Table 1

Biallelic methylation of a CTCF-binding site detected by bisulfite sequencing in CRCs and normal mucosa with LOI or with ROI of IGF2

Number of cases with biallelic methylation
TumorNormal mucosaTotal
LOI6/9 (66%)3/8 (38%)9/17 (53%)
ROI0/7 (0%) 0/6 (0%) 0/13 (0%)