The body’s immune system is unable to recognize umbilical cord-derived mesenchymal stem cells as foreign, and therefore they are not rejected. Human umbilical cord tissue stem cells have been administered tens of thousands of times at the Stem Cell Institute, and there has never been a single instance of rejection (graft vs. host disease). As a matter of fact, allogeneic (not the patient’s own) mesenchymal stem cells are approved to treat graft vs. host disease in Canada and New Zealand.
Umbilical cord-derived mesenchymal stem cells also proliferate/differentiate more efficiently than “older” cells, such as those found in the fat, and therefore, they are considered to be more “potent”.
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