What causes rejection by the body's immune system after a transplant of an improperly matched organ?
A) non- self proteins in the tissue
B) the presence of foreign MHC proteins on the donor tissue
C) antibodies and cytotoxic T lymphocytes CTLs) responding to foreign tissue
D) all of the above
E) A and C only

Question

Quizplus · Accepted Answer

All of the above options contribute to the rejection of an improperly matched organ transplant. Non-self proteins on the tissue and foreign MHC proteins on the donor tissue can trigger an immune response, leading to the production of antibodies and cytotoxic T lymphocytes that attack the foreign tissue.

What Causes Rejection by the Body's Immune System After a Transplant