- Other Names
- Monocyte chemotactic protein2, MCP-2, Small inducible cytokine subfamily A, member 8, SCYA8
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CCL8, also known as MCP-2, is a beta chemokine initially isolated from human MG-63 osteosarcoma cells that are stimulated with IL-1β. CCL8 (MCP-2) has a structure and function that is similar with both MCP-1 and MCP-3. It is often co-induced with those chemokines in mononuclear cells. IFNγ is a strong inducer of CCL8 (MCP-2) in monocytes and fibroblasts. CCL8 (MCP-2) in monocytes and fibroblasts and can be processed and secreted as a truncated chemokine CCL8 (6-75). This isoform does not chemo attract monocytes, but it binds to the CCR2 receptor and induces its internalization. As a result, CCL8 (MCP-2) inhibits MCP-1 (CCL2) and MCP-2 (CCL8) ERK signaling and antagonizes the chemotactic activity of several CCR2 ligands (MCP-1/CCL2, MCP-2/CCL8, MCP-3/CCL7). CCL8 (MCP-2) is highly expressed in the skin, and it serves as an agonist for the chemokine receptor CCR8, but not for CCR2. Therefore, it has been speculated that the CCL8-CCR8 interaction is a crucial regulator of the Th2 homing, which drives IL-5 mediated chronic allergic inflammation. In addition, CCL8 (MCP-2) binds the CCR5 receptor with a high affinity and inhibits the replication of human immunodeficiency virus type 1. CCL8 (MCP-2) is highly expressed in different human diseases, and it is a potential biomarker for the diagnosis of graft-versus-host diseases and tuberculosis.Product Details
- Human CCL8, amino acids (Gln24-Pro99) (Accession# NM_005623.2), was expressed in E. coli.
- Molecular Mass
- The 76 amino acid recombinant protein has a predicted molecular mass of approximately 8.9 kD. The protein migrates at approximately 11 kD in DTT-reducing conditions and at approximately 12 kD in non-reducing conditions by SDS-PAGE. The N-terminal amino acid is Gln.
- >98%, as determined by Coomassie stained SDS-PAGE.
- Lyophilized in sterile-filtered PBS, pH 7.2, containing 1% BSA, 0.09% sodium azide, and protease inhibitors.
- Storage & Handling
- Immediately upon receipt, store unopened vials between 2°C and 8°C and use within 12 months from date of receipt. Prior to use, reconstitute the lyophilized powder with 0.2 ml of PBS containing a carrier protein (e.g., 1% BSA, protease free), pH 7.4. Re-cap vial, vortex. Allow the reconstituted standard to sit at room temperature for 15 minutes, vortex again to mix completely. The reconstituted standard stock solution can be aliquoted into polypropylene vials and stored at -70°C for up to one month. Do not re-use diluted standards. Use a manual defrost freezer and avoid repeated freeze thaw cycles.
ELISA - Quality tested
- Recommended Usage
Each lot of this antibody is quality control tested by ELISA assay. For use as an ELISA standard, a standard curve comprised of doubling dilutions from 250 pg/ml to 3.9 pg/ml is suggested. It is recommended that the reagent be titrated for optimal performance for each application.
- Application Notes
This CCL8 (MCP-2) protein is useful as a standard for a human CCL8 (MCP-2) sandwich ELISA, using purified anti-human CCL8 (MCP-2) antibody (clone L3715B6) for capture and biotinylated anti-human CCL8 (MCP-2) antibody (clone Poly5210) as detection.
Fibroblasts, endothelial cells, monocytes, and macrophages.
- CCL8 (MCP-2) chemo attracts monocytes, T cells, natural killer (NK) cells, mast cells, eosinophils, and basophils. CCL8 (MCP-2) is induced by IL-1β, IFNβ, IFNγ, dsRNA, virus, ConA, and anti-CD2. The induction of CCL8 (MCP-2) by IFNγ synergizes with the TLR ligands peptidoglycan (TLR2), dsRNA (TLR3), and LPS (TLR4).
- Monocytes, T cells, natural killer (NK) cells, mast cells, eosinophils, and basophils.
- CCR1 (CD191), CCR2 (CD192), CCR3 (CD193), and CCR5 (CD195).
- Biology Area
- Cell Biology, Neuroinflammation, Neuroscience
- Molecular Family
- Antigen References
1. Van Damme J, et al. 1992. J. Exp. Med. 176:59.
2. Proost P, et al. 1998. J. Immunol. 160:4034.
3. Dean RA, et al. 2008. Blood 112:3455.
4. Hori T, et al. 2008. Blood 111:4403.
5. Rom S, et al. 2010. FASEB J. 24:2292.
6. Struyf S, et al. 2009. Eur. J. Immunol. 39:843.
7. Islam SA, et al. 2011. Nat. Immunol. 12:167.
- Gene ID
- 6355 View all products for this Gene ID
- View information about CCL8 on UniProt.org