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Lipopolysaccharides

Catalog No. T11855 CAS T11855

Synonyms: LPS

Lipopolysaccharides (LPS) is a natural product, an endotoxin derived from the outer leaflet of the outer membrane of Gram-negative bacteria. Lipopolysaccharides are highly immunogenic antigens that enhance the immune response and can be used in inflammatory modeling.

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Lipopolysaccharides, CAS T11855

Pack Size	Availability	Price/USD
1 mg	In stock	$ 45.00
5 mg	In stock	$ 107.00
10 mg	In stock	$ 178.00
25 mg	In stock	$ 397.00
50 mg	In stock	$ 672.00

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Biological Description

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Description	Lipopolysaccharides (LPS) is a natural product, an endotoxin derived from the outer leaflet of the outer membrane of Gram-negative bacteria. Lipopolysaccharides are highly immunogenic antigens that enhance the immune response and can be used in inflammatory modeling.
In vitro	METHODS: Human lung mucoepidermoid carcinoma cells H292 and monocytes THP-1 were treated with Lipopolysaccharides (1-20 µg/mL) for 6-48 h. Cytotoxicity was detected by MTT. RESULTS: No significant changes in the viability of H292 cells treated with 1 and 2.5 µg/mL Lipopolysaccharides and THP-1 cells treated with 1 and 2 µg/mL Lipopolysaccharides were observed. Lipopolysaccharides at higher concentrations (5-20 µg/mL) were significantly cytotoxic to both H292 and THP-1 cells. [1] METHODS: Human induced pluripotent stem cell-derived cardiomyocytes hiPSC-CMs were treated with Lipopolysaccharides (0.1-100 µg/mL) for 6-48 h. Inflammatory cytokine expression was detected by qRT-PCR. RESULTS: The mRNA expression level of IL-1β was increased at 6 h of Lipopolysaccharides treatment, IL-10 was increased only at 48 h, and TNF-α and IL-6 were increased at both 6 and 48 h. [2] METHODS: Neutrophils were treated with Lipopolysaccharides (10 mg/ml) for 4 h. The expression levels of target proteins were measured by Western Blot. RESULTS: The expression of H3-cit and TLR4 increased after treatment with Lipopolysaccharides, which induced the formation of neutrophil extracellular traps (NETs) in neutrophils. [3]
In vivo	METHODS: To construct a mouse model of sepsis, Lipopolysaccharides (25 mg/kg) were administered to C57/BL mice by a single intraperitoneal injection. RESULTS: Lipopolysaccharides induced significant up-regulation of inflammatory factors TNF-α and IL-1β. Lipopolysaccharides induced sepsis in a mouse model. [4] METHODS: To investigate the effects of Lipopolysaccharides on cognitive deficits and neuroinflammation, Lipopolysaccharides (500-750 μg/kg in saline) were injected intraperitoneally into C57BL/6J mice once daily for seven days. RESULTS: Lipopolysaccharides treatment resulted in disease behavior and cognitive deficits in mice, and these effects were accompanied by microglia activation and neuronal cell loss in the hippocampus. Lipopolysaccharides treatment decreased serum and brain homogenate levels of IL-4 and IL-10, and increased levels of TNF-α, IL-1β, PGE2, and NO levels were increased. [5]

Synonyms	LPS
Molecular Weight	4899.92
Formula	C205H366N3O117P5
CAS No.	T11855

Storage

Powder: -20°C for 3 years | In solvent: -80°C for 1 year

Solubility Information

H2O: 5 mg/mL (Need ultrasonic)

References and Literature

1. Liu X, et al. LPS‑induced proinflammatory cytokine expression in human airway epithelial cells and macrophages via NF‑κB, STAT3 or AP‑1 activation. Mol Med Rep. 2018 Apr;17(4):5484-5491. 2. Yücel G, et al. Lipopolysaccharides induced inflammatory responses and electrophysiological dysfunctions in human-induced pluripotent stem cell derived cardiomyocytes. Sci Rep. 2017 Jun 7;7(1):2935. 3. Chen J, et al. Aβ1-40 Oligomers Trigger Neutrophil Extracellular Trap Formation through TLR4- and NADPH Oxidase-Dependent Pathways in Age-Related Macular Degeneration. Oxid Med Cell Longev. 2022 Jun 18;2022:6489923. 4. Wang Z, et al. BmKK2, a thermostable Kv1.3 blocker from Buthus martensii Karsch (BmK) scorpion, inhibits the activation of macrophages via Kv1.3-NF-κB- NLRP3 axis. J Ethnopharmacol. 2023 Oct 5;314:116624. 5. Zhao J, et al. Neuroinflammation induced by lipopolysaccharide causes cognitive impairment in mice. Sci Rep. 2019 Apr 8;9(1):5790.

Citations

1. Wang Y, Luo W, Wang X, et al. MAMDC2, a gene highly expressed in microglia in experimental models of Alzheimers Disease, positively regulates the innate antiviral response during neurotropic virus infection. Journal of Infection. 2022, 84(2): 187-204 2. Chen J, Zhao L, Ding X, et al. Aβ1–40 Oligomers Trigger Neutrophil Extracellular Trap Formation through TLR4- and NADPH Oxidase-Dependent Pathways in Age-Related Macular Degeneration. Oxidative Medicine and Cellular Longevity. 2022 3. Gu X, Weng R, Hou J, et al. Endothelial miR-199a-3p regulating cell adhesion molecules by targeting mTOR signaling during inflammation. European Journal of Pharmacology. 2022: 174984 4. Zhang Z, Yuan Q, Hu X, et al. Rifaximin protects SH‐SY5Y neuronal cells from iron overload‐induced cytotoxicity via inhibiting STAT3/NF‐κB signaling. Cell Biology International.. 5. Wang Z, Sang M, Zhang Y, et al.BmKK2, a thermostable Kv1. 3 blocker from Buthus martensii Karsch (BmK) scorpion, inhibits the activation of macrophages via Kv1. 3-NF-κB-NLPR3 axis.Journal of Ethnopharmacology.2023: 116624. 6. Zhou Y, Zhou L, Jin W, et al.Chronic Allergen Exposure Contributes to Steroid Resistance via Increased Phosphorylation of Glucocorticoid Receptors S226 and p38 MAPK in a Mouse Model of Asthma.Iranian Journal of Allergy, Asthma and Immunology.2023: 1-10. 7. Zheng X, Zhang C, Li L, et al.Improvement of astrocytic gap junction involves the anti-depressive effect of celecoxib through inhibition of NF-κB.Brain Research Bulletin.2024: 110871.

Related compound libraries

This product is contained In the following compound libraries：

NO PAINS Compound Library Immunology/Inflammation Compound Library Natural Product Library for HTS Anti-Infection Compound Library

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Keywords

Lipopolysaccharides T11855 Others LPS inhibitor inhibit

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