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APS inhibits the migration of breast cancer cells. (A) MCF-7 and MDA-MB-231 cells were scratched and subsequently incubated with different concentrations of APS. Images were acquired at 0 and 24 h following the addition of APS. Magnification, ×100. (B) Quantitative analysis of cell migration, expressed as a percentage of the control group (0 µg/ml). **P<0.01 vs. the control group. APS, Astragalus polysaccharide.
