Fully biologically active when compared to standard. The biological activity as determined by stimulation of IL-8 production using human PBMC is in a concentration range of 0.1-10 ng/ml.
Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
Shelf Life
The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself.
Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.
Cytokine that binds to TNFRSF18/AITR/GITR. Regulates T-cell responses. Can function as costimulator and lower the threshold for T-cell activation and T-cell proliferation. Important for interactions between activated T-lymphocytes and endothelial cells. Mediates activation of NF-kappa-B. Triggers increased phosphorylation of STAT1 and up-regulates expression of VCAM1 and ICAM1. Promotes leukocyte adhesion to endothelial cells. Regulates migration of monocytes from the splenic reservoir to sites of inflammation.
Gene References into Functions
GITRL levels are significantly elevated in rheumatoid arthritis serum and synovial fluid and are positively correlated with autoantibody production in rheumatoid arthritis, suggesting a role of GITRL in the development of rheumatoid arthritis.PMID:27098050
GITRL modulates the activities of p38 MAPK and STAT3 to promote Th17 cell differentiation in autoimmune arthritis.PMID:26657118
An increase in GITRL may impair the balance of Th17/Treg, and contribute to the pathopoiesis of Hashimoto's thyroiditis.PMID:25429429
Serum GITRL levels were higher in SLE patients.PMID:23251213
Glucocorticoid-induced TNF-related ligand (GITRL) confers pseudoexpression to tumor cells by platelets, which results in GITRL expression by megakaryocytes and their platelet progeny.PMID:22649191
observation suggests a link between cytokine-regulated keratinocyte GITRL expression and its role in inflammatory responses in ADPMID:22417213
GITRL upregulation induced by IFN-beta on dendritic cells downregulates CTLA-4 on regulatory T (Treg) cells, facilitating proliferation of anergic Treg cells in multiple sclerosis treatment of multiple sclerosis patients.PMID:22112394
GITRL expression on Kupffer cells may mediate acute rejection in liver transplantationPMID:21693309
The incorporation of an isoleucine zipper motif could markedly improve the costimulation of hsGITRL.PMID:20228835
Upregulation by proinflammatory cytokines suggests GITRL may play important role in ocular immunity. High level of constitutive GITRL expression on photoreceptor inner segments suggests photoreceptors participate in regulation of ocular inflammation.PMID:15326137
Regulates ossteoclasst genersation and substantiate the major role played by the endothelium in bone physiology.PMID:16179414
Using a GITRL-transfected cell line, we demonstrate that GITRL promotes NK cell cytotoxicity and IFN-gamma production.PMID:16397134
GITRL could be a potential candidate for regulation of the ocular immune privilege and the balance between immune privilege and inflammationPMID:16874737
Constitutive expression of GITRL by tumor cells diminishes natural killer cell antitumor immunity.PMID:17360848
although huGITRL is not capable of alleviating Treg suppression of responder T cells, huGITRL overexpression on monocyte-derived DC enhances their capacity to induce antigen-specific T cell responsesPMID:17449724
These observations raise the possibility that the GITRL-mediated inflammatory activation of macrophages is involved in the pathogenesis of inflammatory diseases.PMID:17602748
Levels of AITRL were significantly increased in serum of breast cancer patientsPMID:17914571
hGITRL ectodomain displays considerable self-association/dissociation in solution with a dynamic equilibrium between trimeric and monomeric forms over the range of protein concentrations studied.PMID:18040044
identify multiple oligomeric species of hGITRL that possess distinct kinetics of ERK activation.PMID:18378892
The strong correlation of tumor incidence and elevated soluble GITRL levels indicates that soluble GITRL is released from cancers in vivo, leading to impaired NK cell immunosurveillance of tumorsPMID:18689545
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Subcellular Location
Cell membrane; Single-pass type II membrane protein.
Protein Families
Tumor necrosis factor family
Tissue Specificity
Expressed at high levels in the small intestine, ovary, testis, kidney and endothelial cells.