Human IL-33 ELISA Kit EZ-Set™ (DIY Antibody Pairs)

Description
Capture Antibody
Detection Antibody
Avidin-Biotin-Peroxidase Complex (ABC)
Lyophilized Standard|

Interleukin 33 (IL-33) is a cytokine belonging to the IL-1 superfamily. The IL33 gene maps to chromosome 9p24.1 by using of genomic database analysis. Recombinant mature human IL33 bound to ST2. The induction of type 2 cytokines by IL-33 in vivo is believed to induce the severe pathological changes observed in mucosal organs following administration of IL-33. IL33, an alarmin released from necrotic cells, is necessary for potent CD8 + T cell (CTL) responses to replicating, prototypic RNA, and DNA viruses in mice. IL33 prevented the downregulation of CXCR2 and inhibition of chemotaxis induced by activation of TLR4, and found that IL33 reverses the TLR4-induced reduction of CXCR2 expression via the inhibition of expression of GRK2.

1. Microplate reader in standard size.
2. Automated plate washer.
3. Incubator.
4. Adjustable pipettes and pipette tips. Multichannel pipettes are recommended in the condition of large amount of samples in the detection.
5. Clean tubes and Eppendorf tubes.
6. 96 well microplate (Cat# AR1100)
7. Plate Sealers.
8. Capture Antibody Diluent: PBS.
9. Reagent Diluent: 1% BSA in PBS, pH 7.2-7.4, 0.2 µm filtered.
10. Substrate Solution: Tetramethylbenzidine (Cat# AR1104)
11. Stop Solution: 2 N H2SO4 (Cat# AR1105)
12. Wash Buffer (PBS and PBS-T). Recipes:
PBS: 8g NaCl, 0.2g KCl, 1.15g Na2HPO4, 0.2g KH2PO4, adjust the total volume to 1 L with distilled water, pH 7.2-7.4, 0.2 µm filtered.
PBS-T: 0.1% Tween® 20 in PBS, pH 7.2-7.4.
*Item 6 – 12 are included in the EZ Set Accessory Kit (EZA001)

Cytokine that binds to and signals through the IL1RL1/ST2 receptor which in turn activates NF-kappa-B and MAPK signaling pathways in target cells. Involved in the maturation of Th2 cells inducing the secretion of T-helper type 2-associated cytokines. Also involved in activation of mast cells, basophils, eosinophils and natural killer cells. Acts as a chemoattractant for Th2 cells, and may function as an "alarmin", that amplifies immune responses during tissue injury. In quiescent endothelia the uncleaved form is constitutively and abundantly expressed, and acts as a chromatin-associated nuclear factor with transcriptional repressor properties, it may sequester nuclear NF-kappaB/RELA, lowering expression of its targets. This form is rapidely lost upon angiogenic or proinflammatory activation.

Human IL-33 ELISA Kit EZ-Set™ (DIY Antibody Pairs) (antibody pairs and standards for assay development). Quantitate Human IL33 in cell culture supernatants, serum, plasma (heparin, EDTA) and cell lysates.