Immunological tolerance and regulatory progenitor cells

摘要

Described herein is a method for modulating an immune reaction between lymphocytes and a body recognized by the lymphocytes as foreign. The method exploits the immunomodulating activity of a new class of progenitor cells termed HUCPVCs derived from the perivascular region of human umbilical cord. The method can also employ soluble factors exuded by cultured HUCPVCs. The method is useful to treat immune disorders including graft versus host disease, autoimmune disorders, and the like.