A protein produced by our body in response to an antigen. There are 5 classes of antibodies (IgG, IgM, IgE, IgA, IgD). The antibody binds to and neutralises the antigen.
Antigens are usually foreign substances which enter the body and trigger the immune system to produce antibodies in order to fight off the potential infection. Antigens can be toxins, foreign blood cells, bacteria or the cells of transplanted organs.
Human Leukocyte Antigen; HLA Oligotyping; HLA Sequence-based Typing
Also Known As:
Tissue Typing; HLA Typing; Histocompatibility Testing; HLA Crossmatching; HLA Antibody Testing/Screening/Identification
Why Get Tested?
To identify which human leukocyte antigen (HLA) genes and antigens a person has inherited, primarily to match up donors and recipients of organ and bone marrow transplants and to detect antibodies to HLA antigens that would cause transplants to be unsuccessful