We found a significant increase in MCM2 (3.5 fold), MCM3 (3.1 fold), MCM4 (4.3 fold), MCM5 (3.8 fold), MCM6 (3.5 fold), MCM7 (3.0 fold) and MCM10 (3.6 fold) expressions in tumor tissues (the average fold value of three grades) compared to the normal brain controls. The gene discussed is MCM3; the disease is neoplasm.