Since miRNAs mainly work by negatively regulating gene expression, for the downregulated miRNAs (miR‐194‐5p, miR‐802‐5p, miR‐17‐3p, miR‐145‐5p, and miR‐338‐3p), we looked for oncogenic proteins, while for the upregulated miRNAs (miR‐205‐5p, miR‐92a‐1‐5p, and miR‐181a‐1‐3p), we looked for tumor‐suppressive proteins with a potential role in BCBM. The gene discussed is PROS1; the disease is neoplasm.