Table 2.
Sample | KIT/PDGFRα genotype | IGF1R | IGF2R | IGF1 | IGF2 |
---|---|---|---|---|---|
1 | wild type | 17.3 | 0.86 | 69 | 0.15 |
2 | not available | 1.60 | 0.50 | 0.66 | 0.60 |
3 | KIT exon 11 mutant | 29.1 | 0.11 | 2.18 | 0.04 |
4 | KIT exon 11 mutant | 46.5 | 0.43 | 63.9 | 0.55 |
Values given are ratios of RNA expression levels in post/pre samples. RNA, extracted from flash-frozen biopsy specimens and from resected tumors following up to 8 weeks of IM treatment was subjected to quantitative RT-PCR analysis using TaqMan gene expression assays. RNA levels were first normalized to HPRT.