TNFSF18
Function
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 (PubMed:23892569). Promotes leukocyte adhesion to endothelial cells (PubMed:23892569). Regulates migration of monocytes from the splenic reservoir to sites of inflammation (By similarity).
Sequence Similarities
Belongs to the tumor necrosis factor family.
Tissue Specificity
Expressed at high levels in the small intestine, ovary, testis, kidney and endothelial cells.
Cellular localization
- Cell membrane
- Single-pass type II membrane protein
Alternative names
AITRL, GITRL, TL6, UNQ149/PRO175, TNFSF18, Tumor necrosis factor ligand superfamily member 18, Activation-inducible TNF-related ligand, Glucocorticoid-induced TNF-related ligand, hGITRL