(A) Relative AQP1 transcript expression in untreated HT-29, HCT116, SW480, and SW620 colon cancer cell lines. Transcript expression was calculated using the ΔΔCt relative quantification method, normalising to PMM1 reference gene. Results are the mean ± SD of biological triplicates, relative to the expression in HT-29. (B) Representative western immunoblot for AQP1 protein expression in untreated HT-29, HCT116, SW480, and SW620 colon cancer cell lines. (C) Relative AQP1 protein expression in untreated HT-29, HCT116, SW480, and SW620 colon cancer cell lines. AQP1 expression was normalised to beta-actin loading control and relative to the expression in HT-29.