Figure 4From: Cellular response to 5-fluorouracil (5-FU) in 5-FU-resistant colon cancer cell lines during treatment and recoveryIncorporation of 5-FU into DNA of parental and 5-FU-resistant HCT116 cell lines in response to 8 and 24-hr. 5-FU treatment: Incorporation of 5-FU into DNA is given as the ratio of disintegrations per minute (dpm) per μg DNA. The dashed line represents background dpm levels.Back to article page