The histologic analysis further revealed that the degree of CCND1 staining was lower (CCND1‐negative) in breast tumor tissues with high ZC3H12D staining (ZC3H12D‐positive), but greater CCND1 staining (CCND1‐positive) was observed in breast tumor tissues with greater DDX5 staining (DDX5‐positive) (Figure 7G). The gene discussed is CCND1; the disease is breast neoplasm.