Rejection phenomenon

…Transplantation refers to the replacement of an organ that has lost its function due to disease or other reasons with a healthy organ, but the phenomenon in which the transplanted tissue, whether homogeneous or heterogeneous, eventually undergoes necrosis and is eliminated, also known as rejection, is a phenomenon in which the transplanted tissue or organ acts as an antigen on the host, causing antibodies to be produced in the host's body, and cells carrying these antibodies attack the transplant, causing a rejection reaction. …

*Some of the terminology explanations that refer to the "rejection phenomenon" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…病気などによって機能を失った臓器を健康な臓器で置き換えることを移植というが，移植された組織が同種か異種かにかかわらず，やがて壊死に陥り，排除される現象をいい，拒絶現象ともいう。移植された組織あるいは器官が宿主に対して抗原として働き，宿主の体内で抗体がつくられ，この抗体をもつ細胞が移植体を攻撃して拒絶反応を起こすと考えられている。…

※「拒絶現象」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報