在进行器官移植时,当供体为异种动物时,称为异种移植;当在同一种属但基因有差异的个体之间的移植,称为同种移植。当在纯系动物或同卵双生儿间的,即有相同基因的个体之间进行的器官移植,称为同系移植。一般常进行的是同种移植。在同种移植中,供体的组织细胞表面上存在着与受体不 Transplantation is referred to as xenotransplantation when the donor is a xenogeneic organ at the time of organ transplantation, and allograft between individuals of the same genus but genetically different. Organ transplants, which are performed between individuals of the pure line or twins, ie, individuals with the same gene, are called homografts. Commonly carried out is the same kind of transplant. In allotransplantation, donor cells do not exist on the surface of the cell with the receptor