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|Construction||A DNA sequence encoding the IL-1β（GenBank: AAA72849.1）was expressed with a His-tag at the C-terminus|
|Expression Host||HEK293 cells|
|QC Testing Purity||> 90 % as determined by SDS-PAGE|
|Activity||Determined by the dose-dependent stimulation of the proliferation of D10 cells. The expected ED50 for this effect is ≤ 0.1 ng/ml|
|Endotoxin||< 0.1 EU per 1 μg of the protein by the LAL method|
|Molecular Mass||The recombinant human IL-1β protein consists of 159 amino acids and predicts a molecular mass of 18.2 kD|
|Formulation||Lyophilized from sterile PBS, pH 7.4. Normally 6 % mannitol are added as protectants before lyophilization|
|Stability & Storage||24 months at 2℃ to 8℃ in lyophilized state.
6 months at -20℃ under sterile conditions after reconstitution.
12 months at -80℃ under sterile conditions after reconstitution.
Recommend to aliquot the protein into smaller quantities after reconstituting with water for injection, normal saline or PBS, and keep the diluted concentration above 100μg/mL.
Avoid repeated freeze-thaw cycles.
IL-1 βis a pro-inflammatory cytokine produced in various cells, including monocytes, tissue macrophages, keratinocytes, and other epithelial cells. IL-1α and IL-1 β bind to the same receptor and have similar biological characteristics. These cytokines have a wide range of activities, including inducing IL-2 release to promote thymocyte proliferation, B cell maturation and proliferation, fibroblast growth factor like activity, and synovial cells releasing prostaglandins and collagenase. However, IL-1 β is a secreted cytokine, while IL-1α is mainly a cell related cytokine.
A mesenchymal stem cell line transplantation improves neurological function and angiogenesis in intraventricular amyloid β-infused rats.Haque A, Sheikh A, Mamun AA, Yano S, Hashimoto M, Shido O, Nagai A.Curr Alzheimer Res. 2018 Sep 11. doi: 10.2174/1567205015666180911145159.
Luteolin protects microglia against rotenone-induced toxicity in a hormetic manner through targeting oxidative stress response, genes associated with Parkinson's disease and inflammatory pathways.Elmazoglu Z, Yar Saglam AS, Sonmez C, Karasu C.Drug Chem Toxicol. 2018 Sep 12:1-8. doi: 10.1080/01480545.2018.1504961.
Podocytes contribute, and respond, to the inflammatory environment in lupus nephritis.Wright RD, Beresford MW.Am J Physiol Renal Physiol. 2018 Sep 12. doi: 10.1152/ajprenal.00512.2017.
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