Abstract
Immunoglobulin-like Killer Receptors (KIR) expressed in Natural Killer (NK) cells and cytotoxic T lymphocytes are important immunomodulators. KIR receptors interact with molecules from the Major Histocompatibility complex, particularly the class I molecules. This interaction may either stimulate NK/T cell activity or prevent their cytotoxic function. Some KIR genes are highly polymorphic,…