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子宫内膜癌前病变中K-ras与MTS1/p16基因的表达及意义[J]. 肿瘤防治研究, 2004, 31(07): 406-408. DOI: 10.3971/j.issn.1000-8578.269
引用本文: 子宫内膜癌前病变中K-ras与MTS1/p16基因的表达及意义[J]. 肿瘤防治研究, 2004, 31(07): 406-408. DOI: 10.3971/j.issn.1000-8578.269
K-ras and MTS1/p16 Gene Expression in Endometrial Carcinoma and Benign Endometrium and its Significance[J]. Cancer Research on Prevention and Treatment, 2004, 31(07): 406-408. DOI: 10.3971/j.issn.1000-8578.269
Citation: K-ras and MTS1/p16 Gene Expression in Endometrial Carcinoma and Benign Endometrium and its Significance[J]. Cancer Research on Prevention and Treatment, 2004, 31(07): 406-408. DOI: 10.3971/j.issn.1000-8578.269

子宫内膜癌前病变中K-ras与MTS1/p16基因的表达及意义

K-ras and MTS1/p16 Gene Expression in Endometrial Carcinoma and Benign Endometrium and its Significance

  • 摘要: 目的 探讨K ras激活与MTS1/ p16基因突变 /缺失在子宫内膜癌中的发生发展关系。 方法 对子宫内膜癌及癌前病变组织K ras与MTS1/p16蛋白的免疫组化测定并用PCR技术对MTS1/ p16基因在子宫内膜癌中的纯合性缺失进行检测。结果 K ras、p16蛋白广泛存在于子宫内膜癌和癌前病变组织中, 癌前病变K ras表达为 11.9%, 癌组为 6 2 .96 % (P <0 .0 5 ), 而p16表达分别为 76 .5 9%与5 1.85 %。 13例 p16蛋白表达阴性子宫内膜癌PCR扩增, 7例显示外显子 1缺失。K ras表达与细胞恶性程度呈正相关, p16表达则呈负相关。 结论  (1)K ras基因激活与MTS1/ p16基因突变 /缺失导致细胞周期增殖失控, 是内膜癌发生发展的一个重要环节 ;(2 )子宫内膜癌中p16基因外显子 1纯合子缺失可能是p16蛋白表达降低的机制之一 ;(3)动态观测内膜增生组织中的p2 1ras表达阳性者, 对子宫内膜癌的早期发现可能有积极意义

     

    Abstract: Objective To discuss the relationship between K ras gene activation and MTS1/p16 gene mutation/deletion and the progression of endometrial carcinoma. Methods We determine the K ras protein and p16 protein in endometrial carcinoma and benign endometrium by immunohistochemistry, and determine the deletion of extronl of MTS1/p16 gene in endometrial carcinoma. Results The K ras protein and p16 protein extensively exist in endometrial carcinoma and benign endometrium. In benign endometrium K ras protein e...

     

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