Fig. 1
mRNA expression of tumor-associated genes (measured by qPCR) in AT1 prostate and Walker-256 mammary carcinoma cells after 24 h under (a) acidotic (pH 6.6, room air), (b) hypoxic (pH 7.4, pO2 = 1.5 mmHg) or (c) combined acidotic and hypoxic (pH 6.6, pO2 = 1.5 mmHg) conditions. n = 4–27; (*) p < 0.05, (**) p < 0.01 vs. control; (#) p < 0.05, (##) p < 0.01 AT1 vs. Walker-256 cells