POU5F1 and central nervous system cancer: In GSLCs and glioma tissues, Sohlh1 expression was negatively correlated with the expression of GSLC markers, such as Nestin, CD133, CD44, SOX2 and OCT4, whereas Sohlh1 expression was positively correlated with the expression of GSLC differentiation markers, such as MAP2, GFAP and MBP.