ALDH1A1 and glioblastoma: Moreover, we have chosen two different patient-derived glioblastoma cell lines (3054 and 3060) according to their increased expression levels of ALDH1A3 compared to the other ALDH1A isoforms (ALDH1A3 fold change of 8.58 and 7.34, ALDH1A2 fold change 5.8 and 5.6, ALDH1A1 4.1 and 4.5, respectively, as reported in HGCC site https://www.hgcc.se/).