Stem cells are the body’s raw materials. They are unspecialized cells that have ability to renew themselves through mitotic cell division and differentiate into a diverse range of specialized cell types. They are critical for the development, growth, maintenance and repair of bones, muscles, blood, brain, nerves, skin and other organs. There are several sources of stem cells:
- Embryonic Stem Cells: These stem cells come from embryos that are three to five days old. These are pluripotent stem cells and can be used to regenerate or repair diseased tissues and organs
- Adult Stem Cells: These stem cells are found in most adult tissues (bone marrow or fat) in small numbers.