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- Title
Inhibition of natural killer cells results in acceptance of cardiac allografts in CD28<sup>-/-</sup> mice.
- Authors
Maier, Stefan; Tertilt, Christine; Chambron, Nicole; Gerauer, Klaus; Hüser, Norbert; Heidecke, Claus-Dieter; Pfeffer, Klaus
- Abstract
Successful transplantation of allogeneic organs is an important objective in modern medicine. However, sophisticated immune defense mechanisms, primarily evolved to combat infections, often work against medical transplantation. To investigate the roles of natural and adaptive immune responses in transplant rejection, we functionally inactivated key effector systems of the innate (NK cells) and the adaptive immune system (CD28-mediated costimulation of T cells) in mice. Neither of these interventions alone led to acceptance of allogeneic vascularized cardiac grafts. In contrast, inhibition of NK-receptor?bearing cells combined with CD28-costimulation blockade established long-term graft acceptance. These results indicate a concerted interplay between innate and adaptive immune surveillance for graft rejection. Thus we suggest that inactivation of NK-receptor?bearing cells could be a new strategy for successful survival of solid-organ transplants.
- Publication
Nature Medicine, 2001, Vol 7, Issue 5, p557
- ISSN
1078-8956
- Publication type
Academic Journal
- DOI
10.1038/87880