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Assessment of cytotoxicity in ovarian cancer cells cultured at acidic pH. ES-2 and A2780 cells treated with 100 μM carboplatin or 100 μM CQ at pH 7.4, 6.8 or 6.6. Twenty-four hours after treatment, cell viability was evaluated by MTT assay (A), ATPlite assay (B), protease assay (C) and neutral red assay (D). Data are means ± SE for three repeated measurements.
