Exemplary results of molecular analyses in glioblastoma cells.

(A) An exemplary FISH result presenting chromosome 7 polysomy (a single cell magnified in the rectangle); EGFR probe (red signals); CEP 7 control probe (green signals); magnification 1000x; (B) An exemplary TP53 sequencing result, the line marks the mutated nucleotide in codon 237; (C,D) Exemplary MLPA results showing (C) the genetic alterations (EGFR and MDM4 amplification) in an early passage of cell cultured under classical conditions and (D) their absence in a late passage of the cells from the same tumor.