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Invasion assay of FE25, FE25-lenti-ctr, FE25-PRA, and FE25-PRB with or without progesterone (100 μM) treatment. (A) Gross picture of invaded cells stained with crystal violet. (B) Quantification of migrated cells. * p < 0.05. ** p < 0.01 when compared to control (Ctrl). All experiments were repeated in triplicate. PRA, progesterone receptor A; PRB, progesterone receptor B; and P4, progesterone.
