Table 3 The comparison of promoter methylation of this study and other reports in colorectal carcinomas
Genes | Number of methylated samples (%) | References (frequency of gene) |
|---|---|---|
APC | 44 (35.2) | Esteller et al. [21] (18%); Arnold et al. [10] (28%); Chen et al. [20] (17.9%); Iacopetta et al. [22] (41.1%) and Fu et al. [23] (41.7%) |
AXIN2 | 41 (32.8) | Koinuma et al. [11] (25%) |
DKK3 | 50 (40) | Yu et al. [12] (52%) |
SFRP2 | 58 (46.4) | Qi et al. [13] (82.8%) |
SFRP4 | 38 (30.4) | Qi et al. [13] (32.4%) |
SFRP5 | 33 (26.4) | Qi et al. [13] (54.3%) |
SOX7 | 40 (32) | No Reference |
SOX17 | 42 (33.6) | No Reference |
WIF1 | 52 (41.6) | Lee et al. [24] (74%) |
WNT5a | 28 (22.4) | Rawson et al. [25] (18.8%) |