Lot/Batch Number
Lijia Chang et al.
The international journal of neuropsychopharmacology, 21(10), 932-937 (2018-06-13)
Although previous reports suggest sex-specific differences in the antidepressant actions of (R,S)-ketamine, these differences in the antidepressant actions of (R)-ketamine, which is more potent than (S)-ketamine, are unknown. Saline or (R)-ketamine was administered 23 hours post lipopolysaccharide administration to adult
Marie Hilderman et al.
Clinical kidney journal, 8(5), 599-605 (2015-09-29)
The cholinergic anti-inflammatory pathway (CAP) modulates inflammatory responses through the vagus nerve and the α-7-nicotinic acetylcholine receptor (α7nAChR) on macrophages and immune cells. Sympathetic/parasympathetic imbalance and chronic inflammation are both linked to poor outcome in dialysis patients. The aim of
Jun-Yan Liu et al.
Biochemical pharmacology, 79(6), 880-887 (2009-11-10)
Inflammation is a multi-staged process whose expansive phase is thought to be driven by acutely released arachidonic acid (AA) and its metabolites. Inhibition of cyclooxygenase (COX), lipoxygenase (LOX), or soluble epoxide hydrolase (sEH) is known to be anti-inflammatory. Inhibition of
A Bruchfeld et al.
Journal of internal medicine, 268(1), 94-101 (2010-03-27)
The central nervous system regulates innate immunity in part via the cholinergic anti-inflammatory pathway, a neural circuit that transmits signals in the vagus nerve that suppress pro-inflammatory cytokine production by an alpha-7 nicotinic acetylcholine receptors (alpha7nAChR) dependent mechanism. Vagus nerve
Wei Yao et al.
European journal of pharmacology, 793, 21-27 (2016-11-07)
The Nuclear factor (erythroid 2-derived)-like 2 (Nrf2) plays a key role in inflammation which is implicated in the pathophysiology of depression. The Nrf2 activators have antidepressant effects in animal models of depression. The present study was undertaken to examine whether
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