Rejection of an Organ Transplant Can Occur Because The

Question

Rejection of an organ transplant can occur because the
A) patient has received a vaccination against organ transplants.
B) Rh- mother has produced antibodies against the Rh antigen.
C) antigens on the transplanted organ cells' surface do not match those on the recipients' cells.
D) patient has been given immunosuppressive drugs.
E) HLA haplotype for the transplanted organ matches that of the recipient.

Accepted Answer

Rejection of an organ transplant can occur when the antigens on the surface of the transplanted organ cells do not match those on the recipient's cells, which leads to an immune response against the transplanted organ. This is known as graft rejection and is a major obstacle in successful organ transplantation. Vaccinations against organ transplants or the HLA haplotype matching the transplant would not necessarily cause rejection, while immunosuppressive drugs are given to prevent rejection. The Rh factor is not related to organ transplantation.