SMARCA4 has been linked to cyclin D1 regulation in other cancer types with opposing effects: SMARCA4 suppresses CCND1 in MCF7 ER+ breast cancer cells37, whereas SMARCA4 knockdown leads to downregulation of cyclin D1 protein in triple-negative breast cancer and glioma cells38,39. This evidence concerns the gene CCND1 and breast carcinoma.