| First Author | Kraus AK | Year | 2016 |
| Journal | PLoS One | Volume | 11 |
| Issue | 2 | Pages | e0147951 |
| PubMed ID | 26840537 | Mgi Jnum | J:248886 |
| Mgi Id | MGI:6093245 | Doi | 10.1371/journal.pone.0147951 |
| Citation | Kraus AK, et al. (2016) The Role of T Cell Costimulation via DNAM-1 in Kidney Transplantation. PLoS One 11(2):e0147951 |
| abstractText | DNAX accessory protein-1 (DNAM-1, CD226) is a co-stimulatory and adhesion molecule expressed mainly by natural killer cells and T cells. DNAM-1 and its two ligands CD112 and CD155 are important in graft-versus-host disease, but their role in solid organ transplantation is largely unknown. We investigated the relevance of this pathway in a mouse kidney transplantation model. CD112 and CD155 are constitutively expressed on renal tubular cells and strongly upregulated in acutely rejected renal allografts. In vitro DNAM-1 blockade during allogeneic priming reduced the allospecific T cell response but not the allospecific cytotoxicity against renal tubular epithelial cells. Accordingly, absence of DNAM-1 in recipient mice or absence of CD112 or CD155 in the kidney allograft did not significantly influence renal function and severity of rejection after transplantation, but led to a higher incidence of infarcts in CD112 and CD155 deficient kidney allografts. Thus, DNAM-1 blockade is not effective in preventing transplant rejection. Despite of being highly expressed, CD112 and CD155 do not appear to play a major immunogenic role in kidney transplantation. Considering the high incidence of renal infarcts in CD112 and CD155 deficient grafts, blocking these molecules might be detrimental. |
