Tumor DNA extracted from FFPE tumor tissue (FFPE Tissue Kit, Qiagen S.r.l., Milano, Italy) was amplified using specific primers for exon 4 of IDH1 and IDH2 genes. (IDH1: forward primer 5’-TGTAAAACGACGGCCAGTGGATGCTGCAGAAGCTATAA-3’; reverse primer 5’-CAGGAAACAGCTATGACCTTCATACCTTGCTTAATGGG-3’. IDH2: forward primer 5’-TGTAAAACGACGGCCAGTAATTTTAGGACCCCCGTCTG-3’; reverse primer 5’-CAGGAAACAGCTATGACCGGGGTGAAGACCATTTTGAA-3’). Codon 100 and 132 of IDH1 and codon 140 and 172 of IDH2 were then analyzed by Sanger sequencing method [14 (link)].
Free full text: Click here