Human Oligodendrocyte Precursor Cells (HOPC) from Creative Bioarray are isolated from human brain tissue. HOPC are cryopreserved after purification and delivered frozen. Each vial contains >1 x 10^6 cells in 1 ml volume. HOPC are characterized by immunofluorescent method with antibodies to A2B5 and nestin. HOPC are negative for HIV-1, HBV, HCV, mycoplasma, bacteria, yeast and fungi. HOPC are guaranteed to further culture at the conditions provided by Creative Bioarray.