PTEN and breast cancer: (66), miR-301a exerted its oncogenic role in BC by deactivating the phosphatase tumor suppressor gene phosphatase and tensin homolog (PTEN), further stimulating the canonical pathway of gene transcription Wingless/Integrated/cadherin-associated protein beta 1 (Wnt/β-catenin), thus establishing a connection between miR-301a expression and BC poor clinical outcome.