A novel pseudovirus containing lewis X oligosaccharides with pD-L1 targeting to DCs induces T cells tolerance.

The purpose of this study was to assess the potential of a novel pseudovirus targeting to dendritic cells (DCs) inducing T cells tolerance. To prove it, allogeneic DCs transfected of the novel pseudovirus containing Lewis X oligosaccharides with programmed death-ligand 1 were co-cultured with T cells. After mixed leukocyte reactions were performed, the proliferation, cytokines secretion, and activation marker expression of T cells were analyzed. The results demonstrated that the proliferation, cytokines secretion, and activation marker expression of T cells were suppressed after co-cultured with the pseudovirus transfected DCs. These findings suggested that DCs transfected with pseudovirus could induce T-cells tolerance, which provided a promising therapeutic means to negatively manipulate immune response in organ transplantation.