Deleted in malignant brain tumor 1 (DMBT1) is a tumor-inhibiting gene that is inactivated in numerous medulloblastoma cell lines compared to normal cells and is situated on chromosome 10q25.3-q26.1 (Madsen et al., 2013; Brim and Ashktorab, 2016; Shen et al., 2016; Garay et al., 2017). The gene discussed is DMBT1; the disease is medulloblastoma.