CD44 and central nervous system cancer: Flow cytometer analysis revealed that mesenchymal-like cells were positive 96 ± 1.7, 85 ± 3.5, and 95 ± 2 in low grade glioma, and 95 ± 1, 69 ± 2.5, and 82 ± 7 in high grade glioma for CD44, CD105 and CD166, respectively.