METHODS: The monoclonal antibody of QPO was produced by cell fusion and identified by Western blotting and the expression of malignant melanoma was studied by the immune histochemical technique.

• 方法:利用细胞融合法制作单克隆抗体,蛋白免疫电泳法检测单克隆抗体,免疫组化法研究PPO基因在恶性黑色素瘤中的表达情况。