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The migration of Sca-1+ CSCs in vitro after transfection by the Transwell chamber assay in blank, negative control, miRNA-21 mimic, and miRNA-21 inhibitor groups (× 200, DAPI staining; * – the miRNA-21 mimic group was compared with the other 3 groups, P<0.05) (A – blank group; B – miRNA-21 mimic group; C – miRNA-21 inhibitor group; D – negative control group).
