Non-tumorigenic expansion of pluripotent stem cells

摘要

A method for expansion of human embryonic stem (hES) cells in a medium including human umbilical cord-derived mesenchymal stem cells (HUCMSCs) as a feeder is provided. The human embryonic stem cells (hES) maintain the features of embryonic stem cells in the medium, such as pluripotency, unlimited undifferentiated proliferation and normal karyotypes. Also provided is a method for non-tumorigenic expansion of the human embryonic stem cells (hES) that is free from forming teratoma.