T-cell subgroup count: CD4 268/ul↓, CD8 216/ul↓, CD3 544/ul↓, tumor markers: carbohydrate antigen (CA125) 525.6U/ml↑, CA72 419.90U/ml↑, and circulating tumor cells (CTC): 8.7 Fu/3 ml. The gene discussed is CD4; the disease is neoplasm.