title: LIGHT-HVEM signaling and the regulation of T cell-mediated immunity.
abstract: LIGHT is a tumor necrosis factor (TNF) superfamily ligand that regulates T cell immune responses by signaling through the herpes virus entry mediator (HVEM) and the lymphotoxin beta receptor (LTbetaR). This review will present a summary of recent advances made regarding the immunobiology of the LIGHT-HVEM and LTbetaR systems. LIGHT has emerged as a potent initiator of T cell co-stimulation signals effecting CTL-mediated tumor rejection, allograft rejection and graft versus host disease. Constitutive expression of LIGHT leads to tissue destruction and autoimmune-like disease syndromes. In contrast to LTalphabeta, LIGHT plays a minimal role in lymphoid tissue development, yet some evidence indicates a role in negative selection in the thymus. These results provide an encouraging profile for the LIGHT-HVEM-LTbetaR axis as a potential target for controlling cellular immune reactions.
authors.affiliation: Division of Molecular Immunology, La Jolla Institute for Allergy and Immunology, 10355 Science Center Drive, San Diego, CA, USA. steven@liai.org
authors.forename: Steve W
authors.initials: SW
authors.lastname: Granger
authors.forename: Sandra
authors.initials: S
authors.lastname: Rickert
mesh_terms: D000818:Animals; D003713:Dendritic Cells / Q000276:immunology; D015870:Gene Expression; D006084:Graft Rejection / Q000276:immunology; D006086:Graft vs Host Disease / Q000517:prevention & control; D006801:Humans; D007111:Immunity, Cellular; D008565:Membrane Proteins / Q000172:deficiency / Q000235:genetics / Q000276:immunology*; D051379:Mice; D018345:Mice, Knockout; D018448:Models, Immunological; D009369:Neoplasms / Q000276:immunology; D018124:Receptors, Tumor Necrosis Factor / Q000235:genetics / Q000276:immunology*; D053240:Receptors, Tumor Necrosis Factor, Member 14; D011991:Receptors, Virus / Q000235:genetics / Q000276:immunology*; D015398:Signal Transduction; D013601:T-Lymphocytes / Q000276:immunology*; D053326:Tumor Necrosis Factor Ligand Superfamily Member 14; D014409:Tumor Necrosis Factor-alpha / Q000172:deficiency / Q000235:genetics / Q000276:immunology*
chemical_list: D008565:Membrane Proteins; D018124:Receptors, Tumor Necrosis Factor; D053240:Receptors, Tumor Necrosis Factor, Member 14; D011991:Receptors, Virus; C506028:TNFRSF14 protein, human; C505914:TNFSF14 protein, human; C506029:Tnfrsf14 protein, mouse; C505915:Tnfsf14 protein, mouse; D053326:Tumor Necrosis Factor Ligand Superfamily Member 14; D014409:Tumor Necrosis Factor-alpha