Bone Marrow - soft tissue located in the cavities of bones.
Bone marrow is the source of all blood cells.
Gene Therapy - treatment of genetic diseases by providing the correct or normal form of the abnormal gene causing a disease. Genetic Disease - a disease due to an abnormal condition of one or more genes. While most diseases have some genetic component, the term genetic disease is usually applied to those cases where one or two genes determine the disease, such as sickle cell anemia, Tay Sachs disease, and cystic fibrosis. Graft Failure - absence of adequate function in a transplanted organ or tissue. These molecules have a role in regulating the immune response in general.