华西口腔医学杂志

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人端粒酶逆转录酶与c-myc和刺激蛋白1在成釉细胞瘤中的表达

钟 鸣1,李自娟1,王 洁1,张 波2,候 琳2,宫雁冰1   

  1. 1.中国医科大学口腔医院 病理科,辽宁 沈阳110002;2.北京大学医学部 病理学系,北京100083
  • 收稿日期:2004-12-25 修回日期:2004-12-25 出版日期:2004-12-20 发布日期:2004-12-20
  • 通讯作者: 钟 鸣,Tel:024-22891642
  • 作者简介:钟 鸣(1955-),男,辽宁人,教授,学士
  • 基金资助:
    辽宁省自然科学基金资助项目(20032057)

Expression of Telomerase Activity and c-myc and Stimulatory Protein 1 in Human Ameloblastoma

ZHONG Ming1,LI Zi-juan1,WANG Jie1,ZHANG Bo2,HOULin2,GONG Yan-bing1   

  1. 1.Dept.ofPathology,College ofStomatology,China Medical University,Shenyang110002,China; 2.Medical Department,Peking University,Beijing100083,China
  • Received:2004-12-25 Revised:2004-12-25 Online:2004-12-20 Published:2004-12-20

摘要: 目的 研究原癌基因转录因子c-myc和刺激蛋白1(SP1)在人成釉细胞瘤(AB)中的表达及与端粒酶逆转 录酶(hTERT)的关系。方法 选取54例AB(原发31例,复发19例,恶变4例)存档蜡块,采用原位杂交检测AB中 c-myc mRNA、hTERTmRNA的表达,采用免疫组化SP法,检测AB中SP1蛋白的表达。结果 c-myc mRNA在AB中 阳性率为81·5%(44/54),hTERTmRNA为94·4%(51/54),SP1为83·3%(45/54);伴随AB的复发与恶变,3者表达强 度上升;相关性分析得出hTERT与c-myc之间存在相关性(rs=0·853,P<0·001),hTERT与SP1之间存在相关 性(rs=0·900,P<0·001)。结论 hTERT在AB中明显增加的活性可能与转录因子c-myc和SP1有关,3者在AB中 的表达趋势与AB的临床生物学特性相关。

关键词: 成釉细胞瘤, 牙源性角化囊肿, 端粒酶逆转录酶, 细胞癌基因, 刺激蛋白1

Abstract:

Objective To study the oncogene transcriptor c-myc, stimulatory protein 1 (SP1) expression in ameloblastoma (AB) and their relation with telomerase reverse transcripase (hTERT), and to investigate the clinical biological characteristics of AB.Methods The expressionwas observed in AB by in situ hybridization and SPmethod.Results The positive rates of c-myc mRNA, hTERTmRNA and SP1 protein were 81·5%(44/54)、94·4%(51/54) and 83·3%(45/54), respectively. Their positive rates increased as AB recurred and transformed malignantly. A strong correlation was found between hTERT and c-myc, hTERT and SP1 (rs=0·853,P<0·001;rs=0·900,P<0·001).Conclusion Activity of telomerase plays an important role in the tu- morigenesis development of AB. Increasing of hTERT expression may be related to c-myc and SP1. The expression of these three parameters has a significant correlation with the clinical biological characteristics of AB.

Key words: ameloblastoma, odontogenic keratocyst, telomerase reverse transcriptase, cellular oncogene, stimulatory protein 1