Immunocompetent - capable of developing an immune response. Immunodeficiency - the lack of an adequate or normal immune response. Immunologic Disease - a disease due to a dysfunction of the immune system. These are the autoimmune, allergic, and immunodeficiency diseases. Immunosuppression - therapy, usually pharmaceutical, to reduce the magnitude of the immune response.
Immunosuppression is the treatment for graft rejection and autoimmune disease.
Leukocyte - a white cell of the blood. Organism - an individual, living thing. Protein - a type of organic compound that is one of the major components of cells and tissues. Transplantation - transfer of cells, tissues, or organs from on area of the body to another or from one organism to another. Nearly all organ and bone marrow transplants are allografts.