Figure 6. MiR-136-5p suppresses MTDH expression in TNBC cells. (A) Predicted binding site of miR-136-5p in MTDH sequence and mutated nucleotides. (B) MTDH expression in TNBC tissues analyzed using GEPIA 2 dataset. (C) qRT-PCR analysis of MTDH expression in human TNBC tissues. (D) qRT-PCR analysis of MTDH expression in MDA-MB-231, MDA-MB-436, MDA-MB-468, and MCF-10A cells. (E) MTDH expression in TNBC cells transfected with mimic control or miR-136-5p mimic. (F, G) Western blot analysis of MTDH protein levels in TNBC cells transfected with mimic control or miR-136-5p mimic. (H, I) Overexpression of miR-136-5p represses the luciferase activity in TNBC cells transfected with MTDH-Wt, evaluated by luciferase reporter assays. (J) Correlation between FAM83H-AS1 and MTDH expression in breast cancer tissues analyzed by Spearman’s rank test using the GEPIA 2 dataset. * p < 0.05 compared to controls.