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SRP6169

Sigma-Aldrich

IL-1β human

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

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Synonym(s):
Catabolin, Endogenous pyrogen (EP), Leukocyte endogenous mediator (LEM), Lymphocyte-activating factor (LAF), Mononuclear cell factor (MCF)
CAS Number:
UNSPSC Code:
12352202
NACRES:
NA.32

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.

shipped in

dry ice

storage temp.

−70°C

Gene Information

human ... IL1B(3553)

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.

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Information

常规特殊物品

Certificates of Analysis (COA)

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Neutrophil gelatinase-associated lipocalin is up-regulated in human epithelial cells by IL-1 beta, but not by TNF-alpha.
Cowland JB
Journal of Immunology, 171, 6630-6639 (2003)
Proinflammatory cytokines detectable in synovial fluids from patients with temporomandibular disorders.
Takahashi T
Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics, 85, 135-141 (1998)
Virus infection activates IL-1 beta and IL-18 production in human macrophages by a caspase-1-dependent pathway.
Pirhonen J
Journal of Immunology, 162, 7322-7329 (1999)
Differential regulation of monocyte matrix metalloproteinase and TIMP-1 production by TNF-alpha, granulocyte-macrophage CSF, and IL-1 beta through prostaglandin-dependent and -independent mechanisms.
Zhang Y
Journal of Immunology, 161, 3071-3076 (1998)
Xiao Liu et al.
Arthritis & rheumatology (Hoboken, N.J.), 66(9), 2391-2402 (2014-05-20)
To examine the impact of the gp130 cytokine family on murine articular cartilage and to explore a potential regulatory role of suppressor of cytokine signaling 3 (SOCS-3) in murine chondrocytes. In wild-type (WT) mouse chondrocytes, baseline receptor expression levels and

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