Abstract
Embrionary Stem Cells (ESC) are capable of self-renewal keeping the pluripotent state. These properties make ESC a potential tool for Regenerative Medicine. Recently, the generation of induced pluripotent stem cells (iPSs) by somatic cell genetic reprogramming (trough Oct4, Sox2, c-Myc and Klf4 genes), created new expectations for cellular therapy. However, beside the genetic risks associ…