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C-X-C Motif Chemokine 9 (CXCL9), previously called MIG, is a 14 kDa protein belonging to the intercrine alpha (chemokine CXC) family. Its induction is enhanced by TNFa in dermal fibroblasts and vein endothelial cells. The synthesis of CXCL9 is specifically induced in macrophages, monocytes, neutrophils, APC, B cells, and eosinophils by IFN? and mediated via the JAK-STAT signaling pathway. The main function of this chemokine is the recruitment of leukocytes to sites of infection and inflammation. Some studies have shown that CXCL9 is active against Gram-negative and Gram-positive bacteria. CXCL9 may play a role as a mediator of T-cell recruitment and activation in some diseases like psoriasis and pulmonary disease. CXCL9 is expressed in allogeneic skin grafts several days before completion of rejection.
AlphaLISA technology allows the detection of molecules of interest in a no-wash, highly sensitive, quantitative assay. In an AlphaLISA assay, a biotinylated anti-analyte antibody binds to the Streptavidin-coated Donor beads while another anti-analyte antibody is conjugated to AlphaLISA Acceptor beads. In the presence of the analyte, the beads come into close proximity. The excitation of the Donor beads causes the release of singlet oxygen molecules that triggers a cascade of energy transfer in the Acceptor beads, resulting in a sharp peak of light emission at 615 nm.
|Assay Target Class||Cytokine|
|Experimental Type||In vitro|
|Product Brand Name||AlphaLISA|
|Shipping Condition||Blue Ice|
|Unit Size||5,000 assay points|
The AlphaLISA® assay is a homogeneous immunoassay alternative to classical ELISA. AlphaLISA assays were originally utilized to detect analytesin cell cultures upernatants or serum/plasma samples.