Described herein are compositions and methods for treating or preventing an injury associated with transplant. Specifically, the disclosure provides a composition for treating or preventing an injury associated with transplantation, comprising (a) a targeted inhibitor molecule wherein the targeted inhibitor molecule comprises a targeting portion and an inhibitor portion, wherein the molecule inhibits complement pathways, and (b) a sub-therapeutic dose of an immunosuppressant agent. Further provided are methods of treating or preventing an injury associated with transplantation with activated complement by using the compositions.La présente invention concerne des compositions et des méthodes pour traiter ou prévenir une lésion associée à une greffe.