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Transwell migration assay. The number of cells migrated to the lower portion of the chamber was significantly decreased in the MD group compared with the CON and NC groups (P < 0.01). There was no significant difference between the CON and NC groups (P > 0.05). bP < 0.01 vs CON and NC groups. A: CON group; B: NC group; C: MD group. MD: Micro-down; NC: Negative control; CON: Control.
