LIGHT, also known as TNFSF14 is a member of the TNF superfamily that produced by multiple immune cells such as activated T cells and immature dendritic cells (DCs) . Mouse LIGHT shares 79% sequence homology with human LIGHT. LIGHT is a 29 kDa type II transmembrane protein, which serves as a ligand for both lymphotoxin β receptor (LTβR) and TNFSF signaling receptors (TNFRSF14/HVEM) . Besides, LIGHT can amplify NF-kB signaling pathway in T cells when presencing anti-CD3 antibody treatment. Additionally, LIGHT is able to stimulate T cell proliferation and IFN expression via interacting with TNFRS13 /HVEM.