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Key Documents

L6143

Sigma-Aldrich

Lipopolysaccharides from Salmonella enterica serotype typhimurium

suitable for cell culture, BioXtra, γ-irradiated

Synonym(s):

LPS

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About This Item

MDL number:
UNSPSC Code:
12352201
NACRES:
NA.75

biological source

Salmonella enterica (serotype typhimurium)

Quality Level

sterility

γ-irradiated

product line

BioXtra

form

lyophilized powder

purified by

gel-filtration chromatography

technique(s)

cell culture | mammalian: suitable

impurities

<1% Protein (Lowry)

storage temp.

2-8°C

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Application

Lipopolysaccharides from Salmonella enterica serotype typhimurium has been used:
  • in mice to elicit the secretion of pro-inflammatory cytokines
  • to induce cytokine production in monocytes
  • to elicit the activation of NF-κB pathway in mouse dendritic cells.
  • to induce inflammatory response in human colon adenocarcinoma Caco-2 cells
  • for stimulation of the catfish peripheral blood leukocytes (PBLs) to study estrogen receptor mRNA expression
Lipopolysaccharides (LPSs) are characteristic components of the cell wall of Gram-negative bacteria. LPS and its lipid A moiety stimulate cells of the innate immune system by the Toll-like receptor 4 (TLR4), a member of the Toll-like receptor protein family, which recognizes common pathogen-associated molecular-patterns (PAMPs).

Biochem/physiol Actions

LPS is a major constituent of the cell wall of most gram negative bacteria. It is a highly immunogenic antigen with the ability to enhance immune responses to soluble antigens. LPS also acts as a specific mitogen for bone marrow derived B lymphocytes from mice, rabbits, chickens, cows, hamsters, and humans.

Reconstitution

Lipopolysaccharides are supplied as lyophilized, γ-irradiated powders. To reconstitute, add 1 ml sterile balanced salt solution or tissue culture medium to the vial (1 mg) and gently swirl until the powder dissolves. Reconstituted product may be further diluted to desired working concentrations using sterile balanced salt solution or tissue culture medium.

Other Notes

To gain a comprehensive understanding of our extensive range of Lipopolysaccharides for your research, we encourage you to visit our Carbohydrates Category page.

pictograms

Exclamation mark

signalword

Warning

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)


Certificates of Analysis (COA)

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Guangwei Xu et al.
Journal of enzyme inhibition and medicinal chemistry, 33(1), 1089-1094 (2018-06-23)
Indoleamine 2,3-dioxygenase 1 (IDO1) activity links to immune escape of cancers. Inhibition of IDO1 provides a new approach for cancer treatment. Most clinical IDO1 drugs show marginal efficacy as single agents. On basis of molecular docking and pharmacophore modelling, a
Ju Huang et al.
Proceedings of the National Academy of Sciences of the United States of America, 106(15), 6226-6231 (2009-04-03)
Autophagy plays an important role in immunity to microbial pathogens. The autophagy system can target bacteria in phagosomes, promoting phagosome maturation and preventing pathogen escape into the cytosol. Recently, Toll-like receptor (TLR) signaling from phagosomes was found to initiate their
Luke R Iwanowicz et al.
Fish & shellfish immunology, 40(1), 109-119 (2014-06-29)
Estrogens are recognized as modulators of immune responses in mammals and teleosts. While it is known that the effects of estrogens are mediated via leukocyte-specific estrogen receptors (ERs) in humans and mice, leucocyte-specific estrogen receptor expression and the effects of
Chun-Yan Yeung et al.
Gastroenterology research and practice, 2013, 973209-973209 (2013-07-11)
Background. Lactobacillus shows beneficial anti-inflammatory effects on Salmonella infection. The maintenance of the tight junction (TJ) integrity plays an importance role in avoiding bacterial invasion. Whether Lactobacillus could be used to regulate the TJ protein expression and distribution in inflamed
Marie-Elise Bonnet et al.
Pharmaceutical research, 25(12), 2972-2982 (2008-08-19)
The success of nucleic acid therapies depends upon delivery vehicle's ability to selectively and efficiently deliver therapeutic nucleic acids to target organ with minimal toxicity. The cationic polymer polyethylenimine (PEI) has been widely used for nucleic acid delivery due to

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