> Information Center > Technical FAQs > Antibody Technology Column > What are HLA antibodies?
HLA stands for Human Leukocyte Antigen. HLA antigens are proteins found on most cells in your body. These antigens are inherited as a unique set from your parents. They allow for the regulation of your immune system. What is an antibody? Antibodies are proteins that are found in your plasma (the liquid portion of your blood). Your cells make antibodies in response to antigens on cells that are different from your own and foreign targets such as viruses and bacteria. Antibodies play a key role in the immune system. HLA antibodies are commonly formed in women during pregnancy, after receiving a blood transfusion or organ transplant. HLA antibodies pose absolutely no risk to you. However, HLA antibodies in donated plasma or plasma blood products may be dangerous to transfusion recipients.
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