直肠癌旁移行黏膜P21、P53蛋白表达及其对保肛术的影响  被引量:1

Expression of p21and p53 protein in the transitional mucosa adjacent to rectal cancer and its effect on anus-preserving operation

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作  者:胡曼丽[1] 范恩学[2] 孙海侠[3] 

机构地区:[1]长春医学高等专科学校,130031 [2]吉林大学第二医院 [3]吉林大学第一医院

出  处:《中国实用医药》2010年第24期12-13,共2页China Practical Medicine

摘  要:目的研究直肠癌癌旁黏膜p21、p53蛋白的表达,探讨对直肠癌切缘距离的临床意义。方法应用免疫组化方法检测34例直肠癌癌旁移性黏膜中p21、p53蛋白表达。结果①直肠癌远端扩散有9例,占29.4%,远端扩散距离均在2cm以内;②34例直肠癌标本其癌组织远端均表现为癌旁黏膜,其癌旁黏膜的距离均未超过4cm;③P53蛋白在癌组织中表达阳性为20例,阳性率为58.6%;在癌旁表达为10例,阳性率为29.3%。同时资料表明两者之间无显著性差异;④P21蛋白在癌组织中表达阳性为21例,阳性率为61.5%;在癌旁组织表达为9例,阳性率为26.4%。同时资料表明两者之间无显著性差异。结论直肠癌远端肠管移性黏膜2~4cm处于癌前病变状态,建议远端切除距离应更长些。Objective To study the expression of p21and p53 in the mucosa adjacent to the rectal cancer,we discuss the affection of the mucosa adjacent to the cancer that which distance is safe for the distal edge in rectal cancer dissection. Methods The immunohistochemical research has shown the expression of p21and p53 in mucosa adjacent to the cancer,and the samples came from the 34 patients who had got dissection for rectal cancer. Results ①It was 9 samples who had had distal diffused,the ratio is 29. 4% ,the distance of the distal diffusion were all inner 2 cm. ②All 34 samples of tumor body had the same manifestation,they showed the mucosa adjacent to cancer. In all samples I had studied,the distance of mucosa adjacent to cancer were all inner 4 cm. ③There were 20 samples who got p53 positive in the tumor body,positive rate is 58. 6% ; And the number p53 positive in the tissue of the cancer were 9,it is 26. 4% . It had no difference between them from data analysis. Conclusion There are 2 ~ 4 cm pre-carcinoma pathological stage. It is suggested that the dissection distance of the distal bowel in the rectal cancer should be long enough.

关 键 词:直肠癌 直肠癌旁移行黏膜 P21蛋白 P53蛋白 

分 类 号:R735.37[医药卫生—肿瘤]

 

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