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Dihydroisotanshinone I (DT) block the proliferation of breast cancer cell lines. (A) The structure of DT and Salvianolic acid B (SA). (B, C) MCF-7 cells or MDA-MB-231 cells were measured by XTT assay after indicated hours of culturing in the presence of indicated compounds. All the results are representative of at least three independent experiments. (Error bars = mean ± S.E.M. Asterisks (*) mark samples significantly different from DMSO group with p < 0.05).
