HLA

The initialism HLA can stand for:BiochemistryHuman leukocyte antigen, a key part of the human immune system, or the paternity test based upon it
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HLA human leukocyte antigens. HLA abbr. human leukocyte antigen HLA A group of protein molecules located on bone marrow cells that can provoke an [more]HLA - Community and Resources

The HLA complex is the major human histocompatibility system. HLA-typing is done before transplantation to determine the degree of histocompatability. HLA is an acronym for Human Leukocyte Antigens).

Human lymphocyte antigen. One of a group of proteins found on the surface of white blood cells and other cells that play an important part in the body's immune response to foreign substances. These antigens vary from person to person, and an HLA test is done before organ transplantation to find out if tissues match between a donor and a recipient. Also called human leukocyte antigen.

see human leukocyte antigens.
  

proteins located on the surface of the cell that help the immune system identify the cell either as one belonging to the body or as one from outside the body. Some patterns of these proteins may mean increased risk of developing type 1 diabetes.