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肺癌PTEN和DPC4基因的表达及其临床生物学意义
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- Author:
- No author available
- Journal Title:
- CHINESE JOURNAL OF TUBERCULOSIS AND RESPIRATORY DISEASES
- Issue:
- 6
- DOI:
- 10.3760/j:issn:1001-0939.2002.06.015
- Key Word:
- No keyword available
Abstract： @@ 10号染色体丢失的磷酸酶和张力蛋白同源物(PTEN)基因是一个具有磷酸酯酶活性的抑癌基因,其蛋白产物含有一个酪蛋白磷酸酶的功能区,在肿瘤的发生、发展中起重要作用[1].胰腺癌缺失位点4(DPC4)基因是位于18q21.1上的抑癌基因,其蛋白产物DPC4是转化生长因子β(TGF-β)超家族受体的直接底物,TGF-β具有抑制细胞生长和肿瘤转移等多种功能[2].我们应用原位杂交染色技术检测肺癌组织中DPC4 mRNA、PTEN mRNA的表达,以探讨它们的临床生物学意义.材料与方法取材:中南大学湘雅二院45例肺癌手术切除标本,并取同期手术切除的正常肺组织10份.45例肺癌中,男29例,女16例,年龄范围40～76岁,平均年龄(54.9±8.3)岁.鳞癌20例,腺癌17例,小细胞癌5例,大细胞癌3例;按1997年TNM分期方法进行分期,其中Ⅰ～Ⅱ期25例,Ⅲ期20例.临床和病理证实有区域淋巴结转移者20例.常规制作石蜡包埋切片,切片厚4 μm.其中1张切片作HE染色复查诊断和组织学分级,另2张切片分别行DPC4 mRNA和PTEN mRNA染色.
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