About Bone Marrow and Stem Cell Transplants


Stem cells are produced in the spongy area of bones known as marrow. These cells develop into all types of blood cells in the body. A stem cell/bone marrow transplant replaces damaged or destroyed bone marrow stem cells with healthy ones.

The types of hematopoietic (blood) stem cell transplants are:

Allogeneic: in which hematopoietic stem cells from one person are transplanted into another. The donor and recipient can be related or unrelated. These persons include HLA-matched siblings, mismatched family members or unrelated donors.

Autologous: in which a person receives stem cells that he or she donated earlier.

Syngeneic:  in which the patient and donor are identical twins.