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P16 overexpression in pituitary adenomas studied by immunohistochemistry and in situ hybridization 被引量:5
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作者 易静 于德蓉 +4 位作者 陈玉英 熊文浩 李骁雄 沈建康 汤雪明 《Chinese Medical Journal》 SCIE CAS CSCD 2000年第2期66-70,共5页
Objectives To examine the expression of p16 gene and the clinicopathological characteristics of 31 pituitary adenomas To investigate the relationship between p16 expression and cell proliferative activity by analyz... Objectives To examine the expression of p16 gene and the clinicopathological characteristics of 31 pituitary adenomas To investigate the relationship between p16 expression and cell proliferative activity by analyzing the expression of proliferating cell nuclear antigens (PCNA) Methods Immunohistochemistry and in situ hybridization were performed on freshly prepared paraffin embedded specimens of 31 pituitary adenomas Results Varying degrees of overexpression of the p16 gene was found in the tumors specimens A higher proportion of p16 positive tumor cells was associated with bigger size, more frequent invasion and higher recurrence of the tumors The expression of p16 was found to be significantly associated with the degree of PCNA expression Conclusion Though inactivation of the p16 gene is known in wide range of tumors, our study suggested that p16 overexpression might play a role in the development and progression of pituitary adenomas 展开更多
关键词 P16 pituitary adenoma immunohistchemistry in situ hybridization
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