Derived from early blastocyst embryos, human embryonic stem cells (hESC) are self-renewable cells with pluripotency. Under special culture conditions, neural cells can be generated from hESC including glial cells, functional neurons, and oligodendrocytes. To avoid other lineage cells as contaminants, the neural progenitor (NP) cell population is necessary to the neural lineage and has been served as an unlimited lineage-restricted cell source for therapeutic and research. Check more details: neural stem cell differentiation