Profile: Genprice Inc US is a distributor of research reagents and diagnostics units. Our products include antibodies, primers, recombinant proteins, culture media, and cell lines. ur OX40L (tumor necrosis factor ligand superfamily member 4; or CD252) is the endogenous ligand of this OX40 receptor. OX40 is localized to and propagates the immune response by boosting survival and division of T-cells, thus increasing the inhabitants of memory CD4 and CD8 T cells generated in response. The OX40/OX40L suppress the action of cells and can modulate production. OX40/OX40L is a significant mediator of the reaction.