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MiR-520a-3p suppresses breast cell proliferation both in vitro and in vivo. (A) miR-520a-3p expression in Hs578T and BT-20 cells with miR-520a-3p mimics transfection. (B, C) Cell proliferation of Hs578T and BT-20 cells with miR-520a-3p mimics transfection was assayed by MTT method. (D) Cell growth curve of nude mice with tumors using Hs578T cells transfected miR-520a-3p mimics or the control. (E) Tumor weight from (D) **P<0.01; *P<0.05.
