Scientists have been
able to reprogram the mature human stem cells, using only the chemical compound
(without genetic manipulation).
A new method of
obtaining cells are as versatile as embryonic stem cells, reduces the risk of
developing cancer or of mutations that can occur as a result of stem cell
therapies, "reprogrammed" with the introduction of additional genes.
Since then, in 2006, it
was announced the discovery of induced pluripotent stem cells ( iPSCs ),
scientists have sought to reduce the number of additional genes required for
such cells. But it is always required at least one encoding a protein Oct-4 .