A Patient Asks the Healthcare Professional Why Tissue Damage Occurs

Multiple Choice

A patient asks the healthcare professional why tissue damage occurs in acute rejection after organ transplantation. What response by the professional is best?

A) Th1 cells release cytokines that activate infiltrating macrophages, and cytotoxic T cells directly attack the endothelial cells of the transplanted tissue.
B) Circulating immune complexes are deposited in the endothelial cells of transplanted tissue, where the complement cascade lyses tissue.
C) Receptors on natural killer cells recognize antigens on the cell surface of transplanted tissue, which releases lysosomal enzymes that destroy tissue.
D) Antibodies coat the surface of transplanted tissue to which mast cells bind and liberate preformed chemical mediators that destroy tissue.