Bone marrow harvested from a non-relative donor is classified as?

Bone marrow harvested from a non-relative donor is classified as allogenic. This terminology is used to describe tissues that are transplanted from a donor to a recipient where the donor is not genetically identical to the recipient. In the context of bone marrow, allogenic transplants involve the transfer of stem cells from a healthy donor who may be unrelated to the recipient, thus allowing for the potential treatment of various blood disorders and cancers.

This classification is significant because the immune system of the recipient may recognize the transplanted tissue as foreign, which can lead to graft-versus-host disease (GVHD). Understanding this classification is crucial in the field of transplantation, helping to guide treatment options and the management of potential complications.

In contrast, autologous refers to using the patient's own cells, isogeneic (or syngeneic) describes a transplant between genetically identical individuals, such as identical twins, highlighting that allogenic specifically pertains to unrelated donors.