Which among the following is responsible for graft rejection in our body ?

Cell mediated immune response. Humoral immune response. Cytokine barriers. None of these .

Cell mediated immune response.

Tissue matching, blood group matching are essential before undertaking any graft/transplant and even after this the patient has to take immuno–suppresants all his/her life. The body is able to differentiate ‘self’ and ‘nonself’ and the cell-mediated immune response is responsible for the graft rejection.