摘要
目的探讨ｃ－ｅｒｂＢ－２及ｐ５３蛋白在乳腺乳头状瘤病及其癌变过程不同发展阶段的表达水平及其对早期癌变的诊断价值。方法对乳腺乳头状瘤病及其癌变不同发展阶段手术标本存档蜡块１８４例进行ｃ－ｅｒｂＢ－２及ｐ５３蛋白免疫组化检测。结果乳头状瘤病自轻度、中度、重度至癌变整个过程，均有不同程度的ｃ－ｅｒｂＢ－２蛋白表达，阳性率逐渐升高，分别为４．８％、２５．０％、３２．４％及５０．０％。ｐ５３蛋白在乳头状瘤病自轻度至重度均无表达，至乳头状瘤病癌变只出现少数表达，阳性率３．５％，而至浸润性癌达高峰，阳性率为２５．０％。结论ｃ－ｅｒｂＢ－２蛋白表达对早期发现重度乳头状瘤病癌变具有重要参考价值。ｐ５３蛋白在这些病变中，未见或甚少表达，对乳头状瘤病早期癌变不具诊断参考意义。
Objective To evaluate the levels of c erbB 2 and p53 protein in different stages of papillomatosis of breast and its malignant transformation and value for early diagnosis. Methods Levels of c erbB 2 and p53 protein were detected by immunohistochemistry in 184 paraffin embeded blocks. Results c erbB 2 protein expression was seen in all stages of papillomatosis with different degrees of proliferation and in tissues undergone malignant transformation. The rate of overexpression increased with the degree of proliferation. The p53 protein expression was not found in papillomatosis with mild to severe proliferation. It was only overexpressed in 3.5% of carcinoma arising from papillomatosis, but increased to 25% when invasion occurred. Conclusion c erbB 2 assay may be helpful for detection of early malignant change of the highly proliferative papillomatosis, especially when histopathological evidence of malignancy is still lacking. p53 protein is of no significant diagnostic value in these lesions.
出处
《中华肿瘤杂志》
CAS
CSCD
北大核心
1997年第5期342-345,共4页
Chinese Journal of Oncology
关键词
乳腺癌
乳头状瘤病
P53蛋白
免疫组织化学
Breast neoplasms
Papillomatosis
Protein p53
Proto oncogene proteins c erbB 2
Immunohistochemistry
