ELISA Kit
IL-21 is a 17 kDa immunomodulatory cytokine produced mainly by Natural Killer Cells (NKT), T helper (Th) 17 and T follicular helper (TFH) cells. In TFH cells, IL-21 expression leads to autocrine signaling through the IL-21 receptor (IL-21R) and STAT3, which leads to additional transcriptional activation by Bcl6. As with IFN gamma for Th1 and IL-4 for Th2 cells, IL-21 is critical for TFH cell development and effector function. IL-21 plays a role in T cell-dependent B cell differentiation into plasma cells and memory cells, stimulation of IgG production and induction of apoptotic signaling in naive B cells. In Th17 cells, IL-21 expression and autocrine feedback through STAT3, IRF4 and ROR gamma t lead to upregulation of the IL-23R, thereby preparing Th17 cells for maturation and maintenance by the inflammatory cytokine IL-23. While upregulating IRF4 and ROR gamma t, IL-21 also mediates the downregulation of Foxp3. IL-21 deficient mice are protected from developing colitis upon chemical treatment by their inability to upregulate Th17-associated molecules. In comparison, elevated levels of IL-21 are present in chemically-induced colitis mouse models.
| Marque | Invitrogen |
|---|---|
| Réf. B-LABO | BL-RE-167089 |
| Réf. fabricant | 30087921 |
| Numéro d’adhésion | Q9ES17 |
| Plage de dosage | Lot-specific |
| Sensibilité du dosage | Lot-specific |
| Conjugué | HRP |
| Type de produit | ELISA Kit |
| À utiliser avec (équipement) | Colorimetric Microplate Reader |
| Identification génétique (Entrez) | 60505 |
| Symbole de gène(s) | IL21 |
| Contenus des kits | This Mouse IL-21 ELISA Kit includes Capture Antibody, Detection Antibody, Protein Standard, and HRP-conjugate. The HRP-conjugate is packaged separately. |
| Marqueur ou colorant | HRP |
| Quantité | 10 x 96 Tests |
| État réglementaire | RUO |
| Conditions de stockage | Refer to product documentation for component specific storage temperature. |
| Cible | Mouse IL-21 ELISA Development Kit (ABTS) |
| Heure du test | 1 hr 45 min |
| Durée totale du dosage | 24 hr 30 min |
