摘要
应用Ｓ—Ｐ免疫组织化学方法研究６２例（男性５１例，女性１１例，年龄３４～６８岁，平均年龄５３．７岁）肺癌组织中Ｐ１６蛋白和Ｐ５３蛋白的表达情况，并进行增殖细胞核抗原（ＰＣＮＡ）检测，计算细胞增殖指数（Ｐｒｏｌｉｆｅｒａｔｉｏｎｉｎｄｅｘ，ＰＩ）。６２例肺癌组织中Ｐ１６蛋白和Ｐ５３蛋白阳性率分别为５８．１％和５９．７％。腺癌Ｐ１６蛋白的阳性率明显高于小细胞癌（Ｐ＜０．０５）；淋巴结转移阳性组Ｐ１６蛋白的表达显著低于阴性组（Ｐ＜０．０５）；ＰＩ分级为Ⅱ级的Ｐ１６蛋白表达显著高于Ⅳ级（Ｐ＜０．０５）。不同组织类型肺癌中Ｐ５３蛋白的表达未见明显差异，淋巴结转移阳性组Ｐ５３蛋白的表达高于阴性组（Ｐ〈０．０１）；不同ＰＩ分级中Ｐ５３蛋白的表达，Ⅳ级明显高于Ⅰ级（Ｐ〈０．０５）和Ⅱ级（Ｐ〈０．０５），Ⅲ级明显高于Ⅰ级（Ｐ〈０．０５）和Ⅱ级（Ｐ〈０．０５）。Ｐ１６蛋白低表达和Ｐ５３蛋白过表达之间未见明显相关。揭示Ｐ１６蛋白低表达和Ｐ５３蛋白过表达均有促进肺癌细胞增殖的作用，Ｐ１６蛋白的表达与肺癌的细胞分化有关，Ｐ５３蛋白过表达对肺癌细胞的转移起重要作用。抑癌基因Ｐ５３对ＭＴＳ１／Ｐ１６基因无明显调控作用，检测Ｐ５３蛋白表达?
By using S-P immunohistochemical methods,the expression of p16 and p53 proteins in 62 cases of human lung carcinoma were studied.The positive expression for p16 and p53 protein were 58.1%and 59.7% respectively.A significant correlation was found between p16 protein lowexpression,p53 protein overexpression and lymph node metastasis(P<0.05).Meanwhile,a significant correlation was found between p16 protein lowexpression、p53 protein overexpression and cell proliferation index(P<0.05).No significant correlation between the expression of p16 and p53 protein was found.The results suggested that p16 protein lowexpression and p53 protein overexpression played an important role in cell proliferation of lung carcinoma.
基金
江西省人民医院科研基金
