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增殖细胞核抗原（Ｐｒｏｌｉｆｅｒａｔｉｎｇｃｅｌｌｎｕｃｌｅａｒａｎｔｉｇｅｎ，ＰＣＮＡ）是近年发现的一种能反映细胞增殖分数和所处周期的指标【１、２】，与一些恶性肿瘤生物学行为有密切关系，我们采用ＳＰ免疫组化法对５４例食管癌ＰＣＮＡ的表达及意义进行了初?
Proliferating cell nuclear antigen (PCNA) is a newly discovered indicator of cell proliferation fraction and period (1,2). It is closely related to the biological behavior of some malignant tumors. We used SP immunohistochemistry Act of 54 cases of esophageal cancer PCNA expression and significance of the beginning?