When a patient starts to have rejection problems with a transplanted organ,the problems are usually caused by:
A) a B cell-mediated condition.
B) human leukocyte antigens (HALs).
C) self-antigens.
D) severe combined immune deficiency (SCID).

Question

Quizplus · Accepted Answer

Transplanted organs contain cells with human leukocyte antigens (HLAs), which are recognized as foreign by the recipient's immune system. This can trigger an immune response that leads to rejection of the transplant. The presence of non-self antigens leads to cell-mediated rejection as well as antibody-mediated rejection. Rejection problems are not typically caused by self-antigens or severe combined immune deficiency. B cells may play a role in antibody-mediated rejection.

When a Patient Starts to Have Rejection Problems with a Transplanted