SRP6169

IL-1β human

recombinant, expressed in HEK 293 cells, ≥95% (SDS-PAGE)

• Synonym(s): Catabolin, Endogenous pyrogen (EP), Leukocyte endogenous mediator (LEM), Lymphocyte-activating factor (LAF), Mononuclear cell factor (MCF)
• CAS Number: 97599-21-8
• NACRES: NA.32

Properties

• biological source: human
• recombinant: expressed in HEK 293 cells
• Assay: ≥95% (SDS-PAGE)
• form: lyophilized
• mol wt: (18 and 25 kDa, monomer, glycosylated)
• packaging: pkg of 10 μg
• technique(s): cell culture | mammalian: suitable
• NCBI accession no.: P01584
• shipped in: dry ice
• storage temp.: −70°C
• Gene Information: human ... IL1B(3553)

Description

General description

Interleukin-1β (IL1B) is produced by activated macrophages. It is synthesized as pro-IL-1β which is changed to active form IL-1β with the help of pro-inflammatory protease caspase-1. IL-1β belongs to the IL-1 gene family. It is a proinflammatory cytokine. The gene is mapped to human chromosome 2q14. In comparison with the Escherichia coli expressed protein, IL-1β is 50% more potent in promoting human CD4+ T cell differentiation into Th17 (T helper) cells. This cytokine is produced in a serum free, chemically defined media.

Application

• IL-1β (IL1B) has been used to check the expression of NGAL (neutrophil gelatinase-associated lipocalin) in epithelial cells after stimulation with proinflammatory cytokines.
• It has been used to check anti-inflammatory activities of N-Acetylglucosamine in human chondrocytes.
• It has been used to create inflammatory endothelium in human coronary artery endothelial cells.

Biochem/physiol Actions

IL-1β (IL1B) stimulates thymocyte proliferation by inducing IL-2 release, B-cell maturation and proliferation and fibroblast growth factor activity. IL-1β proteins are involved in the inflammatory response, being identified as endogenous pyrogens, and are reported to stimulate the release of prostaglandin and collagenase from synovial cells. IL-1β is present in chronic inflamed tissues and also in tissues going for fibrogenesis. It brings neutrophil and macrophage to the site of infection. Mutations in IL-1β gene are linked with renal manifestations and renal sequelae in Henoch-Schönlein purpura. It is also associated with destruction of β-cell in type 1 diabetes.

Physical form

Lyophilized from a PBS solution.

Preparation Note

Centrifuge the vial prior to opening.

Reconstitution

Reconstitute in sterile PBS containing 0.1% endotoxin-free recombinant human serum albumin.

Safety Information

• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 3
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable