Cell therapy describes the process of introducing new cells into a tissue in order to treat a disease. Cell therapies often focus on the treatment of hereditary diseases, with or without the addition of gene therapy. There are many potential forms of cell therapy: The transplantation of stem cells that are autologous (from the patient) or allogeneic (from another donor). See also: Stem cell treatments The transplantation of mature, functional cells. The tranplantation of progenitor cells. The application of modified human cells that are used to produce a needed substance...