Immune Privilege

High Quality Content by WIKIPEDIA articles! Immune privilege is a term used to describe certain sites in the body which are able to tolerate the introduction of antigen without eliciting an inflammatory immune response. Tissue grafts are normally recognised as foreign antigen by the body and attacked by the immune system. However in immune privileged sites, tissue grafts can survive for extended periods of time without rejection occurring. Immunologically privileged sites were thought to include: