In fact, of the 38 genes identified, only 3 genes (8%) were expressed at higher levels in the tumor cells, whereas 24 genes (63%) were expressed at significantly higher levels in whole tumor relative to Olig2 tumors cells and 11 genes (29%) did not demonstrate a significant expression difference between Olig2 cells and whole tumors. The gene discussed is OLIG2; the disease is neoplasm.