Figure 3. Oxidative metabolism is enhanced in low pH culture conditions.
(A) LC-MS/MS-based metabolomics analysis of TCA cycle metabolites in control (7.4) and low pH (7.0) culture conditions. (B) 3H-glutamine uptake of S2-013 and Capan-1 in control and low pH conditions. (C) Intracellular ATP levels of S2-013 and Capan-1 in control and low pH conditions. (D) Sensitivity of S2-013 and Capan-1 cells to oligomycin in control and low pH. Data in bar charts is normalized to the values for the control pH (7.4). Error bars represent mean ± S.E.M. from at least three different samples. A two-tailed Student’s t-test was conducted on Figure 3A–3C with p-values * p<0.05, **p<0.01, *** p<0.001.
