Figure 6.

DUSP1 is a direct target of miR‐133b. The two target sites for miR‐133b within the DUSP1 promoter RNA (A). The expression of DUSP1 mRNA in BC tissues and adjacent normal tissues (B). miR‐133b upregulated the expression of DUSP1 in 5637 and T24 cells via transfection with miR‐133b mimics (C). DUSP1 mRNA was upregulated in 5637 and T24 cells after incubated with miR‐133b‐EXO (D). Western blots of DUSP1 in T24 cells were treated with NC or miR‐133b mimics and NC‐EXO or miR‐133b‐EXO (E). *P < .05