<unk>  is the transfer of<unk>  or its fragments from one individual to another. It is under research for induction of immunological tolerance for other transplanted organs. Success has been achieved in rodent models. Recently, evidence has been obtained for a tolerogenic effect of a<unk>  transplant in miniature swine. Also, the<unk>  harbors primitive hematopoietic progenitor cells.<unk>  has been performed on humans with mixed results. __TOC__
Spleen transplantation
Thymus transplantation
Donor lymphocyte infusion
Syngeneic stem cell transplantation
Stem-cell therapy
Autosplenectomy
Organ transplantation
Autologous immune enhancement therapy