The average tumor size was smaller in mice injected with β3GnT8 knockdown cells (11.211±3.569 mm3) than non-transfected (22.383±3.821 mm3; P<0.05) and β3GnT8 overexpression cells (36.350±4.424 mm3; P<0.05). The gene discussed is B3GNT8; the disease is neoplasm.