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生物源
Escherichia coli (O55:B5)
品質等級
形狀
lyophilized powder
純化經由
phenol extraction
技術
cell based assay: suitable
雜質
<3% Protein (Lowry)
顏色
off-white to tan
溶解度
water: soluble
應用
cell analysis
clinical research
life science and biopharma
運輸包裝
ambient
儲存溫度
2-8°C
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相关类别
一般說明
脂多糖 (LPS) 是糖脂，由连接单个或多个脂肪酸的碳水化合物单元组合而成，存在于革兰氏阴性菌细胞壁中。LPS是外膜的重要组成部分，结构由脂质A、葡萄糖胺基磷脂、短核寡糖和O-抗原（远端多糖）组成。
應用
来自大肠杆菌O55:B5的脂多糖已用于：
- 刺激肝细胞和非实质细胞
- 刺激脾脏并研究Malitaf基因在鱼钝头鲷中的表达
- 作为伴刀豆球蛋白A（ConA）和D-半乳糖胺/脂多糖（D-GalN/LPS）暴发性肝炎模型的一部分用于研究天然化合物橙皮素的作用
- 诱导少突胶质细胞毒性，以评估几种化合物的神经保护作用
- 诱导大鼠肌少症，以评估载姜黄素疏水表面改性羟基磷灰石的抗氧化作用
脂多糖（LPS）是革兰氏阴性细菌细胞壁的特征组分。脂多糖及其脂质 A 部分通过 Toll 样受体 4（TLR4）刺激先天免疫系统的细胞，Toll 样受体 4是 Toll 样受体蛋白家族的成员，其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) 建立起保护性渗透屏障，阻止抗生素和胆汁盐进入，从而使革兰氏阴性菌具备天然耐药性。LPS影响细菌致病性，毕竟宿主免疫系统主要面对的是细菌LPS成分。LPS是一种内毒素兼高免疫原性抗原，可以增强免疫系统。LPS 的脂质 A 通过 Toll 样受体 4 (TLR4) 刺激宿主细胞。
其他說明
For optimal reconstitution of LPS products, an intensive vortex is required before use, regardless of the container type. Ensure that the storage solution concentration is at least 1 mg/ml. While borosilicate (silanized) containers are recommended, polypropylene (PP) plastic containers may also be used.
相關產品
产品编号
说明
价格
訊號詞
Danger
危險聲明
危險分類
Acute Tox. 2 Oral
儲存類別代碼
6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
水污染物質分類（WGK）
WGK 3
閃點（°F）
Not applicable
閃點（°C）
Not applicable
個人防護裝備
Eyeshields, Gloves, type N95 (US)
其他客户在看
Identification and Characterization of Lipopolysaccharide Induced TNFa Factor from Blunt Snout Bream, Megalobrama amblycephala
Yina LV
International Journal of Molecular Sciences, 18(2), 233-233 (2017)
Xia Zheng et al.
International journal of medical sciences, 16(8), 1149-1156 (2019-09-17)
Background Sepsis, a leading cause of death in intensive care units, is generally associated with vascular dysfunction. However, its pathophysiological process has not been fully clarified, lacking in-depth knowledge of its pathophysiological process may hinder the improvement of diagnosis and
The protective effect of the natural compound hesperetin against fulminant hepatitis in vivo and in vitro
Xueting Bai
British Journal of Pharmacology, 174 (2017)
K Amor et al.
Infection and immunity, 68(3), 1116-1124 (2000-02-26)
In the lipopolysaccharides of Escherichia coli there are five distinct core oligosaccharide (core OS) structures, designated K-12 and R1 to R4. The objective of this work was to determine the prevalences of these core OS types within the species. Unique
H T L Lai et al.
Poultry science, 90(2), 337-351 (2011-01-21)
Earlier, we reported that pathogen-associated molecular patterns such as lipopolysaccharide (LPS), when administered intratracheally (i.t.), affected primary and secondary specific antibody responses to antigens administered concurrently, either i.t. or systemically, and also affected BW gain (BWG) of layers and broilers.
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