The researchers said the discovery could render the controversial use of fetal tissue obsolete. We don't yet know the limits for stem cells found in fat. This discovery potentially could obviate the need for using fetal tissue. Immature and unspecified, stem cells are key contributors to the body's ability to renew and repair its own tissues. They are unique in their ability to mature into two or more different types of specific cells, depending on their environment.
Researchers grow different tissues in the laboratory by manipulating stem cell environments.
A child might become a fireman, a doctor or a plumber, depending on the influences in their life - or environment. In the same way, these stem cells can become many tissues by making certain changes in their environment. Stem cells already are used as a treatment for leukemia and some joint repairs. With fat as a plentiful source of stem cells, researchers may be able to accelerate the pace of overcoming obstacles that prevent broader applications. These challenges include finding ways to supply blood to larger tissues, control growth and maturation, and eliminate scarring.