高级搜索
乳腺导管内乳头状瘤和导管癌中Pten、p16基因蛋白表达研究[J]. 肿瘤防治研究, 2004, 31(12): 733-735. DOI: 10.3971/j.issn.1000-8578.2063
引用本文: 乳腺导管内乳头状瘤和导管癌中Pten、p16基因蛋白表达研究[J]. 肿瘤防治研究, 2004, 31(12): 733-735. DOI: 10.3971/j.issn.1000-8578.2063
Studies on the Expression of Pten and p16 in Intraductal Papilloma and Ductal Carcinoma of Breast[J]. Cancer Research on Prevention and Treatment, 2004, 31(12): 733-735. DOI: 10.3971/j.issn.1000-8578.2063
Citation: Studies on the Expression of Pten and p16 in Intraductal Papilloma and Ductal Carcinoma of Breast[J]. Cancer Research on Prevention and Treatment, 2004, 31(12): 733-735. DOI: 10.3971/j.issn.1000-8578.2063

乳腺导管内乳头状瘤和导管癌中Pten、p16基因蛋白表达研究

Studies on the Expression of Pten and p16 in Intraductal Papilloma and Ductal Carcinoma of Breast

  • 摘要: 目的 分析抑癌基因Pten及p16蛋白在乳腺导管内乳头状瘤和导管癌组织中的表达, 以进一步探讨导管内乳头状瘤的生物学特性。方法 应用间接免疫荧光染色流式细胞术对 2 3例乳腺导管内乳头状瘤、2 9例导管癌Pten及p16在蛋白水平上的表达情况进行定量检测。结果 正常乳腺组织、导管内乳头状瘤和导管癌组织中Pten蛋白表达阳性率逐渐下降, 分别为 10 0 %、4 7.83%及 10 .34%, 三组比较有显著性差异 (P <0 .0 1)。与Pten结果相似, 在所有的正常乳腺组织中 p16均呈阳性表达, 而在导管内乳头状瘤和导管癌中p16的表达均有不同程度降低, 分别为 82 .6 1%及 2 4 .14 %, 两组与正常对照比较有显著性差异 (P <0 .0 1), 而导管内乳头状瘤与导管癌之间 p16蛋白表达无统计学意义 (P >0 .0 5 )。结论 乳腺导管内乳头状瘤存在Pten和p16蛋白表达异常, 提示导管内乳头状瘤是一种具有抑癌基因变化的癌前病变。

     

    Abstract: Objective To explore the expression of Pten and p16 in intraductal papilloma(IDP) and ductal carcinoma of breast and to further evaluate the biological features of intraductal papilloma of breast. Methods Paraffin-embedded specimens from 23 patients with IDP and 29 patients with invasive ductal carcinoma were included in this study. The expression of Pten and p16 at protein level was examined using indirect immunofluorescent staining and flow cytometric method. Results The positive expression rates of...

     

/

返回文章
返回